1. |
-
Codex and Code : Aestethcis, Language and Politics in an Age of Digital Media, NORLIT 2009, Stockholm, August 6-9, 2009
- 2010
-
Editorial collection (peer-reviewed)abstract
- The conference Codex and Code: Aesthetics, Language and Politics in an Age of Digital Media (NorLit 2009)was held at the Royal Institute of Technology (KTH) in Stockholm, August 6–9, 2009. The conference was organized by the Nordic Association for Comparative Literature (NorLit); the Department of Culture and Communication, Linköping University; the School of Computer Science and Communication, Royal Institute of Technology (KTH); the Department of Comparative Literature, Stockholm University; the Department of Culture and Communication, Södertörn University College; and the Department of Comparative Literature, Uppsala University. The aim of the conference was to develop the study of Comparative Literature through Nordic collaboration both in its own discipline and in Modern Language and Cultural studies. As the title for the conference suggests, the principal question for the conference was the challenge that the study of literature encounters in an age of digitalization and globalization. It was our aim to encourage discussion of how literary studies respond to the ongoing changes in media and technology, politics and economy. Many have argued that the Humanities currently are in a state of crisis. We believe that the discipline seldom has found itself in such an interesting and fruitful historical moment. Several of these questions have surfaced during earlier media system changes, in particular during Romanticism and Modernism, which provided the conference with an historical frame. The conference Codex and Code also addressed questions of authenticity and originality, identity and gender, literary genres and reading practices, media and materiality, culture and popular culture, language and history, world literature, work aesthetics, translations, and canon formation. The conference Codex and Code wanted to stimulate interdisciplinary scholarly research of the literary in a broad sense. The conference was open to scholars in Comparative Literature and in Classical and Modern Languages, Aesthetics, Media and Communication studies, Film and Theatre studies, Philosophy and adjacent disciplines. The conference was organized around a number of thematic sessions in which researchers and scholars presented and discussed papers. The conference has received generous financial support from the Bank of Sweden Tercentenary Foundation, Magnus Bergwall foundation, Granholms foundation, Linköping University, School of Computer Science and Communication, Royal Institute of Technology, Svenska litteratursällskapet; the Swedish Academy, Swedish Science Council, and Vitterhetsakademien.
|
|
2. |
-
Codex and Code: Aestethcis, Language and Politics in an Age of Digital Media : NORLIT 2009, Stockholm, August 6-9, 2009
- 2010
-
Editorial proceedings (peer-reviewed)abstract
- The aim of the conference was to develop the study of Comparative Literature through Nordic collaboration both in its own discipline and in Modern Language and Cultural studies. As the title for the conference suggests, the principal question for the conference was the challenge that the study of literature encounters in an age of digitalization and globalization. It was our aim to encourage discussion of how literary studies respond to the ongoing changes in media and technology, politics and economy. Many have argued that the Humanities currently are in a state of crisis. We believe that the discipline seldom has found itself in such an interesting and fruitful historical moment. Several of these questions have surfaced duringearlier media system changes, in particular during Romanticism and Modernism, which provided the conference with an historical frame. The conference Codex and Code also addressed questions of authenticity and originality, identity and gender, literary genres and reading practices, media and materiality, culture and popular culture, language and history, world literature, work aesthetics, translations, and canon formation.
|
|
3. |
- Gad, Helge, et al.
(author)
-
MTH1 inhibition eradicates cancer by preventing sanitation of the dNTP pool
- 2014
-
In: Nature. - : Nature Publishing Group. - 0028-0836 .- 1476-4687. ; 508:7495, s. 215-221
-
Journal article (peer-reviewed)abstract
- Cancers have dysfunctional redox regulation resulting in reactive oxygen species production, damaging both DNA and free dNTPs. The MTH1 protein sanitizes oxidized dNTP pools to prevent incorporation of damaged bases during DNA replication. Although MTH1 is non-essential in normal cells, we show that cancer cells require MTH1 activity to avoid incorporation of oxidized dNTPs, resulting in DNA damage and cell death. We validate MTH1 as an anticancer target in vivo and describe small molecules TH287 and TH588 as first-in-class nudix hydrolase family inhibitors that potently and selectively engage and inhibit the MTH1 protein in cells. Protein co-crystal structures demonstrate that the inhibitors bindin the active site of MTH1. The inhibitors cause incorporation of oxidized dNTPs in cancer cells, leading to DNA damage, cytotoxicity and therapeutic responses in patient-derived mouse xenografts. This study exemplifies the non-oncogene addiction concept for anticancer treatment and validates MTH1 as being cancer phenotypic lethal.
|
|
4. |
|
|
5. |
-
NORLIT 2009, Codex and Code: Aestethcis, Language and Politics in an Age of Digital Media : Stockholm, August 6-9, 2009
- 2010
-
Editorial proceedings (peer-reviewed)abstract
- The aim of the conference was to develop the study of Comparative Literature through Nordic collaboration both in its own discipline and in Modern Language and Cultural studies. As the title for the conference suggests, the principal question for the conference was the challenge that the study of literature encounters in an age of digitalization and globalization. It was our aim to encourage discussion of how literary studies respond to the ongoing changes in media and technology, politics and economy. Many have argued that the Humanities currently are in a state of crisis. We believe that the discipline seldom has found itself in such an interesting and fruitful historical moment. Several of these questions have surfaced duringearlier media system changes, in particular during Romanticism and Modernism, which provided the conference with an historical frame. The conference Codex and Code also addressed questions of authenticity and originality, identity and gender, literary genres and reading practices, media and materiality, culture and popular culture, language and history, world literature, work aesthetics, translations, and canon formation.
|
|
6. |
- Ahlberg, Erik, et al.
(author)
-
"Vi klimatforskare stödjer Greta och skolungdomarna"
- 2019
-
In: Dagens nyheter (DN debatt). - 1101-2447.
-
Journal article (pop. science, debate, etc.)abstract
- DN DEBATT 15/3. Sedan industrialiseringens början har vi använt omkring fyra femtedelar av den mängd fossilt kol som får förbrännas för att vi ska klara Parisavtalet. Vi har bara en femtedel kvar och det är bråttom att kraftigt reducera utsläppen. Det har Greta Thunberg och de strejkande ungdomarna förstått. Därför stödjer vi deras krav, skriver 270 klimatforskare.
|
|
7. |
- Algurén, Beatrix, et al.
(author)
-
Idéburna innovationer – En testbädd för personcentrerad vård och omsorg
- 2014
-
In: Almedalsveckan.
-
Conference paper (pop. science, debate, etc.)abstract
- Välfärdens utmaningar måste bemötas med innovativa och förebyggande arbetssätt och en helt ny användning av teknik. Men hur skapar man innovationer i vårdens och omsorgens vardag? Hur kan man se det friska i människan och hur kan medarbetare, patienter/brukare och närstående tillsammans hitta nya arbetssätt som gör vården och omsorgen bättre? Bräcke diakoni driver tillsammans med Famna, Jönköping Academy och Alkit Communication AB Famnas testbädd för en personcentrerad vård och omsorg. I den bygger man ett stöd för idéburna vård- och omsorgsgivare för att utveckla nya idéer till spridningsbara innovationer med fokus på de vi finns till för. I ett första test på Bräcke diakoni skapar man möjligheter att möta den enskildes behov och önskemål. Arbetet utgår från en strukturerad dokumentation och uppföljning som med hjälp av ICF och nya IT-stöd följer den enskildes väg genom vården och omsorgen. Möt Famnas testbädd, Vinnova och Äldreutredningen för att diskutera framtidens vård och omsorg.
|
|
8. |
- Andersson, Camilla, et al.
(author)
-
Assessment of Whether Patients' Knowledge, Satisfaction, and Experience Regarding Their 18F-Fluoride PET/CT Examination Affects Image Quality
- 2016
-
In: Journal of Nuclear Medicine Technology. - : Society of Nuclear Medicine. - 0091-4916 .- 1535-5675. ; 44:1, s. 21-25
-
Journal article (peer-reviewed)abstract
- The aim of this study was to investigate patients’ previous knowledge, satisfaction and experience regarding a (18F)-fluoride positron emission tomography / computed tomography examination ((18F)-fluoride PET/CT) and to explore whether experienced discomfort during the examination or pain was associated with reduced image quality. A further aim was to explore whether patients’ health-related quality of life (HRQoL) was associated with their satisfaction and experiences of the examination.Methods: Fifty consecutive patients with a histopathological diagnosis of prostate cancer who were scheduled for (18F)-fluoride PET/CT were asked to participate in the study, which was performed between November 2011 and April 2013. A questionnaire was used to collect information regarding the patients’ previous knowledge and experience of the examination. Image quality assessment was performed according to an arbitrary scale. The EORTC-QLQ-C30 and QLQ-PR25 were used to assess HRQoL.Results: Forty-six patients (96%) completed the questionnaires. Twenty-six per cent of participants did not know at all what a (18F)-fluoride PET/CT examination was. The majority (52-70%) were to a very high degree satisfied with the care provided by the nursing staff but less satisfied with the information given prior to the examination. The image quality was similar in patients who were exhausted or claustrophobic during the examination and those who were not. No correlations between HRQoL and the participants’ experience of (18F)-fluoride PET/CT were found.Conclusion: The majority of participants were satisfied with the care provided by the nursing staff, but there is still room for improvement especially regarding the information prior to the examination. Long examination time may be strenuous, for the patient but there was no difference in image quality between patients who felt discomfort during the examination or pain and those who did not.
|
|
9. |
- Andersson, Camilla, et al.
(author)
-
Patient Experience of an 18F-FDG-PET/CT Examination: : Need for Improvements in Patient Care
- 2015
-
In: Journal of Radiology Nursing. - : Elsevier. - 1546-0843. ; 34:2, s. 100-108
-
Journal article (peer-reviewed)abstract
- The aims of this study were to investigate the patients' knowledge about and experience of an 18F-fluoro-deoxy-glucose (FDG)-positron emission tomography (PET)/computed tomography (CT) examination and to investigate the self-reported feelings of stress, level of physical activity, and health-related quality of life (HRQoL) and to find out if this was related to how they experienced the examination. A cross-sectional survey was used to collect information on 198 patients with known or suspected malignancy. As many as 32% to 63% were satisfied with the nursing staff, the communication, and the professional skills. Most patients did not know beforehand what an FDG-PET/CT examination was. The HRQoL, level of perceived stress, and physical activity were relatively low. A better HRQoL, lower level of perceived stress, and a higher level of physical activity were correlated to a more positive experience and higher education to more knowledge about the examination (p < .01–.05). The information before the examination needs to be improved. The results may be used to improve patient care and optimize imaging procedures.
|
|
10. |
- Arosio, Paolo, et al.
(author)
-
Kinetic analysis reveals the diversity of microscopic mechanisms through which molecular chaperones suppress amyloid formation
- 2016
-
In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 7
-
Journal article (peer-reviewed)abstract
- It is increasingly recognized that molecular chaperones play a key role in modulating the formation of amyloid fibrils, a process associated with a wide range of human disorders. Understanding the detailed mechanisms by which they perform this function, however, has been challenging because of the great complexity of the protein aggregation process itself. In this work, we build on a previous kinetic approach and develop a model that considers pairwise interactions between molecular chaperones and different protein species to identify the protein components targeted by the chaperones and the corresponding microscopic reaction steps that are inhibited. We show that these interactions conserve the topology of the unperturbed reaction network but modify the connectivity weights between the different microscopic steps. Moreover, by analysing several protein-molecular chaperone systems, we reveal the striking diversity in the microscopic mechanisms by which molecular chaperones act to suppress amyloid formation.
|
|
11. |
|
|
12. |
- Bokhorst, Stef, et al.
(author)
-
Changing Arctic snow cover : A review of recent developments and assessment of future needs for observations, modelling, and impacts
- 2016
-
In: Ambio. - : Springer Science and Business Media LLC. - 0044-7447 .- 1654-7209. ; 45:5, s. 516-537
-
Research review (peer-reviewed)abstract
- Snow is a critically important and rapidly changing feature of the Arctic. However, snow-cover and snowpack conditions change through time pose challenges for measuring and prediction of snow. Plausible scenarios of how Arctic snow cover will respond to changing Arctic climate are important for impact assessments and adaptation strategies. Although much progress has been made in understanding and predicting snow-cover changes and their multiple consequences, many uncertainties remain. In this paper, we review advances in snow monitoring and modelling, and the impact of snow changes on ecosystems and society in Arctic regions. Interdisciplinary activities are required to resolve the current limitations on measuring and modelling snow characteristics through the cold season and at different spatial scales to assure human well-being, economic stability, and improve the ability to predict manage and adapt to natural hazards in the Arctic region.
|
|
13. |
- Callaghan, Terry, et al.
(author)
-
Multi-Decadal Changes in Tundra Environments and Ecosystems : Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF)
- 2011
-
In: Ambio. - : Springer Science and Business Media LLC. - 0044-7447 .- 1654-7209. ; 40:6, s. 705-716
-
Journal article (peer-reviewed)abstract
- Understanding the responses of tundra systemsto global change has global implications. Most tundraregions lack sustained environmental monitoring and oneof the only ways to document multi-decadal change is toresample historic research sites. The International PolarYear (IPY) provided a unique opportunity for such researchthrough the Back to the Future (BTF) project (IPY project#512). This article synthesizes the results from 13 paperswithin this Ambio Special Issue. Abiotic changes includeglacial recession in the Altai Mountains, Russia; increasedsnow depth and hardness, permafrost warming, andincreased growing season length in sub-arctic Sweden;drying of ponds in Greenland; increased nutrient availabilityin Alaskan tundra ponds, and warming at mostlocations studied. Biotic changes ranged from relativelyminor plant community change at two sites in Greenland tomoderate change in the Yukon, and to dramatic increasesin shrub and tree density on Herschel Island, and in subarcticSweden. The population of geese tripled at one sitein northeast Greenland where biomass in non-grazed plotsdoubled. A model parameterized using results from a BTFstudy forecasts substantial declines in all snowbeds andincreases in shrub tundra on Niwot Ridge, Colorado overthe next century. In general, results support and provideimproved capacities for validating experimental manipulation,remote sensing, and modeling studies.
|
|
14. |
- Dods, Robert, 1989, et al.
(author)
-
From Macrocrystals to Microcrystals: A Strategy for Membrane Protein Serial Crystallography.
- 2017
-
In: Structure. - : Elsevier BV. - 1878-4186 .- 0969-2126. ; 25:9, s. 1461-1468
-
Journal article (peer-reviewed)abstract
- Serial protein crystallography was developed at X-ray free-electron lasers (XFELs) and is now also being applied at storage ring facilities. Robust strategies for the growth and optimization of microcrystals are needed to advance the field. Here we illustrate a generic strategy for recovering high-density homogeneous samples of microcrystals starting from conditions known to yield large (macro) crystals of the photosynthetic reaction center of Blastochloris viridis (RCvir). We first crushed these crystals prior to multiple rounds of microseeding. Each cycle of microseeding facilitated improvements in the RCvir serial femtosecond crystallography (SFX) structure from 3.3-Å to 2.4-Å resolution. This approach may allow known crystallization conditions for other proteins to be adapted to exploit novel scientific opportunities created by serial crystallography.
|
|
15. |
- Dods, Robert, 1989, et al.
(author)
-
Ultrafast structural changes within a photosynthetic reaction centre.
- 2021
-
In: Nature. - : Springer Science and Business Media LLC. - 1476-4687 .- 0028-0836. ; 589:7841, s. 310-314
-
Journal article (peer-reviewed)abstract
- Photosynthetic reaction centres harvest the energy content of sunlight by transporting electrons across an energy-transducing biological membrane. Here we use time-resolved serial femtosecond crystallography1 using an X-ray free-electron laser2 to observe light-induced structural changes in the photosynthetic reaction centre of Blastochloris viridis on a timescale of picoseconds. Structural perturbations first occur at the special pair of chlorophyll molecules of the photosynthetic reaction centre that are photo-oxidized by light. Electron transfer to the menaquinone acceptor on the opposite side of the membrane induces a movement of this cofactor together with lower amplitude protein rearrangements. These observations reveal how proteins use conformational dynamics to stabilize the charge-separation steps of electron-transfer reactions.
|
|
16. |
|
|
17. |
|
|
18. |
- Furukawa, Toshi A., et al.
(author)
-
Dismantling, optimising, and personalising internet cognitive behavioural therapy for depression : a systematic review and component network meta-analysis using individual data
- 2021
-
In: Lancet psychiatry. - London, United Kingdom : Elsevier. - 2215-0374 .- 2215-0366. ; 8:6, s. 500-511
-
Research review (peer-reviewed)abstract
- Findings We identified 76 RCTs, including 48 trials contributing individual participant data (11 704 participants) and 28 trials with aggregate data (6474 participants). The participants' weighted mean age was 42.0 years and 12 406 (71%) of 17 521 reported were women. There was suggestive evidence that behavioural activation might be beneficial (iMD -1.83 [95% credible interval (CrI) -2.90 to -0.80]) and that relaxation might be harmful (1.20 [95% CrI 0.17 to 2.27]). Baseline severity emerged as the strongest prognostic factor for endpoint depression. Combining human and automated encouragement reduced dropouts from treatment (incremental odds ratio, 0.32 [95% CrI 0.13 to 0.93]). The risk of bias was low for the randomisation process, missing outcome data, or selection of reported results in most of the included studies, uncertain for deviation from intended interventions, and high for measurement of outcomes. There was moderate to high heterogeneity among the studies and their components. 511
|
|
19. |
- Hagg, Lovisa, et al.
(author)
-
External Validity of the ARISTOTLE Trial in Real-Life Atrial Fibrillation Patients
- 2014
-
In: Cardiovascular Therapeutics. - : Wiley. - 1755-5914. ; 32:5, s. 214-218
-
Journal article (peer-reviewed)abstract
- ObjectiveOur primary objective was to determine the proportion of patients with atrial fibrillation (AF) eligible for enrollment in a randomized controlled trial for a novel oral anticoagulant, the ARISTOTLE trial. A secondary objective was to describe the reasons for trial ineligibility.MethodsWe performed a cross-sectional study of an unselected population including 2274 patients in Skelleftea, Sweden with at least one verified episode of AF on or before December 31, 2010. Patients were classified as suitable or unsuitable for anticoagulant treatment according to current guidelines. The enrollment criteria from the ARISTOTLE trial were extracted from the original publication and applied to the population.ResultsAmong all patients with AF, 1579 were classified as suitable for anticoagulant treatment. Of these, only 658 patients (42%) were eligible for participation in the ARISTOTLE trial. Among the 921 patients ineligible for participation, 498 did not meet the ECG criteria, 272 had psychosocial problems, and in addition, 78 patients were excluded due to both of these criteria.ConclusionOur study shows that a majority of the patients in an unselected population with AF suitable for anticoagulant treatment were ineligible for participation in the ARISTOTLE trial. The applicability of the ARISTOTLE trial is therefore unknown for a considerable proportion of patients with AF in real life.
|
|
20. |
|
|
21. |
- Högström, Ulf, et al.
(author)
-
Momentum fluxes and wind gradients in the marine boundary layer : a multi platform study
- 2008
-
In: Boreal environment research. - 1239-6095 .- 1797-2469. ; 13:6, s. 475-502
-
Journal article (peer-reviewed)abstract
- During five autumn weeks, measurements of turbulent fluxes were obtained in the Baltic Sea at three levels on a 30-m tower and two levels on an ASIS buoy 4 km from the tower together with profiles of wind and temperature. Wave data and SST were obtained from ASIS. In the mean, momentum fluxes measured on the tower and on ASIS during onshore winds agree closely. Dimensionless wind gradients phi(m)(z/L) for (i) stable conditions are linear in z/L (L is the Obukhov length); (ii) unstable, growing sea conditions are much smaller than predicted by 'standard' equations, due to an indirect effect of the boundary layer height. Individual wind profiles extrapolated from ASIS to tower by integration of phi(m)(z/L) deviate by about 0.5 m s(-1) from measured values, but corresponding mean profiles agree well for all levels from 1.18 m to 30 m. This random variation in the wind field is shown to be related to inherent dynamics of the atmospheric surface layer.
|
|
22. |
- Johansson, Cecilia, et al.
(author)
-
Alcohol consumption and risk of incident atrial fibrillation : a population-based cohort study
- 2020
-
In: European journal of internal medicine. - : Elsevier. - 0953-6205 .- 1879-0828. ; 76, s. 50-57
-
Journal article (peer-reviewed)abstract
- AIMS: Atrial fibrillation (AF) is a common tachyarrhythmia. High alcohol consumption is associated with increased AF risk. It remains unclear whether lower levels of alcohol consumption are also associated with AF risk, and whether the association differs between men and women. In this study, we investigated the association between low to moderate levels of alcohol consumption and AF risk in men and women.METHODS: We performed a population-based cohort study of 109,230 health examination participants in northern Sweden. Data regarding alcohol intake were obtained using a questionnaire administered at the health examination. Incident AF cases were identified from the Swedish National Patient Registry.RESULTS: AF was diagnosed in 5,230 individuals during a total follow-up of 1,484,547 person-years. Among men, AF risk increased over quartiles of weekly alcohol consumption (P for trend 0.001). Men with alcohol consumption in the highest quartile (≥4.83 standard drinks [each drink containing 12 gs of ethanol] per week; SDW) had a HR of 1.21 (95% CI 1.09-1.34) for AF compared to men in the lowest quartile (<0.90 SDW). In men, problem drinking was also associated with an increased AF risk (HR: 1.24; 95% CI: 1.10-1.39). Among women, AF risk was not significantly associated with alcohol consumption (P for trend 0.09 for decreasing risk of AF over quartiles of weekly alcohol consumption) or problem drinking (HR: 1.00; 95% CI 0.70-1.42).CONCLUSION: Self-reported alcohol consumption and problem drinking were associated with an increased risk of AF among men, but not in women.
|
|
23. |
- Johansson, Cecilia, et al.
(author)
-
Characterization of patients with atrial fibrillation not treated with oral anticoagulants
- 2014
-
In: Scandinavian Journal of Primary Health Care. - : Informa Healthcare. - 0281-3432 .- 1502-7724. ; 32:4, s. 226-231
-
Journal article (peer-reviewed)abstract
- Objective: An underuse of oral anticoagulants (OAC) in patients with atrial fibrillation (AF) has been suggested, as only 50% of all patients with AF receive OAC treatment. Whether this is due to contraindications, lack of an indication to treat, or an expression of underuse is sparsely investigated. This study therefore aimed to characterize individuals without OAC treatment in a real-life population of patients with AF. Design: Retrospective cross-sectional study. The medical records were scrutinized in order to identify the type of AF, risk factors for embolism and bleeding, and other factors of importance for OAC treatment. Setting: The municipalities of Skellefteå and Norsjö, northern Sweden. Subjects: A total of 2274 living residents with at least one verified episode of AF on or before December 31, 2010. Main outcome measures: Prevalence of treatment with OAC and documented reasons to withhold OAC treatment. Results: Among all 2274 patients with AF, 1187 (52%) were not treated with OAC. Of the untreated patients, 19% had no indication or had declined or had experienced adverse effects other than bleeding on warfarin treatment. The most common reason to withhold OAC was presence of risk factors for bleeding, found in 38% of all untreated patients. Furthermore, a documented reason could be identified to withhold OAC in 75%. Conclusions: Among patients with AF without OAC treatment a reason could be identifi ed to withhold OAC in 75%. The underuse of OAC is estimated to be 25%.
|
|
24. |
- Johansson, Cecilia, et al.
(author)
-
Diabetes, prediabetes, and atrial fibrillation : a population-based cohort study based on national and regional registers
- 2023
-
In: Journal of Internal Medicine. - : John Wiley & Sons. - 0954-6820 .- 1365-2796. ; 294:5, s. 605-615
-
Journal article (peer-reviewed)abstract
- Background: Previous studies have shown an increased risk for atrial fibrillation and atrial flutter (AF) in people with type 2 diabetes and prediabetes. It is unclear whether this increase in AF risk is independent of other risk factors for AF.Objective: To investigate the association between diabetes and different prediabetic states, as independent risk factors for the onset of AF.Methods: We performed a population-based cohort study in Northern Sweden, including data on fasting plasma glucose, oral glucose tolerance test, major cardiovascular risk factors, medical history, and lifestyle factors. Participants were divided into six groups depending on glycemic status and followed through national registers for AF diagnosis. Cox proportional hazard model was used to assess the association between glycemic status and AF, using normoglycemia as reference.Results: The cohort consisted of 88,889 participants who underwent a total of 139,661 health examinations. In the model adjusted for age and sex, there was a significant association between glycemic status and development of AF in all groups except the impaired glucose tolerance group, with the strongest association for the group with known diabetes (p-value <0.001). In a model adjusted for sex, age, systolic blood pressure, body mass index, antihypertensive drugs, cholesterol, alcohol, smoking, education level, marital status, and physical activity, there was no significant association between glycemic status and AF.Conclusions/interpretation: The association between glycemic status and AF disappears upon adjustment for potential confounders. Diabetes and prediabetes do not appear to be independent risk factors for AF.
|
|
25. |
- Johansson, Cecilia, et al.
(author)
-
Incidence, type of atrial fibrillation and risk factors for stroke : a population-based cohort study
- 2017
-
In: Clinical Epidemiology. - 1179-1349. ; 9, s. 53-62
-
Journal article (peer-reviewed)abstract
- Purpose: The aims of this study were to estimate the incidence of atrial fibrillation and atrial flutter (AF), to assess the presence of provoking factors and risk factors for stroke and systemic embolism, and to determine the type of AF in patients with first-diagnosed AF. Patients and methods: This cohort study was performed in northern Sweden between January 1, 2011 and December 31, 2012. Diagnosis registries were searched for the International Classification of Diseases-10 code for AF (I48) to identify cases of incident AF. All AF diagnoses were electrocardiogram-verified. Data pertaining to provoking factors, type of AF and presence of risk factors for stroke and systemic embolism according to the CHA(2)DS(2)-VASc score were obtained from medical records. Results: The incidence of AF in the entire population was 4.0 per 1,000 person-years. The incidence was 27.5 per 1,000 person-years in patients aged >= 80 years. A total of 21% of all patients had a provoking factor in association with the first-diagnosed episode of AF. The CHA(2)DS(2)-VASc score was 2 or higher in 81% of the patients. Permanent AF was the most common type of AF (29%). Conclusion: There was a considerable increase in the incidence of AF with age, and a provoking factor was found in one-fifth. The most common type of AF was permanent AF. Four in five patients had a CHA(2)DS(2)-VASc score of 2 or more.
|
|
26. |
|
|
27. |
- Johansson, Cecilia, 1988-
(author)
-
Risk markers and incidence of atrial fibrillation in northern Sweden
- 2023
-
Doctoral thesis (other academic/artistic)abstract
- Background: Atrial fibrillation (AF) is the most common clinically significant arrythmia with a prevalence of approximately 3% in the general population. Less is known about the incidence of AF. In order to reduce the incidence of AF, it is of essence to identify modifiable risk factors for the disease.Aims: The aims of this thesis were (1) to estimate the incidence of AF and to assess the prevalence of provoking factors and risk factors for stroke and systemic embolism at the time of AF diagnosis, (2) to study the association between alcohol consumption and risk of AF, (3) to study the association between weight, height, weight change, and risk of AF, and (4) to study the association between normal or high normal blood pressure (BP), compared to optimal BP, and risk of AF.Methods: To determine the incidence of AF and the prevalence of provoking factors and risk factors for stroke and systemic embolism at AF diagnosis, an observational study was performed between January 1, 2011, and December 31, 2012, in the municipalities of Skellefteå and Norsjö, Västerbotten, Sweden. Diagnosis registries were searched for cases of incident AF. All AF diagnoses were verified by electrocardiogram. Data regarding provoking factors, type of AF and presence of risk factors for stroke and systemic embolism (as assessed by the CHA2DS2-VASc score) was obtained from medical records. Incidence was calculated by dividing the number of incident AF cases by the time at risk for the population.The association between alcohol consumption, weight, height, weight change, normal BP, high normal BP, and risk of AF was investigated in a population-based cohort study of participants of the Västerbotten Intervention Programme (VIP). Residents of Västerbotten County aged 30, 40, 50 and 60 years who had participated in the VIP health examinations between January 1, 1988, and September 5, 2014, were included. Individuals who had been diagnosed with AF before participating in the VIP were excluded. Study participants were followed until a diagnosis of AF, death, migration from the study area, or the end of the study on September 5, 2014. Incident AF cases were identified using the Swedish National Patient Registry. The health examinations included measurements of height and weight, systolic BP, diastolic BP, fasting glucose, oral glucose tolerance, and cholesterol. Participants also answered a questionnaire addressing any history of diabetes and myocardial infarction, alcohol use, education level, smoking habits, medications, and physical activity. Optimal BP was defined as BP < 120/80 mm Hg. Normal BP was defined as BP 120–129/80–84 mm Hg. High normal BP was defined as BP 130–139/85–89 mm Hg. Hypertension was defined as BP ≥ 140/90 mm Hg. Cox proportional hazards regression analysis was used to assess the associations between alcohol consumption, weight, height, weight change, normal BP, high normal BP, and risk of AF. These were performed with crude, age-adjusted, and multivariable models adjusted for other cardiovascular risk factors (age, sex, body mass index, hypertension, cholesterol, previous myocardial infarction, diabetes, problem drinking, smoking, education level, and leisure-time physical activity).Results: The incidence of AF was 4.0 cases of AF per 1000 person-years. In approximately one fifth of participants, a provoking factor was present at the first episode of AF. The CHA2DS2-VASc score was 2 or higher in 81% of participants. Permanent AF was the most common type of AF and was seen in about one third of the participants.When studying the association between alcohol consumption and risk of AF, 109,230 health examination participants were included in the study cohort and were followed for 1,484,547 person-years. During the study period, 5230 participants developed incident AF. Men with alcohol consumption in the highest quartile (≥ 4.83 standard drinks weekly) had a hazard ratio (HR) of 1.21 (95% confidence interval [CI] 1.09-1.34) for AF in a multivariable model when compared to men with an alcohol consumption in the lowest quartile (< 0.90 standard drinks weekly). In men, problem drinking was also associated with an increased risk of AF (HR 1.24, 95% CI 1.10–1.39 in a multivariable model). Among women, no significant association between alcohol consumption, problem drinking, and risk of AF was identified.In a fully adjusted model, height, weight, body mass index, and body surface area were positively associated with risk of incident AF. Among participants who underwent two health examinations 10 years apart, 1142 persons developed AF. The mean weight change from baseline was a weight gain of 4.8%. There was no significant association between either weight gain or weight loss and risk of AF.In the study of the association between normal BP, high normal BP, and risk of AF, 109,697 persons with a total of 162,982 health examinations were included. Incident AF was diagnosed in 5260 participants. There was an increased risk of incident AF in persons with normal BP (HR 1.11, 95% CI 1.01–1.27) and in persons with high normal BP (HR 1.23, 95% CI 1.10–1.38) compared to optimal BP in a multivariable model. Systolic BP and diastolic BP were associated with risk of incident AF, with HRs of 1.11 (95% CI 1.10–1.13) and 1.13 (95% CI 1.09–1.16) per 10 mmHg, respectively, in multivariable models. A restricted cubic spline analysis indicated a gradually increasing risk of AF with increasing systolic BP and diastolic BP.Conclusions: AF has an incidence of 4.0 per 1000 person-years. Alcohol consumption and problem drinking were associated with higher risk of AF in men, but not in women. Weight, height, body mass index, and body surface area were associated with increased risk of incident AF. Normal BP and high normal BP, when compared to optimal BP, were associated with increased risk of incident AF.
|
|
28. |
- Johansson, Cecilia, et al.
(author)
-
Weight, height, weight change, and risk of incident atrial fibrillation in middle-aged men and women
- 2020
-
In: Journal of Arrhythmia. - : John Wiley & Sons. - 1880-4276 .- 1883-2148. ; 36:6, s. 974-981
-
Journal article (peer-reviewed)abstract
- Background: Anthropometric factors are reported to be risk factors for atrial fibrillation (AF), but it is unclear whether weight change in mid‐life is associated with AF. We aimed to study the possible associations of weight, height, and weight change with the risk of incident AF in men and women.Methods: Our study cohort included 108 417 persons (51% women) who participated in a population‐based health examination in northern Sweden at 30, 40, 50, or 60 years of age. The health examination included weight and height measurement and collection of data regarding cardiovascular risk factors. Within this cohort, 40 275 participants underwent two health examinations with a 10‐year interval. We identified cases with a first‐ever diagnosis of AF through the Swedish National Patient Registry.Results: During a total follow‐up of 1 469 820 person‐years, 5154 participants developed incident AF. The mean age at inclusion was 46.3 years, and mean age at AF diagnosis was 66.6 years. After adjustment for potential confounders, height, weight, body mass index (BMI), and body surface area (BSA) were positively associated with risk of incident AF in both men and women. Among participants who underwent two health examinations 10 years apart, 1142 persons developed AF. The mean weight change from baseline was a gain of 4.8%. Weight gain or weight loss was not significantly associated with risk of incident AF.Conclusions: Height, weight, BMI, and BSA showed positive associations with risk of incident AF in both men and women. Midlife weight change was not significantly associated with AF risk.
|
|
29. |
|
|
30. |
- Kindstedt, Elin, et al.
(author)
-
Association between marginal jawbone loss and the onset of rheumatoid arhtritis and relationship to plasma levels of RANKL
- 2018
-
In: Arthritis & Rheumatology. - : Wiley-Blackwell. - 2326-5191 .- 2326-5205. ; 70:4, s. 508-515
-
Journal article (peer-reviewed)abstract
- Objective: To investigate whether periodontitis, characterized by marginal jawbone loss, precedes the onset of symptoms of rheumatoid arthritis (RA), and to analyze plasma levels of RANKL (a cytokine that is crucial for bone resorption) and anti–citrullinated peptide antibodies (ACPAs) in presymptomatic individuals compared with matched referent controls.Methods: Marginal jawbone loss was measured on dental radiographs of the premolar/molar regions in the jaws in 176 subjects, 93 of whom subsequently developed RA. Among these participating subjects, 46 had documented radiographs predating symptom onset, and 45 cases could be matched to controls, according to sex, age, and smoking status. Plasma RANKL concentrations were analyzed using enzyme‐linked immunosorbent assay. A receiver operating characteristic curve was used to define the cutoff value for RANKL positivity.Results: Bone loss was significantly greater in presymptomatic subjects classified as never smokers compared with that in controls, and increasing levels of bone loss were associated with a higher risk of the subsequent development of RA (hazard ratio 1.03, 95% confidence interval 1.01–1.05). No association between jawbone loss and RA was observed in smokers. A significantly greater extent of marginal jawbone loss was detected in RANKL‐positive presymptomatic subjects, and even more pronounced jawbone loss was observed in those who were positive for both RANKL and ACPA.Conclusion: Marginal jawbone loss preceded the clinical onset of RA symptoms, but this was observed only in nonsmokers. Moreover, marginal jawbone loss was significantly greater in RANKL‐positive presymptomatic subjects compared with RANKL‐negative presymptomatic subjects and was highest in presymptomatic subjects positive for both ACPA and RANKL.
|
|
31. |
- Kindstedt, Elin, et al.
(author)
-
Marginal jawbone loss is associated with onset of rheumatoid arthritis and is related to plasma level of receptor activator of nuclear factor kappa-B-ligand (RANKL)
-
Other publication (other academic/artistic)abstract
- OBJECTIVES: We investigated whether periodontitis, displayed as marginal jawbone loss, preceded onset of symptoms of RA. Furthermore, we analysed plasma levels of receptor activator of nuclear factor kappa-B (RANKL), a cytokine crucial for bone resorption and of anti-citrullinated peptide antibodies (ACPA) in pre-symptomatic individuals compared with controls.METHODS: Marginal jawbone levels were measured on dental radiographs from the premolar/molar regions of the jaws of 176 subjects of whom 93 had developed RA. Of these, 47 had documented radiographs predating symptom onset and for 45 of them sex, age and smoking status referents could be matched. The plasma RANKL concentrations were analysed using ELISA. The receiver operating characteristic curve was used to define the cut-off value.RESULTS: Compared with matched referents, bone loss was significantly higher in never-smoking, pre-symptomatic subjects and increasing levels of bone loss was associated with higher risk to develop subsequent RA (hazard ratio=1.06, 95%CI 1.01, 1.11). No association was found in smokers. In the pre- symptomatic RANKL-positive individuals a significantly higher extent of marginal jawbone loss, and those who were both RANKL- and ACPA positive displayed an even more pronounced jawbone loss.CONCLUSIONS: Marginal jawbone loss preceded clinical onset of symptoms of RA but the difference was only manifested in non-smokers. Moreover, pre- symptomatic RA-individuals, who were RANKL positive, displayed a significantly higher degree of marginal jawbone loss, particularly in ACPA positive individuals.
|
|
32. |
- Kindstedt, Elin, et al.
(author)
-
Receptor Activator of Nuclear Factor Kappa-B Ligand (RANKL) and Marginal Jawbone Loss Predates the Onset of Rheumatoid Arthritis
- 2017
-
In: Arthritis & Rheumatology. - : Wiley-Blackwell. - 2326-5191 .- 2326-5205. ; 69
-
Journal article (other academic/artistic)abstract
- Background/Purpose: Previous studies have shown a higher incidence of alveolar bone loss in patients with rheumatoid arthritis (RA) and that patients with periodontitis are at a greater risk for developing RA. Periodontitis, displayed as marginal jawbone loss was analysed in individuals prior to symptom onset of RA and related to plasma levels of receptor activator of nuclear factor kappa-B (RANKL), a cytokine crucial for bone resorption. Methods: A case-control study performed within the Medical Biobank of Northern Sweden included 232 pre-symptomatic individuals with blood samples donated before symptom onset and 194 controls. A questionnaire on self-assed dental status and smoking status was retrieved. Dental radiographs to evaluate marginal jawbone levels were available from 93 pre-symptomatic individuals (mean age; 56.8 95%CI55.9, 57.7 years and pre-dating time; -5.3 95%CI -12.2, -0.2, 74.2% females) and 83 controls (mean age; 55.5 95%CI54.6, 56.5, 73.5% females) . Of these individuals 45 had radiograph documentations prior to development of RA symptoms and to whom sex, age and smoking status could be matched among the controls. Plasma were analysed for RANKL (BioVendor, Karasek, Czech Republic), and anti-citrullinated peptide antibodies (ACPA) (anti-CCP2 test, Eurodiagnostics, Sweden) from similar time points. Results: Compared to matched controls, total bone loss was significantly higher in never-smokers who developed RA but not in smokers and increasing levels on total jawbone loss was associated with a significantly higher odds to be diagnosed with RA later (OR=1.06, 95%CI 1.01, 1.11). Regardless of smoking status, the number of unaffected teeth did not differ significantly between those who were subsequently diagnosed with RA and their matched controls. In the pre-symptomatic individuals RANKL positive individuals had significantly higher extent of marginal jawbone loss, which was further increased in ACPA positive individuals. Previously documented association between smoking and ageing and marginal jawbone loss was verified. Conclusion: Marginal jawbone loss preceded onset of symptoms of RA but the difference was only manifested in non-smokers. Moreover, marginal jawbone loss and plasma RANKL levels were related in the pre-symptomatic individuals particularly in ACPA positive individuals.
|
|
33. |
- Nilsson, Cecilia, et al.
(author)
-
High proliferation is associated with inferior Outcome in male breast cancer patients
- 2013
-
In: Modern Pathology. - : Nature Publishing Group. - 0893-3952 .- 1530-0285. ; 26:1, s. 87-94
-
Journal article (peer-reviewed)abstract
- Assessment of proliferation is important in female breast cancer and individual treatment decisions are based upon its results, especially in the lumina! subgroups. Gene expression analyses fail to group male breast cancer into the intrinsic subgroups previously established in female breast cancer. Even though proliferation has been shown to divide male breast cancer into molecular subgroups with different prognoses, the clinical importance of proliferation markers has not yet been elucidated. Previous studies in male breast cancer have demonstrated contradictory results regarding the prognostic impact of histological grade and Ki-67, parameters strongly associated with proliferation. The aim of the present project was to study proliferation in male breast cancer by assessing other proliferation-related markers viz. cyclins A, B, D1 and mitotic count. A total of 197 male breast cancer cases with accessible paraffin-embedded material and outcome data were investigated. Immunohistochemical stainings were performed on tissue microarrays. Kaplan-Meier estimates and the Cox proportional regression models were used for survival analyses with breast cancer death as the event. The subset of patients with high expression of cyclin A (hazard ratio (HR) 3.7; P=0.001) and B (HR 2.7; P=0.02) demonstrated a poorer survival. Furthermore, high mitotic count was associated with an increased risk of breast cancer death (HR 2.5; P=0.01). In contrast, cyclin D1 overexpression was predictive of better breast cancer survival (HR 0.3; P=0.001). In conclusion, high levels of cyclin A and B expression and an elevated mitotic count result in a two to threefold higher risk for breast cancer death, whereas cyclin D1 overexpression halves the risk. The clinical utility of these proliferation markers needs further elucidation. Modern Pathology (2013) 26, 87-94; doi:10.1038/modpathol.2012.145; published online 24 August 2012
|
|
34. |
- Nilsson, Cecilia, et al.
(author)
-
Molecular subtyping of male breast cancer using alternative definitions and its prognostic impact
- 2013
-
In: Acta Oncologica. - : Informa Healthcare. - 0284-186X .- 1651-226X. ; 52:1, s. 102-109
-
Journal article (peer-reviewed)abstract
- Background. Male breast cancer (MBC) is an uncommon disease and there is limited information on the prognostic impact of routinely used clinicopathological parameters. Material and methods. In a retrospective setting, we reviewed 197 MBC patients with accessible paraffin-embedded tumor tissue and clinicopathological data. Immunohistochemical (IHC) stainings were performed on tissue microarrays and histological grading on conventional slides. Cox proportional regression models were applied for uni- and multivariate analyses using breast cancer death as the event. Results. Estrogen receptor (ER) and progesterone receptor positivity were demonstrated in 93% and 77% of patients, respectively. Nottingham histologic grade (NHG) III was seen in 41% and HER2 positivity in 11%. Classification into molecular subtypes using IHC markers according to three alternative definitions revealed luminal A and luminal B in 81% vs. 11%; 48% vs. 44% and 41% vs. 42% of cases. Two cases of basal-like were identified, but no cases of HER2-like. Factors associated with an increased risk of breast cancer death were node positivity (HR 4.5; 95% CI 1.8-11.1), tumor size andgt;20 mm (HR 3.3; 95% CI 1.4-7.9) and ER negativity (HR 10.9; 95% CI 3.2-37.9). No difference in breast cancer death between the luminal subgroups was demonstrated, regardless of definition. Conclusion. MBC tumors were more often of high grade, whereas HER2 overexpression was as frequent as in FBC. Lymph nodes, tumor size and ER status were independent predictors of breast cancer death. The prognostic impact of molecular subtyping in MBC seems to differ from that previously established in FBC.
|
|
35. |
- Olofsson, Cecilia Kjellberg, et al.
(author)
-
A national study of the outcome after treatment of critical aortic stenosis in the neonate.
- 2020
-
In: Cardiology in the young. - 1467-1107. ; 30:9, s. 1321-1327
-
Journal article (peer-reviewed)abstract
- This study describes short-term and long-term outcome after treatment of critical valvular aortic stenosis in neonates in a national cohort, with surgical valvotomy as first choice intervention.All neonates in Sweden treated for critical aortic stenosis between 1994 and 2016 were included. Patient files were analysed and cross-checked against the Swedish National Population Registry as of December 2017, giving complete survival data. Diagnosis was confirmed by reviewing echo studies. Critical aortic stenosis was defined as valvular stenosis with duct-dependent systemic circulation or depressed left ventricular function. Primary outcome was all-cause mortality and secondary outcomes were reintervention and aortic valve replacement.Sixty-one patients were identified (50 boys, 11 girls). Primary treatment was surgical valvotomy in 52 neonates and balloon valvotomy in 6. Median age at initial treatment was 5 days (0-26), and median follow-up time was 10.8 years (0.14-22.6). There was no 30-day mortality but four late deaths. Freedom from reintervention was 66%, 61%, 54%, 49%, and 46% at 1, 5, 10, 15, and 20 years, respectively. Median time to reintervention was 3.4 months (4 days to 17.3 years). Valve replacement was performed in 23 patients (38%).Surgical valvotomy is a safe and reliable treatment in these critically ill neonates, with no 30-day mortality and long-term survival of 93% in this national study. At 10 years of age, reintervention was performed in 54% and at end of follow-up 38% had had an aortic valve replacement.
|
|
36. |
- Olofsson, Cecilia Kjellberg, et al.
(author)
-
Outcomes in neonatal critical and non-critical aortic stenosis: A retrospective cohort study
- 2023
-
In: Archives of Disease in Childhood. - : BMJ. - 0003-9888 .- 1468-2044. ; 108:5, s. 398-404
-
Journal article (peer-reviewed)abstract
- Objective: To compare long-term survival, reinterventions and risk factors using strict definitions of neonatal critical and non-critical valvular aortic stenosis (VAS). Design: A nationwide retrospective study using data from patient files, echocardiograms and the Swedish National Population Registry. Setting and patients: All neonates in Sweden treated for isolated VAS 1994-2018. We applied the following criteria for critical aortic stenosis: valvular stenosis with duct-dependent systemic circulation or depressed left ventricular function (fractional shortening ≤27%). Indication for treatment of non-critical VAS was Doppler mean gradient >50 mm Hg. Main outcome measures: Short-term and long-term survival, aortic valve reinterventions need of valve replacements, risk factors for reintervention and event-free survival. Results: We identified 65 patients with critical VAS and 42 with non-critical VAS. The majority of the neonates were managed by surgical valvotomy. Median follow-up time was 13.5 years, with no patients lost to follow-up. There was no 30-day mortality. Long-term transplant-free survival was 91% in the critical stenosis group and 98% in the non-critical stenosis group (p=0.134). Event-free survival was 40% versus 67% (p=0.002) in the respective groups. Median time from the initial treatment to reintervention was 3.6 months versus 3.9 years, respectively (p=0.008). Conclusions: Critical VAS patients had significantly higher need for reintervention during the first year of life, lower event-free survival and lower freedom from aortic valve replacement at age ≥18 years, compared with neonates with non-critical stenosis.
|
|
37. |
- Omar, Omar, et al.
(author)
-
The stimulation of an osteogenic response by classical monocyte activation.
- 2011
-
In: Biomaterials. - : Elsevier BV. - 1878-5905 .- 0142-9612. ; 32:32, s. 8190-8204
-
Journal article (peer-reviewed)abstract
- The monocyte/macrophage system plays a central role in host defense, wound healing and immune regulation at biomaterial surfaces. Monocytes can be classically and alternatively activated, and can be stimulated differently in response to variations in biomaterial surface properties. In this study, human monocytes, cultured on polystyrene surfaces (Ps), were activated either classically, by lipopolysaccharide (LPS), or alternatively, by interleukin-4 (IL-4). Monocytes were also cultured on anodically oxidized (Ox) and machined (Ma) titanium surfaces, with and without LPS stimulation. Cells were cultured for 1 and 3 days and their conditioned media (CM) were collected. The osteogenic response of hMSCs to the monocyte CM was determined by analyzing the gene expression of key osteogenic markers. The CM from classically activated monocytes increased the hMSCs expression of runt-related transcription factor 2 (Runx2) and alkaline phosphatase (ALP). Furthermore, CM from monocytes cultured on Ox surface resulted in a modest increase of the expression of bone morphogenetic protein-2 (BMP-2). LPS stimulation of the surface-seeded monocytes overwhelmed the effect of the surface properties and resulted in significant upregulation of BMP-2 and Runx2 for all samples. The results show that human monocytes, cultured on different surfaces and/or under different activation pathways, communicate pro-osteogenic signals to hMSCs. The signals involve regulation of autologous BMP-2 in the hMSCs. The classical activation results in profound and prolonged osteogenic effect compared to the effect of the investigated surface properties.
|
|
38. |
- Pascual, Didac, et al.
(author)
-
The missing pieces for better future predictions in subarctic ecosystems: A Torneträsk case study
- 2021
-
In: Ambio. - : Springer. - 0044-7447 .- 1654-7209. ; 50:2, s. 375-392
-
Research review (peer-reviewed)abstract
- Arctic and subarctic ecosystems are experiencing substantial changes in hydrology, vegetation, permafrost conditions, and carbon cycling, in response to climatic change and other anthropogenic drivers, and these changes are likely to continue over this century. The total magnitude of these changes results from multiple interactions among these drivers. Field measurements can address the overall responses to different changing drivers, but are less capable of quantifying the interactions among them. Currently, a comprehensive assessment of the drivers of ecosystem changes, and the magnitude of their direct and indirect impacts on subarctic ecosystems, is missing. The Torneträsk area, in the Swedish subarctic, has an unrivalled history of environmental observation over 100 years, and is one of the most studied sites in the Arctic. In this study, we summarize and rank the drivers of ecosystem change in the Torneträsk area, and propose research priorities identified, by expert assessment, to improve predictions of ecosystem changes. The research priorities identified include understanding impacts on ecosystems brought on by altered frequency and intensity of winter warming events, evapotranspiration rates, rainfall, duration of snow cover and lake-ice, changed soil moisture, and droughts. This case study can help us understand the ongoing ecosystem changes occurring in the Torneträsk area, and contribute to improve predictions of future ecosystem changes at a larger scale. This understanding will provide the basis for the future mitigation and adaptation plans needed in a changing climate.
|
|
39. |
- Pomp, S, et al.
(author)
-
The new Uppsala neutron beam facility
- 2005
-
In: Proc. of the Int. conf. on Nuclear Data for Sceince and Technology: Santa Fé, New Mexico, USA, September 26-October 1, 2004. ; , s. 780-
-
Conference paper (peer-reviewed)
|
|
40. |
- Östlind, Niclas, 1966, et al.
(author)
-
Moment 3: Fotografi och film i vetenskapens tjänst
- 2023
-
In: Göteborg, Naturhistoriska museet, 23 november 2023.
-
Artistic work (other academic/artistic)abstract
- Ett tvärvetenskapligt symposium om hur film och fotografi har använts och används inom vetenskaper som medicin, botanik, zoologi och etnologi, betraktat ur konstnärliga, curatoriella och arkiviska praktiker och perspektiv.
|
|
41. |
- Abelson, Anna-Karin, et al.
(author)
-
No evidence of association between genetic variants of the PDCD1 ligands and SLE
- 2007
-
In: Genes and Immunity. - : Springer Science and Business Media LLC. - 1466-4879 .- 1476-5470. ; 8:1, s. 69-74
-
Journal article (peer-reviewed)abstract
- PDCD1, an immunoreceptor involved in peripheral tolerance has previously been shown to be genetically associated with systemic lupus erythematosus (SLE). PDCD1 has two ligands whose genes are located in close proximity on chromosome 9p24. Our attention was drawn to these ligands after finding suggestive linkage to a marker (gata62f03, Z=2.27) located close to their genes in a genome scan of Icelandic families multiplex for SLE. Here, we analyse Swedish trios (N=149) for 23 single nucleotide polymorphisms (SNPs) within the genes of the PDCD1 ligands. Initially, indication of association to eight SNPs was observed, and these SNPs were therefore also analysed in Mexican trios (N=90), as well as independent sets of patients and controls from Sweden (152 patients, 448 controls) and Argentina (288 patients, 288 controls). We do not find support for genetic association to SLE. This is the first genetic study of SLE and the PDCD1 ligands and the lack of association in several cohorts implies that these genes are not major risk factors for SLE.
|
|
42. |
|
|
43. |
- Abrahams, Harriët J. G., et al.
(author)
-
Moderators of the effect of psychosocial interventions on fatigue in women with breast cancer and men with prostate cancer : Individual patient data meta-analyses
- 2020
-
In: Psycho-Oncology. - : Wiley. - 1057-9249 .- 1099-1611. ; 29:11, s. 1772-1785
-
Research review (peer-reviewed)abstract
- ObjectivePsychosocial interventions can reduce cancer‐related fatigue effectively. However, it is still unclear if intervention effects differ across subgroups of patients. These meta‐analyses aimed at evaluating moderator effects of (a) sociodemographic characteristics, (b) clinical characteristics, (c) baseline levels of fatigue and other symptoms, and (d) intervention‐related characteristics on the effect of psychosocial interventions on cancer‐related fatigue in patients with non‐metastatic breast and prostate cancer.MethodsData were retrieved from the Predicting OptimaL cAncer RehabIlitation and Supportive care (POLARIS) consortium. Potential moderators were studied with meta‐analyses of pooled individual patient data from 14 randomized controlled trials through linear mixed‐effects models with interaction tests. The analyses were conducted separately in patients with breast (n = 1091) and prostate cancer (n = 1008).ResultsStatistically significant, small overall effects of psychosocial interventions on fatigue were found (breast cancer: β = −0.19 [95% confidence interval (95%CI) = −0.30; −0.08]; prostate cancer: β = −0.11 [95%CI = −0.21; −0.00]). In both patient groups, intervention effects did not differ significantly by sociodemographic or clinical characteristics, nor by baseline levels of fatigue or pain. For intervention‐related moderators (only tested among women with breast cancer), statistically significant larger effects were found for cognitive behavioral therapy as intervention strategy (β = −0.27 [95%CI = −0.40; −0.15]), fatigue‐specific interventions (β = −0.48 [95%CI = −0.79; −0.18]), and interventions that only targeted patients with clinically relevant fatigue (β = −0.85 [95%CI = −1.40; −0.30]).ConclusionsOur findings did not provide evidence that any selected demographic or clinical characteristic, or baseline levels of fatigue or pain, moderated effects of psychosocial interventions on fatigue. A specific focus on decreasing fatigue seems beneficial for patients with breast cancer with clinically relevant fatigue.
|
|
44. |
|
|
45. |
- Adolfsson, Annsofie, et al.
(author)
-
Swedish Women's Emotional Experience of the First Trimester in a New Pregnancy after One or More Miscarriages : A Qualitative Interview Study
- 2012
-
In: Advances in Sexual Medicine. - : Scientific Research Publishing. - 2164-5191 .- 2164-5205. ; 2:3, s. 38-45
-
Journal article (peer-reviewed)abstract
- Objectives: The aim of this study was to evaluate how Swedish women describe their emotional state of being during the eighth week through the eleventh week after they have become pregnant again after suffering a previous miscarriage. Method: A qualitative content analysis with an inductive approach has been used to analyze fourteen interviews that served as the data base for this study. The content analysis resulted in the development of five categories which evolved into one primary theme. Findings: The five categories identified were Worry and preoccupation; Distance; managing their feelings; Mourning what is lost; Guarded happiness and expectations. These categories were compiled into a main theme, “Worry consumes a lot of energy, but on the other side lies happiness”. This theme focused on whether the women could feel any happiness about being pregnant again despite their concerns with the previous miscarriage. Conclusions: The emotional states of the women when they get pregnant again are typically characterized by anxiety, worry and concerns about their current pregnancy. The women have a tendency to distance themselves emotionally from their pregnancy but also strive to find the joy of being pregnant again. During the new pregnancy they find themselves in need of support from their family and friends as well as in need of support from the healthcare system.
|
|
46. |
- Ahl, Matilda, et al.
(author)
-
Immune response in the eye following epileptic seizures
- 2016
-
In: Journal of Neuroinflammation. - : Springer Science and Business Media LLC. - 1742-2094. ; 13:1
-
Journal article (peer-reviewed)abstract
- Background: Epileptic seizures are associated with an immune response in the brain. However, it is not known whether it can extend to remote areas of the brain, such as the eyes. Hence, we investigated whether epileptic seizures induce inflammation in the retina. Methods: Adult rats underwent electrically induced temporal status epilepticus, and the eyes were studied 6 h, 1, and 7 weeks later with biochemical and immunohistochemical analyses. An additional group of animals received CX3CR1 antibody intracerebroventricularly for 6 weeks after status epilepticus. Results: Biochemical analyses and immunohistochemistry revealed no increased cell death and unaltered expression of several immune-related cytokines and chemokines as well as no microglial activation, 6 h post-status epilepticus compared to non-stimulated controls. At 1 week, again, retinal cytoarchitecture appeared normal and there was no cell death or micro- or macroglial reaction, apart from a small decrease in interleukin-10. However, at 7 weeks, even if the cytoarchitecture remained normal and no ongoing cell death was detected, the numbers of microglia were increased ipsi- and contralateral to the epileptic focus. The microglia remained within the synaptic layers but often in clusters and with more processes extending into the outer nuclear layer. Morphological analyses revealed a decrease in surveying and an increase in activated microglia. In addition, increased levels of the chemokine KC/GRO and cytokine interleukin-1β were found. Furthermore, macroglial activation was noted in the inner retina. No alterations in numbers of phagocytic cells, infiltrating macrophages, or vascular pericytes were observed. Post-synaptic density-95 cluster intensity was reduced in the outer nuclear layer, reflecting seizure-induced synaptic changes without disrupted cytoarchitecture in areas with increased microglial activation. The retinal gliosis was decreased by a CX3CR1 immune modulation known to reduce gliosis within epileptic foci, suggesting a common immunological reaction. Conclusions: Our results are the first evidence that epileptic seizures induce an immune response in the retina. It has a potential to become a novel non-invasive tool for detecting brain inflammation through the eyes.
|
|
47. |
- Ahlberg, Mats Steinholtz, et al.
(author)
-
PCASTt/SPCG-17-A randomised trial of active surveillance in prostate cancer: Rationale and design
- 2019
-
In: BMJ Open. - : BMJ. - 2044-6055. ; 9
-
Journal article (peer-reviewed)abstract
- Introduction Overtreatment of localised prostate cancer is substantial despite increased use of active surveillance. No randomised trials help define how to monitor patients or when to initiate treatment with curative intent. Methods and analysis A randomised, multicentre, intervention trial designed to evaluate the safety of an MRI-based active surveillance protocol, with standardised triggers for repeated biopsies and radical treatment. The aim is to reduce overtreatment of prostate cancer. 2000 men will be randomly allocated to either surveillance according to current practice or to standardised triggers at centres in Sweden, Norway, Finland and the UK. Men diagnosed in the past 12 months with prostate cancer, ≤T2a, prostate-specific antigen (PSA) <15 ng/mL, PSA density ≤0.2 ng/mL/cc, any International Society of Urological Pathology (ISUP) grade 1 are eligible. Men with ISUP grade 2 in <30% of cores on systematic biopsy and <10 mm cancer in one core on systematic or targeted biopsy are also eligible. Men diagnosed on systematic biopsy should have an MRI and targeted biopsies against Prostate Imaging and Reporting Data System V.2 3-5 lesions before inclusion. Identical follow-up in the two study arms: biannual PSA testing, yearly clinical examination and MRI every second year. In the experimental arm, standardised triggers based on MRI and PSA density elicit repeated biopsies. MRI and histopathological progression trigger radical treatment. Primary outcome measure is progression-free survival. Secondary outcome measures are cumulative incidence of metastatic disease, treatments with curative intent, pT3-4 at radical prostatectomy, switch to watchful waiting, prostate cancer mortality and quality of life. Inclusion started in October 2016 and in October 2018; 275 patients have been enrolled. Ethics and dissemination Ethical approval was obtained in each participating country. Results for the primary and secondary outcome measures will be submitted for publication in peer-reviewed journals. Trial registration number NCT02914873.
|
|
48. |
- Al Adwani, Salma, et al.
(author)
-
Citrullination Alters the Antibacterial and Anti-Inflammatory Functions of the Host Defense Peptide Canine Cathelicidin K9CATH In Vitro
- 2021
-
In: Journal of Immunology. - : The American Association of Immunologists. - 0022-1767 .- 1550-6606. ; 207:3, s. 974-984
-
Journal article (peer-reviewed)abstract
- K9CATH is the sole cathelicidin in canines (dogs) and exhibits broad antimicrobial activity against both Gram-positive and Gram-negative bacteria. K9CATH also modulates inflammatory responses and binds to LPS. These activities depend on the secondary structure and a net-positive charge of the peptide. Peptidylarginine deiminases (PAD) convert cationic peptidyl arginine to neutral citrulline. Thus, we hypothesized that citrullination is a biologically relevant modification of the peptide that would reduce the antibacterial and LPS-binding activities of K9CATH. Recombinant PAD2 and PAD4 citrullinated K9CATH to various extents and circular dichroism spectroscopy revealed that both native and citrullinated K9CATH exhibited similar α-helical secondary structures. Notably, citrullination of K9CATH reduced its bactericidal activity, abolished its ability to permeabilize the membrane of Gram-negative bacteria and reduced the hemolytic capacity. Electron microscopy showed that citrullinated K9CATH did not cause any morphological changes of Gram-negative bacteria, whereas the native peptide caused clear alterations of membrane integrity, concordant with a rapid bactericidal effect. Finally, citrullination of K9CATH impaired its capacity to inhibit LPS-mediated release of proinflammatory molecules from mouse and canine macrophages. In conclusion, citrullination attenuates the antibacterial and the LPS-binding properties of K9CATH, demonstrating the importance of a net positive charge for antibacterial lysis of bacteria and LPS-binding effects and suggests that citrullination is a means to regulate cathelicidin activities.
|
|
49. |
- Al-Minawi, Ali Z., et al.
(author)
-
The ERCC1/XPF endonuclease is required for completion of homologous recombination at DNA replication forks stalled by inter-strand cross-links
- 2009
-
In: Nucleic Acids Research. - : Oxford University Press (OUP). - 0305-1048 .- 1362-4962. ; 37:19, s. 6400-6413
-
Journal article (peer-reviewed)abstract
- Both the ERCC1-XPF complex and the proteins involved in homoIogous recombination (HR) have critical roles in inter-strand cross-link (ICL) repair. Here, we report that mitomycin C-induced lesions inhibit replication fork elongation. Furthermore, mitomycin C-induced DNA double-strand breaks (DSBs) are the result of the collapse of ICL-stalled replication forks. These are not formed through replication run off, as we show that mitomycin C or cisplatin-induced DNA lesions are not incised by global genome nucleotide excision repair (GGR). We also suggest that ICL-lesion repair is initiated either by replication or transcription, as the GGR does not incise ICL-lesions. Furthermore, we report that RAD51 foci are induced by cisplatin or mitomycin C independently of ERCC1, but that mitomycin C-induced HR measured in a reporter construct is impaired in ERCC1-defective cells. These data suggest that ERCC1-XPF plays a role in completion of HR in ICL repair. We also find no additional sensitivity to cisplatin by siRNA co-depletion of XRCC3 and ERCC1, showing that the two proteins act on the same pathway to promote survival.
|
|
50. |
- Alatalo, Tarja, et al.
(author)
-
Språk-, läs- och skrivutvecklande undervisning i matematik, teknik och svenska i förskoleklass – möjligheter och utmaningar. Symposium.
- 2024
-
Conference paper (peer-reviewed)abstract
- Forskningsämne: Läs- och skrivdidaktikForskare: Tarja Alatalo, Högskolan Dalarna, Annie-Maj Johansson, Högskolan Dalarna, Cecilia Wijnbladh, Högskolan Dalarna, Sari Vuorenpää, Stockholms universitetI detta forskningsprojekt studeras läs- och skrivutvecklande undervisning i olika ämnesområden i svensk förskoleklass (6-åriga elever). I tidigare genomförda observationsstudier av undervisning i ämnesområdena teknik och naturvetenskap i förskoleklass framkom att där skapades undervisning som stödjer elevers läs- och skrivutveckling genom språkanvändning i sociala och utforskande praktiker (Alatalo & Johansson, 2019, 2022). Eftersom tidig läs- och skrivstimulans i social interaktion i funktionella sammanhang främjar elevers läs- och skrivutveckling (Gillen & Hall 2013), går vi vidare på en bredare front för att undersöka hur undervisningen ser ut inom fler ämnesområden i förskoleklassen. Eleverna behöver ges rika möjligheter att göra språkliga upptäckter, både själva och tillsammans med andra och i såväl det talade som det skrivna språket, för att de ska förstå språkets meningsbärande funktion och syftet med att läsa och skriva (Guo et al., 2012). Läs- och skrivutveckling betraktas med utgångspunkt i “The simple view of reading”, där ordavkodning och förståelse är avgörande faktorer för läsutvecklingen (Gough & Tunmer, 1986). Det innebär att kodfokuserade praktiker med fokus på fonologisk medvetenhet och ordavkodning och meningsfokuserade praktiker med fokus på t.ex. ordförrådsutveckling i meningsfulla sammanhang, främjar elevers läs- och skrivutveckling (jfr. Bradley & Bryant, 1983; Pearson et al., 2007; Ruotsalainen et al., 2021). Projektet, där lektioner videoobserverats i 42 olika skolor och intervjuer genomförts med 52 lärare i de aktuella klasserna, har som syfte att bidra med kunskap om hur läs- och skrivutvecklande undervisning tar sig uttryck i förskoleklassens didaktiska verksamhet, men också att identifiera potential att utveckla läs- och skrivundervisningen. Utifrån projektets syfte och design är det möjligt att utveckla en bred kunskapsbas om tidig läs- och skrivundervisning, vilket är angeläget eftersom en språkstimulerande skolförberedande didaktisk verksamhet också kan medverka till att minska antalet elever som misslyckas med sin läs- och skrivutveckling i skolans tidiga år (Lundberg et al., 2012). I detta symposium presenteras preliminära resultat från fyra delstudier i projektet. Den första presentationen diskuterar hur dialogisk matematikundervisning med utgångspunkt i ämnesbegrepp möjliggör för elever att medverka i meningsfokuserade och kodfokuserade läs- och skrivpraktiker. Studien indikerar att matematiklektionerna stödjer elevernas läs- och skrivutveckling, vilket innebär att matematikundervisningen kan uppfattas som språk-, läs- och skrivundervisning. Den andra presentationen synliggör hur elevers medverkan i teknikundervisning skapar förutsättningar för dem att utveckla sin förmåga att kommunicera i tal och skrift i olika sammanhang. Det indikerar att teknikundervisningen har potential att medverka till rika språkupplevelse för elever i förskoleklass.Den tredje presentationen behandlar lärares uppfattning av möjligheter att följa och främja elevers språk-, läs- och skrivutveckling i förskoleklass. Studien bidrar också med att utveckla teori om hur språk-, läs- och skrivundervisningen i tidiga skolår kan differentieras för en mer likvärdig utbildning. Den fjärde presentationen synliggör komplexiteten i lärares uppdrag att stötta och leda varje elevs språk-, läs-, och skrivutveckling utifrån elevens förutsättningar, förmågor och behov. Alla elevers behov av rika möjligheter att göra språkliga upptäckter för att stärka språk-, läs- och skrivutvecklingen problematiseras. Projektet är finansierat av Vetenskapsrådet, 2020-03954ReferenserAlatalo, T. & Johansson, A.-M. (2022). ”Nu läser vi grodans dagbok”: Läs- och skrivutvecklande praktiker i naturvetenskapsundervisning i förskoleklass. Pedagogisk Forskning i Sverige, 27(2), 96–118. https://doi.org/10.15626/pfs27.02.05Alatalo, T. & Johansson, A.-M. (2019). ”Kan man köra en skottkärra med fyrkantigt hjul?” Läs- och skrivutveckling i teknikundervisning i förskoleklass. Nordic Journal of Literacy Research 5(3), 49–62. https://doi.org/10.23865/njlr.v5.2018Bradley, L., & Bryant, P. (1983). Categorizing sounds and learning to read – a causal con-nection. Nature, 301, 419-421. Gillen, J. & Hall, N. (2003). The emergence of early childhood literacy. I N. Hall, J. Larson & J Marsh. (Eds.). Handbook of Early Childhood Literacy (pp. 1–12). Sage Publications.Gough, P. B., & Tunmer, W. E. (1986). Decoding, Reading, and Reading Disability [Academic Journal Electronic Resource]. Remedial and Special Education (RASE), 7(1), 6–10. Guo, Y., Justice, L. M., Kaderavek, J.N. and McGinty, A. (2012). The literacy environment of preschool classrooms: contributions to children’s emergent literacy growth. Journal of Research in Reading 35(3) 308–327. Lundberg, I., Larsman, P., & Strid, A. (2012). Development of phonological awareness dur-ing the preschool year: The influence of gender and socio-economic status. Reading and Writing: An Interdisciplinary Journal, 25(2), 305–320.Pearson, P. D., Hiebert, E. H. & Kamil, M. L. (2007). Vocabulary assessment: What we know and what we need to learn. Reading Research Quarterly, 42, (2), 282–296. Matematikundervisning är även språk-, läs- och skrivundervisning Tarja AlataloDenna delstudie syftar till att utveckla kunskap om läs- och skrivutvecklande didaktik i matematikundervisningen i förskoleklass. Undervisning med fokus på ämnesspråkliga perspektiv (content area literacy), det vill säga undervisning som främjar elevers förmåga att lyssna, tala, läsa, skriva och se för att få information inom ett specifikt ämnesområde (Vacca & Vacca, 2002), stödjer elevers läs- och skrivutveckling (Moss, 2005). Förmågan att använda och förstå talat språk har visats vara en av de tidigaste prediktorerna för en god läsutveckling (National Early Literacy Panel, 2008). Därför är en undervisning som stimulerar unga elever till språklig interaktion och där läraren engagerar eleverna i en innehållsrik och målinriktad undervisning gynnsam för förmågor och färdigheter som är förknippade med elevernas senare läsframgång (Lonigan, 2015). Sådan undervisning förstås i denna studie som dialogisk (Alexander, 2018; Kim & Wilkinson, 2019). Videoobservationer av matematikundervisning genomfördes i 14 olika klassrum i förskoleklass. Materialet transkriberades och analyserades med hjälp av Alexanders (2018) definition av dialogisk undervisning. Begreppen meningsfokuserade och kodfokuserade praktiker (Ruotsalainen et al., 2021) användes till att förstå och synliggöra vilka läs- och skrivutvecklande möjligheter matematikundervisningen erbjuder eleverna. Analyserna pekar på att lärarna går igenom de matematiska begreppen i dialogisk undervisning samtidigt som de växlar, till viss del, mellan meningsfokuserade och kodfokuserade praktiker. Eleverna ges rika möjligheter att lära sig matematiska termer och begrepp i social interaktion och i meningsfulla sammanhang genom dialogisk undervisning under matematiklektionerna. Eleverna blir också involverade i att läsa och skriva välbekanta ord och symboler samt möter skrift och ges möjlighet att se och samtala om skriven text, vilket främjar deras avkodningsförmåga och förståelse för skrift. Referenser Alexander, R. (2018). Developing dialogic teaching: genesis, process, trial. Research Paper in Education, 33(5), 561–598.Alexander, R. J. (2017). Towards dialogic teaching: Rethinking classroom talk (5th ed.). UK: Dialogos. Kim, M-Y., Wilkinson, I., A.G. (2019). What is dialogic teaching? Constructing, deconstructing, and reconstructing a pedagogy of classroom talk. Learning, Culture and Social Interaction, 21, 70–86. https://doi.org/10.1016/j.lcsi.2019.02.003. Lonigan, C. J. (2015). Literacy development. In R. M. Lerner, L. S. Liben, & U. Mueller (Eds.), Handbook of child psychology and developmental science, cognitive processes, (Vol. 2, pp. 763–805). John Wiley & Sons. Moss, B. (2005). Making a case and a place for effective content area literacy instruction in the elementary grades. Reading Teacher, 59(1), 46–55.National Early Literacy Panel. (2008). Developing early literacy: Report of the National Early Literacy Panel. National Institute for Literacy. https://lincs.ed.gov/publications/pdf/NELPReport09.pdfRuotsalainen, J., Pakarinen, E., Poikkeus, A-M., & Lerkkanen, M-K. (2022). Literacy instruction in first grade: Classroom-level associations between reading skills and literacy instruction activities. Journal of Research in Reading 45(1), 83–99.Vacca, R. T., & Vacca, J. L. (2002). Content area reading (7th ed.). Allyn & Bacon. Teknikundervisningen möjliggör för elever att utveckla sin förmåga att kommunicera i tal och skrift för olika syftenAnnie-Maj Johansson Tidigare studier visar att integrering mellan skolämnen och praktiker som stödjer elevers språk-, läs- och skrivutveckling har positiv betydelse för elevers lärande (Neuman et al., 2019). Den svenska läroplanen (Skolverket, 2019) uttrycker att elever i förskoleklass ska ges förutsättningar att utveckla sin förmåga att ”kommunicera i tal och skrift i olika sammanhang och för skilda syften”. Det innebär att den pedagogiska verksamheten ska skapa tillfällen och möjligheter för eleverna att utveckla sin förmåga att kommunicera i tal och skrift. Syftet med den här delstudien är att få kunskap om hur elevers medverkan i förskoleklassens teknikundervisning skapar förutsättningar för eleverna att utveckla sin förmåga att kommunicera i tal och skrift f
|
|