| 1. |
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| 2. |
- Lindberg, Jenny, et al.
(författare)
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Professionen tar form : teknik och genus i fokus
- 2012
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Ingår i: Styra eller stödja: Svensk folkbibliotekspolitik under hundra år. - : Högskolan i Borås. - 9789197876810 ; , s. 217-270
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Förutsättningarna för folkbibliotekariers yrkesutövning har genomgått omvälvande förändringar under 1900-talet och det unga 2000-talet. I antologins inledande kapitel beskrivs de politiska processer som haft direkt inflytande över folkbiblioteket som samhällelig institution i Sverige (Frenander, kap.1 denna volym), och utifrån den historieskrivningen är det lätt att inse att det inte bara är biblioteket som förändrats, utan även bibliotekarieprofessionen. Generellt kan vi se en successiv förstärkning av yrkesgruppens professionella strukturer, bland annat genom att yrkesorganisationer har upprättats37, utbildningen har formaliserats och gjorts mer teoretisk (se Seldén, denna volym) och tidskriften Biblioteksbladet är, sedan dess grundande 1916, fortfarande ett givet forum för det professionella samtalet.
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| 3. |
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| 4. |
- Svensson, Per-Arne, 1969, et al.
(författare)
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Characterization of Brown Adipose Tissue in the Human Perirenal Depot
- 2014
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Ingår i: Obesity. - : Wiley. - 1930-7381 .- 1930-739X. ; 22:8, s. 1830-1837
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Tidskriftsartikel (refereegranskat)abstract
- ObjectiveTo characterize brown adipose tissue (BAT) in the human perirenal adipose tissue depot. MethodPerirenal adipose tissue biopsies were obtained from 55 healthy kidney donors. Expression analysis was performed using microarray, real-time PCR, immunoblotting and immunohistochemistry. Additional studies using human stem cells were performed. ResultsUCP1 gene expression analysis revealed a large intra-individual variation in the perirenal adipose tissue biopsies. Both multi- and unilocular UCP1-positive adipocytes were detected in several of the adipose tissue samples analyzed by immunohistochemical staining. Microarray analysis identified 54 genes that were overexpressed in UCP1-positive perirenal adipose tissue. Real-time PCR analysis of BAT candidate genes revealed a set of genes that were highly correlated to UCP1 and a set of three transcription factor genes (PRDM16, PGC1, and RXR) that were highly correlated to each other. RXR displayed nuclear immunoreactivity in brown adipocytes and an increased gene expression during brown adipogenesis in human stem cells. ConclusionOur data provides the first molecular characterization of BAT in the perirenal adipose tissue depot. Furthermore, it highlights the transcription factor RXR as a new player in BAT development.
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| 5. |
- Torén, Kjell, 1952, et al.
(författare)
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The ratio FEV1/FVC and its association to respiratory symptoms-A Swedish general population study
- 2021
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Ingår i: Clinical Physiology and Functional Imaging. - : Wiley. - 1475-0961 .- 1475-097X. ; 41:2, s. 181-191
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Tidskriftsartikel (refereegranskat)abstract
- Chronic airflow limitation (CAL) can be defined as fixed ratio of forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) any respiratory symptom. In a cross-sectional general population study, 15,128 adults (50-64 years of age), 7,120 never-smokers and 8,008 ever-smokers completed a respiratory questionnaire and performed FEV1 and FVC after bronchodilation. We calculated different ratios of FEV1/FVC from 0.40 to 1.0 using 0.70 as reference category. We analysed odds ratios (OR) between different ratios and any respiratory symptom using adjusted multivariable logistic regression. Among all subjects, regardless of smoking habits, the lowest odds for any respiratory symptom was at FEV1/FVC = 0.82, OR 0.48 (95% CI 0.41-0.56). Among never-smokers, the lowest odds for any respiratory symptom was at FEV1/FVC = 0.81, OR 0.53 (95% CI 0.41-0.70). Among ever-smokers, the odds for any respiratory symptom was lowest at FEV1/FVC = 0.81, OR 0.43 (95% CI 0.16-1.19), although the rate of inclining in odds was small in the upper part, that is FEV1/FVC = 0.85 showed similar odds, OR 0.45 (95% CI 0.38-0.55). We concluded that the odds for any respiratory symptoms continuously decreased with higher FEV1/FVC ratios and reached a minimum around 0.80-0.85, with similar results among never-smokers. These results indicate that the optimal threshold associated with respiratory symptoms may be higher than 0.70 and this should be further investigated in prospective longitudinal studies.
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| 6. |
- Toren, Kjell, et al.
(författare)
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Vital capacity and COPD : the Swedish CArdioPulmonary bioImage Study (SCAPIS)
- 2016
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Ingår i: The International Journal of Chronic Obstructive Pulmonary Disease. - : DOVE MEDICAL PRESS LTD. - 1176-9106 .- 1178-2005. ; 11, s. 927-933
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Tidskriftsartikel (refereegranskat)abstract
- Background: Spirometric diagnosis of chronic obstructive pulmonary disease (COPD) is based on the ratio of forced expiratory volume in 1 second (FEV1)/vital capacity (VC), either as a fixed value <0.7 or below the lower limit of normal (LLN). Forced vital capacity (FVC) is a proxy for VC. The first aim was to compare the use of FVC and VC, assessed as the highest value of FVC or slow vital capacity (SVC), when assessing the FEV1/VC ratio in a general population setting. The second aim was to evaluate the characteristics of subjects with COPD who obtained a higher SVC than FVC. Methods: Subjects (n=1,050) aged 50-64 years were investigated with FEV1, FVC, and SVC after bronchodilation. Global Initiative for Chronic Obstructive Lung Disease (GOLD) COPDFVC was defined as FEV1/FVC <0.7, GOLDCOPD(VC) as FEV1/VC <0.7 using the maximum value of FVC or SVC, LLNCOPDFVC as FEV1/FVC below the LLN, and LLNCOPDVC as FEV1/VC below the LLN using the maximum value of FVC or SVC. Results: Prevalence of GOLDCOPD(FVC) was 10.0% (95% confidence interval [CI] 8.2-12.0) and the prevalence of LLNCOPDFVC was 9.5% (95% CI 7.8-11.4). When estimates were based on VC, the prevalence became higher; 16.4% (95% CI 14.3-18.9) and 15.6% (95% CI 13.5-17.9) for GOLDCOPD(VC) and LLNCOPDVC, respectively. The group of additional subjects classified as having COPD based on VC, had lower FEV1, more wheeze and higher residual volume compared to subjects without any COPD. Conclusion: The prevalence of COPD was significantly higher when the ratio FEV1/VC was calculated using the highest value of SVC or FVC compared with using FVC only. Subjects classified as having COPD when using the VC concept were more obstructive and with indications of air trapping. Hence, the use of only FVC when assessing airflow limitation may result in a considerable under diagnosis of subjects with mild COPD.
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| 7. |
- Torén, Kjell, 1952, et al.
(författare)
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Vital capacity and COPD: the Swedish CArdioPulmonary bioImage Study (SCAPIS)
- 2016
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Ingår i: International Journal of Chronic Obstructive Pulmonary Disease. - : Informa UK Limited. - 1178-2005. ; 11:1, s. 927-933
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Tidskriftsartikel (refereegranskat)abstract
- Background: Spirometric diagnosis of chronic obstructive pulmonary disease (COPD) is based on the ratio of forced expiratory volume in 1 second (FEV1)/vital capacity (VC), either as a fixed value <0.7 or below the lower limit of normal (LLN). Forced vital capacity (FVC) is a proxy for VC. The first aim was to compare the use of FVC and VC, assessed as the highest value of FVC or slow vital capacity (SVC), when assessing the FEV1/VC ratio in a general population setting. The second aim was to evaluate the characteristics of subjects with COPD who obtained a higher SVC than FVC. Methods: Subjects (n=1,050) aged 50-64 years were investigated with FEV1, FVC, and SVC after bronchodilation. Global Initiative for Chronic Obstructive Lung Disease (GOLD) COPDFVC was defined as FEV1/FVC <0.7, GOLDCOPD(VC) as FEV1/VC <0.7 using the maximum value of FVC or SVC, LLNCOPDFVC as FEV1/FVC below the LLN, and LLNCOPDVC as FEV1/VC below the LLN using the maximum value of FVC or SVC. Results: Prevalence of GOLDCOPD(FVC) was 10.0% (95% confidence interval [CI] 8.2-12.0) and the prevalence of LLNCOPDFVC was 9.5% (95% CI 7.8-11.4). When estimates were based on VC, the prevalence became higher; 16.4% (95% CI 14.3-18.9) and 15.6% (95% CI 13.5-17.9) for GOLDCOPD(VC) and LLNCOPDVC, respectively. The group of additional subjects classified as having COPD based on VC, had lower FEV1, more wheeze and higher residual volume compared to subjects without any COPD. Conclusion: The prevalence of COPD was significantly higher when the ratio FEV1/VC was calculated using the highest value of SVC or FVC compared with using FVC only. Subjects classified as having COPD when using the VC concept were more obstructive and with indications of air trapping. Hence, the use of only FVC when assessing airflow limitation may result in a considerable under diagnosis of subjects with mild COPD.
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| 8. |
- Wallin, Jeanette, et al.
(författare)
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Discrepancy in responses to the surprise question between hemodialysis nurses and physicians, with focus on patient clinical characteristics : A comparative study
- 2023
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Ingår i: Hemodialysis International. - : John Wiley & Sons. - 1492-7535 .- 1542-4758. ; 27:4, s. 454-464
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: The surprise question (SQ) "Would I be surprised if this patient died within the next xx months" can be used by different professions to foresee the need of serious illness conversations in patients approaching end of life. However, little is known about the different perspectives of nurses and physicians in responses to the SQ and factors influencing their appraisals. The aim was to explore nurses' and physicians' responses to the SQ regarding patients on hemodialysis, and to investigate how these answers were associated with patient clinical characteristics. Methods: This comparative cross-sectional study included 361 patients for whom 112 nurses and 15 physicians responded to the SQ regarding 6 and 12 months. Patient characteristics, performance status, and comorbidities were obtained. Cohen's kappa was used to analyze the interrater agreement between nurses and physicians in their responses to the SQ and multivariable logistic regression was applied to reveal the independent association to patient clinical characteristics. Findings: Proportions of nurses and physicians responding to the SQ with "no, not surprised" was similar regarding 6 and 12 months. However, there was a substantial difference concerning which specific patient the nurses and physicians responded "no, not surprised", within 6 (kappa = 0.366, p < 0.001, 95% CI = 0.288-0.474) and 12 months (kappa = 0.379, p < 0.001, 95% CI = 0.281-0.477). There were also differences in the patient clinical characteristics associated with nurses' and physicians' responses to the SQ. Discussion: Nurses and physicians have different perspectives in their appraisal when responding to the SQ for patients on hemodialysis. This may reinforce the need for communication and discussion between nurses and physicians to identify the need of serious illness conversations in patients approaching the end of life, in order to adapt hemodialysis care to patient preferences and needs.
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| 9. |
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| 10. |
- Adrian Meredith, Jenny, 1971-, et al.
(författare)
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Design and Synthesis of BACE-1 Inhibitors Containing a New Hydroxyethylene (HE) Scaffold: Potent activities in a cellular assay
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- In a preceding report from our group we disclosed the development of a novel HE transition state isostere with a difluorophenoxymethyl side chain in the P1 position and a methoxy group in the P1’ position furnishing highly potent inhibitors of BACE-1 (i.e. lead compound 1), which moreover exhibit very promising selectivity over cathepsin D. In a continuation of this work with the aim at improving on the cell-based activity and pharmacokinetic properties, we have further developed the SAR for the P1 side chain of inhibitor 1 whereby the P1 side chain oxygen has been substituted for an amine, a carbon or a bond. The chemistry developed for the previous HE inhibitor structure 1 has now been extended to readily accommodate the introduction of new P1 side chains into this new HE scaffold. These modifications have given rise to several highly potent inhibitors where the most potent displayed a BACE-1 Ki value of 0.2 nM and a cell-based Aβ40 IC50 value of 9 nM. Thus, regarding the enzyme inhibition in the cell assay a more than 600-fold improvement compared to compound 1 was achieved via minor structural alterations.
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| 11. |
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| 12. |
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| 13. |
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| 14. |
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| 15. |
- Andersson-Sköld, Yvonne, et al.
(författare)
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A framework for assessing urban greenery's effects and valuing its ecosystem services
- 2018
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Ingår i: Journal of Environmental Management. - : Academic Press. - 0301-4797 .- 1095-8630. ; 205, s. 274-285
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Tidskriftsartikel (refereegranskat)abstract
- Ongoing urban exploitation is increasing pressure to transform urban green spaces, while there is increasing awareness that greenery provides a range of important benefits to city residents. In efforts to help resolve associated problems we have developed a framework for integrated assessments of ecosystem service (ES) benefits and values provided by urban greenery, based on the ecosystem service cascade model. The aim is to provide a method for assessing the contribution to, and valuing, multiple ES provided by urban greenery that can be readily applied in routine planning processes. The framework is unique as it recognizes that an urban greenery comprises several components and functions that can contribute to multiple ecosystem services in one or more ways via different functional traits (e.g. foliage characteristics) for which readily measured indicators have been identified. The framework consists of five steps including compilation of an inventory of indicator; application of effectivity factors to rate indicators' effectiveness; estimation of effects; estimation of benefits for each ES; estimation of the total ES value of the ecosystem. The framework was applied to assess ecosystem services provided by trees, shrubs, herbs, birds, and bees, in green areas spanning an urban gradient in Gothenburg, Sweden. Estimates of perceived values of ecosystem services were obtained from interviews with the public and workshop activities with civil servants. The framework is systematic and transparent at all stages and appears to have potential utility in the existing spatial planning processes.
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| 16. |
- Axelsson, Lena, et al.
(författare)
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End-of-life and palliative care of patients on maintenance hemodialysis treatment : a focus group study
- 2019
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Ingår i: BMC Palliative Care. - : BioMed Central. - 1472-684X. ; 18:1, s. 1-10
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Tidskriftsartikel (refereegranskat)abstract
- Background: Despite complex illness trajectories and a high symptom burden, palliative care has been sub-optimal for patients with end-stage kidney disease and hemodialysis treatment who have a high rate of hospitalization and intensive care towards end of life. There is a growing awareness that further development of palliative care is required to meet the needs of these patients and their family members. In this process, it is important to explore healthcare professionals' views on provision of care. The aim of this study was therefore to describe nurses' and physicians' perspectives on end-of-life and palliative care of patients treated with maintenance hemodialysis. Methods: Four focus group interviews were conducted with renal nurses (17) and physicians (5) in Sweden. Qualitative content analysis was used to analyze data. Results: Participants were committed to giving the best possible care to their patients, but there were challenges and barriers to providing quality palliative care in nephrology settings. Professionals described palliative care as end-of-life care associated with hemodialysis withdrawal or palliative dialysis, but also identified care needs and possibilities that are in line with an earlier integrated palliative approach. This was perceived as complex from an organizational point of view. Participants identified challenges related to coordination of care and different perspectives on care responsibilities that impacted symptom management and patients' quality of life. Communication issues relating to the provision of palliative care were revealed where the hemodialysis setting was regarded as an impediment, and personal and professional experiences, beliefs and knowledge were considered of major importance. Conclusions: Nurses and physicians identified a need for the improvement of both late and earlier palliative care approaches. The results highlighted a requirement for and possibilities of training, counselling and support of health care professionals in the dialysis context. Further, multi-professional palliative care collaborations should be developed to improve the coordination and organization of end-of-life and palliative care of patients and their family members. A climate allowing conversations about advance care planning throughout the illness trajectory may facilitate the gradual integration of palliative care alongside life-prolonging treatment for improved support of patients and families.
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| 17. |
- Axelsson, Lena, et al.
(författare)
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Processes toward the end of life and dialysis withdrawal Physicians' and nurses' perspectives
- 2020
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Ingår i: Nursing Ethics. - : Sage Publications. - 0969-7330 .- 1477-0989. ; 27:2, s. 419-432
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Tidskriftsartikel (refereegranskat)abstract
- Background: Nurses and physicians in nephrology settings provide care for patients with end-stage kidney disease receiving hemodialysis treatment along a complex illness trajectory. Aim: The aim was to explore physicians' and nurses' perspectives on the trajectories toward the end of life involving decisions regarding hemodialysis withdrawal for patients with end-stage kidney disease. Research design and participants: A qualitative research approach was used. Four mixed focus group interviews were conducted with renal physicians (5) and nurses (17) in Sweden. Qualitative content analysis was used to analyse data. Ethical considerations: Ethical approval was obtained (Dnr 2014/304-31). Findings and discussion: Findings illuminated multi-faceted, intertwined processes encompassing healthcare professionals, patients, and family members. The analysis resulted in four themes: Complexities of initiating end-of-life conversations, Genuine attentiveness to the patient's decision-making process, The challenge awaiting the family members' processes, and Negotiating different professional responsibilities. Findings showed complexities and challenges when striving to provide good, ethical care which are related to beneficence, nonmaleficence, and self-determination, and which can give rise to moral distress. Conclusion: There are ethical challenges and strains in the dialysis context that healthcare professionals may not always be prepared for. Supporting healthcare professionals in not allowing complexities to hinder the patient's possibilities for shared decision-making seems important. An open and continual communication, including family meetings, from dialysis initiation could serve to make conversations involving decisions about hemodialysis withdrawal a more natural routine, as well as build up a relationship of trust necessary for the advance care planning about the end of life. Healthcare professionals should also receive support in ethical reasoning to meet these challenges and handle potential moral distress in the dialysis context.
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| 18. |
- Axelsson, Lena, et al.
(författare)
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Unmet Palliative Care Needs Among Patients With End-Stage Kidney Disease : A National Registry Study About the Last Week of Life
- 2018
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Ingår i: Journal of Pain and Symptom Management. - : Elsevier. - 0885-3924 .- 1873-6513. ; 55:2, s. 236-244
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Tidskriftsartikel (refereegranskat)abstract
- Context. End-stage kidney disease (ESKD) is characterized by high physical and psychological burden, and therefore, more knowledge about the palliative care provided close to death is needed. Objectives. To describe symptom prevalence, relief, and management during the last week of life, as well as end-of-life communication, in patients with ESKD. Methods. This study was based on data from the Swedish Register of Palliative Care. Patients aged 18 or older who died from a chronic kidney disease, with or without dialysis treatment (International Classification of Diseases, Tenth Revision, Sweden; N18.5 or N18.9), during 2011 and 2012 were selected. Results. About 472 patients were included. Of six predefined symptoms, pain was the most prevalent (69%), followed by respiratory secretion (46%), anxiety (41%), confusion (30%), shortness of breath (22%), and nausea (17%). Of patients with pain and/or anxiety, 32% and 44%, respectively, were only partly relieved or not relieved at all. Of patients with the other symptoms, a majority (55%-84%) were partly relieved or not relieved at all. End-of-life discussions were reported in 41% of patients and 71% of families. A minority died in specialized palliative care: 8% in hospice/inpatient palliative care and 5% in palliative home care. Of all patients, 19% died alone. Bereavement support was offered to 38% of families. Conclusion. Even if death is expected, most patients dying with ESKD had unmet palliative care needs regarding symptom management, advance care planning, and bereavement support. (C) 2017 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.
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| 19. |
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| 20. |
- Baldanzi, Gabriel, et al.
(författare)
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Evening chronotype is associated with elevated biomarkers of cardiometabolic risk in the EpiHealth cohort: a cross-sectional study
- 2022
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Ingår i: Sleep. - : Oxford University Press. - 0161-8105 .- 1550-9109. ; 45:2
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Tidskriftsartikel (refereegranskat)abstract
- Study objectives: Individuals with evening chronotype have a higher risk of cardiovascular and metabolic disorders, although the underlying mechanisms are not well understood. In a population- based cohort, we aimed to investigate the association between chronotype and 242 circulating proteins from three panels of established or candidate biomarkers of cardiometabolic processes. Methods: In 2,471 participants (49.7% men, mean age 61.2±8.4 SD years) from the EpiHealth cohort, circulating proteins were analyzed with a multiplex proximity extension technique. Participants self- reported their chronotype on a five-level scale from extreme morning to extreme evening chronotype. With the intermediate chronotype set as the reference, each protein was added as the dependent variable in a series of linear regression models adjusted for confounders. Next, the chronotype coefficients were jointly tested and the resulting p-values adjusted for multiple testing using false discovery rate (5%). For the associations identified, we then analyzed the marginal effect of each chronotype category. Results: We identified 17 proteins associated with chronotype. Evening chronotype was positively associated with proteins previously linked to insulin resistance and cardiovascular risk, namely retinoic acid receptor protein 2, fatty acid-binding protein adipocyte, tissue-type plasminogen activator, and plasminogen activator inhibitor 1 (PAI-1). Additionally, PAI-1 was inversely associated with the extreme morning chronotype. Conclusions: In this population-based study, proteins previously related with cardiometabolic risk were elevated in the evening chronotypes. These results may guide future research in the relation between chronotype and cardiometabolic disorders.
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| 21. |
- Baldanzi, Gabriel, et al.
(författare)
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OSA Is Associated With the Human Gut Microbiota Composition and Functional Potential in the Population-Based Swedish CardioPulmonary bioImage Study
- 2023
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Ingår i: Chest. - : Elsevier. - 0012-3692 .- 1931-3543. ; 164:2, s. 503-516
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Obstructive sleep apnea (OSA) is a common sleep-breathing disorder linked to increased risk of cardiovascular disease. Intermittent hypoxia and intermittent airway obstruction, hallmarks of OSA, have been shown in animal models to induce substantial changes to the gut microbiota composition and subsequent transplantation of fecal matter to other animals induced changes in blood pressure and glucose metabolism.RESEARCH QUESTION: Does obstructive sleep apnea in adults associate with the composition and metabolic potential of the human gut microbiota?STUDY DESIGN AND METHODS: We used respiratory polygraphy data from up to 3,570 individuals aged 50-64 from the population-based Swedish CardioPulmonary bioImage Study combined with deep shotgun metagenomics of fecal samples to identify cross-sectional associations between three OSA parameters covering apneas and hypopneas, cumulative sleep time in hypoxia and number of oxygen desaturation events with gut microbiota composition. Data collection about potential confounders was based on questionnaires, on-site anthropometric measurements, plasma metabolomics, and linkage with the Swedish Prescribed Drug Register.RESULTS: We found that all three OSA parameters were associated with lower diversity of species in the gut. Further, the OSA-related hypoxia parameters were in multivariable-adjusted analysis associated with the relative abundance of 128 gut bacterial species, including higher abundance of Blautia obeum and Collinsela aerofaciens. The latter species was also independently associated with increased systolic blood pressure. Further, the cumulative time in hypoxia during sleep was associated with the abundance of genes involved in nine gut microbiota metabolic pathways, including propionate production from lactate. Lastly, we observed two heterogeneous sets of plasma metabolites with opposite association with species positively and negatively associated with hypoxia parameters, respectively.INTERPRETATION: OSA-related hypoxia, but not the number of apneas/hypopneas, is associated with specific gut microbiota species and functions. Our findings lay the foundation for future research on the gut microbiota-mediated health effects of OSA.
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| 22. |
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| 23. |
- Bengtsson, Caroline, et al.
(författare)
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Impact of nasal obstruction on sleep quality : a community-based study of women
- 2015
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Ingår i: European Archives of Oto-Rhino-Laryngology. - : Springer Science and Business Media LLC. - 0937-4477 .- 1434-4726. ; 272:1, s. 97-103
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to analyse the impact of self-reported nasal obstruction on sleep quality in women. A community-based sample of 400 women underwent a full night of polysomnography. Airway diseases, allergies and sleep-related symptoms were assessed by questionnaires. Women with subjective nasal obstruction were subdivided into three groups: persistent nasal obstruction (PNO, n = 46), hay fever (n = 88) and nasal obstruction at night (NON, n = 30). Sleep problems and related daytime symptoms were most prevalent among women with NON. After adjusting for age, BMI, smoking and asthma, NON was an independent predictor of 'Difficulties inducing sleep due to nasal obstruction' [adjusted odds ratio (95 % CI): 89.5 (27.0-296.7)], 'Snoring' [4.2 (1.7-10.2)], 'Sweating at night' [2.6 (1.1-6.1)], 'Difficulties maintaining sleep' [2.7 (1.2-6.2)], and 'Waking up hastily gasping for breath' [32.2 (8.7-119.1)]. 'Dry mouth on awakening' [7.7 (3.2-18.4)], 'Waking up unrefreshed' [2.7 (1.2-6.0)], 'Excessive daytime sleepiness' [2.6 (1.1-6.0)], and 'Daytime nasal obstruction' [12.2 (4.8-31.2)] were also associated with NON. Persistent nasal obstruction and hay fever were both associated with some reported sleep problems due to an overlap with NON. When women with NON were excluded, only 'Daytime nasal obstruction' was still significantly associated with PNO, while hay fever was associated with 'Daytime nasal obstruction' and 'Waking up hastily gasping for breath'. There were no significant differences in objectively measured sleep variables between any of the three subgroups and the study cohort. Self-reported nasal obstruction at night in women has a significant effect on several subjective day- and nighttime symptoms, but it does not appear to affect objectively measured sleep quality.
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| 24. |
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| 25. |
- Bengtsson, Caroline, 1975-
(författare)
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Nasal obstruction – impact on insomnia symptoms and sleep-disordered breathing
- 2019
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Background: Nasal obstruction is very common in the general population, but the role of nasal obstruction in sleep quality is not clear. Nasal obstruction is also prevalent in patients with obstructive sleep apnoea (OSA) and may contribute to poor adherence to continuous positive airway pressure (CPAP) treatment.Aims: To investigate the impact of subjective nasal obstruction, as a single symptom or as part of chronic rhinosinusitis (CRS), in both objective and subjective sleep quality, in three different population based cohorts. Another aim was to investigate the usefulness of the Sinonasal Outcome Test-22 (SNOT-22) and peak nasal inspiratory flow (PNIF) in the treatment of OSA patients.Methods and results: In paper I (the SHE-study), a community-based sample of 400 women were investigated with polysomnography and questions on sleep quality, daytime- and nasal symptoms. Women with nasal obstruction at night (n=30) had significantly higher prevalence of several night time symptoms and excessive daytime sleepiness (EDS), but the polysomnography was normal.In paper II (the GA2LEN study, n= 26, 647) and paper III (RHINE II and RHINE III studies, n= 5, 145) questionnaires on sleep quality, daytime- and nasal symptoms were used, and CRS was defined according to the epidemiological diagnostic criteria of the European Position Paper of Rhinosinusitis and Nasal Polyps (EPOS). In paper II, sleep problems were highly prevalent in CRS, and there was a dose-response relationship between the disease severity of CRS and sleep problems. The addition of persistent allergic rhinitis to CRS further increased the risk of sleep problems.In paper III, 2.7% of individuals without nasal symptoms at baseline had developed CRS at follow-up 10 years later. Strong associations between incident CRS and impaired sleep quality and EDS were found. Three insomnia symptoms at baseline increased the risk for CRS at follow-up.In paper IV, 197 OSA patients initiating CPAP treatment were investigated before starting CPAP and at the follow-up 3-4 weeks later. SNOT-22 scores were generally high among all OSA patients indicating a large sinonasal disease burden, and improved among those with CPAP adherence ≥ 4 hours/night. A low PNIF value increased the risk for poor CPAP adherence.Conclusions: Subjective nasal obstruction at night impairs subjective sleep quality in women, but does not affect objective sleep quality. CRS impairs subjective sleep quality, and insomnia symptoms may be a risk factor for CRS. SNOT-22 and PNIF may be useful tools in the treatment of OSA patients.
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| 26. |
- Bengtsson, Caroline, et al.
(författare)
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Sinonasal outcome test-22 and peak nasal inspiratory flow : valuable tools in obstructive sleep apnoea
- 2020
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Ingår i: Rhinology. - 0300-0729 .- 1996-8604. ; 58:4, s. 341-348
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Tidskriftsartikel (refereegranskat)abstract
- Background: Sinonasal complaints contribute to low adherence to continuous positive airway pressure (CPAP) treatment. We aimed to investigate sinonasal health in obstructive sleep apnoea (OSA) patients, using the sinonasal outcome test-22 (SNOT-22), and to analyse whether SNOT-22 is affected by CPAP adherence. We also aimed to investigate whether peak nasal inspiratory flow (PNIF) was able to predict adherence to CPAP. Methods:The study population comprised 197 OSA patients (60 females) initiating CPAP treatment The SNOT-22, PNIF and the Epworth Sleepiness Scale were assessed at baseline and follow-up. One-night polygraphy, the Hospital Anxiety and Depression Scale, peak expiratory flow and health-related issues were assessed at baseline. At follow-up, the patients were categorised into adherent (>4 hours/night) and non-adherent (<4 hours/night) to CPAP treatment. Results: The average time for following up CPAP treatment was (mean +/- SD) 24.0 +/- 23.9 days and it did not differ significantly between the groups.The SNOT-22 score was elevated among all OSA patients, 36.1 +/- 19.4.There was a larger improvement in the SNOT-22 score at follow-up among adherent CPAP users compared with non-adherent users (-10.4 +/- 13.9 vs. -3.2 +/- 15.4). A PNIF value of < 100 litres/min increased the risk of non-adherence to CPAP with an adjusted odds ratio (OR) of 2.40 ((95% CI 1.16-5.00)). Conclusions: The SNOT-22 was elevated in patients with OSA, indicating a considerable sinonasal disease burden.The SNOT-22 improved with good CPAP adherence. A low PNIF value was able to predict poor CPAP adherence. Both the SNOT-22 and PNIF can be valuable tools in the evaluation of OSA patients and in the management of CPAP treatment.
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| 27. |
- Cai, Gui-Hong, et al.
(författare)
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Both weight at age 20 and weight gain have an impact on sleep disturbances later in life : Results of the EpiHealth study
- 2018
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Ingår i: Sleep. - : Oxford University Press (OUP). - 0161-8105 .- 1550-9109. ; 41:1
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Tidskriftsartikel (refereegranskat)abstract
- Study Objectives: Obesity is often associated with impaired sleep, whereas the impact of body mass index (BMI) at younger age and previous weight gain on sleep problems remains unknown. Methods: The present study utilized data from the Swedish EpiHealth cohort study. A total of 15845 participants (45–75 years) filled out an internet-based questionnaire. BMI was calculated from both measured data at study time and self-reported data at age 20 from the questionnaire. Results: Sleep-related symptoms were most common among obese individuals (BMI > 30 kg/m2). An association between weight gain and sleep problems was found and those with a low BMI at age 20 were most vulnerable to weight gain when it came to risk of sleep problems. Among those who were underweight (BMI < 18.5 kg/m2) at age 20, weight gain (kg/year) was associated with difficulties initiating sleep with an adjusted OR of 2.64 (95% CI: 1.51–4.62) after adjusting for age, sex, smoking, alcohol consumption, physical activity, education, and civil status. The corresponding adjusted OR’s among those who had been normal weight (BMI 18.5–24.99) and overweight (BMI 25–29.99 kg/m2) at age 20 were 1.89 (1.47–2.45) and 1.02 (0.48–2.13), respectively. Also difficulties maintaining sleep and snoring were most strongly related to weight gain among those who were underweight at age 20 with decreasing odds with increasing BMI at that age. Conclusions: Sleep problems are related to weight gain and obesity. The impact of weight is most pronounced among those who had a low BMI when young.
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| 28. |
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| 29. |
- Cai, Gui-Hong, et al.
(författare)
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Insomnia symptoms and sleep duration and their combined effects in relation to associations with obesity and central obesity
- 2018
-
Ingår i: Sleep Medicine. - : Elsevier BV. - 1389-9457 .- 1878-5506. ; 46, s. 81-87
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Previous studies have shown that both sleep duration and insomnia have an impact on obesity and central obesity. However, studies of the joint effects of these sleep disorders are still sparse. Methods: The present study utilized data from the Swedish EpiHealth cohort study. Participants (45 - 78 y) were asked to fill out an internet-based questionnaire. Body mass index (BMI) and central obesity (calculated from waist circumference) were based on measured data. Results: A total of 18,823 participants (mean age = 60 ys) were included in this study. The reported prevalence of short (<6 h/night) and long (>9 h/night) sleep duration was 8% and 4% respectively, and insomnia symptoms was 19%. Of the study population, 16% were obese (BMI >= 30 kg/m(2)) and 40% had central obesity. There was a U-shaped association between sleep duration and obesity and central obesity, and significant associations between insomnia symptoms and obesity. When stratifying sleep duration by concurrent insomnia symptoms, there were associations (odds ratios, (95% confidence intervals)) between the combination of both short (1.48, (1.22-1.80)) and long sleep duration (1.77 (1.00 - 3.16)) with insomnia symptoms and obesity and central obesity (1.36 (1.16-1.61) and 2.44 (1.41-3.24) respectively). However, there was no significant association between insomnia symptoms and obesity or central obesity in participants with normal sleep duration. For central obesity there was an association with long sleep duration regardless of insomnia symptoms, while the association with short sleep duration was significant only if insomnia symptoms were present. Conclusions: Both short and long sleep duration, as well as insomnia symptoms, are associated with obesity and central obesity. There is an important joint effect of sleep duration and insomnia symptoms and there is no association between insomnia symptoms and obesity, as long as a normal sleeping time can be attained. This indicates that sleep duration rather than insomnia symptoms per se is of importance for the relationship between sleep and obesity.
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| 30. |
- Camp, Karin, et al.
(författare)
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Characterization and nutrient evaluation of wet and dried wheat distillers' grain for growing pigs
- 2013
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Ingår i: Animal Feed Science and Technology. - : Elsevier BV. - 0377-8401 .- 1873-2216. ; 186, s. 45-52
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Tidskriftsartikel (refereegranskat)abstract
- This study comprised one wet wheat distillers' grain with solubles (WDGS) from an ethanol company and one dried wheat distillers' grain with solubles (DDGS) from a biofuel ethanol company. The WDGS was microbially and biochemically characterized, and the digestibility of dietary components, energy, amino acids, calcium and phosphorus (P) in WDGS and DDGS was determined. The pH was 3.9 in the WDGS and the acetic and lactic acid level was 6.9 and 1.5 g/l, respectively. Lactic acid bacteria remained at Log 8 colony forming units (Cfu)/g WDGS throughout the study, whereas yeast increased from Log 5 to Log 6 Cfu/g WDGS. Lactobacillus amylolyticus was the dominant lactic acid bacteria species, followed by Lactobacillus pan is and Lactobacillus buchneri. The yeast flora was completely dominated by Candida ethanolica. The experimental diets contained on dry matter (DM) basis 50% WDGS + 50% basal diet (diet W) and 50% DDGS + 50% basal diet (diet D). The basal diet consisted of maize starch, sucrose, vitamins and minerals (except P). Seven castrated male pigs with post valve t-caecum cannulas were fed the experimental diets according to a change-over design during two periods. In a pre- and post-period, casein was given as only protein source with the basal diet to estimate endogenous losses of nitrogen and amino acids, and thereby the standardized ileal digestibility (SID). The coefficients of apparent ileal digestibility (CAID) of organic matter (OM) did not differ between diets, but the coefficient of apparent total tract digestibility (CATTD) of OM was higher (P<0.05) for diet W. The CAID, CATTD and SID of crude protein was higher (P<0.05) in diet W. The SID for lysine and methionine was higher (P<0.01) in WDGS than in DOGS. The digestibility of P was higher (P<0.01) in diet D. The results indicate that a dried wheat distillers' grain product can have a lower ileal digestibility of lysine and methionine than a wet wheat distillers' grain product, although a higher digestibility of P. There seem to be little difference in energy value of the wet and dry products studied. (C) 2013 Elsevier B.V. All rights reserved.
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| 31. |
- Camp, Karin, et al.
(författare)
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Ileal and total tract digestibility of wet and dried wheat distillers grain products in growing pigs
- 2012
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Ingår i: Journal of Animal Science. - : Oxford University Press (OUP). - 0021-8812 .- 1525-3163. ; 90, s. 131-133
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Tidskriftsartikel (refereegranskat)abstract
- The apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of nutrients were evaluated in 2 commercially available products: wheat (Triticum aestivum) wet distillers grain with solubles (WDGS) and wheat dried distillers grain with solubles (DDGS). Two diets included (DM basis) 50% basal diet with either 50% WDGS (W) or 50% DDGS (D). The basal diet included corn (Zea mays) starch, sugar, vitamins, and minerals. Seven castrated male pigs with post valve T-cecum cannulas were fed the diets according to a changeover design during two 14-d periods. In a pre- and postperiod, casein was given as the only protein source with the basal diet to estimate endogenous losses of N and AA for calculation of standardized ileal digestibility (SID). The AID of OM did not differ between diets, but ATTD of OM was higher (P < 0.05) for diet W. The AID (76.2 vs. 68.9%), SID, and ATTD of CP was higher (P < 0.05) in diet W than diet D. The SID for Lys (75.7 vs. 51.8%) and Met (75.8 vs. 70.1%) was higher (P < 0.01) in WDGS than DDGS. In conclusion, drying of wheat distillers grain products can markedly lower ileal digestibility of Lys and Met whereas negative effects on energy value are small.
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| 32. |
- Dolatkhah, Mats, et al.
(författare)
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Politiska diskurser om barnbibliotek : En jämförande analys av två statliga utredningar
- 2012
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Ingår i: Styra eller stödja? Svensk folkbibliotekspolitik under hundra år. - : Valfrid. - 9789197876810 ; , s. 175-187
-
Bokkapitel (refereegranskat)abstract
- 1900-talet skulle bli barnets århundrade, tänkte sig Ellen Key alldeles innan seklet bröt in. Idag, alldeles efter dess slut, finns det goda skäl att tänka sig 1900-talet också som ett folkbibliotekens århundrade. Biblioteksreformerna i början av 1900-talet markerade en tydlig vilja från statsmakterna att stödja och underbygga bibliotek avsedda för breda befolkningslager. Samma sorts vilja kom sedan till politiskt uttryck flera gånger under de följande hundra åren.
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| 33. |
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| 34. |
- Emilsson, Össur Ingi, et al.
(författare)
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Insufficient sleep and new onset of nocturnal gastroesophageal reflux among women : a longitudinal cohort study
- 2022
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Ingår i: Journal of Clinical Sleep Medicine (JCSM). - : American Academy of Sleep Medicine (AASM). - 1550-9389 .- 1550-9397. ; 18:7, s. 1731-1737
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Tidskriftsartikel (refereegranskat)abstract
- Study Objectives: Whether short or insufficient sleep are risk factors for new-onset nocturnal gastroesophageal reflux (nGER). Methods: In this 10-year longitudinal study, adult general-population women in Uppsala, Sweden, answered questionnaires on sleep, nGER, and other conditions on 2 occasions. Participants at baseline totaled 6,790, while participants at follow-up totaled 4,925. "Short sleep" was defined as sleeping < 6 hours/night and "insufficient sleep" was defined as reporting an average actual sleep duration below 80% of the self-estimated need for sleep duration but without "short sleep." nGER was defined as reporting heartburn or acid reflux after going to bed sometimes, often, or very often. The confounding factors-age, body mass index, physical activity, caffeine intake, smoking habits, alcohol dependence, depression, anxiety, and snoring-were defined from the questionnaire. Results: At baseline, 839 participants reported short sleep and 1,079 participants were defined as having insufficient sleep. Both participants with insufficient sleep and short sleep had nGER more often than those with sufficient sleep (26% vs 17% vs 10%, respectively). At follow-up, a new onset of nGER was twice as common among those with insufficient or short sleep at baseline and follow-up, compared with those with sufficient sleep at baseline and follow-up, even after adjusting for confounding factors (odds ratio 2.0 [1.5-2.8], P <.001). Conclusions: Insufficient sleep and short sleep are associated with nGER. Persistent insufficient and/or short sleep independently increases the risk of developing nGER over a 10-year follow-up. Women seeking treatment for nGER should be questioned about their sleep habits to identify insufficient sleep as a possible causative factor.
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| 35. |
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| 36. |
- Frenander, Anders, et al.
(författare)
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Reflektioner och framåtblickande
- 2012
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Ingår i: Styra eller stödja? Svensk folkbibliotekspolitik under hundra år. - : Publiceringsföreningen Valfrid. - 9789197876810 ; , s. 309-319
-
Bokkapitel (refereegranskat)abstract
- Kapitlet sammanfattar viktiga trender och mönster i bokens tidigare kapitel och pekar ut några intressanta forskningsuppslag.
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| 37. |
- Ghilotti, Francesca, et al.
(författare)
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Relationship between sleep characteristics and markers of inflammation in Swedish women from the general population
- 2021
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Ingår i: Journal of Sleep Research. - : Wiley. - 0962-1105 .- 1365-2869. ; 30:2
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Tidskriftsartikel (refereegranskat)abstract
- Systemic inflammation is thought to mediate the link between sleep and cardiovascular outcomes, but previous studies on sleep habits and inflammation markers have found inconsistent results. This study investigated the relationship between sleep characteristics and C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF alpha). A representative sample of 319 Swedish women was randomly selected from the general population for in-home polysomnography, sleep questionnaire and blood samples. As variables were highly correlated, principal component analysis was used to reduce the number of original variables. Linear regression with log-transformation of the outcomes (lnCRP, lnIL-6 and lnTNF alpha) and quantile regression were fitted to estimate cross-sectional relationships. Multivariable linear regression models suggested a significant association of insomnia symptoms (self-reported) with higher lnCRP levels (beta = 0.11; 95% confidence interval [CI] = 0.02; 0.21), but not with lnIL-6 and lnTNF alpha. From quantile regression analysis we found that a high non-restorative index (subjective) and insomnia symptoms (self-reported) were associated with higher values of CRP, especially in the highest quantiles of the CRP distribution (90th percentile: beta = 0.71; 95% CI = 0.17; 1.24. beta = 1.23; 95% CI = 0.44; 2.02, respectively). Additionally, higher amounts of rapid eye movement (REM) sleep were associated with lower CRP values (90th percentile: beta = -0.80; 95% CI = -0.14; -1.46). In conclusion, sleep disturbances (self-reported), specifically difficulties maintaining sleep and early morning awakenings, but not sleep duration (neither subjective nor objective), were associated with higher CRP levels. No association was found with IL-6 or TNF alpha. Elevated REM sleep was associated with lower CRP levels. The results suggest that inflammation might be an intermediate mechanism linking sleep and health in women.
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| 38. |
- Guzzi, Nicola, et al.
(författare)
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Pseudouridylation of tRNA-Derived Fragments Steers Translational Control in Stem Cells
- 2018
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Ingår i: Cell. - : Elsevier BV. - 0092-8674 .- 1097-4172. ; 173:5, s. 26-1216
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Tidskriftsartikel (refereegranskat)abstract
- Pseudouridylation (Ψ) is the most abundant and widespread type of RNA epigenetic modification in living organisms; however, the biological role of Ψ remains poorly understood. Here, we show that a Ψ-driven posttranscriptional program steers translation control to impact stem cell commitment during early embryogenesis. Mechanistically, the Ψ “writer” PUS7 modifies and activates a novel network of tRNA-derived small fragments (tRFs) targeting the translation initiation complex. PUS7 inactivation in embryonic stem cells impairs tRF-mediated translation regulation, leading to increased protein biosynthesis and defective germ layer specification. Remarkably, dysregulation of this posttranscriptional regulatory circuitry impairs hematopoietic stem cell commitment and is common to aggressive subtypes of human myelodysplastic syndromes. Our findings unveil a critical function of Ψ in directing translation control in stem cells with important implications for development and disease. Translational control in stem cells is orchestrated by pseudouridylation of specific tRNA-derived fragments, impacting stem cell commitment during key developmental processes.
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| 39. |
- Hansson, Joacim, 1966-, et al.
(författare)
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Profession, utbildning, forskning : biblioteks- och informationsvetenskap för en stärkt bibliotekarieprofession
- 2018
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Rapport (populärvet., debatt m.m.)abstract
- Sekretariatet för nationell biblioteksstrategi vid Kungliga Biblioteket har givit de fem biblioteks- och informationsvetenskapliga utbildningarna vid Högskolan i Borås, Linnéuniversitetet, Lunds univeritet, Umeå universitet och Uppsala universitet uppdraget att utreda och formulera förslag kring utbildning och forskning för en stärkt bibliotekarieprofession. Syftet med föreliggande rapport är, att visa situationen för svensk biblioteks- och informationsvetenskap, tydliggöra relationen till bibliotekarieprofessionen och lämna strategiska förslag på hur ämnet kan förstärkas till förmån för en stärkt professionsutvecklig. En omvärldsanalys med riktning mot bibliotekssektorn görs samt en beskrivning av nuläget för biblioteks- och informationsvetenskaplig utbildning och forskning. Biblioteks- och informationsvetenskapens centrala betydelse för bibliotekarieprofessionen lyfts fram. Utbildingsprogrammen i ämnet attraherar gott om studenter och som svar på bibliotekens konstaterade behov av biblioteks- och informationsvetenskapligt utbildad personal argumenterar rapportförfattarna för möjligheten att expandera utbildningarna på kandidat- och masternivå vid samtliga fem lärosäten. Inom forskningen konstateras, att trots att ämnet idag i grunden fungerar väl finns ännu svårigheter att erhålla finansiering för professionsinriktad biblioteksforskning. Omvärldsanalysen visar upp ett behov av en tydligare struktur för kontinuerlig kompetensutveckling inom bibliotekarieprofessionen. Rapporten mynnar ut i fem strategiska förslag rörande grundutbildning, forskning och kontinuerlig kompetensutveckling:En ökning av antalet studieplatser på program på kandidat- och masternivå i biblioteks- och informationsvetenskap.Nationell forskarskola för biblioteksforskning.Inrättande av en externfinansierad professur med inriktning mot biblioteksforskning.Stärkt finansieringsstruktur för biblioteksforskning.Etablerande av en samlad nationell struktur för kontinuerlig kompetensutveckling.
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| 40. |
- Hedemark, Åse, 1973-, et al.
(författare)
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Babies, Bodies and Books : Librarians' Work Early Literacy
- 2018
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Ingår i: Library Trends. - Baltimore : Johns Hopkins University Press. - 0024-2594 .- 1559-0682. ; 66:4, s. 422-441
-
Tidskriftsartikel (refereegranskat)abstract
- This article reports on an empirical study of children's librarians' activities supporting the development of literacy among very young children. The theoretical framework stems primarily from a LIS practice-theoretical perspective where literacy is viewed as corporeal practice. The empirical material consists of a transcript from one focus-group interview with seven children's librarians, and field notes from a series of seven documented observations of program sessions at three public libraries in Sweden. A qualitative content analysis was undertaken, and the empirical material was interpreted with an analytical focus on the concepts of literacy activities, embodiment, and literacy practices. The study shows how bodies act as sites of information and communication. Not only the bodies of the librarians but also the bodies of parents and the children acted as central sites, affecting literacy practices during library programs. The librarians express that their engagement in professional practice has resulted in a certain bodily sense for finding the right level of communicating with babies. The librarians have also learned to trust this embodied judgement as part of their professional expertise.
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| 41. |
- Hedemark, Åse, 1973-, et al.
(författare)
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Stories of storytime : the discursive shaping of professional identity among Swedish children’s librarians
- 2017
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Ingår i: Information research. - 1368-1613. ; 22:1
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Tidskriftsartikel (refereegranskat)abstract
- Introduction. This paper reports an empirical study on Swedish children’s librarians’ shaping of professional identity, as it emerges from the participants’ statements about their work with storytime activities and the competences required. Method. The empirical material consists of a transcript from one focus group interview with eight children’s librarians. Analysis. A discursively oriented text analysis was conducted. The transcript was initially examined in terms of the explicit contents of the participants’ statements. It was then interpreted further with an analytical focus on the concepts of professional identity and key narratives. Results. The analysis indicates both shared and conflicting ideas concerning work methods and competencies that define and legitimise librarians’ storytime sessions. In discussing competences, the librarians’ point out inter-professional relations, especially to teachers, as important aspects of identity shaping. A key narrative unfolds, with the library presented as an enclosed, magical space. Conclusions. Storytime is a debated object of professional expertise. There is a lack of a specialist terminology for storytime activities, which may counteract the professional knowledge claims of this female-intensive group. The professional identity of children’s librarians appears multifaceted and somewhat vague and thus calls for further investigation.
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| 42. |
- Hedman, Linnea, et al.
(författare)
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Association of Electronic Cigarette Use With Smoking Habits, Demographic Factors, and Respiratory Symptoms
- 2018
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Ingår i: Jama Network Open. - : American Medical Association (AMA). - 2574-3805. ; 1:3
-
Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE There is an ongoing debate about whether electronic cigarettes (e-cigarettes) are the solution to the tobacco epidemic or a new public health threat. Large representative studies are needed to study e-cigarette use in the general population, but hardly any have been published. OBJECTIVES To estimate the prevalence of e-cigarette use and to investigate the association of e-cigarette use with smoking habits, demographic factors, and respiratory symptoms. DESIGN, SETTING, AND PARTICIPANTS Cross-sectional, population-based study of random samples of the population, performed within the Obstructive Lung Disease in Northern Sweden (OLIN) study and West Sweden Asthma Study (WSAS). The same validated questionnaire including identical questions was used in OLIN and WSAS. In 2016, OLIN and WSAS conducted postal questionnaire surveys in random samples of adults aged 20 to 75 years. In OLIN, 6519 participated (response rate, 56.4%); in WSAS, 23 753 participated (response rate, 50.1%). MAIN OUTCOMES AND MEASURES Electronic cigarette use, smoking habits, and respiratory symptoms. RESULTS Of 30 272 participants (16 325 women [53.9%]). 3897 (12.9%) were aged 20 to 29 years; 4242 (14.0%). 30 to 39 years; 5082 (16.8%). 40 to 49 years; 6052 (20.0%), 50 to 59 years; 6628 (21.9%), 60 to 69 years; and 4371(14.4%), 70 to 75 years. The number of current smokers was 3694 (12.3%), and 7305 (24.4%) were former smokers. The number of e-cigarette users was 529 (2.0%). and e-cigarette use was more common among men (275 of 12 347 [2.2%; 95% CI, 2.0%-2.5%]) than women (254 of 14 022 [1.8%; 95% CI, 1.6%-2.0%]). Among current smokers. 350 of 3566 (9.8%; 95% CI, 8.8%10.8%) used e-cigarettes compared with 79 of 6875 (1.1%; 95% CI, 0.9%-1.3%) in former smokers and 96 of 15 832 (0.6%; 95% CI, 0.5%-0.7%) in nonsmokers (P < .001). Among e-cigarette users who answered the survey question about cigarette-smoking habits (n = 525). 350 (66.7%; 95% CI, 62.7%-70.7%) were current smokers, 79 (15.0%; 95% CI, 11.9%-18.1%) were former smokers, and 96 (18.3%; 95% CI, 15.0%-21.6%) were nonsmokers (P < .001 for trend). In a regression analysis, e-cigarette use was associated with male sex (odds ratio [OR], 1.35; 95% CI. 1.12-1.62); age groups 20 to 29 years (OR. 2.77; 95% CI, 1.90-4.05), 30 to 39 years (OR, 2.27; 95% CI, 1.53-3.36), 40 to 49 years (OR, 1.65; 95% CI, 1.11-2.44). and 50 to 59 years (OR, 1.47; 95% CI, 1.01-2.12); educational level at primary school (OR, 1.99; 95% CI, 1.51-2.64) and upper secondary school (OR, 1.57; 95% CI, 1.25-1.96); former smoking (OR. 2.37; 95% CI, 1.73-3.24); and current smoking (OR. 18.10; 95% CI, 14.19-23.09). All respiratory symptoms were most common among dual users and former smokers and nonsmokers who used e-cigarettes. CONCLUSIONS AND RELEVANCE Use of e-cigarettes was most common among smokers, and dual users had the highest prevalence of respiratory symptoms. On a population level, this study indicates that the present use of e-cigarettes does not adequately serve as a smoking cessation tool.
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| 43. |
- Hellgren, Jenny M., 1973-, et al.
(författare)
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Motivating students with authentic science experiences : changes in motivation for school science
- 2017
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Ingår i: Research in Science & Technological Education. - Abingdon : Taylor & Francis. - 0263-5143 .- 1470-1138. ; 35:4, s. 409-426
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Tidskriftsartikel (refereegranskat)abstract
- Background: Students' motivation for science declines over the early teenage years, and students often find school science difficult and irrelevant to their everyday lives. This paper asks whether creating opportunities to connect school science to authentic science can have positive effects on student motivation.Purpose: To understand how authentic science experiences can affect students' motivation for science and students’ goals, values, beliefs and attitudes towards science.Programme description: The Medicine Hunt brought scientists and students together to find bacteria that produce secondary metabolites with antibiotic effects. Scientists received help with collecting soil samples and teachers and students took an active role in research and worked with solving an authentic problem as a part of their ordinary school science over a course of six months.Sample: About 388 students from 18 lower-secondary school classes participating in the Medicine Hunt. Students were enrolled in grade seven to nine (13–15 years old). At this stage, science is compulsory, and all students follow the same science course. The classes represented different geographical regions of Sweden.Design and methods: Students filled in motivation questionnaires before and after the Medicine Hunt. Paired t-tests were used to evaluate how students’ intrinsic motivation, goals, values, beliefs and attitudes towards science changed over the project period.Results: Students' intrinsic motivation for school science and plans for future participation in science remained unchanged during the period they participated in the Medicine Hunt, and students' goals, values and attitudes followed the well-documented pattern of decline. Thus, the authentic experience can arrest the well-described decline for some motivation-related factors.Conclusions: The findings suggest that the authentic experience can arrest some aspects of the decline in motivation for science in the teenage years. The paper discusses the processes around students' motivation in relation to authentic experiences.
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| 44. |
- Jensen, Poul Erik H., et al.
(författare)
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Detection and kinetics of persistent neutralizing anti-interferon-beta antibodies in patients with multiple sclerosis : Results from the ABIRISK prospective cohort study
- 2019
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Ingår i: Journal of Neuroimmunology. - : Elsevier. - 0165-5728 .- 1872-8421. ; 326, s. 19-27
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Tidskriftsartikel (refereegranskat)abstract
- Two validated assays, a bridging ELISA and a luciferase-based bioassay, were compared for detection of anti-drug antibodies (ADA) against interferon-beta (IFN-β) in patients with multiple sclerosis. Serum samples were tested from patients enrolled in a prospective study of 18 months. In contrast to the ELISA, when IFN-β-specific rabbit polyclonal and human monoclonal antibodies were tested, the bioassay was the more sensitive to detect IFN-β ADA in patients' sera. For clinical samples, selection of method of ELISA should be evaluated prior to the use of a multi-tiered approach. A titer threshold value is reported that may be used as a predictor for persistently positive neutralizing ADA.
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| 45. |
- Johansson, Peter, 1975-, et al.
(författare)
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Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh : an evaluation against polysomnography
- 2023
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Ingår i: Journal of Sleep Research. - : John Wiley & Sons. - 0962-1105 .- 1365-2869. ; 32:2
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Tidskriftsartikel (refereegranskat)abstract
- Accelerometers placed on the thigh provide accurate measures of daily physical activity types, postures and sedentary behaviours, over 24 h and across consecutive days. However, the ability to estimate sleep duration or quality from thigh-worn accelerometers is uncertain and has not been evaluated in comparison with the 'gold-standard' measurement of sleep polysomnography. This study aimed to develop an algorithm for sleep estimation using the raw data from a thigh-worn accelerometer and to evaluate it in comparison with polysomnography. The algorithm was developed and optimised on a dataset consisting of 23 single-night polysomnography recordings, collected in a laboratory, from 15 asymptomatic adults. This optimised algorithm was then applied to a separate evaluation dataset, in which, 71 adult males (mean [SD] age 57 [11] years, height 181 [6] cm, weight 82 [13] kg) wore ambulatory polysomnography equipment and a thigh-worn accelerometer, simultaneously, whilst sleeping at home. Compared with polysomnography, the algorithm had a sensitivity of 0.84 and a specificity of 0.55 when estimating sleep periods. Sleep intervals were underestimated by 21 min (130 min, Limits of Agreement Range [LoAR]). Total sleep time was underestimated by 32 min (233 min LoAR). Our results evaluate the performance of a new algorithm for estimating sleep and outline the limitations. Based on these results, we conclude that a single device can provide estimates of the sleep interval and total sleep time with sufficient accuracy for the measurement of daily physical activity, sedentary behaviour, and sleep, on a group level in free-living settings.
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| 46. |
- Johansson Strandkvist, Viktor, et al.
(författare)
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Hand grip strength is associated with forced expiratory volume in 1 second among subjects with COPD : report from a population-based cohort study
- 2016
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Ingår i: The International Journal of Chronic Obstructive Pulmonary Disease. - : Dove Medical Press. - 1176-9106 .- 1178-2005. ; 11, s. 2527-2534
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Tidskriftsartikel (refereegranskat)abstract
- Background: Cardiovascular diseases and skeletal muscle dysfunction are common comorbidities in COPD. Hand grip strength (HGS) is related to general muscle strength and is associated with cardiovascular disease and all-cause mortality, while the results from small selected COPD populations are contradictory. The aim of this population-based study was to compare HGS among the subjects with and without COPD, to evaluate HGS in relation to COPD severity, and to evaluate the impact of heart disease. Subjects and methods: Data were collected from the Obstructive Lung disease in Northern Sweden COPD study, where the subjects with and without COPD have been invited to annual examinations since 2005. In 2009-2010, 441 subjects with COPD (postbronchodilator forced expiratory volume in 1 second [FEV1]/vital capacity,0.70) and 570 without COPD participated in structured interviews, spirometry, and measurements of HGS. Results: The mean HGS was similar when comparing subjects with and without COPD, but those with heart disease had lower HGS than those without. When compared by Global Initiative for Chronic Obstructive Lung Disease (GOLD) grades, the subjects with GOLD 3-4 had lower HGS than those without COPD in both sexes (females 21.4 kg vs 26.9 kg, P=0.010; males 41.5 kg vs 46.3 kg, P=0.038), and the difference persisted also when adjusted for confounders. Among the subjects with COPD, HGS was associated with FEV1% of predicted value but not heart disease when adjusted for height, age, sex, and smoking habits, and the pattern was similar among males and females. Conclusion: In this population-based study, the subjects with GOLD 3-4 had lower HGS than the subjects without COPD. Among those with COPD, HGS was associated with FEV1% of predicted value but not heart disease, and the pattern was similar in both sexes.
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| 47. |
- Johansson Strandkvist, Viktor, et al.
(författare)
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Impact of heart disease on hand grip strength in COPD: epidemiological data
- 2016
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Konferensbidrag (refereegranskat)abstract
- Background: Hand grip strength (HGS) and heart disease (HD) are related to mortality. Peripheral muscle dysfunction and HD are both frequently observed among subjects with COPD, but the relationship between HGS and HD in COPD is unclear.Aim: To evaluate HGS and the impact of HD among subjects with and without COPD.Methods: Data was collected from the OLIN (Obstructive Lung Disease in Northern Sweden) COPD study, where subjects with COPD have been invited to annual examinations since 2005 together with age- and sex-matched subjects without COPD. During 2009, 441 subjects with COPD and 570 without COPD participated in examinations including structured interviews, spirometry and measurements of HGS. COPD was defined as post-bronchodilator FEV1/VC<0.70.Results: Both among subjects with and without COPD, and in both sexes, those with HD had significantly lower HGS. The proportion of subjects below estimated normal value for HGS was similar in subjects with and without COPD and in both sexes; among women (35.4 vs. 33.4%, p=0.714) and men (19.1 vs 15.9%, p=0.315). In a linear regression model among subjects with COPD only, HGS was significantly associated with age, beta coefficient (B) = -0.46 (p<0.001), sex, B=19.85 (p<0.001) and FEV1 % of predicted normal value, B=0.06 (p=0.007), but not with HD or smoking habits. When a similar model was estimated among subjects without COPD, HGS was only associated with age and sex.Conclusions: In this population-based study, subjects with heart disease had lower hand grip strength regardless if they had COPD or not. Among COPD subjects, hand grip strength was associated with age, sex and FEV1, but not with heart disease.
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| 48. |
- Kamble, Prasad G., et al.
(författare)
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Sleep apnea in men is associated with altered lipid metabolism, glucose tolerance, insulin sensitivity, and body fat percentage
- 2020
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Ingår i: Endocrine. - : Springer. - 1355-008X .- 1559-0100. ; 70, s. 48-57
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Obstructive sleep apnea (OSA) is associated with obesity and risk for type 2 diabetes. In this community-based study, we thoroughly investigated fatty acid metabolism, incretin response, glucose tolerance, insulin secretion and insulin sensitivity, and autonomic nerve activity in men with or without OSA.Methods: Fifteen men without diabetes but with signs of severe OSA, defined as apnea–hypopnea index (AHI) >30, and 15 age- and BMI-matched men without OSA (AHI < 5) were recruited from a community-based cohort. Assessments included clinical and anthropometric measurements, a 2-h oral glucose tolerance test (OGTT), and autonomic nerve activity using heart rate variability (HRV).Results: Men with OSA had higher body fat % than BMI-matched men without OSA (p = 0.046) and it was associated with markers of insulin resistance. The area under the curve for nonesterified fatty acids (NEFA) during OGTT was higher in men with OSA (p = 0.021) and fasting NEFA levels were numerically higher (p = 0.097). The plasma glucose at fasting and during OGTT was higher in men with OSA (p < 0.001). Incretin response was similar between groups. Fasting and OGTT-derived indices indicated impaired insulin sensitivity in men with OSA. Compared with men without OSA, Matsuda index (p = 0.068) and Gutt index (p < 0.01) were lower in men with OSA. The HRV measures did not differ between groups.Conclusions: Our study suggests that fatty acid handling, glucose tolerance, and insulin sensitivity are impaired in men with severe OSA. This might partly be explained by the increased body fat percentage.
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| 49. |
- Kindblom, Jenny, 1971, et al.
(författare)
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Increased adipogenesis in bone marrow but decreased bone mineral density in mice devoid of thyroid hormone receptors.
- 2005
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Ingår i: Bone. - : Elsevier BV. - 8756-3282. ; 36:4, s. 607-16
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Tidskriftsartikel (refereegranskat)abstract
- Mice deficient for all known thyroid hormone receptors, TRalpha1-/-beta-/- mice, display a clear skeletal phenotype characterized by growth retardation, delayed maturation of long bones and decreased trabecular and total bone mineral density (BMD; -14.6 +/- 2.8%, -14.4 +/- 1.5%). The aim of the present study was to investigate the molecular mechanisms behind the skeletal phenotype in TRalpha1-/-beta-/- mice. Global gene expression analysis was performed on total vertebrae from wild-type (WT) and TRalpha1-/-beta-/- mice using DNA microarray and the results were verified by real-time PCR. The mRNA levels of six genes (AdipoQ, Adipsin, Fat-Specific Protein 27 (FSP 27), lipoprotein lipase (LPL), retinol-binding protein (RBP) and phosphoenolpyruvate carboxykinase (PEPCK)) expressed by mature adipocytes were increased in TRalpha1-/-beta-/- compared with WT mice. An increased amount of fat (225% over WT) due to an increased number but unchanged mean size of adipocytes in the bone marrow of TRalpha1-/-beta-/- mice was revealed. Interestingly, the mRNA levels of the key regulator of osteoclastogenesis, receptor activator of NF-varkappab ligand (RANKL), were dramatically decreased in TRalpha1-/-beta-/- mice. In conclusion, TRalpha1-/-beta-/- mice demonstrated increased expression of adipocyte specific genes and an increased amount of bone marrow fat. Thus, these mice have increased adipogenesis in bone marrow associated with decreased trabecular bone mineral density (BMD). One may speculate that these effects either could be caused by an imbalance in the differentiation of the osteoblast and the adipocyte lineages at the expense of osteoblastogenesis, or by independent effects on the regulation of both osteoblastogenesis and adipogenesis.
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| 50. |
- Klingberg, Jenny, 1978, et al.
(författare)
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Leaf area measurements of urban woodlands, parks and trees in Gothenburg, Sweden
- 2015
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Ingår i: ICUC9 – 9 th International Conference on Urban Climate jointly with 12th Symposium on the Urban Environment. 20-24 July 2015, Toulouse, France.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Leaf area of urban vegetation is an important characteristic since it influences e.g. the urban climate through transpiratory cooling, air quality through air pollutant deposition and water management through rainfall interception. Measurements of leaf area are fundamental to accurately model these processes. Few studies have however presented leaf area measurements in the urban environment. The aim of this study was to i) describe the urban greenery based on measurements of leaf area index (LAI) of trees in different types of urban environments and ii) compare two different methods to measure LAI of urban trees. During the summer of 2014, LAI was measured in a central urban deciduous woodland, a suburban mixed forest, a central old park, a grove adjacent to a traffic route and in allotment gardens in Gothenburg, Sweden. In addition, single urban trees of seven common urban tree species in Gothenburg were measured (Acer platanoides, Aesculus hippocastanum, Betula pendula, Fagus sylvatica, Prunus serrulata, Quercus robur and Tilia europaea). Two different indirect methods were used; the LAI-2200 plant canopy analyzer (Li-cor Inc.) and hemispherical photography. The digital images were analyzed with Hemisfer (Schleppi, WSL). The canopy measurements were performed in a grid or cross with 8-32 points with fixed intervals. For single urban trees, 3-6 specimen of each species was measured. Average LAI of the measured urban parks and forests ranged between 2.6 and 4.8. A better way to characterize the different sites was to use cumulative density functions, which visualized the degree of heterogeneity. The old urban park had the largest LAI range (0 - 8.3). As a comparison, LAI ranged from 2.4 to 5.9 in the more homogenous urban woodland. LAI based on hemispherical photos was similar to the values received by the LAI-2200 plant canopy analyzer. Both methods had advantages and disadvantages. The urban environment offers challenges not present in forest canopies, such as interference of buildings. A combination of methods might be necessary for an environment as heterogeneous as the urban, with both single trees and forest canopies.
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