| 1. |
- Moberg, Christina, et al.
(författare)
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De unga gör helt rätt när de stämmer staten
- 2022
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Ingår i: Aftonbladet. - 1103-9000.
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- 1 620 forskare och lärare i forskarvärlden: Vi ställer oss bakom Auroras klimatkrav
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| 2. |
- Carlsson, Lena, et al.
(författare)
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Mode of growth determines differential expression of prostasomes in cultures of prostate cancer cell lines and opens for studies of prostasome gene expression
- 2006
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Ingår i: Upsala Journal of Medical Sciences. - : Uppsala Medical Society. - 0300-9734 .- 2000-1967. ; 111:3, s. 293-301
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Tidskriftsartikel (refereegranskat)abstract
- The exocrine secretion of the acinar gland cells in the human prostate consists of, among other components, a serous secretion and prostasomes. The prostasomes are functionally associated with both reproduction and prostate cancer development and are capable to raise autoantibodies at various pathologies. Therefore, we are trying to characterize prostasome antigens by analysing prostasome- producing cell lines of prostate cancers with the cDNA microarray technique. To obtain one state with synthesis of prostasomes and another state without synthesis, we checked whether the prostasome differentiation was influenced by the mode of growing the cells, that is, whether the cells had been growing on a solid support or on a flexible one. We studied the expression of prostasomes in the cell lines PC3, DU145 and LNCaP. We grew the cells with the following methods: Monocellular layers on microbeads, multicellular spheroids, single cells in suspension cultures, and xenotransplants in nude rats. The presence of prostasomes was examined by ELISA, immunocytochemistry or electron microscopy. The results showed that growing the cells on microbeads (solid support) produced a differentiation of prostasomes, while growing the cells in multicellular spheroids (flexible support) did not. Thus it should be possible to apply cDNA microarray analyses for characterizing the genes which are active at the cellular expression of prostasomes and then deduce the prostasome antigens.
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| 3. |
- Johansson, Karl-Axel, et al.
(författare)
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The quality assurance process for the ARTSCAN head and neck study - a practical interactive approach for QA in 3DCRT and IMRT.
- 2008
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Ingår i: Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology. - : Elsevier BV. - 0167-8140 .- 1879-0887. ; 87:2, s. 290-9
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Tidskriftsartikel (refereegranskat)abstract
- AIM: This paper describes the quality assurance (QA) work performed in the Swedish multicenter ARTSCAN (Accelerated RadioTherapy of Squamous cell CArcinomas in the head and Neck) trial to guarantee high quality in a multicenter study which involved modern radiotherapy such as 3DCRT or IMRT. MATERIALS AND METHODS: The study was closed in June 2006 with 750 randomised patients. Radiation therapy-related data for every patient were sent by each participating centre to the QA office where all trial data were reviewed, analysed and stored. In case of any deviation from the protocol, an interactive process was started between the QA office and the local responsible clinician and/or physicist to increase the compliance to the protocol for future randomised patients. Meetings and workshops were held on a regular basis for discussions on various trial-related issues and for the QA office to report on updated results. RESULTS AND DISCUSSION: This review covers the 734 patients out of a total of 750 who had entered the study. Deviations early in the study were corrected so that the overall compliance to the protocol was very high. There were only negligible variations in doses and dose distributions to target volumes for each specific site and stage. The quality of the treatments was high. Furthermore, an extensive database of treatment parameters was accumulated for future dose-volume vs. endpoint evaluations. CONCLUSIONS: This comprehensive QA programme increased the probability to draw firm conclusions from our study and may serve as a concept for QA work in future radiotherapy trials where comparatively small effects are searched for in a heterogeneous tumour population.
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| 4. |
- Kirvalidze, Mariam, et al.
(författare)
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Effectiveness of integrated person-centered interventions for older people's care : Review of Swedish experiences and experts' perspective
- 2024
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Ingår i: Journal of Internal Medicine. - : John Wiley & Sons. - 0954-6820 .- 1365-2796.
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Tidskriftsartikel (refereegranskat)abstract
- Older adults have multiple medical and social care needs, requiring a shift toward an integrated person-centered model of care. Our objective was to describe and summarize Swedish experiences of integrated person-centered care by reviewing studies published between 2000 and 2023, and to identify the main challenges and scientific gaps through expert discussions. Seventy-three publications were identified by searching MEDLINE and contacting experts. Interventions were categorized using two World Health Organization frameworks: (1) Integrated Care for Older People (ICOPE), and (2) Integrated People-Centered Health Services (IPCHS). The included 73 publications were derived from 31 unique and heterogeneous interventions pertaining mainly to the micro- and meso-levels. Among publications measuring mortality, 15% were effective. Subjective health outcomes showed improvement in 24% of publications, morbidity outcomes in 42%, disability outcomes in 48%, and service utilization outcomes in 58%. Workshop discussions in Stockholm (Sweden), March 2023, were recorded, transcribed, and summarized. Experts emphasized: (1) lack of rigorous evaluation methods, (2) need for participatory designs, (3) scarcity of macro-level interventions, and (4) importance of transitioning from person- to people-centered integrated care. These challenges could explain the unexpected weak beneficial effects of the interventions on health outcomes, whereas service utilization outcomes were more positively impacted. Finally, we derived a list of recommendations, including the need to engage care organizations in interventions from their inception and to leverage researchers' scientific expertise. Although this review provides a comprehensive snapshot of interventions in the context of Sweden, the findings offer transferable perspectives on the real-world challenges encountered in this field. image
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| 5. |
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| 6. |
- Lundgren, Pia, 1967, et al.
(författare)
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National cohort of infants born before 24 gestational weeks showed increased survival rates but no improvement in neonatal morbidity
- 2022
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 111:8, s. 1515-1525
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Tidskriftsartikel (refereegranskat)abstract
- Aim To describe survival and neonatal morbidities in infants born before 24 weeks of gestation during a 12-year period. Methods Data were retrieved from national registries and validated in medical files of infants born before 24 weeks of gestation 2007-2018 in Sweden. Temporal changes were evaluated. Results In 2007-2018, 282 live births were recorded at 22 weeks and 460 at 23 weeks of gestation. Survival to discharge from hospital of infants born alive at 22 and 23 weeks increased from 20% to 38% (p = 0.006) and from 45% to 67% (p < 0.001) respectively. Caesarean section increased from 12% to 22% (p = 0.038) for infants born at 22 weeks. Neonatal morbidity rates in infants alive at 40 weeks of postmenstrual age (n = 399) were unchanged except for an increase in necrotising enterocolitis from 0 to 33% (p = 0.017) in infants born at 22 weeks of gestation. Bronchopulmonary dysplasia was more common in boys than girls, 90% versus 82% (p = 0.044). The number of infants surviving to 40 weeks doubled over time. Conclusion Increased survival of infants born before 24 weeks of gestation resulted in increasing numbers of very immature infants with severe neonatal morbidities likely to have a negative impact on long-term outcome.
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| 7. |
- Lundh Snis, Ulrika, 1970-, et al.
(författare)
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Nordic Innovation Networks in Education : Dealing with Educational Challenges with Cross Boarder Collaboration and User Driven Design
- 2012
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Ingår i: Uddevalla Symposium 2012<em> </em>. - 9789197794343 ; , s. 553-571
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Konferensbidrag (refereegranskat)abstract
- This is an EU-funded project related to cross boarder collaboration for educational purposes supported by information and communication technologies between Danish, Norwegian and Swedish schools. The project started in 2011 and extends to 2014 so this empirically dominated paper reports on early findings related to cross-border collaboration challenges. The aim of the project is to develop innovative cross-border teaching models by the means of user-driven, practice-based co-design processes between practitioners and researchers. In the first year, 18 classes from 13 schools in Denmark, Norway and Sweden in the Öresund-Kattegatt-Skagerack region participated. Organized in so called Nordic class-match groups (consisting of students and teachers from one class in each country) new cross-border teaching models are co-created, tested and evaluated in an iterative process. Since teaching models are subject dependent, the project develop teaching models in several subject domains, i.e. math, language, science and social studies / history. Heretofore findings show, however, that organizational and technical issues have superseded and squeezed out subject-oriented discussions due to surprisingly many practical issues that needed to be handled first. We have identified three major thresholds to overcome. The first is related to technical difficulties in schools when diverse IT systems are to be synchronized. The second threshold concerns scheduling coordination difficulties in order to allow synchronous cross boarder collaboration. The third threshold concerns linguistic and communication difficulties rooted in participants communicating in their respective Nordic language. Being able to communicate within Nordic languages are explicit learning goals in all three schools systems, and therefore part of the project aim and consequently all participants are expected to use their native languages when communicating. The next phase of the project is therefore to find solutions to these technical, organizational and linguistic barriers, and already now we see some barrier breaking models taking shape in the active network of Nordic teachers, students, school leaders, IT support teams and researchers.
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| 8. |
- Moll, Guido, et al.
(författare)
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Mesenchymal Stromal Cells Engage Complement and Complement Receptor Bearing Innate Effector Cells to Modulate Immune Responses (Open Access)
- 2011
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 6:7, s. e21703-
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Tidskriftsartikel (refereegranskat)abstract
- Infusion of human third-party mesenchymal stromal cells (MSCs) appears to be a promising therapy for acute graft-versus-host disease (aGvHD). To date, little is known about how MSCs interact with the body's innate immune system after clinical infusion. This study shows, that exposure of MSCs to blood type ABO-matched human blood activates the complement system, which triggers complement-mediated lymphoid and myeloid effector cell activation in blood. We found deposition of complement component C3-derived fragments iC3b and C3dg on MSCs and fluid-phase generation of the chemotactic anaphylatoxins C3a and C5a. MSCs bound low amounts of immunoglobulins and lacked expression of complement regulatory proteins MCP (CD46) and DAF (CD55), but were protected from complement lysis via expression of protectin (CD59). Cell-surface-opsonization and anaphylatoxin-formation triggered complement receptor 3 (CD11b/CD18)-mediated effector cell activation in blood. The complement-activating properties of individual MSCs were furthermore correlated with their potency to inhibit PBMC-proliferation in vitro, and both effector cell activation and the immunosuppressive effect could be blocked either by using complement inhibitor Compstatin or by depletion of CD14/CD11b-high myeloid effector cells from mixed lymphocyte reactions. Our study demonstrates for the first time a major role of the complement system in governing the immunomodulatory activity of MSCs and elucidates how complement activation mediates the interaction with other immune cells.
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| 9. |
- Morsing, Eva, et al.
(författare)
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Neurodevelopmental disorders and somatic diagnoses in a national cohort of children born before 24 weeks of gestation
- 2022
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Ingår i: Acta Paediatrica, International Journal of Paediatrics. - : Wiley. - 0803-5253 .- 1651-2227. ; 111:6, s. 1167-1175
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Tidskriftsartikel (refereegranskat)abstract
- Aim: This study investigated childhood diagnoses in children born extremely preterm before 24 weeks of gestation. Methods: Diagnoses of neurodevelopmental disorders and selected somatic diagnoses were retrospectively retrieved from national Swedish registries for children born before 24 weeks from 2007 to 2018. Their individual medical files were also examined. Results: We studied 383 children born at a median of 23.3 (range 21.9–23.9) weeks, with a median birthweight of 565 (range 340–874) grams. Three-quarters (75%) had neurodevelopmental disorders, including speech disorders (52%), intellectual disabilities (40%), attention deficit hyperactivity disorder (30%), autism spectrum disorders (24%), visual impairment (22%), cerebral palsy (17%), epilepsy (10%) and hearing impairment (5%). More boys than girls born at 23 weeks had intellectual disabilities (45% vs. 27%, p < 0.01) and visual impairment (25% vs. 14%, p < 0.01). Just over half of the cohort (55%) received habilitation care. The majority (88%) had somatic diagnoses, including asthma (63%) and failure to thrive/short stature (39%). Conclusion: Most children born before 24 weeks had neurodevelopmental disorders and/or additional somatic diagnoses in childhood and were referred to habilitation services. Clinicians should be aware of the multiple health and developmental problems affecting these children. Resources are needed to identify their long-term support needs at an early stage.
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| 10. |
- Morsing, Eva, et al.
(författare)
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[Survival and prematurity-related neonatal diagnoses among children born before 24 gestational weeks in Sweden 2007-2018]. : Allt fler barn födda före vecka 24 överlever, men sjukligheten är hög.
- 2023
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Ingår i: Lakartidningen. - 1652-7518. ; 120:10-11
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Tidskriftsartikel (refereegranskat)abstract
- Children born before 24 gestational weeks had high neonatal morbidity and a majority had one or more neurodevelopmental disorders in addition to somatic diagnoses in childhood. Active Swedish perinatal care of infants with gestational age <24 weeks has resulted in a survival rate of more than 50 percent. Resuscitation of these immature infants is controversial, and some countries offer comfort care only. In a retrospective review of medical files and registries of 399 Swedish infants born before 24 gestational weeks, a majority had severe prematurity-related neonatal diagnoses. In childhood (2-13 years), 75 percent had at least one neurodevelopmental disorder and 88 percent had one or more prematurity-related somatic diagnosis (permanent or transient) that was likely to affect their quality of life. Long-term consequences for surviving infants should be considered in general recommendations as well as in parental information.
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| 11. |
- Pinay, Gilles, et al.
(författare)
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Patterns of denitrification rates in European alluvial soils under various hydrological regimes
- 2007
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Ingår i: Freshwater Biology. - 0046-5070 .- 1365-2427. - 0046-5070 ; 52:2, s. 252-266
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Tidskriftsartikel (refereegranskat)abstract
- 1. Denitrification in floodplain soils is one of the main biological processes emitting and reducing nitrous oxide, a greenhouse gas, and the main process responsible for the buffering capacity of riparian zones against diffuse nitrate pollution. 2. The aim of this study was to measure denitrification rates under a wide range of current climatic conditions and hydrological regimes in Europe (from latitude 64 degrees N to latitude 42 degrees N and from longitude 2 degrees W to longitude 25 degrees E), in order to determine the response patterns of this microbial process under different climatic and hydrological conditions, and to identify denitrification proxies robust enough to be used at the European scale. 3. Denitrification activity was significant in all the floodplain soils studied whatever the latitude. However, we found an increase in rates of an order of magnitude from high to mid latitudes. Maximum rates (above 30 g N m(-2) month(-1)) were measured in the maritime conditions of the Trent floodplain. These rates are similar to mineralisation rates measured in alluvial soils and of the same order of magnitude as the amount of N stored in herbaceous plants in alluvial soils. 4. We used Multivariate Adaptative Regression Splines to relate the response variable denitrification with five relevant predictors, namely soil moisture, temperature, silt plus clay, nitrate content and herbaceous plant biomass. 5. Soil moisture, temperature, and nitrate were the three main control variables of microbial denitrification in alluvial soils in decreasing order of importance. 6. The model developed for denitrification with interaction effects outperformed a pure additive model. Soil moisture was involved in all interactions, emphasising its importance in predicting denitrification. 7. These results are discussed in the context of scenarios for future change in European hydrological regimes.
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| 12. |
- Winslott Hiselius, Lena, et al.
(författare)
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En rättvis omställning av transportsystemet : - En analys av de sociala effekterna av styrmedel för minskade klimatutsläpp
- 2020
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Dagens planeringssystem är uppdelat på många aktörer och har traditionellt drivits av fokus på prognoser, kostnadseffektivitet, och samhällsekonomisk lönsamhet. Klimatutmaningen ställer delvis helt nya krav på planeringen, med ett fokus på att utveckla styrmedel som på ett kostnadseffektivt sätt leder till de utsläppsminskningar som behövs. I detta behövs en större uppmärksamhet på de sociala effekterna av styrmedlen, liksom på rättviseaspekter. Detta innebär att vi behöver en ökad känslighet för hur styrmedel påverkar olika grupper av människor, baserat på t.ex. kön, ålder, inkomst och geografi. I projektet vidareutvecklas och testas två metoder för att utvärdera strategier för fossilfria transporter. Dels en systematisk ramverksanalys av styrmedel utifrån sociala effekter och fördelningseffekter, dels Mobility labs där en informerad dialog förs i fokusgruppsform med de som berörs av omställningen med syfte att tillsammans utforma styrmedelspaket som säkrar en hållbar tillgänglighet i det fossilfria samhället. Mobility labs har i projektet testats i Örebro, Odensbacken och Hällefors. Resultatet indikerar att det i dagens debatt saknas tydliga visioner för fossilfria transporter på landsbygden samt att debatten visar på bristande förståelse för hur en omställning kommer att påverka boende där. Resultatet indikerar vidare att det behövs kompletterande strategier för att se till att människor på landsbygden inte lämnas utanför omställningen och för att öka legitimiteten för styrmedel och åtgärder. Några exempel kan vara en förändrad roll för kollektivtrafiken, så att den inte bara syftar till att öka volymerna i starka stråk utan även bidrar till att alla har en tillräckligt god service, samt styrmedel som bidrar till att kompensera för ökade kostnader med bil på landsbygd.
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| 13. |
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| 14. |
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| 15. |
- Andersson, C, et al.
(författare)
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The three ZNT8 autoantibody variants together improve the diagnostic sensitivity of childhood and adolescent type 1 diabetes
- 2011
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Ingår i: Autoimmunity. - : Taylor & Francis. - 0891-6934 .- 1607-842X. ; 44:5, s. 394-405
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Tidskriftsartikel (refereegranskat)abstract
- Aims: We tested whether autoantibodies to all three ZnT8RWQ variants, GAD65, insulinoma-associated protein 2 (IA-2), insulin and autoantibodies to islet cell cytoplasm (ICA) in combination with human leukocyte antigen (HLA) would improve the diagnostic sensitivity of childhood type 1 diabetes by detecting the children who otherwise would have been autoantibody-negative.Methods: A total of 686 patients diagnosed in 1996–2005 in Skåne were analyzed for all the seven autoantibodies [arginin 325 zinc transporter 8 autoantibody (ZnT8RA), tryptophan 325 zinc transporter 8 autoantibody (ZnT8WA), glutamine 325 Zinc transporter 8 autoantibody (ZnT8QA), autoantibodies to glutamic acid decarboxylase (GADA), Autoantibodies to islet-antigen-2 (IA-2A), insulin autoantibodies (IAA) and ICA] in addition to HLA-DQ genotypes.Results: Zinc transporter 8 autoantibody to either one or all three amino acid variants at position 325 (ZnT8RWQA) was found in 65% (449/686) of the patients. The frequency was independent of age at diagnosis. The ZnT8RWQA reduced the frequency of autoantibody-negative patients from 7.5 to 5.4%—a reduction by 28%. Only 2 of 108 (2%) patients who are below 5 years of age had no autoantibody at diagnosis. Diagnosis without any islet autoantibody increased with increasing age at onset. DQA1-B1*X-0604 was associated with both ZnT8RA (p = 0.002) and ZnT8WA (p = 0.01) but not with ZnT8QA (p = 0.07). Kappa agreement analysis showed moderate (>0.40) to fair (>0.20) agreement between pairs of autoantibodies for all combinations of GADA, IA-2A, ZnT8RWQA and ICA but only slight ( < 0.19) agreement for any combination with IAA.Conclusions: This study revealed that (1) the ZnT8RWQA was common, independent of age; (2) multiple autoantibodies were common among the young; (3) DQA1-B1*X-0604 increased the risk for ZnT8RA and ZnT8WA; (4) agreement between autoantibody pairs was common for all combinations except IAA. These results suggest that ZnT8RWQA is a necessary complement to the classification and prediction of childhood type 1 diabetes as well as to randomize the subjects in the prevention and intervention of clinical trials.
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| 16. |
- Babiker, Adil A., et al.
(författare)
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Transfer of functional prostasomal CD59 of metastatic prostatic cancer cell origin protects cells against complement attck
- 2005
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Ingår i: The Prostate. - : Wiley. - 0270-4137 .- 1097-0045. ; 62:2, s. 105-114
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Prostasomes are secretory granules produced, stored, and released, by the glandular epithelial cells of the prostate. They express the glycosylphosphatidylinositol (GPI)-anchored complement regulatory protein CD59, which has been shown to be transferred to spermatozoa and erythrocytes.METHODS: The CD59 content of prostasomes isolated from seminal fluid and malignant prostate cells (PC-3, DU145, and LNCaP) and the transfer of prostasomal CD59 to rabbit erythrocytes (RE) and to PIPLC-treated and unmanipulated cancer cells were investigated using FACS. All prostasomes were also incubated with RE and tested in a hemolytic assay.RESULTS: Prostasomes from cancer cells had higher expression of CD59 than those of normal cells. Prostasomal CD59 of different origin could be transferred to RE, malignant cell lines stripped of CD59 by PIPLC, or unmanipulated LNCaP cells. Malignant cell prostasomes had an increased ability to inhibit complement-mediated lysis compared to those from non-malignant cells.CONCLUSIONS: These results point to a novel mechanism by which prostasomes can protect prostatic malignant cells from complement attack.
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| 17. |
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| 18. |
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| 19. |
- Bjursten, Eva-Lena, et al.
(författare)
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Computer programming in primary schools : Swedish Technology Teachers’ pedagogical strategies
- 2022
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Ingår i: International journal of technology and design education. - : Springer Nature. - 0957-7572 .- 1573-1804.
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Tidskriftsartikel (refereegranskat)abstract
- There is a recognized need for research on how to teach computer programming in primary schools in Sweden grades 4–6 (10–12-year-old pupils). Studies of teaching show the importance of teachers’ knowledge of content and pedagogy and how these two parts affect each other (i.e. pedagogical content knowledge [PCK]). Most teachers in Sweden have little or no formal education in computer programming, the revised Swedish curriculum requires them to teach it. The aim of this study is to explore the pedagogical strategies teachers use when they teach computer programming. Semi-structured interviews were conducted with 14 participants, comprising 12 teachers and 2 teacher trainers. The data were analysed deductively with themes from previous research. The results show that teachers use eight pedagogical strategies, including three new strategies that have been constructed inductively: do-it-yourself, gamification and progression. These eight pedagogical strategies are mostly general, and teachers may be considered regressed experts, as they lack formal training in computer programming. They facilitate learning in a general sense, but, compared to other subjects, their PCK in computer programming is problematized. In-service teacher training is needed to increase content knowledge, thus enabling to develop PCK in computer programming. It would also be fruitful to deepen our knowledge regarding pedagogical strategies in the PCK domain of computer programming.
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| 20. |
- Björ, Bodil, et al.
(författare)
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Fifty-year-follow-up of mortality among a cohort of iron-ore miners in Sweden, with specific reference to myocardial infarction mortality
- 2009
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Ingår i: Occupational and Environmental Medicine. - London : BMJ Publishing Group. - 1351-0711 .- 1470-7926. ; 66:4, s. 264-268
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: This study investigates both general mortality and mortality from myocardial infarction among men employed in iron-ore mines in Sweden.Methods: The mortality of employees (surface and underground workers) at the iron-ore mines in Malmberget and Kiruna, Sweden was investigated. The study cohort comprised men who had been employed for at least 1 year between 1923 and 1996. The causes of death were obtained from the national cause of death register from 1952 to 2001. Indirect standardised mortality ratios (SMR) were calculated for four main causes. Mortality specifically from myocardial infarction was also analysed.Results: 4504 deaths in the cohort gave an SMR for total mortality of 1.05 (95% CI 1.02 to 1.09). Mortality was significantly higher for lung cancer (SMR 1.73, 95% CI 1.52 to 1.97). There was an increased risk of injuries and poisonings (SMR 1.34, 95% CI 1.24 to 1.46) and respiratory diseases (SMR 1.14, 95% CI 1.00 to 1.28). There were 1477 cases of myocardial infarction, resulting in an SMR of 1.12 (95% CI 1.07 to 1.18). SMR was higher (1.35, 95% CI 1.22 to 1.50) for men aged ≤60 years than for those >60 years of age (1.06, 95% CI 1.00 to 1.13).Conclusions: Mortality from myocardial infarction was higher than expected. There was also an increased risk of death from injuries and poisonings, lung cancer and respiratory diseases, as well as higher general mortality. Our findings support the results of previous studies that there is an association between working in the mining industry and adverse health outcomes.
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| 21. |
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| 22. |
- Christiansson, Lena, et al.
(författare)
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Expanding environmental Perspectives
- 1994
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Ingår i: Expanding environmental perspectives : lessons of the past, prospects for the future. - 917966279X ; , s. 119-142
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 23. |
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| 24. |
- Duan, Rui-Dong, et al.
(författare)
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Human meconium contains significant amounts of alkaline sphingomyelinase, neutral ceramidase, and sphingolipid metabolites.
- 2007
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Ingår i: Pediatric Research. - : Springer Science and Business Media LLC. - 1530-0447 .- 0031-3998. ; 61:1, s. 61-66
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Tidskriftsartikel (refereegranskat)abstract
- Intestinal alkaline sphingomyelinase (Alk-SMase) and neutral ceramidase may catalyze the hydrolysis of endogenous sphin-gomyelin (SM) and milk SM in human-milk fed infants. The enzymes generate sphingolipid metabolites that may influence gut maturation. Alk-SMase also inactivates platelet-activating factor (PAF) that is involved in the pathogenesis of necrotizing enterocolitis (NEC). We examined whether the two enzymes are expressed in both preterm and term infants and analyzed Alk-SMase, neutral ceramidase, SM, and sphingolipid metabolites in meconium. Meconium was collected from 46 preterm (gestational ages 23-36 wk) and 38 term infants (gestational ages 37-42 wk) and analyzed for Alk-SMase using C-14-choline-labeled SM and for neutral ceramidase using C-14-octanoyl-sphingosine as substrates. Molecular species of SM, ceramide, and sphingosine were analyzed by high-performance liquid chromatography mass spectroscopy. Meconium contained significant levels of Alk-SMase and ceramidase at all gestational ages. It also contained 16-24 carbon molecular species of SM, palmitoyl-and stearoyl-sphingosine, and sphingosine. There were positive correlations between levels of SM and ceramide and between ceramide and sphingosine levels. In conclusion, Alk-SMase and ceramidase are expressed in the gut of both preterm and term newborn infants and may generate bioactive sphingolipid messengers.
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| 25. |
- Ekström, Anette C., 1958-, et al.
(författare)
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Nurses challenges to support hospitalized patients regarding sexual-health issues
- 2016
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Ingår i: Journal of Nursing & Care. - : OMICS Publishing Group. - 2167-1168. ; 5:3
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Tidskriftsartikel (refereegranskat)abstract
- Background: The approach to nursing should be characterized by a holistic view of the human being which includes sexual health. From a nursing perspective, it is therefore of most importance to have a dialogue about factors associated with sexual health also among hospitalized patients. However, to our knowledge there is a lack of qualitative studies regarding nurses attitudes about dialogue with patients about sexual health.Objective: To investigate nurses attitudes towards dialogue with hospitalized patients about sexual health.Methods: A qualitative method was used and interviews were conducted which then were analyzed using a qualitative content analysis. Eleven registered nurses were included, the inclusion criteria was: at least one year of experience as a nurse and working on a medical or surgical ward in a hospital in the southwest of Sweden. The participants were in the ages 25-65 and had worked as nurses between 2 and 30 years. Nine of the participants were women. The data were collected during 2011.Results: The nurses experiences of and reflections on dialogue with patients about sexual health were presented as a single main theme: Nurses challenges to support hospitalized patients with sexual health issues. This theme had three categories: Feeling uncomfortable, Feeling inadequate and Task-oriented care with related subcategories respectively.Conclusions: Nurses attitudes towards their dialogues about sexual health with hospitalized patients were less challenging if they were initiated by the patients or if the patients were men with medical causes related to sexual health. Lack of knowledge and support from colleagues became reasons why nurses felt inadequate about discussing sexual health with their patients.
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