| 1. |
- Asplund, Annika, 1979-, et al.
(författare)
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One Standardized Differentiation Procedure Robustly Generates Homogenous Hepatocyte Cultures Displaying Metabolic Diversity from a Large Panel of Human Pluripotent Stem Cells
- 2016
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Ingår i: Stem Cell Reviews and Reports. - : Springer Science and Business Media LLC. - 1550-8943 .- 1558-6804. ; 12:1, s. 90-104
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Tidskriftsartikel (refereegranskat)abstract
- Human hepatocytes display substantial functional inter-individual variation regarding drug metabolizing functions. In order to investigate if this diversity is mirrored in hepatocytes derived from different human pluripotent stem cell (hPSC) lines, we evaluated 25 hPSC lines originating from 24 different donors for hepatic differentiation and functionality. Homogenous hepatocyte cultures could be derived from all hPSC lines using one standardized differentiation procedure. To the best of our knowledge this is the first report of a standardized hepatic differentiation procedure that is generally applicable across a large panel of hPSC lines without any adaptations to individual lines. Importantly, with regard to functional aspects, such as Cytochrome P450 activities, we observed that hepatocytes derived from different hPSC lines displayed inter-individual variation characteristic for primary hepatocytes obtained from different donors, while these activities were highly reproducible between repeated experiments using the same line. Taken together, these data demonstrate the emerging possibility to compile panels of hPSC-derived hepatocytes of particular phenotypes/genotypes relevant for drug metabolism and toxicity studies. Moreover, these findings are of significance for applications within the regenerative medicine field, since our stringent differentiation procedure allows the derivation of homogenous hepatocyte cultures from multiple donors which is a prerequisite for the realization of future personalized stem cell based therapies.
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| 2. |
- Larsson, Inga, 1953-, et al.
(författare)
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Patient participation in nursing care from a patient perspective: a Grounded Theory study.
- 2007
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Ingår i: Scandinavian journal of caring sciences. - : Wiley. - 0283-9318 .- 1471-6712. ; 21:3, s. 313-20
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Tidskriftsartikel (refereegranskat)abstract
- the study's rationale: Patients' active participation in their own care is expected to contribute to increased motivation to improve their own condition, better treatment results and greater satisfaction with received care. Knowledge of patients' understanding of participation is of great importance for nurses in their efforts to meet patient expectations and for quality of nursing care. AIM: The aim was to explore the meaning of patient participation in nursing care from a patient point of view. METHODOLOGICAL DESIGN AND JUSTIFICATION: Six tape-recorded focus group interviews with 26 Swedish informants described opinions on and experiences of patient participation. The informants consisted of patients in somatic inpatient care as well as discharged patients from such a setting. The Grounded Theory method was used and the data were analysed using constant comparative analysis. ETHICAL ISSUES AND APPROVAL: The ethics of scientific work was followed. Each study participant gave informed consent after verbal and written information. The Ethics Committee of Göteborg University approved the study. FINDINGS: The patients emphasised the importance of collaboration to improve participation. The core category, Insight through consideration, was generated from four inter-related categories: (i) Obliging atmosphere; (ii) Emotional response; (iii) Concordance; and (iv) Rights and their 15 subcategories. CONCLUSIONS: The meaning structures of patient participation in nursing care revealed from a patient point of view, seemed to mainly consist of not only external factors presented by the institutions -- by the professionals -- but also internal patient factors. The patients' view of participation should be considered to a greater degree in nursing practice and education, as should also further development of nursing care policy programmes, evaluation and quality assurance criteria. For further development, studies are needed in similar and other settings.
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| 3. |
- Risal, S., et al.
(författare)
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Prenatal androgen exposure causes a sexually dimorphic transgenerational increase in offspring susceptibility to anxiety disorders
- 2021
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Ingår i: Translational Psychiatry. - : Springer Science and Business Media LLC. - 2158-3188. ; 11:1
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Tidskriftsartikel (refereegranskat)abstract
- If and how obesity and elevated androgens in women with polycystic ovary syndrome (PCOS) affect their offspring's psychiatric health is unclear. Using data from Swedish population health registers, we showed that daughters of mothers with PCOS have a 78% increased risk of being diagnosed with anxiety disorders. We next generated a PCOS-like mouse (F-0) model induced by androgen exposure during late gestation, with or without diet-induced maternal obesity, and showed that the first generation (F-1) female offspring develop anxiety-like behavior, which is transgenerationally transmitted through the female germline into the third generation of female offspring (F-3) in the androgenized lineage. In contrast, following the male germline, F-3 male offspring (mF(3)) displayed anxiety-like behavior in the androgenized and the obese lineages. Using a targeted approach to search for molecular targets within the amygdala, we identified five differentially expressed genes involved in anxiety-like behavior in F-3 females in the androgenized lineage and eight genes in the obese lineage. In mF(3) male offspring, three genes were dysregulated in the obese lineage but none in the androgenized lineage. Finally, we performed in vitro fertilization (IVF) using a PCOS mouse model of continuous androgen exposure. We showed that the IVF generated F-1 and F-2 offspring in the female germline did not develop anxiety-like behavior, while the F-2 male offspring (mF(2)) in the male germline did. Our findings provide evidence that elevated maternal androgens in PCOS and maternal obesity may underlie the risk of a transgenerational transmission of anxiety disorders in children of women with PCOS.
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| 4. |
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| 5. |
- Svensson, A., et al.
(författare)
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European children's sugar intake on weekdays versus weekends: the IDEFICS study
- 2014
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Ingår i: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 0954-3007 .- 1476-5640. ; 68:7, s. 822-828
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: To compare the intake of total sugars, foods and drinks rich in added sugar, and energy in children on weekdays (Monday Thursday), Fridays and weekends. METHODS: Dietary intake (g, kJ, energy %) was assessed using a computerized 24-h recall method in a sample of 2- to 9-year-old children from Belgium, Cyprus, Estonia, Germany, Hungary, Italy, Spain and Sweden who were participating in the IDEFICS baseline study (2007-2008). Analyses were performed in 9497 children by selecting one 24-h recall per child (for comparison of weekdays vs weekends, and Fridays vs weekdays and weekends). Selected stratified analyses were performed by country and age group. RESULTS: Intake of total sugars exceeded 20 energy % in all countries but one. In the non-stratified analyses, the intakes of total sugars and foods and drinks rich in added sugar were found to be higher on weekends compared with weekdays (both P < 0.001), and intakes on Fridays were a mix between intakes on weekdays and weekends. Energy intake did not differ between weekdays and weekends. Results were somewhat heterogeneous, both across countries and age groups. CONCLUSIONS: High intake of sugar remains an important nutritional problem in children of many European countries. Interventions aiming to prevent this diet pattern may optimize their impact by targeting dietary habits on Fridays and weekends. Furthermore, when conducting dietary assessment in children, data from weekends and Fridays in combination with a selection of Mondays to Thursdays are needed to capture habitual sugar intake. Age and dietary cultures should also be considered in dietary intervention and assessment as effect modifications were seen for both age and country.
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