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- Wall, S. L., et al.
(författare)
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Who tells the story of burns in low-and-middle income countries? - A bibliometric study.
- 2023
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Ingår i: Burns. - : Elsevier. - 0305-4179 .- 1879-1409. ; 49:4, s. 854-860
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Tidskriftsartikel (refereegranskat)abstract
- Low- and middle-income countries (LMICs) remain drastically underrepresented in health research, with African countries producing less than 1% of the global output. This work investigates authorship patterns of publications on burns in LMICs. Original research studies addressing burn injuries in LMICs and published between 1st January 2015 and 31st December 2020 were included in the review. Descriptive statistics were performed for country affiliations of authors, World Bank Country Income Groups, WHO group, study-focus and country studied. Of the 458 results, 426 studies met the inclusion criteria. Nearly a quarter of papers on burns in LMICs had both first and senior authors from high-income countries (HICs, n = 95, 24.4%), more than half of the papers had both first and senior authors from upper middle- income countries (upper MICs, n = 222, 57.2%), while less than 1% (n = 3) had first and senior authors exclusively from lower-income countries (LICs). Eleven percent (n = 41/388) of all papers were written without either first nor senior author being from the country studied, and 17 of them (41%) had both first and senior authors from the USA. Twenty-five (6%) of the papers had the first author and not the senior author from the country of focus, while six (2%) had the senior and not the first author from the country of interest. To overcome global health challenges such as burns, locally led research is imperative. The maximum benefit of HIC-LMIC collaborations is achieved when LMICs play an active role in leading the research. When LMICs direct the research being conducted in their country, the harm of inherently inequitable relationships is minimized.
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- Walton, Esther, et al.
(författare)
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Brain Structure in Acutely Underweight and Partially Weight-Restored Individuals With Anorexia Nervosa : A Coordinated Analysis by the ENIGMA Eating Disorders Working Group
- 2022
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Ingår i: Biological Psychiatry. - : Elsevier. - 0006-3223 .- 1873-2402. ; 92:9, s. 730-738
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The pattern of structural brain abnormalities in anorexia nervosa (AN) is still not well understood. While several studies report substantial deficits in gray matter volume and cortical thickness in acutely underweight patients, others find no differences, or even increases in patients compared with healthy control subjects. Recent weight regain before scanning may explain some of this heterogeneity. To clarify the extent, magnitude, and de-pendencies of gray matter changes in AN, we conducted a prospective, coordinated meta-analysis of multicenter neuroimaging data.METHODS: We analyzed T1-weighted structural magnetic resonance imaging scans assessed with standardized methods from 685 female patients with AN and 963 female healthy control subjects across 22 sites worldwide. In addition to a case-control comparison, we conducted a 3-group analysis comparing healthy control subjects with acutely underweight AN patients (n = 466) and partially weight-restored patients in treatment (n = 251).RESULTS: In AN, reductions in cortical thickness, subcortical volumes, and, to a lesser extent, cortical surface area were sizable (Cohen's d up to 0.95), widespread, and colocalized with hub regions. Highlighting the effects of un-dernutrition, these deficits were associated with lower body mass index in the AN sample and were less pronounced in partially weight-restored patients.CONCLUSIONS: The effect sizes observed for cortical thickness deficits in acute AN are the largest of any psychiatric disorder investigated in the ENIGMA (Enhancing Neuro Imaging Genetics through Meta Analysis) Consortium to date. These results confirm the importance of considering weight loss and renutrition in biomedical research on AN and underscore the importance of treatment engagement to prevent potentially long-lasting structural brain changes in this population.
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- Birgisdottir, BT, et al.
(författare)
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Reference values for Lactate Pro 2™ in fetal blood sampling during labor: a cross-sectional study
- 2017
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Ingår i: Journal of perinatal medicine. - : Walter de Gruyter GmbH. - 1619-3997 .- 0300-5577. ; 45:3, s. 321-325
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Tidskriftsartikel (refereegranskat)abstract
- Objective:Lactate ProStudy design:A cross-sectional study was conducted at a university hospital in Sweden. A total of 113 laboring women with fetal heart rate abnormalities on cardiotocography (CTG) had FBS carried out. Lactate concentration was measured bedside with both LP1 and LP2 from the same blood sample capillary. A linear regression model was constructed to retrieve a conversion equation to convert LP2 values to LP1 values.Results:LP2 measured higher values than LP1 in all analyses. We found that 4.2 mmol/L with LP1 corresponded to 6.4 mmol/L with LP2. Likewise, 4.8 mmol/L with LP1 corresponded to 7.3 mmol/L with LP2. The correlation between the analyses was excellent (Spearman’s rank correlation, r=0.97).Conclusion:We recommend the following guidelines when interpreting lactate concentration in FBS with LP2: <6.4 mmol/L to be interpreted as normal, 6.4–7.3 mmol/L as preacidemia indicating a follow-up FBS within 20–30 min, and >7.3 mmol/L as acidemia indicating intervention.
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- Eriksson, S, et al.
(författare)
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Complex formation of myrosinase isoenzymes in Brassica napus seeds are dependent on the presence of myrosinase binding proteins
- 2002
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Ingår i: Plant Physiology. - 1532-2548. ; 129:4, s. 1592-1599
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Tidskriftsartikel (refereegranskat)abstract
- The enzyme myrosinase (EC 3.2.3.1) degrades the secondary compounds glucosinolates upon wounding and serves as a defense to generalist pests in Capparales. Certain myrosinases are present in complexes together with other proteins such as myrosinase-binding proteins (MBP) in extracts of oilseed rape (Brassica napus) seeds. Immunhistochemical analysis of wild-type seeds showed that MBPs were present in most cells but not in the myrosin cells, indicating that the complex formation observed in extracts is initiated upon tissue disruption. To study the role of MBP in complex formation and defense, oilseed rape antisense plants lacking the seed MBPs were produced. Western blotting and immunohistochemical staining confirmed depletion of MBP in the transgenic seeds. The exclusive expression of myrosinase in idioblasts (myrosin cells) of the seed was not affected by the down-regulation of MBP. Using size-exclusion chromatography, we have shown that myrosinases with subunit molecular masses of 62 to 70 kD were present as free dimers from the antisense seed extract, whereas in the wild type, they formed complexes. In accordance with this, MBPs are necessary for myrosinase complex formation of the 62- to 70-kD myrosinases. The product formed from sinalbin hydrolysis by myrosinase was the same whether MBP was present or not. The performance of a common beetle generalist (Tenebrio molitor) fed with seeds, herbivory by flea beetles (Phyllotreta undulata) on cotyledons, or growth rate of the Brassica fungal pathogens Alternaria brassicae or Lepthosphaeria maculans in the presence of seed extracts were not affected by the down-regulation of MBP, leaving the physiological function of this protein family open.
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- Graner, Michael W., et al.
(författare)
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Splice variants of the Drosophila PS2 integrins differentially interact with RGD-containing fragments of the extracellular proteins tiggrin, Ten-m, and D-laminin α2
- 1998
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Ingår i: Journal of Biological Chemistry. - : Elsevier BV. - 0021-9258. ; 273:29, s. 18235-18241
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Tidskriftsartikel (refereegranskat)abstract
- Two new potential ligands of the Drosophila PS2 integrins have been characterized by functional interaction in cell culture. These potential ligands are a new Drosophila laminin α2 chain encoded by the wing blister locus and Ten-m, an extracellular protein known to be involved in embryonic pattern formation. As with previously identified PS2 ligands, both contain RGD sequences, and RGD-containing fragments of these two proteins (DLAM-RGD and TENM-RGD) can support PS2 integrin-mediated cell spreading. In all cases, this spreading is inhibited specifically by short RGD-containing peptides. As previously found for the PS2 ligand tiggrin (and the tiggrin fragment TIG- RGD), TENM-RGD induces maximal spreading of cells expressing integrin containing the α(PS2C) splice variant. This is in contrast to DLAM-RGD, which is the first Drosophila polypeptide shown to interact preferentially with cells expressing the α(PS2) (M8) splice variant. The β(PS) integrin subunit also varies in the presumed ligand binding region as a result of alternative splicing. For TIG-RGD and TENM-RGD, the β splice variant has little effect, but for DLAM-RGD, maximal cell spreading is supported only by the β(PS4A) form of the protein. Thus, the diversity in PS2 integrins due to splicing variations, in combination with diversity of matrix ligands, can greatly enhance the functional complexity of PS2-ligand interactions in the developing animal. The data also suggest that the Splice variants may alter regions of the subunits that are directly involved in ligand interactions, and this is discussed with respect to models of integrin structure.
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| 8. |
- Graner, Michael W., et al.
(författare)
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Splice variants of the Drosophila PS2 integrins differentially interact with the extracellular ligands Tiggrin, D-laminin alpha 2 and Ten-m.
- 1998
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Ingår i: Journal of Biological Chemistry. - 1083-351X. ; 273:29, s. 18235-18241
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Tidskriftsartikel (refereegranskat)abstract
- Two new potential ligands of theDrosophila PS2 integrins have been characterized by functional interaction in cell culture. These potential ligands are a new Drosophila laminin α2 chain encoded by the wing blister locus and Ten-m, an extracellular protein known to be involved in embryonic pattern formation. As with previously identified PS2 ligands, both contain RGD sequences, and RGD-containing fragments of these two proteins (DLAM-RGD and TENM-RGD) can support PS2 integrin-mediated cell spreading. In all cases, this spreading is inhibited specifically by short RGD-containing peptides. As previously found for the PS2 ligand tiggrin (and the tiggrin fragment TIG-RGD), TENM-RGD induces maximal spreading of cells expressing integrin containing the αPS2C splice variant. This is in contrast to DLAM-RGD, which is the first Drosophila polypeptide shown to interact preferentially with cells expressing the αPS2 m8 splice variant. The βPS integrin subunit also varies in the presumed ligand binding region as a result of alternative splicing. For TIG-RGD and TENM-RGD, the β splice variant has little effect, but for DLAM-RGD, maximal cell spreading is supported only by the βPS4A form of the protein. Thus, the diversity in PS2 integrins due to splicing variations, in combination with diversity of matrix ligands, can greatly enhance the functional complexity of PS2-ligand interactions in the developing animal. The data also suggest that the splice variants may alter regions of the subunits that are directly involved in ligand interactions, and this is discussed with respect to models of integrin structure.
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| 9. |
- Graner, Sophie, et al.
(författare)
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Pregnant women's perception on signs and symptoms during pregnancy and maternal health care in a rural low-resource setting
- 2013
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Ingår i: Acta Obstetricia Et Gynecologica Scandinavica. - : Wiley. - 0001-6349 .- 1600-0412. ; 92:9, s. 1094-1100
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Tidskriftsartikel (refereegranskat)abstract
- Objective. Women's understanding of pregnancy and antenatal care is influenced by their cultural context. In low-income settings women may have limited influence over their reproductive health, including when to seek health care. Awareness of signs of pregnancy complications is essential for timely care. The use of antenatal care services in Vietnam has been studied with quantitative methods but there are few qualitative studies on the perceptions of pregnancy and maternal health care among Vietnamese women. Design. Four focus group discussions with pregnant women were performed. Setting. The study was conducted in a rural district in northern Vietnam. Population. Pregnant women in the last trimester. Method. Manifest and latent content analysis. Result. The latent theme that emerged was a need for "securing pregnancy during its normal course and at deviation", consisting of the main categories "ensuring a healthy pregnancy" and "separating the normal from the abnormal". Conclusion. This qualitative study of pregnant women in rural Vietnam indicates how women create a strategy to promote a healthy pregnancy through lifestyle adjustments, gathering of information, and seeking timely medical care. Insight into pregnancy-related conditions was sought from various sources and influenced both by local traditions and modern medical knowledge. Public knowledge about different symptoms during pregnancy and a high confidence in maternal health care are the most likely contributing factors to the relatively good maternal health status in Vietnam.
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