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- Olalde, I., et al.
(author)
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The Beaker phenomenon and the genomic transformation of northwest Europe
- 2018
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In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 555:7695, s. 190-196
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Journal article (peer-reviewed)abstract
- From around 2750 to 2500 bc, Bell Beaker pottery became widespread across western and central Europe, before it disappeared between 2200 and 1800 bc. The forces that propelled its expansion are a matter of long-standing debate, and there is support for both cultural diffusion and migration having a role in this process. Here we present genome-wide data from 400 Neolithic, Copper Age and Bronze Age Europeans, including 226 individuals associated with Beaker-complex artefacts. We detected limited genetic affinity between Beaker-complex-associated individuals from Iberia and central Europe, and thus exclude migration as an important mechanism of spread between these two regions. However, migration had a key role in the further dissemination of the Beaker complex. We document this phenomenon most clearly in Britain, where the spread of the Beaker complex introduced high levels of steppe-related ancestry and was associated with the replacement of approximately 90% of Britain's gene pool within a few hundred years, continuing the east-to-west expansion that had brought steppe-related ancestry into central and northern Europe over the previous centuries.
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- Andersson, L., et al.
(author)
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Inflammatory and coagulatory markers and exposure to different size fractions of particle mass, number and surface area air concentrations in the Swedish hard metal industry, in particular to cobalt
- 2021
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In: Biomarkers. - : Informa UK Limited. - 1354-750X .- 1366-5804. ; 26:6
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Journal article (peer-reviewed)abstract
- Purpose To study the relationship between inhalation of airborne particles and cobalt in the Swedish hard metal industry and markers of inflammation and coagulation in blood. Methods Personal sampling of inhalable cobalt and dust were performed for subjects in two Swedish hard metal plants. Stationary measurements were used to study concentrations of inhalable, respirable, and total dust and cobalt, PM10 and PM2.5, the particle surface area and the particle number concentrations. The inflammatory markers CC16, TNF, IL-6, IL-8, IL-10, SAA and CRP, and the coagulatory markers FVIII, vWF, fibrinogen, PAI-1 and D-dimer were measured. A complete sampling was performed on the second or third day of a working week following a work-free weekend, and additional sampling was taken on the fourth or fifth day. The mixed model analysis was used, including covariates. Results The average air concentrations of inhalable dust and cobalt were 0.11 mg/m(3) and 0.003 mg/m(3), respectively. For some mass-based exposure measures of cobalt and total dust, statistically significant increased levels of FVIII, vWF and CC16 were found. Conclusions The observed relationships between particle exposure and coagulatory biomarkers may indicate an increased risk of cardiovascular disease.
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- Dahlman, I, et al.
(author)
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Downregulation of electron transport chain genes in visceral adipose tissue in type 2 diabetes independent of obesity and possibly involving tumor necrosis factor-alpha
- 2006
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In: Diabetes. - : American Diabetes Association. - 0012-1797 .- 1939-327X. ; 55:6, s. 1792-1799
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Journal article (peer-reviewed)abstract
- Impaired oxidative phosphorylation is suggested as a factor behind insulin resistance of skeletal muscle in type 2 diabetes. The role of oxidative phosphorylation in adipose tissue was elucidated from results of Affymetrix gene profiling in subcutaneous and visceral adipose tissue of eight nonobese healthy, eight obese healthy, and eight obese type 2 diabetic women. Downregulation of several genes in the electron transport chain was the most prominent finding in visceral fat of type 2 diabetic women independent of obesity, but the gene pattern was distinct from that previously reported in skeletal muscle in type 2 diabetes. A similar but much weaker effect was observed in subcutaneous fat. Tumor necrosis factor-α (TNF-α) is a major factor behind inflammation and insulin resistance in adipose tissue. TNF-α treatment decreased mRNA expression of electron transport chain genes and also inhibited fatty acid oxidation when differentiated human preadipocytes were treated with the cytokine for 48 h. Thus, type 2 diabetes is associated with a tissue- and region-specific downregulation of oxidative phosphorylation genes that is independent of obesity and at least in part mediated by TNF-α, suggesting that impaired oxidative phosphorylation of visceral adipose tissue has pathogenic importance for development of type 2 diabetes.
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- Ioannou, Michael, et al.
(author)
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Sleep deprivation as treatment for depression: Systematic review and meta-analysis
- 2021
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In: Acta Psychiatrica Scandinavica. - : Wiley. - 0001-690X .- 1600-0447. ; 143:1, s. 22-35
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Research review (peer-reviewed)abstract
- Objective To systematically review evidence on the efficacy and safety of sleep deprivation (SD) as a treatment option for patients with unipolar or bipolar depression. Methods A systematic review according to PRISMA guidelines was conducted. The certainty of evidence was assessed using the GRADE approach. Controlled trials were included in efficacy analysis, case series for evaluating complications and qualitative studies for patients' experiences. Results Eight controlled studies (368 patients), one qualitative study and seven case series (825 patients) were included. One week after treatment start, SD combined with standard treatment did not reduce depressive symptoms compared with standard treatment (standardized mean difference, SMD = -0.29, [95% confidence interval, CI: -0.84 to 0.25], p = 0.29). When excluding a study in elderly patients in a post hoc analysis, the difference was statistically significant (SMD = -0.54 ([95% CI: -0.86 to -0.22], p < 0.001)) but it diminished two weeks after treatment start. No superiority of SD was found compared with antidepressants, but SD may be superior to exercise in certain settings. It is uncertain whether SD affects quality of sleep, quality of life, everyday functioning or length of stay. Apart from switch to mania (ranging between 2.7% and 10.7%), no other serious complications were reported. Conclusion Sleep deprivation has been studied in a wide range of settings resulting in divergent results for the short-term efficacy on depressive symptoms. Post hoc analyses indicated that there may be a significant but transient effect in certain populations. Further studies should focus on identifying subgroups of responders as well as examining feasibility in routine clinical care.
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- Lindblom, P, et al.
(author)
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Tesaglitazar, a dual PPAR-α/γ agonist, hamster carcinogenicity, investigative animal and clinical studies
- 2012
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In: Toxicologic pathology. - : SAGE Publications. - 1533-1601 .- 0192-6233. ; 40:1, s. 18-32
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Journal article (peer-reviewed)abstract
- Tesaglitazar was developed as a dual peroxisome proliferator–activated receptor (PPARα/γ). To support the clinical program, a hamster carcinogenicity study was performed. The only neoplastic findings possibly related to treatment with tesaglitazar were low incidences of hemangioma and hemangiosarcoma in the liver of male animals. A high-power, two-year investigative study with interim necropsies was performed to further elucidate these findings. Treatment with tesaglitazar resulted in changes typical for exaggerated PPARα pharmacology in rodents, such as hepatocellular hypertrophy and hepatocellular carcinoma, but not an increased frequency of hemangiosarcomas. At the highest dose level, there was an increased incidence of sinusoidal dilatation and hemangiomas. No increased endothelial cell (EC) proliferation was detected in vivo, which was confirmed by in vitro administration to ECs. Immunohistochemistry and gene expression analyses indicated increased cellular stress and vascular endothelial growth factor (VEGF) expression in the liver, which may have contributed to the sinusoidal dilatation. A two-fold increase in the level of circulating VEGF was detected in the hamster at all dose levels, whereas no effect on VEGF was observed in patients treated with tesaglitazar. In conclusion, investigations have demonstrated that tesaglitazar does not produce hemangiosarcomas in hamster despite a slight effect on vascular morphology in the liver.
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- Ofverholm, I. Ivanov, et al.
(author)
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PROGNOSTIC IMPACT OF IKZF1 DELETIONS IN PEDIATRIC B-CELL PRECURSOR ACUTE LYMPHOBLASTIC LEUKEMIA TREATED ACCORDING TO NOPHO PROTOCOLS - THE SWEDISH EXPERIENCE
- 2014
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In: Haematologica. - 0390-6078 .- 1592-8721. ; 99:Suppl 1, s. 9-9
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Journal article (other academic/artistic)abstract
- Recently, IKZF1 deletions have been shown to be associated notonly with the leukemogenic process but also to confer a poor prognosis in allrisk groups of B-cell precursor ALL. In a previous study, we used Multiplex Ligation-dependentProbe Amplification (MLPA) to investigate the presence ofIKZF1 deletions in bone marrow DNA from 116 children diagnosed with BCPALL in a single center and treated according to NOPHO protocols. Deletionswere detected in 16% of cases; both event free survival and overall survivalwere significantly reduced in the IKZF1-deleted group compared to the groupwith intact IKZF1.
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- Radestad, I, et al.
(author)
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Stillbirth and maternal well-being
- 1997
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In: Acta obstetricia et gynecologica Scandinavica. - : Wiley. - 0001-6349 .- 1600-0412. ; 76:9, s. 849-855
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- Sjogren, B, et al.
(author)
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Ischemic heart disease in female cleaners
- 2003
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In: International journal of occupational and environmental health. - : Informa UK Limited. - 1077-3525 .- 2049-3967. ; 9:2, s. 134-137
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- Sjogren, P., et al.
(author)
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Oral Care and Mortality in Older Adults with Pneumonia in Hospitals or Nursing Homes: Systematic Review and Meta-Analysis
- 2016
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In: Journal of the American Geriatrics Society. - : Wiley. - 0002-8614 .- 1532-5415. ; 64:10, s. 2109-2115
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Journal article (peer-reviewed)abstract
- The objectives of the study were to compare the effect of intensified oral care interventions given by dental or nursing personnel on mortality from healthcare-associated pneumonia (HAP) in elderly adults in hospitals or nursing homes with the effect of usual oral care. Systematic literature searches were conducted in PubMed, the Cochrane Library, and the Health Technology Assessment database of the National Health Service Centre for Reviews and Dissemination (August 2015). Randomized controlled trials (RCTs) were considered for inclusion. Data were extracted and risk of bias was assessed independently and agreed on in consensus meetings. Five RCTs, with some or major study limitations, fulfilled the inclusion criteria. Based on meta-analyses, oral care interventions given by dental personnel reduced mortality from HAP (risk ratio (RR) = 0.43, 95% confidence interval (CI) = 0.25-0.76, P = .003), whereas oral care interventions given by nursing personnel did not result in a statistically significant difference in mortality from HAP (RR = 1.20, 95% CI = 0.97-1.48, P = .09), in elderly adults in hospitals or nursing homes from usual oral care. Oral care interventions given by dental personnel may reduce mortality from HAP (low certainty of evidence, Grading of Recommendations Assessment, Development and Evaluation (GRADE) circle plus circle plus oo), whereas oral care interventions given by nursing personnel probably result in little or no difference from usual care (moderate certainty of evidence, GRADE circle plus circle plus circle plus o) in elderly adults in hospitals or nursing homes.
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