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Träfflista för sökning "WFRF:(Bergström Göran 1964) srt2:(2010-2014)"

Sökning: WFRF:(Bergström Göran 1964) > (2010-2014)

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1.
  • Li, Lu, 1964, et al. (författare)
  • The Importance of GLUT3 for De Novo Lipogenesis in Hypoxia-Induced Lipid Loading of Human Macrophages
  • 2012
  • Ingår i: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 7:8
  • Tidskriftsartikel (refereegranskat)abstract
    • Atherosclerotic lesions are characterized by lipid-loaded macrophages (foam cells) and hypoxic regions. Although it is well established that foam cells are produced by uptake of cholesterol from oxidized LDL, we previously showed that hypoxia also promotes foam cell formation even in the absence of exogenous lipids. The hypoxia-induced lipid accumulation results from increased triglyceride biosynthesis but the exact mechanism is unknown. Our aim was to investigate the importance of glucose in promoting hypoxia-induced de novo lipid synthesis in human macrophages. In the absence of exogenous lipids, extracellular glucose promoted the accumulation of Oil Red O-stained lipid droplets in human monocyte-derived macrophages in a concentration-dependent manner. Lipid droplet accumulation was higher in macrophages exposed to hypoxia at all assessed concentrations of glucose. Importantly, triglyceride synthesis from glucose was increased in hypoxic macrophages. GLUT3 was highly expressed in macrophage-rich and hypoxic regions of human carotid atherosclerotic plaques and in macrophages isolated from these plaques. In human monocyte-derived macrophages, hypoxia increased expression of both GLUT3 mRNA and protein, and knockdown of GLUT3 with siRNA significantly reduced both glucose uptake and lipid droplet accumulation. In conclusion, we have shown that hypoxia-induced increases in glucose uptake through GLUT3 are important for lipid synthesis in macrophages, and may contribute to foam cell formation in hypoxic regions of atherosclerotic lesions.
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2.
  • Månsson, Marianne, 1964, et al. (författare)
  • Lp(a) is not associated with diabetes but affects fibrinolysis and clot structure ex vivo
  • 2014
  • Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 4
  • Tidskriftsartikel (refereegranskat)abstract
    • Lipoprotein (a) [Lp(a)] is a low density lipoprotein (LDL) with one apolipoprotein (a) molecule bound to the apolipoprotein B-100 of LDL. Lp(a) is an independent risk factor for cardiovascular disease (CVD). However, the relationship of Lp(a) to diabetes and metabolic syndrome, both known for increased CVD risk, is controversial. In a population based study on type two diabetes mellitus (T2DM) development in women, Lp(a) plasma levels showed the well known skewed distribution without any relation to diabetes or impaired glucose tolerance. A modified clot lysis assay on a subset of 274 subjects showed significantly increased clot lysis times in T2DM subjects, despite inhibition of PAI-1 and TAFI. Lp(a) plasma levels significantly increased the maximal peak height of the clot lysis curve, indicating a change in clot structure. In this study Lp(a) is not related to the development of T2DM but may affect clot structure ex vivo without a prolongation of the clot lysis time.
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3.
  • Barregård, Lars, 1948, et al. (författare)
  • Cadmium exposure in relation to insulin production, insulin sensitivity and type 2 diabetes: A cross-sectional and prospective study in women
  • 2013
  • Ingår i: Environmental Research. - : Elsevier BV. - 0013-9351. ; 121, s. 104-109
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Cadmium is a wide-spread pollutant. Observational studies suggest associations Objectives: To examine whether cadmium exposure is associated with impaired glucose tolerance and Methods: Oral glucose tolerance tests were used in a screening examination of 64-year old women Results: At baseline, neither blood nor urinary cadmium concentrations showed any statistically Conclusions: This is the first study of cadmium and diabetes with detailed data on pancreatic beta-cell
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4.
  • Barregård, Lars, 1948, et al. (författare)
  • Cadmium, type 2 diabetes, and kidney damage in a cohort of middle-aged women
  • 2014
  • Ingår i: Environmental Research. - : Elsevier BV. - 0013-9351. ; 135, s. 311-316
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: It has been proposed that diabetic patients are more sensitive to the nephrotoxicity of cadmium (Cd) compared to non-diabetics, but few studies have examined this in humans, and results are inconsistent. Aim: To test the hypothesis that women with type 2 diabetes mellitus (DM) or impaired glucose tolerance (IGT) have higher risk of kidney damage from cadmium compared to women with normal glucose tolerance (NGT). Methods: All 64-year-old women in Gothenburg, Sweden, were invited to a screening examination including repeated oral glucose tolerance tests. Random samples of women with DM, IGT, and NGT were recruited for further clinical examinations. Serum creatinine was measured and used to calculate estimated glomerular filtration rate (eGFR). Albumin (Alb) and retinol-binding protein (RBP) were analyzed in a 12 h urine sample. Cadmium in blood (B-Cd) and urine (U-Cd) was determined using inductively coupled plasma mass spectrometry. Associations between markers of kidney function (eGFR, Alb, and RBP) and quartiles of B-Cd and U-Cd were evaluated in models, including also blood pressure and smoking habits. Results: The mean B-Cd (n=590) was 0.53 mu g/L (median 0.34 mu g/L). In multivariable models, a significant interaction was seen between high B-Cd (upper quartile, >0.56 mu g/L) and DM (point estimate +0.40 mg Alb/12 h, P=0.04). In stratified analyzes, the effect of high B-Cd on Alb excretion was significant in women with DM (53% higher Alb/12 h, P=0.03), but not in women with IGT or NGT. Models with urinary albumin adjusted for creatinine showed similar results. In women with DM, the multivariable odds ratio (OR) for microalbuminuria (>15 mg/12 h) was increased in the highest quartile of B-Cd vs. B-Cd quartiles 1-3 in women with DM (OR 4.2, 95% confidence interval 1.1-12). No such effect was found in women with IGT or NGT. There were no associations between B-Cd and eGFR or excretion of RBP, and no differences between women with DM, IGT, or NGT regarding effect of B-Cd on eGFR or RBP. Conclusion: The present study provides support for the hypothesis that women with DM have higher risk of renal glomerular damage from cadmium exposure compared to women without DM. (C) 2014 Elsevier Inc. All rights reserved.
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5.
  • Behre, Carl Johan, 1968, et al. (författare)
  • Increasing Leisure Time Physical Activity is Associated With Less Prevalence of the Metabolic Syndrome in Healthy Middle-Aged Men
  • 2011
  • Ingår i: Angiology. - : SAGE Publications. - 1940-1574 .- 0003-3197.
  • Tidskriftsartikel (refereegranskat)abstract
    • The metabolic syndrome (MetS) is characterized by a constellation of factors that confer an increased risk for cardiovascular morbidity and mortality. It is well-known that physical activity (PA) has a protective role on cardiovascular morbidity and mortality, mainly through its favorable effects on traditional risk factors such as body mass and blood pressure (BP). We assessed the prevalence of MetS in a population-based sample of 58-year-old men with respect to leisure-time PA and also to occupational PA. The results showed an inverse linear association (P < .05) between leisure time physical activity (LTPA) and MetS in this group. In conclusion, this study suggests that PA has an important role in controlling MetS.
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6.
  • Behre, Carl Johan, 1968, et al. (författare)
  • Moderate physical activity is associated with lower apoB/apoA-I ratio, independently of other risk factors in healthy middle-aged men.
  • 2010
  • Ingår i: Angiology. - : SAGE Publications. - 0003-3197 .- 1940-1574. ; 61:8, s. 775-779
  • Tidskriftsartikel (refereegranskat)abstract
    • Low-density lipoprotein is recognized as a primary vascular risk factor. However, recent data favor apolipoprotein (apo)B and apoA-I as risk factors with higher predictive values than conventional lipids. We investigated how leisure-time physical activity relates to the serum apoB/apoA-I ratio in middle-aged men. The results showed that compared with a sedentary lifestyle, moderate physical activity was associated with a decreased apoB/apoA-I ratio (1.01 ± 0.28 vs 0.87 ± 0.24, P < .05) and increased apoA-I levels (1.30 ± 0.20 g/L vs 1.43 ± 0.22 g/L, P < .05), whereas vigorous activity was required to observe a reduction in apoB levels (1.27 ± 0.28 g/L vs 1.14 ± 0.24 g/L, P < .05). A covariate analysis showed that leisure time physical activity was also associated with reduced apoB/apoA-I ratios after adjustment for smoking, systolic blood pressure and waist circumference. Importantly, this association was seen at moderate levels of physical activity, supporting the notion that some activity is better than none.
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7.
  • Bergström, Göran, 1964, et al. (författare)
  • Increased Leisure-Time Physical Activity is Associated With Lower Prevalence of the Metabolic Syndrome in 64-Year Old Women With Impaired Glucose Tolerance.
  • 2012
  • Ingår i: Angiology. - : SAGE Publications. - 1940-1574 .- 0003-3197. ; 63:4, s. 297-301
  • Tidskriftsartikel (refereegranskat)abstract
    • The metabolic syndrome (MetS) is characterized by a cluster of factors that confer an increased risk of cardiovascular morbidity as well as mortality. It is established that physical activity (PA) has a protective role in cardiovascular morbidity and mortality, mainly through favorable effects on traditional risk factors such as body mass and blood pressure. We assessed the prevalence of MetS in a population-based sample of 64-year-old women with impaired glucose tolerance (IGT) with respect to leisure-time PA (LTPA). The results showed an inverse linear association (P < .05) between LTPA and MetS in this group. In conclusion, this study suggests that an increased PA level has an important role in preventing MetS in women with IGT.
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8.
  • Bergström, Göran, 1964, et al. (författare)
  • Moderate Intensities of Leisure-Time Physical Activity Are Associated With Lower Levels of High-Sensitivity C-Reactive Protein in Healthy Middle-Aged Men.
  • 2012
  • Ingår i: Angiology. - : SAGE Publications. - 1940-1574 .- 0003-3197. ; 63:6, s. 412-415
  • Tidskriftsartikel (refereegranskat)abstract
    • Circulating C-reactive protein (CRP), reflective of systemic chronic low-grade inflammation, is a marker associated with cardiovascular disease (CVD). One of the mechanisms through which physical activity might promote cardiovascular health is by preventing changes in inflammation biomarkers, such as CRP. The present study examined the association of self-reported physical activity with an inflammation biomarker, high-sensitivity CRP (hs-CRP), in a population-based cohort of clinically healthy 58-year-old men. Compared with a sedentary lifestyle both moderate (1.81 [0.94-3.69] vs 1.28 [0.55-2.90] mg/L; P < .05) and vigorous physical activity (1.81 [0.94-3.69] vs 0.88 [0.42-1.81] mg/L; P < .001) were associated with decrease in hs-CRP levels. In summary, we identified an association between self-reported leisure time physical activity and hs-CRP in a cross-sectional study of healthy 58-year-old men, with decreased levels of CRP by increased intensities of physical activity.
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9.
  • Bernberg, Evelina, 1981, et al. (författare)
  • Social disruption stress increases IL-6 levels and accelerates atherosclerosis in ApoE-/- mice.
  • 2012
  • Ingår i: Atherosclerosis. - : Elsevier BV. - 0021-9150 .- 1879-1484. ; 221:2, s. 359-65
  • Tidskriftsartikel (refereegranskat)abstract
    • We have previously shown that different forms of stress have distinctive effects on atherogenesis in mice. We showed that social stress increase atherosclerosis in ApoE(-/-) mice, while more physical forms of stress do not. Here we evaluated the effect of social disruption (SDR) stress on atherogenesis and evaluated cytokine release after SDR-stress and five more physical stressors.
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10.
  • Elias, Erik, 1979, et al. (författare)
  • Erythrocyte sodium-lithium countertransport activity is inversely correlated to adiponectin, retinol binding protein 4 and body height.
  • 2010
  • Ingår i: Scandinavian journal of clinical and laboratory investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 70:7, s. 487-91
  • Tidskriftsartikel (refereegranskat)abstract
    • We have previously described that the sodium/lithium countertransport (SLC) in the erythrocyte cell membrane is closely linked to obesity and insulin resistance. Adiponectin and retinol-binding protein 4 (RBP-4) are believed to affect obesity and insulin resistance. In the present study, we aimed to further characterize the relationship between SLC, inflammatory markers, adiponectin and RBP-4.
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