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Neumann F, Gompert M, Klein HW, Dokas J, Chadt A, Joost HG, Al-Hasani H. In vitro Charakterisierung des Rab-GTPase-aktivierenden Proteins TBC1D1. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1277346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Scherneck S, Mirhashemi F, Kluth O, Kaiser D, Schulz N, Vogel H, Kluge R, Joost HG, Schürmann A. Eine unzureichende Proliferation der β-Zellen trägt zur Diabetesempfindlichkeit der New Zealand Obese (NZO)-Maus bei. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1277284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kaiser D, Scherneck S, Becker N, Mabrok HBH, Loh G, Schürmann A, Joost HG, Wiedmer P. Dietary fibres reduce diabetes prevalence in NZO mice independently of obesity development. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1277454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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van Dieren S, Nöthlings U, van der Schouw YT, Spijkerman AMW, Rutten GEHM, van der A DL, Sluik D, Weikert C, Joost HG, Boeing H, Beulens JWJ. Non-fasting lipids and risk of cardiovascular disease in patients with diabetes mellitus. Diabetologia 2011; 54:73-7. [PMID: 20959955 PMCID: PMC2995865 DOI: 10.1007/s00125-010-1945-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Accepted: 09/20/2010] [Indexed: 11/30/2022]
Abstract
AIMS/HYPOTHESIS The aim of this study was to examine the effect of postprandial time on the associations and predictive value of non-fasting lipid levels and cardiovascular disease risk in participants with diabetes. METHODS This study was conducted among 1,337 participants with diabetes from the Dutch and German (Potsdam) contributions to the European Prospective Investigation into Cancer and Nutrition. At baseline, total cholesterol, LDL- and HDL-cholesterol and triacylglycerol concentrations were measured and the ratio of total cholesterol/HDL-cholesterol was calculated. Participants were followed for incidence of cardiovascular disease. RESULTS Lipid concentrations changed minimally with increasing postprandial time, except for triacylglycerol which was elevated just after a meal and declined over time (1.86 at 0.1 h to 1.33 at >6 h, p for trend <0.001). During a mean follow-up of 8 years, 116 cardiovascular events were documented. After adjustment for potential confounders, triacylglycerol (HR for third tertile compared with first tertile (HR(t)₃(to)₁), 1.73 [95% CI 1.04, 2.87]), HDL-cholesterol (HR(t)₃(to)₁, 0.41 [95% CI 0.23, 0.72]) and total cholesterol/HDL-cholesterol ratio (HR(t)₃(to)₁, 1.65 [95% CI 0.95, 2.85]) were associated with cardiovascular disease, independent of postprandial time. Cardiovascular disease risk prediction using the UK Prospective Diabetes Study risk engine was not affected by postprandial time. CONCLUSIONS/INTERPRETATION Postprandial time did not affect associations between lipid concentrations and cardiovascular disease risk in patients with diabetes, nor did it influence prediction of cardiovascular disease. Therefore, it may not be necessary to use fasting blood samples to determine lipid concentrations for cardiovascular disease risk prediction in patients with diabetes.
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Hesse D, Hommel A, Jaschke A, Völker W, Engel T, Chadt A, Blüher M, Ruschke K, Kluge R, Joost HG, Schürmann A. Durch eine Beeinträchtigung der Lipidtropfenbildung und eine erhöhte Lipolyse resultiert die Deletion der GTPase Arfrp1 im Fettgewebe in einem lipodystrophen Phänotyp. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jaschke A, Hesse D, Petzke KJ, Koepsell H, Joost HG, Schürmann A. Verminderte Lipid-Absorption nach Deletion der GTPase ARFRP1 im Darm. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schulz N, Himmelbauer H, Scherneck S, Vogel H, Augustin R, Kluge R, Joost HG, Schürmann A. Adp3 – ein möglicher Regulator des Körpergewichts und der Insulinsekretion. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
AIMS The current definition of impaired fasting glucose (IFG, >or=100 mg/dl) has been criticized as being too low for selective identification of individuals at risk for Type 2 diabetes. Furthermore, it is unclear whether any cut-off is justifiable from the shape of association between fasting plasma glucose (FPG) and diabetes. We therefore evaluated the association between FPG and incidence of Type 2 diabetes in a prospective, population-based study. METHODS A case-cohort study within the European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam cohort study involved 589 fasted participants in a randomly selected subcohort and 153 incident cases. Restricted cubic spline regression was used to examine non-linearity of associations and we calculated pairs of sensitivities and specificities for different cut-offs of FPG. RESULTS Spline regression with adjustment for age, sex, body mass index, waist circumference, education, physical activity, alcohol consumption, and plasma levels of triglycerides, high-density lipoprotein cholesterol and gamma-glutamyltransferase indicated that FPG was associated with risk in a non-linear fashion. Risk with higher FPG increased only above approximately 84 mg/dl. FPG>or=84 mg/dl yielded a sensitivity of 95.4% at a false-positive rate of 86.8%. In comparison, FPG>or=100 and>or=110 mg/dl yielded sensitivities of 78.4 and 42.5% and false-positive rates of 27.8 and 6.8%, respectively. The optimal cut-off of FPG was at approximately 102 mg/dl (sensitivity: 75.8%, false-positive rate: 20.7%). CONCLUSIONS Although our study suggests a threshold for increasing diabetes risk at 84 mg/dl, this cut-off would classify the vast majority of the population as at risk. The statistically optimal cut-off supports the current definition of IFG (>or=100 mg/dl).
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Dokas J, Chadt A, Neumann F, Joost HG, Al-Hasani H. Funktion von TBC1D1 im Substrat- und Energiestoffwechsel. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kluth O, Mirhashemi F, Kaiser D, Kluge R, Neschen S, Scherneck S, Joost HG, Schürmann A. Dissoziation von Glucotoxizität und Lipotoxizität in einem Mausmodell für Adipositas und Typ 2 Diabetes. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Vogel H, Kryvych S, Scherneck S, Benz V, Block MD, Kluge R, Joost HG, Schürmann A. Identifizierung einer Genvariante für Adipositas und Hyperglykämie im Suszeptibilitätslocus Nob3. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mirhashemi F, Kaiser D, Scherneck S, Kluth O, Vogel H, Kluge R, Joost HG, Schürmann A. Einfluss des Fettgehaltes der Diät auf die Diabetesentstehung der NZO-Maus. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Scherneck S, Vogel H, Nestler M, Blüher M, Urbanski S, Schulz N, Kluge R, Schürmann A, Joost HG. Identifizierung des Transkriptionsfaktors Zfp69 als potentielles Kandidatengen für Typ-2-Diabetes. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dreja T, Jovanovic Z, Rasche A, Kluge R, Herwig R, Tung YCL, Joost HG, Yeo GSH, Al-Hasani H. Diet-induced gene expression of isolated pancreatic islets from a polygenic mouse model of the metabolic syndrome. Diabetologia 2010; 53:309-20. [PMID: 19902174 PMCID: PMC2797618 DOI: 10.1007/s00125-009-1576-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Accepted: 09/21/2009] [Indexed: 12/12/2022]
Abstract
AIMS/HYPOTHESIS Numerous new genes have recently been identified in genome-wide association studies for type 2 diabetes. Most are highly expressed in beta cells and presumably play important roles in their function. However, these genes account for only a small proportion of total risk and there are likely to be additional candidate genes not detected by current methodology. We therefore investigated islets from the polygenic New Zealand mouse (NZL) model of diet-induced beta cell dysfunction to identify novel genes and pathways that may play a role in the pathogenesis of diabetes. METHODS NZL mice were fed a diabetogenic high-fat diet (HF) or a diabetes-protective carbohydrate-free HF diet (CHF). Pancreatic islets were isolated by laser capture microdissection (LCM) and subjected to genome-wide transcriptome analyses. RESULTS In the prediabetic state, 2,109 islet transcripts were differentially regulated (>1.5-fold) between HF and CHF diets. Of the genes identified, 39 (e.g. Cacna1d, Chd2, Clip2, Igf2bp2, Dach1, Tspan8) correlated with data from the Diabetes Genetics Initiative and Wellcome Trust Case Control Consortium genome-wide scans for type 2 diabetes, thus validating our approach. HF diet induced early changes in gene expression associated with increased cell-cycle progression, proliferation and differentiation of islet cells, and oxidative stress (e.g. Cdkn1b, Tmem27, Pax6, Cat, Prdx4 and Txnip). In addition, pathway analysis identified oxidative phosphorylation as the predominant gene-set that was significantly upregulated in response to the diabetogenic HF diet. CONCLUSIONS/INTERPRETATION We demonstrated that LCM of pancreatic islet cells in combination with transcriptional profiling can be successfully used to identify novel candidate genes for diabetes. Our data strongly implicate glucose-induced oxidative stress in disease progression.
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Joost HG, Wandel S, Schürmann A. Structure-function relationship of glucose transporters catalyzing facilitated diffusion. EXPERIMENTAL AND CLINICAL ENDOCRINOLOGY 2009; 102:434-8. [PMID: 7890019 DOI: 10.1055/s-0029-1211315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Schmidt S, Richter M, Gawlik V, Montag D, Sartorius T, Augustin R, Kluge R, Ruth P, Joost HG, Schürmann A. Neuronal functions, feeding behavior and energy balance in Slc2a3+/- mice. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1221984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chadt A, Leicht K, Deshmukh A, Jiang LQ, Scherneck S, Bernhardt U, Dreja T, Vogel H, Schmolz K, Kluge R, Zierath JR, Hultschig C, Hoeben RC, Schürmann A, Joost HG, Al-Hasani H. Positionelle Klonierung von Tbc1d1, einem neuen Suszeptibilitätsgen für Adipositas and Typ-2-Diabetes. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1222054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hommel A, Hesse D, Blüher M, Engel T, Zahn C, Moser M, Kluge R, Joost HG, Schürmann A. The Ras-homologous GTPase Arfrp1 is involved in the regulation of triglyceride storage in mouse and human adipose tissue. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1221808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hesse D, Hommel A, Zahn C, Augustin R, Henkel J, Püschel GP, Joost HG, Schürmann A. Die GTPase ARFRP1 ist essentiell für die Differenzierung der Hepatozyten und die Etablierung eines störungsfreien Glucosestoffwechsels. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1221804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gawlik V, Kluth O, Schmidt S, Scheepers A, Wennemuth G, Hölter SM, Augustin R, Moser M, Behrens M, Joost HG, Schürmann A. Die Deletion des Glucosetransporters GLUT8 in Mäusen vermindert die Spermienmotilität und steigert die körperlichen Aktivität. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1221851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dreja T, Jovanovic Z, Rasche A, Kluge R, Kleinjung F, Herwig R, Joost HG, Yeo G, Al-Hasani H. Identifizierung von Suszeptibilitätsgenen für Adipositas und Diabetes durch Analysen der Expressionsprofile von Fett- und Inselzellen bei einem polygenen Mausmodell für das Metabolische Syndrom. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1221807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hesse D, Hommel A, Zahn C, Augustin R, Henkel J, Püschel GP, Joost HG, Schürmann A. Veränderungen im Glucosemetabolismus nach leberspezifischer Deletion der GTPase ARFRP1 in der Maus. DIABETOL STOFFWECHS 2008. [DOI: 10.1055/s-2008-1076261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Dreja T, Jovanovic Z, Rasche A, Kluge R, Herwig R, Joost HG, Yeo G, Al-Hasani H. Diet-induced gene expression of isolated pancreatic islets from a polygenic mouse model for the metabolic syndrome. DIABETOL STOFFWECHS 2008. [DOI: 10.1055/s-2008-1076218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vogel H, Scherneck S, Nestler M, Kluge R, Schmolz K, Rüschendorf F, Schürmann A, Joost HG. Positionelle Klonierung des Adipositas QTL Nob3 durch die Zucht rekombinant-kongener Mauslinien. DIABETOL STOFFWECHS 2008. [DOI: 10.1055/s-2008-1076332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gawlik V, Schmidt S, Scheepers A, Wennemuth G, Augustin R, Moser M, Al-Hasani H, Joost HG, Schürmann A. Targeted disruption of Slc2a8 (GLUT8) reduces ATP levels and mitochondrial potential of spermatozoa. DIABETOL STOFFWECHS 2008. [DOI: 10.1055/s-2008-1076449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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