نتایج جستجو برای: irs1
تعداد نتایج: 890 فیلتر نتایج به سال:
Although epidemiological data have indicated that a strong negative association exists between coffee consumption and the prevalence of obesity-associated diseases, the molecular mechanisms by which coffee intake prevents obesity-associated diseases has not yet been elucidated. In this study, we found that coffee intake significantly suppressed high-fat diet (HFD)-induced metabolic alternations...
31 Many members of the forkhead genes family of transcription factors have been implicated as 32 important regulators of metabolism, in particular glucose homeostasis e.g. Foxo1, Foxa3 and 33 Foxc2. The purpose of this study was to exploit the possibility that yet unknown members of 34 this gene family play a role in regulating glucose tolerance in adipocytes. We identified Foxf2 35 in a screen...
XRCC2 protein shares weak amino acid sequence similarity with Rad51, which is a central player in homologous recombinational repair (HRR). Rad51 proteins assemble at the sites of HRR and form visible nuclear foci in response to DNA damage. Xrcc2 hamster mutant irs1 cells are incapable of forming Rad51 foci after ionizing irradiation or DNA cross-linking agent mitomycin C treatment, though the R...
It has previously been shown that transcription greatly enhances recombination in mammalian cells. However, the proteins involved in catalysing this process and the recombination pathways involved in transcription-associated recombination (TAR) are still unknown. It is well established that both the BRCA2 protein and the RAD51 paralog protein XRCC2 are required for homologous recombination. Her...
Reduced signalling through the insulin/insulin-like growth factor-1 signalling (IIS) pathway is a highly conserved lifespan determinant in model organisms. The precise mechanism underlying the effects of the IIS on lifespan and health is currently unclear, although cellular stress resistance may be important. We have previously demonstrated that mice globally lacking insulin receptor substrate ...
The forkhead transcription factor Foxo1 regulates expression of genes involved in stress resistance and metabolism. To assess the contribution of Foxo1 to metabolic dysregulation during hepatic insulin resistance, we disrupted Foxo1 expression in the liver of mice lacking hepatic Irs1 and Irs2 (DKO mice). DKO mice were small and developed diabetes; analysis of the DKO-liver transcriptome identi...
It has been proposed that type 1 and 2 diabetes might share common pathophysiological pathways and, to some extent, genetic background. However, to date there has been no convincing data to establish a molecular genetic link between them. We have genotyped three single nucleotide polymorphisms associated with type 2 diabetes in a large type 1 diabetic family collection of European descent: Gly9...
Troxerutin is a bioflavonoid, which can be used to treat venous disorders, thrombosis and cerebrovascular diseases. Recent studies have demonstrated that it may also be used to prevent edemas. However, it is not known whether troxerutin protects against the cardiomyopathic complications of diabetes. In the present study, a rat model of type 2 diabetes was used to investigate the potential for t...
Abstract Background In osteoarthritis (OA), cartilage matrix is lost gradually despite enhanced synthesis by chondrocytes. This paradox may be explained, at least partly, reduced chondrocyte anabolism in degenerated area of OA cartilage. However, to date, it not known why suppressed those areas. Methods Cartilage was obtained from control knees and end-stage macroscopically preserved areas area...
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