نتایج جستجو برای: a3243g
تعداد نتایج: 187 فیلتر نتایج به سال:
میتوکندری یکی از ارگان های داخل سلولی است که dna مخصوص به خود دارد. تا کنون تعدادی بیماری ناشی از جهش mtdna گزارش شده است. یکی از این جهش ها، جهش a3243g و حذف 5kb می باشد. عواقب این جهش های ژنی طیفی از بیماری ها را بوجود می آورد که یکی از آنها دیابت نوع 2 است. هدف از این مطالعه تعیین جهش a3243gtrnaleu و حذف 5kb در بیماران دیابتی نوع 2 می باشد. روش ها: dna 130 بیمار دیابت نوع 2 که میزان انسولین ...
BACKGROUND Focal segmental glomerulosclerosis (FSGS) is a major cause of steroid-resistant nephrotic syndrome in childhood with a central role for the podocytes in the pathogenesis. Mutated proteins expressed in podocytes cause proteinuria. The role of combined gene defects in the development of FSGS is less clear. METHODS We analysed seven podocyte genes known to cause proteinuria and FSGS i...
The aim of this study was characterization of a family carrying two mutations known to cause monogenic forms of diabetes, the M626K mutation in the HNF1alpha gene (MODY3) and the A3243G in mtDNA. Beta-cell function and insulin sensitivity were assessed with the Botnia clamp. Heteroplasmy of the A3243G mutation and variants in type 2 diabetes susceptibility genes were determined, and transcripti...
Disease-causing mutations in mitochondrial DNA (mtDNA) are typically heteroplasmic and therefore interpretation of genetic tests for mitochondrial disorders can be problematic. Detection of low level heteroplasmy is technically demanding and it is often difficult to discriminate between the absence of a mutation or the failure of a technique to detect the mutation in a particular tissue. The re...
The majority of pathogenic mitochondrial DNA (mtDNA) mutations are heteroplasmic, with both mutant and wild-type alleles present within the same individual. MtDNA is transmitted only from females to their offspring but a single female can bear offspring who harbour different levels of mutant mtDNA and have a variable phenotype. In single families, this complex genetic and phenotypic variability...
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