Abstract
The peroxisome proliferator-activated receptor-gamma2 (PPAR(gamma2)) represents the transcriptional master regulator of adipocyte differentiation and therefore has been suggested as candidate gene for the pathogenesis of obesity, type 2 diabetes and related metabolic disorders. Aim of our study was to determine the frequency of a missense point mutation within exon 2 of PPAR(gamma2), Pro12Ala, and its possible association with metabolic parameters as well as diabetic retinopathy (in a population-based sample of 560 (318 male ad 242 female) type 2 diabetic patients. Subsequent to genomic PCR amplification, the Hpa-II RFLP analysis was used for genotyping. 436 (77.9%) subjects were homozygous for the wildtype allele (Pro/Pro), 118 (21.1%) were heterozygous (Pro/Ala) and 6 (1.1%) were homozygous for the mutated allele (Ala/Ala). Genotype frequency was calculated to be 0.81 for the wildtype and 0.19 for the mutated allele. These frequencies did not differ from non-diabetic cohorts examined earlier. In contrast to females, total cholesterol and LDL-cholesterol were significantly higher in males (Total cholesterol: 281.8 +/- 51.3 vs 253.1 +/- 49.8 mg/dl, p < 0.0001; LDL-cholesterol: 182.0 +/- 49.2 vs 155.6 +/- 42.0 mg/d, p < 0.0001) ...Continue Reading
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