tailieunhanh - Báo cáo khoa hoc:" The CTGF -945GC polymorphism is not associated with plasma CTGF and does not predict nephropathy or outcome in type 1 diabetes"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: The CTGF -945GC polymorphism is not associated with plasma CTGF and does not predict nephropathy or outcome in type 1 diabetes | Dendooven et al. Journal of Negative Results in BioMedicine 2011 10 4 http content 10 1 4 r M 1 JOURNAL OF NEGATIVE RESULTS IN BIOMEDICINE BRIEF REPORT Open Access The CTGF -945GC polymorphism is not associated with plasma CTGF and does not predict nephropathy or outcome in type 1 diabetes Amélie Dendooven1 Tri Q Nguyen1 Lodewijk Brosens1 Dongxia Li2 Lise Tarnow3 Hans-Henrik Parving4 Peter Rossing3 and Roel Goldschmeding1 Abstract The -945GC polymorphism rs6918698 in the connective tissue growth factor gene promoter CTGF CCN-2 has been associated with end organ damage in systemic sclerosis. Because CTGF is important in progression of diabetic kidney disease we investigated whether the -945GC polymorphism is associated with plasma CTGF level and outcome in type 1 diabetes. The study cohort consisted of 448 diabetic nephropathy patients and 419 normoalbuminuric diabetic patients with complete data concerning renal function and cardiovascular characteristics. Genomic DNA was genotyped by a QPCR-based SNP assay. We observed no relation between the -945GC polymorphism and plasma CTGF level and the genotype frequencies were not different in nephropathy patients vs. normoalbuminuric controls. General and cardiovascular mortality and renal function decline was similar in patients with CC CG or GG genotypes. In conclusion the -945GC SNP does not affect plasma CTGF levels incidence and prognosis of diabetic nephropathy and cardiovascular outcome. Findings Connective tissue growth factor CTGF CCN-2 is a key peptide mediating organ fibrosis 1-3 . Fonseca et al. identified a single nucleotide polymorphism SNP at position -945 upstream from the transcription initiation site of the CTGF gene -945GC overrepresented in patients with systemic sclerosis SSc and associated with a higher incidence of lung fibrosis 4 . Subsequent studies have either confirmed or questioned the association of the G allele with incidence and severity of SSc and its relation with in vivo CTGF

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