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- W2000833392 abstract "Abstract Genome-wide association studies (GWAS) have identified genetic variants contributing to the risk of cardiovascular disease (CVD) at the chromosome 9p21 locus. The CVD-associated region is adjacent to the two cyclin dependent kinase inhibitors ( CDKN ) 2A and 2B and the last exons of the non-coding RNA, ANRIL. It is still not clear which of or how these transcripts are involved in the pathogenesis of atherosclerosis. Objective We assessed the hypothesis that 9p21 locus polymorphisms influence the expression of the transcripts in the region (ANRIL, CDKN2A/B ) and that these transcripts contribute to atherogenesis through the modulation of proliferation in VSMC. Methods We genotyped 18 SNPs ( r 2 0.05) across the region of interest: CDKN2A/B and ANRIL , encompassing the CVD-associated region. RNA and DNA were extracted from the blood of 57 volunteers (69–72years old). Carotid ultrasound was performed in 56 subjects. CDKN2A/B and ANRIL (exons 1–2 and 17–18) expression was measured employing RT-PCR. Gene expression and cell growth were evaluated in cultured VSMC after the siRNA-mediated knock-down of ANRIL . Results The risk alleles for atherosclerosis-related phenotypes were consistently associated with a lower expression of ANRIL when evaluating exons 1–2. Common carotid artery stenosis was associated with a significantly lower ( P CDKN2A/B ( P P in vitro . Conclusion Disease-associated SNPs at the 9p21 locus predominantly affect the expression of ANRIL. Overall, our results suggest that several CVD-associated SNPs in the 9p21 locus affect the expression of ANRIL, which, in turn modulate cell growth, possibly via CDKN2A/B regulation." @default.
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- W2000833392 date "2012-02-01" @default.
- W2000833392 modified "2023-09-30" @default.
- W2000833392 title "Genetic variants at the 9p21 locus contribute to atherosclerosis through modulation of ANRIL and CDKN2A/B" @default.
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- W2000833392 doi "https://doi.org/10.1016/j.atherosclerosis.2011.11.017" @default.
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