Journal
JOURNAL OF CLINICAL LIPIDOLOGY
Volume 8, Issue 6, Pages 618-629Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacl.2014.07.010
Keywords
Single-nucleotide polymorphisms; Serum lipid level; ABCB1; CYP7A1; Statin; Meta-analysis
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Funding
- National Natural Science Foundation of China [30960130]
- National 973 Project of China [2007CB512008]
- Scientific Research Foundation of Shanghai Jiao Tong University School of Medicine [12XJ3008]
- Scientific Research Foundation of Shanghai First People's Hospital [11B24]
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BACKGROUND: The relation between the ABCB1 and CYP7A1 genes and serum lipid levels and lipid-lowering efficacy of statin treatment is inconsistent. OBJECTIVE: The purpose of this meta-analysis was to explore the associations between the ABCB1 and CYP7A1 genes and serum lipid levels and lipid-lowering efficacy of statin treatment. METHODS: MEDLINE, EMBASE, and the Cochrane Library databases were searched systematically for studies of associations between relevant single nucleotide polymorphisms C3435 T (ABCB1), G2677 A/T (ABCB1), and A-204C (CYP7A1) and serum lipid levels or statin treatment. Associations were assessed in pooled data by calculating mean difference with 95% confidence intervals. RESULTS: Seventeen studies with 4890 patients were included in this meta-analysis. The AA group at A-204C (CYP7A1) had lower serum total cholesterol (TC) levels than AC + CC group. The AA group at A-204C (CYP7A1) had greater reduction in low-density lipoprotein cholesterol (LDL-C) with statin treatment than AC + CC group. The GG group at G2677 A/T (ABCB1) had less reduction in TC and LDL-C with statin treatment than non-GG group. CONCLUSIONS: The A-204C (CYP7A1) polymorphism was associated with the level of TC and the lipid-lowering efficacy of statin treatment in the level of LDL-C. The G2677 A/T (ABCB1) polymorphism was associated with the lipid-lowering efficacy of statin treatment in the levels of LDL-C and TC. (C) 2014 National Lipid Association. All rights reserved.
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