PMID- 21796807 OWN - NLM STAT- MEDLINE DCOM- 20111213 LR - 20211020 IS - 1862-1783 (Electronic) IS - 1673-1581 (Print) IS - 1673-1581 (Linking) VI - 12 IP - 8 DP - 2011 Aug TI - Association between SNP rs1800875, serum chymase and immunoglobulin E levels in patients with coronary heart disease. PG - 660-7 LID - 10.1631/jzus.B1101008 [doi] AB - OBJECTIVE: The gene for mast cell chymase (CMA1) is an ideal candidate for investigating the genetic predisposition to coronary heart disease (CHD), as activated mast cells have been found to be present in a greater proportion in the shoulder region of atheroma than in normal coronary intimae. Previous studies have indicated that CMA1 promoter polymorphism rs1800875 may be involved in regulating immunoglobulin E (IgE) levels in patients with eczema, and it is associated with the progression of immunoglobulin A nephropathy. METHODS: The association between single nucleotide polymorphism (SNP) rs1800875, serum chymase, and serum IgE levels was examined in 175 CHD subjects and 95 non-CHD subjects. RESULTS: Statistical analysis indicated no significant difference in allele frequency between CHD and non-CHD. However, a significant association was found between CMA1 genotypes and total IgE levels in CHD subjects. Meanwhile, crossover analysis revealed that, in GG homozygotes, CHD risk was nearly six times higher in those with IgE (U/ml) level <2.58 (natural logarithm conversion), while no association was found with chymase level. CONCLUSIONS: Polymorphism rs1800875 of CMA1 may be associated with serum IgE level in CHD subjects, but not with chymase level in both groups. In GG homozygotes, high IgE level is a protective factor against coronary disease. FAU - Jin, Chun-Na AU - Jin CN AD - Department of Cardiology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. FAU - Ma, Hong AU - Ma H FAU - Lin, Yan AU - Lin Y FAU - Wang, Jian-An AU - Wang JA FAU - Xiang, Mei-Xiang AU - Xiang MX LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - J Zhejiang Univ Sci B JT - Journal of Zhejiang University. Science. B JID - 101236535 RN - 37341-29-0 (Immunoglobulin E) RN - EC 3.4.21.39 (Chymases) SB - IM MH - Aged MH - Chymases/*blood/genetics MH - Constriction, Pathologic MH - Coronary Disease MH - Eczema/metabolism MH - Female MH - Gene Frequency MH - Genotype MH - Humans MH - Immunoglobulin E/*blood/genetics MH - Male MH - Mast Cells/enzymology MH - Middle Aged MH - *Polymorphism, Single Nucleotide MH - Promoter Regions, Genetic PMC - PMC3150720 EDAT- 2011/07/29 06:00 MHDA- 2011/12/14 06:00 PMCR- 2011/08/01 CRDT- 2011/07/29 06:00 PHST- 2011/07/29 06:00 [entrez] PHST- 2011/07/29 06:00 [pubmed] PHST- 2011/12/14 06:00 [medline] PHST- 2011/08/01 00:00 [pmc-release] AID - 10.1631/jzus.B1101008 [doi] PST - ppublish SO - J Zhejiang Univ Sci B. 2011 Aug;12(8):660-7. doi: 10.1631/jzus.B1101008.