PMID- 26617759 OWN - NLM STAT- MEDLINE DCOM- 20160928 LR - 20221207 IS - 1936-2625 (Electronic) IS - 1936-2625 (Linking) VI - 8 IP - 9 DP - 2015 TI - Association of genetic polymorphisms on BTNL2 with susceptibility to and prognosis of dilated cardiomyopathy in a Chinese population. PG - 10488-99 AB - BACKGROUND: Dilated cardiomyopathy (DCM) is one type of primary myocardial disease, partly caused by immunity dysfunctions. BTNL2 (butyrophilin-like 2) has already been confirmed to be involved in the etiology of autoimmune disorders and GWAS (genome wide association study) has also identified mutants of a SNP (single nucleotide polymorphism) near BTNL2 could modulate risk of coronary heart disease (also cardiomyopathy). The current study, therefore, was aimed to investigate whether polymorphisms within or around BTNL2 would be correlated with susceptibility to and prognosis of DCM. MATERIAL AND METHODS: Peripheral blood samples were gathered from 82 DCM patients and 75 healthy controls. Nine tag-SNPs within or near BTNL2 were obtained from HapMap Database and previously published studies. Eligible haplotypes were gained on the basis of SHesis software. Genotyping of SNPs was implemented with aid of Sequenom MassArray iPLEX platform and subsequently analyzed via MALDI-TOF mass spectrometry. The odd ratios and their 95% confidence interval (95% CI) were utilized to evaluate the correlations between SNPs/haplotypes and DCM risks. Finally, Cox proportional hazard models and Kaplan-Meier curves were performed to assess association of SNPs/haplotypes with prognosis of DCM patients. The statistical analyses were conducted with SPSS 19.0 software. RESULTS: Under the allelic model, rs3763313 (A > C), rs9268494 (C > A), rs9268492 (C > G) and rs9268402 (A > G) were remarkably associated with susceptibility to grade IV of DCM classified by NYHA (New York heart association) (OR = 0.43, 95% CI: 0.22-0.84; P = 0.018; OR = 0.49, 95% CI: 0.27-0.91; P = 0.024; OR = 0.50, 95% CI: 0.27-0.94; P = 0.035; OR = 0.53, 95% CI: 0.28-0.97; P = 0.048). Haplotype C-C-A-T (rs9268492, rs9268494, rs3763313 and rs3763317 synthesized) was also regarded as a protective factor for DCM patients compared with carriers of other haplotypes (OR = 0.50, 95% CI: 0.26-0.97, P = 0.038). Moreover, the univariate survival analysis and multivariate Cox regression analysis both indicated noticeable correlations between rs9268402 and haplotype C-C-A-T and prognosis of DCM patients (NYHA IV), respectively (Long-Rank P = 0.029, HR: 0.241, 95% CI: 0.089-0.650, P = 0.005; Long-Rank P = 0.036; HR = 0.126, 95% CI: 0.035-0.457, P = 0.002). Nonetheless, rs3763313 was found only associated with prognosis of DCM patients (NYHA IV) expressed in the Kaplan-Meier curve (P = 0.009). CONCLUSION: The genetic mutations within or around BTNL2 (rs3763313, rs9268494, rs9268492 and rs9268402) could alter susceptibility to grade IV of DCM in a Chinese population, and the 2 SNPs (rs3763313 and rs9268402) therein added with haplotype C-C-A-T might separately predict the prognosis of DCM patients. However, additional studies regarding diverse ethnicities need to be furthered to validate our results. FAU - Cheng, Liang AU - Cheng L AD - Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China. FAU - Zhao, Rong AU - Zhao R AD - Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China. FAU - Jin, ZhenXiao AU - Jin Z AD - Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China. FAU - Ren, Kai AU - Ren K AD - Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China. FAU - Deng, Chao AU - Deng C AD - Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China. FAU - Yu, Shiqiang AU - Yu S AD - Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China. LA - eng PT - Journal Article DEP - 20150901 PL - United States TA - Int J Clin Exp Pathol JT - International journal of clinical and experimental pathology JID - 101480565 RN - 0 (BTNL2 protein, human) RN - 0 (Butyrophilins) RN - 0 (Membrane Glycoproteins) SB - IM MH - Asian People/genetics MH - Butyrophilins MH - Cardiomyopathy, Dilated/*genetics/mortality MH - Echocardiography, Doppler MH - Female MH - Genetic Predisposition to Disease/*genetics MH - Genome-Wide Association Study MH - Genotype MH - Humans MH - Kaplan-Meier Estimate MH - Male MH - Membrane Glycoproteins/*genetics MH - Middle Aged MH - Polymorphism, Single Nucleotide MH - Prognosis MH - Proportional Hazards Models MH - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization PMC - PMC4637574 OTO - NOTNLM OT - Dilated cardiomyopathy OT - butyrophilin-like 2 OT - haplotype OT - prognosis OT - single nucleotide polymorphism OT - susceptibility EDAT- 2015/12/01 06:00 MHDA- 2016/09/30 06:00 PMCR- 2015/09/01 CRDT- 2015/12/01 06:00 PHST- 2015/07/25 00:00 [received] PHST- 2015/08/28 00:00 [accepted] PHST- 2015/12/01 06:00 [entrez] PHST- 2015/12/01 06:00 [pubmed] PHST- 2016/09/30 06:00 [medline] PHST- 2015/09/01 00:00 [pmc-release] PST - epublish SO - Int J Clin Exp Pathol. 2015 Sep 1;8(9):10488-99. eCollection 2015.