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Chinese Journal of Critical Care & Intensive Care Medicine(Electronic Edition) ›› 2021, Vol. 07 ›› Issue (03): 208-213. doi: 10.3877/cma.j.issn.2096-1537.2021.03.003

• Clinical Researches • Previous Articles     Next Articles

Correlation analysis of MYNN gene polymorphism in rs10936599 region and the prognosis of patients with acute heart failure

Yanxiu Li1, Zhongwen Zhang2, Yun Liu1, Xiangrong Zuo1, Xinli Li3, Quan Cao1,()   

  1. 1. Department of Critical Care Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
    2. Department of Hepatobiliary and Pancreatic Surgery, the Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, China
    3. Department of Cardiovascular Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
  • Received:2021-02-07 Online:2021-08-28 Published:2021-10-20
  • Contact: Quan Cao

Abstract:

Objective

To investigate the relationship between the rs10936599 polymorphism of MYNN gene and the prognosis of patients with acute heart failure (AHF).

Methods

A total of 328 hospitalized patients with AHF from 2012 to 2016 were prospectively enrolled. Patients were followed up to 12 months. The primary outcome was all-cause mortality. The SNP locus rs10936599 (T/C) of the MYNN gene were analyzed by TaqMan method. Baseline characteristics were compared between groups which divided based on the different genotypes (TT genotype, CT genotype, CC genotype). Cox Regression analysis were used to identify the association between rs10936599 and outcome.

Results

(1) Frequency distribution of rs10936599 genotype: there were 100 cases of homozygous TT genotype (30.5%), 162 cases of heterozygous CT genotype (49.4%), 66 cases of mutation homozygous CC genotype (20.1%); AHF patients with different genotypes had a significant difference of 12-month mortality (χ2=9.749, P=0.0076; χ2=9.641, P=0.0019). (2) Baseline characteristics comparison among different genotypes showed a significant difference of the heart rate, serum potassium, and medications of Digoxin and Aldosterone antagonist during hospitalization (H=7.714, P=0.021; F=3.254, P=0.040). (3) Kaplan-Meier analysis showed the 12-month survival rate of patients with AHF carrying allele C (CC/CT) was significantly lower than that of patients with TT genotype (TT vs CT, P= 0.026; TT vs CC, P=0.002). (4) Cox regression analysis showed that homozygous CT genotype and heterozygous CC genotype were independent risk factors for the death of patients with acute heart failure (HR=2.10, 95%CI: 1.07-4.12; HR=2.96, 95%CI: 1.42-6.19).

Conclusion

MYNN rs10936599 gene polymorphisms are associated with the 12-month mortality of patients with AHF. CC and CT genotype are independent risk factors of 12-month mortality of AHF.

Key words: MYNN gene, rs10936599, Acute heart failure, Prognosis

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