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Correlation of angiotensin converting enzyme gene polymorphism with perioperative myocardial protection under extracorporeal circulation.
MedLine Citation:
PMID:  23199721     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: To observe the expression of angiotensin converting enzyme (ACE), angiotensin II (Ang II), cardiac troponin (cTn I), creatine kinase isozymes (CK-MB) and muscle red protein(Myo) after cardiopulmonary bypass (CPB), and to investigate the association of polymorphisms in angiotensin converting enzyme genes and myocardial injury.
METHODS: Sixty-three patients suffered from rheumatic mitral stenosis and scheduled for mitral valve replacement with CPB, were randomly divided into three groups according polymorphisms in angiotensin converting enzyme genes: type II, type ID, type DD (each=21). Blood samples were withdrawn from artery before operation (T1), at the beginning of CPB (T2), 30 min after CPB (T3), (T4) at the end of CPB (T5), 2 h after CPB (T6), 6 h after CPB (T7) to measure the expression of ACE, Ang II, cTn I, CK-MB, Myo.
RESULTS: The level of ACE during and after CPB were significantly higher than those before CPB (P<0.05). As extension of CPB time, the expression of ACE was increased. The level of cTn I, CK-MB, Myo after CPB were significantly higher than those before CPB(P<0.05). The level of cTn I, CK-MB and Myo were highest at T7, T6 and T5 and T7, respectively. The level of ACE, Ang II cTn I in patients with DD genotype was significantly higher than the ID and II genotype (P< 0.05). Besides, the level of ACE, Ang II in patients with ID genotype was significantly higher than the II (P< 0.05).
CONCLUSIONS: There is certain correlation between CPB perioperative midterm ACE and cTn I, Myo, CK-MB. ACE DD genotype is a susceptibility gene of the CPB perioperative myocardial injury.
Authors:
Wei Yang; Xiao Dong; Bin Li; Xiao-Qiang Zhang; Yuan Zeng; Yi-Ping Wei; Jian-Liang Zhou; Yan-Hua Tang; Jian-Jun Xu
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Asian Pacific journal of tropical medicine     Volume:  5     ISSN:  1995-7645     ISO Abbreviation:  Asian Pac J Trop Med     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101533720     Medline TA:  Asian Pac J Trop Med     Country:  Singapore    
Other Details:
Languages:  eng     Pagination:  995-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Hainan Medical College. Published by Elsevier B.V. All rights reserved.
Affiliation:
Department of Cardiothoracic Surgery, Second Affiliated Hospital to Nanchang University.
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