Study of the relationship between nicotinamide adenosine dinucleotide phosphate oxidase in peripheral blood mononuclear cell and left ventricular remodeling in patients with acute myocardial infarction
10.3760/cma.j.issn.1673-4904.2012.19.002
- VernacularTitle:外周血单个核细胞尼克酰胺腺嘌呤二核苷酸磷酸氧化酶与急性心肌梗死左室重构的关系研究
- Author:
Jianyun LIU
;
Peng XU
;
Xun LI
- Publication Type:Journal Article
- Keywords:
Myocardial infarction;
Ventricular remodeling;
Malondialdehyde;
NADPH oxidase
- From:
Chinese Journal of Postgraduates of Medicine
2012;35(19):4-6
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relationship between the activity of nicotinamide adenosine dinucleotide phosphate(NADPH ) oxidase in peripheral blood mononuclear cell and left ventricular remodeling in patients with acute myocardial infarction (AMI).Methods Fifty-two patients with AMI hospitalized from December 2010 to June 2011 were selected as AMI group,and 25 patients with paroxysmal supraventricular tachycardia hospitalized in the same period were selected as control group.All patients were examined by Doppler echocardiography and left ventricular mass index (LVMI) was calculated.Fasting blood was drawn on the second day after hospitalization to measure the level of biochemical indexes,malondialdehyde(MDA ) and the activity of NADPH oxidase.The correlation of the level of MDA,the activity of NADPH oxidase and LVMI was analyzed.Results The level of MDA in AMI group was significantly higher than that in control group [(6.14 ±t 2.80) μ mol/L vs(2.95 ± 1.82) μmol/L,P ＜ 0.01 ].The levd of O2- in AMI group was also obviously higher than that in control group [(21.61 ± 10.66) RLU/mg protein vs.( 7.12 ± 4.48 ) RLU/mg protein,P ＜ 0.01 ],as well as the activity of NADPH oxidase [ ( 2.84 ± 1.05 ) RLU/mgprotein vs.( 1.97 ± 0.80) RLU/mg protein,P ＜ 0.01].Positive correlation was found between LVMI and the level of MDA(r =0.57,P ＜ 0.01 ),as well as between LVMI and the activity of NADPH oxidase(r =0.71,P＜0.01 ).Conclusions The activity of NADPH oxidase in peripheral blood mononuclear cell inereases in AMI patients and plays an important role in left ventricular remodeling after AMI.
