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19 July 2015 : Clinical Research  

Plasma Brain Natriuretic Peptide, Endothelin-1, and Matrix Metalloproteinase 9 Expression and Significance in Type 2 Diabetes Mellitus Patients with Ischemic Heart Disease

Chunfang JuDE, Meixin YeFG, Feng LiABC

DOI: 10.12659/MSM.893375

Med Sci Monit 2015; 21:2094-2099

Abstract

BACKGROUND: Type 2 diabetes (DMT2) combined with ischemic heart disease (IHD) promotes the occurrence and development of coronary atherosclerosis. We aimed to provide a theoretical basis for improving patient prognosis through analyzing expression of plasma brain natriuretic peptide (BNP), endothelin-1 (ET 1), and matrix metalloproteinase 9 (MMP-9).

MATERIAL AND METHODS: Enzyme-linked immunosorbent assay (ELISA) was used to detect BNP, ET-1, and MMP-9 levels in 50 patients with DMT2 only (group A), 47 patients with IHD only (group B), 43 patients with comorbid (both) IHD and DMT2 (group C), and 50 health controls (group D). Group C was further divided into single-branch lesion group, double-branch lesions group, and triple-branch lesion group according to coronary angiography, or cardiac function grade II, III, and IV group according to cardiac function, and their BNP, ET-1, and MMP-9 levels were compared.

RESULTS: Compared with group D, TG, diastolic, and systolic blood pressure were all significantly elevated in groups A, B, and C. Group C exhibited obviously higher glycosylated hemoglobin than group A. Gensini score in group C was markedly higher than in group B. Compared with group D, BNP, ET-1, and MMP-9 levels were all increased in groups A, B, and C. Group C showed higher levels of BNP, ET-1, and MMP-9 than group A and B. BNP, ET-1, and MMP-9 levels in the triple-branch lesions group were higher than in the single-branch lesions group and double-branch lesions group. The cardiac function grade IV group presented higher levels of BNP, ET-1, and MMP-9 than did the grade II and III groups. BNP, ET-1, and MMP-9 showed a positive correlation to each other.

CONCLUSIONS: BNP, ET-1, and MMP-9 may participate in the occurrence and development of comorbid DMT2 and IHD. They are important objective indicators for evaluating severity and prognosis of patients with comorbid DMA2 and IHD.

Keywords: Coronary Artery Disease - blood, Biomarkers - blood, Diabetes Mellitus, Type 2 - complications, Endothelin-1 - blood, Enzyme-Linked Immunosorbent Assay, Heart Function Tests, Matrix Metalloproteinase 9 - blood, Myocardial Ischemia - complications, Natriuretic Peptide, Brain - blood, Prognosis

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Medical Science Monitor Basic Research eISSN: 2325-4416
Medical Science Monitor Basic Research eISSN: 2325-4416