Year : 2019  |  Volume : 4  |  Issue : 4  |  Page : 111-115

Correlation between myocardial myosin-binding protein C, hypertension with left ventricular enlargement, and dilated cardiomyopathy

Department of Cardiology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China

Correspondence Address:
Xin-Zheng Lu
Department of Cardiology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/cp.cp_25_19

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Background: Dilated cardiomyopathy (DCM) is a relatively common clinical cardiac condition, and its progression will eventually lead to heart failure. Cardiac myosin-binding protein C (cMyBP-c) plays a vital role in the diastolic and contractile function of the heart muscle. At present, most of the relevant researches are focused on the genetic level. Our study discusses the expression of cMyBP-C in patients with DCM and its potential clinical application. Methodology: One hundred and twenty-two subjects were selected from the First Affiliated Hospital of Nanjing Medical University from August 2016 to October 2017. They were divided into two groups according to the left ventricular end-diastolic dimension (LVDd) as measured by echocardiography: normal (n = 34) and left ventricular enlargement (LVE) groups (n = 88). The LVE group was further divided into two subgroups according to the etiology: DCM (n = 57), and LVE due to hypertension (LVEH, n = 31). The left ventricular ejection fraction (EF%) was also defined in each group. Enzyme-linked immunosorbent assay (ELISA) was used for the determination of cMyBP-C in the serum. Results: (1) Serum cMyBP-C concentration was higher in DCM than in LVEH and control groups (P < 0.05) and (2) the LVDd, EF%, creatinine (Cr), urea (Ur), and uric acid (UA) in the DCM group were significantly higher than those in the LVEH group (P < 0.05). Conclusion: The serum level of cMyBP-C is expected to become a new biomarker for the diagnosis of DCM. Cr, Ur, and UA may be factors contributing to the development of DCM.

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