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[The prognostic value of circulating microRNA-29b in left ventricular hypertrophy in patients with hypertension]

X H Zhou¹, J P Cai², W L Liu¹

¹Cardiovascular Department, Henan Province People's Hospital (Fuwai Central China Cardiovascular Hospital the People's Hospital of Zhengzhou University), Zhengzhou 453000, China.

Zhonghua Nei Ke Za Zhi

|March 28, 2019

Objective: To analyze the relationship between the level of microRNA-29b in circulation and left ventricular hypertrophy in hypertensive patients. Methods: A total of 240 subjects from Henan Province People's Hospital from June 2015 to June 2018 were included in the present study. Among them, 160 were hospitalized patients, and were divided into two groups. Patients with simple hypertension and had no left ventricular hypertrophy (80 cases) were in the simple hypertension group (HBP-NLVH), and patients with hypertension combined with left ventricular hypertrophy (80 cases) were in the high blood pressure with left ventricular hypertrophy group (HBP-LVH). Normal control subjects (80 cases) were those with no hypertension and randomly selected from the medical center of Henan Province People's Hospital. Serum microRNA-29b expressions were detected by real time fluorescence quantitative PCR. The thickness of interventricular septum (IVSD) and left ventricular posterior wall thickness (LVPWD) were measured by echocardiography. Results: Compared with the normal control group (1.95±0.79), the relative expression of microRNA-29b in the patients both in the HBP-NLVH group (2.67±0.92) and the HBP-LVH group (5.12±1.23) was up-regulated, and the difference between normal control and patients was statistically significant (P<0.05). In patients, the microRNA-29b level in the HBP-LVH group was significantly higher than that in the HBP-NLVH group (P<0.05). The expression level of microRNA-29b was positively correlated with IVSD (r=0.71, P<0.05) and LVPWD (r=0.74, P<0.05), respectively. The sensitivity and specificity of serum microRNA-29b levels in the diagnosis of left ventricular hypertrophy in hypertension patients were 96.8% and 91.3%, respectively. Conclusion: Serum microRNA-29b level is elevated in hypertensive patients with left ventricular hypertrophy, and is positively correlated with left ventricular hypertrophy. The circulation microRNA-29b might be a useful biomarker with prognostic value in left ventricular hypertrophy in hypertension patients.

Objective: To analyze the relationship between the level of microRNA-29b in circulation and left ventricular hypertrophy in hypertensive patients. Methods: A total of 240 subjects from Henan Province People's Hospital from June 2015 to June 2018 were included in the present study. Among them, 160 were hospitalized patients, and were divided into two groups. Patients with simple hypertension and had no left ventricular hypertrophy (80 cases) were in the simple hypertension group (HBP-NLVH), and patients with hypertension combined with left ventricular hypertrophy (80 cases) were in the high blood pressure with left ventricular hypertrophy group (HBP-LVH). Normal control subjects (80 cases) were those with no hypertension and randomly selected from the medical center of Henan Province People's Hospital. Serum microRNA-29b expressions were detected by real time fluorescence quantitative PCR. The thickness of interventricular septum (IVSD) and left ventricular posterior wall thickness (LVPWD) were measured by echocardiography. Results: Compared with the normal control group (1.95±0.79), the relative expression of microRNA-29b in the patients both in the HBP-NLVH group (2.67±0.92) and the HBP-LVH group (5.12±1.23) was up-regulated, and the difference between normal control and patients was statistically significant (P<0.05). In patients, the microRNA-29b level in the HBP-LVH group was significantly higher than that in the HBP-NLVH group (P<0.05). The expression level of microRNA-29b was positively correlated with IVSD (r=0.71, P<0.05) and LVPWD (r=0.74, P<0.05), respectively. The sensitivity and specificity of serum microRNA-29b levels in the diagnosis of left ventricular hypertrophy in hypertension patients were 96.8% and 91.3%, respectively. Conclusion: Serum microRNA-29b level is elevated in hypertensive patients with left ventricular hypertrophy, and is positively correlated with left ventricular hypertrophy. The circulation microRNA-29b might be a useful biomarker with prognostic value in left ventricular hypertrophy in hypertension patients.

Keywords:

Hypertension Left ventricular hypertrophy MicroRNA-29b

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