Life sciences · 2019
Value of the expression of miR-208, miR-494, miR-499 and miR-1303 in early diagnosis of acute myocardial infarction.
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Li Ping, Li Si-Yao, Liu Ming, Ruan Jiang-Wen, Wang Zheng-Dong, Xie Wen-Chao
Аннотация
AIMS: This study aims to investigate the value of the expression of miR-208, miR-494, miR-499 and miR-1303 in the early diagnosis of acute myocardial infarction (AMI).
MAIN METHODS: Patients were divided into two groups: AMI group (n = 41), and Stable angina pectoris (SAP) group (n = 32). Peripheral venous blood was sampled from these patients at the time of admission (T0), 6 h after onset (T6) and 12 h after onset (T12), while blood was sampled once from healthy subjects who underwent physical examination in the same time period (control group, n = 10). The expression of miR-208, miR-494, miR-499 and miR-1303 in serum were detected by real-time quantitative polymerase chain reaction (qRT-PCR), and differences in miRNA expression among these three groups of patients were analyzed.
KEY FINDINGS: Serum miR-208, miR-494, miR-499 and miR-1303 expression levels at different time points were significantly higher in the AMI group than in the SAP group and control group. The differences among these groups were statistically significant (P < 0.05), while the difference between the SAP group and control group was not statistically significant (P > 0.05). Variation trend: The miRNA levels above began to increase at T0 in the AMI group, the peak levels of miR-208, miR-494 and miR-499 appeared before T12, and the peak level of miR-1303 appeared between T6 and T12, or after T12.
SIGNIFICANCE: miR-208, miR-494, miR-499 and miR-1303 were not superior to hs-cTnI as myocardial markers in the diagnosis of early acute myocardial infarction.
MAIN METHODS: Patients were divided into two groups: AMI group (n = 41), and Stable angina pectoris (SAP) group (n = 32). Peripheral venous blood was sampled from these patients at the time of admission (T0), 6 h after onset (T6) and 12 h after onset (T12), while blood was sampled once from healthy subjects who underwent physical examination in the same time period (control group, n = 10). The expression of miR-208, miR-494, miR-499 and miR-1303 in serum were detected by real-time quantitative polymerase chain reaction (qRT-PCR), and differences in miRNA expression among these three groups of patients were analyzed.
KEY FINDINGS: Serum miR-208, miR-494, miR-499 and miR-1303 expression levels at different time points were significantly higher in the AMI group than in the SAP group and control group. The differences among these groups were statistically significant (P < 0.05), while the difference between the SAP group and control group was not statistically significant (P > 0.05). Variation trend: The miRNA levels above began to increase at T0 in the AMI group, the peak levels of miR-208, miR-494 and miR-499 appeared before T12, and the peak level of miR-1303 appeared between T6 and T12, or after T12.
SIGNIFICANCE: miR-208, miR-494, miR-499 and miR-1303 were not superior to hs-cTnI as myocardial markers in the diagnosis of early acute myocardial infarction.