• MicroRNA21-3p and microRNA885-5p as markers of viral hepatitis in infants
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MicroRNA21-3p and microRNA885-5p as markers of viral hepatitis in infants

SOVREMENNAYA PEDIATRIYA. 2015.1(65):96-101; doi 10.15574/SP.2015.65.96


MicroRNA21-3p and microRNA885-5p as markers of viral hepatitis in infants


Shadrin A. G., Chernega N. F., Guryanova V. L., Dosenko V. E.

Institute of PAG NAMS of Ukraine, Kiev

A.A. Bogomolets Institute of Physiology NAMS of Ukraine, Kiev


Objective. To study the levels of serum miRNAs in infants with viral hepatitis.


Patients and methods. A total of 22 infants with hepatitis — 17 of cytomegalovirus etiology and 5 HBV-etiology were under observation. Complex examinations included an analysis of anamnestic data and clinical and paraclinical investigations. Levels of miRNA-21–3p and miRNA-885—5p in the blood serum of children with hepatitis and healthy children were determined by the use of TaqMan method. The obtained data were analyzed with the use of «7500 Fast Real-time PCR» software and demonstrated in the graphic form.


Results. It is revealed that the levels of miRNA-21—3p and miRNA-885—5p in children with hepatitis are higher in comparison with healthy (p<0.05). At CMV-hepatitis miRNA-21—3p is 2.2728 CU against 0.6516 CU in healthy; miRNA-885—5p — 1.7244 CU against 0.1801 CU. At HBV, hepatitis-miRNA-21-3p — 38.9124 CU against 0.6516 CU, respectively; miRNA-885-5p — 1.7244 CU against 0.1801 against CU in healthy. The level of miRNA-21-3p significantly higher in the group of children with hepatitis of HBV-etiology in comparison with children with hepatitis of CMV-etiology (p<0.05).


Conclusions. The increase of the content of miRNA-21-3p during the viral liver lesions denote the decisive role of miRNA-21-3p as a regulator of the immune response and can be used as a diagnostic biomarker. The highest level of miRNA-21-3p in children with HBV-hepatitis pointed at a deeper involvement of the immune mechanisms that determine the further course of the disease. These studies confirm the need for inclusion of hepatoprotective and immunocorrective therapy during the viral hepatitis, according to the degree of inflammatory activity.


Key words: microRNA, cytomegalovirus, hepatitis B virus, hepatitis, infants



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