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MicroRNA-125b in peripheral blood: a potential biomarker for severity and prognosis of children with viral encephalitis

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Abstract

This study aims to evaluate the effect of peripheral blood miR-125b expression on severity and prognosis in children with viral encephalitis (VE). Children with VE (severe and mild groups) were grouped into VE group, and 40 healthy children as control group. Plasma RNA was extracted, and real-time quantitative PCR was conducted to detect miR-125b relative expression. Associations of miR-125b expression with clinical characteristics and prognosis of VE children were analyzed. Area under ROC curve (AUC) was calculated to evaluate the accuracy of the prognostic value of miR-125b. Univariate analysis and logistic regression analysis were performed to analyze risk factors of the prognoses of VE children. The plasma miR-125b expression was higher in the VE group than in the control group and higher in the severe group than the mild group. MiR-125b expression was associated with status convulsion, hemiplegia, multiple organ injuries, and stress hyperglycemia in VE children. Patients with poor prognosis exhibited higher miR-125b expression than those with good prognosis, and the rate of high miR-125b expression of the patients with poor prognosis (64.10%, 25/39) was higher than that in those with good prognosis (28.92%, 24/83). The AUC of miR-125b expression to predict prognosis of VE children was 0.833. When the cutoff value was 1.715, the diagnostic sensitivity (87.2%), specificity (71.1%), and accuracy (76.2%) were the highest. Status convulsion, stress hyperglycemia, and miR-125b were considered as risk factors for poor prognosis in VE children. Peripheral blood miR-125b expression may be correlated with the severity and prognosis of VE in children.

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Acknowledgments

We would like to acknowledge the helpful comments on this paper received from our reviewers.

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Authors and Affiliations

  1. Department of Pediatrics, Linyi People’s Hospital, No. 27, Jiefang Road, Lanshan Distict, Linyi, Shandong Province, 276003, China

    Qin-Ling Gao & Yun-Xia Ma

  2. Department of Pediatrics, Women & Children’s Health Care Hospital of Linyi, Linyi, 276003, China

    Da-Wei Yuan

  3. Operating Theatre, Daqing Oilfield General Hospital, Daqing, 163000, China

    Qing-Cai Zhang

  4. Department of Neurology, The Second Hospital of Jilin University, Changchun, 130041, China

    Jun Zeng & Hao Li

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  1. Qin-Ling Gao
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Correspondence to Yun-Xia Ma.

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All subjects who participated in the study were informed on the details and their role in the study. All subjects signed the informed consent forms. The Ethics Committee of our hospital approved the study.

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Gao, QL., Ma, YX., Yuan, DW. et al. MicroRNA-125b in peripheral blood: a potential biomarker for severity and prognosis of children with viral encephalitis. Neurol Sci 38, 1437–1444 (2017). https://doi.org/10.1007/s10072-017-2982-x

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