MicroRNAs in temporal lobe epilepsy: a systematic review.

About 30% of patients with epilepsy have drug-resistant seizures. The aim of the current endeavor was to systematically review the existing evidence on the potential applications of microRNAs as biomarkers in people with difficult to treat temporal lobe epilepsy (TLE). MEDLINE (accessed from PubMed) and Scopus from inception to March 18, 2020 were systematically searched for related published articles. In both electronic databases, the following search strategy was implemented, and these keywords (in the title/abstract) were used: "microRNA" AND "temporal lobe epilepsy." Articles written in English that were human studies in people with epilepsy were all included in this search. We could identify 16 articles about different aspects of microRNAs in the serum of patients with TLE. However, only three studies robustly investigated microRNAs as potential biomarkers in the diagnosis of drug-resistant TLE (microRNA-155 (upregulated), microRNA-129-2-3p (upregulated), microRNA-153 (downregulated)). One small study provided class II, and two small studies provided class III evidence. While this systematic review identified three studies that provided some evidence on the potential applications of circulating serum microRNAs as biomarkers in people with drug-resistant TLE, the evidence is not robust yet. While these findings provide a new horizon, substantial challenges remain before the roles of microRNAs as biomarkers in the diagnosis of drug-resistant TLE can be translated into clinical practice.

Citation

Ali A Asadi-Pooya, Amir Tajbakhsh, Amir Savardashtaki. MicroRNAs in temporal lobe epilepsy: a systematic review. Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology. 2021 Feb;42(2):571-578

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PMID: 33389245

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