Downregulation of CSF-derived miRNAs miR-142-3p and miR-17-5p may be associated with post-dural puncture headache in pregnant women upon spinal anesthesia
AUTOR(ES)
Yücel, Duygu
FONTE
Brazilian Journal of Anesthesiology
DATA DE PUBLICAÇÃO
2022
RESUMO
Abstract Background: Postdural puncture headache (PDPH) develops due to puncture of the dura mater. The risk factors that influence PDPH incidence are Body Mass Index (BMI), sex, spinal needle type, history of headache, and loss of Cerebrospinal fluid (CSF) volume, yet there is no consensus on these risk factors. The pathophysiology of PDPH is poorly understood. The molecular pathways that may lead to PDPH are unknown. In this study, CSF – derived microRNAs (miRNAs) were investigated for their potential to predispose to PDPH in a population of pregnant women. Method: Pregnant women going under cesarean section via spinal anesthesia were included in the study with the criteria of the subjects presenting American Society of Anesthesiologists (ASA) physical status I. Patients were classified into two groups as with PDPH (n = 10) and without PDPH (n = 12) based on International Headache Society’s PDPH definition. CSF-derived microRNAs were investigated for their differential expression levels in PDPH patients compared with the healthy controls using microfluidic gene expression platform. Results: Out of seventy-six miRNAs, two miRNAs, namely miR-142-3p and miR-17-5p, were significantly downregulated in PDPH patients (Mann-Whitney U test, p < 0,05). BMI and age did not influence PDPH occurrence. The mean visual analogue scale (VAS) of the PDPH patients was 6,8 out of 10. Conclusion: We have shown that downregulation of miR-142-3p and miR-17-5p may predispose pregnant women to PDPH upon spinal anesthesia. However, which genes are targeted by miR-142-3p and miR-17-5p-mediated effect on PDPH remains to be elucidated.
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