Cerebrospinal Fluid Protein Changes in Preeclampsia

Hypertension
Erin CiampaPhilip E Hess

Abstract

The molecular mechanisms underlying seizure susceptibility in preeclampsia are unknown. We hypothesized that altered expression of distinct proteins in the cerebrospinal fluid (CSF) may reflect pathophysiological changes in the central nervous system that contribute to the neurological manifestations of severe preeclampsia. We obtained CSF samples from 13 patients with preeclampsia and 14 control patients during spinal anesthesia before delivery and analyzed them by SOMAscan, an aptamer-based proteomics platform for alterations in 1310 protein levels. Ingenuity Pathway Analysis was conducted to highlight relationships between preeclampsia-specific proteins found to be significantly altered. For 2 of the target proteins, we validated the difference in CSF concentrations by ELISA. SOMAscan revealed 82 proteins, whose expression levels were significantly different (P<0.05) in CSF from patients with preeclampsia versus controls. Principal component analysis achieved perfect separation of the preeclampsia and control groups in 2 dimensions. The differentially expressed proteins converge around 4 signaling molecules: TGF-β (transforming growth factor-β), VEGFA (vascular endothelial growth factor A), angiotensinogen, and IL-6 (interle...Continue Reading

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Citations

Feb 5, 2019·Hypertension·Basky Thilaganathan, Erkan Kalafat
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May 28, 2019·Current Hypertension Reports·Subhi Talal Younes, Michael J Ryan
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Apr 8, 2021·Current Pain and Headache Reports·Eliza C Miller, Sarah Vollbracht
Jun 11, 2021·Stroke; a Journal of Cerebral Circulation·T Michael De SilvaFrank M Faraci
Mar 23, 2020·American Journal of Obstetrics and Gynecology·Scott A ShainkerS Ananth Karumanchi

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