Relationship between the concentration of ergothioneine in plasma and the likelihood of developing pre-eclampsia

Louise C. Kenny, Leslie W. Brown, Paloma Ortea, Robin Tuytten, Douglas B. Kell
In: medRxiv · 2022 · doi:10.1101/2022.12.19.22283617 · W4312036514
preprint OA: green CC0
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Abstract

Abstract Ergothioneine, an antioxidant nutraceutical mainly at present derived from the dietary intake of mushrooms, has been suggested as a preventive for pre-eclampsia. We analysed early pregnancy samples for a cohort of 432 first time mothers as part of the Screening for Endpoints in Pregnancy (SCOPE, European branch) project to determine the concentration of ergothioneine in their plasma. There was a weak association between the ergothioneine levels and maternal age, but none for BMI. Of these 432 women, 97 went on to develop pre-term (23) or term (74) pre-eclampsia. If a threshold was set at the 90 th percentile of the reference range in the control population (≥ 462 ng/mL), only one of these 97 women (1%) developed pre-eclampsia, versus 97/432 (22.5%) whose ergothioneine level was below this threshold. One possible interpretation of these findings, consistent with previous experiments in a reduced uterine perfusion model in rats, is that ergothioneine may indeed prove protective against pre-eclampsia in humans. An intervention study of some kind now seems warranted.

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