Identification of unusual oxysterols biosynthesised in human pregnancy by charge-tagging and liquid chromatography - mass spectrometry.

Identification of unusual oxysterols biosynthesised in human pregnancy by charge-tagging and liquid chromatography - mass spectrometry.
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DOI:
10.3389/fendo.2022.1031013
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发表时间:
2022
影响因子:
5.2
通讯作者:
Griffiths, William J.
Griffiths, William J.
中科院分区:
医学2区
文献类型:
--
作者:
Dickson, Alison L.;Yutuc, Eylan;Thornton, Catherine A.;Wang, Yuqin;Griffiths, William J.

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本研究的目的是鉴定胎盘、脐带血血浆、母体血浆和羊水中的氧固醇和任何下游代谢物,以提高我们对这些分子参与妊娠的认识。我们证实了先前在一篇出版物中报道的人胎盘中20 S-羟基胆固醇的鉴定,并提出了从22 R-羟基胆固醇到可能结构为3β,20 R,22 R-三羟基胆甾-5-烯-(25 R)26-酸的C27胆汁酸的途径。该途径不仅在胎盘中是明显的,而且在脐带血浆、母体血浆和羊水中也发现了途径中间体,但在非妊娠妇女中没有发现。
The aim of this study was to identify oxysterols and any down-stream metabolites in placenta, umbilical cord blood plasma, maternal plasma and amniotic fluid to enhance our knowledge of the involvement of these molecules in pregnancy. We confirm the identification of 20S-hydroxycholesterol in human placenta, previously reported in a single publication, and propose a pathway from 22R-hydroxycholesterol to a C27 bile acid of probable structure 3β,20R,22R-trihydroxycholest-5-en-(25R)26-oic acid. The pathway is evident not only in placenta, but pathway intermediates are also found in umbilical cord plasma, maternal plasma and amniotic fluid but not non-pregnant women.
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