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https://doi.org/10.1002/1098-2795(200103)58:33.0.CO;2-Q
DC Field | Value | |
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dc.title | Enhanced dehydroepiandrosterone synthesis by amnion compared to chorion: A comparative study using the reverse-isotope dilution technique | |
dc.contributor.author | Loganath, A. | |
dc.contributor.author | Peh, K.L. | |
dc.contributor.author | Wong, Y.C. | |
dc.contributor.author | Ng, S.C. | |
dc.date.accessioned | 2016-11-08T08:24:05Z | |
dc.date.available | 2016-11-08T08:24:05Z | |
dc.date.issued | 2001 | |
dc.identifier.citation | Loganath, A., Peh, K.L., Wong, Y.C., Ng, S.C. (2001). Enhanced dehydroepiandrosterone synthesis by amnion compared to chorion: A comparative study using the reverse-isotope dilution technique. Molecular Reproduction and Development 58 (3) : 276-280. ScholarBank@NUS Repository. <a href="https://doi.org/10.1002/1098-2795(200103)58:33.0.CO;2-Q" target="_blank">https://doi.org/10.1002/1098-2795(200103)58:33.0.CO;2-Q</a> | |
dc.identifier.issn | 1040452X | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/129568 | |
dc.description.abstract | With a view to establishing whether the term human fetal membranes possess the enzymic ability to synthesize dehydroepiandrosterone (DHEA) from pregnenolone, homogenates of amnion and chorion obtained from women (n = 5, age 27-34 years) after spontaneous labor at term (37-42 weeks gestation) from uncomplicated pregnancies were incubated with [7n-3H]pregnenolone as substrate. Reverse-isotope dilution analysis gave positive identification of [3H]DHEA acetate in all incubations of viable tissues. No such metabolite was evident in control incubations with heat-denatured tissues. Virtually radiochemically pure esters under three recrystallizations were obtained with mean concentrations of between 15787 and 30137 dpm mol-1 for amnion which was considerably higher than that of chorionic tissues at 4316-5528 dpm mol-1. The magnitude of elevation in DHEA production by amnion was noted to be between 3.6- and 5.5-fold higher than the corresponding chorion. This study provides evidence that the fetal membranes possess 17-α hydroxylase and C-17, 20 lyase activities capable of synthesis of DHEA, an important androgen necessary for aromatization to estrogens in need by the developing fetus. © 2OO1 Wiley-Liss, Inc. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/1098-2795(200103)58:33.0.CO;2-Q | |
dc.source | Scopus | |
dc.subject | Amnion | |
dc.subject | Chorion | |
dc.subject | DHEA synthesis | |
dc.subject | Fetoplacental steroidogenesis | |
dc.subject | Pregnenolone substrate | |
dc.type | Article | |
dc.contributor.department | OBSTETRICS & GYNAECOLOGY | |
dc.description.doi | 10.1002/1098-2795(200103)58:33.0.CO;2-Q | |
dc.description.sourcetitle | Molecular Reproduction and Development | |
dc.description.volume | 58 | |
dc.description.issue | 3 | |
dc.description.page | 276-280 | |
dc.description.coden | MREDE | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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