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Erschienen in: Journal of Assisted Reproduction and Genetics 5/2013

01.05.2013 | ASSISTED REPRODUCTION TECHNOLOGIES

Using the oocyte donation model to identify early trophoblast pregnenolone production

verfasst von: Frederick Licciardi, Orkun Tan, Cheongeun Oh

Erschienen in: Journal of Assisted Reproduction and Genetics | Ausgabe 5/2013

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Abstract

Purpose

To investigate production of progesterone’s precursor, pregnenolone, in the early oocyte donation pregnancy.

Methods

Pregnenolone and progesterone were measured on luteal days 21, 28, 35, 60 and 80. Progesterone was measured via the Immulite system, pregnenolone by liquid chromatography separation with tandem mass spectrometric detection.

Results

Progesterone rose significantly from days 35 today 60. Pregnenolone likewise rose significantly from days 35–60, but at a much higher rate, with an increase of 57 % by day 60, 75 % to day 80. The increase in pregnenolone was statistically more significant than the increase in progesterone (p < .05).

Conclusions

This is the first report describing that progesterone’s precursor, pregnenolone, increases with time in the very early pregnancy. Because no corpus luteum is present in oocyte recipients, the main source of pregnenolone is the early placenta. Measurements of pregnenolone may provide information concerning early trophoblast function and may represent a method of assessing placental competency.
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Metadaten
Titel
Using the oocyte donation model to identify early trophoblast pregnenolone production
verfasst von
Frederick Licciardi
Orkun Tan
Cheongeun Oh
Publikationsdatum
01.05.2013
Verlag
Springer US
Erschienen in
Journal of Assisted Reproduction and Genetics / Ausgabe 5/2013
Print ISSN: 1058-0468
Elektronische ISSN: 1573-7330
DOI
https://doi.org/10.1007/s10815-013-9986-0

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