this study shows that pregnant rats supplemented with Retinoic acid have less pregnenolone and progesterone in their ovaries than rats supplemented with Retinyl acetate.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1177011/
The new results give further support to the conclusions
that at both times in pregnancy studied the
ovaries of rats maintained on a vitamin A-deficient
diet supplemented with retinoic acid are defective
in the synthesis and secretion of progesterone and
200c-hydroxypregn-4-en-3-one.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1177011/
The new results give further support to the conclusions
that at both times in pregnancy studied the
ovaries of rats maintained on a vitamin A-deficient
diet supplemented with retinoic acid are defective
in the synthesis and secretion of progesterone and
200c-hydroxypregn-4-en-3-one.
