EurekaMag.com logo
+ Translate

Estrogen production by fetal and infantile rat ovaries


, : Estrogen production by fetal and infantile rat ovaries. Reproduction, Nutrition, Development 33(2): 129-136

The de novo production of estrone and estradiol by the fetal and infantile rat ovary and its regulation by cAMP, LH and FSH were investigated. Basal estrogen secretion was not demonstrable before d 5 after birth. However, the fetal ovary was responsive to cAMP as early as 14 d old. Estrone was the main estrogen secreted. Steroid aromatase inhibitors inhibited cAMP-stimulated estrone secretion. Responsiveness to LH and FSH appeared at 5 d after birth. The proportion of estradiol grew more important with advancing age, becoming predominant at 7 d.

(PDF 0-2 workdays service)

Accession: 002373557

PMID: 8395854

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Vaskivuo, T.E.; Mäentausta, M.; Törn, S.; Oduwole, O.; Lönnberg, A.; Herva, R.; Isomaa, V.; Tapanainen, J.S., 2005: Estrogen receptors and estrogen-metabolizing enzymes in human ovaries during fetal development. Estrogen action plays a crucial role in many processes throughout the human life span, including development. Estrogens are pivotal in the regulation of female reproduction, but little is known about their role during ovarian development. To bette...

Oehler, I.E., 1951: The ovarian epithelium and its relation to oogenesis; investigation of fetal and infantile ovaries. Acta Anatomica 12(1-2): 1-29

Weniger J P.; Zeis A., 1990: Action of lh fsh and dibutyryl cyclic amp on the conversion of tritiated 19 hydroxyandrostenedione into estrogens by fetal and infantile rat ovaries in organ culture. Ovaries from 18-21-day-old foetal as well as from 2-10-day-old infantile rats were cultured in vitro in the presence of [3H]19-hydroxyandrostenedione and in the presence or absence of LH, FSH or (Bu)2 cAMP, and oestrone and oestradiol formed were...

Vague, J.; Miller, G.; Codaccioni, J.L.; Favier, G., 1958: Infantilism-nanism in 2 sisters: filiform ovaries & gonadal agenesis in one; infantile ovaries in the other. Annales D'endocrinologie 19(1): 139-144

Burkhart, M.N.; Juengel, J.L.; Smith, P.R.; Heath, D.A.; Perry, G.A.; Smith, M.F.; Garverick, H.A., 2010: Morphological development and characterization of aromatase and estrogen receptors alpha and beta in fetal ovaries of cattle from days 110 to 250. To better understand the role of estradiol-17 beta in fetal ovarian development, presence and localization of cytochrome P450 aromatase (P450arom) and estrogen receptors alpha (ER alpha ) and beta (ER beta ) proteins were characterized in fetal ov...

Frieden, E.H.; Yuhara, M.; Cohen, A.I., 1963: Stimulation by FSH of estrogen production by rat ovaries in vitro. FED PROC 22(2 Pt 1): 531

Usuki S., 1990: Regulation of renin production by fsh and estrogen in rat ovaries. The presence of renin and renin messenger ribonucleic acid (mRNA) in rat ovary and the effects of follicle-stimulating hormone (FSH) and estrogen on the expression of ovarian renin gene were confirmed. In adult 4-day cycling rats, the concentratio...

Lacroix, E.; Eechaute, W.; Leusen, I., 1968: Influence of lynestrenol on estrogen production by rat ovaries. The estradiol production by incubated ovaries from individual rats and the transformation from "in vitro" added testosterone to estradiol by these ovaries are greatly depressed by a daily peroral or parenteral administration of 2 mg lyne...

Moor R.M., 1973: Estrogen production by individual follicles explanted from ovaries of sheep. Journal of Reproduction & Fertility 32(3): 545-548

Kulikova, L.F.; Levenets, S.A.; Tuchkina, I.A.; Cherevatova, S.Kh., 1988: Estrogen production in adolescent girls with primary sclerocystic ovaries. Akusherstvo i Ginekologiia: 25-27