Functional histology of the ovarian follicles as determined by follicular fluid concentrations of steroids and IGF-1 in Camelus dromedarius. (April 2015)

• Record Type: Journal Article
• Authors: Kafi, M.; Maleki, M.; Davoodian, N.
• Is Part Of: Research in veterinary science. Volume 99(2015)
• Page Start: 37
• Page End: 40
• Publication Date: 2015-04
• Subjects: Ovarian follicles -- Histology -- Steroids -- Dominant follicles -- Camelus dromedarius; Veterinary medicine -- Periodicals; Veterinary Medicine -- Periodicals; Médecine vétérinaire -- Périodiques; Médecine vétérinaire -- Recherche -- Périodiques; Diergeneeskunde; 636.089
• DOI: 10.1016/j.rvsc.2015.01.001
• Languages: English
• ISSNs: 0034-5288

Abstract

Highlights: In dromedary camel: Estrogenic large follicles have suppressive effects on the growth of other follicles. Gross opaqueness of the surface follicle is a reliable sign for follicular atresia. High follicular fluid estradiol-17β concentrations are a sign of health of follicles. Abstract: Ovaries were collected from sexually mature non-pregnant dromedary she-camels. Follicles 6 to 19 mm in diameter per pair of ovaries were randomly selected and classified into clear (n = 30), or opaque (n = 14) based on macroscopic examination of the follicle surface, and then were divided into four classes: clear follicles with 6– 9.9 and 10–19 mm diameter; opaque follicles with 6– 9.9 and 10–19 mm diameter. Follicular fluid (FF) was aspirated for measurement of estradiol-17β, progesterone and IGF-I concentrations, and then a section of tissue through the exposed surface of the follicle wall was removed and fixed in and processed for histological examination. Mean (±SE) number of clear follicles observed on the ovaries that contained a large dominant follicle was less than that on the ovaries which contained a large atretic follicle (p < 0.05; 2.6 ± 1 vs 8.6 ± 0.6). In conclusion, the estrogenic large follicles have suppressive effects on the growth of other follicles.