The only effects of recombinant follicle-stimulating hormone for ovulation induction in the pre-implantation period of rats
Küçük Resim Yok
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Objective: The aim of this study was to evaluate the changes in follicular development, serum hormonal levels, and endometrium in the pre-implantation period of rats by using recombinant FSH (rFSH) without human chorionic gonadotropin (hCG). Methods: Thirty female rats were studied in six groups of five specimens. Two groups determined as controls (groups 1 and 2). Two groups received constant doses of rFSH (groups 3 and 4) and other two decreasing doses (groups 5 and 6). One of the paired groups was mated. Uterus, ovaries, and blood samples were taken from non-mated groups (groups 1, 3, and 5) at the proestrus period and from mated groups (groups 2, 4, and 6) in the pre-implantation period. Results: In non-mated groups antral follicles and corpus luteum periodicum and in mated groups antral follicles, corpus luteum periodicum, and corpus luteum graviditatis were increased in rFSH groups, especially in decreasing dose groups. Estradiol (E2) levels were increased and progesterone (P)/E2 ratio was significantly decreased in decreasing dose groups. Endometrium surface epithelium was columnar, irregular, and folded in rFSH groups. Endometrium glandular epithelium was cuboidal in all groups. In decreasing dose groups endometrial stroma was smooth and fibroblastic. Mitotic indices of endometrium surface, glandular epithelium, and stroma were significantly decreased in rFSH groups. Primary follicles and P levels showed no change. Conclusion: It seems likely that decreasing doses of rFSH might be used in order to improve follicular development, although it has negative effects with E2 on endometrium in the pre-implantation period of rats. © 2006 Springer-Verlag.
Açıklama
Anahtar Kelimeler
Endometrium; Fsh; Hcg; Ovary; Ovulation Induction, Chorionic Gonadotropin; Estradiol; Progesterone; Recombinant Follitropin; Animal Experiment; Article; Blood Sampling; Controlled Study; Corpus Luteum; Endometrium; Female; Fibroblast; Follicular Phase; Hormone Blood Level; Mitosis Index; Nonhuman; Ovary; Ovary Follicle Cell; Ovulation Induction; Preimplantation Embryo; Proestrus; Rat; Uterus; Animals; Dose-Response Relationship, Drug; Endometrium; Female; Follicle Stimulating Hormone; Follicular Phase; Ovary; Ovulation Induction; Rats; Rats, Wistar; Recombinant Proteins
Kaynak
Archives of Gynecology and Obstetrics
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
275
Sayı
2
