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Titolo:
Expression of messenger RNA for gonadotropin receptor in the granulosa layer during the ovulatory cycle of hens
Autore:
Yamamura, N; Takeishi, M; Goto, H; Tagami, M; Mizutani, T; Miyamoto, K; Doi, O; Kamiyoshi, P;
Indirizzi:
Gifu Univ, Fac Agr, Dept Anim Sci & Technol, United Grad Sch Agr Sci, Gifu5011193, Japan Gifu Univ Gifu Japan 5011193 United Grad Sch Agr Sci, Gifu5011193, Japan Nippon Formula Feed Mfg Co Ltd, Kamisu, Ibaraki 3140103, Japan Nippon Formula Feed Mfg Co Ltd Kamisu Ibaraki Japan 3140103 140103, Japan Fukui Med Univ, Dept Biochem, Matsuoka, Fukui 9101193, Japan Fukui Med Univ Matsuoka Fukui Japan 9101193 atsuoka, Fukui 9101193, Japan
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR AND INTEGRATIVE PHYSIOLOGY
fascicolo: 2-3, volume: 129, anno: 2001,
pagine: 327 - 337
SICI:
1095-6433(200106)129:2-3<327:EOMRFG>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOLLICLE-STIMULATING-HORMONE; RIBONUCLEIC-ACID LEVELS; HUMAN CHORIONIC-GONADOTROPIN; INDUCED UP-REGULATION; N-TERMINAL REGION; LUTEINIZING-HORMONE; PREOVULATORY FOLLICLES; GALLUS-DOMESTICUS; DOWN-REGULATION; OVARIAN FOLLICLE;
Keywords:
follicle-stimulating hormone receptor mRNA; granulosa cells; hen; luteinizing hormone; luteinizing hormone receptor; mRNA; progesterone; ovulatory cycle; solution hybridization RNase protection assay;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Kamiyoshi, P Gifu Univ, Fac Agr, Dept Anim Sci & Technol, United Grad Sch Agr Sci, 1-1 Yanagido, Gifu 5011193, Japan Gifu Univ 1-1 Yanagido Gifu Japan 5011193 ifu 5011193, Japan
Citazione:
N. Yamamura et al., "Expression of messenger RNA for gonadotropin receptor in the granulosa layer during the ovulatory cycle of hens", COMP BIOC A, 129(2-3), 2001, pp. 327-337

Abstract

The present experiments were conducted to evaluate the mRNA levels of luteinizing hormone receptor (LHR) and follicle-stimulating hormone receptor (FSHR) in granulosa layers during the ovulatory cycle of hens, in relation tothe release of LH and steroid hormones. After the release of LH, progesterone (P4) and estradiol-17 beta (E2), found 4-5 h before ovulation, LHR and FSHR mRNA levels were observed to decrease in the granulosa layers of the largest (F1) and second largest (F2) preovulatory follicles, with the greatest in the LHR mRNA level of FI. PI concentrations in the granulosa layers of Fl and F2 increased 4-5 h before ovulation, with greater in Fl than in F2. F2 concentrations in the theca layers were greater in F2 than in F1 throughout the ovulatory cycle. Also, the injection of ovine LH caused decreasesin the mRNA levels of LHR and FSHR in the granulosa layers. However, thesedecreases were abolished by the injection of aminoglutethimide, an inhibitor of steroid synthesis. These results suggest that in hen granulosa cells,the mRNA levels of not only LHR but also FSHR are down-regulated by LH andthe down-regulation may be mediated steroid hormones. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 01:05:13