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  • Title: Distribution of luteinizing hormone-releasing hormone receptors in the rat ovary.
    Author: Séguin C, Pelletier G, Dubé D, Labrie F.
    Journal: Regul Pept; 1982 Sep; 4(4):183-90. PubMed ID: 6293004.
    Abstract:
    The distribution of luteinizing hormone-releasing hormone (LHRH) receptors was studied in the adult rat ovary using autoradiography after injection of the stable LHRH agonist 125I-labelled [D-Ser(TBU)6,des-Gly-NH2(10)]LHRH ethylamide (Buserelin) and by radioreceptor assay using the same tracer. In intact cycling female rats, no differences in ovarian LHRH receptor levels could be observed between day diestrus I and day proestrus. Moreover, similar levels are observed in total ovarian homogenate, corpora lutea and the remaining ovarian tissue in adult animals treated with PMSG (pregnant mare's serum gonadotropins) and hCG (human chorionic gonadotropin). Radioautographic data show a comparable distribution of grains over theca interna and externa, granulosa and luteal cells. The present findings indicate the presence of LHRH receptors in both the interstitial and follicular cells throughout all stages of cellular differentiation.
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