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  • Title: Pattern of adenohypophyseal hormone changes in male rats following chronic stress.
    Author: Taché Y, Du Ruisseau P, Ducharme JR, Collu R.
    Journal: Neuroendocrinology; 1978; 26(4):208-19. PubMed ID: 683471.
    Abstract:
    To delineate the pattern of adenohypophyseal hormone secretion following chronic stress, adult male rats were exposed daily to 6 h of cold, forced exercise or immobilization for 3, 6, 10, 15, 28 or 42 consecutive days. Groups of these animals were sacrificed at the end of the last stress sessions, and plasma growth hormone (GH), luteinizing hormone (LH), prolactin (Prl) and follicle-stimulating hormone (FSH) levels were measured by radioimmunoassay (RIA). Irresspective of the different stimuli used, long-term stress induced a morphologic and hormonal response characterized by decreased ponderal growth, adrenal enlargement, thymus involution and significant diminutions in GH, Prl and LH levels with no modifications in FSH titers. The magnitude and duration of these changes varied with the severity of the stressors.
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