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  • Title: Adaptation of anterior pituitary hormones to chronic noise stress in male rats.
    Author: Armario A, Castellanos JM, Balasch J.
    Journal: Behav Neural Biol; 1984 May; 41(1):71-6. PubMed ID: 6431962.
    Abstract:
    We have studied the effects of acute and chronic noise on serum levels of pituitary hormones in male Wistar rats. Acute noise increased serum levels of corticosterone, prolactin, and luteinizing hormone and decreased serum GH. FSH was unaffected by this stressor. Chronic noise did not modify basal levels of any hormone studied, however responsiveness of some hormones to the same stimuli was altered. Reduced corticosterone, prolactin, and GH responses to noise was observed after previous chronic exposure to this stimuli. LH response followed the same pattern although it did not reach statistical significance. It might be concluded that adaptation to a repeated stress stimulus is not confined to the pituitary-adrenal axis, however, the degree of adaptation could vary between different hormones.
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