Effect of acute and chronic psychogenic stress on corticoadrenal and pituitary-thyroid hormones in male rats.
The effects of acute and chronic stress on serum corticosterone and pituitary-thyroid hormones were studied in male Wistar rats. Acute noise activated both the pituitary-adrenal and pituitary-thyroid axes. Chronic noise did not modify the basal serum levels of either corticosterone or pituitary-thyroid hormones. A decreased corticosterone response to noise was observed in chronically stressed rats, but the pituitary-thyroid response was the same in control and chronically stressed rats, suggesting that the mechanisms which control the responsiveness of both axes to a repeated stimulus are dissociated.
D000324:Adrenocorticotropic Hormone / Q000494:pharmacology; D000818:Animals; D003345:Corticosterone / Q000097:blood*; D006801:Humans; D008297:Male; D009622:Noise; D010907:Pituitary Hormones / Q000097:blood*; D051381:Rats; D011919:Rats, Inbred Strains; D013315:Stress, Psychological / Q000097:blood*; D013963:Thyroid Hormones / Q000097:blood*; D013972:Thyrotropin / Q000097:blood; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000097:blood
D010907:Pituitary Hormones; D013963:Thyroid Hormones; D014284:Triiodothyronine; D000324:Adrenocorticotropic Hormone; D013972:Thyrotropin; D013974:Thyroxine; D003345:Corticosterone