title: The effect of 5-fluorouracil on rat adrenal function.
abstract: This study was undertaken to determine the effects of 5-fluorouracil on corticosteroidogenesis and adrenal size in the rat. The rats were injected intraperitoneally with 5-FU (12.5 mg kg-1 or 25 mg kg-1), normal saline or actinomycin D (0.02 mg kg-1), daily for 10 days. High-dose 5-FU induces adrenal hyperplasia, in association with mild impairment of corticosteroidogenesis (manifest by lower corticosterone and higher ACTH levels). The response to low-dose 5-FU and actinomycin D is of lesser adrenal hyperplasia, relative to high-dose 5-FU (P less than 0.05) and elevated corticosterone levels. There may be a dose-related effect on the suppression of corticosteroidogenesis in the rat by 5-FU.
mesh_terms: D000302:Adrenal Cortex / Q000187:drug effects / Q000378:metabolism / Q000648:ultrastructure; D000305:Adrenal Cortex Hormones / Q000096:biosynthesis*; D000311:Adrenal Glands / Q000187:drug effects / Q000473:pathology*; D000324:Adrenocorticotropic Hormone / Q000097:blood; D000818:Animals; D003345:Corticosterone / Q000097:blood; D005472:Fluorouracil / Q000633:toxicity*; D008297:Male; D009929:Organ Size / Q000187:drug effects; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000305:Adrenal Cortex Hormones; D000324:Adrenocorticotropic Hormone; D005472:Fluorouracil; D003345:Corticosterone