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Effects of single and repeated cigarette smoke-exposures on the activities of aryl hydrocarbon hydroxylase, epoxide hydratase and UDP glucuronosyltransferase in rat lung, kidney and small intestinal mucosa

Journal Article · · Res. Commun. Chem. Pathol. Pharmacol.; (United States)
OSTI ID:5204203
A single exposure to cigarette smoke for one hour decreased the pulmonary microsomal epoxide hydratase activity in rats. A more rapid decrease was seen after 5 consecutive exposures, one hour daily. Meanwhile, the activity of pulmonary aryl hydrocarbon hydroxylase (AHH) increased several fold. In small intestinal mucosa the activities of AHH and epoxide hydratase were enhanced both by single and repeated cigarette smoke-exposures. In kidney the activity of AHH increased, whereas neither that of epoxide hydratase nor of UDP glucuronosyl-transferase changed. In small intestinal mucosa the activity of UDP glucuronosyltransferase increased after repeated smoke-exposures, but in lung no clear change in the UDP glucuronosyltransferase activity was detected.
Research Organization:
Univ. of Turku, Finland
OSTI ID:
5204203
Journal Information:
Res. Commun. Chem. Pathol. Pharmacol.; (United States), Journal Name: Res. Commun. Chem. Pathol. Pharmacol.; (United States) Vol. 17:1; ISSN RCOCB
Country of Publication:
United States
Language:
English