Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1982-4-22
pubmed:abstractText
Male weanling fischer-344 rats were fed a selenium (Se)-vitamin E (VE) deficient Torula yeast basal diet or that diet supplemented with a graded levels of SE (0.2-6.0 ppm as Na2SeO3) or VE (100 iu/kg as all-rac-2-tocopheryl acetate), or both, for 4 or 6 weeks. Se deficiency and excess (6.0 ppm) markedly depressed in vivo covalent binding of aflatoxin (AFB1) to macromolecules in livers of rats killed 2 hours after an i.p. dose of 1 mg/kg tritiated AFB1. VE supplementation had no effect. Prior phenobarbital (PB) treatment generally decreased adducts without changing diet-related trends. Some hepatic enzyme capabilities were also measured. Cytochrome b5 content and cytochrome c reductase activity were unaffected by diet. VE increased cytochrome P-450 content, ethylmorphine N-demethylase and benz(alpha)pyrene hydroxylase activities; all these were unaffected by Se levels. Se deficiency and excess (but not VE deficiency) increased glucuronyl transferase. PB induction affected all diet groups and was more in agreement with MFO activity than transferase. Adduct formation was more consistently related to transferase activity than to MFO activities. The contrasting effects of SE and VE on AFB1 adducts in rats and chicks are discussed.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-3166
pubmed:author
pubmed:issnType
Print
pubmed:volume
112
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
324-31
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Effects of dietary selenium and vitamin E on hepatic mixed-function oxidase activities and in vivo covalent binding of aflatoxin B1 in rats.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't