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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4-6
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pubmed:dateCreated |
1983-11-23
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pubmed:abstractText |
Rats malnourished since birth and fed a protein-free diet for 2 wk showed almost undetectable levels of liver microsomal aryl hydrocarbon (benzo[a]pyrene) hydroxylase. Treatment with benzo[a]pyrene rapidly enhanced this activity to levels higher than those observed with untreated normal rats. The carbon-monoxide-reduced cytochrome P-450 spectral peak was shifted from 452 nm in malnourished untreated rats to 448 nm in malnourished benzo[a]pyrene-injected rats and resulted in increases in the intensity of several microsomal protein bands (MW range 46,000-60,000) separated by gel electrophoresis. Malnourished rats then fed with a protein diet exhibited an important increase in aryl hydrocarbon hydroxylase activity, an increase in the intensity of microsomal protein electrophoretic bands (MW range 46,000-60,000), and a shift of the carbon-monoxide-reduced cytochrome P-450 spectral peak from 452 nm to 450 nm. These results suggest that alterations in cytochrome P-450 species related to benzo[a]pyrene metabolism might explain the modulation of this activity by nutritional effects.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Aryl Hydrocarbon Hydroxylases,
http://linkedlifedata.com/resource/pubmed/chemical/Benzo(a)pyrene,
http://linkedlifedata.com/resource/pubmed/chemical/Benzopyrenes,
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome P-450 Enzyme System,
http://linkedlifedata.com/resource/pubmed/chemical/Proteins
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pubmed:status |
MEDLINE
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pubmed:issn |
0098-4108
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
11
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
519-33
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:6312060-Animals,
pubmed-meshheading:6312060-Aryl Hydrocarbon Hydroxylases,
pubmed-meshheading:6312060-Benzo(a)pyrene,
pubmed-meshheading:6312060-Benzopyrenes,
pubmed-meshheading:6312060-Cytochrome P-450 Enzyme System,
pubmed-meshheading:6312060-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:6312060-Female,
pubmed-meshheading:6312060-Liver,
pubmed-meshheading:6312060-Molecular Weight,
pubmed-meshheading:6312060-Nutritional Physiological Phenomena,
pubmed-meshheading:6312060-Proteins,
pubmed-meshheading:6312060-Rats,
pubmed-meshheading:6312060-Rats, Inbred Strains
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pubmed:articleTitle |
Modulation of rat liver aryl hydrocarbon (benzo[a]pyrene) hydroxylase activity by nutritional effects.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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