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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1976-2-19
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pubmed:abstractText |
The mechanism responsible for the changes in serum and liver gamma-glutamyl transpeptidase (gamma-GT) activity was studied in a model of experimental hexachlorobenzene porphyria in rabbits. Porphyria followed the administration of hexachlorobenzene in doses of 280 mumol - kg-1 body weight, which were given daily through a gastric tube over a 20-day period. Serum gamma-GT activity and the activities of the lysosomal enzymes beta-N-acetylglucosaminidase and alpha-mannosidase were increased, whereas L-aspartate: 2-oxoglutarate aminotransferase and L-alanine: 2-oxoglutarate aminotransferase and L-alanine: 2-oxoglutarate aminotransferase remained unaltered. There was a considerable increase in liver microsomal protein, gamma-GT, cytochrome P-450, anilinehydroxylase, aminopyrine-demethylase and delta-aminolevulinic acid synthase. In the liver gamma-GT was detected in the microsomes as well as in the cytoplasm where enzymatic activity was higher. The high correlation coefficient between liver gamma-GT, cytochrome P-450 and delta-aminolevulinic acid synthase witnesses a hexachlorobenzene-induced gamma-GT formation in the liver. A statistically significant correlation between serum and liver gamma-GT activity was also found. These data strongly suggest that the increase in serum gamma-GT activity may result from the induction of the enzyme in the liver.
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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/Acetylglucosaminidase,
http://linkedlifedata.com/resource/pubmed/chemical/Hexachlorobenzene,
http://linkedlifedata.com/resource/pubmed/chemical/Mannosidases,
http://linkedlifedata.com/resource/pubmed/chemical/Porphyrins,
http://linkedlifedata.com/resource/pubmed/chemical/gamma-Glutamyltransferase
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pubmed:status |
MEDLINE
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pubmed:issn |
0013-9432
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
8-20
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:233-Acetylglucosaminidase,
pubmed-meshheading:233-Animals,
pubmed-meshheading:233-Hexachlorobenzene,
pubmed-meshheading:233-Liver,
pubmed-meshheading:233-Mannosidases,
pubmed-meshheading:233-Porphyrias,
pubmed-meshheading:233-Porphyrins,
pubmed-meshheading:233-Rabbits,
pubmed-meshheading:233-gamma-Glutamyltransferase
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pubmed:year |
1976
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pubmed:articleTitle |
Studies on the mechanism of the changes in serum and liver gamma-glutamyl transpeptidase activity. II. Experimental hexachlorobenzene porphyria in rabbits.
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pubmed:publicationType |
Journal Article
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