Linked Life Data

891100

Source:http://linkedlifedata.com/resource/pubmed/id/891100

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1977-10-31
pubmed:abstractText
1. The effect of hexachlorobenzene feeding on liver delta-aminolaevulinate synthase, uroporphyrinogen decarboxylase and cytochrome P 450 was studied at various time-intervals in siderotic and non-siderotic rats. 2 In the non-siderotic group hexachlorobenzene feeding led to a progress decrease in liver uroporphyrinogen decarboxylase activity, accompanied by a progressive increase in delta-aminolaevulinate synthase activity. Cytochrome P 450 concentrations were above normal throughout but fell toward the end of the experiment. 3. Similar but more marked changes were found in the siderotic animals. The fall in uroporphyrinogen decarboxylase activity occurred earlier and was significantly greater in these animals, whereas the increase in delta-aminolaevulinate synthase activity was consistently larger. Liver cytochrome P 450 concentration also rose but to a lesser extent than that in the non-siderotic rats. 4. Hexachlobenzene-induced porphyria would seem to be attributable to inhibition or inactivation of hepatic uroporphyrinogen decarboxylase. Hepatic siderosis has a synergistic effect with hexachlorobenzene on this enzyme and may exert additional effects by promoting cytochrome P 450 turnover.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0301-0538
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
111-5
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Effects of hexachlorobenzene feeding and iron overload on enzymes of haem biosynthesis and cytochrome P 450 in rat liver.
pubmed:publicationType
Journal Article