Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1990-2-15
pubmed:abstractText
A 30 day exposure of C. punctatus to sublethal levels of phenol, ammonia, mercuric chloride, cadmium chloride and a mixture of the four resulted in an overall activation of guaiacol peroxidase and depression of iodide peroxidase (IPOD) activity and blood T4 titre. Interestingly enough, in case of 15 day ammonia and 1 day mercury exposures, an increase of IPOD activity was accompanied by a decrease in T4 titre. In general, phenol, mercury, cadmium and the mixture of pollutants were found to inhibit LP activity by 56% to 85% while ammonia inhibited lysosomal protease (LP) activity by 70%. Alterations in acid phosphatase (AP) activity indicate changes in the lysosomal membrane characteristics caused by these toxicants. Considering the concomitant alterations in IPOD, T4, LP and AP it is surmised that thyroid function in C. punctatus is influenced by the pollutants by two pathways, one via IPOD pathway affecting T4 synthesis and the other via lysosomal pathway affecting T4 release.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0019-5189
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
65-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Influence of industrial pollutants on thyroid function in Channa punctatus (Bloch).
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't