Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3 Suppl
pubmed:dateCreated
1992-4-6
pubmed:abstractText
Conjugation reactions, such as the formation of sulfates, glucuronides and amino acid derivatives of biologically active compounds, are classically considered as detoxication processes. In essence, common nonpolar compounds are rendered less active by the formation of water-soluble metabolites, which then can readily be excreted in the urine. In the past decade, however, it has become clear that some natural metabolites become more active rather than less so by the formation of such conjugates. Several compounds in this special group will be considered in this article; namely, glucuronide and hydroxyphenylamide conjugates of retinoic acid, glutathione and cysteine conjugates of halogenated hydrocarbons, glucuronide conjugates of various xenobiotics and polyglutamates of folic acid and its inhibitors. The metabolism, biological activity and toxicity of the parent molecule is profoundly affected in complex ways by such reactions. Thus, the historical concept of conjugation reactions as general detoxication processes is no longer tenable.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-3166
pubmed:author
pubmed:issnType
Print
pubmed:volume
122
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
615-24
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Enhancement of biological activity by conjugation reactions.
pubmed:affiliation
Department of Biochemistry and Biophysics, Iowa State University, Ames 50011.
pubmed:publicationType
Journal Article, Review