Linked Life Data

17547457

Source:http://linkedlifedata.com/resource/pubmed/id/17547457

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-6-22
pubmed:abstractText
The diterpenes previously isolated from the leaves of Croton zambesicus were tested to evaluate their vasorelaxant activity on the Wistar rat aorta. Their vasorelaxant effect was compared to a series of synthetic trachylobanes and related polycyclic compounds on KCl- or noradrenaline-induced contractions in order to evaluate structure-activity relationships. We demonstrate the vasorelaxant properties of some pure trachylobane diterpenes at low concentration (IC50 < 10 microM) on KCl-induced contractions, but none have a significant effect in noradrenaline-induced contractions. Comparing structures and activity we observed that a C-14 carbonyl group associated with a C-15 hydroxy or ketone function or a C-3 carbonyl associated with a hydroxymethyl group plays an important role in the vasorelaxant activity of trachylobane diterpenes. We also observed that the absolute configuration or the cleavage of the C13-C16 cyclopropane bond does not have a marked effect on the activity. The cytotoxicity of all of these compounds has also been evaluated on HeLa cells in order to verify that the vasorelaxant activity was not correlated with general cytotoxicity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0163-3864
pubmed:author
pubmed:issnType
Print
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
910-7
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Vasorelaxant activity of diterpenes from Croton zambesicus and synthetic trachylobanes and their structure-activity relationships.
pubmed:affiliation
Laboratoire de Pharmacognosie, Unité d'Analyse Chimique et Physico-Chimique des Médicaments et Pharmacognosie, Université Catholique de Louvain, UCL 72.30-CHAM, Avenue E. Mounier 72, 1200 Bruxelles, Belgium. Chiara.Baccelli@cham.ucl.ac.be
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't