Linked Life Data

9503035

Source:http://linkedlifedata.com/resource/pubmed/id/9503035

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-4-16
pubmed:abstractText
It is well known that different oxovanadium species can have significantly different biopotencies, including hypoglycemic actions. The basis for the observed differences in the biopotency of different oxovanadium species: vanadate, vanadyl, 1,10-phenanthroline bisperoxovanadate (phen-bpv), 4-methyl 1,10-phenanthroline bisperoxovanadate (mpv) and 4,7-dimethyl 1,10-phenanthroline bisperoxovanadate (dpv), was examined in this study. The cellular uptake kinetics for these oxovanadium species was measured. Phen-bpv and vandyl had the most rapid cellular uptake. Mpv, dpv and vanadate exhibited a much slower uptake kinetics. Stimulation of protein tyrosine phosphorylation (PTP), both the time dependency and the dose dependency, was used as an index for biopotency. Although phen-bpv and vanadyl had the same cellular uptake kinetics, they differed markedly in their ability to stimulate PTP. Structurally similar oxovanadium species, phen-bpv, mpv and dpv demonstrated different uptake kinetics and effects on stimulating PTP. Bioavailability, both in term of cellular uptake and migration or transport to the active site, has been shown to be an important factor, in addition to intrinsic activity of the oxovanadium species, in determining the overall biopotency. Finally, this study demonstrates that variation of the chelating ligand has a profound effect on the physiochemical properties and biological effects of the oxovanadium species.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0018-5043
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
29-33
pubmed:dateRevised
2009-2-19
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
The cellular intake kinetics and acute biological effects of various oxovanadium species: a comparative study.
pubmed:affiliation
Indiana State University, Department of Chemistry, Terre Haute, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't