Linked Life Data

10926371

Source:http://linkedlifedata.com/resource/pubmed/id/10926371

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-11-9
pubmed:abstractText
The ability of hypochlorous acid (HOCl) (anion form - hypochlorite, OCl-) and HOCl/OCl- -modified human blood low density lipoproteins (HOCl-LDLs) to stimulate erythrocyte adhesion to endothelial cell monolayers was studied. LDLs were modified by incubating at different HOCl/OC- concentrations. This led to a damage of proteins and lipids. We found (1) a more than 20-fold decrease of LDL fluorescence intensity (extinction at 285 nm, emission at 340 nm), (2) accumulation of secondary (TBA-reactive substances) and final (Schiff bases) products of lipid peroxidation, and (3) increase in the electrophoretic mobility of LDLs. Preincubation of endothelial cells (ECs) with HOCI/OCl- (up to 50 microM) enhanced erythrocyte adhesion to the EC monolayer. Preincubation of ECs with HOCl-LDLs (up to 250 microM of HOCI//OCl- during LDL modification) (1) caused an increase in the cholesterol/phospholipid molar ratio in EC and (2) enhanced adhesion of erythrocytes to endothelium. Application of HOCl/OCl- at concentrations above 50 microM or treatment of LDLs with 500 microM HOCl resulted in the cytotoxic effect on ECs and led to a decrease in the molar cholesterol/phospholipid ratio in ECs and adhesion of erythrocytes to endothelium. The results suggest that HOCl/OCl- at physiological concentrations stimulates the adhesion of blood cells to the endothelium and cholesterol accumulation in the vessel wall ECs either directly or due to LDL modification. Both effects could be important in the development of many vascular diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1023-6597
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
537-46
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Hypochlorous acid and human blood low density lipoproteins modified by hypochlorous acid increase erythrocyte adhesion to endothelial cells.
pubmed:affiliation
Research Institute of Physico-Chemical Medicine, Moscow, Russia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't