Linked Life Data

10902865

Source:http://linkedlifedata.com/resource/pubmed/id/10902865

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-10-16
pubmed:abstractText
The increased risk of atherosclerosis in nephrotic syndrome is attributable in part to the associated hyperlipidaemia. The importance of oxidation of LDL in the atherogenic process has been recognized over the last 15 years. However, there are few data on the balance of antioxidant defences and lipoprotein oxidation in nephrotic syndrome. Plasma antioxidant vitamin concentrations and indices of LDL oxidation (LDL lipid hydroperoxide content and the susceptibility of LDL to oxidation) were measured in two groups of patients; group I comprised 29 nephrotic patients and group II comprised 25 patients with haematuria. Plasma ascorbate concentration was significantly lower in group I (the nephrotic group) compared with group II (median 13.3 versus 22.2 micromol/L; P<0.001). Vitamin E concentrations were higher in group I but were not significantly different if corrected for total plasma cholesterol (6.12 versus 5.88 micromol/mmol; P=0.33). However, these changes resulted in a low ascorbate:vitamin E ratio in group I (0.19 versus 0.87; P<0.0001). Despite these changes in important antioxidant vitamin concentrations, we were unable to demonstrate any increased susceptibility to LDL oxidation in vitro or any difference in LDL lipid hydroperoxide content. These data suggest that there may be a relative defect of oxidant/antioxidant balance in nephrotic syndrome which could predispose to increased oxidative stress. However, measures of LDL oxidation were not significantly different between the two groups. LDL was protected from oxidation despite the severe hyperlipidaemia and the low circulating vitamin C concentrations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0004-5632
pubmed:author
pubmed:issnType
Print
pubmed:volume
37 ( Pt 4)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
488-91
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Antioxidant vitamin concentrations and LDL oxidation in nephrotic syndrome.
pubmed:affiliation
Department of Nephrology, Leicester General Hospital, UK. gwarwick@compuserve.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't