Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-6-19
pubmed:abstractText
Naturally occurring pentacyclic triterpenes of plant origin have been identified as possessing a wide range of pharmacological effects. Lupeol (Lupa-21,20(29) dien, 3beta-ol) has been found to be efficient in reducing the risk of stone formation in animals by way of preventing crystal-induced tissue damage and dilution of urinary stone-forming constituents. In the present study, two structurally related triterpenes, lupeol and betulin (Lupa-20(29)ene-3,28 diol) were assessed for their antilithiatic effect. Foreign body implantation method followed by supplementation of ammonium oxalate was adapted to induce stone formation in the bladder. This led to elevated lipid peroxidation and depleted antioxidant status in the renal tissues. Both the triterpenes were equally efficient in minimizing crystal-induced renal peroxidative changes measured in terms of malondialdehyde and subsequent tissue damage. The antioxidant status, comprising of the enzymatic and non-enzymatic components, was found to be significantly depleted in the kidney and bladder of stone-forming animals. Both lupeol and betulin were comparable in their ability to restore the thiol status and the antioxidant enzymes like superoxide dismutase, catalase and glutathione peroxidase. The mechanism by which the two compounds render protection against oxalate-induced toxic manifestations and free radical production may involve the inhibition of calcium oxalate crystal aggregation and enhancement of the body defence systems. 2000 Academic Press.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Anti-Inflammatory Agents, http://linkedlifedata.com/resource/pubmed/chemical/Antineoplastic Agents, http://linkedlifedata.com/resource/pubmed/chemical/Catalase, http://linkedlifedata.com/resource/pubmed/chemical/Free Radicals, http://linkedlifedata.com/resource/pubmed/chemical/Glutathione, http://linkedlifedata.com/resource/pubmed/chemical/Glutathione Transferase, http://linkedlifedata.com/resource/pubmed/chemical/Malondialdehyde, http://linkedlifedata.com/resource/pubmed/chemical/Oxalates, http://linkedlifedata.com/resource/pubmed/chemical/Pentacyclic Triterpenes, http://linkedlifedata.com/resource/pubmed/chemical/Thiobarbituric Acid Reactive..., http://linkedlifedata.com/resource/pubmed/chemical/Triterpenes, http://linkedlifedata.com/resource/pubmed/chemical/betulin, http://linkedlifedata.com/resource/pubmed/chemical/lupeol
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1043-6618
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
413-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:10704264-Animals, pubmed-meshheading:10704264-Anti-Inflammatory Agents, pubmed-meshheading:10704264-Antineoplastic Agents, pubmed-meshheading:10704264-Catalase, pubmed-meshheading:10704264-Crystallization, pubmed-meshheading:10704264-Free Radicals, pubmed-meshheading:10704264-Glutathione, pubmed-meshheading:10704264-Glutathione Transferase, pubmed-meshheading:10704264-Lipid Peroxidation, pubmed-meshheading:10704264-Malondialdehyde, pubmed-meshheading:10704264-Oxalates, pubmed-meshheading:10704264-Pentacyclic Triterpenes, pubmed-meshheading:10704264-Plants, Medicinal, pubmed-meshheading:10704264-Rats, pubmed-meshheading:10704264-Thiobarbituric Acid Reactive Substances, pubmed-meshheading:10704264-Triterpenes, pubmed-meshheading:10704264-Urinary Bladder, pubmed-meshheading:10704264-Urinary Calculi
pubmed:year
2000
pubmed:articleTitle
Protective effect of triterpenes on calcium oxalate crystal-induced peroxidative changes in experimental urolithiasis.
pubmed:affiliation
Department of Biochemistry, Dr. Alm Post-graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai-600 113, India.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't