Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-1-8
pubmed:abstractText
Walnut (Juglans regia L.) bark has been claimed to possess anti-inflammatory, blood purifying, anticancer, depurative, diuretic and laxative activities. It contains several therapeutically active constituents, especially polyphenols. We studied the antioxidant potential of aqueous extract of walnut bark and its modulatory effect on cyclophosphamide (CP)-induced urotoxicity in Swiss albino male mice. Free radical-scavenging activity of extract was assessed in four in vitro assays. The phenolic and flavonolic contents of the extract were also measured. Walnut bark extract treatment (150 mg/kg p.o. x 10 days) resulted in protective restoration of decreased antioxidants in CP-treated (18 mg/kg i.p. x 10 days) animals. CP treatment caused decreases in the activities of catalase (CAT), glutathione peroxidase (GP), glutathione reductase (GR) and glutathione S-transferase (GST) and in the glutathione (GSH) content in urinary bladder and a significant concomitant increase in lipid peroxidation (LPO). Administration of extract restored all the antioxidants significantly and lowered the elevated LPO in the bladder. A correlation between radical scavenging capacities of the extract with phenolic content was observed thus justifying its antioxidant potential against oxidative stress-mediated urotoxicity in mice. Walnut is reported to possess antiproliferative activity. Its protective effect on CP-induced toxicity in bladder is a promising activity, which warrants possible clinical investigations on this medicinal plant.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1743-2928
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
273-9
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
In vitro antioxidant activity of Juglans regia L. bark extract and its protective effect on cyclophosphamide-induced urotoxicity in mice.
pubmed:affiliation
Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't