Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2002-11-4
pubmed:abstractText
An aqueous solution of green tea polyphenols (GTP) was found to inhibit lipid peroxidation (LP), scavenge hydroxyl and superoxide radicals in vitro. Concentration needed for 50% inhibition of superoxide, hydroxyl and LP radicals were 10, 52.5 and 136 micro g/ml, respectively. Administration of GTP (500 mg/kg b.wt.) to normal rats increased glucose tolerance significantly (P<0.005) at 60 min. GTP was also found to reduce serum glucose level in alloxan diabetic rats significantly at a dose level of 100 mg/kg b.wt. Continued daily administration (15 days) of the extract 50, 100 mg/kg b.wt. produced 29 and 44% reduction in the elevated serum glucose level produced by alloxan administration. Elevated hepatic and renal enzymes produced by alloxan were found to be reduced (P<0.001) by GTP. The serum LP levels which was increased by alloxan and was reduced by significantly (P<0.001) by the administration of 100 mg/kg b.wt. of GTP. Decreased liver glycogen, after alloxan administration showed a significant (P<0.001) increase after GTP treatment. GTP treated group showed increased antioxidant potential as seen from improvements in superoxide dismutase and glutathione levels. However catalase, LP and glutathione peroxidase levels were unchanged. These results indicate that alterations in the glucose utilizing system and oxidation status in rats increased by alloxan were partially reversed by the administration of the glutamate pyruvate transaminase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0378-8741
pubmed:author
pubmed:issnType
Print
pubmed:volume
83
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
109-16
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:12413715-Alloxan, pubmed-meshheading:12413715-Animals, pubmed-meshheading:12413715-Antioxidants, pubmed-meshheading:12413715-Blood Glucose, pubmed-meshheading:12413715-Diabetes Mellitus, Experimental, pubmed-meshheading:12413715-Flavonoids, pubmed-meshheading:12413715-Free Radical Scavengers, pubmed-meshheading:12413715-Hypoglycemic Agents, pubmed-meshheading:12413715-Kidney, pubmed-meshheading:12413715-Kidney Function Tests, pubmed-meshheading:12413715-Lipid Peroxidation, pubmed-meshheading:12413715-Liver, pubmed-meshheading:12413715-Liver Function Tests, pubmed-meshheading:12413715-Male, pubmed-meshheading:12413715-Oxidative Stress, pubmed-meshheading:12413715-Phenols, pubmed-meshheading:12413715-Phytotherapy, pubmed-meshheading:12413715-Plant Extracts, pubmed-meshheading:12413715-Plant Leaves, pubmed-meshheading:12413715-Polymers, pubmed-meshheading:12413715-Polyphenols, pubmed-meshheading:12413715-Rats, pubmed-meshheading:12413715-Rats, Wistar, pubmed-meshheading:12413715-Tea
pubmed:year
2002
pubmed:articleTitle
Anti-diabetic activity of green tea polyphenols and their role in reducing oxidative stress in experimental diabetes.
pubmed:affiliation
Amala Cancer Research Centre, Amala Nagar,Trichur 680 553, Kerala, India.
pubmed:publicationType
Journal Article