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Antioxidant activity of Nelumbo nucifera (Gaertn) flowers in isolated perfused rat kidney / Atividade antioxidante das flores de Nelumbo nucifera (Gaertn) em rim isolado perfundido de rato
Krishnamoorthy, Gayathri; Chellappan, David Raj; Joseph, Jipnomon; Ravindhran, Dhevi; Shabi, Mohamed M; Uthrapathy, Subashini; Rajamanickam, Victor G; Dubey, Govinda P.
  • Krishnamoorthy, Gayathri; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Chellappan, David Raj; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Joseph, Jipnomon; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Ravindhran, Dhevi; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Shabi, Mohamed M; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Uthrapathy, Subashini; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Rajamanickam, Victor G; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
  • Dubey, Govinda P; Sastra University. Centre for Advanced Research in Indian System of Medicine (CARISM). Tamilnadu. IN
Rev. bras. farmacogn ; 19(1b): 224-229, Jan.-Mar. 2009. tab
Article in English | LILACS | ID: lil-523087
RESUMO
A padronização da indução de estresse oxidativo com a mstura de Fenton em rim isolado perfundido de rato e a avaliação do efeito antioxidante das flores de Nelumbo nucifera em rim isolado de rato oxidativamente estressado são realizadas no presente estudo. Seis grupos de rim isolado perfundido de rato foram utilizados para o presente estudo. O grupo I de rins recebeu veículo. O grupo II de rins foi oxidativamente estressados com a mistura de Fenton. Os grupos III e IV de animais foram tratados com duas doses graduais de extrato após a administração da mistura de Fenton. Os grupos V e VI de rins foram perfundidos com duas doses graduais de extrato sem a mistura de Fenton. A mistura de Fenton causou estresse oxidativo com diferença significativa de malondialdeído (TBARS), glutationa reduzida (GSH), glutationa peroxidase (GPx), catalase, glutamato oxaloacetato transaminase (GOT) e glutamato piruvato transaminase (GPT) (p<0,05) em ratos doentes. No tratamento dos animais com extrato, o estresse oxidativo foi diminuído com aumento nos antioxidantes e as enzimas marcadoras mantiveram o nível normal. Este efeito do extrato foi dependente da dose. Em conclusão, a mistura de Fenton desenvolveu o estresse oxidativo em rim isolado perfundido de rato e o extrato das flores de Nelumbo nucifera apresenta atividade antioxidante no rim isolado perfundido oxidativamente estressado.
ABSTRACT
Standardization of induction of oxidative stress with Fenton mixture in isolated perfused rat kidney and evaluation of antioxidant effect of Nelumbo nucifera flowers in isolated oxidatively stressed rat kidney are carried out in present study. Six groups of isolated perfused rat kidney were used for the present study. Group I kidneys were received vehicle. Group II kidneys were oxidatively stressed with Fenton mixture. Group III and IV animals were treated with two graded doses of extract after the administration of Fenton mixture. Group V and VI kidneys were perfused with two graded doses of extract without Fenton mixture. Fenton mixture was found to cause oxidative stress with significant difference of malondialdehyde (TBARS), Reduced glutathione (GSH), Glutathione peroxidase (GPx), catalase, Glutamate Oxaloacetate Transaminase (GOT) and Glutamate Pyruvate Transaminase (GPT) (p<0.05) in diseased rats. On treating animals with extract, the oxidative stress was decreased with increase in antioxidants and the marker enzymes were found to maintain the normal level. This effect of extract was found to be dose dependent. In conclusion, Fenton mixture developed the oxidative stress in isolated perfused rat kidney and Nelumbo nucifera flowers extract exhibits antioxidant activity in that oxidatively stressed isolated perfused kidney.

Full text: Available Index: LILACS (Americas) Language: English Journal: Rev. bras. farmacogn Journal subject: Pharmacy Year: 2009 Type: Article Affiliation country: India Institution/Affiliation country: Sastra University/IN

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Full text: Available Index: LILACS (Americas) Language: English Journal: Rev. bras. farmacogn Journal subject: Pharmacy Year: 2009 Type: Article Affiliation country: India Institution/Affiliation country: Sastra University/IN