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1.
Fitoterapia ; 78(7-8): 451-4, 2007 Dec.
Article in English | MEDLINE | ID: mdl-17600635

ABSTRACT

Hydro-ethanolic extract (70%) of Calotropis procera flowers was prepared and tested for its hepatoprotective effect against paracetamol-induced hepatitis in rats. Alteration in the levels of biochemical markers of hepatic damage like SGPT, SGOT, ALP, bilirubin, cholesterol, HDL and tissue GSH were tested in both treated and untreated groups. Paracetamol (2 g/kg) has enhanced the SGPT, SGOT, ALP, bilirubin and cholesterol levels and reduced the serum levels of HDL and tissue level of GSH. Treatment with hydro-ethanolic extract of C. procera flowers (200 mg/kg and 400 mg/kg) has brought back the altered levels of biochemical markers to the near normal levels in the dose dependent manner.


Subject(s)
Calotropis , Chemical and Drug Induced Liver Injury/prevention & control , Liver/drug effects , Phytotherapy , Plant Extracts/pharmacology , Protective Agents/pharmacology , Acetaminophen , Analgesics, Non-Narcotic , Animals , Chemical and Drug Induced Liver Injury/etiology , Dose-Response Relationship, Drug , Female , Flowers , Liver/enzymology , Male , Plant Extracts/administration & dosage , Plant Extracts/therapeutic use , Protective Agents/administration & dosage , Protective Agents/therapeutic use , Rats , Rats, Wistar
2.
Indian J Exp Biol ; 45(3): 304-10, 2007 Mar.
Article in English | MEDLINE | ID: mdl-17373378

ABSTRACT

Hepatoprotective activity of 70% ethanolic extract of flowers of C. procera was studied against CCl4 induced hepatic injury in albino rats and mice. In addition, antioxidant activity was studied by in vitro models. Pre-treatment with 70% ethanolic extract (CPA) reduced the biochemical markers of hepatic injury like serum glutamate pyruvate transaminase, serum glutamate oxaloacetate transaminase, alkaline phosphatase, bilirubin, cholesterol, HDL and tissue glutathione (GSH) levels. Similarly pretreatment with CPA reduced the CCl4 induced elevation in the pentobarbitone sleeping time. Histopathological observations also revealed that pretreatment with CPA protected the animals from CCl4 induced liver damage. CPA demonstrated dose dependant reduction in the in vitro and in vivo lipid peroxidation induced by CCl4. In addition it showed dose dependant free radical scavenging activity. The results indicate that flowers of C. procera possess hepatoprotective property possibly because of its anti-oxidant activity. This property may be attributed to the quercetin related flavonoids present in the flowers of Calotropis procera.


Subject(s)
Antioxidants/pharmacology , Carbon Tetrachloride Poisoning/prevention & control , Chemical and Drug Induced Liver Injury/prevention & control , Animals , Female , Male , Mice , Rats
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