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Assessment of hepatoprotective effect of Tecomella undulata (Sm.) Seem., Bignoniaceae, on paracetamol-induced hepatotoxicity in rats

DOI: 10.1590/S0102-695X2011005000020

Keywords: tecomella undulata, biognoniaceae, hepatoprotective activity.

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Abstract:

the aim of the present study was to validate the hepatoprotective activity of bark of tecomella undulata (sm.) seem., biognoniaceae, against paracetamol (pcm) induced hepatic damage. chloroform soluble fraction (fraction-i), acetone soluble fraction (fraction-ii), methanol soluble fraction (fraction-iii) and methanol insoluble fraction (fraction-iv) of ethanolic extract of bark of t. undulata were evaluated for hepatoprotective activity against paracetamol induced hepatic damage using biochemical, morphological, functional and histopathological studies. the methanol soluble fraction (fraction-iii) was most potent among the four fractions studied in detail. fraction-iii showed significant hepatoprotective activity against paracetamol induced hepatic damage as evident by normalization of substantially elevated levels of aspartate amino transferase (ast), alanine amino transferase (alt), alkaline phosphatase (alp) and total bilirubin (tbil), decreased level of total protein (tp), increased wet liver weight and volume, increased thiopentone sodium induced sleeping time and abnormal histopathology. present study showed that the fraction-iii of ethanolic extract of bark of t. undulata significantly restores physiological integrity of hepatocytes. fraction-iii did not show any sign of toxicity up to oral dose of 1500 mg/kg in mice.

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