Objective: The present study was intended to evaluate the hepatoprotective activity of ethanolic extract of leaves of Vitex negundo Linn.. The Vitex negundo Linn. is a medicinal plant found throughout India. Method: The ethanolic extract of Vitex. Negundo Linn. (300 mg/kg) was administered orally by suspending in tween-20 solution to the animals with hepatotoxicity induced by paracetamol (3gm/kg). Silymarin (25mg/kg) was given as reference standard. The hepatoprotective activity was also supported by histopathological studies of liver tissue. An effective significant alteration in all biochemical parameters and histopathological sections was observed Result: Since results of biochemical studies of blood samples of paracetamol treated rats showed significant increase in the levels of serum enzyme activities, reflecting the liver injury caused by paracetamol and blood samples from the animals treated with the oral administration of ethanol extract produced a significant reduction in serum enzymes alanine aminotransferase (ALT), aspartate aminotransferase, (AST), alkaline phosphatase (ALP) to the acute hepatotoxic induced rats. They exhibited a significant inhibition of hepatic toxicity by using various marker enzymes and the histopathological analysis. Conclusion: From these results, concluded that the Vitex negundo Linn. was effective in protecting the liver against the injury induced by paracetamol in rats at the dose of 300 mg/kg/body weight. These results suggest that leaves of Vitex negundo Linn. may supports the hepatic cells protection.
Cajanus cajan (L) Millsp. is the perennial plant belongs to family Fabaceae, commonly called as Pigeon pea plant. The presence of phytoconstituents like flavonoids, the flavanone (substituted) from Cajanus cajan (L) Millsp. have in vitro neuroactive property. This flavanone named as pinostrobin helps to inhibit voltage – gated sodium channels. Because of its bioactive phytoconstituents it may act as antiepileptic drug. To avoid problems like ADR herbal plant might be alternative to treat epilepsy. The current study was therefore carried out to evaluate antiepileptic activity of Ethanolic extract of leaves of Cajanus cajan in rodents. The effect of ELECC in MES-induced convulsions in rat and PTZ-induced convulsion in mice was evaluated using doses 100 mg/kg and 200 mg/kg for 7 days. Phenytoin (25 mg/kg), Diazepam (4 mg/kg) was used as standard drug for respective model. Depending on the model, outcome measures were abolishment of Hind Limb Tonic Extensor phase in MES-induced convulsion in rat and onset of latency, recovery or death in PTZ-induced convulsion in mice as well as biochemical estimation of amino acid neurotransmitter (GABA, Glutamate) were evaluated. The ELECC at doses 100 and 200 mg/kg significantly delayed the HLTE phase in MES-induced convulsions in rat whereas, significantly increased onset of latency in PTZ-induced convulsion in mice. It also showed significant (p>0.0001) effect on the level of GABA and Glutamate in dose dependent manner in both models. The phytochemical study of C. cajan showed the presence of Glycosides, Flavonoids, Flavonones, Steroids, Tannins, Fixed oil, Fatty acids and Proteins. As the flavonoids present in C. cajan may contribute to the anticonvulsant activity of the plant. Therefore, the presence of such compounds in the extract may be responsible for the anticonvulsant effect. Therefore, present study validates its anticonvulsant activity. Further, research is required to elucidate its specific mechanism of action and isolation of responsible active principles.
Adansonia digitata (AD) Linn has been used to cure PU in Ayurveda but its efficacy has not been validated. The current study was so carried out to evaluate the antiulcer activity of ethanolic extract of Adansonia digitata fruit pulp (ADFP), n hexane extract of Adansonia digitata seed oil (ADSO) and their combination (ADFP+ADSO) in rats. The effect of AD on gastric ulcer in pylorus ligation induced and ethanol induced models was studied using doses [ADFO (500 mg/kg), ADSO (300 mg/kg) and combination of ADFP and ADSO] for 10 days. Omeprazole (10 mg/kg) were used as the standard drug. Depending on the model, outcomes measures were gastric volume, pH, free acidity, total acidity, ulcer index, percentage inhibition of ulcer index, protein, pepsin, mucus, antioxidant marker enzyme level (Superoxide dismutase, Catalase, Lipid peroxidation), morphological and Histopathological study. The result obtained with combination was set up near to the standard drug and consequence showed that the combination of ADFP and ADSO was found to be more effective than the individual extract of AD. The outcomes were statistically evaluated with the one-way ANOVA followed by the test of Dennett’s‘t’. The secondary-metabolites such as flavonoids, proteins, saponins, tannins, phenols, terpenoids, alkaloids and Fatty acids (palmitic acid, oleic acid, linoleic acid) are potent as antioxidant, antiulcer and anti-inflammatory. The finding of this reading confirmed that AD has antiulcer activity due to 1 or more of the secondary-metabolites present in it. Therefore, this study validates its antiulcer use in Ayurveda. Future investigation on separation of specific phytochemicals and elucidate MOA are needed.
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