Evaluation of tectona gransis leaves for wound healing activity

The frontal leaves of Tectona grandis [Verabinaceae] are widely used in the folklore for the treatment of various kinds of wounds, especially burn wound. The present study was carried out to evaluate the effect of hydrochloric extract of Tectona grandis on experimentally induced wounds in rats and compare the effects observed with a known wound healing agent, Aloe vera. The models selected were excision wound, incision wound, burn wound and dead space wound. A suitable gel formulation was selected for the application using cellophane membrane penetration. In the excision wound and burn wound models, animals treated with Tectona grandis leaf extract showed significant reduction in period of epithelisation and wound contraction 50%. In the incision wound model, a significant increase in the breaking strength was observed. Tectona grandis leaf extract treatment orally produced a significant increase in the breaking strength, dry weight and hydroxyproline content of the granulation tissue in dead space wound. It was concluded that Tectona grandis leaf extract applied topically [5% and 10% gel formulation] or administered orally [250 mg and 500 mg/kg body weight] possesses wound healing activity

Effect of hexane extract of boswellia serrata oleo-gum resin on chemically induced liver damage

The hexane extract of oleo-gum-resin of Boswellia serrata [BSHE] was evaluated for its effect on liver injury induced by carbon tetrachloride, paracetamol or thioacetamide. The BSHE was given in two different doses [87.5 mg/kg p.o. and 175mg/kg p.o.]. Silymarin, a known hepatoprotective agent was used as standard. The lower dose of BSHE [87.5mg/kg p.o.] significantly reduced the elevated levels of serum marker enzymes and prevented the increase in liver weight in all three models of liver injury, while the higher dose showed mild hepatoprotective activity. The hepatoprotective effect of lower dose of BSHE was supported by changes in histopathology. It was concluded that hexane extract of oleo-gum-resin of Boswellia serrata plant in lower doses possess hepatoprotective activity