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Articles by M. Gopal
Total Records ( 2 ) for M. Gopal
  Chandrashekhar G. Joshi , M. Gopal and N. Suchetha Kumari
  The practice of traditional medicines in treatment of cancer is based on the knowledge and use of plant based medicine since ancient time. The study of folk medicinal practices revealed the use of Tragia involucrata (Euphorbiaceae) along with other medicinal plants to treat certain tumours in some parts of Kerala, India. The aim of the present study was to evaluate the antitumor potential of hexane and ethyl acetate extracts (HE and EAE) and to asses the antioxidant activity of EAE of T. involucrata. The mice were injected with 106 Ehrlich’s Ascites Carcinoma (EAC) cells subcutaneously and the extracts were administered intra-peritoneal (i.p.). In vitro antioxidant property of EAE was tested by 2, 2’-azinobis (3-ethylbenzo-thiozoline-6-sulphonic acid (ABTS)) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) methods. In vivo antioxidant potential of EAE was determined by nitric-oxide by Griess-reagent method, total antioxidant in serum by phosphomolybdenum method and super oxide dismutase by nitroblue tetrazolium (NBT) method. Administration of the extracts to mice challenged with EAC showed significant antitumour activity. The observed antitumor activity of the extracts was dose dependant. There was a significant increase in the percentage life span (ILS %) in extract treated mice. HE was not toxic to mice even at the dose of 2000 mg kg-1 body weight. EAE was toxic to animals when the dosage was increased beyond 150 mg kg-1 . EAE was showing even a significant in vitro as well as in vivo antioxidant activity. In vivo antioxidant activity was showing the reciprocal dose response. From the results it may be concluded that the plant posses antitumor activity as claimed in traditional practices.
  G. Chandrashekhar Joshi and M. Gopal
  Many people in rural Bangladesh use a traditional contraceptive pill, “Shanti Bori” to control fertility in which Tragia involucrata is one of the components. The aim of the present study was to evaluate the validity of antifertility effect of this plant. The hexane (HE) and ethyl acetate extracts (EAE) of the aerial parts of T. involucrata have been evaluated for the anti-fertility activity in proven fertile female rats at dose of 200 mg kg-1 body weight. Preliminary phytochemical analysis showed the presence of phytosterols, triterpenes and flavonoids in the extracts. HE and EAE showed significant anti-fertility activity. It was found that the extracts reduced the number of litters born significantly at the dose of 200 mg kg-1 body weight. HE and EAE exhibited 81 and 50% antiimplantation potency respectively at the tested dose. The extracts also showed the estrogenic activity and potentiated the action of the standard drug ethanyl estradiol. All these observations suggest that extracts have antiimplantation as well as the abortifacient activity and are safe at the effective antifertility doses employed in this study.
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