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Identification of the active components of plants with hepatoprotective properties requires screening of large numbers of samples during fractionation and purification. A screening assay has been developed based on protection of human liver-derived HepG2 cells against toxic damage. Various hepatotoxins were incubated with HepG2 cells in 96-well microtitre(More)
AIM OF THE STUDY The aim of the present study was to scientifically investigate whether Trichosanthes cucumerina Linn (Family: Cucurbitaceae) has gastroprotective activity. MATERIALS AND METHODS All the experiments were conducted using Wistar strain rats (weight: 200-220 g). The food and water given to rats was withdrawn for 36 and 12h respectively,(More)
Patients with acute liver failure accumulate toxic substances in the circulation which may impair recovery of hepatic function. The aim of this study was to test an in vitro assay to detect inhibitory substances in the serum of patients with acute liver failure. Human liver-derived HepG2 cells were incubated for 24h in 96 well plates (30,000 cells/well)(More)
Intraperitoneal administration of chloroquine, primaquine and quinacrine to rats resulted in inhibition of the hepatic microsomal mixed-function oxidases. The N-demethylation of benzphetamine (cytochrome P-450) was inhibited by chloroquine only while the O-deethylation of ethoxyresorufin (cytochrome P-448) was inhibited by primaquine and quinacrine. When(More)
Treatment with an aqueous extract of the aerial parts of Melothria maderaspatana, before or after CCl4 administration in rats markedly decreased CCl4-mediated reductions in aniline hydroxylase and p-aminopyrine N-demethylase activities. Phenobarbital-induced sleeping time in rats and kinetic enzyme studies showed that the effect of the plant was neither due(More)
Liv.52, a hepatoprotective agent of herbal origin, is used empirically for the treatment of alcoholic liver disease in Sri Lanka. We conducted a controlled trial to assess the efficacy of Liv.52 in patients with alcoholic liver disease. Patients with evidence of alcoholic liver disease attending outpatient clinics were included in a prospective, double(More)
The effects of concurrent administration of herbal tea prepared from dried flowers of Cassia auriculata or aerial parts of Cardospermum halicacabum and steady state serum levels of theophylline was investigated in Wistar rats. Results obtained demonstrate that a significant increase in the steady state levels of theophylline occur when this drug is(More)
Investigations were carried out to evaluate the effects of hot-water extracts of Artocarpus heterophyllus leaves and Asteracanthus longifolia whole plant material on the glucose tolerance of normal human subjects and maturity-onset diabetic patients. The extracts of both Artocarpus heterophyllus and Asteracanthus longifolia significantly improved glucose(More)
Reactive oxygen intermediates (ROI) are together with prostanoids, leukotrienes and proteases, believed to be the mediators of inflammation and responsible for the pathogenesis of tissue destruction in RA. Antioxidant (AO) activity is one of the mechanisms by which many conventional drugs used in day to day treatment of RA alleviate the painful symptoms(More)