RESUMEN
Ipomoea Pes-caprae (L.) R.Br (IP) is a valuable medicinal plant, distributed in the tropics and subtropics regions and used in folk and tribal medicines. Traditionally IP is used in inflammatory conditions such as arthritis and also used to treat pain, ulcer, cancer and wounds. The acute anti-inflammatory activity of IP has been previously reported. The present study aims to discover the anti-inflammatory effect of ethanolic extracts from aerials parts of IP by sub-acute anti-inflammatory model. Completely dried leaves and stems of I.pes-caprae were extracted using ethanol by hot percolation method. The EELIP & EESIP (Ethanolic extract of Leaves & Stems of IP) thus obtained were subjected to preliminary phytochemical analysis and revealed the presence of alkaloids, carbohydrates, glycosides, flavonoids, tannins, sterols and terpenoids both in leaf and stem extracts. The LD50 of both EELIP & EESIP were found to be >2000 mg/kg by acute oral toxicity study. Both EELIP & EESIP exhibited significant anti-inflammatory activities in dose dependent manner.
RESUMEN
Objective: Terminalia chebula Retz. (combretaceae) is called the “King of Medicine” in Tibet and is always listed at the top of the list of “Ayurvedic Materia Medica” because of its extraordinary power of healing. The present study was carried out to evaluate the possible in vitro antibacterial potential of different solvent extracts of T. chebula fruit against multidrug-resistant uropathogens. Methods: A total of 52 multidrug-resistant uropathogenic bacteria were used in this study. Successive extractions of T. chebula fruits were performed with solvents of different polarities. Agar well diffusion and microbroth dilution assay methods were used for antibacterial susceptibility testing. Kill-kinetics study was done to know the rate and extent of bacterial killing. Qualitative phytochemical screening was done to know the major phytoconstituents present in the plant material. Acute oral toxicity study in mice was performed to evaluate the toxic potential of the plant material, if any. Results:The ethanol extract of T. chebula fruits demonstrated a strong antimicrobial activity against all the test isolates and found to be most effective over others. Kill-kinetics study showed dose and time dependent antibacterial activity of ethanol extract. Phytochemical analysis revealed the presence of high concentration of phenolics and low concentration of flavonoids and terpenoids. In acute oral toxicity study, no gross behavioral changes were observed in mice at recommended dosage level and 24 h LD50 of ethanol extract was found to be >4 g/kg, p.o. in mice. Conclusions: The results provide justification for the use of Terminalia chebula fruit in folk medicine to treat various infectious diseases and could be useful for the development of alternative/ complementary medicine for multidrug-resistant uropathogens.