Abstract Background Mosquitoes are vectors for several diseases like dengue, chikingunea, malaria etc. The three important mosquito species in India Aedes aegypti , Culex quinquefasciatus and Anopheles stephensi . Several plant extracts phytoconstituents have been tested antimosquito activity. In our present investigation, we studied, the larvicidal, pupicidal ovicidal activities of successive ...

This study evaluates the bioactivity of the crude ethanol extract and ethyl acetate, hexane and chloroform fractions obtained from Eugenia uniflora leaves using the hepatopancreas of Oreochromis niloticus L. as an experimental model. The ethanol extract and fractions were administered to the fish orally with their feed. Twenty-four hours later, the fish were sacrificed and their livers dissecte...

This study evaluated the antimicrobial activity of the crude ethanol extract and fractions from Eugenia uniflora L. leaves against Pseudomonas aeruginosa. A total of 72 P. aeruginosa isolated from patients of three hospitals in Goiânia and 8 standard strains were selected to test antimicrobial activity. The bacteria susceptibility profile against 15 antimicrobial agents was determined using the...

Chagas' disease is caused by a parasitic protozoan and affects the poorest population in the world, causing high mortality and morbidity. As a result of the toxicity and long duration of current treatments, the discovery of novel and more efficacious drugs is crucial. In this work, the hexane extract from seeds of Porcelia macrocarpa R.E. Fries (Annonaceae) displayed in vitro antitrypanosomal a...

The antimicrobial activity and preliminary phyto-chemical studies on whole plant of Stachytarpheta jamaicensis were evaluated. The shade dried and coarsely powdered plant was successively extracted with n-hexane, chloroform and alcohol in Soxhlet apparatus. The antimicrobial activity of chloroform and alcohol extracts were evaluated by disc diffusion method and the MIC was determined. Prelimina...

BACKGROUND The efficacy of Centella asiatica for incision and burn wounds are not fully understood. Here, we report the wound healing activities of sequential hexane, ethyl acetate, methanol, and water extracts of Centella asiatica in incision and partial-thickness burn wound models in rats. METHODS Male Sprague-Dawley rats weighing 250-300 g were randomly divided into incision and burn wound...

We assessed the anti-Listerial activities of crude n-hexane and aqueous extracts of Garcinia kola seeds against a panel of 42 Listeria isolates previously isolated from wastewater effluents in the Eastern Cape Province of South Africa and belonging to Listeria monocytogenes, Listeria grayi and Listeria ivanovii species. The n-hexane fraction was active against 45% of the test bacteria with zone...

Herbal medicines possess a great demand in both developed and developing countries as a source of primary health care owing to their attributes having wide biological and medicinal activities, high safety margins and lesser costs. People living in rural areas of Nepal depend largely in the herbal medicines for the treatment. The present study concerns with the study of pharmacognostic character...

Natural products from medicinal plants, either as pure phytoconstituents or as standardized extracts, provide unlimited opportunities for new drug leads because of the unmatched availability of chemical diversity. In the present investigation include the extraction, isolation and characterization of active compounds from Syzygium alternifolium (Wight) Walp. Isolated phytoconstituents were forwa...

The anti-implantation potential of different fractions of Vitex negundo Linn leaf extract was evaluated in female Swiss Albino mice. Animals from different groups were dosed orally either with 0.2% agar (vehicle) or with fractions of V. negundo leaf extract (n-hexane, chloroform, n-butanol, and remnant fractions) at 10:00 a.m., from day 1 to day 6 of pregnancy. The pregnant females from each gr...