Biologically, screening of medicinal plants extracts have been since pre-historic to determine the antioxidants and antimicrobial profile. The present study was aimed to investigate and evaluate crude extract and different fractions of Bergenia ciliata Sternb (rhizome) for bioactivity which is most considerable medicinal plants. The chloroform fraction was found to be highly anti-oxidative with...

Plants provide a rich source of lead compounds for a variety of diseases. A novel approach combining phytochemistry and chemotaxis assays was developed and used to identify and study the mechanisms of action of the active compounds in F. japonica, a medicinal herb traditionally used to treat inflammation. Based on a bioactivity-guided purification strategy, two anthranoids, emodin and physcion,...

We investigated the antiplasmodial properties of crude extracts from Carica papaya leaves to trace the activity through bioassay-guided fractionation. The greatest antiplasmodial activity was observed in the ethyl acetate crude extract. C. papaya showed a high selectivity for P. falciparum against CHO cells with a selectivity index of 249.25 and 185.37 in the chloroquine-sensitive D10 and chlor...

Cone snails are remarkable for the extent and diversity of gene-encoded peptide neurotoxins that are expressed in their venom apparatus. The protein content of the crude toxin extract of Conus figulinus Linneaus was found to be 1900 μg/mL. The crude extract (dilution up to 10) expressed hemolytic activity. The crude extract subjected to gel filtration chromatography yielded 60 fractions; the fr...

The aim of the present study was to explore the aerial parts of the Polygonatum verticillatum for various biological activities such as phytotoxic, insecticidal and leishmanicidal properties. Outstanding phytotoxicity was observed for the crude extract and its subsequent solvent fractions against Lemna acquinoctialis Welv at tested doses of 5, 50 and 500 μg/ml. Complete growth inhibition (100%)...

This study was performed to investigate whethere there is cross-reactivity between Dirofilaria immitis and three intestinal nematodes of dogs. In ELISA, D. immitis-infected dog sera obtained at the 4th molting stage (9-11 weeks) and microfilaremic stage (25-30 weeks) were shown to be highly reactive with crude extract of T. canis. In immunoblotting, some antigenic fractions, 44, 57, 88, 100 kDa...

The preliminary phytochemical screening of the root of Clerodendrum baronianum and antimicrobial activities of the crude extract in various solvent systems were determined. A pure colorless needle shape crystal compound (CB) was separated by thin layer and column chromatographic methods. The yield is found to be (10.3 mg %) based upon the ethyl acetate crude extract. The melting point of this c...

Aphanamixis polystachya is a traditional medicinal plant of the Meliaceae family in India. A crude ethanolic extract of the leaf of this plant shows a beneficial effect on toxic liver injury. Its antihepatotoxic activity was evaluated on carbon tetrachloride (CCl4)-induced liver injury in a rat model. The assessment of hepatoprotective activity was evaluated by measuring the activities of aspar...

The leaves of Eucalyptus robusta Smith (Myrtaceae) are used in China to prepare the anti-malari­ al traditional medicine “Da Ye An” [1], Previous work on the extract of the leaves has yielded the bisphloroglucinol robustaol [21 as well as the robustadials A and B [3], The known phenols euglobal la, and Ia2, originally reported from E. globulus [4], were also isolated [3]. In a broad screening f...