Methods are reported for the manual spectrophotometric or fluorometric estimation of tocopherol in human cerebrospinal fluid. The fluid is centrifuged, an equal volume of ethanol is added, and the tocopherol is extracted with hexane, which is then used for the direct estimation by fluorometry. The fluorescence of tocopherol is significantly affected by the proportion of ethanol in the hexane so...

Dewa mushroom is a saprophytic that can function as medicine, namely antihypertensive, antibacterial, anticancer, immunostimulant, anticholesterol, antiviral, and antioxidant. The content of secondary metabolites terpenoids, alkaloids, phenols have antibacterial activity. extract was obtained by stepwise extraction with hexane, dichloromethane, ethylacetate solvents. Testing activity diffusion ...

BACKGROUND Saraphi (Mammea siamensis) is a Thai traditional herb. In this study, the cytotoxic effects of crude ethanolic and fractional extracts including hexane, ethyl acetate, and methanol fractions from M. siamensis flowers were investigated in order to determine their effect on WT1 expression in Molt4 and K562 cells and Bcr/Abl expression in K562 cells. MATERIALS AND METHODS The flowers ...

BACKGROUND Traditionally GS is used to treat diabetes mellitus. Drug-herb interaction of GS via cytochrome P450 enzyme system by substrate cocktail method using HLM has not been reported. OBJECTIVE To evaluate the in-vitro modulatory effects of GS extracts (aqueous, methanol, ethyl acetate, chloroform and n-hexane) and deacylgymnemic acid (DGA) on human CYP1A2, 2C8, 2C9, 2D6 and 3A4 activitie...

OBJECTIVES Aristotelia chilensis leaves (Elaeocarpaceae) are used in Chilean folk medicine to treat pain and inflammation. A bioguided study was carried out on serial extracts (hexane, dichloromethane, methanol, aqueous extract (INFU) and a crude mixture of alkaloids (ALK-MIX). All extracts were evaluated for (1) topical administration against both arachidonic acid and 12-deoxyphorbol-13-decano...

Dates fruit has been used as staple food in the Middle East for thousands of years and various types of dates are found worldwide. Dates and their constituents show various roles in diseases prevention and treatment through anti-oxidant, anti-inflammatory, anti-bacterial activity. In the present study we investigated the activity of aqueous and n-hexane extracts of Phoenix dactylifera L. fruit ...

Chemical characteristics, fatty acid composition, antioxidant and antimicrobial activities ofPrunus armeniaca kernel oil were evaluated in this study. The hexane extracts of kernel of P.armeniaca, which were collected from northwestern Iran, were obtained by Soxhlet apparatus.The fatty acids were derived to methyl esters and determined by gas chromatography/flameionization detector (GC/FID) and...

Twelve xanthones were isolated from the hexane extract of the heartwood of Garcinia mangostana from Myanmar. Their structures were determined using 1D and 2D NMR techniques

Natural compounds with antioxidant activity can be useful for treatment of reactive oxygen species-related diseases, comprising atherosclerosis, inflammatory injury, cardiovascular disease, cancer, diabetes, Alzheimer's disease, cataracts, autism, and aging. The current study was perform to assay the antioxidant activity different fractions of methanolic extract of golden chanterelle mushroom C...

Among the numerous botanical species found in the Brazilian plant biome, Ximenia americana is widespread in the Northeast of Brazil, especially in the state of Ceará, where it is known as bush plum. Its bark, leaves and roots are used in popular medicine for the treatment of skin infections, hemorrhoids, stomach ulcers, gastric pain, among others. In this work, hexane and ethanolic extracts of ...