the methylotrophic thermo tolerant actinomycete strain 381, was isolated from a compost sample, assimilated methanol during growth. methanol dehydrogenase could not be detected in cell extracts using dye-linked assays in the absence of nad+. dichlorophenol-indophenol-linked methanol oxidation was detected in broken cell suspensions in the presence of nad+ and the absence of cyanide. taxonomic s...

Introduction: Nowadays, there is special interest in finding a new contraceptive drug with high safety and fewer side effects. Investigations have shown that dill (Anethum graveolens L.) can be used either as a menstrual cycle regulator or contraceptive. Since cell surface terminal sugars have crucial roles in oocyte maturation, fertilization and implantation, in this study we investigated the ...

general toxicity, antiproliferative, antibacterial and antioxidant activities of caulerpa peltata j.v.lamouroux (caulerpaceae) collected from oman sea were investigated. dried, ground alga was soxhlet-extracted with hexane, dichloromethane and methanol successively. the methanol extract was subjected to vacuum liquid chromatography (vlc) fractionation on silica gel using a step gradient of diff...

The present study describes the major content and antimicrobial activity of Azadirachta indica cell culture extracts. Major constituents of cell culture extracts were evaluated by HPLC and chromatographic analysis revealed that highest concentrations of azadirachtin (0.0069 % dry wt) synthesised by multiple shoot cultures. The results showed that multiple shoot cultures synthesised ~17-fold mor...

Seaweeds have caused an emerging interest in the biomedical area, mainly due to their contents of bioactive substances which show great potential as anti-inflammatory, anti-microbial, anti-viral and anti-tumoral drugs. Despite the diversity in quality and quantity of the Mediterranean Tunisian coast flora, with its large contains of marine organisms and seaweeds, most of them have not yet been ...

the anti-ischemic effect of aqueous and ethanolic extracts of nigella sativa l. seed was studied using a four-vessel occlusion model in rats. the ischemia was evaluated by optical and transmission electron microscopy. after 20 min of forebrain ischemia, agents were administered intraperitoneally after reperfusion. both extracts comprised an alkaloid. in ischemic rats, the aqueous (1 g/kg) and e...

The anti-ischemic effect of aqueous and ethanolic extracts of Nigella sativa L. seed was studied using a four-vessel occlusion model in rats. The ischemia was evaluated by optical and transmission electron microscopy. After 20 min of forebrain ischemia, agents were administered intraperitoneally after reperfusion. Both extracts comprised an alkaloid. In ischemic rats, the aqueous (1 g/kg) and e...

ABSTRACT Stachys is one of the largest genera in the flowering plant family. It is in the subfamily Lamioideae (Labiatae), spreading and growing in different parts of Iran. The purpose of this study was to investigate the chemical properties of Stachyslavandulifolia as well as the essence, ethanol and methanol extracts of this plant. It was collected from Chulus located in the West of Mazandara...

The anti-ischemic effect of aqueous and ethanolic extracts of Nigella sativa L. seed was studied using a four-vessel occlusion model in rats. The ischemia was evaluated by optical and transmission electron microscopy. After 20 min of forebrain ischemia, agents were administered intraperitoneally after reperfusion. Both extracts comprised an alkaloid. In ischemic rats, the aqueous (1 g/kg) and e...