The neuropharmacological effect of petroleum ether and ethyl acetate soluble fractions of ethanol extract of the rhizome of Drynaria quercifolia J. Smith were studied in mice by intraperitoneal administration. The tests used were determination of effect on duration of diazepam-induced sleep, determination of effect on nikethamide-induced toxicity, light-dark test and force swimming test. The du...

the circadian variation of the toxicity and nociceptive activity of aminophylline as an important methylxanthine was studied in mice. the animals were housed under controlled light-dark cycles for at least 2 weeks. acute toxicity was determined by ld50. hot-plate test was used for determination of thermal pain threshold. doses of 200, 250, 280 and 340 mg/kg of aminophylline were injected intrap...

objective: scientificstudies have shown that vitis vinifera (v. vinifera) contains flavonoids and stillbenoids. flavonoids are well known to possess anxiolytic activities. in view of the idea that flavonoids present in v. vinifera could be useful in anxiety, we evaluated anxiolytic-like activity of v. vinifera juice (vvj). materials and methods: light/dark box and the open field test were used ...

To provide a scientific basis for artificial culture, the effects of different breeding densities, feeding cycles, and light environments on the growth regulation of Poecilobdella manillensis were studied. After P. manillensis were cultured at breeding densities of 250 ~ 3250 leeches m-2; feeding cycles of 2 ~ 16 days; and a light environment with noise or a light-free environment without noise...

Trehalose is a non-reducing sugar that plays an important role in plant growth and development. To study the role of trehalose on lipid metabolism and gluconeogenesis, Arabidopsis thaliana wild type (WT) and TreF (a line expressing trehalase) were grown on ½ MS medium with or without 100 mM sucrose and or trehalose in light or continuous darkness. In dark, trehalose leads skotomorphoge...

Tuna processing by-product is estimated at more than 100,000 metric tonnes annually in Iran, which could be a potential source of edible protein in human food. Hence, recovering proteins from tuna by-products is a big achievement in the seafood industry. In this work tuna protein isolates (TPI) were extracted from dark/ red meat using the isoelectric solubilization/ precipitation method. Oxidat...