Terry Alexander (colonyend50)

The plant extract showed the high cytotoxicity activity against Brine shrimp. Moreover, the plant extract exhibited allelopathic effect on different growth parameters of wheat plant mostly at higher concentration. selleck products These results indicate that the BPEE have a potential broad-spectrum antimicrobial, cytotoxic, antioxidant and phytotoxic activity due to the presence of bioactive compounds.Present study was designed to monitor the dose dependent effects of lorazepam; a benzodiazepine (CNS depressant). It is the primary drug of choice for treatment of anxiety and to produce calming effects. However, repeated administration of this lorazepam causes dependence and this might be caused by increased dopaminergic neurotransmission. Besides dopamine, 5-hydroxy tryptamine (5-HT) has also been reported to have pivotal role in the pathophysiology as well as treatment of anxiety and addiction. Repeated administration of lorazepam might involve altered 5-HT metabolism as well. Present study was therefore designed to monitor dose-dependent effects of lorazepam and to select its optimum dose for further experiments and pharmacological interventions. Effects of lorazepam were monitored on food intake, growth rate, activities in familiar and novel environments, light dark box activity, forced swim test and metabolism of dopamine and 5-HT. oral administration of lorazepam was done at the doses of 0mg/kg, 2mg/kg, 4mg/kg and 6mg/kg. Behaviors parameters were monitored following single administration of lorazepam. Rats were decapitated and whole brain samples were collected and stored at -70°C until neurochemical analysis by HPLC-EC. Findings from the present study could be implicated to increased therapeutic utility of lorazepam and related benzodiazepines.The aim of this study was to examine the effects of glycosaminoglycan (GAG) from Urechis unicinctus on the P2Y1 receptor pathway and expression of related factors in rat platelets. The concentration of calcium ion (Ca2+) in rat platelets was determined by double wavelength Fura-2 fluorescence spectrophotometry, and the concentrations of inositol trisphosphate (IP3) and glycoprotein IIb/IIIa (GPIIb/IIIa) in rat platelets were measured using the enzymatic immunoassay method. The phosphorylation levels of phospholipase C (PLC), phospholipase A2 (PLA2), protein kinase C (PKC), and p38 mitogen-activated protein kinase (p38MAPK) were also detected by Western blot. It was found that the GAG from U. unicinctus significantly reduced the Ca2+ and IP3 levels in rat platelets (p less then 0.05, p less then 0.01). Moreover, medium and high concentrations of GAG significantly reduced the concentration of the platelet membrane GPIIb/IIIa in rats (p less then 0.05, p less then 0.01). The phosphorylation levels of PLC, PLA)2), PKC and p38MAPK in rat platelets were also inhibited by GAG and P)2)Y)1) receptor blocker MRS2179 (p less then 0.05, p less then 0.01). However, the degree of inhibition of GAG was lower than that of MRS2179. The results laid a foundation for further utilization of the glycosaminoglycan.An alternative method of electrochemical oxidation was employed to degrade persistent compounds in the form of antibiotics using strong oxidizing agents such as hydroxyl ions. A 24 factorial design was employed to check the effect of four factors namely pH, current density, electrolysis time and electrolyte concentration set at their high (+) and low (-) levels on the antibiotics (amoxicillin, ciprofloxacin and erythromycin) degradation in water. The response was obtained in the form of COD (chemical oxygen demand) removal. A prediction model was developed to predict the values of COD removal. Later the main effect, contribution and interactions were studied with Design Expert Software 7.0. About 89.5% COD removal was obtained when pH and time were set at their high level and the other two factors at their low level. It was determined that the pH when set at high level (pH 9) had the most