grape seed proanthocyanidin extract (gspe) has a broad spectrum of biologic properties against oxidative stress. this study aimed to investigate the effects of gspe on biochemical factors and antioxidant enzymes of erythrocyte in diabetic rats. diabetes was induced through single injection of streptozotocin (50 mg.kg-1, i.p). forty male sprague-dawley rats were divided into four groups: group 1...

an experiment was conducted to evaluate the efficacy of exogenous enzymes supplementation (es) on performance, carcass traits and some blood parameters of broilers chickens. one hundred and eighty day old chicks with 40 ± 2 g initial body weight in a completely randomized design with 3 treatments and 4 replications were fed experimental diets included, 1) basal diet no enzymes (control), 2) bas...

dairy farmers have been longing for simple and economical methods of early pregnancy diagnosis. urine based biochemical and mineral assays could be one of those methods, owing to the ease of sample collection and relatively simple and economical assays involved. however, basic information on changes in urinary composition during early pregnancy in cattle is lacking. this study was designed to e...

oral supplementation with 50, 100 and 150 ?g/ml calcium chloride to the fifth stadium larvae of csr2xcsr4 biovoltine hybrid silkworm, b. mori on fat body glycogen, protein, and total lipids and haemolymph trehalose and protein have been studied. one of the four normal feeds per day was substituted with treated leaves fed to silkworms at fifth instar larvae. the controls were fed with the leaves...

diazinon is commonly used for pest control in the agricultural fields surrounding freshwater reservoirs. this study was conducted to determine the chronic toxicity of organophosphorous pesticide and its effects on some hematological parameters and biochemical blood plasma profiles of common carp, cyprinus carpio. diazinon was applied at concentrations of 60 and 120î¼g/l preparations in 10, 20 a...

artificial fertilizers and mainly organophosphate herbicide are used by farmers to enhance their crop and control pests. in order to investigate the effects of pretilachlore, fingerlings of caspian roach were exposed to a range of concentrations of toxin close to those of estuary for 96 h. due to movement of these fingerlings in a gradient of salinity from freshwater to brackishwater some physi...

Time series data on biochemical reactions reveal transient behavior, away from chemical equilibrium, and contain information on the dynamic interactions among reacting components. However, this information can be difficult to extract using conventional analysis techniques. We present a new method to infer biochemical pathway mechanisms from time course data using a global nonlinear modeling tec...

The transient kinetic behaviour of an open single enzyme, single substrate reaction is examined. The reaction follows the Van Slyke-Cullen mechanism, a spacial case of the Michaelis-Menten reaction. The analysis is performed both with and without applying the quasi-steady-state approximation. The analysis of the full system shows conditions for biochemical pathway coupling, which yield sustaine...

background: paraquat is a non-selective contact herbicide, widely used to control weeds in agriculture farms and aquatic plants in surface waters. paraquat can have adverse effects on the health of aquatic organisms. the aim of this study was to detect the alterations in the blood biochemical parameters of common carp exposed to sub-lethal concentrations of commercial formulations of paraquat. ...

background: cholangiocarcinoma is an invasive biliary malignancy with poor prognosis. diagnostic accuracy of conventional methods is low which is mainly due to the specific anatomy of the disease. the aim of this study was to evaluate the diagnostic value of biochemical profile and tumor marker of the bile in patients with malignant cholestasis compared to that of choledocholithiasis. methods: ...