Background: Pinus eldarica is a widely growing pine in Iran consisting of biologically active constituents with antioxidant properties. This study investigates the effect of hydroalcoholic extract of P. eldarica bark against oxidative damage induced by hydrogen peroxide (H2O2) in human umbilical vein endothelial cells (HUVECs). Methods: The total phenolic content of p. eldarica extract was dete...

the aim of this study was production and partial purification of α-amylase enzyme by bacillus licheniformis. b. licheniformis was allowed to grow in broth culture for purpose of inducing α-amylase enzyme. optimal conditions for amylase production by b. licheniformis are incubation period of 120 h, temperature of 37 °c and ph 7.0. the α-amylase enzyme was purified by ion exchange chromatography ...

Abstract Concentrations and elemental ratios of suspended particulate organic matter influence many biogeochemical processes in the ocean, including patterns phytoplankton nutrient limitation links between carbon, nitrogen phosphorus cycles. Here we present direct measurements cellular content stoichiometric for discrete populations spanning broad environmental conditions across several ocean b...

The inhibitory effects of radiation and chemicals on the cellular division proceses in yeast and Escherichia coli in the logarithmic phases of growth have been studied in this laboratory. An investigation of phosphorus metabolism was undertaken as part of a program to correlate metabolic changes accompanying the inhibition of cellular division. In order to devise satisfactory experimental condi...

There have been many investigations on the uptake of radioactive phosphorus by viral infected cells (1, 2), but the number of studies in which cells of animal origin are employed are few. To our knowledge, there are no studies on the effects of poliomyelitis virus on phosphorus metabolism in the HeLa cell. However, this cell has been successfully infected by the poliomyelitis virus (3, 4). In t...

Background: Inflammatory responses in individuals exposed to sulfur mustard occur in some organs such as lung, skin and eyes. These organs manifest overreaction in cellular and humoral immune responses. Over a long period, the immune responses often continues toward chronic inflammatory processes with some interventions. Obviously some elements have been deregulated. Therefore, this study evalu...

Trichoderma sp., a well known biological control agent against several phytopathogens, was tested for its phosphate (P) solubilizing potential. Fourteen strains of Trichoderma sp. were isolated from the forest tree rhizospheres of pinus, deodar, bamboo, guava and oak on Trichoderma selective medium. The isolates were tested for their in-vitro P-solubilizing potential using National Botanical Re...