objective(s): the rotavirus nonstructural protein 4 (nsp4) is responsible for the increase in cytoplasmic calcium concentration through a phospholipase c-dependent and phospholipase c-independent pathways in infected cells. it is shown that increasing of intracellular calcium concentration in rotavirus infected cells is associated with the activation of some members of protein kinases family su...

The action of ruthenium red (RR) on Ca" loading by and Ca" release from the sarcoplasmic reticulum (SR) of chemically skinned skeletal muscle fibers of the rabbit was investigated . Ca" loading, in the presence of the precipitating anion pyrophosphate, was monitored by a light-scattering method . Ca" release was indirectly measured by following tension development evoked by caffeine . Stimulati...

the effects of hydroalcoholic extract of peganum harmala seeds (eps) on spontaneous rhythmic contractions of isolated rat uterine was investigated in this study. eps was tested on the isolated uterus and endometrium free (i.e. stripped myometrium) preparations. eps was found to exhibit significant spontaneous contractions of the uterus and stripped myometrium relative to the solvent control. af...

in this study, we aimed to investigate the peripheral antinociception effects of specificphosphodiesterase 5 (pde-5) inhibitor vardenafil on carrageenan-induced nociception in rats,and the role of calcium besides the l-arginine- nitric oxide (no)- cyclic guanosine monophophate(cgmp) pathway in these effects. hyperalgesia was induced by the intraplantar injection of 0.1ml fresh carrageenan solut...

debaryomyces hansenizopf isolated from the fructoplane of apples were found to be effective as biocontrol agent against rot of papaya caused by ulocladium. chartarum(pr.) simm. the ability of d. hansenii to prevent infection of u. chartarum was lost when the antagonist cells were killed by autoclaving. cell free culture filtrates of antagonist were unable to prevent disease incidence. efficacy ...

conclusions cigarette smoking and bmi are two main confounding factors affecting the correlation of calcium and phosphate concentrations in the saliva and periodontal status. background periodontitis is a multi-factorial disease related to the formation of dental plaque. saliva composition plays a role in plaque formation and in the development of periodontal disease. objectives this study was ...

to investigate uterine fluid and serum calcium (ca) and magnesium (mg) variations during the estrus cycle in water buffaloes, 71 genital tracts and blood samples were collected from the abattoir in urmia. the phase of the estrous cycle was determined by examining ovarian structures. 18 animals were pro-estrous, 15 estrous, 16 met-estrous and 22 diestrous. the uterine fluid was collected by gent...

despite two decades of artificial spawning of wild carp (cyprinus carpio) to rehabilitate natural populations in the southeastern caspian sea, there are still no appropriate physiological criteria for selecting competent brooders during induced spawning. to this end, the plasma concentrations of vitellogenin (vtg), phosphorus (p) and calcium (ca) were measured during ovarian development, as pot...