background: the h9n2 subtype of avian influenzaviruses (aivs) have spread in asia and middle east countriesand have become a serious threat to poultry industry in iran.objectives:characterization of genes of h9n2 subtype involvingin pathogenicity and diagnosis are crucial in control of avianinfluenza outbreaks. the nonstructural (ns) gene and its proteinproducts (ns1 & ns2) are important as...

respiratory failure is a serious complication of h1n1 influenza that, if not properly managed, can cause death. when mechanical ventilation is not effective, the only way to save the patient’s life is extracorporeal membrane oxygenation (ecmo). a prolonged type of cardiopulmonary bypass, ecmo is a high-cost management modality compared to other conventional types and its maintenance requires sk...

objective: to investigate about frequency of different subtypes of stroke in south of iran methods: this  is a retrospective, single-center study  conducted at namazi hospital, shiraz, south of iran. age, sex, length of hospitalization and  mortality  of  stroke patients were recorded by reviewing hospital medical records. results: 16 351 patients (53.6% male, 46.4%female) were recruited.  isch...

conclusions after seven consecutive passages of both cell cultures, the h9n2 virus showed similar antigenicity, also no change on viral titer level and virus replication behavior in adaptation was found. the results highlighted the use of a549 cells for efficient virus isolation. results the influenza virus infectivity was not significant difference in these cells in the presence of trypsin. th...

background in the influenza a viruses, neuraminidase (na), hemagglutinin (ha), pb2, ns1 and m are responsible for the disease pathogenicity. the mechanism of pathogenicity differs among these viruses. binding of host proteases by the viral na, sequence of ha in the cleavage and receptor-binding sites, number of oligosaccharide side chains of ha, shortening of na, and substitutions in pb2, ns1 a...

objective(s): prostaglandins have been shown to mediate the gastro-protective effect of sodium hydrosulfide (nahs) but effect of nahs on mrna expression of prostaglandin e2 receptors (ep1, 3-4; eps) has not been investigated. therefore, this study designed to evaluate the effect of nahs on mrna expression of eps receptors in response to mucosal acidification and distention-induced gastric acid ...