brown alga, turbinaria conoides was successively extracted with n-hexane, cyclohexane, methanol and ethanol:water (1:1). the extracts were evaluated for antibacterial and antifungal activities by disc diffusion method. minimal inhibitory concentration was determined for active extracts by broth dilution method. the antiviral activity and cytotoxicity of the extracts were tested in human embryon...

background: hepatitis g virus (gbv-c) is a single strand rnapositive virus and is a member of flaviviridae family. infection with the virus is prevalent add has worldwide distribution. accurate diagnosis of the virus is very important, because of co-infection with other important viruses like hcv, hbv and hiv, it may influence on pathogenesis, disease progression and response to viral therapy. ...

aim : since data about prevalence of jc virus in iranian population is scarce, this study was designed to evaluate the prevalence of jc virus in healthy individuals who had attended fajr hospital and farjam clinical laboratory in tehran, iran. background : jc virus is the causative agent of progressive multifocal encephalopathy (pml) in individuals with suppressed immune system. there are some ...

in recent years, biotechnology has provided the possibility of creating genetically modified (gm) organisms by transferring genes from sources such as viruses, bacteria, animals, and plants into usually unrelated species. this ability to overcome insurmountable physiological barriers by exchanging genetic materials among all living organisms is a double-edged sword. on the one hand, it allows t...

this research was performed in order to study and diagnose potato virus y,potyvirus (pvy), potato virus x,potexvirus (pvx), potato virus s,carlavirus (pvs), potato virus a,potyvirus(pva) and potato leafroll luteovirus (plrv) on tubers and leaves of different potato varieties, namely, solea, safran, floris, proventa, milva, universa, lady olympia, vangogh, and marabel grown in afyon region of tu...

Dengue is a vector-borne disease caused by dengue virus. According to the recent report of CDC that one-third population of the world are at high risk with Dengue fever. The prevalence of the dengue hemorrhagic fever was found more in tropical and sub-tropical regions of the world. Aedes mosquitoes was reported as the main cause of transmission of dengue virus. So the current study was planned ...