bacillus sp. guf8, isolated from acidic soil samples of a tea farm was identified as bacillus cereus, based on 16s rdna sequencing and standard bacterial identification methods. following optimization of enzyme production, the resulting α-amylase was purified by acetone precipitation and ion exchange chromatography. consequently, thermostability and kinetic parameters of the purified enzyme wer...

conclusions gp55 of human cmv is considered as an important candidate for immunotherapy. in this study, we selected three specific clones against gp55. the scfvs reacted only with the corresponding peptide in a positive elisa. the scfv2 with 68.8% neutralizing effect showed the potential to be considered for prophylaxis and treatment of cmv infections, especially in solid organ transplant recip...

background: nanoparticles have been considered as promising tools because of their high applicability. recently, nanoparticles have been evaluated for their ability to increase the immune responses as adjuvants. silver-nanoparticles (agnps) have shown promising results in enhancing th-2 immune responses and to produce potent neutralizing antibodies. neutralizing antibodies are considered as the...

background and aims: glycoprotein b (gb) is among the most important immunogenic proteins of hsv-1 that is now being used as recombinant vaccine to induce protectively against the virus. it is believed that gb is responsible for induction of neutralizing antibody and up to 90% of ctl (cytotoxic t cell) activity against hsv-1 in some haplotypes. methods: in the present study the antibody titer i...

background: dengue is a global arboviral threat to humans; causing 390 million infections per year. the availability of safe and effective tetravalent dengue vaccine is a global requirement to prevent epidemics, morbidity, and mortality associated with it. methods: five experimental groups (6 mice per group) each of 5-week-old balb/c mice were immunized with vaccine and placebo (empty plasmid) ...

introduction rabies is a fatal disease and has a threatening risk for the public health. immunosuppression is related to a wide variety of diseases. it is recommended that immunosuppressed patients receive the full post-exposure vaccination, concerning that the immune response may be inadequate. the aim of this study is to determine the level of rabies neutralizing antibody in immunosuppressed ...

A micro neutralization test was used for the detection and evaluation of mumps neutralizing antibodies. A total of 1037 blood samples from selected groups of students aged 7 to 22 years in south and east of Tehran, 139 blood samples from the umbilical cords of pregnant women at two Tehran hospitals at delivery time, and 190 samples from children under five years of age who were living in tw...