Whole-cell pertussis vaccine (wP) has been imperative and highly effective in preventing childhood deaths due to pertussis. Pertussis toxin is one of the virulence factors of Bordetella pertussis in all available pertussis vaccines. wP production in Razi Vaccine and Serum Research Institute is according to bioreactor culture of B. pertussis strains in B2 medium. The aim ...

Apoptosis: Apoptosis is a self-killing mechanism of genetically-programmed cell death that is involved in normal development and homeostasis in the animal kingdom. The deregulation of apoptosis plays a major role in variety of pathologies, including cancer, autoimmunity, immunodeficiency and neurodegenerative disease (1-4). The apoptotic program of cell death is orchestrated by cysteine-depende...

Parietal cell antibody is a marker for autoimmune gastritis. With identification of gastric H/K ATPase as its molecular target, ELISAs have been introduced. We compared performance of ELISA with immunofluorescence in a retrospective and prospective sera set and correlated the results with intrinsic factor antibody. In 138 retrospective sera selected for positivity or negativity for intrinsic fa...

backgroundataxia telangiectasia (a-t) is a common genetically inherited cause of early childhood-onset ataxia. the infrequency of this disease, vast phenotype variation, disorders with features similar to those of a-t, and lack of definite laboratory test, make diagnosis difficult.  in addition, there is no rapid reliable laboratory method for identifying a-t heterozygotes, who susceptible to i...

Determination of percentages of CD4+ and CD8+ T cells from patients with human immunodeficiency virus infection is usually done by flow cytometric analysis. We compared a cell marker ELISA with flow cytometry for quantitation of CD4 and CD8 molecules on T lymphocytes, and correlated the values both with the number of CD4+ and CD8+ T lymphocytes and with clinical data. Results by cell marker ELI...

Herein, we presented the first report on bluetongue (BT) disease in 10 pregnant camels in a herd fromKerman province, Iran. All sera samples were tested serologically (AGID, C-ELISA). We also used the Razi-BK cell line, performed primary culture of ovine kidney and inoculated intravenously the embryonatedchicken eggs (ECE) to culture and isolate the BT virus. Efforts to culture and isolation of...