background: pan-igg specific monoclonal antibodies (mabs) are essential tools for assessment of humoral immunity, immune deficiency and gammopathy. in this study, four hybridoma clones producing mabs with different specificities for human igg isotypes were established. methods: splenocytes from balb/c mice immunized with fc fractions of human igg were fused with sp2/0 myeloma cells. hybridoma c...

universal vaccination of neonates and children against diphtheria, tetanus and pertussis has had a tremendous impact on the control of these infectious diseases worldwide. immunization by the triple diphtheria, tetanus and whole cell pertussis vaccine (dtwp) has been applied in iran for almost 50 years. periodic assessment of immunogenicity of this vaccine is an important aspect of successful m...

oral-facial-digital syndrome as heterogeneous developmental conditions is characterized by abnormalities in the oral cavity, facial features and digits. furthermore, central nervous system (cns) abnormalities can also be part of this developmental disorder. at least 13 forms of ofds based on their pattern of signs and symptoms have been identified so far.  type 1 which is now considered to be a...

background and aims: the causal agents of viral lettuce big vein disease are two viruse, lettuce big vein associated virus (varicosavirus) and mirafiori lettuce virus (ophiovirus). these viruses have coat proteins of similar size but have different morphologies and serologically unrelated.the purpose of this study was to distinguish and detect lbvav and milv in lettuce fields in tehran province...

purpose: retinitis pigmentosa (rp) is a hereditary eye disease in human beings. it commences at childhood and continues by nyctalopia and gradual reduction of visual field and ends up by blindness. it may be inherited in three forms of autosomal dominant, autosomal recessive and sex-linked. in this investigation we intend to study rp type as a sex-linked disease and its location on x chromosome...

cystic echinococcosis is an important zoonosis in the sheep rising areas of iran. to develop a simple and reliable diagnostic method for echinococcus infection in definitive hosts, e. granulosus polyoclonal antibodies (polyabs) were prepared from adult worm in rabbit. a selected poab was used for coproantigen detection in faecal samples obtained from animals naturally infected with echinococcus...

penicillin g acylase from e. coli ta1 was immobilized by cross-linked enzyme aggregates (clea), a new method for immobilization. this biocatalyst and commercial immobilized penicillin g acylase (pga-450) were used to study the effect of ph, temperature and substrate concentration on the synthesis of ampicillin from phenyl glycine methyl ester (pgme) and 6-aminopenicillanic acid (6-apa). compare...

background toxoplasma gondii is an opportunistic parasitic organism causing infection in many mammals, including immunosuppressed patients. toxoplasmosis as an opportunistic infection is highly prevalent among patients receiving a kidney transplant. objectives the purpose of this study was to identify and determine the prevalence of toxoplasma gondii in clinical samples collected from patients ...

x-linked agammaglobulinemia (xla) is a hereditary immunodeficiency, characterized by an early onset of recurrent bacterial infections, hypogammaglobulinemia and markedly reduced b lymphocytes number. in order to determine the association of neutropenia among iranian patients with xla, hospital records of 30 patients with confirmed xla in children medical center hospital, were reviewed. eight ou...

Background: Downy mildew caused by Plasmopara halstedii is one of the most devastating diseases of sunflower worldwide. So far several dominant resistance genes designated as Pl have been identified and their molecular markers linked to these genes are available. However, no information on the resistance genes is available in Iranian lines. Objective: In this study, the presence of three map-b...