We examined seven enterotoxigenic Escherichia coli strains which produced colonization factor antigen I (CFA/I). Four of these strains were from South Africa (three serotype O78:H12 and one serotype O63:H-), one was from Ethiopia (O78:H12), and two were from Bangladesh (O78:H11 and O78:H12). Plasmids coding for CFA/I were mobilized from six of these strains by using resistance or enterotoxin fa...

background: meningioma is among the most common slow growing central nervous neoplasms, which recurs locally despite the benign histologic features. the aim of this study was to evaluate osteopontin and ki67 expressions in different histologic grades of meningioma in a group of iranian people. methods: in this cross-sectional study, first, the paraffin blocks with the definite pathological diag...

the aim of this study was to prepare a new formula of leishmania major (l. major) crude antigen and evaluate its effect on immune system. for this purpose l. major promastigotes were cultured, harvested, washed, and resuspended in physiologic saline and the suspensions were dispersed in five equal batches. 0.1 ml of various doses of the cocktail antigen were injected intradermaly in three group...

background: the aim of this study was to assess the performance of antigen b (agb) isolated from different echinococcus granulosus intermediate hosts and from different cyst locations for immu­nodiagnosis of human cystic echinococcosis (ce). methods: hydatid cyst fluids were collected from lung and liver cysts of sheep, liver cysts of goats, lung cysts of camels and cattle, and liver cysts of h...

Two new excited bands built on the ?h11/2 configuration have been identified in Nd135 addition to known band. The energy spectra of and available electromagnetic transition probabilities are good agreement with theoretical results obtained using quasiparticle-plus-triaxial-rotor model calculations. properties identify them as tilted precession instead wobbling bands. Our give a insight into int...

Hydatid cyst fluid has been used as a source of antigen for the serodiagnosis of Echinococcus granulosus infection. Due to cross-reactions with antigens shared by other helminthes, the specific antigen from hydatid cyst fluid was purified by many workers. We used a relatively simple technique for purification of specific antigen from sheep hydatid cyst fluid. Isopycnic ultracentrifugation w...

Enterotoxigenic Escherichia coli (ETEC) is a non-invasive enteric pathogen of considerable public health importance, being one of the most common attributable causes of diarrheal illness in infants and young children in developing countries and the most common cause of traveler's diarrhea. To enhance study-to-study consistency of our experimental challenge model of ETEC in volunteers, and to al...