نتایج جستجو برای: letal toxin b

تعداد نتایج: 942877  

Journal: :International Journal of Infectious Diseases 2007

Journal: :physiology and pharmacology 0
ali rastqar mahyar janahmadi neuroscience research center and dept. physiology, faculty of medicine, shaheed beheshti yaghub fathollahi mahyar janahmadi 1neuroscience research center and dept. of physiology, shahid beheshti university (medical campus), tehran,iran .

introduction: the functional effects of orexin-b on the calcium spikes and excitability of the neuronal soma membrane of garden snail, helix aspersa were studied. methods: conventional intracellular recording, under the current clamp conditions was performed to examine the effects of orexin-b on the configuration and electrophysiological properties of calcium spikes. results: application of ore...

Journal: :The FASEB Journal 2006

Azim Akbarzadeh, Behrokh Farahmand, Davoud Nouri Inanlou, Fatemeh Yari, Maryam Saleh, Shamsi Yari,

In this study, mutant forms of Bacillus thuringiensis spp. israelensis (H14) were produced. These mutants were identified when the cells were cultured on chloramphenicol plates and stained with crystal violet. Protoplasts of the mutants were isolated by enzymatic digestion (lysozyme) of the cell walls at the presence of an osmotic stabilizer. The protoplasts were induced to fuse to each other i...

Journal: Vaccine Research 2015

Introduction: Despite high level of vaccination against pertussis‚ whooping cough has re-emerged as a health threat, especially in infants. This could be related to expansion of Bordetella pertussis with novel alleles for virulence factors including the pertussis toxin promoter, ptxP3. Compared to ptxp1 strains‚ ptxp3 strains produce more pertussis toxin which results in immune supp...

Journal: :FEMS microbiology letters 1999
H Kato N Kato S Katow T Maegawa S Nakamura D M Lyerly

The repeating sequences of the toxin A gene from toxin A-negative, toxin B-positive (toxin A-, toxin B+) strains of Clostridium difficile which were isolated in geographically separated facilities in Japan and Indonesia were determined. All six strains tested had identical repeating sequences with two deletions (1548 and 273 nucleotides in size) in the toxin A gene. A PCR method was designed to...

Journal: :Boletín de la Sociedad Peruana de Medicina Interna 2022

El 2,4 dinitrofenol (DNF) es un químico que desacopla la fosforilación oxidativa produciendo muerte celular. Se presenta el caso de individuo ingirió 2 gramos DNF con finalidad perder peso. Fue atendido a las 22 horas exposición, diaforesis, agitación, sensación alza térmica y palpitaciones. Presentó fiebre, taquicardia taquipnea; y, en los exámenes auxiliares se evidenció acidosis láctica, azo...

Journal: :iranian biomedical journal 0
شمسی یاری shamsi yari داود نوری اینانلو davoud nouri inanlou فاطمه یاری fatemeh yari مریم صالح maryam saleh بهرخ فرهمند behrokh farahmand عظیم اکبرزاده azim akbarzadeh

in this study, mutant forms of bacillus thuringiensis spp. israelensis (h14) were produced. these mutants were identified when the cells were cultured on chloramphenicol plates and stained with crystal violet. protoplasts of the mutants were isolated by enzymatic digestion (lysozyme) of the cell walls at the presence of an osmotic stabilizer. the protoplasts were induced to fuse to each other i...

Journal: :iranian journal of allergy, asthma and immunology 0
mana oloomi molecular biology unit, pasteur institute of iran, tehran, iran saeid bouzari molecular biology unit, pasteur institute of iran, tehran, iran

shiga toxin (stx) is the principal virulence factor of shigatoxigenic escherichia coli (stec), a food-born pathogen associated disease with uncomplicated diarrhea or the hemolytic-uremic syndrome. in this study, rabbit polyclonal anti recombinant a, b subunits of shiga toxin and holotoxin antisera were raised and employed for immunological purpose. by immunoblotting, these antisera recognized r...

Journal: :Mediators of Inflammation 1996
R. A. Cardoso A. A. Melo Filho M. C. C. Melo D. M. Lyerly T. D. Wilkins A. A. M. Lima R. A. Ribeiro G. E. P. Souza

This study investigated the ability of Clostridium difficile toxin B, isolated from the VPI 10463 strain, to induce fever and neutrophilia in rats. Intravenous injection of toxin B (0.005-0.5 mug/kg) evoked a dose-dependent increase in body temperature. The febrile response to 0.5 mug/kg of the toxin started in 2.5 h, peaked at 5 h, and subsided fully within 24 h. Toxin B also induced a dosedep...

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