نتایج جستجو برای: etec recombinant l t

تعداد نتایج: 1328284  

Journal: :Clinical and vaccine immunology : CVI 2016
Subhra Chakraborty Clayton Harro Barbara DeNearing Malathi Ram Andrea Feller Alicia Cage Nicole Bauers A Louis Bourgeois Richard Walker David A Sack

Enterotoxigenic Escherichia coli (ETEC) bacteria are the most common bacterial cause of diarrhea in children in resource-poor settings as well as in travelers. Although there are several approaches to develop an effective vaccine for ETEC, no licensed vaccines are currently available. A significant challenge to successful vaccine development is our poor understanding of the immune responses tha...

2008
Hejun Li Yuhua Li Xiaotian Qiu Xiaoyan Niu Yang Liu

In 2004, Jørgensen and coworkers proposed the MUC4 gene as a candidate gene of enterotoxigenic Escherichia coli (ETEC) F4ab/ac receptor in piglets and a mutation of G→C in intron 7 of MUC4 was identified to be associated with the ETEC F4ab/ac adhesion phenotypes. In this study, we used 310 piglets of three breeds (Landrace, Large White and Chinese Songliao Black) to analyze the relationship bet...

2013
Su-yun Jiang Jian Jiao Ting-ting Zhang Yong-ping Xu

AIM To compare the analytical methods used to study the pharmacokinetics of recombinant hirudin in the plasma of rats that had been injected with (125)I-recombinant hirudin. METHODS 2.0 mg/kg (125)I-recombinant hirudin were injected intravenously into rats. The recombinant hirudins in the plasma was analyzed by chromogenic substrate assay, enzyme-linked immunosorbent assay (ELISA), total radi...

Journal: :Journal of clinical microbiology 2004
Hind I Shaheen Sami B Khalil Malla R Rao Remon Abu Elyazeed Thomas F Wierzba Leonard F Peruski Shannon Putnam Armando Navarro Badria Z Morsy Alejandro Cravioto John D Clemens Ann-Mari Svennerholm Stephen J Savarino

Enterotoxigenic Escherichia coli (ETEC) causes substantial diarrheal morbidity and mortality in young children in countries with limited resources. We determined the phenotypic profiles of 915 ETEC diarrheal isolates derived from Egyptian children under 3 years of age who participated in a 3-year population-based study. For each strain, we ascertained enterotoxin and colonization factor (CF) ex...

2018
Loveline N Ngu Nadesh N Nji Georgia Ambada Apeh A Ngoh Ghislain D Njambe Priso Jules C Tchadji Abel Lissom Suzanne H Magagoum Carol N Sake Thibau F Tchouangueu George O Chukwuma Arinze S Okoli Bertrand Sagnia Rebecca Chukwuanukwu Denis M Tebit Charles O Esimone Alain B Waffo Chae G Park Klaus Überla Godwin W Nchinda

INTRODUCTION Recombinant Newcastle Disease virus (rNDV) vectored vaccines are safe mucosal applicable vaccines with intrinsic immune-modulatory properties for the induction of efficient immunity. Like all viral vectored vaccines repeated inoculation via mucosal routes invariably results to immunity against viral vaccine vectors. To obviate immunity against viral vaccine vectors and improve the ...

2018
Zhaoli Li Ningning Song Weijie Li Philip R. Hardwidge Zhigao Bu Siguo Liu

Enterotoxigenic Escherichia coli (ETEC) is one of the main causes of illness and death in neonatal and recently weaned pigs. Here, we sequenced the genomes of two ETEC strains that were previously used as inactivated vaccines in China.

Journal: :Infection and immunity 2003
Zeev Altboum Myron M Levine James E Galen Eileen M Barry

The genes that encode the enterotoxigenic Escherichia coli (ETEC) CS4 fimbriae, csaA, -B, -C, -E, and -D', were isolated from strain E11881A. The csa operon encodes a 17-kDa major fimbrial subunit (CsaB), a 40-kDa tip-associated protein (CsaE), a 27-kDa chaperone-like protein (CsaA), a 97-kDa usher-like protein (CsaC), and a deleted regulatory protein (CsaD'). The predicted amino acid sequences...

2011
Wlodzimierz Otto Boguslaw Najnigier Teodor Stelmasiak Roy M Robins-Browne

OBJECTIVE Enterotoxigenic Escherichia coli (ETEC) is the leading cause of travelers' diarrhea. The aim of this study was to investigate the ability of a powdered extract of hyperimmune bovine colostrum to protect against diarrhea in volunteers challenged with ETEC. MATERIALS AND METHODS Tablets were manufactured from a colostrum extract from cattle immunized with 14 ETEC strains, including se...

2017
Xi Lu Chunmeng Li Congcong Li Pengcheng Li Enqing Fu Yonghong Xie Faguang Jin

Enterotoxigenic Escherichia coli (ETEC) is a leading cause of diarrhea among children and travelers in developing countries, and heat-labile enterotoxin (LT) is one of the most important virulence factors. The pathogenesis of and virulence factors associated with ETEC have been well-characterized; however, the extent to which ETEC damages host cells remains unclear. In this study, we found that...

2014
Julio A. Guerra Yesenia C. Romero-Herazo Octavio Arzuza Oscar G. Gómez-Duarte

Enterotoxigenic Escherichia coli (ETEC) are major causes of childhood diarrhea in low and middle income countries including Colombia, South America. To understand the diversity of ETEC strains in the region, clinical isolates obtained from northern Colombia children were evaluated for multiple locus sequencing typing, serotyping, classical and nonclassical virulence genes, and antibiotic suscep...

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