نتایج جستجو برای: icea

تعداد نتایج: 98  

Journal: :Journal of clinical microbiology 1999
Y Yamaoka T Kodama O Gutierrez J G Kim K Kashima D Y Graham

There is continuing interest in identifying Helicobacter pylori virulence factors that might predict the risk for symptomatic clinical outcomes. It has been proposed that iceA and cagA genes are such markers and can identify patients with peptic ulcers. We compared H. pylori isolates from four countries, looking at the cagA and vacA genotypes, iceA alleles, and presentation of the infection. We...

Journal: :JCP 2009
Zhi-Hua Hu

The purpose of this study is to develop a system to utilize the successful experiences and help the beginners of garment pattern design (GPD) by optimization methods. A hybrid algorithm (NN-ICEA) based on Neural Network (NN) and immune co-evolutionary algorithm (ICEA) to predict the fit of the garments and search optimal sizes. ICEA takes NN as fitness function and procedures including clonal p...

2012
Seiji Shiota Masahide Watada Osamu Matsunari Shun Iwatani Rumiko Suzuki Yoshio Yamaoka

BACKGROUND Although the iceA (induced by contact with epithelium) allelic types of Helicobacter pylori have been reported to be associated with peptic ulcer, the importance of iceA on clinical outcomes based on subsequent studies is controversial. The aim of this study was to estimate the magnitude of the risk for clinical outcomes associated with iceA. METHODS A literature search was perform...

Journal: :Journal of bacteriology 2006
Marc Marenda Valérie Barbe Géraldine Gourgues Sophie Mangenot Evelyne Sagne Christine Citti

An integrative conjugative element, ICEA, was characterized in Mycoplasma agalactiae strain 5632, in which it occurs as multiple chromosomal copies and as a free circular form. The distribution of ICEA sequences in M. agalactiae strains and their occurrence in Mycoplasma bovis suggest the spreading of the element within or between species.

Journal: :Gut 2000
P Y Zheng J Hua K G Yeoh B Ho

BACKGROUND Studies in Western populations suggest that cagA, iceA, and vacA gene status in Helicobacter pylori isolates is associated with increased virulence and peptic ulcer disease. AIM To investigate the relationship between peptic ulcer and expression of Lewis (Le) antigens as well as cagA, iceA, and vacA in H pylori isolates in Singapore. METHODS Expression of Le antigens in H pylori ...

2014
Hossein Sedaghat Rezvan Moniri Raika Jamali Abbas Arj Mohsen Razavi Zadeh Seyed Gholam Abbas Moosavi Maryam Rezaei Mohammad pourbabaee

BACKGROUND AND OBJECTIVES Helicobacter pylori has been strongly associated with peptic ulcer diseases, chronic gastritis, ulcers, and reported as a risk factor for gastric cancer, too. The vaculating cytotoxin (vacA), the cytotoxin associated genes (cagA), the induced by contact with epithelium factor antigen (iceA gene), blood adhesion binding antigen (babA2), and outer membrane protein oipA h...

Background and Aims: Helicobacter pylori (H. pylori) is a gram-negative, microaerophilic, spiral-shaped flagellated bacterium that is urease, catalase and oxidase positive. One of its pathogenicity factors is the iceA gene. H. pylori has recently been recognized as a genetic indicator for the development and evolution of duodenal ulcer disease in the East. This study aimed to determine the pres...

2017
Rabi Prakash Sharma Muhammad Miftahussurur Pradeep Krishna Shrestha Phawinee Subsomwong Tomohisa Uchida Yoshio Yamaoka

Background: The data about the association between Helicobacter pylori putative virulence factors; iceA and jhp0562/β-(1,3)galT with clinical outcomes are still controversial. We identified and analyzed two putative H. pylori virulence factors in Nepalese strains. Methods: The iceA and jhp0562/β-(1,3)galT allelic types were determined by polymerase chain reaction amplification. Histological ana...

Journal: :Journal of clinical microbiology 2000
Y Ito T Azuma S Ito H Suto H Miyaji Y Yamazaki T Kato Y Kohli Y Keida M Kuriyama

The Helicobacter pylori iceA gene was recently identified as a genetic marker for the development of peptic ulcer in a Western population. To assess the significance of iceA subtypes of H. pylori in relation to peptic ulcer, 140 Japanese clinical isolates (88 from Fukui and 52 from Okinawa) were characterized. Sequence analysis of the iceA1 gene from 25 representative Japanese strains was also ...

2016
Xiaojun Huang Zhaomin Deng Qiang Zhang Wanyi Li Baoning Wang Mingyuan Li

BACKGROUND The complex pathogenesis of Helicobacter pylori (H. pylori) and the features of the host influence the diverse clinical outcomes. A mass of studies about virulence genes have accelerated the exploration of pathogenesis of H. pylori infection. Induced by contact with epithelium gene A (iceA) is one of the biggest concerned virulence genes. In this study, we explored the relationship b...

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