Literature DB >> 12089290

Virulence genes in Helicobacter pylori strains from West Bengal residents with overt H. pylori-associated disease and healthy volunteers.

Santanu Chattopadhyay1, Simanti Datta, Abhijit Chowdhury, Sujit Chowdhury, Asish K Mukhopadhyay, K Rajendran, S K Bhattacharya, Douglas E Berg, G Balakrish Nair.   

Abstract

We compared putative molecular markers of virulence (vacA, cagA, and iceA) of Helicobacter pylori strains isolated from 52 adult duodenal ulcer patients from West Bengal, India, with those of H. pylori strains isolated from 48 adult healthy volunteers from the same region. On the basis of genotyping by PCR, we conclude that the H. pylori strains isolated from the two study groups were indistinguishable and that there are geographic variations in the association of certain putative H. pylori virulence genes with clinical status.

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Year:  2002        PMID： 12089290      PMCID： PMC120544          DOI： 10.1128/JCM.40.7.2622-2625.2002

Source DB:  PubMed          Journal:  J Clin Microbiol        ISSN： 0095-1137            Impact factor:   5.948


  17 in total

1.  Sequence analysis and clinical significance of the iceA gene from Helicobacter pylori strains in Japan.

Authors:  Y Ito; T Azuma; S Ito; H Suto; H Miyaji; Y Yamazaki; T Kato; Y Kohli; Y Keida; M Kuriyama
Journal:  J Clin Microbiol       Date:  2000-02       Impact factor: 5.948

2.  Distinctiveness of genotypes of Helicobacter pylori in Calcutta, India.

Authors:  A K Mukhopadhyay; D Kersulyte; J Y Jeong; S Datta; Y Ito; A Chowdhury; S Chowdhury; A Santra; S K Bhattacharya; T Azuma; G B Nair; D E Berg
Journal:  J Bacteriol       Date:  2000-06       Impact factor: 3.490

3.  Relationship between Helicobacter pylori iceA, cagA, and vacA status and clinical outcome: studies in four different countries.

Authors:  Y Yamaoka; T Kodama; O Gutierrez; J G Kim; K Kashima; D Y Graham
Journal:  J Clin Microbiol       Date:  1999-07       Impact factor: 5.948

4.  Promoters of the CATG-specific methyltransferase gene hpyIM differ between iceA1 and iceA2 Helicobacter pylori strains.

Authors:  Q Xu; M J Blaser
Journal:  J Bacteriol       Date:  2001-07       Impact factor: 3.490

5.  Cytotoxin-associated gene A and vacuolating cytotoxin A in human isolates of Helicobacter pylori and their association with the clinical status of ulcer disease.

Authors:  A Carattoli; C Pezzella; A Pietroiusti; A Galante; P Pezzotti; I Luzzi
Journal:  Eur J Gastroenterol Hepatol       Date:  2000-11       Impact factor: 2.566

6.  vacA genotypes in Helicobacter pylori strains isolated from children with and without duodenal ulcer in Brazil.

Authors:  V R De Gusmão; E Nogueira Mendes; D M De Magalhães Queiroz; G Aguiar Rocha; A M Camargos Rocha; A A Ramadan Ashour; A S Teles Carvalho
Journal:  J Clin Microbiol       Date:  2000-08       Impact factor: 5.948

7.  A 12-amino-acid segment, present in type s2 but not type s1 Helicobacter pylori VacA proteins, abolishes cytotoxin activity and alters membrane channel formation.

Authors:  M S McClain; P Cao; H Iwamoto; A D Vinion-Dubiel; G Szabo; Z Shao; T L Cover
Journal:  J Bacteriol       Date:  2001-11       Impact factor: 3.490

8.  Distribution of open reading frames of plasticity region of strain J99 in Helicobacter pylori strains isolated from gastric carcinoma and gastritis patients in Costa Rica.

Authors:  A Occhialini; A Marais; R Alm; F Garcia; R Sierra; F Mégraud
Journal:  Infect Immun       Date:  2000-11       Impact factor: 3.441

Review 9.  Unravelling the pathogenic role of Helicobacter pylori in peptic ulcer: potential new therapies and vaccines.

Authors:  J L Telford; A Covacci; P Ghiara; C Montecucco; R Rappuoli
Journal:  Trends Biotechnol       Date:  1994-10       Impact factor: 19.536

10.  Mosaicism in vacuolating cytotoxin alleles of Helicobacter pylori. Association of specific vacA types with cytotoxin production and peptic ulceration.

Authors:  J C Atherton; P Cao; R M Peek; M K Tummuru; M J Blaser; T L Cover
Journal:  J Biol Chem       Date:  1995-07-28       Impact factor: 5.157
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  27 in total

1.  Multiplex PCR assay for rapid detection and genotyping of Helicobacter pylori directly from biopsy specimens.

Authors:  Santanu Chattopadhyay; Rajashree Patra; T Ramamurthy; Abhijit Chowdhury; Amal Santra; G K Dhali; S K Bhattacharya; Douglas E Berg; G Balakrish Nair; Asish K Mukhopadhyay
Journal:  J Clin Microbiol       Date:  2004-06       Impact factor: 5.948

2.  cagA and vacA status and influence of Helicobacter pylori infection on serum oxidative DNA damage in Iranian patients with peptic ulcer disease.

Authors:  Z Khodaii; S M H Ghaderian; R Akbarzadeh Najar; H Nejati; A S Tabatabaei Panah
Journal:  Ir J Med Sci       Date:  2010-08-20       Impact factor: 1.568

3.  Association between vacA genotypes and the risk of duodenal ulcer: a meta-analysis.

Authors:  Bei-Bei Zhang; Yong Li; Xue-Qiang Liu; Pei-Jian Wang; Bo Yang; Dong-Lin Bian
Journal:  Mol Biol Rep       Date:  2014-07-26       Impact factor: 2.316

4.  Intact cag pathogenicity island of Helicobacter pylori without disease association in Kolkata, India.

Authors:  Rajashree Patra; Santanu Chattopadhyay; Ronita De; Simanti Datta; Abhijit Chowdhury; T Ramamurthy; G Balakrish Nair; Douglas E Berg; Asish K Mukhopadhyay
Journal:  Int J Med Microbiol       Date:  2010-12-30       Impact factor: 3.473

5.  Diversity of Helicobacter Pylori cagA and vacA Genes and Its Relationship with Clinical Outcomes in Azerbaijan, Iran.

Authors:  Reza Ghotaslou; Morteza Milani; Mohammad Taghi Akhi; Mohammad Reza Nahaei; Alka Hasani; Mohammad Saeid Hejazi; Mohammad Meshkini
Journal:  Adv Pharm Bull       Date:  2013-02-07

6.  Prevalence of virulence-associated genotypes of Helicobacter pylori and correlation with severity of gastric pathology in patients from western Sicily, Italy.

Authors:  A Chiarini; C Calà; C Bonura; A Gullo; G Giuliana; S Peralta; F D'Arpa; A Giammanco
Journal:  Eur J Clin Microbiol Infect Dis       Date:  2008-10-29       Impact factor: 3.267

7.  Gastric transcription profile of Helicobacter pylori infection in the rhesus macaque.

Authors:  Jennifer L Huff; Lori M Hansen; Jay V Solnick
Journal:  Infect Immun       Date:  2004-09       Impact factor: 3.441

8.  Frequency of Helicobacter pylori and CagA antibody in patients with gastric neoplasms and controls: the Indian enigma.

Authors:  Uday C Ghoshal; Shridhar Tiwari; Sadhna Dhingra; Rakesh Pandey; Ujjala Ghoshal; Shweta Tripathi; Himani Singh; V K Gupta; A K Nagpal; Sita Naik; Archana Ayyagari
Journal:  Dig Dis Sci       Date:  2008-03-20       Impact factor: 3.199

9.  Distribution of Helicobacter pylori cagA, cagE, oipA and vacA in different major ethnic groups in Tehran, Iran.

Authors:  Hossein Dabiri; Parviz Maleknejad; Yoshio Yamaoka; Mohammad M Feizabadi; Fereshteh Jafari; Maryam Rezadehbashi; Farrokh A Nakhjavani; Akbar Mirsalehian; Mohammad R Zali
Journal:  J Gastroenterol Hepatol       Date:  2009-08       Impact factor: 4.029

10.  Indistinguishable cellular changes in gastric mucosa between Helicobacter pylori infected asymptomatic tribal and duodenal ulcer patients.

Authors:  Dhira Rani Saha; Simanti Datta; Santanu Chattopadhyay; Rajashree Patra; Ronita De; Krishnan Rajendran; Abhijit Chowdhury; Thandavaryan Ramamurthy; Asish Kumar Mukhopadhyay
Journal:  World J Gastroenterol       Date:  2009-03-07       Impact factor: 5.742
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