Published in Proc Assoc Am Physicians on January 25, 1999
Pathogenesis of Helicobacter pylori infection. Clin Microbiol Rev (2006) 7.72
Relationship between Helicobacter pylori iceA, cagA, and vacA status and clinical outcome: studies in four different countries. J Clin Microbiol (1999) 4.13
Helicobacter pylori genetic diversity within the gastric niche of a single human host. Proc Natl Acad Sci U S A (2001) 4.05
Distinctiveness of genotypes of Helicobacter pylori in Calcutta, India. J Bacteriol (2000) 2.81
Helicobacter pylori strain-specific differences in genetic content, identified by microarray, influence host inflammatory responses. J Clin Invest (2001) 2.70
Helicobacter pylori genetic diversity and risk of human disease. J Clin Invest (2001) 2.58
pH-regulated gene expression of the gastric pathogen Helicobacter pylori. Infect Immun (2003) 2.41
Identification of type II restriction and modification systems in Helicobacter pylori reveals their substantial diversity among strains. Proc Natl Acad Sci U S A (2000) 1.98
Comparative genomics of the restriction-modification systems in Helicobacter pylori. Proc Natl Acad Sci U S A (2001) 1.87
Cellular and molecular aspects of gastric cancer. World J Gastroenterol (2006) 1.84
Role of innate immunity in Helicobacter pylori-induced gastric malignancy. Physiol Rev (2010) 1.73
Relation between clinical presentation, Helicobacter pylori density, interleukin 1beta and 8 production, and cagA status. Gut (1999) 1.72
Murine splenocytes induce severe gastritis and delayed-type hypersensitivity and suppress bacterial colonization in Helicobacter pylori-infected SCID mice. Infect Immun (1999) 1.56
Helicobacter pylori genotypes may determine gastric histopathology. Am J Pathol (2001) 1.51
Iron and pH homeostasis intersect at the level of Fur regulation in the gastric pathogen Helicobacter pylori. Infect Immun (2006) 1.48
HP0333, a member of the dprA family, is involved in natural transformation in Helicobacter pylori. J Bacteriol (1999) 1.46
Heterogeneity among Helicobacter pylori strains in expression of the outer membrane protein BabA. Infect Immun (2004) 1.45
Diverse functions of restriction-modification systems in addition to cellular defense. Microbiol Mol Biol Rev (2013) 1.32
Evaluation of the association of nine Helicobacter pylori virulence factors with strains involved in low-grade gastric mucosa-associated lymphoid tissue lymphoma. Infect Immun (2004) 1.30
Two different families of hopQ alleles in Helicobacter pylori. J Clin Microbiol (2002) 1.25
Bacterial biota in reflux esophagitis and Barrett's esophagus. World J Gastroenterol (2005) 1.24
Consensus and variable region PCR analysis of Helicobacter pylori 3' region of cagA gene in isolates from individuals with or without peptic ulcer. J Clin Microbiol (2001) 1.22
DNA-level characterization of Helicobacter pylori strains from patients with overt disease and with benign infections in Bangladesh. J Clin Microbiol (2003) 1.18
Prevalence of Helicobacter pylori vacA, cagA, iceA and oipA genotypes in Tunisian patients. Ann Clin Microbiol Antimicrob (2010) 1.17
The significance of virulence factors in Helicobacter pylori. J Dig Dis (2013) 1.16
Global analysis of Helicobacter pylori gene expression in human gastric mucosa. Gastroenterology (2002) 1.14
The Helicobacter pylori HpyAXII restriction-modification system limits exogenous DNA uptake by targeting GTAC sites but shows asymmetric conservation of the DNA methyltransferase and restriction endonuclease components. Nucleic Acids Res (2008) 1.12
Specificities of eleven different DNA methyltransferases of Helicobacter pylori strain 26695. J Bacteriol (2001) 1.07
Differences in genome content among Helicobacter pylori isolates from patients with gastritis, duodenal ulcer, or gastric cancer reveal novel disease-associated genes. Infect Immun (2009) 1.07
Helicobacter pylori genotyping in gastric adenocarcinoma and MALT lymphoma by multiplex PCR analyses of paraffin wax embedded tissues. Mol Pathol (2003) 1.07
The efficacy of laboratory diagnosis of Helicobacter pylori infections in gastric biopsy specimens is related to bacterial density and vacA, cagA, and iceA genotypes. J Clin Microbiol (2000) 1.05
Expression of putative virulence factors of Escherichia coli O157:H7 differs in bovine and human infections. Infect Immun (2006) 1.04
Sequence analysis and clinical significance of the iceA gene from Helicobacter pylori strains in Japan. J Clin Microbiol (2000) 1.03
Helicobacter pylori infection and gastroduodenal diseases in Vietnam: a cross-sectional, hospital-based study. BMC Gastroenterol (2010) 1.03
Phenotypic and genotypic variation in methylases involved in type II restriction-modification systems in Helicobacter pylori. Nucleic Acids Res (2002) 1.02
Virulence genes and neutral DNA markers of Helicobacter pylori isolates from different ethnic communities of West Bengal, India. J Clin Microbiol (2003) 1.02
Host cell responses to genotypically similar Helicobacter pylori isolates from United States and Japan. Clin Diagn Lab Immunol (2002) 1.02
Analysis of iceA1 transcription in Helicobacter pylori. Helicobacter (2000) 1.00
Helicobacter pylori homB, but not cagA, is associated with gastric cancer in Iran. J Clin Microbiol (2011) 0.99
iceA genotypes of Helicobacter pylori strains isolated from Brazilian children and adults. J Clin Microbiol (2001) 0.99
Promoters of the CATG-specific methyltransferase gene hpyIM differ between iceA1 and iceA2 Helicobacter pylori strains. J Bacteriol (2001) 0.99
Novel 180- and 480-base-pair insertions in African and African-American strains of Helicobacter pylori. J Clin Microbiol (2004) 0.98
Identification of a genetic marker of Helicobacter pylori strains involved in gastric extranodal marginal zone B cell lymphoma of the MALT-type. Gut (2004) 0.97
H pylori iceA alleles are disease-specific virulence factors. World J Gastroenterol (2007) 0.97
Functional analysis of the M.HpyAIV DNA methyltransferase of Helicobacter pylori. J Bacteriol (2007) 0.95
Virulence Factors of Helicobacter pylori: A Review. Clin Med Insights Gastroenterol (2014) 0.93
Helicobacter pylori infection: host immune response, implications on gene expression and microRNAs. World J Gastroenterol (2014) 0.93
Interleukin 1beta induces gastric epithelial cell matrix metalloproteinase secretion and activation during Helicobacter pylori infection. Gut (2003) 0.92
Quantitative detection of Helicobacter pylori gene expression in vivo and relationship to gastric pathology. Infect Immun (2000) 0.91
Helicobacter pylori iceA, clinical outcomes, and correlation with cagA: a meta-analysis. PLoS One (2012) 0.91
The enigma of Helicobacter pylori infection and gastric cancer. Indian J Gastroenterol (2010) 0.90
H. pylori infection and genotyping in patients undergoing upper endoscopy at inner city hospitals. Dig Dis Sci (2002) 0.88
Functional analysis of iceA1, a CATG-recognizing restriction endonuclease gene in Helicobacter pylori. Nucleic Acids Res (2002) 0.87
Analysis of iceA genotypes in South African Helicobacter pylori strains and relationship to clinically significant disease. Gut (2001) 0.86
Clinical Relevance of the vacA, iceA, cagA, and flaA genes of Helicobacter pylori strains isolated in Eastern Taiwan. J Clin Microbiol (2005) 0.86
Mucosal IgA & IL-1β in Helicobacter pylori Infection. Indian J Clin Biochem (2012) 0.85
Pathogenesis of Helicobacter pylori infection. Springer Semin Immunopathol (2005) 0.85
Prevalence of Helicobacter pylori vacA, cagA and iceA genotypes and correlation with clinical outcome. Exp Ther Med (2012) 0.85
Helicobacter pylori lipopolysaccharides preferentially induce CXC chemokine production in human monocytes. Infect Immun (2001) 0.84
The Helicobacter pylori restriction endonuclease-replacing gene, hrgA, and clinical outcome: comparison of East Asia and Western countries. Dig Dis Sci (2004) 0.84
Distribution of Helicobacter pylori in north China. World J Gastroenterol (2005) 0.83
VacA, cagA, iceA and oipA genotypes status and antimicrobial resistance properties of Helicobacter pylori isolated from various types of ready to eat foods. Ann Clin Microbiol Antimicrob (2016) 0.81
Helicobacter pylori virulence genes and host genetic polymorphisms as risk factors for peptic ulcer disease. Expert Rev Gastroenterol Hepatol (2015) 0.81
Molecular analysis of Helicobacter pylori virulent-associated genes in hepatobiliary patients. HPB (Oxford) (2012) 0.81
Chemokines and antimicrobial peptides have a cag-dependent early response to Helicobacter pylori infection in primary human gastric epithelial cells. Infect Immun (2014) 0.80
Prevalence of Helicobacter pylori virulence genotypes among children in Eastern Turkey. World J Gastroenterol (2013) 0.79
Effect of Helicobacter pylori cdrA on interleukin-8 secretions and nuclear factor kappa B activation. World J Gastroenterol (2012) 0.79
Evaluation of Helicobacter pylori vacA and cagA Genotypes and Correlation With Clinical Outcome in Patients With Dyspepsia in Hamadan Province, Iran. Iran Red Crescent Med J (2014) 0.79
Helicobacter pylori in bottled mineral water: genotyping and antimicrobial resistance properties. BMC Microbiol (2016) 0.79
What exists beyond cagA and vacA? Helicobacter pylori genes in gastric diseases. World J Gastroenterol (2015) 0.78
Prevalence of genotypes in Helicobacter pyloriisolates from patients in eastern Turkey and the association of these genotypes with clinical outcome. Braz J Microbiol (2012) 0.78
Helicobacter pylori virulence genes in the five largest islands of Indonesia. Gut Pathog (2015) 0.77
Molecular Basis of pathogenicity in Helicobacter pylori clinical isolates. J Clin Microbiol (2010) 0.77
Helicobacter pylori isolated from Iranian drinking water: vacA, cagA, iceA, oipA and babA2 genotype status and antimicrobial resistance properties. FEBS Open Bio (2016) 0.77
Divergence between the Highly Virulent Zoonotic Pathogen Helicobacter heilmannii and Its Closest Relative, the Low-Virulence "Helicobacter ailurogastricus" sp. nov. Infect Immun (2015) 0.75
Multipronged regulatory functions of a novel endonuclease (TieA) from Helicobacter pylori. Nucleic Acids Res (2016) 0.75
Detection and Genotyping of Helicobacter pylori among Gastric ulcer and Cancer Patients from Saudi Arabia. Pak J Med Sci (2017) 0.75
Helicobacter pylori associated Asian enigma: Does diet deserve distinction? World J Gastrointest Oncol (2016) 0.75
Elevated levels of adaption in Helicobacter pylori genomes from Japan; a link to higher incidences of gastric cancer? Evol Med Public Health (2015) 0.75
Prevalence of Specific Helicobacter PyloricagA, vacA, iceA, ureC Genotypes and its Clinical Relevance in the Patients with Acid-Peptic Diseases. J Clin Diagn Res (2017) 0.75
Campylobacter enteritis: clinical and epidemiologic features. Ann Intern Med (1979) 12.90
Mosaicism in vacuolating cytotoxin alleles of Helicobacter pylori. Association of specific vacA types with cytotoxin production and peptic ulceration. J Biol Chem (1995) 12.61
Helicobacter pylori infection and gastric carcinoma among Japanese Americans in Hawaii. N Engl J Med (1991) 11.98
Helicobacter pylori. Clin Microbiol Rev (1997) 9.22
Campylobacter enteritis. N Engl J Med (1981) 7.98
Cloning and expression of a high-molecular-mass major antigen of Helicobacter pylori: evidence of linkage to cytotoxin production. Infect Immun (1993) 7.75
Gastric Campylobacter-like organisms, gastritis, and peptic ulcer disease. Gastroenterology (1987) 7.27
Epidemiology of Campylobacter jejuni infections. Epidemiol Rev (1983) 7.06
Experimental Campylobacter jejuni infection in humans. J Infect Dis (1988) 7.05
Purification and characterization of the vacuolating toxin from Helicobacter pylori. J Biol Chem (1992) 6.54
Divergence of genetic sequences for the vacuolating cytotoxin among Helicobacter pylori strains. J Biol Chem (1994) 6.09
Helicobacter pylori and atrophic gastritis: importance of the cagA status. J Natl Cancer Inst (1995) 6.07
Survival of Campylobacter fetus subsp. jejuni in biological milieus. J Clin Microbiol (1980) 6.04
Campylobacter pylori antibodies in humans. Ann Intern Med (1988) 6.02
Heightened inflammatory response and cytokine expression in vivo to cagA+ Helicobacter pylori strains. Lab Invest (1995) 6.02
Characterization of and human serologic response to proteins in Helicobacter pylori broth culture supernatants with vacuolizing cytotoxin activity. Infect Immun (1990) 5.85
Prevalence of Helicobacter pylori infection and histologic gastritis in asymptomatic persons. N Engl J Med (1989) 5.78
Clinical and pathological importance of heterogeneity in vacA, the vacuolating cytotoxin gene of Helicobacter pylori. Gastroenterology (1997) 5.24
30 years of campylobacters: biochemical characteristics and a biotyping proposal for Campylobacter jejuni. J Clin Microbiol (1982) 5.19
Intrafamilial clustering of Helicobacter pylori infection. N Engl J Med (1990) 5.09
A CONTRIBUTION TO THE STUDY OF THROMBO-ANGIITIS OBLITERANS. Ann Surg (1925) 4.89
Recombination and clonal groupings within Helicobacter pylori from different geographical regions. Mol Microbiol (1999) 4.72
Campylobacter enteritis in the United States. A multicenter study. Ann Intern Med (1983) 4.60
Accuracy of invasive and noninvasive tests to diagnose Helicobacter pylori infection. Gastroenterology (1995) 4.42
The epidemiology of Helicobacter pylori infection. Epidemiol Rev (1991) 4.40
A review of human salmonellosis: III. Magnitude of Salmonella infection in the United States. Rev Infect Dis (1988) 4.28
Purification and characterization of urease from Helicobacter pylori. J Biol Chem (1990) 4.22
Interleukin-8 response of gastric epithelial cell lines to Helicobacter pylori stimulation in vitro. Infect Immun (1995) 4.19
Helicobacter pylori genetic diversity within the gastric niche of a single human host. Proc Natl Acad Sci U S A (2001) 4.05
Helicobacter pylori picB, a homologue of the Bordetella pertussis toxin secretion protein, is required for induction of IL-8 in gastric epithelial cells. Mol Microbiol (1995) 3.97
Effect of urease on HeLa cell vacuolation induced by Helicobacter pylori cytotoxin. Infect Immun (1991) 3.57
Geographic distribution of vacA allelic types of Helicobacter pylori. Gastroenterology (1999) 3.37
Growth, survival, and resistance of the Legionnaires' disease bacterium. Ann Intern Med (1979) 3.36
Identification and characterization of Campylobacter jejuni outer membrane proteins. Infect Immun (1983) 3.24
Serologic detection of infection with cagA+ Helicobacter pylori strains. J Clin Microbiol (1995) 3.23
An inverse relation between cagA+ strains of Helicobacter pylori infection and risk of esophageal and gastric cardia adenocarcinoma. Cancer Res (1998) 3.22
Gonococcal transferrin-binding protein 1 is required for transferrin utilization and is homologous to TonB-dependent outer membrane receptors. J Bacteriol (1992) 3.21
Helicobacter pylori infection and the risk for duodenal and gastric ulceration. Ann Intern Med (1994) 3.19
Isolation of Campylobacter fetus subsp. jejuni from migratory waterfowl. J Clin Microbiol (1980) 3.11
Surface proteins from Helicobacter pylori exhibit chemotactic activity for human leukocytes and are present in gastric mucosa. J Exp Med (1992) 3.03
Soluble surface proteins from Helicobacter pylori activate monocytes/macrophages by lipopolysaccharide-independent mechanism. J Clin Invest (1991) 3.00
Helicobacter pylori and gastric acid: biological and therapeutic implications. Gastroenterology (1996) 2.96
Epithelial attachment alters the outcome of Helicobacter pylori infection. Proc Natl Acad Sci U S A (1998) 2.96
Helicobacter pylori cagA+ strains and dissociation of gastric epithelial cell proliferation from apoptosis. J Natl Cancer Inst (1997) 2.95
Isolation of Campylobacter fetus subsp. jejuni from Bangladeshi children. J Clin Microbiol (1980) 2.92
A review of human salmonellosis: I. Infective dose. Rev Infect Dis (1983) 2.91
Reservoirs for human campylobacteriosis. J Infect Dis (1980) 2.87
Detection of Listeria monocytogenes by using the polymerase chain reaction. Appl Environ Microbiol (1990) 2.84
Conservation and diversity of Campylobacter pyloridis major antigens. Infect Immun (1987) 2.82
Helicobacter pylori and gastroduodenal disease. Annu Rev Med (1992) 2.75
Expanding allelic diversity of Helicobacter pylori vacA. J Clin Microbiol (1998) 2.73
Infant antibiotic exposures and early-life body mass. Int J Obes (Lond) (2012) 2.72
Susceptibility of Campylobacter isolates to the bactericidal activity of human serum. J Infect Dis (1985) 2.71
Seroprevalence of Helicobacter pylori infections in Thailand. J Infect Dis (1990) 2.71
Helicobacter pylori strain-specific differences in genetic content, identified by microarray, influence host inflammatory responses. J Clin Invest (2001) 2.70
Activation of IL-8 gene expression by Helicobacter pylori is regulated by transcription factor nuclear factor-kappa B in gastric epithelial cells. J Immunol (1998) 2.65
Symptoms and risk factors of Helicobacter pylori infection in a cohort of epidemiologists. Gastroenterology (1992) 2.65
Guillain-Barré syndrome in northern China. Relationship to Campylobacter jejuni infection and anti-glycolipid antibodies. Brain (1995) 2.61
Helicobacter pylori infection in pernicious anemia: a prospective controlled study. Gastroenterology (1991) 2.57
Interlaboratory comparison of cytomegalovirus viral load assays. Am J Transplant (2009) 2.57
Iron-cofactored superoxide dismutase inhibits host responses to Mycobacterium tuberculosis. Am J Respir Crit Care Med (2001) 2.46
Heterogeneity in the Helicobacter pylori vacA and cagA genes: association with gastroduodenal disease in South Africa? Gut (1999) 2.43
Quasispecies development of Helicobacter pylori observed in paired isolates obtained years apart from the same host. J Infect Dis (2000) 2.42
Human serum antibody response to Campylobacter jejuni infection as measured in an enzyme-linked immunosorbent assay. Infect Immun (1984) 2.41
Attenuation control of pyrBI operon expression in Escherichia coli K-12. Proc Natl Acad Sci U S A (1983) 2.39
Mutation of the cytotoxin-associated cagA gene does not affect the vacuolating cytotoxin activity of Helicobacter pylori. Infect Immun (1994) 2.37
Gastric adenocarcinoma and Helicobacter pylori infection. J Natl Cancer Inst (1991) 2.35
Helicobacter pylori seropositivity as a risk factor for pancreatic cancer. J Natl Cancer Inst (2001) 2.32
Rapid identification of Candida albicans septicemia in man by gas-liquid chromatography. J Clin Invest (1974) 2.29
Density of Helicobacter pylori infection in vivo as assessed by quantitative culture and histology. J Infect Dis (1996) 2.24
Lipopolysaccharide characteristics of pathogenic campylobacters. Infect Immun (1985) 2.23
Campylobacter enteritis associated with unpasteurized milk. Am J Med (1979) 2.19
Disasters following the Operation of Ligation and Retrograde Injection of Varicose Veins. Ann Surg (1948) 2.18
Campylobacter enteritis from untreated water in the Rocky Mountains. Ann Intern Med (1983) 2.17
An outbreak of waterborne giardiasis associated with heavy water runoff due to warm weather and volcanic ashfall. Am J Public Health (1983) 2.16
Role of infection due to Campylobacter jejuni in the initiation of Guillain-Barré syndrome. Clin Infect Dis (1993) 2.15
MICROBIOME. A unified initiative to harness Earth's microbiomes. Science (2015) 2.15
The seroprevalence of cagA-positive Helicobacter pylori strains in the spectrum of gastroesophageal reflux disease. Gastroenterology (1998) 2.14
Cellular fatty acid composition of Campylobacter fetus. J Clin Microbiol (1980) 2.14
Mutation in the peb1A locus of Campylobacter jejuni reduces interactions with epithelial cells and intestinal colonization of mice. Infect Immun (1998) 2.14
Pathophysiology of Campylobacter jejuni infections of humans. Microbes Infect (1999) 2.10
Evaluation of transport and storage techniques for isolation of Campylobacter fetus subsp. jejuni from turkey cecal specimens. J Clin Microbiol (1981) 2.06
A review of human salmonellosis: II. Duration of excretion following infection with nontyphi Salmonella. Rev Infect Dis (1984) 2.04
From the centers for disease control. Salmonella bacteremia: reports to the Centers for Disease Control, 1968-1979. J Infect Dis (1981) 2.04
Extraintestinal Campylobacter jejuni and Campylobacter coli infections: host factors and strain characteristics. J Infect Dis (1986) 2.04
IL-10 gene expression is controlled by the transcription factors Sp1 and Sp3. J Immunol (2000) 2.04
Interlaboratory comparison of epstein-barr virus viral load assays. Am J Transplant (2009) 2.04