Helicobacter pylori cagA, vacA and iceA genotypes in northern Thai patients with gastric disease.
Southeast Asian J Trop Med Public Health
;
2007 Mar; 38(2): 356-62
Artigo
em Inglês
| IMSEAR
| ID: sea-32478
ABSTRACT
Helicobacterpylori, a common infectious bacterium, has been linked to chronic gastritis, peptic ulcer and gastric cancer. Gastric biopsy specimens were obtained from 58 northern Thai patients with gastritis, 28 with gastric ulcer, 45 with duodenal ulcer and 4 with gastric cancer. cagA, vacA s1 and iceA gene was found in 88, 98, and 89% of the specimens, respectively. For vacA, the frequency of subtype s1a, s1c and combined sla and s1c was 40, 16, and 41%, respectively. The frequency of subtype s1a/m1 and s1a/s1c/m1 was 27 and 20%, respectively. Fifty-three patients (39%) were infected with multiple vacA genotypes but there was no association with clinical outcome. cagA positive and mixed vacA s1a and s1c strains were found in significantly more cases of duodenal ulcer than gastritis (p < 0.05). For iceA, subtype iceA1 reached a frequency of 60%, whereas subtype iceA2 was only 24%.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Tailândia
/
Proteínas da Membrana Bacteriana Externa
/
Proteínas de Bactérias
/
Virulência
/
Humanos
/
Reação em Cadeia da Polimerase
/
Fatores de Risco
/
Helicobacter pylori
/
Infecções por Helicobacter
/
Gastroenteropatias
Tipo de estudo:
Estudo de etiologia
/
Fatores de risco
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Southeast Asian J Trop Med Public Health
Ano de publicação:
2007
Tipo de documento:
Artigo
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