PT  - JOURNAL ARTICLE
AU  - Fan, X G
AU  - Chua, A
AU  - Fan, X J
AU  - Keeling, P W
TI  - Increased gastric production of interleukin-8 and tumour necrosis factor in patients with Helicobacter pylori infection.
AID  - 10.1136/jcp.48.2.133
DP  - 1995 Feb 01
TA  - Journal of Clinical Pathology
PG  - 133--136
VI  - 48
IP  - 2
4099  - http://jcp.bmj.com/content/48/2/133.short
4100  - http://jcp.bmj.com/content/48/2/133.full
SO  - J Clin Pathol1995 Feb 01; 48
AB  - AIMS--To investigate the role of interleukin-8 (IL-8) and tumour necrosis factor (TNF) in patients infected with Helicobacter pylori. METHODS--The study population comprised 52 patients with dyspepsia attending for upper gastrointestinal endoscopy. Of these patients, 35 were infected with H pylori. IL-8 and TNF concentrations in plasma, gastric juice, and gastric biopsy homogenate supernatant fluid were measured by radioimmunoassay and L929 cell bioassay, respectively. RESULTS--The concentrations of IL-8 and TNF in gastric juice and gastric biopsy homogenates were substantially greater in patients infected with H pylori. In H pylori positive patients IL-8 concentrations in gastric juice and gastric biopsy homogenates were higher in those with moderate gastritis than in those with mild gastritis. There was a positive correlation between IL-8 and TNF concentrations in gastric juice and gastric biopsy homogenate supernatant fluid from H pylori positive patients. There were no significant differences between H pylori positive and negative patients with respect to IL-8 and TNF plasma concentrations. CONCLUSION--This study suggests that increased gastric production of IL-8 and TNF may be implicated in the pathogenesis of H pylori associated gastroduodenal disease.