[Relationship between Helicobacter pylori infection other factors and diffuse-and intestinal type stomach carcinomas].
To investigate the role of Helicobacter Pylori (HP) infection and other factors in the development of stomach carcinoma, a matched case-control study was conducted in Dalian, China. A total number of 95 paired cases and controls were involved in the study. The cases were divided into two histological types: diffuse- and intestinal-type. IgG antibody of HP in the subjects was tested with ELISA method. The results revealed that the prevalences of HP infection in cases and in controls were 77.5% and 50.0%, respectively, and that the matched OR was 5.0 (2.08-12.01). The stratified analysis showed that the risk effect of HP in intestinal-type was more significant (OR = 5.75, 1.99-16.63) than it in defuse-type (OR = 3.5, 0.73-16.89). Cancer history within family and blood group A were associated with diffuse-type while the environmental factors such as low economic status, irregular eating and fast-eating habits were mainly associated with intestinal-type. We conclude from our findings that HP infection may play a role in the development of stomach cancer, especially for intestinal-type gastric cancer. The two Lauren's histological types of stomach cancer might be different in terms of pathogenesis and characteristics.
Li
D G
DG
Dalian Medical University.
Gao
X H
XH
Guan
H W
HW
D000017:ABO Blood-Group System; D000907:Antibodies, Bacterial / Q000097:blood*; D016022:Case-Control Studies; D005260:Female; D016481:Helicobacter Infections; D016480:Helicobacter pylori; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D013274:Stomach Neoplasms / Q000382:microbiology* / Q000473:pathology
D000017:ABO Blood-Group System; D000907:Antibodies, Bacterial; D007074:Immunoglobulin G