Helicobacter pylori Seropositivity in Patients with Interleukin-1 Polymorphisms Is Significantly Associated with ST-Segment Elevation Myocardial Infarction.

Abstract

BACKGROUND:

Helicobacter pylori infection and interleukin-1 polymorphisms are associated with an increased risk of gastric cancer. We examined the prevalence of Helicobacter pylori seropositivity and interleukin-1 polymorphisms between ST-segment elevation myocardial infarction and non-ST-segment elevation acute coronary syndrome patients.

METHODS:

We recruited consecutive acute coronary syndrome patients, and 101 non-ST-segment elevation acute coronary syndrome patients and 103 ST-segment elevation myocardial infarction patients were enrolled. Interleukin-1 polymorphism analyses were performed for single nucleotide polymorphism in interleukin-1 beta-511 and the variable number of tandem repeats polymorphism in the interleukin-1 receptor antagonist by polymerase chain reaction. Immunoglobulin G antibodies against Helicobacter pylori and high sensitivity C-reactive protein were also measured.

RESULTS:

The rates of the simultaneous presence of interleukin-1 polymorphisms and Helicobacter pylori-seropositivity between non-ST-segment elevation acute coronary syndrome and ST-segment elevation myocardial infarction groups were 25.7% and 42.7%, respectively (P = 0.012). Helicobacter pylori-seropositive subjects with interleukin-1 polymorphisms showed significantly higher levels of high sensitivity C-reactive protein (0.04-0.12 vs. 0.02-0.05; P<0.001). Multivariate logistic regression analysis revealed that the carriage of Helicobacter pylori-seropositivity and interleukin-1 polymorphisms was significantly associated with ST-segment elevation myocardial infarction (odds ratio, 2.32; 95% confidence interval, 1.23-4.37; P = 0.009). The C-statistic of conventional risk factors was 0.68 (P<0.001) and that including Helicobacter pylori-seropositivity and interleukin-1 polymorphisms was 0.70 (P<0.001); continuous net reclassification improvement was 34% (P = 0.0094) and integrated discrimination improvement was 3.0% (P = 0.014).

CONCLUSIONS:

The coincidence of Helicobacter pylori-seropositivity and interleukin-1 polymorphisms was significantly associated with higher levels of high sensitivity C-reactive protein and the increased risk of ST-segment elevation myocardial infarction.

• Authors: Noriaki Tabata, Daisuke Sueta, Tomonori Akasaka, Yuichiro Arima, Kenji Sakamoto, Eiichiro Yamamoto, Yasuhiro Izumiya, Megumi Yamamuro, Kenichi Tsujita, Sunao Kojima, Koichi Kaikita, Kazunori Morita, Kentaro Oniki, Junji Saruwatari, Kazuko Nakagawa, Seiji Hokimoto
• Journal: PloS one (PLoS One) Vol. 11 Issue 11 Pg. e0166240 ( 2016) ISSN: 1932-6203 [Electronic] United States
• PMID: 27832202 (Publication Type: Journal Article)

Chemical References

• Interleukin-1beta
• C-Reactive Protein

Topics

• Acute Coronary Syndrome (complications, genetics, virology)
• Aged
• Aged, 80 and over
• C-Reactive Protein (analysis)
• Female
• Helicobacter Infections (complications)
• Helicobacter pylori (isolation & purification)
• Humans
• Interleukin-1beta (genetics)
• Male
• Middle Aged
• Polymorphism, Genetic
• Risk Factors
• ST Elevation Myocardial Infarction (complications, genetics, virology)