Huang JW, Xie C, Niu Z, He LJ, Li JJ. The relation between Helicobacter pylori immunoglobulin G seropositivity and leukocyte telomere length in US adults from NHANES 1999-2000.
Helicobacter 2020;
25:e12760. [PMID:
33002310 DOI:
10.1111/hel.12760]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/31/2020] [Accepted: 09/04/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND
Helicobacter pylori (H pylori) immunoglobulin G (IgG) seropositivity is prevalent but its relation with leukocyte telomere length (LTL), a cellular aging biomarker, is unclear.
METHODS
Among 3,472 participants from the National Health and Nutrition Examination Survey (NHANES) cycle 1999-2000, LTL was measured with the quantitative polymerase chain reaction. H pylori IgG was measured by enzyme-linked immunosorbent assays and defined as seropositivity with an immune status ratio score > 0.9. We used linear regression models to examine the relation of H pylori IgG seropositivity with continuous LTL and logistic regression for the relation with short LTL (<10th percentile of the population distribution) adjusting for potential confounders. We stratified the analyses by a priori selected variables.
RESULTS
Population prevalence of H pylori IgG seropositivity was 31.5% in the overall population with higher prevalence found in those with older age, other races than non-Hispanic whites, lower education, and being born out of the United States. Continuous LTL was non-significantly shorter in those with H Pylori IgG seropositivity versus seronegativity (mean difference = -40.3 bp, 95% CI: -112.4, 31.9). This difference was not significant after adjusting for potential confounders nor stratifying by potential effect modifiers. H Pylori IgG seropositivity was significantly associated with short LTL among the elderly (55-75 years, adjusted OR: 3.06, 95% CI: 1.17, 7.99), but not in the overall population (OR: 1.28, 95% CI: 0.81-2.02).
CONCLUSION
H Pylori IgG seropositivity was not associated with continuous LTL in the general population but may be associated with an excessively short LTL in the elderly.
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