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. 2024 Mar 12;24(1):305.
doi: 10.1186/s12879-024-09196-1.

H. pylori infection and osteoporosis: a large-scale observational and mendelian randomization study

Ling Zhang #  1 , Daya Zhang #  2 , Ling Wei #  3   4 , Yan Zhou  5 , Ximei Li  5 , Runxiang Chen  2 , Xiaodong Zhang  2 , Shiju Chen  2 , Feihu Bai  6   7
Affiliations

H. pylori infection and osteoporosis: a large-scale observational and mendelian randomization study

Ling Zhang et al. BMC Infect Dis. .

Abstract

Purpose: There is controversy concerning the relationship between Helicobacter pylori (H. pylori) infection and osteoporosis. This study is to examine the causal relationship between H. pylori infection and osteoporosis and to analyze the potential mechanism underlying the relationship.

Methods: The clinical data of H. pylori infection and bone mineral density from patients or physical examiner with good general condition in our hospital between September 2019 and September 2020 were retrospectively collected. The relationship between H. pylori infection and osteoporosis was compared and analyzed, using logistic regression to examine the potential mechanism underlying the association. To investigate the causal effects of H. pylori infection and osteoporosis, we conducted a two-sample bidirectional Mendelian randomization (MR) analysis.

Results: A total of 470 patients were positive for H. pylori, with a detection rate of 52.22%. It was found that age, SBP, FPG, DBP, ALB, LDL-C, hs-CRP, and OC were positively correlated with osteoporosis, while negative correlations were observed with BMI, LYM, ALB, TP, TG, HDL-C, SCr, UA, and VitD. After stratified analysis of sex and age, it was found that there was a significant correlation between H. pylori infection and osteoporosis. The levels of SBP, ALP, FPG, LDL-C, hs-CRP, and OC in both H. pylori-positive group and osteoporosis group were higher than those in the H. pylori-negative group while the levels of BMI, ALB, TP, HDL-C, SCr, UA, and VitD in the positive group were significantly lower than those in the negative group. Logistic regression analyses with gender and age showed that ALB, FPG, HDL-C, and VitD were common risk factors for osteoporosis and H. pylori infection. In the MR analysis, the IVW results found a positive effect of H. pylori infection on osteoporosis (OR = 1.0017, 95% CI: 1.0002-1.0033, P = 0.0217). Regarding the reverse direction analysis, there was insufficient evidence to prove the causal effects of osteoporosis on H. pylori infection.

Conclusion: Our study provides evidence for causal effects of H. pylori infection on osteoporosis. H. pylori may affect osteoporosis through serum albumin, high-density lipoprotein, fasting blood glucose and vitamin D.

Keywords: Helicobacter pylori; Fasting blood glucose; High-density lipoprotein; Mendelian randomization; Osteoporosis; Serum albumin; Vitamin D.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
The causal effects of H. pylori infection on osteoporosis in different MR methods
See this image and copyright information in PMC

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