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Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) ›› 2024, Vol. 18 ›› Issue (04): 237-244. doi: 10.3877/cma.j.issn.1674-1358.2024.04.007

• Research Articles • Previous Articles     Next Articles

Relationship between Helicobacter pylori infection with different antibody types and disease activity and histological scores in patients with ulcerative colitis

Weiyi Guo1, Peiling Lin1,()   

  1. 1.Gastroenterology Department, Dongguan People’s Hospital, Dongguan 523000, China
  • Received:2024-03-03 Online:2024-08-08 Published:2024-11-01
  • Contact: Peiling Lin

Abstract:

Objective

To investigate the relationship between Helicobacter pylori (Hp) infection of different antibody types and disease activity and histological scores of ulcerative colitis (UC) patients.

Methods

Total of 285 patients with UC admitted to Dongguan People’s Hospital from October 2019 to January 2023 were selected, with an average age of (41.09 ± 9.37) years old, among whom, 141 cases were male and 144 cases were female. The relationship between serological antibodies to Hp infection and pathological characteristics of UC patients was analyzed, and the patients were divided into type ⅠHp infection group (211 cases) and type Ⅱ Hp infection group (74 cases) according to the results of Hp antibody-type. The distribution of general data, clinical indicators, disease activity and histological scores of the two groups were compared, while DAI scores and histological scores of UC patients in both groups were compared, respctively. The risk factors for severe disease activity in UC patients were analyzed by multivariate Logistic regression.

Results

The disease activity (χ2 = 13.160, P = 0.041) and histological scores(χ2 = 21.263, P = 0.033) among Hp patients with different antibody types were significantly different. The positive rate of CagA antibody was higher in patients with severe disease activity and histological scores of 4 (76.27%) and 5 (75.76%). Among patients with UC infected by anti-CagA, anti- VacA, anti-UreA and anti-UreB Hp, levels of IL-6 (F = 14.372, P < 0.001), IL-1β (F = 3.476, P = 0.022), TNF-α (F = 23.785, P < 0.001) and hs-CRP (F = 12.174, P < 0.001) were significantly different. The disease activity (χ2 = 9.650, P = 0.008) and histological scores (χ2 = 14.263, P = 0.002) between type Ⅰ Hp infection group and type Ⅱ Hp infection group were significantly different. The levels of IL-6 (t = 2.183, P = 0.030), IL-1β (t = 2.032, P = 0.043), TNF-α (t =3.167, P = 0.002) and hs-CRP (t = 7.820, P < 0.001) in type Ⅰ Hp infection group were significantly higher than those in type Ⅱ Hp infection group, with significant differences. With the aggravation of disease activity and increasing histological score, the proportion of type Ⅰ Hp infection increased and the proportion of typeⅡ Hp infection decreased. Mann-Whitney U test analysis showed that DAI score (Z = 6.527, P < 0.001) and histological score (Z = 4.231, P < 0.001) of type Ⅰ Hp infected patients were significantly higher than those of type Ⅱ Hp infected patients. Multivariate Logistic regression analysis showed that type Ⅰ Hp infection (OR =3.284, 95%CI: 1.429-5.124, P < 0.001), histological score (OR = 2.168, 95%CI: 1.537-2.734, P < 0.001), IL-6(OR = 1.826, 95%CI: 1.351-2.423, P = 0.008) and hs-CRP (OR = 2.037, 95%CI: 1.283-1.683, P < 0.001) were all independent risk factors for severe disease activity of patients with UC. The structural equation model was used to verify the Logistic regression analysis results, and the RMSEA value was 0.017, suggesting a good fit of the model.

Conclusions

With the increase of disease activity and histological score, the proportion of typeⅠ Hp infected patients increased. Type Ⅰ Hp infection, histological score, IL-6 and hs-CRP levels were all independent risk factors for severe disease activity of patients with UC.

Key words: Helicobacter pylori, ntibody type, Ulcerative colitis, Disease activity, Histological score

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