Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026
[Small intestinal bacterial overgrowth and inflammatory factor expression levels in patients with asymptomatic hyperuricemia].
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Wen Qianying, Zhang Liqing, Qin Anlin, Li Xiaofeng
Аннотация
OBJECTIVE: To analyze the incidence of small intestinal bacterial overgrowth (SIBO) in patients with asymptomatic hyperuricemia (HUA) and the serum levels of C-reactive protein (CRP), interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in patients with asymptomatic HUA and SIBO.
METHODS: A total of 87 asymptomatic HUA patients and 40 healthy controls from Shanxi Fenyang Hospital from June 2023 to June 2024 were selected as the study subjects, and the baseline data, laboratory indicators were collected. Lactulose methane-hydrogen breath test (LHBT) was used to detect the occurrence of SIBO, and the asymptomatic HUA patients was divided into SIBO-positive group and SIBO-negative group according to the test results of LHBT. The positive rate of SIBO in the asymptomatic HUA patients was analyzed, and the concentrations of H2 and CH4, the levels of CRP, IL-1β, IL-6 and TNF-α at each time point between the asymptomatic HUA patients and the healthy controls were compared, and the levels of CRP, IL-1β, IL-6 and TNF-α were compared between the SIBO-positive group and the SIBO-negative group. Multivariate Logistic regression analysis was performed to analyze the influencing factors of SIBO in asymptomatic HUA. Spearman rank correlation analysis was used to analyze the correlation between CRP, IL-1β, IL-6 and TNF-α levels and SIBO in asymptomatic HUA patients.
RESULTS: The positive rate of SIBO in the asymptomatic HUA patients was 58.62%, which was higher than that in the healthy controls (20.00%), and the difference was statistically significant (χ2=16.431, P < 0.001). There were significant differences in exhaled H2 concentration between the asymptomatic HUA patients and the healthy controls at 0, 30, 60 and 90 min (P < 0.05), and there was no significant difference in exhaled CH4 concentration at each time point (P>0.05). The levels of CRP, IL-1β, IL-6 and TNF-α in the asymptomatic HUA patients were significantly higher than those in the healthy controls (P < 0.05). The serum levels of CRP, IL-1β and IL-6 in the SIBO-positive group were significantly higher than those in the SIBO-negative group (P < 0.05), while the levels of TNF-α were not significantly different between the two groups (P>0.05). Multivariate Logistic regression ana-lysis of the influencing factors of SIBO in the asymptomatic HUA showed that increased IL-1β (OR=1.332, 95%CI: 1.005-1.764, P=0.046) and increased IL-6 (OR=1.586, 95%CI: 1.216-2.069, P=0.001) were independent risk factors for SIBO in the HUA patients. In asymptomatic HUA patients with SIBO, the LHBT set value was positively correlated with serum IL-1β (r=0.594, P < 0.001).
CONCLUSION: Asymptomatic HUA patients are more likely to develop SIBO than healthy people, and SIBO in asymptomatic HUA patients is closely related to the level of inflammatory factors, so attention should be paid to the detection and intervention of SIBO in asymptomatic HUA patients.
METHODS: A total of 87 asymptomatic HUA patients and 40 healthy controls from Shanxi Fenyang Hospital from June 2023 to June 2024 were selected as the study subjects, and the baseline data, laboratory indicators were collected. Lactulose methane-hydrogen breath test (LHBT) was used to detect the occurrence of SIBO, and the asymptomatic HUA patients was divided into SIBO-positive group and SIBO-negative group according to the test results of LHBT. The positive rate of SIBO in the asymptomatic HUA patients was analyzed, and the concentrations of H2 and CH4, the levels of CRP, IL-1β, IL-6 and TNF-α at each time point between the asymptomatic HUA patients and the healthy controls were compared, and the levels of CRP, IL-1β, IL-6 and TNF-α were compared between the SIBO-positive group and the SIBO-negative group. Multivariate Logistic regression analysis was performed to analyze the influencing factors of SIBO in asymptomatic HUA. Spearman rank correlation analysis was used to analyze the correlation between CRP, IL-1β, IL-6 and TNF-α levels and SIBO in asymptomatic HUA patients.
RESULTS: The positive rate of SIBO in the asymptomatic HUA patients was 58.62%, which was higher than that in the healthy controls (20.00%), and the difference was statistically significant (χ2=16.431, P < 0.001). There were significant differences in exhaled H2 concentration between the asymptomatic HUA patients and the healthy controls at 0, 30, 60 and 90 min (P < 0.05), and there was no significant difference in exhaled CH4 concentration at each time point (P>0.05). The levels of CRP, IL-1β, IL-6 and TNF-α in the asymptomatic HUA patients were significantly higher than those in the healthy controls (P < 0.05). The serum levels of CRP, IL-1β and IL-6 in the SIBO-positive group were significantly higher than those in the SIBO-negative group (P < 0.05), while the levels of TNF-α were not significantly different between the two groups (P>0.05). Multivariate Logistic regression ana-lysis of the influencing factors of SIBO in the asymptomatic HUA showed that increased IL-1β (OR=1.332, 95%CI: 1.005-1.764, P=0.046) and increased IL-6 (OR=1.586, 95%CI: 1.216-2.069, P=0.001) were independent risk factors for SIBO in the HUA patients. In asymptomatic HUA patients with SIBO, the LHBT set value was positively correlated with serum IL-1β (r=0.594, P < 0.001).
CONCLUSION: Asymptomatic HUA patients are more likely to develop SIBO than healthy people, and SIBO in asymptomatic HUA patients is closely related to the level of inflammatory factors, so attention should be paid to the detection and intervention of SIBO in asymptomatic HUA patients.