Clinical and pathogenetic significance of intestinal permeability markers and low-grade inflammation in patients with symptomatic uncomplicated diverticular disease in the setting of obesity

May 29, 2026
60
УДК:  616.34-007.64-06:616-056.52]-092-074
Resume

Objective: assessment of the impact of comorbid pathology on the level of low-grade inflammation in the long-term post-hospital period in patients with symptomatic uncomplicated diverticular disease of the colon through determination of the clinical and pathogenetic significance of serum zonulin and the IBS-SSS clinical index. Methods. Sixty individuals were examined and allocated to a control group (10 apparently healthy individuals) and two main subgroups of 25 patients each with verified symptomatic uncomplicated diverticular disease — with normal body weight and with concomitant obesity. Serum zonulin concentration was determined and IBS-SSS questionnaire assessment was performed twice in all participants, at admission and after 75 days. Statistical processing was carried out in MedCalc using the Student t-test for paired and unpaired samples and the parametric Pearson correlation analysis; differences at p<0.05 were considered significant. Results. At admission, both main subgroups showed a significant excess over control values (zonulin 22.4±3.1 ng/ml, IBS-SSS 35.2±8.5 points). In the subgroup without obesity, zonulin reached 75.8±8.4 ng/ml and IBS-SSS 215.4±24.6 points, whereas in the presence of obesity higher values were recorded (zonulin 94.5±10.2 ng/ml, IBS-SSS 285.6±31.2 points; p<0.01). After 75 days, parameters normalised in patients without obesity (zonulin 25.1±4.2 ng/ml, IBS-SSS 45.8±12.3 points, p>0.05 versus control), whereas in obesity a significant excess over the norm persisted (zonulin 48.3±6.1 ng/ml, IBS-SSS 112.4±18.5 points; p<0.01). Correlation analysis revealed a very strong direct association between zonulin and IBS-SSS in the obesity subgroup (r=0.91), a strong one without obesity (r=0.74) and a weak one in the control group (r=0.28). Conclusions. Zonulin concentration and the IBS-SSS index objectively reflect the severity of intestinal barrier impairment and low-grade inflammation in symptomatic uncomplicated diverticular disease. Obesity drives persistence of the inflammatory process and incomplete restoration of intestinal wall permeability in the long-term period, which substantiates the appropriateness of personalised, prolonged anti-inflammatory and barrier-protective treatment regimens for this category of patients.

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