Among the more common side effects of osteoarthritis treatment are NSAID-gastropathy and NSAID-enteropathy. NSAIDs can cause direct injury to colon tissue and also impair synthesis of prostaglandins, reduce mucosal integrity, increase permeability and promote an influx of bacteria and toxins. Alterations in gastrointestinal permeability are considered as an initial step in the development of lesions of the gastric mucosa such as erosions and ulcers. The mechanisms underlying the ability of NSAIDs to cause ulceration in the stomach and proximal duodenum are well understood and this injury can be largely be prevented through suppression of gastric acid secretion. However, our work showed that 28-day administration of the anti-secretory preparation pantoprazole (20 mg 2 times per day) resulted in a statistically significant increase of dysbiosis. Monitoring of patients with osteoarthritis who used NSAIDs for more than three months showed that, in comparison to the situation before the beginning of treatment, changes in colonic microbiota were present. Multiprobiotic “Symbiter® acidophilic concentrated” introduced simultaneously with pantoprazole during 20 days prevented formation of dysbiotic changes and led to the quicker healing of gastric mucous healing, in comparison with patients who used only pantoprazole alone. Moreover, it brought about total healing of the gastric mucosa within 4 weeks from the beginning of treatment.
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