Probiotic strains show potential to manage canine and feline inflammatory bowel disease
A rat study reveals Bacillus coagulans and Lactobacillus acidophilus may reduce gut inflammation and inflammasome activity, offering a promising, less invasive adjunct therapy for chronic IBD in dogs and cats, pending further clinical trials in veterinary practice.
A rat study has found that two probiotic strains, Bacillus coagulans and Lactobacillus acidophilus, eased acetic acid-induced ulcerative colitis and reduced activity in key inflammasome pathways. The results matter because inflammatory bowel disease remains difficult to manage in dogs and cats, where current treatment still relies heavily on diet change, antibiotics and immunosuppressants. If the findings translate beyond rodents, they could widen the case for cheaper, more durable adjunct therapies in veterinary gastroenterology.
The study, published in Veterinary Medicine and Science, compared the two probiotics with mesalazine in 40 male Wistar rats. According to the authors, both strains improved colon morphology, reduced macroscopic and histological injury, and lowered inflammatory markers including IL-1β and IL-17.
They also dampened expression of NLRP3, caspase-1, IL-18 and TNF-α, pointing to suppression of the inflammasome cascade that is increasingly linked to chronic gut inflammation. That is relevant to small-animal practice: Cornell’s veterinary centres describe inflammatory bowel disease in dogs and cats as a chronic disorder driven by a mixture of immune dysfunction, dysbiosis and diet, with signs including diarrhoea, weight loss and vomiting.
The appeal of probiotic strategies is practical as well as biological. Unlike corticosteroids and other immunosuppressants, they may offer a safer long-term option, though the new data remain preclinical and must still be tested in clinical veterinary populations.
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