Canine Chronic Enteropathy in Dogs and Risk Factors Determine the Disease

Abstract

Canine chronic enteropathy (CE) is a complex gastrointestinal disease that presents with persistent or recurrent signs of diarrhea, vomiting, inappetence and weight loss for greater than three weeks. The etiology is not fully elucidated and involves complex interactions between genetic predisposition, immune system dysregulation, environmental factors, the gut microbiome and compromised epithelial barriers. Genetic polymorphisms of immune-related genes, notably TLR4, TLR5, and NOD2, might be involved in atypical host-microbiota interactions and sustained intestinal inflammation. Infections in early life and previous gastrointestinal problems may also contribute to the susceptibility of disease. Intestinal dysbiosis, alterations in intestinal microbial metabolites, bile acid imbalances, and reduced synthesis of short-chain fatty acids can lead to disruption of intestinal homeostasis and mucosal integrity. Diagnosis is clinical and based on exclusion of other causes of gastrointestinal disease and clinical observations, laboratory findings and response to treatment. CE are classified into food-responsive, antibiotic-responsive, immunosuppressant-responsive and non-responsive enteropathies according to their response to therapy. Hypoalbuminemia, hypocobalaminemia and vitamin D insufficiency may be important prognostic information. The Canine Inflammatory Bowel Disease Activity Index and Canine Chronic Enteropathy Clinical Activity Index are useful for the assessment of disease severity. Effective disease management requires an individualized and comprehensive diagnosis and treatment plan. Further research into genetic predisposition, microbiome changes, and disease markers may improve diagnostic accuracy and long-term health outcomes in dogs with this condition.