Used in veterinary research to measure endothelial nitric oxide synthase (eNOS) levels in canine blood or tissue samples. Helps assess vascular health and endothelial function in dogs. Commonly applied in studies related to cardiovascular diseases, such as hypertension, heart failure, or atherosclerosis. Supports evaluation of drug effects on the nitric oxide pathway and aids in understanding inflammatory or oxidative stress conditions in canine models. Suitable for academic, diagnostic, and pharmaceutical research settings.