Used in biomedical research to measure endothelin-1 levels in pig samples, aiding studies on cardiovascular function, vascular diseases, and endothelial cell activity. Commonly applied in preclinical research to assess vasoconstriction mechanisms, hypertension models, and organ transplant studies involving pigs. Enables quantitative analysis of ET-1 in plasma, serum, or tissue culture samples, supporting investigation into inflammatory responses and circulatory regulation in porcine models.