Adzuki bean extracts have shown more potential than black soybean extracts in lowering blood pressure in hypertensive rats, acting on the renin-angiotensin system.
The methodology used in this research involved the administration of varying volumes of black soybean and adzuki bean ethanol extracts to seven groups of rats, which included one group of normal rats and six groups of spontaneously hypertensive rats. The purpose of the extracts was to explore their antihypertensive effects on aspects such as blood pressure, the renin-angiotensin system, and aortic lesions.
The results revealed that black soybean and adzuki bean extracts significantly reduced various biomarkers such as liver weight, triglycerides, total cholesterol, and systolic blood pressure. On a comparative basis, the adzuki bean extracts (AE) demonstrated a greater antihypertensive potential than black soybean extracts (BE). Specifically, the angiotensin II level and blood pressure in the AE-treated group were lower than those in the BE-treated group, leading to the conclusion that AE exhibits higher antihypertensive potential.