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  • Title: Antihypertensive effect of angiotensin-converting enzyme inhibitory peptide RVPSL on spontaneously hypertensive rats by regulating gene expression of the renin-angiotensin system.
    Author: Yu Z, Yin Y, Zhao W, Chen F, Liu J.
    Journal: J Agric Food Chem; 2014 Jan 29; 62(4):912-7. PubMed ID: 24404915.
    Abstract:
    Hen eggs are well-known for their biological functions beyond basic nutrition. In this study, the antihypertensive effect of peptide RVPSL from egg protein has been evaluated by an in vivo model. In addition, the mRNA levels of renin, AT1 receptor, angiotensin-converting enzyme (ACE), and AT2 receptor in the rat kidney were investigated through real-time polymerase chain reaction. The Ang I, Ang II, renin, and aldosterone concentrations of serum were also measured. Our results indicated that the blood pressure of the spontaneously hypertensive rats administered RVPSL for 4 weeks decreased significantly compared to that of the negative group. The mRNA levels of renin, ACE, and AT1 receptor in kidney also decreased significantly. The serum Ang II, renin, and aldosterone concentrations of the treatment group were reduced in comparison to those of the negative group. It is hoped this study will help our understanding and potential use of RVPSL in the treatment or prevention of hypertension.
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