期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 69, 期 40, 页码 12063-12071出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.1c05599
关键词
ACE inhibitory peptides; biomarkers; mechanisms; metabolomics; spontaneously hypertensive rats
资金
- National Natural Science Foundation of China [31901635]
The study revealed that the ACE inhibitory peptide QIGLF derived from egg white may exert antihypertensive effects by improving endothelial dysfunction, providing a theoretical basis for future research and application of ACE inhibitory peptides in the prevention and improvement of hypertension.
The angiotensin-converting enzyme (ACE) inhibitory peptide QIGLF derived from egg white was shown to have significant in vivo antihypertensive effects in our previous study, but the intervention mechanisms at the metabolic level are still unclear. The UPLC-QTOF/MS-based untargeted metabolomics approach was used to clarify the potential antihypertensive mechanisms of QIGLF in the serum of spontaneously hypertensive rats (SHRs). Multivariate statistical analysis showed a clear difference in the metabolite profiles between the QIGLF and model groups. The results suggested that eight potential biomarkers were identified, that is, adrenic acid, ursodeoxycholic acid, glycocholic acid, taurocholic acid, tryptophan, acetylindoxyl, tyrosine, and 2-phenylethanol, which were mainly involved in aromatic amino acid biosynthesis and metabolism, biosynthesis of bile acid, and biosynthesis of unsaturated fatty acids. QIGLF might exert antihypertensive effects by improving endothelial dysfunction. This study provides a theoretical basis for future research and application of ACE inhibitory peptides in the prevention and improvement of hypertension.
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