Bioactive peptides are specific peptide fragments that positively exert various functional and biological activities and ultimately influence health. Corn protein are potential precursor proteins for bioactive peptides. This review encompasses the studies reported to date on the production, isolation, purification, and characterization technologies of bioactive corn peptides (CPs), with particular attention being devoted to these peptides’ different health effects, including antioxidant, antihypertensive, hepatoprotective, alcohol‐metabolism‐facilitating, anti‐inflammatory, anticancer, antimicrobial, and dipeptidyl peptidase IV (DPP‐IV) inhibitory activities. The review also describes studies examining the potential mechanisms believed to be involved in these bioactivities, and the possible absorption and transport pathways of CPs are summarized.
ScopeVal‐Ser‐Glu‐Glu (VSEE), identified from duck egg white peptides, has been proven to facilitate calcium absorption in a previous study. Since prevention of osteoporosis is important, it might act as a potential cofactor in osteoporosis prevention. Therefore, the aim of this study is to investigate the regulation of VSEE on osteoporosis and abnormal lipid metabolisms.Methods and resultsMC3T3‐E1 cell and ovariectomized (OVX) rat model are used to evaluate VSEE on regulation of bone and lipid metabolisms. Differentiation and matrix mineralization of preosteoblast are significantly increased by VSEE (p <0.05), which attributed to stimulating calcium influx, then to activating Wnt/β‐catenin signaling pathway and regulating runt‐related transcription factor 2 and osteoprotegerin. VSEE can cross Caco‐2/HT‐29 co‐cultured monolayer via paracellular pathway and peptide transporter 1 (PepT1), and can be detected in blood and maximum concentration is 122.84 ± 3.68 mg L−1 at 60 min. Additionally, VSEE reverses bone loss and regulate dyslipidemia through Wnt/β‐catenin signaling pathway in OVX rats. Firmicutes phylum, Veillonellaceae, Prevotellaceae and six genera in VSEE group are significantly different compared with the Model group (p < 0.05).ConclusionVSEE promotes bone growth and inhibit abnormal lipid metabolism in an OVX model through the regulation of intestinal microbiota compositions and Wnt/β‐catenin signal pathway.
In this study, degraded polysaccharides from Sargassum fusiforme (PSF-T2) were prepared by UV/H2O2 treatment for 2 h, and its effects on ameliorating dextran sulfate sodium-induced colitis were evaluated using a mouse model.
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