Abstract
This research aimed to investigate the effect of silver carp hydrolysates (SCHs) on hypercholesterolemia and enterohepatic cholesterol metabolism. Results showed that in vitro gastrointestinal digestion products of Alcalase-SCH (GID-Alcalase) exhibited the highest inhibitory activity of cholesterol absorption mainly through downregulating the expression of essential genes related to cholesterol transport in a Caco-2 monolayer. After being absorbed by the Caco-2 monolayer, GID-Alcalase increased the low-density lipoprotein (LDL) uptake in HepG2 cells by enhancing the protein level of the LDL receptor (LDLR). The in vivo experiment showed that long-term intervention of Alcalase-SCH ameliorated hypercholesterolemia in ApoE-/- mice fed with a Western diet (WD). After transepithelial transport, four novel peptides (TKY, LIL, FPK, and IAIM) were identified, and these peptides possessed dual hypocholesterolemic functions including inhibition of cholesterol absorption and promotion of peripheric LDL uptake. Our results indicated for the first time the potential of SCHs as functional food ingredients for the management of hypercholesterolemia.
Original language | English |
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Pages (from-to) | 5565-5575 |
Number of pages | 11 |
Journal | Journal of Agricultural and Food Chemistry |
Volume | 71 |
Issue number | 14 |
DOIs | |
State | Published - Apr 12 2023 |
Bibliographical note
Publisher Copyright:© 2023 American Chemical Society.
Keywords
- LDL uptake
- cholesterol absorption
- hypercholesterolemia mice
- peptide sequences
- silver carp muscle hydrolysate
- transepithelial transport
ASJC Scopus subject areas
- General Chemistry
- General Agricultural and Biological Sciences