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α-Glucosidase Inhibitory Profile of Catechins and Theaflavins
To clarify the postprandial glucose suppression effect of flavonoids, the inhibitory effects of catechins and theaflavins against alpha-glucosidase (AGH) were examined in this study. It was initiallyExpand
alpha-Glucosidase inhibitory profile of catechins and theaflavins.
It is demonstrated for the first time that TF-3-O-Gal can suppress glucose production from maltose through inhibition of AGH in the gut through the effects of catechins and theaflavins against alpha-glucosidase. Expand
Theflavins and theasinensin A derived from fermented tea have antihyperglycemic and hypotriacylglycerolemic effects in KK-A(y) mice and Sprague-Dawley rats.
Results indicate TFs and TSA induce antihyperglycemic responses in diabetic mice and are hypotriacylglycerolemic in rats by suppressing intestinal fat absorption. Expand
Olive leaf extract prevents spontaneous occurrence of non‐alcoholic steatohepatitis in SHR/NDmcr‐cp rats
The data suggest that olive leaf extract may help prevent NASH, presumably through its anti‐oxidative activity. Expand
Polyphenol composition of a functional fermented tea obtained by tea-rolling processing of green tea and loquat leaves.
Isolation of these new and known compounds confirms that reactions previously demonstrated by in vitro model experiments actually occur when fresh tea leaves are mechanically distorted and bruised during the production process. Expand
Transepithelial transport of theasinensins through Caco-2 cell monolayers and their absorption in Sprague-Dawley rats after oral administration.
The dimers of condensed catechins, theasinensins B and A, can be absorbed intact into rat blood and transported across Caco-2 cell monolayers probably through a TJ paracellular pathway. Expand
Stimulation of glucose uptake by theasinensins through the AMP-activated protein kinase pathway in rat skeletal muscle cells.
It was concluded that theasinensins A and B did in fact promote GLUT4 translocation to the plasma membrane in L6 myotubes through the CaMKK/AMPK signaling pathway, but not through the PI3K/Akt pathway. Expand
Increase of theaflavin gallates and thearubigins by acceleration of catechin oxidation in a new fermented tea product obtained by the tea-rolling processing of loquat ( Eriobotrya japonica ) and
The results from in vitro experiments suggested that acceleration of catechin oxidation was caused by the strong oxidation activity of Loquat leaf enzymes and a coupled oxidation mechanism with caffeoyl quinic acids, which are the major phenolic constituents of loquat leaves. Expand
Identification of alpha-glucosidase inhibitors from a new fermented tea obtained by tea-rolling processing of loquat (Eriobotrya japonica) and green tea leaves.
Catechins were the main candidates responsible for alpha-glucosidase or maltase inhibition in LG tea, followed by theaflavins, theasinensins, strictinin and 1,6-digalloylglucose. Expand
Absorption and Metabolic Behavior of Hesperidin (Rutinosylated Hesperetin) after Single Oral Administration to Sprague-Dawley Rat.
Hemperidin can enter into the circulating bloodstream in its conjugate forms, together with the conjugated forms of hesperetin, homoeriodictyol, and/or eriodictYol. Expand