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Study on absorption activity of five components of Polygonum orientale L. Flower in Caco-2 cell monolayer / 中国药理学通报
Chinese Pharmacological Bulletin ; (12): 764-769, 2018.
Article in Chinese | WPRIM | ID: wpr-705124
ABSTRACT
Aim To observe the absorption activity of five components of Polygonum orientale L. Flower ex-tract in Caco-2 cell monolayer. Methods The effects of different concentrations, time, temperature, pH and P-glycoprotein inhibitors on Caco-2 cells were investi-gated by UPLC-MS/MS. Results The absorption of five components of Polygonum orientale L. Flower ex-tract presented a concentration-and time-dependent manner, and the uptake of quercetin was reduced in Caco-2 cells after 90 min. There was a highest intake at 37℃,and the uptake of four components was best in acid environment except for the quercetin at pH 6 , which was best at pH5 . The uptake of quercetin and kaempferol was significantly improved after the addition of P-glycoprotein inhibitors of verapamil. Conclusions The cellular uptake mechanisms of the five compo-nents of Polygonum orientale L. Flower extract is man-inly through passive diffusion. P-glycoprotein is in-volved in the uptake of quercetin and kaempferol.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Pharmacological Bulletin Year: 2018 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Pharmacological Bulletin Year: 2018 Type: Article