Antiaging of Cucurbitane Glycosides from Fruits of Momordica charantia L

Oxidative Medicine and Cellular Longevity
Xueli CaoJianhua Qi

Abstract

Methanol extracts of Momordica charantia L. fruits are extensively studied for their antiaging activities. A new cucurbitane-type triterpenoid (1) and nine other known compounds (2-10) were isolated, and their structures were determined according to their spectroscopic characteristics and chemical derivatization. Biological evaluation was performed on a K6001 yeast bioassay system. The results indicated that all the compounds extended the replicative lifespan of K6001 yeast significantly. Compound 9 was used to investigate the mechanism involved in the increasing of the lifespan. The results indicated that this compound significantly increases the survival rate of yeast under oxidative stress and decreases ROS level. Further study on gene expression analysis showed that compound 9 could reduce the levels of UTH1 and SKN7 and increase SOD1 and SOD2 gene expression. In addition, it could not extend the lifespan of the yeast mutants of Uth1, Skn7, Sod1, and Sod2. These results demonstrate that compound 9 exerts antiaging effects via antioxidative stress and regulation of UTH1, SKN7, SOD1, and SOD2 yeast gene expression.

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Citations

Aug 30, 2020·Dermatologic Therapy·Keiichi HiramotoHiromi Kobayashi
Jun 21, 2020·Antioxidants·Ekaterina ProshkinaAlexey Moskalev
Aug 25, 2020·Oxidative Medicine and Cellular Longevity·Dejene DisasaJianhua Qi
Apr 14, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Umer FarooqJianhua Qi
Jun 15, 2019·Oxidative Medicine and Cellular Longevity·Umer FarooqJianhua Qi
Oct 4, 2020·Nutrients·Daljeet Singh DhanjalKamil Kuca

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Methods Mentioned

BETA
NMR
antioxidative stress
PCR

Software Mentioned

GraphPad Prism

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