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The renoprotective anti-hyperuricemia effect of Cornus officinalis extract in hyperuricemia rats based on network
Bonan Ding1, Jiaqi Liu1, Igor Lumbeto Tenda Kasay1
1Lab of Food Function and Nutrigenomics, College of Food Science and Technology, Hunan Agricultural University, Changsha, 410128, China.
Ethnopharmacological Relevance:
Corus officinalis Siebold & Zucc belongs to the genus Cornus in the Cornaceae family, and was first recorded in the "Shennong Herbal Classic", now has been included in "according to the tradition of both food and Chinese herbal medicines", consist of kidney and liver tonifying, antioxidant substances including cycloid glycosides, flavonoids, polyphenols, organic acids, etc. AIM OF THE STUDY: This study was aimed at discovering the mechanism underlying the anti-hyperemia effect of Cor in rats, particularly its protective effect against liver and kidney dysfunction caused by HUA.
Materials And Methods:
In this study, the effect of Cor extract against HUA was verified in rats, subsequently, network pharmacology combined with non-targeted metabolomic were performed to investigate its composition characteristics, and further multi-omics studies and molecular validation were performed to reveal molecular mechanism both in vivo and in vitro.
Results:
The results demonstrated that cornuside, hydroxygenkwanin and tetrahydroalstonine were the main bioactive compounds in Cor extract, which protected intestinal metabolism disorder by increasing relative abundances of Bacteroides, Lactobacillus Roseburia and Akkermansia, alleviated liver oxidative damage by activation of the Nrf2/HO-1(NQO1) antioxidant pathway, and reduced liver UA synthesis by inhibiting the expression of UA synthesis protein XOD in rat model. In addition, tetrahydroalstonine alleviated inflammation via inhibiting PI3K/Akt/NF-κB signaling pathway, with cornuside and hydroxygenkwanin enhanced renal tubule UA transport capacity by regulating the translations of XDH and HRP genes, all of which protected HUA-rat kidney from inflammatory infiltration damage, and reduced serum urea nitrogen (BUN), creatinine (CRE) and UA levels.
Conclusions:
These findings indicates that Cor can alleviate HUA by enhancing liver-renal-intestine UA metabolism, inhibiting inflammatory responses of liver-renal-intestine as well as providing hepatorenal protection.
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