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Abstract Title:

Nuciferine restores potassium oxonate-induced hyperuricemia and kidney inflammation in mice.

Abstract Source:

Eur J Pharmacol. 2015 Jan 15 ;747:59-70. Epub 2014 Dec 8. PMID: 25499818

Abstract Author(s):

Ming-Xing Wang, Yang-Liu Liu, Ying Yang, Dong-Mei Zhang, Ling-Dong Kong

Article Affiliation:

Ming-Xing Wang

Abstract:

Nuciferine, a major aporphine alkaloid of the leaves of Nelumbo nucifera, was found to decrease serum urate levels and improved kidney function, as well as inhibited system and renal interleukin-1β (IL-1β) secretion in potassium oxonate-induced hyperuricemic mice. Furthermore, nuciferine reversed expression alteration of renal urate transporter 1 (URAT1), glucose transporter 9 (GLUT9), ATP-binding cassette, subfamily G, membrane 2 (ABCG2), organic anion transporter 1 (OAT1), organic cationtransporter 1 (OCT1), and organic cation/carnitine transporters 1/2 (OCTN1/2) in hyperuricemic mice. More importantly, nuciferine suppressed renal activation of Toll-like receptor 4/myeloid differentiation factor 88/NF-kappaB (TLR4/MyD88/NF-κB) signaling and NOD-like receptor family, pyrin domaincontaining 3 (NLRP3) inflammasome to reduce serum and renal IL-1β levels in hyperuricemic mice with renal inflammation reduction. The anti-inflammatroy effect of nuciferine was also confirmed in human proximal renal tubular epithelial cells (HK-2 cells) incubated with 4mg/dl uric acid for 24h. Thisstudy firstly reported the anti-hyperuricemic and anti-inflammatory effects of nuciferine by regulating renal organic ion transporters and inflammatory signaling in hyperuricemia. These results suggest that a dietary supplement of nuciferine rich in lotus leaf may be potential for the prevention and treatment of hyperuricemia with kidney inflammation.

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