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Curine, an Alkaloid Isolated From Chondrodendron Platyphyllum Inhibits Prostaglandin E2 in Experimental Models of Inflammation and Pain

Curine, an Alkaloid Isolated From Chondrodendron Platyphyllum Inhibits Prostaglandin E2 in Experimental Models of Inflammation and Pain

Fagner Carvalho Leite, Jaime Ribeiro-Filho, Hermann Ferreira Costa, Paula Regina Rodrigues Salgado, Andrea Surrage Calheiros, Alan Brito Carneiro, Reinaldo Nobrega de Almeida, Celidarque da Silva Dias, etc.

Planta Med. 2014 Aug;80(13):1072-8.

PMID: 25197953

Abstract:

Curine is a bisbenzylisoquinoline alkaloid that is isolated from Chondrodendron platyphyllum, a plant that is used to treat malaria, inflammation, and pain. Recent reports have demonstrated the antiallergic effects of curine at nontoxic doses. However, its anti-inflammatory and analgesic properties remain to be elucidated. This study investigated the anti-inflammatory and analgesic effects of curine in mice. We analyzed the effects of an oral treatment with curine in the formation of paw edema, vascular permeability, abdominal contortion, licking behavior, and hyperalgesia using different inflammatory stimuli. Curine significantly inhibited the formation of paw edema by decreasing vascular permeability, inhibited the acetic acid-induced writhing response, inhibited the licking behavior during inflammation but not during the neurogenic phase of the formalin test, and inhibited carrageenan-induced hyperalgesia. Finally, curine inhibited prostaglandin E2 production in vitro without affecting cyclooxygenase-2 expression. The effects of curine treatment were similar to the effects of indomethacin, but were different from the effects of morphine treatment, suggesting that the analgesic effects of curine do not result from the direct inhibition of neuronal activation but instead depend on anti-inflammatory mechanisms that, at least in part, result from the inhibition of prostaglandin E2 production. In conclusion, curine presents anti-inflammatory and analgesic effects at nontoxic doses and has the potential for use in anti-inflammatory drug development.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP436055	(−)-Curine		436-05-5	Price

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