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Chemical composition, antioxidant and topical antiinflammatory activities of Croton cordiifolius Baill. (Euphorbiaceae)

Alves, Iasmine Andreza Basilio dos Santos; Santos, Simone Maria dos; Mendes, Raudiney Frankilin Vasconcelos; Silva, José Wellinton da; Rodrigues, Maria de Fátima; Ramos, Bárbara de Azevedo; Silva, Márcia Vanusa da; Correia, Maria Tereza dos Santos; Tenório, Fernanda das Chagas Angelo Mendes; Jorge, Roberta Jeane Bezerra; Martins, René Duarte; Albuquerque, Julianna Ferreira Cavalcanti de; Randau, Karina Perrelli; Ximenes, Rafael Matos.
J Med Plant Res; 11(2): 22-33, Jan. 2017.
Artigo em Português | MTYCI | ID: biblio-915076
Croton cordiifolius is widely used in Brazilian Caatinga folk medicine to treat general inflammation, pain, and gastrointestinal disturbances. Currently, its medicinal properties are not well understood, owing to the absence of chemical and pharmacological studies. The aims of this work were to analyze the chemical composition of C. cordiifolius stem bark and evaluate its in vitro antioxidant and in vivo anti-inflammatory activities. C. cordiifolius ethanolic extract (CcEE) was obtained by maceration, while essential oil (CcEO) was extracted by hydrodistillation in a Clevenger-type apparatus. The chemical composition was evaluated by thin-layer chromatography and GCMS. Total phenolics, flavonoids, and antioxidant activity were quantitated by spectrophotometry. Topical anti-inflammatory activity was evaluated by different ear edema models in mice. The major compounds in CcEO were α-pinene (51.76%) and ß-pinene (19.08%). CcEE analysis indicated the presence of alkaloids, mono- and sesquiterpenes, flavonoids, phenylpropanoids, triterpenes, steroids, and coumarins. CcEE showed antioxidant activity in vitro. In a topical anti-inflammatory assay, CcEO showed no activity. On the contrary, CcEE inhibited ear edema induced by phorbol 12-myristate 13-acetate (PMA), arachidonic acid (AA), ethyl phenylpropriolate (EPP), and phenol. Probable mechanisms include inhibition of AA metabolite biosynthesis, vasoactive amine activity, and cytokine release/activity. These results corroborate the popular reputation of C. cordiifolius as an anti-inflammatory remedy.(AU)
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