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High Content Screening in Neurodegenerative Diseases
Published on: January 6, 2012
Phenolic compounds from Jacaranda caroba (Vell.) A. DC.: approaches to neurodegenerative disorders
Federico Ferreres1, Clara Grosso, Angel Gil-Izquierdo
1Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), PO Box 164, 30100 Campus University Espinardo, Murcia, Spain. federico@cebas.csic.es
Abstract:
Diseases affecting the central nervous system are spread throughout the world. As so, more efficient and safe neuroprotective drugs are required. The present study describes, for the first time, the phenolic composition and bioactivity of Jacaranda caroba (Vell.) A. DC, a species whose infusion is consumed as traditional medicine. The HPLC-DAD-ESI/MS(n) analysis revealed the presence of four dicaffeoyl acid derivatives and nine flavonoids, comprising quercetin, kaempferol and isorhamnetin derivatives. Twelve compounds are described for the first time in Jacaranda genus. Although isorhamnetin-3-O-rhmanoside-7,4'-di-O-glucoside and quercetin-3-O-(2-pentosyl)hexoside are the main metabolites in both aqueous and hydromethanolic extracts, qualitative and quantitative differences were found between them. Aqueous extract is richer in dicaffeoyl acid derivatives. Both extracts proved to be strong radicals' scavengers and effective monoamine-oxidase A inhibitors, but showed weak protection against cholinesterases' activity. The results highlight the value of J. caroba as a source of health-promoting antioxidants and antidepressant compounds.
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