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Nat Prod Res. 2014;28(12):923-7. doi: 10.1080/14786419.2014.889136. Epub 2014 Feb 28.

Garcinielliptone FC, a polyisoprenylated benzophenone from Platonia insignis Mart., promotes vasorelaxant effect on rat mesenteric artery.

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  • 1a Medicinal Plants Research Center, Federal University of Piauí , Campus Ministro Petrônio Portella, SG-15, Ininga, CEP 64049-550 Teresina , PI , Brazil.


Polyisoprenylated benzophenones represent a group of chemical compounds commonly identified in Clusiaceae species and are responsible for a large amount of biological activities. In this work, the vasorelaxant effect induced by garcinielliptone FC (GFC) isolated from Platonia insignis Mart. (Clusiaceae), a monotype species from Platonia genus, was investigated. GFC promoted an endothelium-independent vasorelaxation on phenylephrine (PHE, 10(-5) mol L(-1))-induced vasoconstriction, but not on KCl (80 mmol L(-1))-induced vasoconstriction, on rat superior mesenteric artery rings. In addition, a concentration-dependent decrease of PHE- or serotonin-induced cumulative concentration-response curves was observed for GFC, and a slight decrease of pD₂ value on CaCl₂-induced vasoconstriction. In a Ca(2+)-free medium, GFC interfered in calcium mobilisation from PHE (10(-5) mol L(-1))-sensitive intracellular stores. GFC-induced vasorelaxant effect is probably mediated by a dual effect on mobilisation of calcium intracellular stores and attenuation of transmembrane calcium influx.


Clusiaceae; Platonia; benzophenone; calcium; garcinielliptone; vasorelaxant

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