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Chem Biodivers. 2010 Sep;7(9):2296-302. doi: 10.1002/cbdv.200900393.

Regulation of the 5-HT3A receptor-mediated current by alkyl 4-hydroxybenzoates isolated from the seeds of Nelumbo nucifera.

Author information

1
The Center for Cell Signaling & Drug Discovery Research, College of Pharmacy, Ewha Womans University, Seoul, Korea. yuny@ewha.ac.kr

Abstract

Four known alkyl 4-hydroxybenzoates, i.e., methyl 4-hydroxybenzoate (1), ethyl 4-hydroxybenzoate (2), propyl 4-hydroxybenzoate (3), and butyl 4-hydroxybenzoate (4), were isolated from the seeds of Nelumbo nucifera Gaertner (Nymphaeaceae) for the first time. The structures of the isolates were identified by 1D- and 2D-NMR spectroscopy and comparison with published values. The compounds were evaluated for their effects on the 5-HT-stimulated inward current (I(5-HT)) mediated by the human 5-HT(3)A receptors expressed in Xenopus oocytes. Compounds 1 and 2 enhanced the I(5-HT), but 4 reduced it. These results indicate that 4 is an inhibitor of the 5-HT(3)A receptors expressed in Xenopus oocytes.

PMID:
20860031
DOI:
10.1002/cbdv.200900393
[Indexed for MEDLINE]

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