| bufadienolides from parotoid gland secretions of cuban toad peltophryne fustiger (bufonidae): inhibition of human kidney na(+)/k(+)-atpase activity. | parotoid gland secretions of toad species are a vast reservoir of bioactive molecules with a wide range of biological properties. herein, for the first time, it is described the isolation by preparative reversed-phase hplc and the structure elucidation by nmr spectroscopy and/or mass spectrometry of nine major bufadienolides from parotoid gland secretions of the cuban endemic toad peltophryne fustiger: ψ-bufarenogin, gamabufotalin, bufarenogin, arenobufagin, 3-(n-suberoylargininyl) marinobufagin ... | 2016 | 26615828 |