2 documents found, page 1 of 1
Comparative in vitro and in vivo antimalarial activity of the indole alkaloids ...
Silva, Luiz Francisco Rocha e; Montoia, Andréia; Amorim, Rodrigo C.N.; Melo, Márcia R.S.; Henrique, Marycleuma Campos; Nunomura, Sergio MassayoshiIndole alkaloids ellipticine (1), cryptolepine triflate (2a), rationally designed 11-(4-piperidinamino)cryptolepine hydrogen dichloride (2b) and olivacine (3) (an isomer of 1) were evaluated in vitro against Plasmodium falciparum and in vivo in Plasmodium berghei-infected mice. 1-3 inhibited P. falciparum (IC50 ≤ 1.4 μM, order of activity: 2b > 1 > 2a > 3). In vitro toxicity to murine macrophages was evaluated ...
In vitro and in vivo antimalarial activity and cytotoxicity of extracts, fracti...
Silva, Luiz Francisco Rocha e; Lima, Emerson Silva; Vasconcellos, Marne Carvalho de; Aranha, Ellen Suzany Pereira; Costa, David SiqueiraTachia sp. are used as antimalarials in the Amazon Region and in vivo antimalarial activity of a Tachia sp. has been previously reported. Tachia grandiflora Maguire and Weaver is an Amazonian antimalarial plant and herein its cytotoxicity and antimalarial activity were investigated. Spectral analysis of the tetraoxygenated xanthone decussatin and the iridoid aglyone amplexine isolated, respectively, from the ch...