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Acta Brasiliensis
Article . 2017 . Peer-reviewed
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Acta Brasiliensis
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Avaliação da atividade de aldeídos aromáticos e suas oximas frente à enzima acetilcolinesterase eritrocitária humana

Authors: Cleônia Roberta Melo Araújo; Arlan De Assis Gonsalves; Victória Laysna dos Anjos Santos; Maíra Dias Mangueira Bastos;

Avaliação da atividade de aldeídos aromáticos e suas oximas frente à enzima acetilcolinesterase eritrocitária humana

Abstract

Considerando a importância terapêutica das drogas inibidoras da acetilcolinesterase, bem como dos regeneradores da enzima, em casos de intoxicações por organofosforados. A atividade de aldeídos aromáticos e suas respectivas oximas foi avaliada frente à acetilcolinesterase eritrocitária humana. As oximas foram preparadas a partir da oximação do benzaldeído, do 4-hidroxibenzaldeído, do 4-hidroxi-3-metoxibenzaldeído e do 4-dimetialminobenzaldeído, e em seguida, o ensaio de Ellman foi empregado para avaliar o comportamento destes compostos frente à acetilcolinesterase ativa e inibida por diclorvós. Os aldeídos avaliados apresentaram atividade inibidora da acetilcolinesterase nas porcentagens de 21,33%, 53,00%, 44,00% e 62,67% respectivamente para benzaldeído, 4-hidroxibenzaldeído, 4-hidroxi-3-metoxibenzaldeído e 4- dimetilminobenzaldeído. Dentre as oximas avaliadas, apenas a dimetilaminobenzaldoxima apresentou atividade inibitória (36,67%). A benzaldoxima, a 4-hidroxibenzaldoxima e a 4-hidroxi-3-metoxibenzaldoxima mostraram-se capazes de regenerar modestamente a atividade enzimática em 9,21%, 32,83% e 8,90%, respectivamente, quando a enzima se encontrava inibida por diclorvós. Os aldeídos aromáticos testados apresentaram potencial atividade inibitória da acetilcolinesterase eritrocitária, na concentração de 100mM, sendo o maior potencial demonstrado pelo 4-dimetilamibenzaldeído, com 62,67% de inibição. As oximas, com exceção da dimetilaminobenzaldoxima, se comportaram como regeneradores fracos da enzima inibida por diclorvós, mostrando a relevância do grupo oxima para a regeneração da enzima inibida por organofosforados.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold