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2015 ; 10
(12
): e0144033
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The Combination of Vitamin K3 and Vitamin C Has Synergic Activity against Forms
of Trypanosoma cruzi through a Redox Imbalance Process
#MMPMID26641473
Cristina Desoti V
; Lazarin-Bidóia D
; Martins Ribeiro F
; Cardoso Martins S
; da Silva Rodrigues JH
; Ueda-Nakamura T
; Vataru Nakamura C
; Farias Ximenes V
; de Oliveira Silva S
PLoS One
2015[]; 10
(12
): e0144033
PMID26641473
show ga
Chagas' disease is an infection that is caused by the protozoan Trypanosoma
cruzi, affecting millions of people worldwide. Because of severe side effects and
variable efficacy, the current treatments for Chagas' disease are unsatisfactory,
making the search for new chemotherapeutic agents essential. Previous studies
have reported various biological activities of naphthoquinones, such as the
trypanocidal and antitumor activity of vitamin K3. The combination of this
vitamin with vitamin C exerted better effects against various cancer cells than
when used alone. These effects have been attributed to an increase in reactive
oxygen species generation. In the present study, we evaluated the activity of
vitamin K3 and vitamin C, alone and in combination, against T. cruzi. The vitamin
K3 + vitamin C combination exerted synergistic effects against three forms of T.
cruzi, leading to morphological, ultrastructural, and functional changes by
producing reactive species, decreasing reduced thiol groups, altering the cell
cycle, causing lipid peroxidation, and forming autophagic vacuoles. Our
hypothesis is that the vitamin K3 + vitamin C combination induces oxidative
imbalance in T. cruzi, probably started by a redox cycling process that leads to
parasite cell death.