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2015 ; 10
(7
): e0131392
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Antioxidant Properties of Whole Body Periodic Acceleration (pGz)
#MMPMID26133377
Uryash A
; Bassuk J
; Kurlansky P
; Altamirano F
; Lopez JR
; Adams JA
PLoS One
2015[]; 10
(7
): e0131392
PMID26133377
show ga
The recognition that oxidative stress is a major component of several chronic
diseases has engendered numerous trials of antioxidant therapies with minimal or
no direct benefits. Nanomolar quantities of nitric oxide released into the
circulation by pharmacologic stimulation of eNOS have antioxidant properties but
physiologic stimulation as through increased pulsatile shear stress of the
endothelium has not been assessed. The present study utilized a non-invasive
technology, periodic acceleration (pGz) that increases pulsatile shear stress
such that upregulation of cardiac eNOS occurs, We assessed its efficacy in normal
mice and mouse models with high levels of oxidative stress, e.g. Diabetes type 1
and mdx (Duchene Muscular Dystrophy). pGz increased protein expression and
upregulated eNOS in hearts. Application of pGz was associated with significantly
increased expression of endogenous antioxidants (Glutathioneperoxidase-1(GPX-1),
Catalase (CAT), Superoxide, Superoxide Dismutase 1(SOD1). This led to an increase
of total cardiac antioxidant capacity along with an increase in the antioxidant
response element transcription factor Nrf2 translocation to the nucleus. pGz
decreased reactive oxygen species in both mice models of oxidative stress. Thus,
pGz is a novel non-pharmacologic method to harness endogenous antioxidant
capacity.