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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Oxid+Med+Cell+Longev
2018 ; 2018
(ä): 9173436
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Fisetin Confers Cardioprotection against Myocardial Ischemia Reperfusion Injury
by Suppressing Mitochondrial Oxidative Stress and Mitochondrial Dysfunction and
Inhibiting Glycogen Synthase Kinase 3? Activity
#MMPMID29636855
Shanmugam K
; Ravindran S
; Kurian GA
; Rajesh M
Oxid Med Cell Longev
2018[]; 2018
(ä): 9173436
PMID29636855
show ga
Acute myocardial infarction (AMI) is the leading cause of morbidity and mortality
worldwide. Timely reperfusion is considered an optimal treatment for AMI.
Paradoxically, the procedure of reperfusion can itself cause myocardial tissue
injury. Therefore, a strategy to minimize the reperfusion-induced myocardial
tissue injury is vital for salvaging the healthy myocardium. Herein, we
investigated the cardioprotective effects of fisetin, a natural flavonoid,
against ischemia/reperfusion (I/R) injury (IRI) using a Langendorff isolated
heart perfusion system. I/R produced significant myocardial tissue injury, which
was characterized by elevated levels of lactate dehydrogenase and creatine kinase
in the perfusate and decreased indices of hemodynamic parameters. Furthermore,
I/R resulted in elevated oxidative stress, uncoupling of the mitochondrial
electron transport chain, increased mitochondrial swelling, a decrease of the
mitochondrial membrane potential, and induction of apoptosis. Moreover, IRI was
associated with a loss of the mitochondrial structure and decreased mitochondrial
biogenesis. However, when the animals were pretreated with fisetin, it
significantly attenuated the I/R-induced myocardial tissue injury, blunted the
oxidative stress, and restored the structure and function of mitochondria.
Mechanistically, the fisetin effects were found to be mediated via inhibition of
glycogen synthase kinase 3? (GSK3?), which was confirmed by a biochemical assay
and molecular docking studies.