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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 Med+Sci+Monit
2016 ; 22
(ä): 1250-7
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Plumbagin Mediates Cardioprotection Against Myocardial Ischemia/Reperfusion
Injury Through Nrf-2 Signaling
#MMPMID27078001
Wang SX
; Wang J
; Shao JB
; Tang WN
; Zhong JQ
Med Sci Monit
2016[Apr]; 22
(ä): 1250-7
PMID27078001
show ga
BACKGROUND Plumbagin is a potent antioxidant with anti-inflammatory and
anti-carcinogenic action. Myocardial ischemia/reperfusion injury results in organ
damage through oxidative stress and inflammatory mechanisms. In this study, we
analyzed the potential role of plumbagin against myocardial I/R injury in Wistar
rats. MATERIAL AND METHODS Oxidative stress was measured through ROS, lipid
peroxide content, and antioxidant enzyme activities. The expression of redox
signaling and inflammatory proteins was analyzed through Western blotting.
Inflammatory cytokine expressions were determined through ELISA. RESULTS
Oxidative stress status was reduced by plumbagin by decreasing ROS and lipid
peroxide levels in rats with myocardial I/R (MI/R) injury. Plumbagin regulated
redox imbalance induced by I/R injury by modulating the transcription factors
NF-?B and Nrf-2. Further, downstream targets of NF-?B (COX-2, iNOS) and Nrf-2
(HO-1, NQO1 and GST) expression were significantly downregulated by plumbagin
treatment. Pro-inflammatory cytokine expressions were significantly abrogated by
plumbagin treatment. CONCLUSIONS This study shows the protective role of
plumbagin against myocardial I/R injury by regulating antioxidant and
inflammatory mechanisms.
|Animals
[MESH]
|Anti-Inflammatory Agents/pharmacology
[MESH]
|Anticarcinogenic Agents/pharmacology
[MESH]
|Antioxidants/pharmacology
[MESH]
|Apoptosis/drug effects
[MESH]
|Lipid Peroxidation/drug effects
[MESH]
|Male
[MESH]
|Mice
[MESH]
|Mice, Inbred C57BL
[MESH]
|Myocardial Reperfusion Injury/metabolism/*prevention & control
[MESH]