نتایج جستجو برای: myocardial ischemic reperfusion injury

تعداد نتایج: 520115  

Journal: :Circulation research 2006
Derek J Hausenloy Mihaela M Mocanu Derek M Yellon

To the Editor: In a recent article, Cai and Semenza1 claim to have demonstrated a role for modulation of PTEN activity in the setting of ischemic preconditioning (IPC), using an isolated perfused rat heart. We believe the findings of this study are potentially of great significance as this study is the first to implicate PTEN in myocardial ischemia– reperfusion injury. However, we question the ...

2013
Michael Rahbek Schmidt Hans Erik Bøtker

During the past 3 decades, several experimental studies have shown that ischemic conditioning reduces myocardial damage by modifying ischemia-reperfusion injury. A recent study in the Lancet indicates that remote ischemic preconditioning translates into clinical benefit in patients undergoing coronary artery bypass surgery. The implications of the study extend to patients undergoing elective an...

Journal: :The Journal of thoracic and cardiovascular surgery 2005
Igor E Konstantinov Sara Arab Jia Li John G Coles Cathy Boscarino Alessandro Mori Eva Cukerman Fayez Dawood Michael M H Cheung Mikiko Shimizu Peter P Liu Andrew N Redington

BACKGROUND We have recently demonstrated that remote ischemic preconditioning reduces ischemia-reperfusion injury in animal models. The mechanisms by which the remote ischemic preconditioning stimulus exerts its effect remain to be fully defined, and its effect on myocardial gene expression is unknown. We tested the hypothesis that remote ischemic preconditioning modifies myocardial gene expres...

Objective(s): Reperfusion of ischaemic myocardium results in reduced nitric oxide (NO) biosynthesis by endothelial nitric oxide synthase (eNOS) leading to endothelial dysfunction and subsequent tissue damage. Impaired NO biosynthesis may be partly due to increased levels of asymmetrical dimethylarginine (ADMA), an endogenous inhibitor of eNOS. As dimethylarginine dimet...

2016
Fawzi A. Babiker

Ischemic heart disease, also known as coronary heart disease or coronary artery disease, accounts for >50% of cardiovascular events and is a leading cause worldwide of morbidity and mortality. Hypoperfusion of the heart is the major cause of injury in ischemic heart disease, as it results in the death of cardiomyoctes due to a lack of oxygen and energy. This injury ultimately leads to a dead ar...

Journal: :Circulation 2001
G Horstick O Berg A Heimann O Götze M Loos G Hafner B Bierbach S Petersen S Bhakdi H Darius M Horstick J Meyer O Kempski

BACKGROUND Complement activation during reperfusion of ischemic myocardium augments myocardial injury, and complement inhibition with C1-esterase inhibitor (C1-INH) at the time of reperfusion exerts marked cardioprotective effects in experimental studies. Application of C1-INH in newborns, however, was recently reported to have dangerous and even lethal side effects. This study addresses the es...

2001
Frederick E. Domann Jun Luo

3 Introduction 3 Pathophysiological features of reperfusion injury 4 Metabolic changes in myocardial ischemia-reperfusion 7 Oxidative stress in myocardial ischemia-reperfusion 9 Types of antioxidants 11 Role of antioxidants in myocardial ischemia-reperfusion injury 12 Hypothesis 15 Hypothesis 1: Xanthine oxidase inhibitor can protect against myocardial ischemia-reperfusion injury. 15 Hypothesis...

نصیرزاده, محمد‌رضا,

Background and Objective: Wheras renal ischemic-reperfusion injury increases lipid peroxidation level in the liver tissues, it decreases the antioxidant activity and antioxidant enzymes. Olive leaves are considered as significant sources of bioactive phenolic compounds with superior antioxidant capacity, anti-inflammatory and radical scavenging. Materials and Methods: In this study 50 male r...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1982

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