نتایج جستجو برای: ischemic reperfusion injury

تعداد نتایج: 398121  

Journal: :Eureka: Health Sciences 2021

The use of hemostatic tourniquet is a proved means primary care. However, systemic disorders, as well ultrastructural, in the area compression can significantly worsen condition injured organism.
 aim. Estimation catalase level rats’ liver on background modifications ischemic-reperfusion syndrome to know severest pathogenic combination for Materials and methods. 260 white adult male rats w...

Gholam Abbas Dehghani, Mohammad Taghi Mohammadi, Seyed Mostafa Shid Moosavi,

Introduction: Nitric oxide seems to play a dual role in ischemia/reperfusion injury. Few studies have investigated whether it exacerbates or improves brain edema. In the present study, we inhibited the activity of nitric oxide synthase by L-NAME and evaluated the cerebral infarct volume, tissue swelling and brain edema, alongside the measurement of blood flow of the ischemic region. Methods...

2009
Kristin Veighey Raymond J. MacAllister

Ischemia-reperfusion injury is a composite of damage accumulated during reduced perfusion of an organ or tissue and the additional insult sustained during reperfusion. Such injury occurs in a wide variety of clinically important syndromes, such as ischemic heart disease and stroke, which are responsible for a high degree of morbidity and mortality worldwide. Basic research has identified a numb...

Journal: :Circulation research 2015
Gerd Heusch

Reperfusion is mandatory to salvage ischemic myocardium from infarction, but reperfusion per se contributes to injury and ultimate infarct size. Therefore, cardioprotection beyond that by timely reperfusion is needed to reduce infarct size and improve the prognosis of patients with acute myocardial infarction. The conditioning phenomena provide such cardioprotection, insofar as brief episodes o...

Journal: :Cardiovascular research 1998
H M Piper D García-Dorado M Ovize

In clinical therapy of evolving acute myocardial infarction, coronary reperfusion has proven to be the only way to limit infarct size, provided it occurs soon enough after coronary artery occlusion. However, there is also evidence that reperfusion is accompanied by detrimental manifestations known as ‘reperfusion injury’. Reperfusion injury refers to a causal event associated with reperfusion t...

Objective(s): Paeoniflorin (PF) has anti-oxidation, anti-inflammation, anti-apoptosis, and neuroprotection pharmacological effects against ischemic injury. The aim of the present study was to investigate the neuroprotection mechanisms of PF in cerebral ischemia-reperfusion injury rats.Materials and Methods: We established an animal model of cerebral infarct by occlusion of the middle cerebral a...

2013
Kaoru Takahashi-Sato Masahiro Murakawa Junko Kimura Masa-aki Ito Isao Matsuoka

BACKGROUND Ectonucleotidase plays an important role in the regulation of cardiac function by controlling extracellular levels of adenine nucleotides and adenosine. To determine the influence of ischemia-reperfusion injury on ectonucleotidase activity in coronary vascular bed, we compared the metabolic profile of adenine nucleotides during the coronary circulation in pre- and post-ischemic heart...

2012
Richard Engbersen Niels P Riksen Marc J Mol Bert Bravenboer Otto C Boerman Patrick Meijer Wim JG Oyen Cees Tack Gerard A Rongen Paul Smits

BACKGROUND In patients with type 1 diabetes mellitus (T1DM), cardiovascular events are more common, and the outcome following a myocardial infarction is worse than in nondiabetic subjects. Ischemic or pharmacological preconditioning are powerful interventions to reduce ischemia reperfusion (IR)-injury. However, animal studies have shown that the presence of T1DM can limit these protective effec...

Journal: :Journal of pharmacological sciences 2014
Junpei Mutoh Masahiro Ohsawa Hiroaki Hisa

Renal ischemia produces renal sympathoexcitation that is responsible for the development of ischemic acute kidney injury. The present study examined changes in the sympathetic nerve function in mice. Ischemic acute kidney injury was induced by occlusion of both renal pedicles. Renal ischemia/reperfusion increased blood urea nitrogen and plasma creatinine and expression of tyrosine hydroxylase, ...

2005

CORONARY HEART DISEASE is the leading cause of death in the Western world and represents one of the major burdens on healthcare systems today. Targeting those strategies that limit the damage sustained as a result of a lethal ischemic insult has been a major goal for many years. One of these strategies, termed ischemic preconditioning, in which brief nonlethal episodes of ischemia protect the m...

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