hexokinase/احتشاء

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Inhibition of carnitine synthesis modulates protein contents of the cardiac sarcoplasmic reticulum Ca2+-ATPase and hexokinase type I in rat hearts with myocardial infarction.

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It was previously reported that inhibition of carnitine synthesis by 3-(2,2,2-trimethyl-hydrazinium) propionate (MET-88) restores left ventricular (LV) systolic and diastolic function in rats with myocardial infarction (MI). Preservation of the calcium uptake function of sarcoplasmic reticulum

Enhanced activity and subcellular redistribution of myocardial hexokinase after acute myocardial infarction.

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BACKGROUND Hexokinase (HK) is known to possess both anti-oxidant and anti-apoptotic properties. This study investigated the behavior of myocardial HK in response to myocardial infarction (MI). METHODS Adult male Wistar rats with various degrees of MI after coronary ligation were examined 4 weeks

Extent of mitochondrial hexokinase II dissociation during ischemia correlates with mitochondrial cytochrome c release, reactive oxygen species production, and infarct size on reperfusion.

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BACKGROUND The mechanisms by which ischemic preconditioning (IP) inhibits mitochondrial permeability transition pore opening and, hence, ischemia-reperfusion injury remain unclear. Here we investigate whether and how mitochondria-bound hexokinase 2 (mtHK2) may exert part of the cardioprotective

The role of hexokinase in cardioprotection - mechanism and potential for translation.

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Mitochondrial permeability transition pore (mPTP) opening plays a critical role in cardiac reperfusion injury and its prevention is cardioprotective. Tumour cell mitochondria usually have high levels of hexokinase isoform 2 (HK2) bound to their outer mitochondrial membranes (OMM) and HK2 binding to

Lipid metabolism, cerebral metabolic rate, and some related enzyme activities after brain infarction in rats.

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Multiple infarcts were produced in cerebral hemispheres of rats by injecting calibrated 50-micron microspheres into the left internal carotid artery, and alterations in lipid and energy metabolism were evaluated 24 hours later in the embolized hemisphere. Total phospholipid content was decreased by

Alterations in brain hexokinase activity associated with heart failure in rats.

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This study examined the activity of discrete regions of the brain as assessed with histological localization and photodensitometric quantification of the metabolic enzyme hexokinase in a group of rats with coronary occlusion (HF) and in sham-operated control rats. Three weeks after surgery, the mean

Human coronary thrombus formation is associated with degree of plaque disruption and expression of tissue factor and hexokinase II.

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BACKGROUND Atherosclerotic plaque thrombogenicity is a critical factor that affects thrombus formation and the onset of acute myocardial infarction (AMI). The aim of this study was to identify the vascular factors involved in thrombus formation and AMI onset. RESULTS Culprit lesions in 40 coronary

[The role of thromboxane A2 receptor gene promoter polymorphism in acute cerebral infarction].

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OBJECTIVE To investigate the association between thromboxane A2 receptor (TXA2R) gene promoter rs2271875, rs768963 polymorphism and acute cerebral infarction in Chinese Han population. METHODS A prospective study was conducted. From October 2009 to May 2013, 223 patients with cerebral infarction

Determination of total creatine kinase activity in blood serum using an amperometric biosensor based on glucose oxidase and hexokinase.

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Creatine kinase (CK: adenosine-5-triphosphate-creatine phosphotransferase) is an important enzyme of muscle cells; the presence of a large amount of the enzyme in blood serum is a biomarker of muscular injuries, such as acute myocardial infarction. This work describes a bi-enzyme (glucose oxidase

Cardiac metabolism as a driver and therapeutic target of myocardial infarction.

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Reducing infarct size during a cardiac ischaemic-reperfusion episode is still of paramount importance, because the extension of myocardial necrosis is an important risk factor for developing heart failure. Cardiac ischaemia-reperfusion injury (IRI) is in principle a metabolic pathology as it is

Targeting hexokinase II to mitochondria to modulate energy metabolism and reduce ischaemia-reperfusion injury in heart.

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Mitochondrially bound hexokinase II (mtHKII) has long been known to confer cancer cells with their resilience against cell death. More recently, mtHKII has emerged as a powerful protector against cardiac cell death. mtHKII protects against ischaemia-reperfusion (IR) injury in skeletal muscle and

Effects of acupuncture on glycometabolic enzymes in multi-infarct dementia rats.

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Acupuncture has exhibited therapeutic effects on vascular dementia in our previous research. The mechanism of its anti-dementia effects involves energy metabolism. For brain cells, glucose metabolism is almost the only source of energy, and glucose metabolism disorders are early signs of dementia.

Evidence for the detrimental effect of adrenaline infused to healthy dogs in doses imitating spontaneous secretion after coronary occlusion.

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We have previously shown that acute coronary occlusion in the dog is often accompanied by increased adrenaline release into the blood. In the present study the consequences of this humoral reaction were studied in anaesthetised healthy mongrel dogs subjected to adrenaline infusion administered at a

[Histochemical demonstration of glial enzyme activity. II. Reagent and neoplastic glia].

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Enzyme activity changes in reagent and neoplastic glia are examined. In the case of reagent glia, considerably increased ADPase, ATPase and AMPase values have been observed in experimental elective parenchymal necrosis in the rat, in hypertrophic astrocytes from recent plaques in multiple necrosis,

High- versus moderate-intensity aerobic exercise training effects on skeletal muscle of infarcted rats.

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Poor skeletal muscle performance was shown to strongly predict mortality and long-term prognosis in a variety of diseases, including heart failure (HF). Despite the known benefits of aerobic exercise training (AET) in improving the skeletal muscle phenotype in HF, the optimal exercise intensity to

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