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Hypoxia-inducible factor (HIF)-1α is a transcription factor that is critical for tissue adaption to hypoxia and inflammation. Previous studies had indicated that normoxic activation of HIF-1α in cancer involves inhibition or mutation of the metabolic enzyme succinate dehydrogenase (SDH). We have
We encountered a patient with diabetes mellitus due to the 3243 mitochondrial tRNA mutation(DM-Mt3243), who developed insulin edema and hepatic dysfunction after starting insulin. Such a rare phenomenon was unlikely to be a fortuitous coincidence in mitochondrial diabetes, as none in 197 non-mutant
This work describes the control exerted by dicarboxylate carrier and succinate dehydrogenase activities on the oxidative phosphorylations in rabbit brain mitochondria as an edema develops. Vasogenic edema leads to an uncompetitive inhibition of succinate dehydrogenase activity and to a large
Opening of the blood-brain barrier (BBB) and consequent edema are known to intensify 24-72 h after ischemic stroke, and research on potential ameliorative therapies in animal models may lead to improved clinical treatments to prevent brain swelling and the secondary damage it causes. In this study,
BACKGROUND
The severity of ethylene glycol toxicity is related to the metabolic acidosis resulting from the biotransformation of ethylene glycol into toxic metabolites. Glycolic acid causes severe acidosis and oxalate precipitates as calcium oxalate in the kidneys and other tissues.
METHODS
An adult
BACKGROUND
We report a 46-year-old woman with implications regarding pathogenesis of strokelike episodes in MELAS (mitochondrial encephalomyopathy, lactic acidosis, and strokelike episodes). She had a 10-month history of episodic seizures, strokes, cognitive decline, vomiting, and ileus. She also
OBJECTIVE
To observe the effects of electroacupuncture (EA) of different intensities on lactate dehydrogernase (LDH), succinate dehydrogenase (SDH) and ATPase in brain tissue of rats with cerebral ischemia-reperfusion injury (CI/R).
METHODS
Forty male SD rats were uniformly randomized into sham
In an attempt to develop an animal model for thyroid-associated ophthalmopathy (TAO) we have genetically immunized BALB/c and outbred (CD-1) mice with cDNAs encoding the thyroid and eye muscle shared protein G2s and full length human thyrotropin receptor (TSHr). Firstly, BALB/c mice were immunized
OBJECTIVE
To investigate the pathological changes in the neuromuscular junction during ischemia-reperfusion (IR) in the skeletal muscle.
METHODS
Forty-eight healthy adult Wistar rats (24 male, 24 female) were equally randomised into the following 6 groups: Group A (control group): no
The effects of revascularization on the morphological aspects of myocardial infarction have been studied in 87 animals. After permanent ligation of a coronary artery, the aspects are stereotyped and the histo-enzymatic and ultrastructural evolution is quite well known. On the contrary, early
Male Sprague-Dawley rats aged 3 weeks that were maintained on an iron-deficient diet for 4-5 weeks developed severe anemia with markedly reduced hemoglobin levels (3.94 +/- 0.14 Hb g% versus controls 12.9 +/- 0.11 Hb g%). Iron-deficiency resulted in marked cardiac hypertrophy (cardiomegaly). On
Chronic intraperitoneal injection of cadmium and copper salts produces cardiotoxic effects of various degree. The degree of the muscular tissue lesion in the ventricles and atria is inverse to the number of luminescent nervous terminals. Changes in the adrenergic fibers are accompanied with certain
The distribution of succinate dehydrogenase (SDH) activity and the corresponding changes in specific gravity were studied in cats with experimental focal ischemia. Two hours of tandem occlusion of the middle cerebral artery (MCA) and the conunon carotid artery produced a scattered reduction of SDH
A composite morpho-histo-biochemical and ultrastructural investigation of the myocardium of 50 subjects dying suddenly in the presence of alcoholic cardiomyopathy (ACMP) was carried out. The dynamics of changes in the myocardium in the development of ACMP is shown indicating that the main feature of
Histologic investigations together with histochemical and photometric measurements of enzyme activities were performed in retina of rabbits, whose blood supply had been totally interrupted for 1h. A retinal edema developed affecting the internal layers between the inner limiting membrane and the