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chloroform/hypoxia
Nuoroda įrašoma į mainų sritį
Puslapis 1 nuo 35 rezultatus
Cardiac antiarrhythmic evaluation of naloxone with or without propranolol using a modified chloroform-hypoxia screening test in the rat.
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The effects of naloxone and propranolol on cardiac arrhythmias and durations from respiratory arrest to ventricular asystole and cardiac standstill were studied in unanaesthetized young rats induced to suffer respiratory arrest and exhibit ventricular fibrillation (VF) by a modified chloroform
Icariside II from Epimedium koreanum inhibits hypoxia-inducible factor-1alpha in human osteosarcoma cells.
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Hypoxia-inducible factor-1 (HIF-1) is an important tumor-selective therapeutic target for solid tumors. Icariside II was isolated from Epimedium koreanum through successive fractionation with ethyl acetate, n-butanol, chloroform and hexane, followed by gel column chromatography. Icariside II
Hypoxia-inducible factor-1 inhibitory benzofurans and chalcone-derived diels-alder adducts from Morus species.
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Hypoxia-inducible factor-1 (HIF-1) is the central mediator of cellular responses to low oxygen concentrations and vital to many aspects of cancer biology. Bioassay-guided fractionation of the chloroform-soluble extracts of Morus species using a hypoxia response element (HRE)-dependent reporter assay
Acute chloroform ingestion successfully treated with intravenously administered N-acetylcysteine.
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Chloroform, a halogenated hydrocarbon, causes central nervous system depression, cardiac arrhythmias, and hepatotoxicity. We describe a case of chloroform ingestion with a confirmatory serum level and resultant hepatotoxicity successfully treated with intravenously administered N-acetylcysteine
"Experimentation" with chloroform.
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A young patient presented with unconsciousness, cardiac arrhythmias, arterial hypotension, and mild intravascular hemolysis after intentional inhalation of chloroform. After the initial complications had resolved, nausea, loss of appetite, and mild transitory jaundice developed.
Effect of hypoxia on carbon tetrachloride hepatotoxicity.
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The effect of hypoxia on carbon tetrachloride-induced hepatotoxicity was studied. Male rats were exposed to carbon tetrachloride for 2 hr in the presence of differing oxygen concentrations. Serum glutamate-pyruvate transaminase (SGPT) activities were measured 24 hr after the end of the exposure.
Hypoxia induces free radical damage to rat erythrocytes and spleen: analysis of the fluorescent end-products of lipid peroxidation.
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Several studies have shown that hypoxia induces alterations in the lipid membranes of many cell types. The mechanism of these changes might consist in membrane lipid peroxidation. Lipid peroxidation in erythrocytes and spleen is easily detected by measurement of the concentration of fluorescent
Pharmacodynamic screening and simulation study of anti-hypoxia active fraction of xiangdan injection.
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BACKGROUND
The herbal formula Xiangdan injection and its modifications have been used in traditional Chinese medicine for about hundreds years to alleviate pain and promoting blood.
OBJECTIVE
To investigate the anti-hypoxia active fraction of Xiangdan injection.
METHODS
Xiangdan injection was
Effect of post-hypoxic reoxygenation on DNA fragmentation in cortical neuronal nuclei of newborn piglets.
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Previous studies have shown an increased fragmentation of genomic DNA following hypoxia in cortical neuronal nuclei of newborn piglets. The present study tests the hypothesis that DNA fragmentation following hypoxia persists during reoxygenation in cortical neuronal nuclei of newborn piglets. To
Antiarrhythmic activity of p-hydroxy-N-(2-diethylaminoethyl) benzamide (the p-hydroxy isostere of procainamide) in dogs and mice.
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p-Hydroxy-N-(2-diethylaminoethyl)benzamide (2), the p-hydroxy isostere of procainamide (1), shows antiarrhythmic activity against acontine-induced atrial arrhythmia and lowers mean arterial blood pressure after iv infusion in dogs. In isolated canine Purkinje fibers, phenolic 2 in a bath
Development of a cardiac antiarrhythmic screening test utilizing theophylline in the rat.
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Cardiac arrhythmias were produced in Sprague-Dawley-derived rats by chloroform challenge. The incidence of cardiac arrhythmias so induced increased with age and as a function of dose after pretreatment with theophylline. The dose-response and time-action parameters of theophylline's predisposing
The detection of halocarbon-derived radical adducts in bile and liver of rats.
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The free radical metabolism of halocarbons has been studied in living animals by the techniques of spin trapping and electron paramagnetic resonance. Earlier work demonstrated that radical adducts of carbon tetrachloride can be detected in the bile of living rats treated with carbon tetrachloride
Platelet-activating factor contributes to immune cell and oxidant-mediated intestinal secretion.
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The sensitivity of the Ussing-chambered rat colon to stimulation of Cl- secretion (as measured by the change in short-circuit current) by exogenous platelet-activating factor (PAF) was increased significantly by washing the colon in vitro with Ringer's solution containing fatty acid-free albumin.
[Delayed disappearance of h-VEGF₁₆₅ mRNA and protein under regulation of hypoxic response element].
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Transfer of vascular endothelial growth factor (VEGF) gene to ischemic myocardium may provide a useful approach for angiogenesis and improve cardiac performance. However, uncontrolled expression of VEGF in vivo may result in certain side effects, such as hemangioma formation, retinopathy, and tumor
[The HIF1a polymorphism is a diagnostic marker of ischemic stroke].
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To study a variant of the C1772T polymorphism of the hypoxia inducible factor-1a (HIF1a) gene as a molecular genetic predictor of increased risk of ischemic stroke.
The study included patients with ischemic stroke which was confirmed clinically and by MRI (n=1200), the control group consisted of 500
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