carbohydrate/hypoxia

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High-carbohydrate diet promotes the adaptation to acute hypoxia in zebrafish.

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Oxygen deprivation (hypoxia) is a common challenge in water environment, which causes lack of energy and oxidative damage in organisms. Many studies have indicated a number of physiological and metabolic changes under hypoxia, but the effects of dietary nutrients on hypoxia tolerance have not been

Long-term programming effect of embryonic hypoxia exposure and high-carbohydrate diet at first feeding on glucose metabolism in juvenile rainbow trout.

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Environmental conditions experienced during early life play an important role in the long-term metabolic status of individuals. The present study investigated whether hypoxia exposure [for 24 h: 2.5 mg O2 l-1 (20% dissolved O2)] during the embryonic stage alone (hypoxic history) or combined with a

Effects of carbohydrate and glutamine supplementation on cytokine production by monocytes after exercise in hypoxia: A crossover, randomized, double-blind pilot study.

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The aim of this study was to evaluate the combined effects of carbohydrate (CHO) and glutamine (Gln) supplementation on cytokine production by monocytes after exercise until exhaustion performed in hypoxia.Fifteen physically active men underwent three

Carbohydrate Supplementation and the Influence of Breakfast on Fuel Use in Hypoxia

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Purpose: This study investigated the effect of carbohydrate supplementation on substrate oxidation during exercise in hypoxia after pre-exercise breakfast consumption and omission. Methods:

[Carbohydrate metabolism of the brain in hypoxia].

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Using the data of arteriovenous differences, it has been for the first time demonstrated that patients with severe craniocerebral trauma (SCST) are characterized by glucose release by brain tissue combined with (p less than 0.05) pyruvate consumption. The above phenomenon is more often (p less than

Fetal myocardial oxygen and carbohydrate consumption during acutely induced hypoxemia.

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Two days after catheter placement we measured the heart rate, arterial blood pressure, myocardial blood flow, and the myocardial consumption of oxygen, glucose, lactate, and pyruvate in 11 fetal sheep in utero. We then administered 8-10% oxygen to the ewe, producing a 50% decrease in oxygen content

An enzymatic bridge between carbohydrate and amino acid metabolism: regulation of glutamate dehydrogenase by reversible phosphorylation in a severe hypoxia-tolerant crayfish.

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Glutamate dehydrogenase (GDH) (EC 1.4.1.3) is a crucial enzyme involved in bridging two metabolic pathways, gating the use of glutamate for either amino acid metabolism, or carbohydrate metabolism. The present study investigated GDH from tail muscle of the freshwater crayfish Orconectes virilis

Hepatopancreas gluconeogenesis during anoxia and post-anoxia recovery in Chasmagnathus granulata crabs maintained on high-protein or carbohydrate-rich diets.

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C. granulata is a semiterrestrial crab that lives in the mesolittoral and the supralittoral zones of estuaries and faces hypoxia and anoxia when exposed to atmospheric air. The carbohydrate or protein content of the diets administered to the crabs induced different metabolic adjustments during

Control of carbohydrate metabolism in an anoxia-tolerant nervous system.

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Anoxia-tolerant animal models are crucial to understand protective mechanisms during low oxygen excursions. As glycogen is the main fermentable fuel supporting energy production during oxygen tension reduction, understanding glycogen metabolism can provide important insights about processes involved

[Carbohydrate metabolic indices in the lungs of rats in repeated and chronic hypoxia].

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Inhibition of glycogen and glucose synthesis as well as of hexokinase and lactate dehydrogenase activities and an increase in content of lactate were found in rats after repeated (within 7 days) and chronic (within 35 days) hypoxic treatment ("height 9000 m, daily exposure in an altitude chamber

Acclimatory responses of the Daphnia pulex proteome to environmental changes. I. Chronic exposure to hypoxia affects the oxygen transport system and carbohydrate metabolism.

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BACKGROUND Freshwater planktonic crustaceans of the genus Daphnia show a remarkable plasticity to cope with environmental changes in oxygen concentration and temperature. One of the key proteins of adaptive gene control in Daphnia pulex under hypoxia is hemoglobin (Hb), which increases in hemolymph

Effect of carbohydrate ingestion on central fatigue during prolonged running exercise in moderate hypoxia.

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To determine if acute exposure to moderate hypoxia alters central and peripheral fatigue, and to test whether carbohydrate ingestion impacts fatigue characteristics, 12 trained runners completed 3 running trials lasting 1 h each at 65% of normoxic V̇O2max. The first trial was performed in normoxia

[Effect of hypoxia on carbohydrate metabolism in scorpion tissues].

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The levels of glycogen, glucose, lactate, as well the activities of ten enzymes of carbohydrates metabolism in brain, liver and white muscle of sea scorpion have been investigated. Metabolite concentrations didn't change in brain and the levels of glycogen and lactate were constant in the rest

Carbohydrate ingestion improves oxygen delivery in acute hypoxia.

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It is generally accepted that an increase in blood CO(2) increases ventilation. We also know that during carbohydrate metabolism a larger amount of CO(2) is produced than during metabolism of lipids or proteins. The aim of the present study was therefore to assess whether carbohydrate ingestion can

Baroreflex sensitivity in acute hypoxia and carbohydrate loading.

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Hypoxia decreases baroreflex sensitivity (BRS) and can be a sufficient cause for syncope in healthy individuals. Carbohydrate loading enhances efferent sympathetic activity, which affects cardiac contractility, heart rate and vascular resistance, the main determinants of blood pressure. Thus, in

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