altitude sickness/glutathione

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[Lipid peroxidation, peroxidase activity and glutathione antiperoxide systems in rat tissues under conditions of high altitude hypoxia].

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The content of lipid peroxides in rat tissues does not vary essentially under conditions of high altitude hypoxia. The peroxidase activity undergoes fluctuating changes with a significant increase in brain tissues. Among the enzymes of the glutathione antiperoxide system only the glutathione

[Glutathione S-transferase M1, T1 genotypes and the risk of mountain sickness].

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OBJECTIVE To explore the relationship between genetic polymorphisms of glutathione S-transferase (GST) M1, T1 and susceptibility to mountain sickness. METHODS Forty-three soldiers with acute mountain sickness and 80 healthy soldiers matching with sex/age and training under the same condition were

EFFECT OF POMEGRANATE (Punica granatum L) JUICE ON CHANGES IN TISSUE GLUTATHIONE LEVELS OF RATS EXPOSED TO HIGH ALTITUDE HYPOXIA.

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Oxidative stress due to excessive production of free radicals in living organisms during exposure to hypobaric hypoxia is well documented. In search of a suitable antioxidant from natural sources, in the present study effect of pomegranate (Punica granatum, family Punicaceae) juice (PG) was

The antioxidative effect of a novel free radical scavenger 4'-hydroxyl-2-substituted phenylnitronyl nitroxide in acute high-altitude hypoxia mice.

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Acute mountain sickness is caused by sub-acute hypoxia in healthy individuals going rapidly to altitude. Both tissue hypoxia in vitro and whole-body hypoxia in vivo have been found to promote the release of reactive oxygen species. Nitronyl nitroxide can trap free radicals such as ·NO or ·OH, and

Salidroside promotes erythropoiesis and protects erythroblasts against oxidative stress by up-regulating glutathione peroxidase and thioredoxin.

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BACKGROUND Rhodiola rosea is commonly used in China and Tibet folk medicine for the treatment of high altitude sickness, anoxia and mountain malhypoxia. OBJECTIVE Salidroside (SDS) is an active ingredient of Rhodiola rosea. This study attempted to examine the potential erythropoiesis-stimulating and

[A study on the relationship between glutathione S-transferases gene polymorphism and susceptibility response to hypoxia].

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OBJECTIVE To investigate the relationship between glutathione S-transferases gene polymorphism and susceptibility response to hypoxia. METHODS In the case-control study, the gene polymorphisms of glutathione S-transferases were tested in Tibetan mountaineers and sea-level Han Chinese by multiple-PCR

Effect of high altitude (7,620 m) exposure on glutathione and related metabolism in rats.

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Reduced and oxidised glutathione (GSH and GSSG) contents, and glutathione reductase, and glutathione S-transferase activities were studied in the livers, muscles, and blood/erythrocytes of male Sprague-Dawley rats exposed to intermittent hypoxia (6 h.day-1) at a simulated altitude of 7,620 m for 1,

Investigation of the Hepato-Protective Effects of Imdur in a Rat Model of Chronic Mountain Sickness.

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BACKGROUND The objective of this study was to determine if the clinical nitrate, Imdur, has a hepato-protective effect in chronic mountain sickness (CMS). METHODS A total of 60 SD rats were included in the study. Fifty rats were used to model CMS and were randomly divided into the following groups

Exploratory proteomic analysis of hypobaric hypoxia and acute mountain sickness in humans.

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Our objective in this exploratory study was to identify novel biomarkers of importance for acute mountain sickness (AMS) using discovery-based proteomic methods. Peripheral blood samples were collected and AMS symptoms were assessed in 20 healthy volunteers prior to [-15 h (baseline) and 0 h; 1,609

Anti-hypoxia Activity of the Novel NO Donor Acetyl Ferulic Isosorbide Mononitrate in Acute High-Altitude Hypoxia Mice.

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Nitric oxide (NO) may act as either a pro-oxidant or an antioxidant in biological systems. Previous work has found inhalation of NO improved survival in a high altitude rat model. NO donor isosorbide mononitrate derivants might have a protective effect against hypoxia. We synthesized a series of

Cognitive Protective Mechanism of Crocin Pretreatment in Rat Submitted to Acute High-Altitude Hypoxia Exposure

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Inadequate oxygen availability at high altitude leads to oxidative stress, resulting in hippocampal neurodegeneration and memory impairment. In our previous study, we found that the cognitive dysfunction occurred when male SD rat was rapidly exposed to 4200 m of high altitude for 3 days. And we also

AltitudeOmics: Red Blood Cell Metabolic Adaptation to High Altitude Hypoxia.

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Red blood cells (RBCs) are key players in systemic oxygen transport. RBCs respond to in vitro hypoxia through the so-called oxygen-dependent metabolic regulation, which involves the competitive binding of deoxyhemoglobin and glycolytic enzymes to the N-terminal cytosolic domain of band 3. This

Red blood cells in hemorrhagic shock: a critical role for glutaminolysis in fueling alanine transamination in rats.

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Red blood cells (RBCs) are the most abundant host cell in the human body and play a critical role in oxygen transport and systemic metabolic homeostasis. Hypoxic metabolic reprogramming of RBCs in response to high-altitude hypoxia or anaerobic storage in the blood bank has been extensively

Alteration of predominant gastrointestinal flora and oxidative damage of large intestine under simulated hypobaric hypoxia.

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Hypobaric hypoxia is an immediate and crucial starting mechanism of acute mountain sickness included with some non-specific gastrointestinal (GI) complications. To study the effect of hypoxia on GI microflora and its upshot to this system, male albino rats were exposed to 55 kPa (air pressure ~

Divergent Mitochondrial Antioxidant Activities and Lung Alveolar Architecture in the Lungs of Rats and Mice at High Altitude.

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Compared with mice, adult rats living at 3,600 m above sea level (SL-La Paz, Bolivia) have high hematocrit, signs of pulmonary hypertension, and low lung volume with reduced alveolar surface area. This phenotype is associated with chronic mountain sickness in humans living at high altitude (HA). We

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