Results 271 to 280 of about 2,849,596 (321)
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Effect of Flying at High Altitude on Early Exposure of Paracetamol in Humans
Drug Research, 2018AbstractPharmacokinetics of paracetamol (APAP) was studied on-board during an air flight and compared to those on ground after 500 mg oral dose in 20 healthy human volunteer in parallel design study. Saliva samples were obtained every 15 min up to 2 h after dosing.
Nasir Idkaidek, Ahmad Al-Ghazawi
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Effect of high altitude on the visual evoked responses in humans on Mt. Everest
Neurosurgery, 1987Cerebral visual evoked potentials (VEPs) were collected over a 1-year period from the summer of 1983 through the summer of 1984 from 16 members of the American Ultima Thule Everest Expedition at sea level and at altitudes of 7,100 ft, 16,800 ft, and 21,300 ft.
W. B. Blackett +4 more
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Effect of high altitude (14,100 Ft.) on nitrogenous components of human serum
Metabolism, 1968Abstract Serum free amino acids and nitrogenous metabolites were measured in 8 male subjects exposed to a high altitude of 14,100 feet for 14 days. The ratio of total essential amino acids to total nonessential amino acids was decreased at altitude. Glutamic acid increased and leucine, lysine, valine and threonine decreased significantly at altitude.
George J. Klain +3 more
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The effect of high altitude on the protein composition of human blood
Bulletin of Experimental Biology and Medicine, 1961Twelve healthy young individuals had the protein composition of their blood determined in Stalinabad (850 m) and during their sojourn in the mountain of East Pamir between the months of May and October, 1958, at the altitude of 4200 m.
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Effect of 2 Hours' Exposure to Simulated High Altitude (4,500 m) on Human Red Cell Metabolism
Scandinavian Journal of Clinical and Laboratory Investigation, 1972During acute exposure to high altitude (2 hours) the red cell metabolism is altered. A pH-induced increase in phosphofructokinase activity together with a decrease in the level of the monophosphoglycerates are the most prominent features of the changes. Despite the increase in pH, the level of 2,3-diphos-phoglycerate is not altered, probably because of
Susan F. Nygaard +4 more
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Mimic effects of high altitude to stun chickens humanely
New Scientist, 2013A new way of knocking chickens out before they are killed may provide broiler chickens with a more humane ...
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Scandinavian Journal of Clinical and Laboratory Investigation, 1972
The effect of exposure to simulated high altitude (4,500 m) on the concentration of 2,3-diphosphoglycerate (2,3-DPG) and adenosine triphosphate (ATP) in the red cell and the oxygen affinity of hemoglobin (P50) (measured at PCO2=40 mm Hg and corrected to plasma pH=7.40) was studied.
M. Rörth +2 more
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The effect of exposure to simulated high altitude (4,500 m) on the concentration of 2,3-diphosphoglycerate (2,3-DPG) and adenosine triphosphate (ATP) in the red cell and the oxygen affinity of hemoglobin (P50) (measured at PCO2=40 mm Hg and corrected to plasma pH=7.40) was studied.
M. Rörth +2 more
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[The effect of high altitude on human color perception].
Sheng li xue bao : [Acta physiologica Sinica], 2020Exposure to a high altitude hypoxia environment has significant negative effects on human central nervous system. Many previous studies have explored the influence of the high altitude environment on human color perception in a simulated high altitude environment or in an environment acutely exposed to high altitude, but little has been done in ...
Zhi-Xin, Wang +2 more
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International Journal of Environmental Studies, 1983
Studies have been carried out on erythrocyte membrane‐bound ATPases of ten female subjects at a moderate altitude (2200 m) and at a high altitude (5100 m). Mg2+‐ATPase activity of the subjects was found to be significantly stimulated under conditions at a high altitude in comparison to that at a moderate altitude.
R. C. Ray +3 more
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Studies have been carried out on erythrocyte membrane‐bound ATPases of ten female subjects at a moderate altitude (2200 m) and at a high altitude (5100 m). Mg2+‐ATPase activity of the subjects was found to be significantly stimulated under conditions at a high altitude in comparison to that at a moderate altitude.
R. C. Ray +3 more
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The effects of physical exercise at high altitude on adrenocortical function in humans.
Functional neurology, 1997The combined effects of sustained physical activity and hypoxia on adrenocortical function were investigated in 14 healthy volunteers, 8 males and 6 females (mean age 40.9 +/- 3.3 years), during a scientific expedition in the Himalayas. Plasma cortisol levels were measured in all subjects in basal conditions and after the administration of 1 mg ...
Martignoni, E +5 more
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