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Biochemical adaptation to environmental hypoxia
2018Chapter 8 explores mechanisms of hemoglobin adaptation to environmental hypoxia. Vertebrates living in hypoxic environments face the physiological challenge of optimizing the trade-off between oxygen loading at the respiratory surfaces and oxygen unloading in the tissue capillaries.
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Environmental Enrichment Improved Cognitive Performance in Mice under Normoxia and Hypoxia
2021The mammalian brain modulates its microvascular network to accommodate tissue energy demand in a process referred to as angioplasticity. There is an aging effect on cognitive function and adaptive responses to hypoxia. Hypoxia-induced angiogenesis is delayed in the aging mouse brain.
Kui Xu, Joseph C. LaManna, Sahej Bindra
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Nitrogen sources and Gulf hypoxia: potential for environmental credit trading [PDF]
Ecological Economics, 2005 A zone of hypoxic and anoxic waters has become a dominant feature of the northern Gulf of Mexico. Nitrogen draining into the Gulf from the Mississippi Basin has been identified as the primary source of the problem. Reducing nitrogen loads from point and nonpoint sources in the basin is the primary goal of an action plan developed to address the problem.
Ralph E. Heimlich +2 more
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Physiological Responses of Some Benthic Macroinvertebrates to Environmental Hypoxia
Journal of Environment and Human, 2014Global warming has a direct impact on the water body by increasing its surface water temperature. The increase in the kinetic energy of the water results in decrease in solubility of oxygen in the water and results to low dissolved oxygen. The waters of Lagos lagoon was studied between January, 2007 and December, 2008 to assess the impact of increased ...
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Effects of swimming and environmental hypoxia on coronary blood flow in rainbow trout
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1995Previous studies have suggested that trout cardiac performance is highly dependent on coronary blood flow during periods of increased activity or hypoxia. To examine the relationship between coronary perfusion and cardiac performance in swimming trout, cardiac output (Q), coronary blood flow (qcor), and dorsal aortic blood pressure were measured in ...
Michael Axelsson +2 more
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Biochimica et Biophysica Acta (BBA) - Enzymology, 1973
1. 1. An increase in the oxidation of succinate by hepatic mitochondria in rats exposed to hypoxia (O2-N2; 1:9, v/v) or hypobaria (0.5 atm) was observed which appears to be due to modification of the activity of the rate-limiting succinate dehydrogenase [succinate: (acceptor) oxidoreductase, EC 1.3.99.1].
Susheela, L, Ramasarma, T
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1. 1. An increase in the oxidation of succinate by hepatic mitochondria in rats exposed to hypoxia (O2-N2; 1:9, v/v) or hypobaria (0.5 atm) was observed which appears to be due to modification of the activity of the rate-limiting succinate dehydrogenase [succinate: (acceptor) oxidoreductase, EC 1.3.99.1].
Susheela, L, Ramasarma, T
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Environmental hypoxia affects osmotic and ionic regulation in freshwater midge-larvae
Journal of Insect Physiology, 1998The effect of anaerobic metabolism on the osmotic and ionic regulation of the extracellular fluid was examined. Larvae of three species, characterized by different hypoxia tolerance, were studied: Chaoborus crystallinus, Culex pipiens and Chironomus gr. plumosus.
Irene Zerbst-Boroffka, Frank Scholz
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The emerging role of hypoxia and environmental factors in inflammatory bowel disease
Toxicological SciencesAbstract Inflammatory bowel disease (IBD) is a chronic and debilitating disorder characterized by inflammation of the gastrointestinal tract. Despite extensive research, the exact cause of IBD remains unknown, hampering the development of effective therapies.
Luke B Villareal, Xiang Xue
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Behavioral Responses of Mosshead and Woolly Sculpins to Increasing Environmental Hypoxia
Copeia, 2003Behavioral responses of the rocky intertidal mosshead sculpin (Clinocottus globiceps) and woolly sculpin (Clinocottus analis) to increasing environmental hypoxia (low PO2) were observed in a seawater aquarium with a depth gradient. The experimental design allowed observation of the response of these animals to encroaching environmental hypoxia.
Joseph J. Cech, Jason V. Watters
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