Results 81 to 90 of about 4,650,121 (384)

Vasopressin and oxytocin release during prolonged environmental hypoxia in the rat [PDF]

Thorax, 1997
The mechanism causing peripheral oedema in hypoxaemic chronic obstructive pulmonary disease has not been established. Vasopressin, a powerful antidiuretic hormone involved in salt and water homeostasis, is released in response to acute hypoxia. However, the effect of prolonged hypoxaemia on hypothalamic and pituitary release of the magnocellular ...
H, Kelestimur, R M, Leach, J P, Ward, M L, Forsling   +3 more
openaire   +2 more sources

Caudwell Xtreme Everest: A prospective study of the effects of environmental hypoxia on cognitive functioning

PLoS ONE, 2017
Background The neuropsychological consequences of exposure to environmental hypobaric hypoxia (EHH) remain unclear. We thus investigated them in a large group of healthy volunteers who trekked to Mount Everest base camp (5,300 m).
K. Griva, J. Stygall, Mark H. Wilson, D. Martin, D. Levett, K. Mitchell, M. Mythen, H. Montgomery, M. Grocott, G. Aref-Adib, M. Edsell, T. Plant, C. Imray, D. Cooke, J. Harrington, M. Khosravi, S. Newman   +16 more
semanticscholar   +1 more source

Hypoxia-Inducible Factors Signaling in Osteogenesis and Skeletal Repair

International Journal of Molecular Sciences, 2022
Sufficient oxygen is required to maintain normal cellular and physiological function, such as a creature’s development, breeding, and homeostasis. Lately, some researchers have reported that both pathological hypoxia and environmental hypoxia might ...
Qiuyue Qin, Yiping Liu, Zhen Yang, Maierhaba Aimaijiang, R. Ma, Yixin Yang, Yidi Zhang, Yanmin Zhou   +7 more
semanticscholar   +1 more source

Acid-base regulation in the toad Bufo marinus during environmental hypoxia [PDF]

Respiration Physiology, 1991
Gas exchange and the correlated changes in blood and tissue metabolic and acid-base status were investigated during long term exposure of the toad Bufo marinus to graded levels of hypoxia. During hypoxia, PCO2 values in blood and tissues fell, leading to a transient alkalosis in the extracellular but not in the intracellular space. A reduction in blood
Pörtner, Hans-Otto, MacLatchy, L. M., Toews, D. P.   +2 more
openaire   +3 more sources

Fleet behavior is responsive to a large-scale environmental disturbance: Hypoxia effects on the spatial dynamics of the northern Gulf of Mexico shrimp fishery

PLoS ONE, 2017
The northwestern Gulf of Mexico shelf experiences one of the largest seasonal hypoxic zones in the western hemisphere. Hypoxia (dissolved oxygen, DO ≤ 2.0 mg·L-1) is most severe from May to August during the height of the Gulf shrimp fishery, but its ...
Kevin M. Purcell, J. Craig, J. Nance, Martin D. Smith, Lori S. Bennear   +4 more
semanticscholar   +1 more source

Genetic and immune changes in Tibetan high-altitude populations contribute to biological adaptation to hypoxia

Environmental Health and Preventive Medicine, 2022
Background Tibetans have lived at very high altitudes for thousands of years, and have a distinctive suite of physiological traits that enable them to tolerate environmental hypoxia.
J. Bai, Lijuan Li, Yanhong Li, Lian-sheng Zhang   +3 more
semanticscholar   +1 more source

Predicting the effects of coastal hypoxia on vital rates of the planktonic copepod Acartia tonsa Dana. [PDF]

PLoS ONE, 2013
We describe a model predicting the effects of low environmental oxygen on vital rates (egg production, somatic growth, and mortality) of the coastal planktonic copepod Acartia tonsa.
David T Elliott, James J Pierson, Michael R Roman   +2 more
doaj   +1 more source

Hypoxia Stress Induces Tissue Damage, Immune Defense, and Oxygen Transport Change in Gill of Silver Carp (Hypophthalmichthys molitrix): Evaluation on Hypoxia by Using Transcriptomics

Frontiers in Marine Science, 2022
The silver carp (Hypophthalmichthys molitrix) is an economically, as well as environmentally, important fish that harbors low environmental hypoxia tolerance and frequently contributes to a loss of aquaculture productivity.
Xiaohui Li, Chen Ling, Qiaoxing Wang, Cui-Cui Feng, Xiang-zhong Luo, Hang Sha, Guoyu He, Gui-Hua Zou, Hongwei Liang   +8 more
semanticscholar   +1 more source

Video classification of hypoxic habitats and benthic communities in two productive freshwater embayments

Ecological Indicators
Ongoing anthropogenic eutrophication and warming temperatures are expected to increase the extent and severity of hypoxia globally. Monitoring hypoxia has traditionally relied on costly surveys or sensor networks.
Lyubov E. Burlakova, Alexander Y. Karatayev, Susan E. Daniel, Justin R. Meyer, Tomas O. Höök, Sarah Lawhun, Kelly L. Bowen, Warren J.S. Currie, Paris D. Collingsworth   +8 more
doaj   +1 more source

Hypoxia and low temperature upregulate transferrin to induce hypercoagulability at high altitude

Blood, 2022
Key Points • Harmful environmental factors at high altitude upregulate transferrin, which induces hypercoagulability and thromboembolic events.• Transferrin interference may provide a promising strategy for the treatment of high altitude–induced ...
Meiquan Li, Xiaopeng Tang, Zhiyi Liao, Chuanbin Shen, Ruomei Cheng, Mingqian Fang, Gan Wang, Ya Li, Shuzhen Tang, Liqiu Xie, Zhiye Zhang, P. Kamau, James Mwangi, Qiumin Lu, Yaxiong Li, Yuming Wang, Daniel T. MacKeigan, Eric G. Cerenzia, H. Ni, Ren Lai   +19 more
semanticscholar   +1 more source