Results 71 to 80 of about 34,892 (283)
Convergent Genomic Signatures of High-Altitude Adaptation among Six Independently Evolved Mammals
Animals, 2022 The species living in the Qinghai-Tibet Plateau provide an excellent model system for studying the relationship between molecular convergent evolution and adaptation.
Tianshu Lyu +6 more
doaj +1 more source
Hypoxia-Induced Oxidative Stress Modulation with Physical Activity. [PDF]
, 2017 Increased oxidative stress, defined as an imbalance between prooxidants and antioxidants, resulting in molecular damage and disruption of redox signaling, is associated with numerous pathophysiological processes and known to exacerbate chronic diseases ...
Debevec, T., Millet, G.P., Pialoux, V.
core +3 more sources
Respirology, EarlyView.Pulmonary arterial baroreceptors reflexively stimulate sympathetic nerve activity (SNA) in response to elevated pulmonary artery pressure and distension. In pulmonary hypertension patients, changes in muscle SNA were proportional to changes in pulmonary haemodynamics following nebulised iloprost.
Michael J. Plunkett +6 more
wiley +1 more source
Frontiers in Public HealthBackgroundThe Tibetan population residing in high-altitude (HA) regions has adapted to extreme hypoxic environments. However, there is limited understanding of the genetic basis of body compositions in Tibetan population adapted to HA.MethodsWe performed
Xuguang Li +26 more
doaj +1 more source
Extended longevity at high altitude: Benefits of exposure to chronic hypoxia
BLDE University Journal of Health Sciences, 2017 BACKGROUND: Acute exposure to hypobaric hypoxia can give rise to acute mountain sickness, and rarely, high altitude pulmonary edema, and high altitude cerebral edema. However, with gradual adaptation to “chronic hypoxia”, following the Adaptation to High
Gustavo R Zubieta-Calleja +1 more
doaj +1 more source
Hypoxic training increases maximal oxygen consumption in Thoroughbred horses well-trained in normoxia. [PDF]
, 2017 Hypoxic training is effective for improving athletic performance in humans. It increases maximal oxygen consumption (V̇O2max) more than normoxic training in untrained horses. However, the effects of hypoxic training on well-trained horses are unclear. We
Jones, James H +4 more
core +1 more source
Transthoracic Electrical Impedance in Cases of High-altitude Hypoxia [PDF]
BMJ, 1974 Changes in transthoracic electrical impedance (T.E.I.) due to high-altitude hypoxia (3,658 m) have been measured in 20 young, healthy Indian soldiers. They were first studied at sea level (198 m) and then rapidly transported by air to 3,658 m, where they were studied daily from day 1 to day 5 and then on days 8 and 10. The mean (+/-S.D.) T.E.I.
S B, Roy +5 more
openaire +2 more sources
Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals
Integrative Zoology, EarlyView.This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley +1 more source
Design and conduct of Xtreme Everest 2: an observational cohort study of Sherpa and lowlander responses to graduated hypobaric hypoxia [PDF]
, 2015 Objective: oxygen availability falls with ascent to altitude and also as a consequence of critical illness. Because cellular sequelae and adaptive processes may be shared in both circumstances, high altitude exposure (‘physiological hypoxia’) assists in ...
Adams, Thomas +13 more
core +10 more sources
Integrative Zoology, EarlyView.Prenatal hypoxia enhances adult hypoxia tolerance in Brandt's voles, preserving cognitive and memory functions. Transcriptomic analysis reveals adaptive changes in energy metabolism, oxygen transport, and neuroprotective mechanisms, highlighting developmental plasticity.
Mengyang Li +5 more
wiley +1 more source