Results 101 to 110 of about 34,730 (280)

STAT3-RXR-Nrf2 activates systemic redox and energy homeostasis upon steep decline in pO2 gradient

Redox Biology, 2018
Hypobaric hypoxia elicits several patho-physiological manifestations, some of which are known to be lethal. Among various molecular mechanisms proposed so far, perturbation in redox state due to imbalance between radical generation and antioxidant ...
Subhojit Paul, Anamika Gangwar, Kalpana Bhargava, Yasmin Ahmad   +3 more
doaj   +1 more source

Intracellular oxygen tension limits muscle contraction-induced change in muscle oxygen consumption under hypoxic conditions during Hb-free perfusion. [PDF]

, 2017
Under acute hypoxic conditions, the muscle oxygen uptake (mV˙O2) during exercise is reduced by the restriction in oxygen-supplied volume to the mitochondria within the peripheral tissue. This suggests the existence of a factor restricting the mV˙O2 under
Furuichi, Yasuro, Hashimoto, Takeshi, Iwase, Satoshi, Jue, Thomas, Masuda, Kazumi, Ojino, Minoru, Takakura, Hisashi, Yamada, Tatsuya   +7 more
core   +1 more source

Exercise‐related microRNAs in Caenorhabditis elegans regulate calcium homeostasis and mitochondrial dynamics: Conserved pathways, divergent microRNAs

The FEBS Journal, EarlyView.
Exercise‐related microRNAs cel‐miR‐249‐3p and cel‐miR‐77‐5p in C. elegans regulate lifespan, fitness, mitochondrial morphology and membrane potential. Although lacking direct mammalian orthologs, H2O2‐induced microRNAs mmu‐miR‐181a‐5p and mmu‐miR‐378a‐3p regulate myogenesis, autophagy, mitochondrial content and respiration in murine myoblasts ...
Qin Xia, Jiwang Tang, José C. Casas‐Martinez, Penglin Li, Maria Borja‐Gonzalez, Leo R Quinlan, Katarzyna Goljanek‐Whysall, Brian McDonagh   +7 more
wiley   +1 more source

Effects of exposure to altitude on neuropsychology aspects: a literature review [PDF]

, 2010
OBJECTIVE: Discuss the effects of altitude exposure on neuropsychological functions. METHOD: We have conducted a literature review using as source indexed articles at Pubmed in the period from 1921 to 2008, using the following key words: cognition and ...
Antunes, Hanna Karen Moreira, Lemos, Valdir de Aquino, Mello, Marco Tulio de, Prado, Juliana Martuscelli da Silva, Santos, Ronaldo Vagner Thomatieli dos, Tufik, Sergio   +5 more
core   +1 more source

Pangenome analysis reveals the genetic mechanism underlying high‐altitude adaptation in Qinghai–Xizang (Tibet) Plateau Rhododendron

Journal of Integrative Plant Biology, EarlyView.
Pan‐genome analysis reveals that high‐altitude Rhododendron species resist alpine cold stress by rapidly sensing and engaging the chilling response pathway and genes that directly and indirectly protect the plant from UV radiation. Heritable genomic features such as long terminal repeats contribute to the adaptive diversification of Rhododendron ...
Haoyang Zhou, Zhongping Xu, Fanhuang Zeng, Haiyu Sang, Zhenhua Liu, Miao Sun, Qiang Fu, Kaige Zhao, Daming Tan, Manzhu Bao, Shuangxia Jin, Xiuqun Liu   +11 more
wiley   +1 more source

Impact of Environmental Exposure on Infant Sleep : The Exposome Approach

Journal of Sleep Research, EarlyView.
This review explores how exposure to environmental pollutants during the first 1000 days of life may affect infant sleep. Evidence suggests potential links between chemical exposures and sleep disturbances, underscoring the need for more research on early‐life vulnerability and the impact of pollutants in air, diet, and breast milk.
Zeina Halbouty, Debora Tuka, Erwan Stephan‐Blanchard, Veronique Bach, Pierre Tourneux, Elodie Haraux, Karen Chardon   +6 more
wiley   +1 more source

Changes in labial capillary density on ascent to and descent from high altitude. [PDF]

, 2016
Present knowledge of how the microcirculation is altered by prolonged exposure to hypoxia at high altitude is incomplete and modification of existing analytical techniques may improve our knowledge considerably.
Coppel, J, Gilbert-Kawai, E, Grocott, M, Ince, C, Martin, D, Phillip, H   +5 more
core   +8 more sources

Post-exercise parasympathetic reactivation and sensibility to hypoxia [PDF]

, 2012
Introduction Exposure to hypoxia leads to several reactions of the organism, which try to compensate the reduced oxygen level in the blood. Acute response is characterized by an increase in pulmonary ventilation (Hypoxia Ventilatory Response, HVR) and in
Leuzinger, M.
core  

Optimizing Cycle Exercise Performance During Normobaric Hypoxia Exposure

, 2019
Introduction: The purpose of the present study was to examine whether implementing factors of OPTIMAL Theory: Enhanced Expectancies (EE), Autonomy Support (AS), and External Focus (EF) during a cycle exercise bout at a simulated altitude of 21,000 feet ...
Ugale, Cierra Brittany
core   +1 more source

Nocturnal Sleep Breathing Patterns in Healthy Adolescents Residing at Very High Altitudes in Bolivia

Journal of Sleep Research, EarlyView.
ABSTRACT Data on sleep and respiratory patterns among adolescents residing at very high altitude (> 3500 m) remain scarce, and altitude‐related physiological differences may influence these parameters. Studying adolescents at different very high altitudes is crucial, as subtle environmental variations could affect sleep‐related oxygenation and ...
Keaton Patterson, Santiago Ucrós Rodríguez, E. Nicolás Arancibia‐Levit, Fernanda Aliaga Raduan, José Antonio Viruez Soto, Max Gassmann, Silvia Ulrich, Michael Furian, Edith M. Schneider Gasser   +8 more
wiley   +1 more source