Results 61 to 70 of about 182,191 (313)

Effect of High-Flow Oxygen on Exercise Performance in COPD Patients. Randomized Trial

Frontiers in Medicine, 2021
Background: High-flow oxygen therapy (HFOT) provides oxygen-enriched, humidified, and heated air at high flow rates via nasal cannula. It could be an alternative to low-flow oxygen therapy (LFOT) which is commonly used by patients with chronic ...
Konstantinos Bitos, Konstantinos Bitos, Konstantinos Bitos, Michael Furian, Michael Furian, Michael Furian, Laura Mayer, Laura Mayer, Laura Mayer, Simon R. Schneider, Simon R. Schneider, Simon R. Schneider, Simone Buenzli, Simone Buenzli, Simone Buenzli, Maamed Z. Mademilov, Maamed Z. Mademilov, Maamed Z. Mademilov, Ulan U. Sheraliev, Ulan U. Sheraliev, Ulan U. Sheraliev, Nuridin H. Marazhapov, Nuridin H. Marazhapov, Nuridin H. Marazhapov, Ainura K. Abdraeva, Ainura K. Abdraeva, Ainura K. Abdraeva, Shoira D. Aidaralieva, Shoira D. Aidaralieva, Shoira D. Aidaralieva, Aybermet M. Muratbekova, Aybermet M. Muratbekova, Aybermet M. Muratbekova, Talant M. Sooronbaev, Talant M. Sooronbaev, Talant M. Sooronbaev, Silvia Ulrich, Silvia Ulrich, Silvia Ulrich, Konrad E. Bloch, Konrad E. Bloch, Konrad E. Bloch   +41 more
doaj   +1 more source

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

Advanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao, Ruixue Nie, Hailu Fan, Tenzin Ngodroup, Li Zhu, Hongbin Pan, Bo Zhang, Hao Zhang   +7 more
wiley   +1 more source

Hypoxia Exacerbates Inflammatory Acute Lung Injury via the Toll-Like Receptor 4 Signaling Pathway

Frontiers in Immunology, 2018
Acute lung injury (ALI) is characterized by non-cardiogenic diffuse alveolar damage and often leads to a lethal consequence, particularly when hypoxia coexists.
Gang Wu, Gang Wu, Gang Xu, Gang Xu, De-Wei Chen, De-Wei Chen, Wen-Xiang Gao, Wen-Xiang Gao, Jian-Qiong Xiong, Hai-Ying Shen, Yu-Qi Gao, Yu-Qi Gao   +11 more
doaj   +1 more source

Comparison of Simulated High Altitude Pilot Effective Performance Time Between Habitual Smokers and Non-Smokers

, 2003
Smoking attenuates the amount of oxygen that diffuses from the lung tissue and oxygenates the blood (Guyton, 1996). High altitudes attenuate the oxygen available for transport to the blood.
James F. Fletcher, Fletcher, James F.
core   +1 more source

Introgressed Variation in TaMYB7‐A1 Drives Graded Dormancy and Climate‐Adaptive Pre‐Harvest Sprouting Resistance in Wheat

Advanced Science, EarlyView.
TaMYB7‐A1 directly activates TaABI5 to enhance ABA signaling and regulate ABA‐GA homeostasis, enforcing seed dormancy. Its superior allele, derived from wild einkorn introgression, harbors a MITE insertion that elevates expression and two amino acid substitutions that enhance transcriptional activity, collectively generating graded PHS resistance for ...
Hao Wang, Dongzhi Wang, Yafei Guo, Qi Zheng, Min Zhang, James Simmonds, Jian Hou, Xuemei Liu, Xuelei Lin, Xiaomin Bie, Xiansheng Zhang, Xiaohui Li, Yuan Chen, Xueyong Zhang, Cristobal Uauy, Fei Lu, Chengcai Chu, Zhixi Tian, Jun Xiao   +18 more
wiley   +1 more source

Identification of risk factors for heavy clinical burden in electrical workers of highlands: a cross-sectional study

Frontiers in Public Health
BackgroundAcute and chronic mountain sickness, resulting from maladaptation to high-altitude hypoxia, poses a great health concern. This study aimed to identify risk factors for heavy symptom-based clinical burden among high-altitude electrical workers ...
Qingqing Su, Qingqing Su, Qinghua He, Yonglin Fu, Qiang Lin, Haiying Xian, Tingting Liu, Miao Li, Hao Wang, Hao Wang, Wenjin Sun, Wenjin Sun, Xuan Zhang, Xuan Zhang, Ling Chen, Ling Chen, Hui Yan, Hui Yan, Lei Chen, Lei Chen, Fengming Luo, Fengming Luo   +21 more
doaj   +1 more source

Adaptation to Living at High Altitude in Patients with COPD. Comparative Study of Exercise Capacity and Ventilatory Variables between Patients Residing at High and Low Altitudes in the Andes

González-García, Mauricio and Luis Ernesto Téllez. Adaptation to living at high altitude in patients with COPD. Comparative study of exercise capacity and ventilatory variables between patients residing at high and low altitudes in the Andes.
Téllez L.E., González-García M.
core   +1 more source

Achieving High‐Density and Stress‐Resilient Maize Breeding Via Germplasm Innovation

Advanced Science, EarlyView.
Global population growth and climate change have exacerbated the global food crisis. This perspective presents a conceptual framework focusing on enhancing population advantages. Several novel breeding objectives are proposed to improve density tolerance and stress resistance for yield improvement.
Xinlong Li, Yongqiang Chen, Dong Ding, Xuehai Zhang, Xuxiang Jia, Zhanhui Zhang, Yafei Wang, Weihua Li, Hui Zhang, Jihua Tang   +9 more
wiley   +1 more source

Effect of inhaled nitric oxide on oxygen-carrying capacity of red blood cells and hypoxia tolerance in mice

Di-san junyi daxue xuebao, 2019
Objective To study the effects of nitric oxide (NO) inhalation on oxygen-carrying capacity of red blood cells and hypoxia tolerance in mice. Methods Peripheral blood from 8-week-old male mice was exposed to nitrogen gas containing NO in an oxygenation ...
SU Wenting, CUI Yu, LI Xiaoxu, GUAN Libin   +3 more
doaj   +1 more source

Covalent Bonds Reinforced Strength and Modulus of Heterocyclic Aramid Fiber by Interfacial Aminated‐MXene Nanosheets

Advanced Science, EarlyView.
We demonstrate the covalent bonds strategy to enhance the mechanical property of PBIA fiber by using interfacial MXene‐NH2 nanosheets. The MXene‐NH2 nanosheets with reactive amino sites that can serve as nucleating agents and chain anchors to enhance orientation, crystallinity and interchain interaction of PBIA fiber via strong interfacial amido ...
Boyuan Chen, Hansheng Liu, Weiheng Kong, Ke Han, Jing Fang, Xingjiang Wu, Jianhong Xu, Hao Li   +7 more
wiley   +1 more source