Results 41 to 50 of about 662,957 (307)

Rate of erythropoietin formation in humans in response to acute hypobaric hypoxia [PDF]

, 1989
This study was carried out to investigate the early changes in erythropoietin (EPO) formation in humans in response to hypoxia. Six volunteers were exposed to simulated altitudes of 3,000 and 4,000 m in a decompression chamber for 5.5 h. EPO was measured
Kurtz, Armin, E. A. Koller, Boutellier, U., Schopen, M., Bauer, Christian, A. Kurtz, C. Bauer, M. Schopen, Koller, E. A., Eckardt, Kai-Uwe, K. U. Eckardt, U. Boutellier, Eckardt KU, Bauer C, Boutellier U, Koller EA, Kurtz A, Schopen M   +17 more
core   +1 more source

Normobaric hypoxia overnight impairs cognitive reaction time

BMC Neuroscience, 2017
Background Impaired reaction time in patients suffering from hypoxia during sleep, caused by sleep breathing disorders, is a well-described phenomenon. High altitude sleep is known to induce periodic breathing with central apneas and oxygen desaturations,
Stephan Pramsohler, Stefan Wimmer, Martin Kopp, Hannes Gatterer, Martin Faulhaber, Martin Burtscher, Nikolaus Cristoph Netzer   +6 more
doaj   +1 more source

Experimental Models of Sarcopenia: Bridging Molecular Mechanism and Therapeutic Strategy

Cells, 2020
Sarcopenia has been defined as a progressive decline of skeletal muscle mass, strength, and functions in elderly people. It is accompanied by physical frailty, functional disability, falls, hospitalization, and mortality, and is becoming a major ...
Sakulrat Mankhong, Sujin Kim, Sohee Moon, Hyo-Bum Kwak, Dong-Ho Park, Ju-Hee Kang   +5 more
doaj   +1 more source

RhoA activation by hypoxia in pulmonary arterial smooth muscle cells is age and site specific [PDF]

, 2004
Hypoxia induces vasoconstriction of pulmonary arteries through contraction of smooth muscle cells (SMCs). The GTPase RhoA regulates smooth muscle contractility and actin cytoskeletal remodeling through the Rho-associated kinase ( ROCK).
Bailly, K, Ridley, A J, Haworth, SG, Ridley, AJ, Hall, SM, Hall, S M, Haworth, S G   +6 more
core   +1 more source

Dual role of the L-arginine–ADMA–NO pathway in systemic hypoxic vasodilation and pulmonary hypoxic vasoconstriction

Pulmonary Circulation, 2020
In healthy vascular endothelium, nitric oxide acts as a vasodilator paracrine mediator on adjacent smooth muscle cells. By activating soluble guanylyl cyclase, nitric oxide stimulates cyclic guanosine monophosphate (cGMP) which causes relaxation of ...
Rainer Böger, Juliane Hannemann
doaj   +1 more source

Modeling Thoracic Aortic Dissection Using Patient-Specific iPSCs Reveals VSMC Dysfunction and Extracellular Matrix Dysregulation

Stem Cells International
Thoracic aortic dissection (TAD) is a life-threatening condition characterized by medial degeneration and vascular smooth muscle cell (VSMC) dysfunction, with no effective medical therapy currently available. The underlying pathological mechanisms of TAD
Peifeng Jin, Yubin Xu, Sixian Wang, Lu Ding, Yuhao Chen, Miqi Zhou, Xiufang Chen, Xiaofang Fan, Yongsheng Gong, Ming Li, Yongyu Wang   +10 more
doaj   +1 more source

Beyond Pharmacology: The Biological Mechanisms of Remote Ischemic Conditioning in Cerebrovascular Disease

Biomolecules
Cerebrovascular diseases (CVDs), comprising predominantly ischemic stroke and chronic cerebral hypoperfusion (CCH), are a significant threat to global health, often leading to disability and mortality.
Linhui Qin, Fang Tong, Sijie Li, Changhong Ren   +3 more
doaj   +1 more source

Controls of Nuclear Factor-Kappa B Signaling Activity by 5’-AMP-Activated Protein Kinase Activation With Examples in Human Bladder Cancer Cells [PDF]

International Neurourology Journal, 2016
Generally, both lipopolysaccharide (LPS)- and hypoxia-induced nuclear factor kappa B (NF-κB) effects are alleviated through differential posttranslational modification of NF-κB phosphorylation after pretreatment with 5´-AMP-activated protein kinase (AMPK)
Bo-Hwa Choi, Da-Hyun Lee, Jin Kim, Ju-Hee Kang, Chang-Shin Park   +4 more
doaj   +1 more source

Limb Remote Ischemic Conditioning Promotes Neurogenesis after Cerebral Ischemia by Modulating miR-449b/Notch1 Pathway in Mice

Biomolecules, 2022
Neurogenesis plays an important role in the prognosis of stroke patients and is known to be promoted by the activation of the Notch1 signaling pathway. Studies on the airway epithelium have shown that miR-449b represses the Notch pathway. The study aimed
Sijie Li, Yong Yang, Ning Li, Haiyan Li, Jiali Xu, Wenbo Zhao, Xiaojie Wang, Linqing Ma, Chen Gao, Yuchuan Ding, Xunming Ji, Changhong Ren   +11 more
doaj   +1 more source

Association Between Individualized Education for Kidney Replacement Therapy Modality Selection and Peritoneal Dialysis Initiation: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) is an established home‐based kidney replacement therapy (KRT), but its uptake remains low in Japan. We evaluated whether individualized education in a dedicated outpatient clinic was associated with the initiation of PD.
Yasuko Ito, Ryuichi Yoshimura, Takaki Yamauchi, Yuta Funakoshi, Hirotaka Sonoda, Seiji Kobayashi, Hiroyuki Terawaki, Takafumi Ito   +7 more
wiley   +1 more source