Results 61 to 70 of about 1,127,805 (351)

Research progress of orexin on the regulation of cardiovascular activities [PDF]

open access: yesJichu yixue yu linchuang, 2023
Orexin(OX) is a neuropeptide mainly released by the hypothalamus. In the central nervous system, orexin neurons form extensive connections with other neuronal nuclei and participate in energy metabolism, sleep cycle and cardiovascular activity regulation.
ZHU Minxia
doaj   +1 more source

Placental growth factor inhibition modulates the interplay between hypoxia and unfolded protein response in hepatocellular carcinoma [PDF]

open access: yes, 2016
Background: Hepatocellular carcinoma (HCC) is a leading cause of cancer-related mortality. We previously showed that the inhibition of placental growth factor (PlGF) exerts antitumour effects and induces vessel normalisation, possibly reducing hypoxia ...
Bogaerts, Eliene   +13 more
core   +1 more source

The Effect of Hypoxia on the Expression of CXC Chemokines and CXC Chemokine Receptors—A Review of Literature

open access: yesInternational Journal of Molecular Sciences, 2021
Hypoxia is an integral component of the tumor microenvironment. Either as chronic or cycling hypoxia, it exerts a similar effect on cancer processes by activating hypoxia-inducible factor-1 (HIF-1) and nuclear factor (NF-κB), with cycling hypoxia showing
J. Korbecki   +7 more
semanticscholar   +1 more source

Normobaric hypoxia overnight impairs cognitive reaction time

open access: yesBMC 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   +6 more
doaj   +1 more source

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

open access: yesPulmonary 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

Intermittent Hypoxia Rewires the Liver Transcriptome and Fires up Fatty Acids Usage for Mitochondrial Respiration

open access: yesFrontiers in Medicine, 2022
Sleep Apnea Syndrome (SAS) is one of the most common chronic diseases, affecting nearly one billion people worldwide. The repetitive occurrence of abnormal respiratory events generates cyclical desaturation-reoxygenation sequences known as intermittent ...
Jonathan Gaucher   +19 more
doaj   +1 more source

The bacillary and macrophage response to hypoxia in tuberculosis and the consequences for T cell antigen recognition [PDF]

open access: yes, 2016
M. tuberculosis is a facultative anaerobe and its characteristic pathological hallmark, the granuloma, exhibits hypoxia in humans and in most experimental models. Thus the host and bacillary adaptation to hypoxia is of central importance in understanding
Barry III, CE   +5 more
core   +1 more source

Hypoxia. 2. Hypoxia regulates cellular metabolism

open access: yesAmerican Journal of Physiology-Cell Physiology, 2011
Adaptation to lowering oxygen levels (hypoxia) requires coordinated downregulation of metabolic demand and supply to prevent a mismatch in ATP utilization and production that might culminate in a bioenergetic collapse. Hypoxia diminishes ATP utilization by downregulating protein translation and the activity of the Na-K-ATPase.
William W, Wheaton, Navdeep S, Chandel
openaire   +3 more sources

Hypoxia Produces Pro-arrhythmic Late Sodium Current in Cardiac Myocytes by SUMOylation of NaV1.5 Channels. [PDF]

open access: yes, 2020
Acute cardiac hypoxia produces life-threatening elevations in late sodium current (ILATE) in the human heart. Here, we show the underlying mechanism: hypoxia induces rapid SUMOylation of NaV1.5 channels so they reopen when normally inactive, late in the ...
Dai, Hui   +4 more
core  

Ventilatory Phenotypes among Four Strains of Adult Rats. [PDF]

open access: yes, 2002
Our purpose in this study was to identify different ventilatory phenotypes among four different strains of rats. We examined 114 rats from three in-house, inbred strains and one outbred strain: Brown Norway (BN;n = 26), Dahl salt-sensitive (n = 24), Fawn-
Dwinell, Melinda R.   +4 more
core   +2 more sources

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