Results 41 to 50 of about 642,296 (308)

Responses to hypoxia via mTOR : role in endothelial cell proliferation and HIF-1[alpha] stabilization [PDF]

open access: yes, 2005
Ischemic cardiovascular disease and cancer are life-threatening disorders in human mortality. Intensive studies on the etiology of and therapeutics for the diseases are ongoing.
Li, Weimin
core   +1 more source

Oxydative stress in type 2 diabetic patients: involvement of HIF-1 alpha AND mTOR genes expression [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2023
Biochemical and genetic mechanisms of oxidative stress (OS) developing in the blood of patients with type 2 Diabetes mellitus (T2DM) were studied. Twenty patients with T2DM and 10 healthy persons participated in this study.
Y. A. Saenko   +5 more
doaj   +1 more source

Establishment and characterization of human induced pluripotent stem cell line (WMUi020-A) from a patient with bicuspid aortic valve aortopathy

open access: yesStem Cell Research, 2021
A human induced pluripotent stem cell (hiPSC) line (WMUi020-A) was generated from the aortic smooth muscle cells of a 56-year-old donor with bicuspid aortic valve and ascending aortic aneurysm.
Li Dong   +9 more
doaj   +1 more source

Biology of Hypoxia [PDF]

open access: yesSeminars in Nuclear Medicine, 2015
There is an important and strong, but complex influence of the tumor microenvironment on tumor cells' phenotype, aggressiveness, and treatment sensitivity. One of the most frequent and best-studied aspects of the tumor microenvironment is hypoxia. Low oxygen tension often occurs in tumor cells by several mechanisms, for example, poor angiogenesis and ...
Span, P.N., Span, P.N., Bussink, J.
openaire   +3 more sources

Hypoxia helps glioma to fight therapy [PDF]

open access: yes, 2009
Despite major improvements in the surgical management the prognosis for patients bearing malignant gliomas is still dismal. Malignant gliomas are notoriously resistant to treatment and the survival time of patients is between 3-8 years for low-grade and
Amberger-Murphy, Verena   +1 more
core   +2 more sources

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

Triggering of erythropoietin production by hypoxia is inhibited by respiratory and metabolic acidosis [PDF]

open access: yes, 1990
Erythropoietin (EPO) production in response to hypoxic hypoxia is known to be attenuated by simultaneous hypercapnia. This study aimed to investigate whether this inhibitory effect of hypercapnia is 1) a direct effect of carbon dioxide or mediated by ...
Eckardt, K. U.   +5 more
core   +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

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

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

open access: yes, 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   +11 more
core   +1 more source

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