Results 31 to 40 of about 1,553,027 (326)

Oxygen battle in the gut: Hypoxia and hypoxia-inducible factors in metabolic and inflammatory responses in the intestine

open access: yesJournal of Biological Chemistry, 2020
The gastrointestinal tract is a highly proliferative and regenerative tissue. The intestine also harbors a large and diverse microbial population collectively called the gut microbiome (microbiota).
Rashi Singhal, Y. Shah
semanticscholar   +1 more source

Hypoxia Signaling Pathway in Stem Cell Regulation: Good and Evil [PDF]

open access: yes, 2018
Purpose of Review: This review summarizes the role of hypoxia and hypoxia-inducible factors (HIFs) in the regulation of stem cell biology, specifically focusing on maintenance, differentiation, and stress responses in the context of several stem cell ...
Aljoufi, Arafat   +3 more
core   +1 more source

Hypoxia-Inducible Factor in Thyroid Carcinoma [PDF]

open access: yesJournal of Thyroid Research, 2011
Intratumoural hypoxia (low oxygen tension) is associated with aggressive disease and poor prognosis. Hypoxia-inducible factor-1 is a transcription factor activated by hypoxia that regulates the expression of genes that promote tumour cell survival, progression, metastasis, and resistance to chemo/radiotherapy.
Burrows, Natalie   +4 more
openaire   +3 more sources

Metabolic Regulation of Hypoxia-Inducible Factors in Hypothalamus

open access: yesFrontiers in Endocrinology, 2021
The earliest hypoxia-inducible factor (HIF) function was to respond to hypoxia or hypoxic conditions as a transcription factor. Recent studies have expanded our understanding of HIF, and a large amount of evidence indicates that HIF has an essential ...
Dan Du   +4 more
doaj   +1 more source

The tumour microenvironment links complement system dysregulation and hypoxic signalling. [PDF]

open access: yes, 2018
The complement system is an innate immune pathway typically thought of as part of the first line of defence against "non-self" species. In the context of cancer, complement has been described to have an active role in facilitating cancer-associated ...
Giaccia, Amato J   +4 more
core   +1 more source

Hypoxia-inducible factors in the kidney [PDF]

open access: yesAmerican Journal of Physiology-Renal Physiology, 2006
Tissue hypoxia not only occurs under pathological conditions but is also an important microenvironmental factor that is critical for normal embryonic development. Hypoxia-inducible factors HIF-1 and HIF-2 are oxygen-sensitive basic helix-loop-helix transcription factors, which regulate biological processes that facilitate both oxygen delivery and ...
openaire   +2 more sources

Hepatic hypoxia-inducible factor-2 down-regulates hepcidin expression in mice through an erythropoietin-mediated increase in erythropoiesis

open access: yesHaematologica, 2012
Background Iron metabolism, regulated by the iron hormone hepcidin, and oxygen homeostasis, dependent on hypoxia-inducible factors, are strongly interconnected.
Maria Mastrogiannaki   +6 more
doaj   +1 more source

Functional Repercussions of Hypoxia-Inducible Factor-2α in Idiopathic Pulmonary Fibrosis

open access: yesCells, 2022
Hypoxia and hypoxia-inducible factors (HIFs) are essential in regulating several cellular processes, such as survival, differentiation, and the cell cycle; this adaptation is orchestrated in a complex way.
Ana Karen Torres-Soria   +14 more
doaj   +1 more source

Plasma from Volunteers Breathing Helium Reduces Hypoxia-Induced Cell Damage in Human Endothelial Cells-Mechanisms of Remote Protection Against Hypoxia by Helium. [PDF]

open access: yes, 2019
PurposeRemote ischemic preconditioning protects peripheral organs against prolonged ischemia/reperfusion injury via circulating protective factors. Preconditioning with helium protected healthy volunteers against postischemic endothelial dysfunction.
Augustijn, Quinten JJ   +7 more
core   +1 more source

SnapShot: Hypoxia-Inducible Factors

open access: yesCell, 2015
Molecular oxygen (O2) is a key substrate for mitochondrial ATP production and numerous intracellular biochemical reactions. The maintenance of O2 homeostasis is therefore essential for the survival of most species. During O2 deprivation, mammalian cells rely on multiple adaptations mediated by the hypoxia-inducible factors (HIFs), mTOR, autophagy, and ...
Lee, Kyoung Eun, Simon, M. Celeste
openaire   +2 more sources

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