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- W2079775458 abstract "Hypoxia, which occurs in the brain when oxygen availability drops below the normal level, is a major cause of perinatal hypoxic–ischemic injury (HII). The transcriptional factor hypoxia inducible factor-1 (HIF-1) is a key regulator in the pathophysiological response to the stress of hypoxia. Genes regulated by HIF-1 are involved in energy metabolism, erythropoiesis, angiogenesis, vasodilatation, cell survival and apoptosis. Compared with the adult brain, the neonatal brain is different in physiological structure, function, cellular composition and signaling pathway related gene activation and response after hypoxia. The purpose of this review is to determine if developmental susceptibility of the brain after hypoxic/ischemic injury is related to HIF-1α, which also plays a pivotal role in the normal brain development. HIF-1α regulates both prosurvival and prodeath responses in the neonatal brain and various mechanisms underlie the apparent contradictory effects, including duration of ischemic injury and severity, cell-types, and/or dependent on the nature of the stimulus after HII. Studies report an excessive induction of HIF-1 in the immature brain, which suggests that a cell death promoting role of HIF may prevail. Inhibition of HIF-1α and targeted activation of its prosurvival genes appear as a favorable therapeutic strategy. However, a better understanding of multifaceted HIF-1 function during brain development is required to explore potential targets for further therapeutic interventions in the neonate." @default.
- W2079775458 created "2016-06-24" @default.
- W2079775458 creator A5016467704 @default.
- W2079775458 creator A5018864580 @default.
- W2079775458 creator A5043442160 @default.
- W2079775458 creator A5054373762 @default.
- W2079775458 date "2009-03-01" @default.
- W2079775458 modified "2023-10-18" @default.
- W2079775458 title "Prodeath or prosurvival: Two facets of hypoxia inducible factor-1 in perinatal brain injury" @default.
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