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Activation of HIF-1α/VEGF-A pathway by deferoxamine ameliorates retinal hypoxia in a rat subarachnoid hemorrhage model
Conclusions Our findings suggest that modulating the application of deferoxamine may offer therapeutic approaches to alleviate retinal complications after SAH.
Source: NeuroReport - October 6, 2022 Category: Neurology Tags: Degeneration and Repair Source Type: research

Neutrophil Extracellular Traps Exacerbate Ischemic Brain Damage
AbstractMost acute strokes are ischemic, and subsequent neuroinflammation promotes further damage leading to cell death but also plays a beneficial role by promoting cellular repair. Neutrophils are forerunners to brain lesions after ischemic stroke and exert elaborate functions. While neutrophil extracellular traps (NETs) possess a fundamental antimicrobial function within the innate immune system under physiological circumstances, increasing evidence indicates that NETosis, the release process of NETs, occurs in the pathogenic process of stroke. In this review, we focus on the processes of NET formation and clearance, th...
Source: Molecular Neurobiology - November 8, 2021 Category: Neurology Source Type: research

Epigenetic regulators of neuronal ferroptosis identify novel therapeutics for neurological diseases: HDACs, transglutaminases, and HIF prolyl hydroxylases.
Abstract A major thrust of our laboratory has been to identify how physiological stress is transduced into transcriptional responses that feed back to overcome the inciting stress or its consequences, thereby fostering survival and repair. To this end, we have adopted the use of an in vitro model of ferroptosis, a caspase-independent, but iron-dependent form of cell death (Dixon et al., 2012; Ratan, 2020). In this review, we highlight three distinct epigenetic targets that have evolved from our studies and which have been validated in vivo studies. In the first section, we discuss our studies of broad, pan-selecti...
Source: Neurobiology of Disease - October 27, 2020 Category: Neurology Authors: Rroji O, Kumar A, Karuppagounder SS, Ratan RR Tags: Neurobiol Dis Source Type: research