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- W2990622123 abstract "Thioredoxin family proteins are key modulators of cellular redox regulation and have been linked to several physiological functions, including the cellular response to hypoxia–ischemia. During perinatal hypoxia–ischemia (PHI), the central nervous system is subjected to a fast decrease in O2 and nutrients with a subsequent reoxygenation that ultimately leads to the production of reactive species impairing physiological redox signaling. Particularly, the retina is one of the most affected tissues, due to its high oxygen consumption and exposure to light. One of the main consequences of PHI is retinopathy of prematurity, comprising changes in retinal neural and vascular development, with further compensatory mechanisms that can ultimately lead to retinal detachment and blindness. In this study, we have analyzed long-term changes that occur in the retina using two well established in vivo rat PHI models (perinatal asphyxia and carotid ligation model), as well as the ARPE-19 cell line that was exposed to hypoxia and reoxygenation. We observed significant changes in the protein levels of the cytosolic oxidoreductase thioredoxin 1 (Trx1) in both animal models and a cell model. Knock-down of Trx1 in ARPE-19 cells affected cell morphology, proliferation and the levels of specific differentiation markers. Administration of recombinant Trx1 decreased astrogliosis and improved delayed neurodevelopment in animals exposed to PHI. Taken together, our results suggest therapeutical implications for Trx1 in retinal damage induced by hypoxia–ischemia during birth." @default.
- W2990622123 created "2019-12-05" @default.
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- W2990622123 date "2020-01-01" @default.
- W2990622123 modified "2023-10-14" @default.
- W2990622123 title "Thioredoxin 1 Plays a Protective Role in Retinas Exposed to Perinatal Hypoxia–Ischemia" @default.
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- W2990622123 doi "https://doi.org/10.1016/j.neuroscience.2019.11.011" @default.
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