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- W1974800178 startingPage "25" @default.
- W1974800178 abstract "Excessive and sustained exposure to glutamate leads to injurious elevations of cytosolic calcium ([Ca(2+)]i), generation of reactive oxygen and nitrogen species (ROS, RNS), mitochondrial failure, mobilization of intracellular zinc ([Zn(2+)]i), and, ultimately, neuronal death. The relative contribution and temporal dynamics of the activation of these processes to promote the full development of excitotoxicity are still not completely understood. In this study, we exploited the unique features of nNOS positive neurons [nNOS (+)], a striatal subpopulation that is constitutively spared from NMDAR-dependent insults, and dissected NMDAR-driven [Ca(2+)]i, [Zn(2+)]i, ROS, and mitochondrial changes occurring in these neurons and the overall population of nNOS (-) striatal neurons. Comparing the two populations and employing pharmacological, biochemical, and single-cell imaging techniques, we show that [Zn(2+)]i mobilization acts as a critical intermediate in the cascade that links NMDAR-mediated ROS overproduction, mitochondrial failure, and [Ca(2+)]i deregulation to the production of neuronal damage. Results of this study may also provide the rationale for aiming at therapeutic agents that favor Zn(2+) homeostasis for the treatment of acute or chronic neurological conditions associated with excitotoxicity." @default.
- W1974800178 created "2016-06-24" @default.
- W1974800178 creator A5031328280 @default.
- W1974800178 creator A5058319971 @default.
- W1974800178 date "2015-09-01" @default.
- W1974800178 modified "2023-10-05" @default.
- W1974800178 title "Intracellular zinc is a critical intermediate in the excitotoxic cascade" @default.
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- W1974800178 doi "https://doi.org/10.1016/j.nbd.2015.04.010" @default.