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Title: Chlorinative stress: An under appreciated mediator of neurodegeneration?
Authors: Yap, Y.W. 
Whiteman, M. 
Cheung, N.S. 
Keywords: Cell death
Oxidative stress
Issue Date: 2007
Citation: Yap, Y.W., Whiteman, M., Cheung, N.S. (2007). Chlorinative stress: An under appreciated mediator of neurodegeneration?. Cellular Signalling 19 (2) : 219-228. ScholarBank@NUS Repository.
Abstract: Oxidative stress has been implicated as playing a role in neurodegenerative disorders, such as ischemic stroke, Alzheimer's, Huntington's, and Parkinson's disease. Persuasive evidences have shown that microglial-mediated oxidative stress contributes significantly to cell loss and accompanying cognitive decline characteristic of the diseases. Based on the facts that (i) levels of catalytically active myeloperoxidase are elevated in diseased brains and (ii) myeloperoxidase polymorphism is associated with the risk of developing neurodegenerative disorders, HOCl as a major oxidant produced by activated phagocytes in the presence of myeloperoxidase is therefore suggested to be involved in neurodegeneration. Its association with neurodegeneration is further showed by elevated level of 3-chlorotyrosine (bio-marker of HOCl in vivo) in affected brain regions as well as HOCl scavenging ability of neuroprotectants, desferrioxamine and uric acid. In this review, we will summary the current understanding concerning the association of HOCl and neuronal cell death where production of HOCl will lead to further formation of reactive nitrogen and oxygen species. In addition, HOCl also causes tissue destruction and cellular damage leading cell death. © 2006.
Source Title: Cellular Signalling
ISSN: 08986568
DOI: 10.1016/j.cellsig.2006.06.013
Appears in Collections:Staff Publications

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