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- W2092330708 abstract "6-Aminonicotinamide (6-AN) is a niacin antagonist, which leads to degeneration of gray-matter astrocytes followed by a vigorous inflammatory response. Macrophage colony stimulating factor (M-CSF) is important during inflammation, and in order to further clarify the roles for M-CSF in neurodegeneration and brain cell death, we have examined the effect of 6-AN on osteopetrotic mice with genetic M-CSF deficiency (op/op mice). The 6-AN-induced degeneration of gray-matter areas was comparable in control and op/op mice, but the numbers of reactive astrocytes, macrophages, and lymphocytes in the damaged areas were significantly decreased in op/op mice relative to controls. The levels of oxidative stress (as determined by using immunoreactivity for inducible nitric oxide synthase, nitrotyrosine, and malondialdehyde) and apoptotic cell death (as determined by using TUNEL and immunoreactivity for caspases and cytochrome c) were significantly increased in 6-AN-injected op/op mice relative to controls. From a number of antioxidant factors assayed, only metallothioneins I and II (MT-I+II) were decreased in op/op mice in comparison to controls. Thus, the present results indicate that M-CSF is an important growth factor for coping with 6-AN-induced central nervous system damage and suggest that MT-I+II are likely to have a significant role." @default.
- W2092330708 created "2016-06-24" @default.
- W2092330708 creator A5000952430 @default.
- W2092330708 creator A5030113409 @default.
- W2092330708 creator A5044214543 @default.
- W2092330708 creator A5055309337 @default.
- W2092330708 date "2002-08-01" @default.
- W2092330708 modified "2023-10-11" @default.
- W2092330708 title "RETRACTED: M-CSF Deficiency Leads to Reduced Metallothioneins I and II Expression and Increased Tissue Damage in the Brain Stem after 6-Aminonicotinamide Treatment" @default.
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- W2092330708 doi "https://doi.org/10.1006/exnr.2002.7968" @default.
- W2092330708 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12359172" @default.
- W2092330708 hasPublicationYear "2002" @default.