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  • Title: Minocycline treatment reduces white matter damage after excitotoxic striatal injury.
    Author: Guimarães JS, Freire MA, Lima RR, Picanço-Diniz CW, Pereira A, Gomes-Leal W.
    Journal: Brain Res; 2010 May 06; 1329():182-93. PubMed ID: 20226770.
    Abstract:
    We investigated the protective effects of minocycline following white matter damage (WMD) in the rat striatum. Excitotoxic lesions were induced by N-Methyl-d-Aspartate (NMDA) microinjections and caused striatal damage, concomitant with microglial/macrophage activation. The excitotoxic lesion both damaged oligodendrocytes (Tau-1(+) cells) and caused a decrease in tissue reactivity for myelin basic protein (MBP) after post-lesional day 3 (PLD). Treatment with the semi-synthetic tetracycline antibiotic minocycline, however, led to oligodendrocyte preservation and decreased myelin impairment. Taken together, these results suggest that white matter damage (WMD) is an important component of the physiopathology of acute striatal damage and that microglial/macrophage activation contributes to this pathological phenomenon.
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