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• W2893630265 abstract "Huntington's disease (HD) is a monogenic, progressive, neurodegenerative disorder with currently no available treatment. The Libechov transgenic minipig model for HD (TgHD) displays neuroanatomical similarities to humans and exhibits slow disease progression and therefore more powerful compared to available mouse models for the development of therapy. The phenotypic characterization of this model is still ongoing, and it is essential to validate biomarkers to monitor disease progression and intervention. In this study, the behavioral phenotype (cognitive, motor and behavior) of the TgHD model was assessed along with biomarkers for mitochondrial capacity, oxidative stress, DNA integrity and DNA repair at different ages (24, 36 and 48 months) and compared with age-matched controls. The TgHD minipigs showed progressive accumulation of the mutant huntingtin (mHTT) fragment in brain tissue and exhibited locomotor functional decline at 48 months. Interestingly, this neuropathology progressed without any significant age-dependent changes in any of the other biomarkers assessed. Rather, we observed genotype-specific effects on mitochondrial DNA (mtDNA) damage, mtDNA copy number, 8-oxoguanine DNA glycosylase activity and global level of the epigenetic marker 5-methylcytosine that we believe is indicative of a metabolic alteration that manifests in progressive neuropathology. Peripheral mononuclear blood cells (PBMCs) were relatively spared in the TgHD minipig, probably due to the lack of detectable mHTT. Our data demonstrate that neuropathology in the TgHD model has an age of onset at 48 months, and that oxidative damage and electron transport chain impairment represent later states of the disease that is not optimal for assessing interventions." @default.
• W2893630265 created "2018-10-05" @default.
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• W2893630265 date "2018-01-01" @default.
• W2893630265 modified "2023-10-13" @default.
• W2893630265 title "A transgenic minipig model of Huntington's disease shows early signs of behavioral and molecular pathologies" @default.
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• W2893630265 doi "https://doi.org/10.1242/dmm.035949" @default.
• W2893630265 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6215428" @default.
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• W2893630265 hasPublicationYear "2018" @default.
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