Neurosci Lett. 2010 Apr 12;473(3):182-5. Epub 2010 Feb 21.

SJLB mice develop tauopathy-induced parkinsonism.

Takenokuchi M, Kadoyama K, Chiba S, Sumida M, Matsuyama S, Saigo K, Taniguchi T.

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Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himeji, Hyogo 670-8524, Japan.

Abstract

Frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17) is an inherited dementia caused by tauopathy. Recently, we established the N279K mutant human tau transgenic mice SJLB. Although SJLB mice show cognitive dysfunction with insoluble tau in the brain, it has remained unclear whether they show signs of parkinsonism. To clarify this issue, we studied whether SJLB mice in fact develop parkinsonism. Behavioral analysis showed shorter stride length than that of non-transgenic control mice in the footprint test and movement disorder in the pole test, thus mimicking some features of human parkinsonism. We also found that these symptoms were not affected by dopamine treatment. These results indicate that SJLB mice show signs of parkinsonism and they could be of usefulness not only for studies of dementing disease but also of parkinsonism induced by tauopathy.

PMID:: 20178834; [PubMed - indexed for MEDLINE]

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