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Distinctive neuropathology revealed by α-synuclein antibodies in hereditary parkinsonism and dementia linked to chromosome 4p

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Abstract

The identification of the α-synuclein gene on chromosome 4q as a locus for familial Lewy-body parkinsonism and of α-synuclein as a component of Lewy bodies has heralded a new era in the study of Parkinson’s disease. We have identified a large family with Lewy body parkinsonism linked to a novel locus on chromosome 4p15 that does not have a mutation in the α-synuclein gene. Here we report the clinical and neuropathological findings in an individual from this family and describe unusual high molecular weight α-synuclein-immunoreactive proteins in brain homogenates from brain regions with the most marked neuropathology. Distinctive histopathology was revealed with α-synuclein immunostaining, including pleomorphic Lewy bodies, synuclein-positive glial inclusions and widespread, severe neuritic dystrophy. We also discuss the relationship of this familial disorder to a Lewy body disease clinical spectrum, ranging from Parkinson’s disease to dementia with psychosis.

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Received: 15 March 1999 / Revised, accepted: 24 September 1999

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Gwinn-Hardy, K., Mehta, N., Farrer, M. et al. Distinctive neuropathology revealed by α-synuclein antibodies in hereditary parkinsonism and dementia linked to chromosome 4p. Acta Neuropathol 99, 663–672 (2000). https://doi.org/10.1007/s004010051177

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  • DOI: https://doi.org/10.1007/s004010051177

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