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Frontotemporal Lobar Degeneration: A Historical Overview of the Concept Shinobu Kawakatsu 1 , Ryota Kobayashi 2 , Kazutaka Sakamoto 3 , Koich Otani 2 1Department of Neuropsychiatry, Aizu Medical Center, Fukushima Medical School 2Department of Psychiatry, Yamagata University School of Medicine 3Department of Occupational Therapy, Yamagata Prefectural University Graduate School of Health Sciences Keyword: 前頭側頭型認知症 , ピック病 , 原発性進行性失語症 , タウ , TDP-43 , frontotemporal dementia , Pick's disease , primary progressive aphasia , tau pp.561-573
Published Date 2020/6/1
DOI https://doi.org/10.11477/mf.1416201567
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Abstract

Arnold Pick described a focal cortical syndrome caused by focal temporal and/or frontal cortical atrophy, later reffered to as Pick's disease (PiD), a prototype of frontotemporal lobar degeneration (FTLD). In contrast to the current concept of PiD, the presence of Pick bodies (tau-positive inclusions) was not thought to be necessary for the diagnosis of PiD. Four out of the seven patients in his original paper had predominant left temporal atrophy and language related symptoms corresponding to semantic dementia. It is now known that most patients with semantic dementia have transactive response DNA-binding protein 43kDa (TDP-43) pathology rather than tau pathology. The original concept of PiD was substantially similar to the current concept of FTLD, which has heterogeneous molecular pathology including tau, TDP-43 and fused in sarcoma (FUS).


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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