Publications by authors named "Hiroto Shibayama"

Objectives: There is currently no meta-analysis of the efficacy and tolerability of Yokukansan in the treatment of behavioral and psychological symptoms of dementia.

Method: We used information obtained from the PubMed and Cochrane Library databases until October 2012. We conducted a systematic review and meta-analysis of individual patient data from randomized controlled trials comparing Yokukansan with usual care (UC, i.

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We discuss a case of a 67-year-old male with dementia with Lewy bodies (DLB) that was initially suspected as Creutzfeldt-Jakob disease (CJD) or another type of encephalopathy, because he showed rapidly progressive deterioration, myoclonus, gait disturbance and a decline in activities of daily living. The present study describes a clinically atypical case with probable DLB and reviews similar cases in the literature, and we propose a rapidly progressive clinical subtype of DLB.

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Diffuse neurofibrillary tangles with calcification (DNTC) is a relatively rare presenile dementia that clinically shows overlapping symptoms of Alzheimer's disease and frontotemporal lobar degeneration (FTLD). DNTC is pathologically characterized by localized temporal or frontotemporal atrophy with massive neurofibrillary tangles, neuropil threads and Fahr's-type calcification without senile plaques. We tried to clarify the molecular basis of DNTC by immunohistochemically examining the appearance and distribution of accumulated alpha-synuclein (aSyn) and TAR DNA-binding protein of 43kDa (TDP-43) in the brains of 10 Japanese autopsy cases.

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Aims: In this study, the appearance and distribution of neurofibrillary tangles (NFT) in diffuse neurofibrillary tangles with calcification (DNTC) were investigated neuropathologically in order to elucidate the detailed distribution pattern in this disease.

Methods: The distribution of NFT in six cases neuropathologically diagnosed as DNTC (two men and four women) was studied using Gallyas-Braak silver stain. The age at death ranged from 56 to 73, with an average of 63.

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We developed a brief scale to evaluate communication ability of the demented elderly. This scale assesses not only abilities related to overall communication such as verbal function, judgment and emotional function, but also non-verbal communication such as eye-contact, nodding and smiling. The scale places little burden on the demented elderly subject and takes only a few minutes to perform, even if the dementia is severe.

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The heterogeneity of senile dementia of Alzheimer type (SDAT) has been suggested by some authors clinically and neuropathologically. The heterogeneity of SDAT was investigated based on quantification of NFT combining Braak and Braak's neuropathological staging and the density of NFT in various areas of the cerebral cortex. Brain tissues were examined from 16 autopsy cases with clinically late onset dementia (> age 65) and neuropathologically diagnosed dementia of Alzheimer type (DAT).

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In the present study the occurrence and distribution of glial fibrillary tangles (GFT) and their related structures in diffuse neurofibrillary tangles with calcification (DNTC) were investigated using Gallyas-Braak (GB) stain. Six cases neuropathologically diagnosed as DNTC were studied (two males and four females). The age at death ranged from 56 to 73 years, with an average of 63.

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