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  • Title: Familial presenile dementia with psychosis associated with cortical neurofibrillary tangles and degeneration of the amygdala.
    Author: Sumi SM, Bird TD, Nochlin D, Raskind MA.
    Journal: Neurology; 1992 Jan; 42(1):120-7. PubMed ID: 1734292.
    Abstract:
    We report a family in which 13 members in three generations had the presenile (age 42 to 66 years) onset of dementia with an autosomal dominant pattern of inheritance. An early symptom in eight individuals was prominent antisocial psychotic or belligerent behavior, often leading to the initial clinical diagnosis of paranoid schizophrenia. Duration of illness was longer than is usual in Alzheimer's disease (AD), ranging from 14 to 26 years in six members. Three affected siblings and a cousin have come to autopsy, and all had neurofibrillary tangles without senile plaques in several regions of the neocortex, amygdala, and parahippocampal gyrus. The hippocampus was free of both neurofibrillary tangles and senile plaques in all four, but in three there was neuronal loss with gliosis in the CA1 region of Ammon's horn bilaterally. There also was neuronal loss and neurofibrillary tangles in the nucleus basalis. The neurofibrillary tangles were tau-2 and Alz-50 positive and were composed of paired helical filaments ultrastructurally. The disease in this kindred appears to be a unique hereditary disorder that is distinct from familial AD.
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