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Criminal behavior in frontotemporal dementia and Alzheimer disease.

ABSTRACT: IMPORTANCE:Neurodegenerative diseases can cause dysfunction of neural structures involved in judgment, executive function, emotional processing, sexual behavior, violence, and self-awareness. Such dysfunctions can lead to antisocial and criminal behavior that appears for the first time in the adult or middle-aged individual or even later in life. OBJECTIVE:To investigate the frequency and type of criminal behavior among patients with a diagnosed dementing disorder. DESIGN, SETTING, AND PARTICIPANTS:We conducted a retrospective medical record review of 2397 patients who were seen at the University of California, San Francisco, Memory and Aging Center between 1999 and 2012, including 545 patients with Alzheimer disease (AD), 171 patients with behavioral variant of frontotemporal dementia (bvFTD), 89 patients with semantic variant of primary progressive aphasia, and 30 patients with Huntington disease. Patient notes containing specific keywords denoting criminal behavior were reviewed. Data were stratified by criminal behavior type and diagnostic groups. MAIN OUTCOMES AND MEASURES:Frequencies of criminal behavior and ?² statistics were calculated. RESULTS:Of the 2397 patients studied, 204 (8.5%) had a history of criminal behavior that emerged during their illness. Of the major diagnostic groups, 42 of 545 patients (7.7%) with AD, 64 of 171 patients (37.4%) with bvFTD, 24 of 89 patients (27.0%) with semantic variant of primary progressive aphasia, and 6 of 30 patients (20%) with Huntington disease exhibited criminal behavior. A total of 14% of patients with bvFTD were statistically significantly more likely to present with criminal behavior compared with 2% of patients with AD (P?

SUBMITTER: Liljegren M

PROVIDER: S-EPMC4432918 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature

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Criminal behavior in frontotemporal dementia and Alzheimer disease.

Liljegren Madeleine M Naasan Georges G Temlett Julia J Perry David C DC Rankin Katherine P KP Merrilees Jennifer J Grinberg Lea T LT Seeley William W WW Englund Elisabet E Miller Bruce L BL

JAMA neurology 20150301 3

<h4>Importance</h4>Neurodegenerative diseases can cause dysfunction of neural structures involved in judgment, executive function, emotional processing, sexual behavior, violence, and self-awareness. Such dysfunctions can lead to antisocial and criminal behavior that appears for the first time in the adult or middle-aged individual or even later in life.<h4>Objective</h4>To investigate the frequency and type of criminal behavior among patients with a diagnosed dementing disorder.<h4>Design, sett ...[more]

PMID: 25559744

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Project description:IMPORTANCE:Previous studies have indicated a heritable component of the etiology of neurodegenerative diseases such as Alzheimer disease (AD), frontotemporal dementia (FTD), and progressive supranuclear palsy (PSP). However, few have examined the contribution of low-frequency coding variants on a genome-wide level. OBJECTIVE:To identify low-frequency coding variants that affect susceptibility to AD, FTD, and PSP. DESIGN, SETTING, AND PARTICIPANTS:We used the Illumina HumanExome BeadChip array to genotype a large number of variants (most of which are low-frequency coding variants) in a cohort of patients with neurodegenerative disease (224 with AD, 168 with FTD, and 48 with PSP) and in 224 control individuals without dementia enrolled between 2005-2012 from multiple centers participating in the Genetic Investigation in Frontotemporal Dementia and Alzheimer's Disease (GIFT) Study. An additional multiancestral replication cohort of 240 patients with AD and 240 controls without dementia was used to validate suggestive findings. Variant-level association testing and gene-based testing were performed. MAIN OUTCOMES AND MEASURES:Statistical association of genetic variants with clinical diagnosis of AD, FTD, and PSP. RESULTS:Genetic variants typed by the exome array explained 44%, 53%, and 57% of the total phenotypic variance of AD, FTD, and PSP, respectively. An association with the known AD gene ABCA7 was replicated in several ancestries (discovery P=.0049, European P=.041, African American P=.043, and Asian P=.027), suggesting that exonic variants within this gene modify AD susceptibility. In addition, 2 suggestive candidate genes, DYSF (P=5.53×10(-5)) and PAXIP1 (P=2.26×10(-4)), were highlighted in patients with AD and differentially expressed in AD brain. Corroborating evidence from other exome array studies and gene expression data points toward potential involvement of these genes in the pathogenesis of AD. CONCLUSIONS AND RELEVANCE:Low-frequency coding variants with intermediate effect size may account for a significant fraction of the genetic susceptibility to AD and FTD. Furthermore, we found evidence that coding variants in the known susceptibility gene ABCA7, as well as candidate genes DYSF and PAXIP1, confer risk for AD.

Dataset Information

Criminal behavior in frontotemporal dementia and Alzheimer disease.

Publications

Criminal behavior in frontotemporal dementia and Alzheimer disease.

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