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Oxytocin and Social Cognition in Frontotemporal Dementia

2014-08-27 03:18:23 | BioPortfolio

Summary

Investigations into the components of cognition damaged in frontotemporal dementia (FTD) demonstrate that patients with FTD show deficits in facial and verbal expression recognition, lack insight into what others think or might do (theory of mind skills), and in decision making tasks requiring processing of positive versus negative feedback. These cognitive functions are thought to be critical for appropriate social behavioural regulation (Blair, 2003). Recent studies in animal models and humans suggest that the neuropeptide oxytocin is an important mediator of social behavior and that oxytocin may facilitate emotion recognition, theory of mind processing, and prosocial behaviors (Donaldson and Young, 2008). Together, these findings suggest that upregulation of oxytocin dependent mechanisms of social and emotional cognition may be a valuable treatment approach in patients with FTD. The aim of this study is to determine how administration of intranasal oxytocin to patients with frontotemporal dementia affects behavior and processing of specific types of social and emotional information.The investigators' hypothesis is that oxytocin administration will improve emotional and social cognitive deficits in patients with FTD, resulting in improved decision making and behaviour.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Frontotemporal Dementia

Intervention

intranasal oxytocin

Location

Cognitive Neurology and Alzheimer's Research Centre, St. Joseph's Hospital
London
Ontario
Canada
N6A 3T8

Status

Completed

Source

Lawson Health Research Institute

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:18:23-0400

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Medical and Biotech [MESH] Definitions

The most common clinical form of FRONTOTEMPORAL LOBAR DEGENERATION, this dementia presents with personality and behavioral changes often associated with disinhibition, apathy, and lack of insight.

Heterogeneous group of neurodegenerative disorders characterized by frontal and temporal lobe atrophy associated with neuronal loss, gliosis, and dementia. Patients exhibit progressive changes in social, behavioral, and/or language function. Multiple subtypes or forms are recognized based on presence or absence of TAU PROTEIN inclusions. FTLD includes three clinical syndromes: FRONTOTEMPORAL DEMENTIA, semantic dementia, and PRIMARY PROGRESSIVE NONFLUENT APHASIA.

A form of presenile DEMENTIA characterized by cortical dementia, NEUROFIBRILLARY TANGLES without SENILE PLAQUES, Fahr's type CALCINOSIS, and ATROPHY in frontotemporal or TEMPORAL LOBE.

Cell surface proteins that bind oxytocin with high affinity and trigger intracellular changes which influence the behavior of cells. Oxytocin receptors in the uterus and the mammary glands mediate the hormone's stimulation of contraction and milk ejection. The presence of oxytocin and oxytocin receptors in neurons of the brain probably reflects an additional role as a neurotransmitter.

A form of frontotemporal lobar degeneration and a progressive form of dementia characterized by motor speech impairment and AGRAMMATISM, with relative sparing of single word comprehension and semantic memory.

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