Journal article

Neural correlates of apathy in late-life depression: a pilot [F-18]FDDNP positron emission tomography study

Harris A Eyre, Prabha Siddarth, Kathleen van Dyk, Natalie St Cyr, Bernhard T Baune, Jorge R Barrio, Gary W Small, Helen Lavretsky

PSYCHOGERIATRICS | WILEY | Published : 2017

Abstract

BACKGROUND: Neurotoxicity associated with amyloid and tau protein aggregation could represent a pathophysiological cascade that, along with vascular compromise, may predispose individuals to late-life depression (LLD). In LLD, apathy is common, leads to worsening of functioning, and responds poorly to antidepressant treatment. Better understanding of the pathophysiological mechanisms of apathy in LLD would facilitate development of more effective diagnostic and treatment approaches. In this cross-sectional pilot study, we performed positron emission tomography scans after injection of 2-(1-{6-[(2-[18 F]fluoroethyl)(methyl)-amino]-2-naphthyl}ethylidene) malononitrile ([18 F]FDDNP), an in vivo..

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University of Melbourne Researchers