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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: 5-123I-A-85380 binding to the α4β2-nicotinic receptor in mild cognitive impairment
Author(s): Terriere, Emma
Dempsey, Mary F
Herrmann, Lucie L
Tierney, Kevin M
Lonie, Jane A
O'Carroll, Ronan
Pimlott, Sally
Wyper, David J
Herholz, Karl
Ebmeier, Klaus P
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Keywords: Alzheimer's disease
Mild cognitive impairment
Nicotinic acetylcholine receptors
Single photon emission tomography
Dementia Research
Cognitive psychology
Alzheimer Disease
Issue Date: Nov-2010
Date Deposited: 26-Apr-2010
Citation: Terriere E, Dempsey MF, Herrmann LL, Tierney KM, Lonie JA, O'Carroll R, Pimlott S, Wyper DJ, Herholz K & Ebmeier KP (2010) 5-123I-A-85380 binding to the α4β2-nicotinic receptor in mild cognitive impairment. Neurobiology of Aging, 31 (11), pp. 1885-1893.;
Abstract: Treatments currently licensed for Alzheimer's dementia target cholinergic brain systems. In vivo nicotinic receptor binding may provide an early marker of illness and treatment suitability. In this pilot, we examined nine patients with amnestic mild cognitive impairment (MCI) and 10 age and education matched healthy volunteers with high resolution SPECT and the nicotinic receptor ligand 5-123I-A-85380. Uptake data were analysed using voxel-based techniques for group comparisons and regression analyses with cognitive impairment as covariates. MCI patients had discrete reductions in uptake in medial temporal cortex. Correlations with cognitive impairment were found in left temporo-parietal areas (Addenbrooke's Cognitive Examination) and bilateral temporo-limbic areas (Rey Auditory Verbal Learning Test), and right parahippocampal gyrus (Rey Complex Figure Test) within the patient group. In vivo nicotinic receptor binding appears to be sensitive to brain changes in MCI. Larger scale explorations of patients undergoing treatment will be necessary to evaluate its use in predicting or monitoring treatment response.
DOI Link: 10.1016/j.neurobiolaging.2008.10.008
Rights: Published in Neurobiology of Aging by Elsevier.

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