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Lookup NU author(s): Dr Ahmad Khundakar, Dr Christopher Morris, Arthur Oakley, Professor Alan ThomasORCiD
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Background Late-life depression has been associated with cerebrovascular disease and especially with ischaemic white matter hyperintensities on magnetic resonance imaging. Neuroinnaging and morphometric studies have identified abnormalities in the dorsolateral prefrontal cortex. Aims To examine glial and neuronal density and neuronal volume in the dorsolateral brefrontal cortex in late-life major depression. Method We used the disector and nucleator methods to estimate neuronal density and volume and glial density of cells in the dorsolateral prefrontal cortex in a post-mortem study of 17 individuals with late-life major depression and 10 age-matched controls. Results We found a reduction in the volume of pyramidal neurones in the whole cortex, which was also present in layer 3 and more markedly in layer 5. There were no comparable changes in non-pyramidal neurones and no glial differences. Conclusions Overall, we found a decrease in pyramidal neuronal size in the dorsolateral prefrontal cortex in late-life depression.
Author(s): Khundakar A, Morris C, Oakley A, McMeekin W, Thomas AJ
Publication type: Article
Publication status: Published
Journal: British Journal of Psychiatry
Year: 2009
Volume: 195
Issue: 2
Pages: 163-169
ISSN (print): 0007-1250
ISSN (electronic): 1472-1465
Publisher: Royal College of Psychiatrists
URL: http://dx.doi.org/10.1192/bjp.bp.108.052688
DOI: 10.1192/bjp.bp.108.052688
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