Déjà-vu? Neural and behavioural effects of the 5-HT4 receptor agonist, prucalopride, in a hippocampal-dependent memory task

Angharad de Cates*, Lucy C. Wright, Marieke A.G. Martens, Daisy Gibson, Cagdas Türkmen, Nicola Filippini, Philip J. Cowen, Catherine J. Harmer, Susannah E. Murphy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Downloads (Pure)

Abstract

Cognitive deficits commonly accompany psychiatric disorders but are often underrecognised, and difficult to treat. The 5-HT4 receptor is a promising potential treatment target for cognitive impairment because in animal studies 5-HT4 receptor agonists enhance hippocampal-dependent memory processes. To date, there has been little work translating these effects to humans. We tested whether short-term administration of the 5-HT4 partial agonist, prucalopride, modified behavioural and neural (fMRI) memory processing in 44 healthy human volunteers using an experimental medicine model. We found that participants who had received six days of prucalopride treatment were significantly better at recalling previously seen neutral images and distinguishing them from new images. At a neural level, prucalopride bilaterally increased hippocampal activity and activity in the right angular gyrus compared with placebo. Taken together, these findings demonstrate the potential of 5-HT4-receptor activation for cognitive enhancement in humans, and support the potential of this receptor as a treatment target for cognitive impairment.
Original languageEnglish
Article number497
Number of pages9
JournalTranslational Psychiatry
Volume11
DOIs
Publication statusPublished - 4 Oct 2021

Bibliographical note

Funding:
ANdeC is funded by a Wellcome Trust Clinical Doctoral Research Fellowship (216430/Z/19/Z), and has received a travel grant from the Royal College of Psychiatrists/Gatsby Foundation. MM is and NF was at the time of the study funded by the NIHR Oxford Health Biomedical Research Centre. This research was supported by the NIHR Oxford Health Biomedical Research Centre and by the Wellcome Centre for Integrative Neuroscience (WIN) (203139/Z/16/Z). The views expressed are those of the authors and not necessarily those of Wellcome, the NHS, the NIHR, or the Department of Health. None of these bodies had a significant role in the design, collection and analysis of data, or decision to publish this article. This research was funded in whole, or in part, by the Wellcome Trust. For the purpose of open access, the author has applied a CC BY public copyright licence to any author accepted manuscript version arising from this submission.

Fingerprint

Dive into the research topics of 'Déjà-vu? Neural and behavioural effects of the 5-HT4 receptor agonist, prucalopride, in a hippocampal-dependent memory task'. Together they form a unique fingerprint.

Cite this