Journal article

Muscarinic receptor binding changes in postmortem Parkinson's disease

Caitlin McOmish, Geoff Pavey, Catriona McLean, Malcolm Horne, Brian Dean, Elizabeth Scarr



Parkinson's disease (PD) is a devastating disorder, affecting approximately 2% of people aged 60 and above. It is marked by progressive neurodegeneration that has long been known to impact dopaminergic cells and circuits, but more recently the acetylcholine system has also been implicated in the complex aetiology and symptomatology of the disease. While broad changes in cholinergic markers have been described, insight into the contribution of specific acetylcholine receptors is less clear. To address this important unknown, in this study we performed [3H] pirenzepine, [3H] 4DAMP, and [3H] AF-DX 384 in situ radioligand binding on postmortem tissues from Brodmann's area 6, 9, 46, and the cauda..

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Awarded by NHMRC

Awarded by Brain and Behavior Research Foundation

Awarded by ARC

Funding Acknowledgements

CEM was supported by an NHMRC overseas biomedical research fellowship (APP628906), a Brain and Behavior Research Foundation Young Investigator Award (19543), while these studies were being performed. BD is an NHMRC Senior Research Fellow (APP1002240). This work was supported in part by NHMRC Project Grants (APP1045619, APP628699, and APP1066144), the Victorian Government's Operational Infrastructure Support, and the Rebecca Cooper Medical Research Foundation. ES was supported by an ARC future fellowship (FT100100689). The funding sources were not involved in the study design; in the collection, the analysis and interpretation of data; in the writing of the report; or in the decision to submit the paper for publication.