Harvey, Joshua, Smith, Adam R, Weymouth, Luke S, Smith, Rebecca G, Castanho, Isabel, Hubbard, Leon, Creese, Byron, Bresner, Catherine, Williams, Nigel ![]() ![]() |
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Abstract
Parkinson's disease is a highly heterogeneous disorder, encompassing a complex spectrum of clinical presentation including motor, sleep, cognitive and neuropsychiatric symptoms. We aimed to investigate genome-wide DNA methylation networks in post-mortem Parkinson's disease brain samples and test for region-specific association with common neuropsychiatric and cognitive symptoms. Of traits tested, we identify a co-methylation module in the substantia nigra with significant correlation to depressive symptoms. Notably, expression of the genes annotated to the methylation loci present within this module are found to be significantly enriched in neuronal subtypes within the substantia nigra. These findings highlight the potential involvement of neuronal-specific changes within the substantia nigra with regards to depressive symptoms in Parkinson's disease.
Item Type: | Article |
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Date Type: | Published Online |
Status: | Published |
Schools: | Schools > Medicine |
Additional Information: | License information from Publisher: LICENSE 1: Title: cc by, Type: cc by |
Publisher: | Nature Research |
Date of First Compliant Deposit: | 17 March 2025 |
Date of Acceptance: | 24 January 2025 |
Last Modified: | 17 Mar 2025 13:55 |
URI: | https://orca.cardiff.ac.uk/id/eprint/176916 |
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