Format

Send to

Choose Destination
See comment in PubMed Commons below
Neuropathol Appl Neurobiol. 2013 Oct;39(6):644-53. doi: 10.1111/nan.12024.

Disturbed sleep in Parkinson's disease: anatomical and pathological correlates.

Author information

1
Neuropathology Unit, Division of Brain Sciences, Department of Medicine, Imperial College London, London, UK.

Abstract

AIMS:

Abnormal sleep is a common feature of Parkinson's disease (PD) and prodromal disorders of sleep are frequent (e.g. restless legs syndrome and rapid eye movement sleep behaviour disorder). However, the exact pathological basis of disturbed sleep remains as yet undefined.

METHODS:

To investigate this further, 32 PD cases were stratified into three groups: (1) PD with disturbed sleep, PD(S); (2) PD with dementia (PDD) and disturbed sleep, PDD(S); and (3) PD without disturbed sleep, PD(nS). The extent of α-synuclein (αSyn) and Alzheimer disease (AD)-type pathology [amyloid β peptide (Aβ) and tau] was assessed in 15 regions of the PD brain.

RESULTS:

The results demonstrate a significant association between disturbed sleep in PD and αSyn pathology in specific brainstem [locus coeruleus (P = 0.006) and raphe nuclei (P = 0.02)], hypothalamic [paramammillary nuclei (P = 0.04) and posterior nucleus (P = 0.02)], subcortical/limbic [amygdala (P = 0.03), thalamus (P = 0.01)] and cortical [entorhinal cortex (P = 0.01)] regions. A statistically significant increase of tau pathology was observed in the amygdala (P = 0.03), CA2 sector of the hippocampus (P = 0.01) and entorhinal cortex (P = 0.04) in PD cases with disturbed sleep.

CONCLUSIONS:

Pathological changes in these structures, residing in the brain circuitry relating to sleep physiology, strongly predict the presence of sleep disturbances in PD.

KEYWORDS:

Lewy body disease; Parkinson's disease; dementia; neuropathology; sleep

PMID:
23363035
DOI:
10.1111/nan.12024
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center