The brain-first vs. body-first model of Parkinson's disease with comparison to alternative models

被引:42
作者
Borghammer, Per [1 ,2 ]
机构
[1] Aarhus Univ, Dept Clin Med, Aarhus, Denmark
[2] Aarhus Univ Hosp, Dept Nucl Med & PET, Palle Juul Jensens Blvd 165,J220, DK-8200 Aarhus, Denmark
关键词
Parkinson's disease; Pathogenesis; Natural history; Dopamine; Autonomic; Postmortem; SLEEP BEHAVIOR DISORDER; ALPHA-SYNUCLEIN PATHOLOGY; MIBG MYOCARDIAL SCINTIGRAPHY; AUTONOMIC NERVOUS-SYSTEM; LEWY BODIES; COGNITIVE IMPAIRMENT; AMYLOID DEPOSITION; MOTOR ASYMMETRY; DEMENTIA; DYSFUNCTION;
D O I
10.1007/s00702-023-02633-6
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
The ultimate origin of Lewy body disorders, including Parkinson's disease (PD) and Dementia with Lewy bodies (DLB), is still incompletely understood. Although a large number of pathogenic mechanisms have been implicated, accumulating evidence support that aggregation and neuron-to-neuron propagation of alpha-synuclein may be the core feature of these disorders. The synuclein, origin, and connectome (SOC) disease model of Lewy body disorders was recently introduced. This model is based on the hypothesis that in the majority of patients, the first alpha-synuclein pathology arises in single location and spreads from there. The most common origin sites are the enteric nervous system and the olfactory system. The SOC model predicts that gut-first pathology leads to a clinical body-first subtype characterized by prodromal autonomic symptoms and REM sleep behavior disorder. In contrast, olfactory-first pathology leads to a brain-first subtype with fewer non-motor symptoms before diagnosis. The SOC model further predicts that body-first patients are older, more commonly develop symmetric dopaminergic degeneration, and are at increased risk of dementia-compared to brain-first patients. In this review, the SOC model is explained and compared to alternative models of the pathogenesis of Lewy body disorders, including the Braak staging system, and the Unified Staging System for Lewy Body Disorders. Postmortem evidence from brain banks and clinical imaging data of dopaminergic and cardiac sympathetic loss is reviewed. It is concluded that these datasets seem to be more compatible with the SOC model than with those alternative disease models of Lewy body disorders.
引用
收藏
页码:737 / 753
页数:17
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