Opportunities and Pitfalls of REM Sleep Behavior Disorder and Olfactory Dysfunction as Early Markers in Parkinson's Disease

During its pre-motor stage, Parkinson's disease (PD) presents itself with a multitude of non-motor symptoms with different degrees of specificity and sensitivity. The most important among them are REM sleep behavior disorder (RBD) and olfactory dysfunction. RBD is a parasomnia characterized by the loss of REM sleep muscle atonia and dream-enacting behaviors. Olfactory dysfunction in individuals with prodromal PD is usually described as hyposmia (reduced sense of smell) or anosmia (complete loss of olfactory function). These symptoms can precede the full expression of motor symptoms by decades. A close comprehension of these symptoms and the underlying mechanisms may enable early screening as well as interventions to improve patients' quality of life. Therefore, these symptoms have unmatched potential for identifying PD patients in prodromal stages, not only allowing early diagnosis but potentially opening a window for early, possibly disease-modifying intervention. However, they come with certain challenges. This review addresses some of the key opportunities and pitfalls of both RBD and olfactory dysfunction as early markers of PD.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - year:2024

Enthalten in:

Journal of Parkinson's disease - (2024) vom: 22. März

Sprache:

Englisch

Beteiligte Personen:

Orso, Beatrice [VerfasserIn]
Brosse, Sarah [VerfasserIn]
Frasnelli, Johannes [VerfasserIn]
Arnaldi, Dario [VerfasserIn]

Links:

Volltext

Themen:

Anosmia
Early markers
Hyposmia
Journal Article
Parkinson’s disease
REM sleep behavior disorder
Review
Screening

Anmerkungen:

Date Revised 22.03.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.3233/JPD-230348

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370073746