Azaltılmış serum interlökin-2, daha yüksek motor şiddeti ve CD4 T hücre değişiklikleri ile birlikte, izole REM Uyku Davranış Bozukluğu'nda erken bir olay olabilir.

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BackgroundEmerging evidence indicates that peripheral immune changes occur in patients with isolated REM sleep behaviour disorder (iRBD) and may contribute to the conversion of this dream enactment disorder to a neurodegenerative synucleinopathy such as Parkinson's disease, dementia with Lewy bodies or multiple system atrophy. However, with only a limited number of studies conducted, the extent to which immune changes occur across diverse iRBD cohorts remains to be determined.ObjectivesWe therefore aimed to assess peripheral immune changes in an Australian cohort of iRBD patients (n = 65) compared to controls (n = 35).MethodsA 9-plex cytokine assay was used to measure serum levels of IFNγ, IL-10, IL-12, IL-17A, IL-1β, IL-2, IL-4, IL-6 and TFNα. Flow cytometry was used to assess T cell populations in the same participants.ResultsExploratory analyses revealed lower levels of the T cell regulating cytokine interleukin 2 (IL-2) in participants with iRBD, along with lower frequencies of CD4 T cells positive for IL-2, IL-4 and IL-10.ConclusionsThese results add to evidence of immune alterations in iRBD and suggest that dysregulation of cytokines with anti-inflammatory properties may be an early event that could associate with subsequent development of a neurodegenerative synucleinopathy.

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