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StudiuParkinsonÎncredere înaltă20.06.2026

Validation of 2015 MDS Parkinson Disease Diagnostic Criteria in Autopsy-Confirmed Cases: A Scoping Review

This systematic literature review (1988–2024) evaluated the validity of the 2015 International Parkinson and Movement Disorder Society diagnostic criteria using pathologically-confirmed PD cases, identifying which supportive criteria and red flags best distinguish PD from atypical parkinsonian disorders. The study found that excellent levodopa response and rest tremor were most useful for PD diagnosis, though some red flags (supranuclear gaze palsy, rapid gait progression, bilateral symptoms) occurred in >5% of confirmed PD cases, suggesting potential criteria refinement.

StudiuParkinsonÎncredere înaltă20.06.2026

Pathogenic GRN Variants Found in 0.1% of Parkinson's Disease Patients: Implications for Differential Diagnosis

A study of over 18,500 PD patients identified pathogenic or likely pathogenic GRN variants in 24 patients (0.13%), suggesting that GRN-associated frontotemporal dementia can clinically mimic Parkinson's disease. The findings recommend comprehensive genetic testing including GRN analysis for patients with parkinsonism to improve diagnostic accuracy and inform treatment decisions.

StudiuParkinsonÎncredere bună20.06.2026

Levodopa consumption during sleep: A novel parasomnia in Parkinson's disease

This case report documents an unusual parasomnia where a Parkinson's disease patient ingests levodopa medication while asleep, representing a complex interaction between antiparkinsonian therapy and sleep disorders. The phenomenon illustrates how dopaminergic medications can influence sleep-related behaviors in neurological conditions.

StudiuParkinsonÎncredere bună20.06.2026

Yawning-related tremor in patients with Parkinson's disease: prevalence and clinical associations

This cross-sectional study of 119 Parkinson's disease patients found yawning-triggered tremor (YRT) significantly more prevalent in PD (18.5%) than controls (2.7%), with notably higher rates in patients with concurrent essential tremor (41.2%) or REM sleep behavior disorder (68.2%). In approximately one-third of cases, YRT preceded motor symptom onset by ~21 months, suggesting it may serve as an early neurodegeneration marker reflecting shared brainstem pathophysiology.

StudiuParkinsonÎncredere înaltă20.06.2026

Drug-Induced Parkinsonism: Clinical Perspective and Management Approach

Drug-induced parkinsonism (DIP) is a common adverse effect of dopamine receptor-blocking agents that mimics idiopathic Parkinson's disease but requires prior exposure to triggering medications for diagnosis. Management involves discontinuing or reducing the offending agent, considering alternative medications with lower DIP risk, and using L-dopa when necessary, with ancillary testing like DaT scans helping distinguish DIP from prodromal Parkinson's disease.