Cognitive abnormalities are common in Parkinson's disease, with important social and
economic implications. Factors influencing their evolution remain unclear but are crucial to …

Parkinson's disease is associated with multiple cognitive impairments and increased risk of
dementia, but the extent of these deficits varies widely among patients. The ICICLE-PD study …

Background: Cognitive decline is well recognized in Parkinson's disease (PD) and a major
concern for patients and caregivers. Apolipoprotein E (APOE), catechol-O-methyl …

Importance Cognitive dysfunction is a common feature among patients with parkinsonism,
including Parkinson disease (PD). However, there is a scarcity of data on cognitive …

Introduction Cognitive impairment is a debilitating manifestation in Parkinson's disease (PD).
We sought to investigate predictors of PD-CI (PD with cognitive impairment). Methods We …

Background Dementia in Parkinson disease (PD) causes nursing home placement,
caregiver distress, higher health care burden, and increased mortality. Objective To …

Cognitive decline is now recognized as a common nonmotor symptom of Parkinson's
disease, and it has been the subject of increasing research in recent decades. Cognitive …

Objective: To describe the frequency of mild cognitive impairment (MCI) in Parkinson
disease (PD) in a cohort of newly diagnosed incident PD cases and the associations with a …

We investigated the genetic overlap between Alzheimer's disease (AD) and Parkinson's
disease (PD). Using summary statistics (P-values) from large recent genome-wide …

Although mild cognitive impairment and dementia are common and have important clinical
consequences for patients with Parkinson's disease (PD) and their caregivers, it is still …