Background Depression is a symptom of Parkinson's disease (PD) and may be correlated
with cardiovascular sympathetic function. Anhedonia is an element of depression, but these …

Background and Purpose Recent studies have shown that several nonmotor symptoms
differ between Parkinson's disease (PD) and drug-induced parkinsonism (DIP). However …

Objectives‐We investigated cardiovascular and renin responses to head‐up tilt tests in
patients with Parkinson's disease (PD), multiple system atrophy (MSA), and in controls to …

Objective Olfactory dysfunction is considered to precede motor symptoms and early markers
of Parkinson's disease (PD), while the relative time at which cardiovascular dysautonomia …

Objective With a combination of different sympathetic tests, we aimed to elucidate whether
impairment of sympathetic function in Parkinson's disease (PD) is the consequence of a …

Objective The purpose of the present study was to investigate cardiovascular autonomic
dysfunction in patients with Parkinson's disease (PD) with mild to severe stages of motor …

Background: Autonomic dysfunction and depression are common non-motor symptoms of
Parkinson's disease (PD) that confer poorer prognosis. These PD symptoms may have …

Background and Aim: Both depression and cardiovascular autonomic dysfunctions, such as
orthostatic hypotension, supine hypertension, and the absence of normal nocturnal blood …

Aim: Anhedonia has been proposed as a specific mood disorder related to the dopaminergic
nerve dysfunction seen in Parkinson's disease (PD). This study examined hedonic tone in …

Anhedonia is one of the non-motor symptoms observed in the Parkinson's disease (PD).
However, there is no clear relationship between anhedonia and its correlation with other …