normal 0 false false false en-us x-none ar-sa background: vitamin d insufficiency and serum calcium disturbance have been reported to be more common in parkinson’s disease (pd) patients than in healthy control subjects, which may be due to a chronic disease or reduced mobility contributes to these relatively disturbances. because of the high-vitamin d insufficiency in our population, we aimed t...

   Objectives: The present study aimed at investigating the relationship between Dysphonia Severity Index (DSI) and disease speech and voice severity of Parkinson disease (PD) patients. Method. This study was a cross-sectional ones, carried out on 45 PD patients with the age range of 50 to 75 years, who were randomly selected. The Hoehn and Yahr Scale (H.Y Scale) was employed to measure the le...

while parkinson's disease (pd) has traditionally been defined by motor symptoms, many researches have indicated that mild cognitive impairment is common in non-demented pd patients. the purpose of this study was to compare verbal fluency performance in non-demented parkinson's disease patients with healthy controls.in this cross-sectional study thirty non-demented parkinson's disease patients a...