BACKGROUND AND PURPOSE Progressive changes in the substantia nigra pars compacta and locus ceruleus of patients with Parkinson disease and Alzheimer disease visualized by neuromelanin MRI and cardiac postganglionic sympathetic nerve function on (123)I-metaiodobenzylguanidine scintigraphy have not been fully evaluated. We compared the diagnostic value of these modalities among patients with earl...

more than 10 million people worldwide are living with parkinson’s disease (pd). the ages of people who have parkinson are variable, usually between 50 and 80 years, the average of them is 55 years old. the symptoms of pd are progressive, and within 10 to 20. it happens when dopaminergic neurons were being degenerate. peripheral and central inflammatory and oxidative stress pathways play a compl...

More than 10 million people worldwide are living with Parkinson’s disease (PD). The ages of people who have Parkinson are variable, usually between 50 and 80 years, the average of them is 55 years old. The symptoms of PD are progressive, and within 10 to 20. It happens when dopaminergic neurons were being degenerate. Peripheral and central inflammatory and oxidative stress pathways play a...

after alzheimer disease, parkinson disease (pd) is considered the most common neurodegenerative disease. its prevalence is the same in all area but it is common in males than females. from every 100 persons who are above 60 years old, one of them has pd. also 5-10% of patients are less than 40 years old. this progressive neuroinflammation disease isn’t fatal. in 60% of cases is with depression....

cognitive deficits such as impairments in attention, memory, information processing and executive functioning can be found in some parkinson's disease (pd) patients. recent studies suggested that pd drivers generally performed poorer than their healthy age-matched controls with regards to their cognitive and motor abilities during the psychometric testing. according to michon’s model of ca...

Parkinson disease is a progressive degenerative disease causing motor and non-motor symptoms. Sleep disturbance is a common non-motor symptom and significantly affect the day to day activities of patients and their quality of life. Though common, sleep disturbance is an under diagnosed feature of Parkinson disease (PD). Night-time sleep disturbances have been reported in as many as 60 to 98% of...

Mutations in the the leucine-rich repeat kinase-2 (LRRK2) gene cause autosomal-dominant Parkinson disease and some cases of sporadic Parkinson disease. Here we found that LRRK2 kinase activity was regulated by GTP via the intrinsic GTPase Roc domain, and alterations of LRRK2 protein that reduced kinase activity of mutant LRRK2 correspondingly reduced neuronal toxicity. These data elucidate the ...