Usefulness of Cardiac MIBG Scintigraphy, DAT scan and midbrain/pontine ratio to differentiate Parkinson disease from atypical parkinsonian syndrome
Objective: The purpose of this study was to evaluate the usefulness of cardiac 123I-metaiodobenzylguanidine (MIBG) uptake, Dopamine transporter (DAT) scan and midbrain/pontine ratio (M/P ratio)…Does dopaminergic denervation of specific anatomical regions of the basal ganglia correlate with clinical features of Parkinsonism: A quantitative DaTscan study
Objective: To correlate different clinical features of parkinsonism with regional variations of presynaptic dopaminergic dysfunction of the basal ganglia using quantitative DaTscans. Background: DaT-SPECT imaging…Is Heart Rate variability a differential biomarker in REM sleep behavior disorder, Parkinson’s disease, multiple system atrophy and progressive supranuclear palsy?
Objective: Heart rate deceleration capacity (DC) and heart rate variability index (HRVI) as potential biomarkers for autonomic dysregulation were studied in subjects (each group N=10)…Evaluation of SV2A expression with [18F]MNI-944 PET imaging in healthy controls (HC) and Parkinson disease (PD)
Objective: To evaluate [18F]MNI-944, a highly selective synaptic SV2A PET imaging tracer, as a biomarker for longitudinal studies in early PD. Background: PD symptoms manifest…Effect of intra-striatal 6-OHDA lesion on extra-striatal structures in the mouse
Objective: Characterization of extra-striatal manifestations in the 6-hydroxydopamine (6-OHDA) Parkinson's disease (PD) animal model. Background: PD is a neurodegenerative disorder characterized by progressive loss of…Alpha-synuclein aggregates of cardiac sympathetic nerves in synucleinopathies and in neurologically unimpaired subjects. Correlation with sympathetic denervation
Objective: To study the cardiac sympathetic innervation and its relationship with the incidence of alpha-synuclein deposits in heart tissue of synucleinopathies and asymptomatic control patients.…