scholarly journals A Review of the Pathophysiology of Psychological Disorders in Persons with Parkinson’s Disease

2005 ◽  
Author(s):  
Neil Kenney ◽  
Efrain Gonzalez
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
Biopsychosocial Model ◽  
Healthcare Providers ◽  
Psychological Disorders ◽  
Interdisciplinary Care ◽  
Psychological Disturbance ◽  
Essential Component

An understanding of the physiological etiologies of psychological disturbance continues to evolve as an essential component of training and practice for healthcare providers. The epidemiology of psychological disorders in persons with Parkinson’s disease (PD) is reviewed. The anatomy of the basal ganglia, etiology of PD, and pathophysiological bases for depression, anxiety, dementia, apathy, psychosis and delusions in persons with PD are then discussed. In consideration of the strong biological and environmental bases of psychopathology in persons with PD, it is proposed that a biopsychosocial model be considered for optimal delivery of interdisciplinary care to this population.

SPECT-Befunde bei Hemiparkinson-Syndrom mit 99mTc-HMPAO

1989 ◽  
Vol 28 (03) ◽  
pp. 92-94 ◽  
Author(s):  
C. Neumann ◽  
H. Baas ◽  
R. Hefner ◽  
G. Hör
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
Neuronal Activity ◽  
Tracer Uptake ◽  
The Body ◽  
99Mtc Hmpao ◽  
Do So

The symptoms of Parkinson’s disease often begin on one side of the body and continue to do so as the disease progresses. First SPECT results in 4 patients with hemiparkinsonism using 99mTc-HMPAO as perfusion marker are reported. Three patients exhibited reduced tracer uptake in the contralateral basal ganglia One patient who was under therapy for 1 year, showed a different perfusion pattern with reduced uptake in both basal ganglia. These results might indicate reduced perfusion secondary to reduced striatal neuronal activity.

scholarly journals Corticostriatal Plastic Changes in Experimental L-DOPA-Induced Dyskinesia

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Veronica Ghiglieri ◽  
Vincenza Bagetta ◽  
Valentina Pendolino ◽  
Barbara Picconi ◽  
Paolo Calabresi
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
Experimental Models ◽  
Striatal Neurons ◽  
Da Receptors ◽  
Electrophysiological Studies ◽  
Plastic Changes ◽  
Stimulation Of

In Parkinson’s disease (PD), alteration of dopamine- (DA-) dependent striatal functions and pulsatile stimulation of DA receptors caused by the discontinuous administration of levodopa (L-DOPA) lead to a complex cascade of events affecting the postsynaptic striatal neurons that might account for the appearance of L-DOPA-induced dyskinesia (LID). Experimental models of LID have been widely used and extensively characterized in rodents and electrophysiological studies provided remarkable insights into the inner mechanisms underlying L-DOPA-induced corticostriatal plastic changes. Here we provide an overview of recent findings that represent a further step into the comprehension of mechanisms underlying maladaptive changes of basal ganglia functions in response to L-DOPA and associated to development of LID.

The effect of striatal pre-enkephalin overexpression in the basal ganglia of the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine mouse model of Parkinson's disease

2014 ◽  
Vol 40 (2) ◽  
pp. 2406-2416 ◽  
Author(s):  
Stéphanie Bissonnette ◽  
Sophie Muratot ◽  
Nathalie Vernoux ◽  
François Bezeau ◽  
Frédéric Calon ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
Mouse Model

1. DBS in Parkinson’s disease: Precision of stimulation sites based on a mean 3-dimensional atlas of the thalamus and basal ganglia

2012 ◽  
Vol 123 (10) ◽  
pp. e108
Author(s):  
J. Sarnthein ◽  
D. Péus ◽  
H. Baumann-vogel ◽  
C.R. Baumann ◽  
O. Sürücü
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
3 Dimensional

Basal ganglia and gait control: apomorphine administration and internal pallidum stimulation in Parkinson's disease

1999 ◽  
Vol 126 (2) ◽  
pp. 139-148 ◽  
Author(s):  
R. Grasso ◽  
A. Peppe ◽  
F. Stratta ◽  
D. Angelini ◽  
M. Zago ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
Gait Control ◽  
Internal Pallidum

Involvement of Subcortical Structures in the Preparation of Self-Paced Movement

2004 ◽  
Vol 18 (2/3) ◽  
pp. 130-139 ◽  
Author(s):  
Guillermo Paradiso ◽  
Danny Cunic ◽  
Robert Chen
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Basal Ganglia ◽  
Onset Time ◽  
Movement Planning ◽  
Movement Preparation ◽  
Subcortical Structures ◽  
Postoperative Mri ◽  
Deep Brain

Abstract Although it has long been suggested that the basal ganglia and thalamus are involved in movement planning and preparation, there was little direct evidence in humans to support this hypothesis. Deep brain stimulation (DBS) is a well-established treatment for movement disorders such as Parkinson's disease, tremor, and dystonia. In patients undergoing DBS surgery, we recorded simultaneously from scalp contacts and from electrodes surgically implanted in the subthalamic nucleus (STN) of 13 patients with Parkinson's disease and in the “cerebellar” thalamus of 5 patients with tremor. The aim of our studies was to assess the role of the cortico-basal ganglia-thalamocortical loop through the STN and the cerebello-thalamocortical circuit through the “cerebellar” thalamus in movement preparation. The patients were asked to perform self-paced wrist extension movements. All subjects showed a cortical readiness potential (RP) with onset ranging between 1.5 to 2s before the onset of movement. Subcortical RPs were recorded in 11 of 13 with electrodes in the STN and in 4 of 5 patients with electrodes in the thalamus. The onset time of the STN and thalamic RPs were not significantly different from the onset time of the scalp RP. The STN and thalamic RPs were present before both contralateral and ipsilateral hand movements. Postoperative MRI studies showed that contacts with maximum RP amplitude generally were inside the target nucleus. These findings indicate that both the basal ganglia and the cerebellar circuits participate in movement preparation in parallel with the cortex.

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