Neuroradiologic Evidence of Pre-Synaptic and Post-Synaptic Nigrostriatal Dopaminergic Dysfunction in Idiopathic Basal Ganglia Calcification: A Case Report
| Autor: | Teruhiko Shimizu, Kenji Ishii, Kiichi Ishiwata, Keiichi Oda, Takahiro Saito, Mitsuru Nakamura, Kunihiro Isse |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
medicine.medical_specialty Catatonia Dopamine Basal ganglia calcification Striatum Basal Ganglia Diseases Internal medicine Basal ganglia medicine Humans Radiology Nuclear Medicine and imaging Radionuclide Imaging business.industry Pre synaptic Dopaminergic medicine.disease Corpus Striatum Pathophysiology Dihydroxyphenylalanine Endocrinology Female Neurology (clinical) Radiopharmaceuticals business Neuroscience medicine.drug |
| Zdroj: | Journal of Neuroimaging. 20:189-191 |
| ISSN: | 1552-6569 1051-2284 |
| DOI: | 10.1111/j.1552-6569.2008.00314.x |
| Popis: | Idiopathic basal ganglia calcification (IBGC) is a neuropathological condition known to manifest as motor disturbance, cognitive impairment, and psychiatric symptoms. The pathophysiology of the psychiatric symptoms of IBGC, however, remains controversial. A previous biochemical study suggested that dopaminergic impairment is involved in IBGC. We thus hypothesized that dopaminergic dysfunction might be related with the psychiatric manifestations of IBGC. We used positron emission tomography to measure glucose metabolism and dopaminergic function in the basal ganglia of an IBGC patient with psychiatric symptoms. The results showed that widespread hypometabolism was evident in the frontal, temporal, and parietal cortices while the decline in dopaminergic function was severe in the bilateral striatum. The functional decline of the dopamine system in the calcified area of the bilateral striatum and the disruption of cortico-subcortical circuits may contribute to clinical manifestations of IBGC in our patient. |
| Databáze: | OpenAIRE |
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