Glucose metabolism in the cortical and subcortical brain structures in multiple system atrophy and Parkinson's disease: A positron emission tomographic study

Makoto Otsuka, Yuichi Ichiya, Yasuo Kuwabara, Shinichi Hosokawa, Masayuki Sasaki, Tsuyoshi Yoshida, Toshimitsu Fukumura, Motohiro Kato, Kouji Masuda

Research output: Contribution to journalArticle

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Abstract

The brain glucose metabolism was studied by PET with 18F-FDG in 11 patients with multiple system atrophy (MSA) and 12 patients with idiopathic Parkinson's disease (PD). Seven of the 11 MSA patients were diagnosed as having olivopontocerebellar atrophy, two had striatonigral degeneration, while two demonstrated Shy-Drager syndrome. The glucose metabolic rates for each region in the PD patients showed no difference from the normal controls. The frontal, temporal and parietal cortical glucose metabolic rates and the caudate, the putaminal, the cerebellar and the brainstem glucose metabolic rates in the MSA patients decreased significantly from the controls. The atrophy of the cerebellum and the brainstem in the MSA patients were scored by MRI. The cerebellar and brainstem glucose metabolism in the MSA patients decreased as the atrophy score in such regions advanced in each group; however, some patients with no atrophy showed a decreased glucose metabolism. Although the cerebellar and the brainstem glucose metabolism decreased in all MSA patients, such a decrease was not observed in the SND patients. The decrease in the glucose metabolism for the non-cortical regions in the MSA patients seems to be due to a diffuse depletion of the neurons not restricted to the nigrostriatal neurons. Deafferentation to the cerebral cortices seems to result in a decreased cortical metabolism. The differences in the glucose metabolism between MSA and PD as assessed by PET may be caused by the pathophysiological differences between MSA and PD, and such differences therefore appear to be useful when making a differential diagnosis between MSA and PD. The relative sparing of the brainstem and cerebellar glucose metabolism is considered to be a feature of patients with SND.

Original languageEnglish
Pages (from-to)77-83
Number of pages7
JournalJournal of the Neurological Sciences
Volume144
Issue number1-2
DOIs
Publication statusPublished - Dec 1 1996

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Multiple System Atrophy
Parkinson Disease
Electrons
Glucose
Brain
Brain Stem
Atrophy
Striatonigral Degeneration
Shy-Drager Syndrome
Olivopontocerebellar Atrophies
Neurons
Fluorodeoxyglucose F18
Cerebral Cortex
Cerebellum
Differential Diagnosis

All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology

Cite this

Glucose metabolism in the cortical and subcortical brain structures in multiple system atrophy and Parkinson's disease : A positron emission tomographic study. / Otsuka, Makoto; Ichiya, Yuichi; Kuwabara, Yasuo; Hosokawa, Shinichi; Sasaki, Masayuki; Yoshida, Tsuyoshi; Fukumura, Toshimitsu; Kato, Motohiro; Masuda, Kouji.

In: Journal of the Neurological Sciences, Vol. 144, No. 1-2, 01.12.1996, p. 77-83.

Research output: Contribution to journalArticle

Otsuka, Makoto ; Ichiya, Yuichi ; Kuwabara, Yasuo ; Hosokawa, Shinichi ; Sasaki, Masayuki ; Yoshida, Tsuyoshi ; Fukumura, Toshimitsu ; Kato, Motohiro ; Masuda, Kouji. / Glucose metabolism in the cortical and subcortical brain structures in multiple system atrophy and Parkinson's disease : A positron emission tomographic study. In: Journal of the Neurological Sciences. 1996 ; Vol. 144, No. 1-2. pp. 77-83.
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