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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1988-8-24
pubmed:abstractText
We previously reported generalized cerebral glucose hypometabolism in amyotrophic lateral sclerosis (ALS) patients with upper motor neuron disease, using positron emission tomography (PET) with [18F]2-fluoro-2-deoxy-D-glucose. The present article presents a more detailed regional analysis of the hypometabolism, including measurements of the motor-sensory cortex at higher levels than used earlier. The analysis is based on 19 PET studies of 12 patients with ALS, four of whom had only lower motor neuron involvement, and 11 studies of age-matched control subjects. A brain size correction was included to eliminate differences in metabolism related to brain size but not to pathology. The eight ALS patients with both upper and lower motor neuron disease showed generalized hypometabolism, compared with the normal control subjects, that was greatest in the motor-sensory cortex and putamen. The motor-sensory deficit was strongly correlated with length of disease, and a marked sequential reduction was seen in repeat studies on four of the patients. There was also significant right-left asymmetry in these scans. No cerebral hypometabolism was seen in the four ALS patients without upper motor neuron involvement. Although the observed motor-sensory deficit in ALS is consistent with histopathological findings, the more generalized hypometabolism and the asymmetry suggest more widespread effects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0363-8715
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
630-6
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Cortical motor-sensory hypometabolism in amyotrophic lateral sclerosis: a PET study.
pubmed:affiliation
National Institute of Neurological and Communicative Disorders and Stroke, Bethesda, MD 20892.
pubmed:publicationType
Journal Article