نتایج جستجو برای: acetylaspartate
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SUMMARY Morphometry and spectroscopy were performed in 3 patients with fragile X-associated tremor/ataxia syndrome (FXTAS). The brain stem and cerebellum were atrophic and satisfied criteria for olivopontocerebellar atrophy in 2 patients. However, the vermis was relatively spared and the basis pontis maintained its oval shape. The only spectroscopic abnormality was a decrease of the pontine N-a...
observed neither on metabolic deprivation nor on depolarization, but only after treatment with excitotoxins [7,9]. In related experiments (results not shown) using ‘T-m.r. to study flux through metabolic pathways, we observed quite different patterns between these various insults. NMDA caused rapidly decreased N-acetylaspartate and increased lactate, with slow decreases in pool sizes of amino a...
A dysfunction of the orexin (hypocretin) system in the hypothalamus has recently been linked to the pathogenesis of narcolepsy. The authors used in vivo proton MR spectroscopy to assess the N-acetylaspartate (NAA) content in the hypothalamus of narcoleptic patients. Hypothalamic NAA/creatine-phosphocreatine was reduced in narcoleptic patients compared with control subjects (p < 0.01). Hypothala...
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