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An acetylated derivative of aspartate found in the brain. Used as a marker in brain nuclear magnetic resonance and in neuroimaging.
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At MR spectroscopy, the lesions will show decreased N-acetyl aspartate (NAA) and elevated choline.
An earlier study by other investigators looked at the levels of N-acetyl aspartate, a marker of neuronal viability, before and after 4 weeks of lithium therapy both in 12 untreated bipolar patients and 9 healthy controls.
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