Neurology
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To determine the frontal lobe proton magnetic resonance spectroscopy (1H MRS) abnormalities in asymptomatic and symptomatic carriers of microtubule-associated protein tau (MAPT) mutations. ⋯ Frontal lobe neurochemical alterations measured with 1H MRS precede the symptom onset in MAPT mutation carriers. Frontal lobe 1H MRS is a potential biomarker for early neurodegenerative processes in MAPT mutation carriers.