کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4336027 | 1295193 | 2008 | 5 صفحه PDF | دانلود رایگان |

N-Acetylaspartate (NAA) is an important marker of neuronal function and viability that can be measured using magnetic resonance spectroscopy (MRS). In this paper, we proposed a method to measure NAA synthesis using proton MRS with infusion of uniformly 13C-labeled glucose, and demonstrated its feasibility in an in vivo study of the rat brain. The rate of 13C-label incorporation into the acetyl group of NAA was measured using a localized, long echo-time proton MRS method. Signals from the 13C satellites of the main NAA methyl protons at 2.02 ppm were continuously monitored for 10 h. Quantification of the data based on a linear kinetic model showed that NAA synthesis rate in isoflurane-anesthetized rats was 0.19 ± 0.02 μmol/g/h (mean ± standard deviation, n = 12).
Journal: Journal of Neuroscience Methods - Volume 172, Issue 1, 15 July 2008, Pages 8–12