کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4336027 1295193 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measuring N-acetylaspartate synthesis in vivo using proton magnetic resonance spectroscopy
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Measuring N-acetylaspartate synthesis in vivo using proton magnetic resonance spectroscopy
چکیده انگلیسی

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).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Neuroscience Methods - Volume 172, Issue 1, 15 July 2008, Pages 8–12
نویسندگان
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