Table 1. Metabolite concentrations in the in vivo mouse brain measured with 1H-MRS over a 2*2*3 mm3 and 3*1.2*2.8 mm3 volume of interest in the thalamic region and the prefrontal cortex, respectively.
Thalamus | Prefrontal Cortex | |||||||||||||
Control mouse[mM/l] ± %SD | Aspa-LacZ[mM/l] ± %SD | Change% | Control mouse[mM/l] ± %SD | Aspa-LacZ[mM/l] ± %SD | Change% | |||||||||
GABA | 3.84 | ± | 4 | 2.63 | ± | 10 | −31.4% | 2.65 | ± | 7 | 1.95 | ± | 22 | −26.4% |
Glc | 6.19 | ± | 6 | 4.63 | ± | 12 | −25.2% | 7.19 | ± | 5 | N/A | ± | N/A | N/A |
Tau | 5.50 | ± | 3 | 16.75 | ± | 2 | 204.4% | 11.53 | ± | 2 | 14.12 | ± | 3 | 22.4% |
Gln | 3.65 | ± | 4 | 8.12 | ± | 3 | 122.2% | 2.36 | ± | 6 | 2.38 | ± | 14 | 0.7% |
Glu | 9.28 | ± | 2 | 3.06 | ± | 9 | −67.0% | 11.21 | ± | 2 | 8.25 | ± | 5 | −26.4% |
mI | 8.06 | ± | 2 | 34.70 | ± | 1 | 330.6% | 6.59 | ± | 3 | 11.56 | ± | 5 | 75.4% |
Lac | 5.08 | ± | 4 | 2.55 | ± | 12 | −49.9% | 3.90 | ± | 6 | 3.48 | ± | 16 | −10.9% |
Ch | 2.58 | ± | 2 | 1.30 | ± | 4 | −49.5% | 2.35 | ± | 2 | 2.59 | ± | 5 | 10.4% |
NAA | 11.56 | ± | 2 | 41.13 | ± | 1 | 255.8% | 11.21 | ± | 2 | 19.68 | ± | 3 | 75.5% |
Cr | 9.66 | ± | 1 | 10.75 | ± | 2 | 11.4% | 9.50 | ± | 2 | 9.50 | ± | 4 | 0.0% |
The standard deviation of the metabolite concentrations (SD) corresponds to the Cramér-Rao lower bounds of the LCModel-fit and is given in %. SD-values below 20% are considered reliable. Error bars are derived through the fit-routine and indicate the quality of individual metabolite measurements. Cr: Creatine and Phosphocreatine, NAA: NAA+NAAG, Cho: Phosphocholine and Glycerophosphorylcholine, Glu: Glutamate, Gln: Glutamine, mI: Myo-Inositol, Tau: Taurine, Glc: Glucose.