Table 2.

Ratios of metabolite labeling and cycling.

Ratios	Sham Ipsi	Sham Contra	TBI Ipsi	TBI Contra
Metabolite ratios
Glu C4/Gln C4	2.12 ± 0.09	2.08 ± 0.1	2.36 ± 0.09	2.50 ± 0.15
Asp C3/Glu C4	0.14 ± 0.01	0.17 ±0.02	0.13 ± 0.01	0.14 ± 0.01
Total GABA/Total Glu	0.20 ± 0.02	0.20 ± 0.03	0.15 ± 0.01	0.16 ± 0.02
Cycling ratios
Glu C3/Glu C4	0.77 ± 0.07	0.87 ± 0.08	0.66 ± 0.03	0.67 ± 0.15
GABA C3/GABAC2	0.91 ± 0.06	1.06 ± 0.06	0.76 ± 0.08	0.90 ± 0.09
Gln C3/Gln C4	0.57 ± 0.04	0.62 ± 0.03	0.48 ± 0.03	0.54 ± 0.05
TCA cycling $\frac{Glu \left(C\mathbf{2}+C\mathbf{3}\right)}{Glu C\mathbf{4}}$	1.43 ± 0.13	1.55 ± 0.14	1.30 ± 0.06	1.28 ± 0.11