Table 3.
Ischemia-hypoxia | Ischemia-hyperoxia | ||||
---|---|---|---|---|---|
Metabolite | Control | Right | Left | Right | Left |
Alanine | 0.64 ± 0.04 | 0.76 ± 0.08 | 0.73 ± 0.19 | 0.73 ± 0.02 | 0.50 ± 0.04 |
Choline | 3.75 ± 0.05 | 3.59 ± 0.06 | 3.88 ± 0.23 | 4.34 ± 0.25 | 4.32 ± 0.29 |
Creatine | 10.64 ± 0.10 | 11.81 ± 0.25** | 12.08 ± 0.61 | 12.97 ± 0.60* | 13.21 ± 1.00* |
GABA | 1.72 ± 0.21 | 1.76 ± 0.20 | 2.06 ± 0.54 | 2.52 ± 0.50* | 2.02 ± 0.28 |
Glutamate | 14.55 ± 0.18 | 14.91 ± 0.29 | 15.58 ± 1.50 | 16.17 ± 0.80* | 16.02 ± 0.60* |
Lactate | 12.10 ± 0.51 | 16.56 ± 0.49*** | 17.87 ± 0.33*** | 16.03 ± 1.20** | 15.73 ± 0.85** |
Myo-inositol | 5.67 ± 0.08 | 8.56 ± 0.40* | 8.18 ± 1.14* | 8.42 ± 0.90** | 8.22 ± 0.80** |
N-acetylaspartate | 10.15 ± 0.21 | 11.01 ± 0.62 | 11.47 ± 0.85 | 11.85 ± 0.41 | 11.53 ± 0.44 |
Concentrations of metabolites (mmol/kg w/w) in young rats, under normoxic condition (control), ischemia-hypoxia, and ischemia-hyperoxia. Data are means ± SE (n = 10 rats/group). Values, determined by proton MRS as outlined in the Methods, are given for the right (ipsilateral to cerebral ischemic injury) and left (contralateral) hemisphere. *P < 0.05, **P < 0.01, and ***P < 0.001 compared with controls.