Table 4.
Comparison of transsulfuration metabolites in plasma of control and TCE-treated mice. Results represent the mean (SD).
Plasma thiols | 0 mg/ml TCE | 0.01 mg/ml TCE | 0.1 mg/ml TCE |
---|---|---|---|
GSH (μM)f | 2.52 (0.17) | 2.14 (0.33) | 1.37 (0.50)*** |
GSSG (μM) | 0.63 (0.12) | 0.91 (0.41) | 1.42 (0.65)* |
GSH/GSSG | 4.12 (0.75) | 2.77 (1.34) | 1.44 (1.35)** |
% oxidized GSH | 33.05 (3.84) | 44.64 (12.27) | 62.35 (18.25)** |
Total GSH | 3.77 (0.34) | 3.96 (0.64) | 4.20 (0.99) |
| |||
CyS (μM)f | 17.33 (2.71) | 20.90 (7.35) | 15.43 (2.15) |
CySSCy (μM) | 21.70 (2.59) | 27.67 (6.31) | 29.02 (3.52)* |
Cys/CySSCy | 0.80 (0.87) | 0.74 (0.12) | 0.54 (0.09)** |
Total CyS | 60.73 (7.37) | 76.23 (19.7)+ | 73.46 (7.77)* |
Total glutathione (GSH) and cysteine (CyS) was calculated as described in Materials and Methods.
Reflects free or unbound thiols remaining after protein precipitation. Results are statistically different from results obtained from controls
p≤0.05,
p≤0.005,
p≤0.0005.
Variance ratios are statistically different (p=0.02).