Table 1: The impact of zinc on GSH, LPO, and H2O2 levels in the sublingual gland of rats exposed to cadmium.

Nonenzymatic antioxidant
GSH
(nmol/mg of protein)
Oxidative stress index
LPO
(nmol/mg of protein)
H2O2
(nmol/mg of protein)

Control1.881 ± 0.8000.122 ± 0.01121.320 ± 2.343
30 mg Zn/dm31.926 ± 0.1810.095 ± 0.00819.110 ± 0.617
60 mg Zn/dm31.838 ± 0.5700.093 ± 0.01515.740 ± 1.336a
5 mg Cd/dm31.433 ± 0.086a‡b‡c0.263 ± 0.034a†b‡c†26.930 ± 1.000ab‡
5 mg Cd/dm3 + 30 mg Zn/dm31.933 ± 0.136d†0.113 ± 0.020d†17.480 ± 0.720d‡
5 mg Cd/dm3 + 60 mg Zn/dm32.334 ± 0.144a†bc†d‡e†0.104 ± 0.012d†18.020 ± 1.248d‡
50 mg Cd/dm31.340 ± 0.046a†b‡c†e‡f‡0.376 ± 0.066a‡b‡c‡de‡f‡41.800 ± 2.877a‡b‡d‡f‡
50 mg Cd/dm3 + 30 mg Zn/dm31.715 ± 0.067f‡g0.233 ± 0.045ab†c†fg†21.860 ± 1.480dg‡
50 mg Cd/dm3 + 60 mg Zn/dm31.739 ± 0.052f‡g0.167 ± 0.023deg‡17.540 ± 1.963d‡g‡

The values are arithmetic means ± SEM. ; ; as compared to acontrol, b30 mg Zn/dm3, c60 mg Zn/dm3, d5 mg Cd/dm3, e5 mg Cd/dm3 + 30 mg Zn/dm3, f5 mg Cd/dm3 + 60 mg Zn/dm3, g50 mg Cd/dm3, and h50 mg Cd/dm3 + 30 mg Zn/dm3.