Table 2.

Concordance between test agents.

	Chlorpyrifos vs. diazinon	Chlorpyrifos vs. dieldrin	Chlorpyrifos vs. Ni2+	Diazinon vs. dieldrin	Diazinon vs. Ni2+	Dieldrin vs Ni2+
All oxidative stress- and glutathione-related genesa	r = 0.40	r = 0.37	r = 0.11	r = 0.62	r = 0.20	r = 0.30
	p < 0.001	p < 0.003	NS	p < 0.0001	NS	p < 0.02
cat, sod	r = −0.66	r = −0.62	r = 0.53	r = 0.51	r = −0.52	r = −0.08
	p < 0.05	p < 0.05	NS	NS	NS	NS
All glutathione-related genes	r = 0.46	r = 0.43	r = 0.13	r = 0.63	r = 0.22	r = 0.31
	p < 0.0004	p < 0.002	NS	p < 0.0001	NS	p < 0.03
All glutamate receptor genes	r = 0.02	r = 0.02	r = 0.03	r = 0.58	r = 0.23	r = 0.56
	NS	NS	NS	p < 0.0001	NS	p < 0.0001
Ionotropic glutamate receptors	r = 0.05	r = 0.06	r = 0.02	r = 0.59	r = 0.25	r = 0.60
	NS	NS	NS	p < 0.0001	NS	p < 0.0001
Metabotropic glutamate receptors	r = 0.09	r = −0.37	r = −0.02	r = 0.60	r = 0.05	r = 0.31
	NS	NS	NS	p < 0.02	NS	NS
All genes	r = 0.20	r = 0.18	r = 0.04	r = 0.60	r = 0.21	r = 0.42
	p < 0.04	p < 0.05	NS	p < 0.0001	p < 0.03	p < 0.0001

NS, not significant.

^aAll genes in the cat, sod, gss, gsr, gpx, and gst families.