Table 5.

Changes in the p-IRS-1/IRS-1 and p-AKT/AKT ratios in the rat liver ($\stackrel{\circledR }{x}\pm s$).

	p-IRS-1/IRS-1	p-AKT/AKT
Control group	0.215 ± 0.041	0.661 ± 0.041
0.75 mg/kg PM2.5 group	0.344 ± 0.038a	0.653 ± 0.056
2.5 mg/kg PM2.5 group	0.536 ± 0.036ab	0.544 ± 0.098ab
5 mg/kg PM2.5 group	0.724 ± 0.076abc	0.370 ± 0.083abc
10 mg/kg PM2.5 group	0.800 ± 0.018abcd	0.261 ± 0.046abcd
F	144.861	33.347
p	<0.001	<0.001

Note: compared to the control group, ^ap < 0.05; compared to the 0.75 mg/kg PM2.5 group, ^bp < 0.05; compared to the 2.5 mg/kg PM2.5 group, ^cp < 0.05; compared to the 5 mg/kg PM2.5 group, ^dp < 0.05.