Table 5.

Effects of carbon dots on T lymphocyte subsets in spleen of BALB/c mice

Groups	CD4+ (%)	CD8+ (%)	CD4+/CD8+
Saline	10.85 ± 1.15	5.47 ± 0.62	1.99 ± 0.17
Carbon dots
2 mg/kg	16.05 ± 0.24**↑	9.89 ± 0.40**↑	1.63 ± 0.09*↓
10 mg/kg	15.77 ± 0.59**↑	9.16 ± 0.28**↑	1.73 ± 0.12
50 mg/kg	16.56 ± 0.28**↑	9.65 ± 0.44**↑	1.72 ± 0.05

The effects were recorded 9 days after administration. The data are presented as mean ± standard deviations, n = 5. *P < 0.05 and **P < 0.01 compared with the saline group (control). Significant difference was calculated by one-way ANOVA using SPSS19.0.