RESUMO
Objective To study the relationship between APOBEC3G mRNA level in peripheral blood mononuclear cells (PBMC) and serum hepatitis C viral RNA level in patients with chronic hepatitis C infection. Methods TaqMan real-time fluorescence relative quantitative polymerase chain reaction (RT-PCR) was used to quantify APOBEC3G mRNA levels in PBMC from 49 patients with chronic hepatitis C (CHC) and 31 healthy subjects. The relationship between APOBEC3G mRNA level and hepatitis C virus (HCV) viral load was analyzed. SPSS11. 0 statistics software was used for t test and regression analysis. Results APOBEC3G mRNA level in CHC patients [(1.5×10-5±1.9×10-5 ) copy/mL] was significantly lower than that [( 5. 2 × 10-5 ± 5. 5 × 10-5 ) copy/mL] in the healthy control subjects (t=-3.005, P＜0.01). While APOBEC3G mRNA level was not related with HCV viral loads (r=-0.082, P＞0.05). Conclusion HCV has an inhibitive effect on APOBEC3G expression, whereas APOBEC3G doesn't affect HCV replication directly in vivo.