图4. 24周龄SHJH ^hr 小鼠的心脏组织氧化损伤相关因子分析
注：A，RT-PCR检测氧化应激因子超氧化物歧化酶（Sod）2、Sod3、谷胱甘肽过氧化物酶（Gpx）1和过氧化氢酶（Cat）的mRNA表达水平；B~D，ELISA法检测SOD、GPX和 CAT活性； E，ELISA法检测8-羟基-2'-脱氧鸟苷（8-OHdG）含量表达；F，ELISA法检测丙二醛（MDA）水平。以非早衰的野生型ICR小鼠（WT组）作为对照，n=6，与WT组比较，^*P <0.05。

Figure 4. Analysis of oxidative damage-related factors in cardiac tissue of 24-week-old SHJH ^hr mice
Note： A， RT-PCR was used to measure the mRNA expression levels ofoxidative stress factors superoxide dismutase（Sod）2， Sod3， glutathione peroxidase（Gpx）1， and catalase（Cat）； B to D， ELISA was used to determine the activities of SOD， GPX， and CAT； E， ELISA was used to measure the expression level of 8-hydroxy-2'-deoxyguanosine （8-OHdG）； F， ELISA was used to assess the level of malondialdehyde （MDA）. Wild-type ICR mice without premature aging （WT group） were used as controls， n=6. Compared with the WT group， ^*P <0.05.