Barack Obama Sr. died in a car accident when George was just 6 months old.
当乔治只有6个月大时，老奥巴马死于车祸。
Results IL 6 up regulated the expression of CD14 and down regulated the expression of SR in a time and dose dependent fashion at the level of mRNA.
结果在基因转录水平，IL 6对CD14表达呈时间剂量依赖性上调，对SR的表达呈进行性下调；
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