After cytarabine method, a large number of cells died and no positive reaction cells were found by immunostaining. 阿糖胞苷法阿糖胞苷作用后细胞大量死亡，免疫染色几乎未见阳性反应细胞存在。
Scientists say that mass bee deaths may be caused by viruses that disrupt gene expression. 科学家称造成蜜蜂大量死亡的原因可能是病毒造成的基因表达分裂。
