常规 HE 染色的切片经酸性高锰酸钾液退色处理后,可重行 HE、VG、Foot 及AgNOR 染色。而对 HE 切片再行 Feulgen染色,我们在实验中发现 DNA 显色欠佳,得不到较满意的结果,由此对退色过程中各个步骤进行分组实验,以探讨此过程中影响Feulgen 染色的原因及应用方法。 The sections stained with conventional HE stained with acidic potassium permanganate solution can be re-examined for HE, VG, Foot and AgNOR staining. However, we performed Feulgen staining on HE slices. We found that the color development was not good and we could not obtain satisfactory results. Therefore, each step in the discoloration process was grouped to explore the causes of Feulgen staining in this process. And application methods.