Frank Roels, Peter van der Spek, Marina Pauwels (2014) CIL:47811, Homo sapiens, duct epithelial cell, goblet cell of epithelium of small intestine, erythrocyte. CIL. Dataset

Human duodenal epithelium, at the level of the crypt. Fixation was performed in buffered formal-calcium. Peroxisomes are stained with DAB by their catalase activity at pH 10.5, postosmicated and embedded in epon. 2 µm plastic section. Peroxisomes are the very small black granules located at the apical side of the elongated epithelial nuclei. A few rounded goblet cells are recognized. The brush border is faintly seen. In the subepithelial capillaries, 4 large structures are erythrocytes.

人类十二指肠上皮细胞，位于腺窝水平。固定处理采用缓冲的钙化甲醛溶液。通过pH 10.5时的过氧化物酶活性，以DAB染色过氧化物酶体，并进行后渗透和环氧树脂包埋。切片厚度为2微米。过氧化物酶体位于延长上皮细胞核的顶端，呈现出极小的黑色颗粒。可识别少数圆形的杯状细胞。刷状缘模糊可见。在皮下毛细血管中，可见四个大型结构，即为红细胞。