The light cells and dark cells can be observed in the collecting, proximal and distal tubule.
集合管、近端、远端小管均可见明、暗两种类型上皮细胞。
During the 8 weeks, the proximal and distal tubule had formed and the tubule had developed well during the 10 weeks.
胚胎第8周近、远端小管已形成，第10周已有小管发育较好。
The results of immunohistochemistry revealed that ASBT was expressed at brush border membrane of proximal renal tubular cells, but not expressed in distal tubule and renal interstitium.
免疫组化染色表明ASBT蛋白主要表达于人近端肾小管上皮的刷状缘侧，在间质及远端小管没有表达。
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