Comparative Study
doi: 10.1002/aja.1001550103.
The Clara cell: a comparative ultrastructural study in mammals
- PMID: 463790
- DOI: 10.1002/aja.1001550103
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Comparative Study
The Clara cell: a comparative ultrastructural study in mammals
Am J Anat.
1979 May.
Abstract
Clara cells in the terminal bronchoiles of mouse, rat, rabbit, calf and human were compared by light, transmission and scanning microscopy, and species-differences were clearly present. Mouse Clara cells were most numerous and mouse and rabbit Clara cells had large dense mitochondria. Rabbit and calf had glycogen in Clara cells and rat Clara cells had the most variability in secretory granules, some of which had a crystalline structure. Calf Clara cells had deeply indented nuclei. Human Clara cells had the most prominent nucleoli and lacked smooth endoplasmic reticulum, which was a prominent feature of most other species. No evidence of apical extrusion or apocrine secretion of Clara cell secretory granules was observed.
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