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. 1992 Jun;268(3):567-70.
doi: 10.1007/BF00319164.

Non-granulated peripolar cells exist in the rat glomerulus

I Downie  1 , D S Gardiner, T T Downie, I W Gibson, C Kenyon, I A More, G B Lindop
Affiliations

Non-granulated peripolar cells exist in the rat glomerulus

I Downie et al. Cell Tissue Res. 1992 Jun.

Abstract

The peripolar cell is a unique cell type in the mammalian glomerulus. Peripolar cells are said to be identifiable during light microscopy by their cytoplasmic granules and by their position at the vascular pole; and during scanning electron microscopy by their distinctive surface morphology. We used both techniques to count peripolar cells in 6 normal rat kidneys. Scanning microscopy revealed that 55(+/- 5)% of glomeruli contained at least one peripolar cell whereas light microscopy revealed granulated peripolar cells in only 4(+/- 2)% of glomeruli. Vascular poles which contained peripolar cells previously identified by scanning were then examined by light and by transmission electron microscopy. Serial sections through these peripolar cells demonstrated the absence of cytoplasmic granules. Our observations suggest that the majority of peripolar cells in the rat contain no granules.

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