Comparative morphology of juxtaglomerular cells. II. The presence of juxtaglomerular cells in embryos

Abstract
Earlier work failed to establish the presence of juxtaglomerular cells (JG-cells) in the kidney of the hog embryo, although renin was found in both the embryonic metanephros and mesonephros. By the use of the fluorescent-antibody technique and the Bowie stain, mature granulated JG-cells were found in both instances. These cells possessed the same anatomical relationships as the JG-cells in the adult hog. These findings offer further evidence for the presence of renin in juxtaglomerular cells. JG-cells were also identified in the embryonic metanephros of the rat.

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