Rapid Staining of Juxtaglomerular Cell Granules and Renal Tubular Mitochondria for Light Microscopy

THE methods in use for staining renal tissue for assessment of the juxtaglomerular index require either prolonged fixation or staining or both. We wish to report a technique which has the advantages of rapidity, staining contrast of the juxtaglomerular granules adequate for counting under the light microscope, and the simultaneous preservation, and staining of renal tubular mitochondria.