EFFECT OF VASCULAR PERFUSION FIXATION ON ULTRASTRUCTURE OF JUXTAGLOMERULAR APPARATUS OF RAT

  • 1 January 1975
    • journal article
    • research article
    • Vol. 23  (2) , 99-109
Abstract
After fixation by low pressure retrograde perfusion the EM picture of the rat JGA [juxtaglomerular apparatus] was studied and compared with the picture obtained after fixation by dripping and immersion. The most conspicuous difference was the presence of the basal compartments of the macula densa cells, which might lend EM support to the tubulo-glomerular feedback theory. Among the JG granular cells, desmosome-like connected structures were seen. Crystalline and granule in granules specific secretion forms were frequent in the epitheloid cells.