TY - JOUR
T1 - Fine anionic iron colloid and its use in light and electron microscopic detection of cationic sites in the rat kidney
AU - Ohtsuka, Aiji
AU - Murakami, Takuro
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1986
Y1 - 1986
N2 - Ferric chloride, when boiled with ammonium thiocyanate, ammonia and caco- dylic acid, is converted into a fine anionic iron colloid which consists of 1-1.5 nm electron dense granules and gives a distinct Prussian blue reaction. This colloid allows light and electron microscopic detection of ionized cationic sites in tissues at a pH range of 4.0-9.0. Light and electron micrographs of the rat kidney stained with this colloid are demonstrated. These micrographs indicate that the foot processes of glomerular podocytes and the brush border of the proximal convoluted tubule contain positively-charged groups in their intracellular matrices, and that the foot process plasma membrane fronting the Bowman's capsular space has positively-charged groups. The latter finding, together with our previous study (MURAKAMI et al., 1986), suggests the co-existence of cationic and anionic sites on this foot process surface.
AB - Ferric chloride, when boiled with ammonium thiocyanate, ammonia and caco- dylic acid, is converted into a fine anionic iron colloid which consists of 1-1.5 nm electron dense granules and gives a distinct Prussian blue reaction. This colloid allows light and electron microscopic detection of ionized cationic sites in tissues at a pH range of 4.0-9.0. Light and electron micrographs of the rat kidney stained with this colloid are demonstrated. These micrographs indicate that the foot processes of glomerular podocytes and the brush border of the proximal convoluted tubule contain positively-charged groups in their intracellular matrices, and that the foot process plasma membrane fronting the Bowman's capsular space has positively-charged groups. The latter finding, together with our previous study (MURAKAMI et al., 1986), suggests the co-existence of cationic and anionic sites on this foot process surface.
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U2 - 10.1679/aohc.49.543
DO - 10.1679/aohc.49.543
M3 - Article
C2 - 2436592
AN - SCOPUS:0022831837
VL - 49
SP - 543
EP - 552
JO - Archivum histologicum japonicum
JF - Archivum histologicum japonicum
SN - 0004-0681
IS - 5
ER -