Institute of Medical Chemistry and Institute of Pathology, University of Uppsala, Sweden (Received 26 March 1958) IRONis found in the normal brain as haemin iron in haemoglobin and in ironcontaining enzymes and as non-haemin iron. At least part of the non-haemin iron can be shown by histochemical methods, the prussian blue and Turnbull blue reactions being most commonly used to demonstrate it. GUIZZEITI (1915) examined the iron reactions seen when thick, macroscopic brain sections were treated with potassium ferrocyanide or ammonium sulphide. He found that certain parts of the brain gave a stronger staining reaction than others: the globus pallidus, substantia nigra, red nucleus and dentate nucleus were most intensely stained. The most extensive and systematic investigations of histologically demonstrable iron in the brain were (1922). Using thick, macroscopic sections SPATZ was able to conducted by SPATZ divide the centres of the central nervous system into four groups according to their iron content. The first group comprised the globus pallidus and substantia nigra, which gave the most intense and invariable iron reaction. The red nucleus, putamen, caudate nucleus, dentate nucleus and the subthalamic body, with constant but somewhat weaker staining properties, formed the second group. The structures included
Journal of Neurochemistry – Wiley
Published: Oct 1, 1958
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