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  • Title: [Rapid method of silver nitrate impregnation of elements of the peripheral nervous system suitable for celloidin and paraffin sections].
    Author: Kolomiĭtsev AK, Chaikovskiĭ IuB, Tereshchenko TL.
    Journal: Arkh Anat Gistol Embriol; 1981 Aug; 81(8):93-6. PubMed ID: 6172096.
    Abstract:
    According to the method of neural elements impregnation in the authors' modification, the object is fixed for 6-12 h in Lillie fluid cooled to 4 degrees C. Then the object is kept under tap water for 2-6 h. Frozen sections are prepared and kept in pure pyridine for 1-6 h. When the sections are embedded into paraffin or celloidin, they are put into alcohol solutions gradually decreasing their concentration until water is reached, then put into pyridine. In order to remove cellulose, the celloidin sections are treated in 3 portions of pyridine (in the 1st and 2nd-for 10 min, and in the 3d-for 6 h). Then they are washed under tap water for 2-4 h and in distilled water for 30-40 min. Further treatment is performed according to the methods by Bielschowsky - Gros, Kampos or Rasskazova. Excess silver is removed by treating the sections in 2% ammonium persulfate under the microscope control (the process is stopped by putting the sections into 7% sodium hyposulfate for 10 min). Then the sections are treated in 0.1% aurum chloride, in 5% hyposulfite to reveale the tissue background [corrected] and by means of routine histological techniques either after Brashet, Hale, PAS-positive reaction or other methods applied after fixation in Lillie fluid.
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