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  • Title: Use of eriochrome cyanine R for routine histology and histopathology: an improved dichromatic staining procedure.
    Author: Stefanović D.
    Journal: Biotech Histochem; 2015; 90(6):470-4. PubMed ID: 26140653.
    Abstract:
    A modified dichromatic iron-eriocyanine R (Fe-ECR) staining method is described. Staining obtained with this new technique generally was similar to that of hematoxylin and eosin (H & E). Cell nuclei were stained blue. Cardiac, smooth and skeletal muscle, and red blood cells, were stained different shades of red. Collagen fibers were stained different shades of orange, usually faintly. Decalcified bony tissue was stained pinkish violet. Epithelial cells were strongly stained deep shades of red, magenta and violet. Cartilage matrix, and goblet and mast cells were unstained. Although Fe-ECR staining differed too much from standard H & E staining to be a substitute for diagnostic purposes, the dichromatic method described might usefully replace van Gieson or trichrome stains, especially if muscle is of interest. A pH 0.95 staining solution was used to differentiate initially over-stained sections followed by washing in distilled water. This dichromatic technique is easier to perform and more precisely controllable than other ECR dichromatic methods. The entire procedure can be completed in less than 5 min. The technique has the advantages of greater technical simplicity and speed, a larger range of polychromasia, and a longer shelf-life than H & E. ECR also is more reliably available than hematoxylin and usually is less expensive.
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