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Title: | Use of eriochrome cyanine R in routine histology and histopathology: Is it time to say goodbye to hematoxylin? | Authors: | Dušan Stefanović M. Stefanović Dušan Lalošević |
Keywords: | APUD;DNES;diffuse neuroendocrine system;eosin;eriochrome;hematoxylin;mordant blue 3;myelin staining;nuclear staining | Issue Date: | 1-Jan-2015 | Journal: | Biotechnic and Histochemistry | Abstract: | © 2015 The Biological Stain Commission. Eriochrome cyanine R (ECR) is a synthetic anionic dye that forms complexes with cations such as iron. We found that an iron-ECR (Fe-ECR) mixture provided either nuclear or myelin staining depending on the differentiator used. Selective nuclear staining was obtained by differentiation in an aqueous HCl solution, pH 0.95, followed by a wash in slightly alkaline tap water; the pH difference facilitated control of differentiation. When used with an eosin B counterstain, results were nearly indistinguishable from standard hematoxylin and eosin (H & E) staining. Nuclear staining with Fe-ECR provides tinctorial features similar to regressive aluminum-hemateins as well as resistance to acidic solutions such as those of iron hemateins. Fe-ECR also stained selectively intestinal cells of the diffuse neuroendocrine system (DNES). In addition to its use as an H & E substitute, acid differentiated Fe-ECR produced acid-resistant and selective nuclear counterstaining in combination with Alcian blue, and in the Papanicolaou and van Gieson techniques. With alkali differentiation, Fe-ECR produced selective myelin staining, which was compatible with neutral red counterstaining. Myelin sheaths were stained aqua blue. Fe-ECR could be used for both cytological and histological samples, and was suitable for use in automated tissue stainers. ECR also is less expensive than hematoxylin. Hematoxylin still may be preferred as a nuclear counterstain for some immunostaining methods for which Fe-ECR mixtures probably are too acidic. | URI: | https://open.uns.ac.rs/handle/123456789/6617 | ISSN: | 10520295 | DOI: | 10.3109/10520295.2015.1057765 |
Appears in Collections: | MDF Publikacije/Publications |
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