Hematoxylin


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Related to Hematoxylin: eosin, hematoxylin bodies

hematoxylin

[‚hē·mə′täk·sə·lən]
(organic chemistry)
C16H14O6 A colorless, crystalline compound occurring in hematoxylon; upon oxidation, it is converted to hematein which forms deeply colored lakes with various metals; used as a stain in microscopy.

Hematoxylin

 

a dye used in microscopy for staining plant and animal tissues. Hematoxylin is extracted by ether from the colored wood of the logwood tree, which is native to Central America and the Antilles Islands. In the course of its preparation for use in microscopy, the substance is “matured,” or oxidized to hematein, which stains cell nuclei, chromosomes, and cell membranes a blue or blue-black color.

REFERENCE

Romeis, B. Mikroskopicheskaia tekhnika. Moscow, 1953. (Translated from German.)
References in periodicals archive ?
This classification is based on the findings of hematoxylin and eosin staining, site, pattern and intensity on immunofluorescence staining, and features seen on electron microscopy from renal biopsy specimens.10 This study however excluded Class VI lupus nephritis.
In the jugulotympanic paraganglioma, nests and trabeculae are composed of small to medium-sized cells with ovoid nuclei and abundant pink cytoplasm within a rich vascular network, characteristic of the Zellballen pattern (hematoxylin and eosin, original magnification x20).
Immunohistochemical reaction (IHC) with 3,3'-diaminobenzidine (DAB) chromogen and hematoxylin counterstain.
Histopathologic examination of hematoxylin and eosin-stained liver sections revealed extensive areas of necrosis and cellular debris with associated predominately granulocytic infiltrates scattered throughout the hepatic parenchyma.
During the analysis of the histological structure of the blastema tissue following the Hematoxylin & Eosin staining, tissue disruption and loss of cellular integrity are observed for the samples fixed with NBF (Fig.
Caption: Figure 3: Biopsies of the stomach show loss of parietal cells, mild glandular disarray, acute inflammation, and apoptotic activity (hematoxylin and eosin, original magnification 200x); biopsies of the duodenum show absence of goblet cells and Paneth cells (hematoxylin and eosin, original magnification 200x); biopsies of the terminal ileum are similar to the duodenum.
[4] Hematoxylin, which is obtained from the Mexican tree Haematoxylon campechianum, is an example of a natural dye that is widely used in histology and histochemistry, while eosin is a synthetic dye also used in histology.
Hematoxylin and eosin stains showed nests of cells with eosinophilic cytoplasm separated by a hyalinized stroma, with no evidence of anaplasia or invasion, consistent with a Paraganglioma.
The assessment of cervical tissue samples has been traditionally done using the slide-based hematoxylin and eosin (H&E) stain, but the method of interpretation is subjective and there is diagnostic variability from pathologist to pathologist.
A: Spermatic cord containing a 5-mm nodule of ectopic adrenal cortical tissue, surrounded by a connective tissue capsule, composed of zona fasciculate and zona glomerulosa (hematoxylin and eosin x40).
In addition to examining the basic anatomy of the host-parasite relationship with Harris hematoxylin [HH], a variety of stains were selected to test for acidic mucosubstances (alcian blue pH 1.0 [AB1], alcian blue pH 2.5 [AB2.5], toluidine blue [TB]), neutral sugars (periodic acid-Schiff [PAS]), DNA (Feulgen nuclear reaction or HCL-Schiff [FL]), proteins (ninhydrin-Schiff [NS], Ward's protein stain [WPS]), lipids (osmium tetroxide [OS]), and tyrosine/melanin (ferro-ferricyanide [FF]).