Biomaterial Database

Hematoxylin-lac-curcuma polychrome stain for mucin. 1995

H Sriplung, and S Kietthubthew, and P Boonyaphiphat

Department of Pathology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand.

A polychrome method for detection of mucin substance in paraffin section is produced by sequential stepwise staining of hematoxylin, crude lac extract (Laccifer lacca), and crude curcuma extract (khamin shan-Curcuma longa). The name LacCur stain is proposed. After a tissue section is deparaffinized and rehydrated, it is stained with Weigert's hematoxylin for 7 minutes. After a quick wash, it is stained for at least 3 hours with lac dye mordanted with aluminum chloride. Washed again and premordanted with ferric chloride for 1 minute, in the last step, it is counterstained with curcuma dye for 5 minutes. With this staining method, the nuclei are stained black, mucin deep red, and organelles and ground substances brownish yellow. The method and outcome colors are comparable to the widely used Mayer's mucicarmine staining method. It costs less than the Mayer's mucicarmine staining method and the procedure is not complicated.

UI	MeSH Term	Description	Entries
D009077	Mucins	High molecular weight mucoproteins that protect the surface of EPITHELIAL CELLS by providing a barrier to particulate matter and microorganisms. Membrane-anchored mucins may have additional roles concerned with protein interactions at the cell surface.	Mucin
D002329	Carmine	Coloring matter from the insect Coccus cacti L. It is used in foods, pharmaceuticals, toiletries, etc., as a dye, and also has use as a microscopic stain and biological marker.	Coccinellin,Natural Red 4,7-Glucopyranosyl-3,5,6,8-tetrahydroxyl-1-methyl-9,10-dioxoanthracene-2-carboxylic Acid,C.I. 75470,Carminic Acid,Cochineal Dye,Dye, Cochineal
D004396	Coloring Agents	Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS.	Coloring Agent,Dye,Dyes,Organic Pigment,Stain,Stains,Tissue Stain,Tissue Stains,Organic Pigments,Pigments, Inorganic,Agent, Coloring,Inorganic Pigments,Pigment, Organic,Pigments, Organic,Stain, Tissue,Stains, Tissue
D006416	Hematoxylin	A dye obtained from the heartwood of logwood (Haematoxylon campechianum Linn., Leguminosae) used as a stain in microscopy and in the manufacture of ink.	Hydroxybrazilin,Haematoxylon,Hematoxiline,Hemotoxylin,Hydroxybrasilin
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001391	Azo Compounds	Organic chemicals where aryl or alkyl groups are joined by two nitrogen atoms through a double bond (R-N	Azo Dye,Azo Dyes,Compounds, Azo,Dye, Azo,Dyes, Azo
D013194	Staining and Labeling	The marking of biological material with a dye or other reagent for the purpose of identifying and quantitating components of tissues, cells or their extracts.	Histological Labeling,Staining,Histological Labelings,Labeling and Staining,Labeling, Histological,Labelings, Histological,Stainings

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