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The recipes emerged from Claude L. Pierre Masson's (1880–1959) original formulation have different specific applications, but all are suited for distinguishing cells from surrounding connective tissue. Most recipes produce red keratin and muscle fibers, blue or green collagen and bone, light red or pink cytoplasm, and dark brown to black cell ...
Sirius Red F 3B (Direct Red 80) is an azo dye primarily used in staining methods for collagen and amyloid. [1] It has the molecular formula C 45 H 26 N 10 Na 6 O 21 S 6.. In histology, sirius red staining is used in various domains of diagnostic to observe fibrosis levels in a lot of cases of inflammation induced by cancer, vascular or metabolic pathologies.
The first staining protocol that was described as "trichrome" was Mallory's trichrome stain, which differentially stained erythrocytes to a red colour, muscle tissue to a red colour, and collagen to a blue colour. Some other trichrome staining protocols are the Masson's trichrome stain, Lillie's trichrome, and the Gömöri trichrome stain.
Cells lining the lymph sinuses, and the capillaries of the adrenals, pituitary and bone marrow also accumulated vital stains, yet to a lower extent. Based on these observations Aschoff in his review concluded that these were the organs housing the cells of the RES, in the narrow sense of the term. [ 4 ]
This method is commonly used to stain cytoplasm and nuclei of tissue sections in the histology laboratory in order to distinguish muscle from collagen. The muscle stains red with the acid fuchsin, and the collagen is stained green or blue with Light Green SF yellowish or methyl blue. It can also be used to identify growing bacteria. [3]
Nile red (also known as Nile blue oxazone) is formed by boiling Nile blue with sulfuric acid. This produces a mix of Nile red and Nile blue. Nile red is a lipophilic stain; it will accumulate in lipid globules inside cells, staining them red. Nile red can be used with living cells.
Main staining types when using hematoxylin and eosin (H&E). A Basophil granulocyte stains dark purple upon H&E staining. Basophilic is a technical term used by pathologists. It describes the appearance of cells, tissues and cellular structures as seen through the microscope after a histological section has been stained with a basic dye.
These cells are often shades of grayish-blue. Polychromasia is usually a sign of bone marrow stress as well as immature red blood cells. 3 types are recognized, with types 1 and 2 being referred to as 'young red blood cells' and type 3 as 'old red blood cells'. Giemsa stain is used to distinguish all three types of blood smears. [1]