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The slide that has been treated with diastase will lack any positive PAS staining in those locations on the slide PAS staining is also used for staining cellulose. One example would be looking for implanted medical devices composed of nonoxidized cellulose. If the PAS stain will be performed on tissue, the recommended fixative is 10% neutral ...
PAS diastase stain is also used to identify alpha-1 antitrypsin globules in hepatocytes, which is a characteristic finding of alpha-1 antitrypsin deficiency. [2] PAS diastase stain is also used in diagnosing Whipple’s disease , as the foamy macrophages that infiltrate the lamina propria of the small intestine in this disease possess PAS ...
A Ziehl–Neelsen stain is an acid-fast stain used to stain species of Mycobacterium tuberculosis that do not stain with the standard laboratory staining procedures such as Gram staining. This stain is performed through the use of both red coloured carbol fuchsin that stains the bacteria and a counter stain such as methylene blue .
Ultrafast Papanicolaou stain is an alternative for the fine needle aspiration samples, developed to achieve comparable visual clarity in a significantly shorter time. The process differs in rehydration of the air-dried smear with saline , use 4% formaldehyde in 65% ethanol fixative , and use of Richard-Allan Hematoxylin -2 and Cyto-Stain ...
Micrograph of a GFAP immunostained section of a brain tumour.. In biochemistry, immunostaining is any use of an antibody-based method to detect a specific protein in a sample. . The term "immunostaining" was originally used to refer to the immunohistochemical staining of tissue sections, as first described by Albert Coons in 1941.
Joseph Forde Anthony McManus, (July 13, 1911 – March 4, 1980) was a Canadian pathologist who is best known for his formulation of one of the most frequently used stains in histopathology; the McManus Periodic acid-Schiff stain. Joe McManus was a pioneer in the field of Histochemistry during its period of expanding growth and application in ...
[1] [2] Once stained as part of a sample, these organisms can resist the acid and/or ethanol-based decolorization procedures common in many staining protocols, hence the name acid-fast. [ 2 ] The mechanisms of acid-fastness vary by species although the most well-known example is in the genus Mycobacterium , which includes the species ...
Bismarck brown Y stains acid mucins to yellow color. It also stains mast cell granules brown. [3] It can be used with live cells.It is also used to stain cartilage in bone specimens, as one of Kasten's Schiff-type reagents in the periodic acid-Schiff stain to stain cellulose, and in Feulgen stain to stain DNA.