pyronin


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pyronin

 [pi´ro-nin]
a red aniline histologic stain.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

py·ro·nin

(pī'rō-nin),
A fluorescent red basic xanthene dye, the chloride of tetramethyldiaminoxanthene, pyronin Y or pyronin G (C.I. 45005), or of tetraethyldiaminoxanthene, pyronin B (C.I. 45010). These dyes, especially pyronin Y, are used in combination with methyl green for differential staining of RNA (red) and DNA (green); difference in staining result is probably due to the higher degree of polymerization of DNA; pyronin Y is also used as a tracking dye for RNA in electrophoresis.
Farlex Partner Medical Dictionary © Farlex 2012

pyronin

(pī′rə-nĭn) also

pyronine

(-nēn′)
n.
Any of a group of xanthene dyes used as a biological stain, especially to detect or track the presence of RNA by staining it red.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

py·ro·nin

(pī'rō-nin)
A fluorescent red basic xanthene dye, used in combination with methyl green for differential staining of RNA (red) and DNA (green); also used as a tracking dye for RNA in electrophoresis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The sections were stained with Toluidine Blue and Pyronin Y.
Toluidine Blue and Pyronin Y staining, total magnification 400x.
To obtain the character of cell division and cell phase, we extinguished hNSC flow cytometry analysis using Pyronin Y and Hoechst 33258 staining.
Caption: FIGURE 6: Flow cytometry analysis of human neural stem cells by using Pyronin Y and Hoechst 33258.
Methyl green pyronin stain can be used as a useful tool for the epidemiological study of theileria vector through differential staining the salivary glands of the ticks.
These sections were examined by means of histochemical staining with the acid solochrome cyanin method for the detection of proteins (Chapman, 1968), the periodic acid Shift" (PAS) method for carbohydrates, and the methyl green and pyronin methods for nucleic acids (Al-Hazzaa and Bowen, 1998).
Bregman (2002) has described two experiments in which students study cellular RNA microscopically either by staining whole cells in a blood smear with a combination of methyl green and pyronin or by staining tissue culture cells with the ammoniacal silver method for ribosomal RNA.
The presence of RNA in apoptotic bodies was confirmed by staining with pyronin Y (20 mg/L; Sigma).
The cells were stained with Sternheimer supravital solution (Alcian Blue and Pyronin B; Oy Reagena) (6, 7).