Sakaki-
Forum Senior
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Periodic acid-Schiff staining stains glycogen, neutral mucins, and basement membranes. It also stains colloid material of the thyroid and the pars intermedia of the pituitary; certain sialomucins and sulfomucins also stain (sialomucins are found in the small intestine). Amyloid also gives a weak reaction.
Tissues that are strongly PAS positive include the liver, kidney, the small intestine, and the kidney. PAS positivity appears as a magenta colour (which is a result of Schiff's reagent staining).
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Forum Guru
Topics: 153
Posts: 370
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thanks, cherry.
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