Re: Sirius Red method for amyloid
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From: | Bryan Llewellyn <bryand@netbistro.com> (by way of histonet) |
To: | histonet <histonet@magicnet.net> |
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-----Original Message-----
From: gp <elephantsneedus@erols.com>
To: histonet@pathology.swmed.edu <histonet@pathology.swmed.edu>
Date: February 14, 1999 8:34 AM
Subject: Sirius Red method for amyloid
>Does anyone have a shortened protocol for Sirius Red for amyloid.
>
>Thanks!
>
>Marian
>
>
Sirius red can be used in a Highman's congo red type procedure quite
effectively, as can many other of the "sirius" direct cotton dyes. Total
time to stain is about 15 minutes.
Solutions
0.5% Congo red (or Sirius red) in 50% ethanol
0.2% potassium hydroxide in 70% ethanol
Mayers alum hematoxylin or another progressive type.
Method
1. Sections to water.
2. Stain nuclei for 2 minutes, no need to blue.
3. Place in dye solution for 5 minutes or longer.
4. Rinse with water.
5. Place into alkaline ethanol until dye ceases to extract - a few
minutes.
6. Rinse well with water.
7. Dehydrate, clear and mount.
Amyloid - red
Nuclei - blue
Bryan Llewellyn
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