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UND 363 alc. blu 1.0
UND 363 Alcian Blue 1.0
| Question | Answer |
|---|---|
| What gives the blue color of alcian blue | copper |
| Is alcian Blue an acidic or basic dye | basic dye |
| At 2.5 ph what are stained with alcian blue | carboxylated and sulfated acid mucosubstances |
| At PH 1.0 what are stained with alcian blue | ONLY sulfated acid mucosubstances are stained |
| What is used in conjunction with alcian blue to differientated epithelial and connective mucin | hyaluronic acid (which preceeds the alcian blue staining in the process) |
| what mucin will alcian blue not stain | NEUTRAL mucins |
| Purpose of AB 1.0 | Demonstrate sulfated/sulfanated mucosubstances |
| principle of AB 1.0 | uses 1.0 N HCL to stain ONLY sulfated acid mucopolysaccharides and sulfated sialomucins (glycoproteins) |
| fixatives for AB 1.0 | 10% NBF or Bouins |
| thickness and control | 4-5micron, sm. intestine, appendix, or colon |
| microscope for AB 1.0 | Light |
| Name the 3 major reagents with AB 1.0 | 0.1 N HCL, 1% alcian blue ** are combined** (stain mucin), nuclear fast red (counterstain) |
| What are the expected results for AB 1.0 | sulfated mucosubstances - pale blue background/nuclei will be - pink to red |