[Histonet] picro sirius red staining

2019-08-12 Thread Galina Deyneko via Histonet
Please see my protocol, we successfully use it on murine liver and hearts.I do not stain nuclei, in my opinion counterstaining with any type of hematoxylin contaminates and fades picris acid.   - Sirius Red F3BA(Polysciences #09400), (Direct Red 80 from Sigma Chem. Co. (Cat# D 030)) -

Re: [Histonet] Recent issues with picro sirius red staining (entire liver section become red, no yellow background)

2019-08-12 Thread Kate Davoli via Histonet
I suspect the "all red" as opposed to "only some red" is because the PSRed is not de-staining out of the non-collagen structures. My guess is that your Solution B is old. Acetic acid becomes weak in water very fast so I make the 1% acetic acid solution fresh every time and use the same day. Hope

Re: [Histonet] Recent issues with picro sirius red staining (entire liver section become red, no yellow background)

2019-08-12 Thread Dr. Michael Gudo (Morphisto GmbH) via Histonet
The sirus-red stain is a stain to differentiate collagene I against collagene III in polarized llight, so in bright field all fibres will be red, just if you change to polarised light, you can differentiate both kinds of fibres by their birefrigence which is orange to yellow for collagene 1 and