AW: [Histonet] FISH together with IF

2009-05-02 Thread Gudrun Lang
Hi Wladislav, this technique is called FICTION. I'm sure, that you have done a literature search on this. If you need pepsin for your FISH depends on the fixation-status of the tissue for permeabilization and digestion of the histon-proteins. I guess formaldehyde fixed tissue cannot do without it.

AW: [Histonet] FISH together with IF

2009-05-02 Thread Gudrun Lang
I've just found a publication, where the IF is done before FISH. Look at this: http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1770804blobtype=pdf bye Gudrun -Ursprüngliche Nachricht- Von: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu]

RE: [Histonet] Reusing Citrate Antigen Retrieval Buffer

2009-05-02 Thread JMyers1
Jason: In my opinion, any recommendation to re-use a retrieval buffer just isn't 'good science'. The problem is that one cannot know, with any certainty, when a solution loses it effectiveness. The primary reason that the re-use approach has been advocated is because this device consumes a

RE: [Histonet] STP420

2009-05-02 Thread sheila adey
We were having issues with placenta contamination aswell. Our Dr.s now wrap the placenta sections in tissue paper and this seems to have cut down on the problem. Sheila Adey HT MLT Port Huron Hospital Michigan Date: Fri, 1 May 2009 15:41:37 -0500 From: mpe...@grhs.net To:

Re: [Histonet] STP420

2009-05-02 Thread Mark Tarango
That processor spins the tissue around and causes much more agitation than with other tissue processors. Tissue gets out of the cassettes easier. It makes for faster processing, but you have to use mesh cassettes or wrap placenta and other small friable tissues. Mark On Fri, May 1, 2009 at 1:41

[Histonet] re: Xylene

2009-05-02 Thread Matthew Close
I don't know whether you are decalcifying tissue or not, but I have had similar problems with tissue that was over-decalcified. It was particularly bad when decalcified with commercial decalcifying agent which contained formic along with several chelating agents. The end result was tissue that

Re: [Histonet] Entamoeba Trophozoites

2009-05-02 Thread Richard Cartun
This is a late response, but I have IHC staining for E. histolytica on formalin-fixed, parafffin-embedded tissue in my laboratory. Richard Richard W. Cartun, Ph.D. Director, Histology Immunopathology Director, Biospecimens Assistant Director, Anatomic Pathology Hartford Hospital 80 Seymour