[Histonet] Luxol Fast Blue +PAS staining on rat spinal cord

2013-02-24 Thread abijag
Dear Fello histonetters,

I am looking for demonstration of demyelination in rat spinal cord paraffin 
sections. A quick look into the literature revealed use of combination of luxol 
fast blue and PAS for demonstration of demyelination and myelin breakdown 
products. Anybody over here will suggest me the procedure for doing this 
staining. There is also kit from hitobiotec for this staining. Now my questions 
are

1. Whats your preferred stain for demonstrating demyleination?

2. Any experience of using LFB+PAS for demonstration of the same

3. Any idea about the performance of this staining kit from hitobiotec



Thanks in advance
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[Histonet] Texas Society for Histotechnology 2013 Symposium/Convention

2013-02-24 Thread kdwyer3322


All, 
The Texas Society For Histotechnology meeting is April 12-14, 2013 at the JW. 
Marriott in Houston, Texas.  Deadline to book a hotel room is March 21, 2013. 

Please join us for excellent educational offerings which includes 17 workshops 
and 3 symposiums. 

We hope to see you in Houston, Texas! 

Please visit txsh.org to view the program.  

If you have any questions or would like a program e-mailed to you please 
contact: 
Kathy Dwyer at kdwyer3...@aol.com

 

 
 
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[Histonet] Mismatch Repair Enzymes, do you want to learn more?

2013-02-24 Thread Garratt, John [NS]
CIQC/CAP-ACP SEMINAR: DIAGNOSTIC ihc AND MOLECULAR PATHOLOGy
This is a unique opportunity to participate in a symposium dedicated to the 
future of IHC and molecular diagnostics.
For registration go to: http://ciqc-capconference.eventbrite.ca/

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Re: [Histonet] sections falling off

2013-02-24 Thread tahseen
Dear Megha Kumar,
Use commercial + charged OR silanized slides.

Silanized slides are prepared by cleaning the slides by washing, followed
with a rinse in 95% ethanol. 4ml of 3-aminopropyltriethoxy silane is added
to 200 ml of acetone and slides are dipped for 30-60 seconds, followed by
60 seconds in agitated distilled water. The coated slides are then dried
for 1 hour, and can be boxed for future use.
References:Bancroft sixth edition page 694

Regards
Muhammad Tahseen
Senior Supervisor
Histopathology
SKMCHRC


 Hi Histonetters !
 Can anyone suggest how to prevent  adult mouse skin sections from falling
 off during in situ hybridization? How to make sections adhere better to
 slides? I am using poly-lysine coated slides for 5-10 micron thick skin
 sections. The tissue is fixed in 4% PFA and embedded in paraffin.
 Please help !
 thanks
 megha


 --
 Megha Kumar, Ph.D.
 Post-doctoral Research Scholar
 Sen-Bandyopadhyay Lab
 Department of Biological Sciences and Bioengineering
 Indian Institute of Technology Kanpur
 Kanpur, 208016
 India

 phone - 9695830033

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[Histonet] Re: Histonet Digest, Vol 111, Issue 32

2013-02-24 Thread Tyrone Genade
Hello,

On Thu, Feb 21, 2013 at 8:00 PM,
histonet-requ...@lists.utsouthwestern.edu wrote:
 From: Margaryan, Naira nmargar...@luriechildrens.org

 I am trying to do  IHC on FFPE 4 weeks old zebrafish with different Abs. Is 
 there a trick
 working with zebrafish? I am using the same IHC protocol I always use on 
 human and
 mouse tissue and my Abs are  suppose to work on fish as well as human. I run 
 human
 and fish sections together with same AR and IHC protocol. By the end I get 
 beautiful
 staining on human section and or nothing or some
 fuzzy/fuggy/unclarified/undistinguished reaction.

I suggest you prepare some unfixed frozen sections for comparison. If
the antibody reacts to the unfixed tissue but not the fixed then you
probably need to perform one or another antigen retrieval method. I
have been having good success with
http://www.ncbi.nlm.nih.gov/pubmed/21603650

For my fish, Nothobranchius, I am now fixing for two days at 4 oC (in
PFA) and then decalcifying 15% EDTA (pH 7.3) for three days (the last
day in 30% sucrose dissolved into the 15% EDTA) before freezing in
liquid nitrogen for sectioning. This method is maintaining the
structure beautifully.

As regards using the above antigen retrieval method I have both soaked
the tissue (after fixing) in the 70 oC pH 9 TRIS and then decalcified
as well as decalcified, cryo-protected and sectioned (APTES coated
slides) and then performed the antigen retrieval at 70 oC. Both routes
work well for my fish and the sections don't detach.

If you cannot carefully dissect out the tissue of interest then I
suggest decalcifying the tissue. You only need one piece of bone to
catch on the blade and rip through the tissue to cause a lot of
frustration and waste a specimen.

I hope this helps.
-- 
Tyrone Genade Ph.D.
Department of Human Biology
University of Cape Town
South Africa

http://tgenade.freeshell.org
email: tgen...@gmail.com
tel: +27-84-632-1925 (c)

Romans 6:23: The gift of God is eternal life through Christ Jesus our Lord.
To find out how to receive this FREE gift visit http://www.alpha.org.

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