[Histonet] S100

2013-05-08 Thread Perry, Margaret
Our S100 is not working very well.  I think it's too old.  Can someone 
recommend an S100 antibody that works well in dog?  It would be really nice to 
find a good monoclonal instead of the polyclonals.
We are looking for schwannomas,  astrogliomas, malignant melanomas and their 
metastases.

Margaret Perry HT(ASCP)
Veterinary  Biomedical Sciences Department
North Campus Drive Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] antibody diluent

2013-04-09 Thread Perry, Margaret
I am looking for a less expensive antibody diluent and would like some opinions 
on which companies are best .  Are there differences between diluents when it 
comes to background staining?

Margaret Perry HT(ASCP)
Veterinary  Biomedical Sciences Department
North Campus Drive Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] polymer detection

2013-03-21 Thread Perry, Margaret
I would like to get your opinion about rabbit/mouse universal polymer detection 
systems.  Are there any out there that have little or no background when used 
on canine ,feline, ovine, bovine, porcine, equine or caprine  tissues?  Right 
now I use separate polymers for rabbit or mouse antibodies.  We use a DAKO 
autostainer.  I'm just trying to get a feel about what is new to the field of 
polymers.
Thank you for your replies.

Margaret Perry HT(ASCP)
Veterinary  Biomedical Sciences Department
North Campus Drive Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] Nile Red dye

2013-01-24 Thread Perry, Margaret
Is there another name for Nile Red?  Could it be a florescent dye?  I couldn't 
find it on the Biological Stain commission or in a reference book from Harleco. 
 I don't know what the stain will be used for.

Margaret Perry HT(ASCP)
Veterinary  Biomedical Sciences Department
North Campus Drive Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] gloves

2012-08-22 Thread Perry, Margaret
Where do you buy the Sempermed gloves?

Margaret Perry HT(ASCP)
Veterinary  Biomedical Sciences Department
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] what is this item called

2012-07-05 Thread Perry, Margaret
I found something at tedpella.com.  It's a glass bottom dish, catalog number 
14026. There are several sizes.   It looks similar to the one you posted.


Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] PVK stain

2012-05-23 Thread Perry, Margaret
We are in need of some help trouble shooting this stain.  Is it normal for the 
tissue nuclei to stain red?  If not what are we doing wrong?  The Chlamydia are 
staining OK.

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] cytokeratin Lu5

2012-02-23 Thread Perry, Margaret
Has anyone used this antibody on dog?  If so which company did you use?  Would 
you be willing to share your protocol?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] picric acid

2012-02-03 Thread Perry, Margaret
I am curious how big an explosion there would be from 1% picric acid in acetone 
if a little dried around the cap.

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] HE stainers

2011-12-02 Thread Perry, Margaret
We are in the market for a new HE stainer.  We probably won't be doing any 
special stains with it.  Does anyone use the  Shur/stain automated slide 
stainer by TBS?  If so what kind of repair record does it have?  Are you 
satisfied with it?  Thanks for any info you would like to share.

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] Circo antibody

2011-11-04 Thread Perry, Margaret
We are running out of our circo antibody from Iowa and did not find it listed 
in their bank.   Are there any recommendations for a different source?
Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] Need help with Laminin

2011-10-17 Thread Perry, Margaret
I am trying to work up Laminin in dogs and cats.  I have tried the antibody 
from Sigma L9393 with a variety of retrieval methods both enzymatic and HEIR 
with no success.  I would like to hear from anyone who is testing for laminin.  
Do I need to use a different antibody?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] nonstructured proteins

2011-09-26 Thread Perry, Margaret
I am posting this again to see if anyone has worked with nonstructured 
proteins.  Do they form the same crosslinks when fixed with formalin?  Would 
antigen retrieval be of any use?  Do they react with IHC the same as structured 
proteins?


Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] looking for

2011-09-26 Thread Perry, Margaret
Does anyone have an e-mail address for Dick Dapson, Clive Taylor, and William 
Grizzle?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] unstructured proteins

2011-09-21 Thread Perry, Margaret
Have any of you worked with the unstructured proteins?  Do they form the same 
crosslinks when fixed with formalin?  Would antigen retrieval be of any use?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] RE: klotz solution

2011-09-21 Thread Perry, Margaret
We have the same problem.  All we do now is make up the solution and leave out 
the Chloral Hydrate.  I haven't talked to the pathologist about it so I don't 
know if it worked OK.

Margaret Perry HT(ASCP) 
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638



I've just googled and histosearched for Klotz solution but cannot
find anything that doesn't require chloral hydrate.  Has anyone made a
Big Breakthrough in making Klotz that can be made without that pesky
controlled substance?  Any help will be appreciated...who knew the
recipe joined the Witness Protection Program!

Sally Breeden, HT(ASCP)

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[Histonet] laminin and collagen4 in cat and dog

2011-06-02 Thread Perry, Margaret
We want to use laminin  and Collagen IV to sort out the origin of some spindle 
cell tumors.  Specifically, malignant peripheral nerve sheath tumors reportedly 
show laminin and collagen IV basement membranes vs. Fibrosarcoma which does 
not.  We need antibodies that will work in both cat and dog.  Is there anyone 
who has had success with these? Do you have any recommendations for these 
antibodies?





Margaret Perry HT(ASCP)

Dept of Veterinary and  Biomedical services

Box 2175

South Dakota State University

Brookings SD 57007

605-688-5638



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[Histonet] canine teeth

2011-04-26 Thread Perry, Margaret
Hi
I was given blocks today of a canine tooth that had been decaled for 8 days.  
We processed it on our regular overnight program.   It was too hard to cut and 
popped out of the paraffin.  The biopsy trim sheet did not indicate it was a 
tooth so I put the pieces in ammonium hydroxide for 10 min.  It didn't help.  
Do you have any suggestion on how I can save this tissue?


Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] microwave processors

2011-04-12 Thread Perry, Margaret
Has anyone used the LabPulse microwave processor from EBS?  We need a new 
microwave for staining and retrieval  and thought maybe we could get one that 
will do processing also.   I've looked at the Shurwave from Fisher, and the 
Mars from Hacker.  Are there any other companies that have small microwave 
processors?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] RE: Stupid rabbit antibodies

2011-03-24 Thread Perry, Margaret



Have you tried the Dako Rabbit envision?  We also tried the AbCam Expose Rabbit 
specific HRP and used Nova red from Vector  or the DAB in the kit depending on 
which antibody we used.  It is excellent , maybe even a little better than 
Dako's envision.  I did have to use blocks such as FC receptor block Innovex, 
Powerblock Biogenex and serum free protein block DAKO.  What I used depended on 
the antibody with some needing only the block provided in the kit.  Good Luck.

Margaret Perry HT(ASCP) 
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638


--

Message: 17
Date: Tue, 22 Mar 2011 16:04:16 -0500
From: sgoe...@mirnarx.com
Subject: [Histonet] Stupid Rabbit primaries!
To: histonet@lists.utsouthwestern.edu
Message-ID:
d957f2a7d21959488c492a2680f9920a1c5...@svrexch.asuragen.us
Content-Type: text/plain;   charset=us-ascii

So I haven't had to deal with rabbit polyclonal primaries in a long time
because I remember how much the background sucks with them.
Unfortunately the only available antibody is a rabbit polyclonal.  Does
anyone have any suggestions for how to eliminate the background?  I have
diluted almost to the point of the antigens not showing!  Thanks guys
and gals!!

 

Sarah Goebel, BA, HT(ASCP)

Histotechnologist

Mirna Therapeutics

2150 Woodward Street

Suite 100

Austin, Texas  78744

(512)901-0900 ext. 6912

 



--

Message: 18
Date: Tue, 22 Mar 2011 16:13:04 -0500
From: Sebree Linda A lseb...@uwhealth.org
Subject: RE: [Histonet] Stupid Rabbit primaries!
To: sgoe...@mirnarx.com,  histonet@lists.utsouthwestern.edu
Message-ID:

8c023b4ab999614ba4791baeb26e273801002...@uwhc-mail01.uwhis.hosp.wisc.edu

Content-Type: text/plain;   charset=us-ascii

Do you know for sure that its the Ab and not endogenous biotin,
peroxidase or Phosphatase?  You can block for all those.

Otherwise there are a number of commercial blocking agents on the
market...try Biocare for a start (800)799-9499 or better yet, the
company that makes your antibody.

Good luck. 


Linda A. Sebree
University of Wisconsin Hospital  Clinics
IHC/ISH Laboratory
DB1-223 VAH
600 Highland Ave.
Madison, WI 53792
(608)265-6596



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[Histonet] liver endothelial stains

2011-02-17 Thread Perry, Margaret
What antibody would you recommend using to label the liver endothelial cells?  
Is factor 8 our best marker?  Also do you know of a special stain other than 
HE that would demonstrate these cells?
Thank you.

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] special stains QC

2010-11-30 Thread Perry, Margaret
Our lab would like to know how you handle the quality issue of verifying that 
the control material you use for special stains is what it's supposed to be. 
For example: how do you confirm that bile in a piece of liver used as a Halls 
control is actually bile?
We use controls for bacteria or viruses that are confirmed  by PCR, plating, or 
virus isolation.  If possible we like to have the case confirmed by two 
different tests.   If confirmed we test the paraffin blocks from that case by 
running a stain on them and the pathologist confirming the test positive or 
negative.

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] FW: WNV

2010-09-27 Thread Perry, Margaret


From: Perry, Margaret
Sent: Monday, September 27, 2010 11:41 AM
To: 'tgo...@mt.gov'
Subject: WNV

We have a problem with the equine tissue as do other labs.  A lot of samples 
can be done and only one will come up positive.  We have good luck with avian 
tissues.  We use DAKO envision.  The antibody we use is 7H2 (81-002) from 
BioReliance.  Proteinase K for 6 min, antibody for 30 min, DAKO mouse  envision 
for 30 min , nova red 4 min.  Hope this helps.  Our control tissue is avian 
heart and the cells that stain are very positive.  However there are very few 
positive cells in our control and you really have to search to find them.

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] drying ovens

2010-09-15 Thread Perry, Margaret
Has anyone used the TDO66 Medite drying oven?  Do you like it?  Is the company 
good to work with?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] coverslip removal

2010-09-13 Thread Perry, Margaret
I  am using aqueous mounting media, faramount,  for the first time.  The slides 
I coverslipped several days ago look dry.  Will soaking in water remove the 
coverslip?

Margaret Perry HT(ASCP)
Dept of Veterinary and  Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638

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[Histonet] EXPOSE

2010-07-20 Thread Perry, Margaret
Has anyone tried the new polyvalent polymer detection EXPOSE from AbCam?  
What did you think of it?
Margaret
SDSU
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[Histonet] slim jims

2010-06-22 Thread Perry, Margaret
Do you put the slim jims in formalin and then process them or just put them in 
the processor?
Margaret
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[Histonet] xylene substitutes

2010-05-12 Thread Perry, Margaret

We use formula 83 for everything and do not have a problem with a film.  We 
have found that we must use isopropal alcohol instead of reagent alcohol in the 
final dehydration steps.
Margaret Perry
SDSU

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[Histonet] paraformaldayhde

2010-04-26 Thread Perry, Margaret
In the Brown and Hopps gram stain can I substitute  37 g in 100 ml of powdered 
paraformaldyhyde for the 37% formalin or do I need to buffer it?
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[Histonet] Gram stain

2010-04-23 Thread Perry, Margaret
Now that I'm done with my rant I have a real question.  We are trying to do a 
gram stain on fish and the safranine O is staining everything red.  What other 
stain would you use?  I usually have time to look at the books but 
unfortunately it's almost quiting time and the slides need to be done by noon 
Monday.  Thanks
Margaret Perry
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[Histonet] GMS stain

2010-03-31 Thread Perry, Margaret
We sometimes have problems with the stain if we use positive slides.
Margaret
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[Histonet] elisa's

2010-03-26 Thread Perry, Margaret
Is there a list serve for elisa's?
Margaret Perry

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[Histonet] alcian blue van gieson stain

2010-03-12 Thread Perry, Margaret
We want to try the double stain alcian blue Van gieson.  Do you stain for the 
alcian blue first and then the Van gieson?  We do both stains but I am unsure 
of how to put them together.
Margaret Perry
South Dakota State University

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[Histonet] looking for mouse antibodies

2010-02-22 Thread Perry, Margaret
Are there good mouse antibodies that will work on dog and cat for the following:

Factor 8
GFAP
Mycobacterium sp
S100a
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[Histonet] Klotz fixative

2010-01-29 Thread Perry, Margaret

Do you know of anyone that sells Klotz fixative?  We use it in a pre vet class 
but would like to eliminate the choloralhydrate since it is such a hassel due 
to it's being a controlled substance. Is there a substitute fixative that would 
retain the properties of Klotz?

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[Histonet] need help with stain

2010-01-28 Thread Perry, Margaret
A researcher wants to measure the length of the intestinal crypts and asked for 
a suggestion on what type of stain to use.  I am thinking of using a 
phloxine/tartrazine stain and do a double stain with a GMS to show the basement 
membrane.  What is your opinion on this? 
Do you have other suggestions that would work better?
Hope you are warmer than here in SD!
Thanks for the help.
Margaret Perry
South Dakota State University



















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[Histonet] fish scales

2009-12-10 Thread Perry, Margaret
We are trying to cut fish scales that have been decalcified.  They are chunking 
out when we try to cut them.  I think we need to soften the keratin and I 
looked in the archives for the right dilution of ammonium hydroxide to use.  
One post said 5% the other said straight.  What dilution do you recommend?  I'm 
think it would probably be the same as what you use on toenails.

Margaret Perry HT(ASCP)
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[Histonet] RE: Mycoplasma special stain

2009-12-02 Thread Perry, Margaret
Hi JoAnne,
Our pathologist requested we try a Faulkner stain for Mycoplasma.  I found two 
methods.  The Faulkner/Lillie and the Faulkner/Kerr variations of the Warthin 
Starry.  One of these is a lower acid.  The pathologist is looking up the 
reference and will call the people who wrote a paper on this.  I can let you 
know what I find out.  We would like to find a quicker method than PCR and 
we've tried several antibodies for IHC but they seem to cross react with other 
bacteria.
Margaret Perry
margaret.pe...@sdstate.edu



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[Histonet] Warthin Faulkner method for spirochaetes

2009-10-21 Thread Perry, Margaret
We are trying to work up this stain per pathologists special request.  We 
usually do the Warthin-Starry method not this modification.  I have the 
published article from Stain Technology Vol. 20 No. 3 July 1945.  The protocol 
is a little vague and I have some questions?  Step one brings the slides into 
acetate buffer.  Step  two says “impregnate sections 45 minutes at 55-60˚ C (in 
paraffin oven) in 1% AGNO3 in water of the same buffer level.  What does water 
of the same buffer level mean?  We interpret this as the same acetate buffer as 
in step one.  Is this correct?  Also it says to use
 1 :500 acid gold chloride(HAuCl4.xH2O) to tone.  Can we substitute 0.2%AuCl1?
Thanks for your help.

Margaret Perry
South Dakota State University



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[Histonet] RE: Antigen retrieval question

2009-10-21 Thread Perry, Margaret
If we need to hold retrieved slides for awhile we hold them in water up to 4 
hours.  Holding in water overnight leads to no signal.  We have also tried 
holding the slides in our Tris buffer and have found decreased or no staining.
Margaret Perry
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[Histonet] tris buffer

2009-10-07 Thread Perry, Margaret
I am trying a protocol that uses 0.1M Tris/0.15M sodium chloride pH7.5, which 
is what I normally use.  At another step in the protocol it says to wash with 
0.05M Tris buffer pH 7.5.
What do I use to make the 0.05M Tris buffer?  Is it a combination of Tris HCl 
and Tris base without sodium chloride?
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[Histonet] Tissue Embedder

2009-09-02 Thread Perry, Margaret
We are in the market for a new embedder.  What do you suggest?   I tried 
searching the archives but only came up with older comments.
Vendors please feel free to contact 
frank@sdstate.edumailto:frank@sdstate.edu.  We may have to go with a 
used instrument so would like comments on good vendors.

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[Histonet] West Nile

2009-08-17 Thread Perry, Margaret
Has anyone found a good antibody for west Nile FFPE that will work on horses?
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[Histonet] Start Up Lab

2009-07-22 Thread Perry, Margaret
I would add an eye wash station and a chemical spill kit to the list.

Margaret Perry HT (ASCP)
IHC Lab Manager Veterinary Science
Animal Disease Research and Diagnostic Lab
South Dakota State University
Box 2175 North Campus Drive
Brookings SD 57007

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[Histonet] time in formula 83

2009-07-09 Thread Perry, Margaret
Our processor has gone down but we can process up to the paraffin step.  My 
question is how long can we keep the tissues in the formula 83 without any 
visible problems?  We would like to start processing tonight and possibly 
infiltrate by hand tomorrow.  Not optimal but it does work.  Your comments are 
gratefully appreciated.

Margaret Perry HT (ASCP)
IHC Lab Manager Veterinary Science
Animal Disease Research and Diagnostic Lab
South Dakota State University
Box 2175 North Campus Drive
Brookings SD 57007

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[Histonet] protease XIV

2009-04-20 Thread Perry, Margaret
I'm trying to find a source for protease XIV other than Sigma.  Any suggestions?

Margaret Perry HT (ASCP)
IHC Lab Manager Veterinary Science
Animal Disease Research and Diagnostic Lab
South Dakota State University
Box 2175 North Campus Drive
Brookings SD 57007

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[Histonet] Looking for Patsy Ruegg's e-mail address

2009-03-16 Thread Perry, Margaret
Patsy I have a couple of questions for you but have the wrong address.
Margaret Perry

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[Histonet] problem eyes

2009-03-04 Thread Perry, Margaret
Please help!  We have been trying to cut whole eyes from a pig.  They need to 
be nice enough for a publication.  We are having the devil of a time because no 
matter what we do there are wrinkles.  If we turn the waterbath up to stretch 
things out the retina detaches.  Do any of you have suggestions?  We uses 
Surgipath  EM400 for embedding paraffin and and their infiltration medium.  Is 
this to soft? The lowest we can turn our waterbath is 38 degrees C.

Margaret Perry HT (ASCP)
IHC Lab Manager Veterinary Science
Animal Disease Research and Diagnostic Lab
South Dakota State University
Box 2175 North Campus Drive
Brookings SD 57007

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[Histonet] brain sections falling off slides during IHC

2009-02-11 Thread Perry, Margaret
A few years ago we also had this problem.  The brains were terrible.  We found 
that changing our processing chemicals, especially the wax, more frequently got 
rid of most of our problems.  We use Fisher plus slides. There is a difference 
in plus slides.  I recommend you contact several distributors and get samples 
and pick the one that works best for you.  After cutting we have a fan that air 
dries the slides until the sections look dry about 10- 15 min.  The slides are 
dried overnight on top of our embedder so that they are heated slightly.  The 
next day they are dried for 1 hour at 60° C.  We developed this method for 
cattle ear notches and about the only reason tissue comes off the slide now is 
because the tissue is necrotic or not fixed properly.

Margaret Perry HT (ASCP)
IHC Lab Manager Veterinary Science
Animal Disease Research and Diagnostic Lab
South Dakota State University
Box 2175 North Campus Drive
Brookings SD 57007

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[Histonet] lids for stainer containers

2008-12-03 Thread Perry, Margaret
We are looking for a source that sells a lid that looks like wax covered 
cardboard.  We use them on top of the Shandon slide containers holding xylene 
or formula 83 while waiting to coverslip.  They are about 5x7 and very thin.  
They have been here for years so I have no idea where they came from.  Any help 
in finding them or a substitute will be greatly appreciated.  Thanks.

Margaret Perry HT (ASCP)
IHC Lab Manager Veterinary Science
Animal Disease Research and Diagnostic Lab
South Dakota State University
Box 2175 North Campus Drive
Brookings SD 57007

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