Re: [Histonet] Plastic coverslip Loosening

2016-03-22 Thread Helen Fedor via Histonet
Thank you for your help. This is encouraging. Helen -Original Message- From: Glover, Kimberly [mailto:kimberly.glo...@polysciences.com] Sent: Tuesday, March 22, 2016 11:38 AM To: Helen Fedor <hfe...@jhmi.edu> Cc: histonet <histonet@lists.utsouthwestern.edu> Subject:

[Histonet] Plastic coverslip Loosening

2016-03-22 Thread Helen Fedor via Histonet
Hello, I did try and search the archives to see if there was any advice on this but didn't find an answer. Do you know of a good way to fix H slides that had plastic coverslips where the coverslip is lifting from the slide and in some cases coming completely off? In all cases the tissue is on

Re: [Histonet] MTA-1 Microarrayer

2015-05-04 Thread Helen Fedor
Hello Bernice, we have tried out several and found that enercell works. CR2450 their number is 23-808. WE might have found them on amazon. Cannot remember. Helen L. Fedor Oncology Tissue Services, Manager Johns Hopkins University 411 N. Caroline St  Room 310 Basement| Bond St Annex Building

RE: [Histonet] TMA Arrayers

2015-04-30 Thread Helen Fedor
Hello, We have the Pathology Devices Semi automated units. We are happy with them. Our decision to keep with the less automated units are largely due to our work flow. We make TMA's for customers. But the customer has to do all of the work in the design and data entry into out TMAJ Database. I

[Histonet] Vacuum processing of biopsies.

2015-03-31 Thread Helen Fedor
Hello all, I would be interested in pros and cons of using one of the Rapid vacuum processing units for processing of biopsy tissues. Is this technology improving the processing? Any specific problems that may be occurring. Thanks in advance. Helen L. Fedor Oncology Tissue Services,

RE: [Histonet] Cryosectioning undecalcified bone

2015-02-05 Thread Helen Fedor
Hello, I believe that the products for the CryoJane tape transfer are still available from Fisher. Helen L. Fedor Oncology Tissue Services, Manager Johns Hopkins University 411 N. Caroline St  Room 310 Basement| Bond St Annex Building Baltimore, MD | 21231 410-614-1660

[Histonet] RE: Cassette Labeler

2015-01-27 Thread Helen Fedor
Hello, we recently purchased the Primera unit from Creative waste solutions. http://www.cwsincorp.com/ we like it. I would be happy to discuss it further if you like. Helen L. Fedor Oncology Tissue Services, Manager Johns Hopkins University 411 N. Caroline St  Room 310 Basement| Bond St Annex

RE: [Histonet] Re: Histonet Digest, Vol 130, Issue 16

2014-09-18 Thread Helen Fedor
We had the PTL, which is a little more cumbersome. We are now using the BBP33, and are very happy with it. Helen L. Fedor Prostate Tissue Bank, Manager Oncology Tissue Services, Manager Johns Hopkins University 600 N. Wolfe St, | Marburg Room 406 Baltimore, MD | 21287-7065 410-614-1660

RE: [Histonet] Slide and cassette printers?

2014-09-17 Thread Helen Fedor
We are also using the Brady labeler. It is versatile, easy to use, they have great tech support. We are not using the cassette label attaching machine. For the cassette printer we are using the Primera. The Tech support there is also great. Helen -Original Message- From:

[Histonet] RE: rolling sections

2014-06-12 Thread Helen Fedor
Hi, I think that it is not necessary to actually get them to roll. We just collect all of the sections and put them into the tube. Scrunched, not rolled. Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On

[Histonet] Temporary position

2014-01-08 Thread Helen Fedor
Hello, We are in search of a temporary histo-tech or histologist to work in our OTS Core lab. Primarily we do research work to support the efforts of the Cancer Center Investigators. A majority of the work is on animal tissues. Gross, Process, Embed, section and do recuts, i.e., lining up

[Histonet] embedding cells in parrafin #2

2013-12-02 Thread Helen Fedor
Making cell tissue blocks Cells: . Harvest and fix in formalin* for at least 3hrs or overnight (10 fold more formalin) . HAVE A NICE VISIBLE SIZE PELLET (1 confluent T75 minimum or 1 T175) . Remove formalin* and wash 2x's in cold 1x PBS . Cover cells with some 1x PBS and

RE: [Histonet] The Good Old Days...

2013-09-20 Thread Helen Fedor
You can tell it is Friday. :) Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Cristi Rigazio Sent: Friday, September 20, 2013 1:40 PM To: Davis, Cassie Cc: histonet@lists.utsouthwestern.edu

RE: [Histonet] Re: Two Patient Identifiers on slides

2013-08-01 Thread Helen Fedor
Hello, I may not have read every e-mail on this discussion but would like to chime in here. I was just having this discussion with someone yesterday. At large research hospitals that have various goals in our mission statements, we are concerned about continuously improving the process to

RE: [Histonet] Block labeling

2013-06-24 Thread Helen Fedor
Hello, we are using the labels from the Brady label maker with good success. They are extra sticky and you can find some that will stick to paraffin. We use ones that qualify for freezing since they need to be safe on the ice tray. http://www.bradycorp.com/ Helen -Original Message-

[Histonet] RE: Control Storage

2013-06-12 Thread Helen Fedor
Hello, We are storing our unstained slides at -20 in Ziploc bags. Our TMA blocks are being stored at 4 degrees. Helen L. Fedor Oncology Tissue Services, Manager Johns Hopkins University 600 N. Wolfe St, | Marburg Room 406 Baltimore, MD | 21287-7065 410.614.1660 http://tmalab.jhmi.edu/

[Histonet] RE: Out of my comfort zone...

2013-04-03 Thread Helen Fedor
We have been using store bought gallons of distilled water in our water baths. This water has been boiled so enzyme activity should be absent. Helen 410.614.1660 http://tmalab.jhmi.edu/ http://prostatebiorepository.org/ Helen -Original Message- From:

RE: [Histonet] Validation of a new tissue processor

2012-11-28 Thread Helen Fedor
You will also need to validate all of the IHC stains and special stains that you do on these tissues. You can take samples from each tissue type and run them in parallel on both machines. Then test all of your special stains and antibodies that you have in your inventory. :) Helen

RE: [Histonet] Need better results from older archival slides?

2012-11-19 Thread Helen Fedor
Agreed! -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Rene J Buesa Sent: Monday, November 19, 2012 11:16 AM To: Rob Day; histonet@lists.utsouthwestern.edu Subject: Re: [Histonet] Need better results

[Histonet] Bliss Imaging system

2012-07-26 Thread Helen Fedor
Hello, We have a Bliss imaging system that we are no longer using. I has a great Zeiss axiophot microscope with high quality lenses. I believe that Olympus is now the company that has taken over the Bacus Labs Imaging system. Please contact me if you have a desire to acquire this system from us

[Histonet] RE: Beecher

2012-07-11 Thread Helen Fedor
http://www.pathologydevices.com/TMArrayer.htm You can contact Ron Gebing at Pathology Devices. Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Bernice Frederick Sent: Wednesday, July 11, 2012

RE: [Histonet] Billing 88342

2012-07-03 Thread Helen Fedor
That is so true.! -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Paula Pierce Sent: Tuesday, July 03, 2012 1:36 PM To: Jay Lundgren; Victor A. Tobias Cc: HISTONET Subject: Re: [Histonet] Billing 88342

RE: [Histonet] TMA blocks

2012-02-20 Thread Helen Fedor
Hello Colleen, We use standard size molds (2.5cm X 3.5cm) that are a litte deeper (7mm) in our core to make the recipient blocks. 2.5cm X 3.5cm. and our TMA with the 1.0mm punch have 13 rows and 16 columns = 208 cores. You can contact me if you want more information. Helen L. Fedor Tissue

[Histonet] Casual Temp Position

2012-01-09 Thread Helen Fedor
Hello, We have a position available for a casual temp employee. This is a reference lab that primarily focuses on animal specimens. We will consider someone who has 2 years or more cutting experience. Please forward your resume to me. thanks Helen 410.614.1660 http://tmalab.jhmi.edu/

[Histonet] RE: Casual Temp Position

2012-01-09 Thread Helen Fedor
://tmalab.jhmi.edu/ Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Helen Fedor Sent: Monday, January 09, 2012 1:37 PM To: histonet@lists.utsouthwestern.edu Subject: [Histonet] Casual Temp Position

[Histonet] RE: to cut or not to cut mouse brains

2011-11-17 Thread Helen Fedor
Hello Terry, These are very difficult. The colder the better. (-27). keep the slides in the cryostat. Cut the section. Place section on a cold slide, and keep the slide in the croystat during the following procedure. Hold slide in left hand and brush in right. Place finger under one edge of

RE: [Histonet] to cut or not to cut mouse brains

2011-11-17 Thread Helen Fedor
When the blocks are not croyprotected you can cut them at warmer temperatures. But when they are cryoprotected with the 30% sucrose, they are soft at -18, that is why you need the colder temperature. they will compress at the warmer temperatures and give you a lot of wrinkles. Helen

[Histonet] RE: need help with TMA

2011-10-31 Thread Helen Fedor
Hello, Do 30 minutes at 37 degrees on a glass slide. take from oven and apply gentle pressure to center of block and slide complex, cool to RT and repeat 1 or two times. Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu

[Histonet] RE: Paraffin sections for molecular assays

2011-10-04 Thread Helen Fedor
handling the slides .(including the process of labeling slides). I usually lay the slides out on pape rtowels on the lab bench while labeling them. Helen Fedor Johns Hopkins University TMA and Prostate Spore Lab Manager JHU SOM Uro/Pathology 600 N. Wolfe Street, Marburg Room 406 Baltimore MD

RE: [Histonet] Control Slides

2011-03-15 Thread Helen Fedor
Hello, We have been storing our slides in small zip loc bags at -20 and have data suggesting that slides stored in this fashion are reasonably well preserved after 3- 5 years. This was done with TMA slides. Was not done for special stain slides but for IHC. Helen -Original Message-

[Histonet] RE: Beecher Instruments

2011-03-04 Thread Helen Fedor
Hello, There is a company that I just ran a few months ago. http://www.pathologydevices.com/TMArrayer.htm they have a manual arrayer that is running about 30,000.00. A little more than the Beecher Arrayer but it does offer some improvements. They are also able to sell the Needles that will fit

RE: [Histonet] RE: Beecher Instruments

2011-03-04 Thread Helen Fedor
-7065 410.614.1660 From: Mark Tarango [mailto:marktara...@gmail.com] Sent: Friday, March 04, 2011 4:20 PM To: Helen Fedor Cc: Barone, Carol; histonet@lists.utsouthwestern.edu Subject: Re: [Histonet] RE: Beecher Instruments There is also the Sakuro Quick-Ray System. I don't know if you've

RE: [Histonet] Section position on slides

2011-02-16 Thread Helen Fedor
Since automation is becoming more and more a part of all Histology labs the demands of placement of the tissue on the slides varies for different instruments. Stainers, coverslippers and now with slide scanning as well. So I do not believe that there is a silver bullet answer. Helen L. Fedor

[Histonet] Charged slides

2011-01-06 Thread Helen Fedor
Hi, A question has come up regarding the different methods used to put a charge on the slide. We recently ordered some plus slides and the boxes they are packed in say silanized slides, but they say plus on the slide . We don't want to use these for our clients if they are not going to be

RE: [Histonet] RE: Edge affect on TMA?

2010-12-22 Thread Helen Fedor
[mailto:irena.kir...@hotmail.com] Sent: Wednesday, December 22, 2010 1:54 AM To: Helen Fedor; sette...@umdnj.edu; ahut...@dh.org; histonet@lists.utsouthwestern.edu Subject: RE: [Histonet] RE: Edge affect on TMA? how to prevent spots coming off during sectioning TM's? we do sometimes facing problems sectioning

[Histonet] RE: Edge affect on TMA?

2010-12-21 Thread Helen Fedor
Hello, We do not usually see that. If we do its very rare because I can't think of any examples off hand. The usual problems are the spots came off or shifted/smushed, not an edge effect. Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu

RE: [Histonet] Pathology Grossing Manual

2010-12-09 Thread Helen Fedor
http://www.amazon.com/Surgical-Pathology-Dissection-Illustrated-ebook/dp/B000PY3QPM here is the one that we use. Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of tracz...@aol.com Sent: Wednesday,

RE: [Histonet] unstained paraffin tissue slides storage--why cold?

2010-11-04 Thread Helen Fedor
The study that we did showed that the staining on freshly cut slides from a block stored at room temperature was in fact not as good as slides that were sectioned 5 years earlier and stored at -20. Therefore the blocks should be stored in the cold as well. The tissue is degrading in the block

RE: [Histonet] unstained paraffin tissue slides storage--why cold?

2010-11-04 Thread Helen Fedor
Hello, We have not published the paper yet . It is in progress and hope to get it out of the pile soon. Helen From: dusko trajkovic [mailto:dunat...@sbcglobal.net] Sent: Thursday, November 04, 2010 1:45 PM To: Morken, Tim; Helen Fedor Cc: histonet@lists.utsouthwestern.edu Subject: Re

RE: [Histonet] unstained paraffin tissue slides storage

2010-11-03 Thread Helen Fedor
Hello, We have been storing our slides in very small Ziploc bags at -20 and find that this method works fairly well. We have done a study(Berez et.al in process) and slides stored in this fashion for 5 years stain better than freshly cut slides from the same blocks that have been stored at room

RE: [Histonet] Block release

2010-10-18 Thread Helen Fedor
Hello, Our institution does release blocks, the requirement is that a patient consent is signed and we have an MTA (Material Transfer Agreement) For the study and appropriate IRB's in place for the study. It is a lot to set up, but after this is done for one study any following studies are

RE: [Histonet] Cutting Microarrays

2010-09-20 Thread Helen Fedor
Hello, We have trouble with the larger size punches as well. In order to get the cores to stick to the size try warming the block in a oven at 37 degrees for 15 minutes, put the block face down on a clean slide. (providing the melting temperature of the paraffin is about 57 degrees). After 15

RE: [Histonet] Cutting Microarrays

2010-09-20 Thread Helen Fedor
Hello, We have trouble with the larger size punches as well. In order to get the cores to stick to the size try warming the block in a oven at 37 degrees for 15 minutes, put the block face down on a clean slide. (providing the melting temperature of the paraffin is about 57 degrees). After 15

[Histonet] RE: Chilling trays

2010-07-01 Thread Helen Fedor
You can try disecting trays. I just googled discting tray, looks like listing price is 17.00. they are the perfect size and shape for freezing. and keep blocks organized. Helen Fedor Johns Hopkins University TMA and Prostate Spore Lab Manager JHU SOM Uro/Pathology 600 N. Wolfe Street, Marburg

RE: [Histonet] RE: Prolonged FFPE slide and block storage

2010-05-15 Thread Helen Fedor
Hello, We have done a study and found that storage in small zip-loc bags at -20 is an inexpensive and convenient way to store slides. In fact the slides stored for 5 years at -20 stain better than freshly cut sections from the same blocks. This was also published recently by others. Dr Rimm at

[Histonet] Cover glass

2010-03-24 Thread Helen Fedor
Hello, Our lab does IHC staining in house and have had zero problems with our Fisher brand cover slips until recently. We've tried both Fisher and Corning cover slips and what appears to be dust or imperfections in the glass are found on both brands. This is creating false positives for us,

[Histonet] RE: Akemi - Urgent!

2009-11-12 Thread Helen Fedor
I also receive one of the scam emails. -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Breeden, Sara Sent: Thursday, November 12, 2009 9:21 AM To: histonet@lists.utsouthwestern.edu Subject: [Histonet]

RE: [Histonet] withdrawal

2009-10-21 Thread Helen Fedor
To subscribe or unsubscribe to the list or change your subscription to the daily digest mode etc. you need to go to: http://lists.utsouthwestern.edu/mailman/listinfo/histonet or email: histonet-reque...@lists.utsouthwestern.edu with the word help (without quotation marks) in the subject line

[Histonet] RE: re: control slide storage

2009-06-25 Thread Helen Fedor
Hello, We have a project that has worked on this topic using TMA's and have found that storing unstained, and unbaked slides at -20 enhances the preservation of antigenicity of the samples. It is not yet published but is getting written up. TMA slides that were stored for 5 years at -20 in very

[Histonet] RE: Full Mount Immunos

2009-03-05 Thread Helen Fedor
I believe that Brain Research Labs has large + slides. Helen -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Metzger, Kenneth Sent: Thursday, March 05, 2009 10:07 AM To: histonet@lists.utsouthwestern.edu

[Histonet] Pathos animal tissue processing

2009-02-19 Thread Helen Fedor
Hello, Another question, Is anyone using the Pathos system to process animal tissues? I would really appreciate any comments good/ and or bad on this topic. Best regards, Helen From: Helen Fedor Sent: Wednesday, February 18, 2009 5:33 PM To: 'histonet@lists.utsouthwestern.edu' Subject: Pathos

[Histonet] Pathos Processing tissue problems

2009-02-18 Thread Helen Fedor
Hello, Our Surgical Pathology Department has been using the Pathos processor. I work in research and we have begun to have issues with the tissue falling off of the slide after pretreatment for IHC. Has anyone else noticed this happening? The tissue is much harder in the block than the standard

RE: [Histonet] Cryostat safety question

2009-01-08 Thread Helen Fedor
Hello, I had previously sent this but only to the person who asked the question, I think it this works beautifully so decided to resend to the list. we have a great way to remove the specimens for the chucks. We have a 500cc plastic container with a lid that we have cut an X into the center.