Re: [Histonet] Microwave Processing

2023-11-08 Thread Duraine, Lita R via Histonet
Hello all, I use microwave processing exclusively. First of all, are you making sure that each reagent is completely extracted before the next reagent is administered? I know the tissue cannot be completely dry, but all residue reagent should be siphoned off before the next one goes in. Thi

Re: [Histonet] Epon Resin Embedding Question

2022-09-29 Thread Duraine, Lita R via Histonet
Hi Brian, I regularly use epon for TEM work. Even though the instructions are good for some climates , epon is particular. Here in Houston, I let my blocks cure for 5 to 7 days depending on how humid or rainy it is. When I press a fingernail into the block , if it leaves a mark I know it need

Re: [Histonet] Retirement in sight!

2021-09-09 Thread Duraine, Lita R via Histonet
Congratulations Tim, I too was a graduate of the San Joaquin Delta EM School under Dr Murphy. Your story is similar to most of us. We have been able to go through doors that others only wish they could. Over the years , we often experience many accomplishments, and get to meet many colleague

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2015-10-18 Thread Duraine Lita via Histonet via Histonet
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2015-10-18 Thread Duraine Lita via Histonet via Histonet
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2015-10-18 Thread Duraine Lita via Histonet via Histonet
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2015-10-18 Thread Duraine Lita via Histonet via Histonet
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Re: [Histonet] Using randomly generated anonymizing numbers for internal tracting of specimens

2015-08-25 Thread Duraine, Lita via Histonet
I agree with Rene, and everyone else that using random generated tracking numbers are a really, really, big mistake. We do EM here and it would be a nightmare if we used random numbers. There are ways to use tracking numbers where the ID of an individual is not compromised. Perhaps NIH should

[Histonet] Staining for Phospholipids

2013-02-01 Thread Duraine, Lita
Hello Histoland, Someone needs help in our lab with some fluorescent staining. He is staining drosophila retina with antibody PI4.5P2, or PIP2 for looking at Phospholipids around the membranes. He is using 4% Paraformaldehyde and Triton X in his protocol and is getting inconsistent results

[Histonet] RE: Specimens for TEM

2012-10-05 Thread Duraine, Lita
Hi Allyse, TEM is a whole new ball of wax so to speak. It depends on what you are fixing, and how you plan to fix it. Typically you would start with Paraformaldehyde and a Glutaraldehyde mix such as Karnovsky's. The after water washes do a secondary fix in Osmium Tetroxide followed by water w

[Histonet] Acid Phosphatase Reaction

2012-10-01 Thread Duraine, Lita
Hello to all Histologists, Perhaps someone can help me. At our institution we primarily use electron microscopy for slides with toluidine blue, and grids for TEM. The students here also do some immunostaining on their tissues. We have a student though who would like to try using the Acid Pho

RE: [Histonet] Diamond Knives

2012-03-15 Thread Duraine, Lita
Philip, Try also Diatome Diamond Knives. http://www.diatomeknives.com/ Regards, Lita Duraine EM Technologist Bellen Lab HHMI- Molecular Genetics -Original Message- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Mitchel

[Histonet] Multiple stain for epoxy sections

2012-03-02 Thread Duraine, Lita
Hello Histonet Users, I have decided that I should ask the experts. I regularly thick section muscle sections in Embed 812 for bouton identification. I normally use Toluidine blue. I am having trouble differentiating between boutons and a type of vacuole that occurs within the same tissue and