I am trying to perform HE staining of small intestine. I used OCT solution to make sections.
After HE staining when I look my slides under microscope, I do not get intact villi. In much of the cases, villi are broken. Does anyone can help me?
Dear Sailesh
Did you make any chemical fixation?
How did you make the dissection?
Dear Robson Campos Gutierre,
After washing the intestine with PBS, I fixed the intestine by keeping it in 10% formaldehyde neutral buffer solution for overnight.
why did you use OCT? if you fixed the tissue in formalin, then you had to proceed with FFPE preparation. OCT and formalin are not compatible. if you need to preserve villi, make FFPE .
We are currently working on a cytosolic protein; however, we think that this protein also has a secreted form and can be detected in the bloodstream. As there is no ELISA kit available for this...
01 February 2020 468 2 View
I want to study whether two proteins: Myc-tagged protein A and Flag-tagged protein B, interacts with each other or not. For that I co-expressed these proteins in HEK293T cells, and later (after 48...
01 February 2019 1,927 4 View
I want to determine whether protein A and protein B interacts with each other by co-immunoprecipitation analysis. For that I prepared Myc-tagged protein A and Flag-tagged protein B plasmid DNAs. I...
01 February 2019 994 4 View
I am just wondering whether different labs prepare immortalized bone marrow derived macrophages (BMDM) in their labs. I have experience of preparing primary BMDM from mice femur, but have no idea...
31 December 2018 8,956 2 View
I have been working on two proteins. And I think that these two proteins interact with each other. To prove that, I analyzed there association by endogenous IP, but unfortunately I could not get...
11 December 2018 9,770 4 View
Articles published in journals contains both reference and citation, while books contain only reference. Does anybody have idea about it?
09 October 2018 971 0 View
I just started to do EMSA to check interaction of a protein and DNA. When I checked the binding buffer used for EMSA, I found that EDTA is also used. I know that EDTA is a chelating agent, and...
04 May 2018 2,719 1 View
I have been recently trying to isolate primary microglia from mice pups brain (P0-P1). To prepare mixed microglia culture, I used 3 brains for a 75 cm2 flask. After around 10-12 days, astrocyte...
03 April 2018 3,801 12 View
Currently, I am doing knockdown of certain genes by shRNA technique. We use lenti-virus for this process. The problem is that we are getting low titre. The experimental procedure is: Day 1: Seed 7...
04 May 2017 2,452 6 View
I am culturing an adherent cell in a 6-well plate. Unfortunately, one of the well got contaminated. Now, I need to change the media, and I just afraid while doing so the contamination get into...
08 September 2016 7,925 6 View
I am puzzled about the properties of gelatin, when used for tissue-embedding. Hard gelatin can be melt again by temperatures about 40°C. Formalin-fixed gelatin is like crosslinked protein and...
07 August 2024 1,686 1 View
I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...
07 August 2024 1,028 0 View
I am staining some brain sections stored in cryoprotectant that express a Histone H2B- GFP fusion protein that were generated ~10 years ago. I know I need to enhance signal with an anti-GFP...
07 August 2024 5,338 2 View
Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...
07 August 2024 3,218 4 View
Hello everyone, I have recently started using the microtome device for sectioning of paraffin-embedded mice lung. While I had some success in sectioning and observing proper ribbons, some of my...
06 August 2024 666 4 View
To compare positive and negative cell populations in flow cytometry, should I compare unstained cells with antibody stained cells? Or with the isotype control? Most papers show comparison with...
06 August 2024 6,728 6 View
Hi all, I was just wondering if anyone has experience with multiplexing a mouse monoclonal primary and a rat primary. I'm trying to multiplex by incubating them in the same well but was told by a...
06 August 2024 9,710 1 View
We assume this to be true. We also assume that the vacuum bomb is the latest version of explosives with an explosive power of a few to ten kg of TNT equivalent. It has the unique characteristic of...
04 August 2024 4,534 1 View
I want to Estimate surface heat fluxes using MyLake, but I don't have all the initial values in model parameters section and other sections,is there a way?
04 August 2024 1,537 1 View
Hi guys If anyone is currently working on aging cells, you guys would like to give me some advice. I'm testing against biomarker (SA-beta-Gal), I encountered a false positive in the control group...
02 August 2024 6,735 1 View