Does a specific HIF-2a inhibitor exist?

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Dose-response L-Glutamine in vivo?

I want to do L-Glutamine injections in mice to check mTORC1 activation in muscle. I cannot find dose-response or time-course studies in literature. Could anyone help me out?

31 December 2016 6,462 1 View

Is there an antibody available yet for phospho-Sestrin2?

I was wondering if there was an antibody available yet (commercially) for phospho-sestrin2 (Thr 232, Ser249 or Ser279). According to the paper attached Sestrin2 should be able to get...

08 September 2016 7,032 2 View

Any advice on the increase in blood leucine after a meal?

Does anyone have good reference papers looking at the increase in leucine concentration after a standard meal (leucine gavage) in humans and mice?

09 October 2015 590 2 View

What is the best antibody for human-mouse HIF-2a detection?

I've tried the novus #NB100-122, got a lot of (aspecific) bands.

06 July 2014 5,842 9 View

Can you measure D-β-Hydroxybutyrate in human plasma samples stored in -80°C?

The venous samples have been taken in normal EDTA tubes, centrifuged and then stored in -80°C. They have not been DE-proteined by perchloric acid.

06 July 2014 8,178 1 View

Can anyone help with MCT1 and 4 quantification on human samples by western blot?

We want to measure MCT1 and 4 on human muscle samples by the use of western blot. On which exact kDa appears the band? Is this a little higher than the expected 42 kDa (eg 49). Information is much...

04 May 2014 5,231 0 View

Contamination of TRIzol by plastic - any thoughts?

We recently put a couple of ML of TRIzol in plastic tubes. RNA extraction afterwards yielded contaminated RNA, indicated by a >2,4 260/280 ratio. Is it possible that the storage of TRIzol in...

03 April 2014 3,532 1 View

Electrophoresis - breaking glass cover plates. Any suggestions?

We are doing Western Blots with home made gels. The problem we are having since a couple of months is that the glass cover plates regularly break when gel-electrophoresis is finished. We use a...

07 August 2013 7,109 6 View

How does one generate membrane fractions out of frozen (-80°C) muscle biopsies?

I'm looking for a method to generate membrane fractions (not crude membrane, but cell membrane fractions) out of frozen (-80°C) human muscle biopsies. I know it's usally done by sucrose gradient...

05 June 2013 1,448 1 View

Does the time between the making of a home-made (10%) gel and the actual loading of the gel influence the resolution of the bands?

I normally let the gel harden overnight, but is this necessary? Can I, for example, prepare the gel in the morning and load it with proteins in the afternoon?

03 April 2013 2,879 2 View

Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

Could it be a cell culture contamination?

Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...

09 August 2024 2,824 3 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

To perform transfection with DharmaFECT Duo in AGS cells. Could you tell me what the ideal concentration is to avoid significant cytotoxicity?

I would like to perform transfection with the reagent DharmaFECT Duo (Horizon) on the AGS cell line. Could you please inform me of the optimal concentration to use without causing cytotoxicity in...

03 August 2024 3,851 1 View

Can i quantify a nanoparticle encapsulated in cell culture medium by hplc?

Hello, if you made a transwell assay where you incubate the cells with a nanoparticle-encapsulated drug and considering that in the oposite compartment you'll have both the free and encapsulte...

03 August 2024 2,730 1 View