Hello, if the plant extract contains steroids based on its phytochemical results, is steroid an antihyperglycemic agent?

Our plant sample contains steroids based on the phytochemical results, and were having a hard time looking for some references about steroids' effect on lowering blood glucose level on mice.

31 January 2020 9,763 3 View

How to mutate a DNA sequence to stop binding to its specific primer?

I am doing reverse transcription using a semi-suppressive PCR therefore I introduce a template switching oligo at the 5' end of my transcript which is complementary to the PCR handle at the 3'...

03 October 2018 4,282 2 View

Is anyone aware of a plugin out there to perform discriminant analysis in PSPP?

If so, could you point me in the right direction? Can't seem to find anything.

09 January 2014 3,600 1 View

Need help making a Fiji (ImageJ) Tool

I'm working on manually analyzing a series of photographs of archaeological artifacts. Each photo contains a series of stone tool fragments laid out on a neutral background. I'm using Fiji image...

06 January 2014 5,335 10 View

Any common protocol for inflammatory stimulation of murine endothelial cells in vitro?

26 December 2013 1,701 9 View

Can the measurement of cytokine levels according to their half lives be useful?

A question of cytokine kinetics. In an activation assay, we usually want to measure effects of our treatment (whatever this might be) on pro- or anti-inflammatory cytokines. Most commonly...

28 November 2013 2,096 3 View

MPO activity assay - can anyone help?

I homogenized murine lungs in 0.5% w/v HDAB in 50mM sodium phosphate buffer to perform a MPO activity assay. The protocol I do have instructs that I should use 20ul of my samples with 160ul TMB...

01 October 2013 8,409 3 View

How fast should an ELISA plate be read?

I finished an ELISA assay and read it to discover two hours later that I saved the 630nm data which I used to correct my 450nm data. I immediately measured the plate again but I'm not sure whether...

05 September 2013 4,109 21 View

qPCR data representation

I have some qPCR data which I want to represent in graphs. I used to use the DCt values but the problem is that they are reciprocal to the expression changes (high DCt values means low expression)...

13 July 2013 4,875 2 View

What are your experiences with conducting (and publishing) online surveys?

I am interested in conducting an online survey and curious as to the requisite ethical approval and the receptiveness of peer-reviewed journals to the results. If anyone has any experience in...

02 July 2013 8,531 40 View

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02 March 2021 3,060 3 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Is it possible for two human neuronal cell lines to have different gene sequence for the same protein?

I am looking at the ATP1A2 (Sodium/Potassium ATPase alpha subunit 2) in two human neuronal cell lines. Expression levels of this protein seems to be almost equal when detected by one antibody....

01 March 2021 3,607 3 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Do you need the CMV enhancer before the CMV promotor for a proper function of CMV on the gene that follows?

I'm a student and I have to produce a cell line with a knockin for the NRF2 gene with GFP. I have to put a promotor in front of the GFP because the gene will be too far away from the promotor of...

28 February 2021 7,127 2 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

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28 February 2021 9,936 2 View

When is it unnecessary to change organisational culture?

As a former management practitioner, I recall a generally accepted view that changing organisational culture is difficult, so you should only attempt it if the organisational change that you are...

27 February 2021 2,595 8 View

Does RNAiMAX transfection reagent work in serum free medium?

I diluted siRNA and RNAiMAX in opti-MEM and added to the cells which they were in the growth medium. Is it a right way? or should I culture cells in the opti-MEM medium for a while and not in...

26 February 2021 10,041 3 View