Is it normal to get higher cell activity in test during Cytotoxicity assay

I used CCk-8 kit (works on dehydogenase activity in viable cells) to do cytoxicity assay and I got higher absorbance (@450 nm, reference- 650 nm) for my tests than control (cells in microwell...

03 April 2016 8,631 2 View

Difference between silk produced by spider and silkworm?

regards Jitendra

11 December 2014 9,589 0 View

What are the merits/demerits in using S-nitroso human serum albumin for cancer treatment?

Thanks and regards Jitendra

11 December 2014 5,079 5 View

Why bacterial system is still used for protein production?

Why bacterial system is still used for protein production for some protein knowing that it doesn't have a system to support post translational modification?

11 December 2014 5,971 5 View

What could be the reason of getting a lawn of transformed cells on LB plate?

10 November 2014 4,636 4 View

What is the pI of a monoclonal antibody?

I was wondering if there is a fixed pI for all monoclonal antibodies as most of the labs use glycine and phosphate buffer systems for MAb isolation using Protein A-Affinity (in HPLC).

10 November 2014 4,700 3 View

What happens to the enzyme kinetics when in solution and when immobilized?

10 November 2014 3,400 15 View

Do epithelial cancer cells release nitric oxide?

If yes, then what effect does it impart?

09 October 2014 8,166 3 View

Why is it important to know the protein conc. accurately to know the protein structure using circular dichroism?

Thanks

09 October 2014 2,142 10 View

Has anyone ever tried something new during the plasmid isolation from bacteria cells which resulted in improved plasmid yield?

Has anyone ever tried something new during the plasmid isolation from bacteria cells which resulted in improved plasmid yield? Suggestions can cover centrifugation, changing the concentration of...

08 September 2014 9,297 7 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

No title

02 March 2021 3,060 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 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 necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 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