Luminescence assay for VEGFR-1 dimerization background signal went up?

I am working on a luminescence assay (one of the Glo-kits from Promega) to detect VEGFR-1 dimerization due to PlGF-2 binding. The background signal (control without ligand binding) suddenly went...

09 October 2018 5,365 0 View

PEI Max transfection: why did my cells die and media turn pink?

I did a PEI transfection in 6-well plate (non-binding), 2mL of CHO suspension cells at 1M/mL. The transfection was stopped after 3 hours. I checked the cells the next day with FACS and microscope...

03 April 2018 8,539 3 View

Is statistical analysis performed differently when using samples from each individual animal or samples pooled from several animals?

We pool samples from 3-5 animals and is stat analysis done differently comparing to testing samples from each separate animal?

31 December 2015 7,352 8 View

How to do statistics for studies used pooled animal samples?

stats

31 December 2015 8,686 1 View

How can I get rid of air bubbles trapped under coverslip for 8 chamber slide?

We culture cells in 8 chamber slides and do immunofluorescent staining. We put one drop of mounting media on each of the 8 wells and drop the coverslip at a 45 degree angle. Does anyone have tips...

31 December 2015 9,786 4 View

How is glucose concentration in beta-cell (islet) culture chosen?

11 December 2015 4,244 4 View

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 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

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

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Reagents for histology slides?

Dear all, I am planning to study histology and want to do that at home. I have only stained a blood smear with Giemsa but now want to try a wider range of animal tissues. What reagents will I...

24 February 2021 5,430 3 View

Can MicroRNA cross the blood brain barrier?

In diseased conditions, many genes and gene products are visible in the bloodstream. So my question is whether we can find traces of microRNA which is involved in disease and disorder in blood serum?

24 February 2021 7,064 3 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View