Pineal and its Hormone Melatonin

Re: SCN cells capable of c-Fos photoinduction

Dear Dr. Pang,

thank you for your questions. Using the standard immunocytochemistry, we can only distinguish cells producing c-Fos protein as dark dots above the background staining. This tells us how many cells in a section respond by production of c-Fos protein as a function of time. The other population of cells - non responding to light - would need to be visualized by any of the commonly used counterstaining methods and counted in addition to the ICC stained cells.

All the best,

Alena Sumova

Mon Dec 14