Beta-cell functionality is important for blood-glucose homeostasis, which is evaluated at single-cell resolution using a genetically encoded reporter for calcium influx.
Janjuha, S., Pal Singh, S., Ninov, N. Analysis of Beta-cell Function Using Single-cell Resolution Calcium Imaging in Zebrafish Islets. J. Vis. Exp. (137), e57851, doi:10.3791/57851 (2018).