Osmotic stress affects exocytosis and the amount of neurotransmitter released during this process. We demonstrate how combining electrochemical methods together with transmission electron microscopy can be used to study the effect of extracellular osmotic pressure on exocytosis activity, vesicle quantal size, and the amount of neurotransmitter released during exocytosis.
Fathali, H., Dunevall, J., Majdi, S., Cans, A. Monitoring the Effect of Osmotic Stress on Secretory Vesicles and Exocytosis. J. Vis. Exp. (132), e56537, doi:10.3791/56537 (2018).