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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Mol Cell Biochem. 2018 Jan 9;446(1-2):53–62. doi: 10.1007/s11010-018-3272-5

Fig. 1.

Fig. 1

Extracellular ATP, but not capsaicin, leads to an intracellular calcium rise in GL261 cells cultured adherently. a Brightfield and pseudocolored photomicrographs of GL261 cells (×200 magnification). Pseudocolored images depict calcium levels under basal conditions and approximately 30 seconds after exposure to 100 μM capsaicin (CAP) or 1 mM ATP. In each image, bars display the pseudocolor scale, from relatively low (cool colors) to relatively high (warm colors) levels of intracellular calcium. b Traces depict the fura-2 fluorescence ratio over the course of 2 minutes for 12 cells exposed to 100 μM capsaicin (CAP) and 1 mM ATP (arrows)