Abstract:The current study explored whether capsazepine changed basal cytosolic free Ca2+ concentrations ([Ca2+]i) levels in suspended Madin Darby canine kidney (MDCK) cells cells by using fura‐2 as a Ca2+‐selective fluorescent dye. At concentrations of 10–200 µM, capsazepine increased [Ca2+]i in a concentration‐dependent manner. The Ca2+ signal was partially reduced by 40% by removing extracellular Ca2+. Capsazepine induced Mn2+ quench of fura‐2 fluorescence, indirectly implicating Ca2+ entry. Capsazepine‐induced Ca2+… Show more
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