pdgf also rapidly increased total water-soluble inositol phosphates , measured after anion-exchange chromatography on perchloric acid-extracted cells , and simultaneously raised [ ca2+ ] i , measured by the fluorescent intracellular probe fura-2 , from basal levels of 83.1 +/- 6.8 to a peak of 229.4 +/- 20.0 nm .
C0003075
anion
C0021966
i