Heterogeneity in the Ca²⁺ response elicited by beractant in NHLF.

<p>The application of 500 μg/ml of beractant, elicited different patterns of Ca²⁺ signals in cultured NHLF loaded with Fura-2. The intracellular Ca²⁺ signal consisted in <b>A)</b> a rapid Ca²⁺ spike (27.82% of the cells tested) which could be followed by <b>B)</b> Ca²⁺ oscillations (13.20%), <b>C)</b> sustained plateau (44.37%) or a <b>D)</b> plateau overlapped by Ca²⁺ oscillations (14.61%).