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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Calcium regulation during stimulus-secretion coupling: continuous measurement of intracellular calcium activities.

Accurate measurements of intracellular calcium activities in salivary gland epithelial cells of the insect Phormia regina were obtained with microelectrodes in which N,N'-di(11-ethoxycarbonyl)undecyl-N,N'-4,5-tetramethyl-3,6-dioxaoctane diacid diamide wsa incorporated in a liquid membrane system. When calibrated in solutions approximating the ionic concentration of the cell interior, these microelectrodes gave rapid stable responses that were linear functions of the logarithm of calcium activities and were not affected by potassium, sodium and magnesium. Continuous monitoring of calcium activities during serotonin-induced saliva release provided direct evidence of hormonal influence on transmembrane calcium movement and spontaneous regulation of intracellular calcium by stimulated cells.[1]

References

  1. Calcium regulation during stimulus-secretion coupling: continuous measurement of intracellular calcium activities. O'Doherty, J., Youmans, S.J., Armstrong, W.M., Stark, R.J. Science (1980) [Pubmed]
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