Calcium requirement for activation of intact aortic smooth muscle.

@article{Breemen1977CalciumRF,
  title={Calcium requirement for activation of intact aortic smooth muscle.},
  author={Casey van Breemen},
  journal={The Journal of physiology},
  year={1977},
  volume={272 2},
  pages={317-29}
}
1. Elevation of [K(+)](e) induced a contraction of rabbit aorta. If 10 mM-La(3+) was applied to rabbit aortae prior to [K(+)](e) elevation no contraction occurred. When 10 mM-La(3+) was applied simultaneously with, or at short time periods after, elevation of [K(+)](e) graded contractions were obtained whose magnitudes were higher if La(3+) was added at a later stage.2. Net cellular Ca fluxes associated with these graded contractions were measured using (45)Ca as well as atomic absorption… CONTINUE READING

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