Analysis of the birefringence of the smooth muscle anococcygeus of the rat, at rest and in contraction. I.
(1988) Journal of muscle research and cell motility — Vol. 9, n° 1, p. 9-17 (1988)
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- Abstract
- The birefringence of the rat anococcygeus muscle was measured at rest and in contraction. A large increase (+30%) of the optical retardation was observed in muscles fully stimulated by Noradrenaline, in isometric conditions. This was associated with a reduction of the muscle thickness (-12%), so that the birefringence increased by 48%. These changes were reversed upon relaxation. The relationship between the birefringence increase and the mechanical response was investigated as a function of time and of Noradrenaline concentration. Possible origins for the birefringence increase are considered: an increased density of birefringent material, mainly filaments, seems the most likely explanation of the results.
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Godfraind-De Becker, A., & Gillis, J.-M. (1988). Analysis of the birefringence of the smooth muscle anococcygeus of the rat, at rest and in contraction. I. Journal of muscle research and cell motility, 9(1), 9-17. https://doi.org/10.1007/BF01682144 (Original work published 1988)