| 释义 |
sympathin Physiol.|ˈsɪmpəθɪn|
[f. sympatho- + -in1.]
A hormone which acts as a mediator of nerve impulses at sympathetic nerve synapses; now effectively a disused synonym of noradrenaline.
1931Cannon & Bacq. in Amer. Jrnl. Physiol. XCVI. 411 Because the substance is derived from structures under sympathetic control, when they are influenced by sympathetic impulses, we suggest that it be called sympathin. 1938Nature 12 Feb. 266/2 The authors reject Bacq's rather factious criticisms of their theory of sympathins E and I. 1946Ibid. 20 July 88/1 In Cannon's remaining active years he was largely concerned with evidence as to the nature of the sympathetic transmitter ‘sympathin’, which he believed to be not identical with adrenaline. 1971Ibid. 2 Apr. 340/2 In an attempt to demonstrate this increase the transmitter ‘sympathin’ liberated from sympathetic nerve to the spleen was examined. |