Swedin G
Br J Pharmacol. 1972 Jan;44(1):160-1. doi: 10.1111/j.1476-5381.1972.tb07248.x.
The mechanical responses of isolated fieldstimulated vasa deferentia from rats 3-10 days old were abolished by low doses of drugs blocking alpha-adrenoceptors. In preparations from older animals this effect was absent or there was a potentiation of the responses. The effect of atropine also changed during postnatal development. In the early period a moderate (10-40%) decline of the nerve-induced responses was generally observed, but later even high concentrations of atropine were without effect.
低剂量的α-肾上腺素能受体阻断药物可消除3至10日龄大鼠离体场刺激输精管的机械反应。在老年动物的制备物中，这种作用不存在或反应增强。阿托品的作用在出生后发育过程中也发生了变化。在早期，通常观察到神经诱导反应适度（10% - 40%）下降，但后来即使是高浓度的阿托品也没有作用。
