Buznikov G A, Turpaev T M
Zh Evol Biokhim Fiziol. 1987 Jul-Aug;23(4):423-32.
The neurotransmitters found in early ("pre-nervous") embryos of Metazoa operate at the intracellular level. In these embryos, the transmitter receptors (or their functional equivalents) and adenylate cyclase coupled with them are localized intracellularly. Intracellular functions of neurotransmitters may be also found in the differentiated neurons of adult animals.
后生动物早期（“神经形成前”）胚胎中发现的神经递质在细胞内水平发挥作用。在这些胚胎中，递质受体（或其功能等效物）以及与之偶联的腺苷酸环化酶定位于细胞内。神经递质的细胞内功能在成年动物的分化神经元中也可能存在。
