In comparable doses, dynorphin A2-17, which is inactive at the opioid receptor,produced similar alterations in EAA as dynorphin A1-17, whereas dynorphin A1- 8 caused significantly smaller changes.

• 相同剂量的非阿片受体激动剂DynA2－17和阿片受体激动剂DynA1-17对脊髓EAA的改变相似，DnyA1-8也产生显著的EAA改变，但程度较小。