Considered as a transmitter and medium of non-cholinergic and non-adrenergic nerves, no involves in introduction of sense of pain and transmission of aesthesis.
NO被认为是非胆碱能、非肾上腺素能神经的递质或介质，参与痛觉传入与感觉传递过程。
2
DR increases the expression of syn of cortical and hippocampal neurons by improving the injury of cholinergic neuron to recovery the function of synaptic transmission.