An investigation on the changes of serum CCK-8, substance P, and 5-HT in patients with post-stroke insomnia

The incidence of PSI was relatively high, but it could not be proved that CCK-8, SP, and 5-HT were involved in the pathogenesis of PSI. There might exist other neurotransmitters involved in the pathophysiological process of PSI, which should be further explored.