Cholecystokinin-8-like immunoreactivity in the rat anterior commissure revealed by immunocytochemistry

The present experimental immunohistochemical study demonstrated that one of the major components of the anterior commissure of the rat is the cholecystokinin-8-like immunoreactivity ( CCKI )-containing fiber system. We further showed that these fibers reached the contralateral side and dissociated into CCKI fibers in the ipsi- and contralateral anterior limbs.