Circadian rhythm in rat retinal dopamine.
Rat retinal dopamine concentration and synthetic rate exhibit a circadian rhythm that persists in the absence of time cues. Although the population of retinal amacrine cells containing dopamine is small, retinal dopamine neurones may lie on the pathway mediating light information to the circadian system.
D000818:Animals; D002940:Circadian Rhythm; D004298:Dopamine / Q000032:analysis / Q000096:biosynthesis*; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D012160:Retina / Q000032:analysis / Q000378:metabolism*
D004298:Dopamine