Karthikeyan R, Davies WIL, Gunhaga L (2023) Non-image-forming functional roles of OPN3, OPN4 and OPN5 photopigments. J Photochem Photobiol 15:100177. doi: 10.1016/j.jpap.2023.100177
Objective: To review recent studies that focus on the non-image-forming functional roles of the OPN3, OPN4, and OPN5 photopigments.
Summary: This publication explores the non-image-forming functions of OPN3, OPN4, and OPN5 photopigments, highlighting their roles in various physiological processes such as regulation of circadian rhythms, pupillary light responses, modulation of sleep, mood, and hormone secretion, providing insights into the diverse functions of these photopigments beyond vision.
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