Asset Details
Do you wish to reserve the book?
A circadian rhythm-gated subcortical pathway for nighttime-light-induced depressive-like behaviors in mice
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A circadian rhythm-gated subcortical pathway for nighttime-light-induced depressive-like behaviors in mice
Do you wish to request the book?
A circadian rhythm-gated subcortical pathway for nighttime-light-induced depressive-like behaviors in mice
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A circadian rhythm-gated subcortical pathway for nighttime-light-induced depressive-like behaviors in mice
2020
Overview
Besides generating vision, light modulates various physiological functions, including mood. While light therapy applied in the daytime is known to have anti-depressive properties, excessive light exposure at night has been reportedly associated with depressive symptoms. The neural mechanisms underlying this day–night difference in the effects of light are unknown. Using a light-at-night (LAN) paradigm in mice, we showed that LAN induced depressive-like behaviors without disturbing the circadian rhythm. This effect was mediated by a neural pathway from retinal melanopsin-expressing ganglion cells to the dorsal perihabenular nucleus (dpHb) to the nucleus accumbens (NAc). Importantly, the dpHb was gated by the circadian rhythm, being more excitable at night than during the day. This indicates that the ipRGC→dpHb→NAc pathway preferentially conducts light signals at night, thereby mediating LAN-induced depressive-like behaviors. These findings may be relevant when considering the mental health effects of the prevalent nighttime illumination in the industrial world.An et al. discovered a new brain pathway in mice that conveys light signals from the retina to mood-relevant subcortical nuclei under circadian gating and thereby mediates depressive-like behaviors induced by abnormal nighttime light exposure.
