A retinal contribution to opioid-induced sleep disorders?

A retinal contribution to opioid-induced sleep disorders?
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DOI:
10.3389/fnins.2022.981939
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发表时间:
2022
影响因子:
4.3
通讯作者:
Vigh, Jozsef
Vigh, Jozsef
中科院分区:
医学2区
文献类型:
--
作者:
Bergum, Nikolas;Berezin, Casey-Tyler;Vigh, Jozsef

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Chronic opioid use is linked to persistent and severe sleep/wake disturbances in patients. These opioid-related sleep problems increase risk for developing opioid dependence, mood disorders and in turn overdose in chronic pain patients receiving opioid therapy. Despite the well-established link between long-term opioid use and sleep disorders, the mechanism by which opioids perturb sleep remains unclear. Interestingly, animal studies indicate that opioids disrupt sleep/wake behaviors by altering an animal’s ability to synchronize their circadian rhythms to environmental light cycles (i.e., photoentrainment). A specific subset of retinal cells known as intrinsically photosensitive retinal ganglion cells (ipRGCs) that express μ-opioid receptors are exclusively responsible for transmitting environmental light information to sleep/circadian centers in the brain. Thus, this review will focus on the effect of opioids on ipRGCs and their projection regions that are involved in the photoentrainment of sleep/wake behaviors. Lastly, we discuss the viability of ipRGCs as a potential therapeutic target for treating opioid-related sleep/wake problems.
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