ArticleNeurobiology of sleep and circadian rhythms2022
Endogenous opioid signaling in the retina modulates sleep/wake activity in mice.
Article in Neurobiology of sleep and circadian rhythms, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Alcohol and Opioids Modulate Excitatory Inputs to the SCN.bioRxiv : the preprint server for biology · 2026Article
- Exploring the role of beta-endorphin in activity-based anorexia in mice.Physiological reports · 2025Article
- Dopamine enhances GABAJournal of neurophysiology · 2024Article
- Dopamine enhances GABAbioRxiv : the preprint server for biology · 2023Article
- Post-Illumination Pupil Response and Sleep Quality in Patients With Glaucoma: The LIGHT Study.Investigative ophthalmology & visual science · 2023Article
- Morphine pharmacokinetics and opioid transporter expression at the blood-retina barrier of male and female mice.Frontiers in pharmacology · 2023Article
- µ-Opioid Receptors Expressed by Intrinsically Photosensitive Retinal Ganglion Cells Contribute to Morphine-Induced Behavioral Sensitization.International journal of molecular sciences · 2022Article
- A retinal contribution to opioid-induced sleep disorders?Frontiers in neuroscience · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Circadian sleep/wake rhythms are synchronized to environmental light/dark cycles in a process known as photoentrainment. We have previously shown that activation of β-endorphin-preferring μ-opioid receptors (MORs) inhibits the light-evoked firing of intrinsically photosensitive retinal ganglion cells (ipRGCs), the sole conduits of photoentrainment. Although we have shown that β-endorphin is expressed in the adult mouse retina, the conditions under which β-endorphin is expressed are unknown. Moreover, it is unclear whether endogenous activation of the MORs expressed by ipRGCs modulates the photoentrainment of sleep/wake cycles. To elucidate this, we first measured the mRNA expression of β-endorphin's precursor, proopiomelanocortin (POMC), at various times of day by quantitative reverse-transcription PCR.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.