ArticleReproductive sciences (Thousand Oaks, Calif.)2016
Endometriosis Is Associated With a Shift in MU Opioid and NMDA Receptor Expression in the Brain Periaqueductal Gray.
Article in Reproductive sciences (Thousand Oaks, Calif.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
What it found
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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
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.
- WERF Endometriosis Phenome and Biobanking Harmonisation Project for Experimental Models in Endometriosis Research (EPHect-EM-Homologous): homologous rodent models.Molecular human reproduction · 2025Pooled it
- Cancer-like Hallmarks of Endometriosis: The Role of Estrogen Signaling and Stem Cell Plasticity.International journal of molecular sciences · 2026Review
- Neuroendocrine-Immune Axis in Endometriosis: A Review on How the Nervous System Goes Beyond Pain Perception.Biomolecules · 2025Review
- Exploring the Shared Pathogenesis Mechanisms of Endometriosis and Cancer: Stemness and Targeted Treatments of Its Molecular Pathways-A Narrative Review.International journal of molecular sciences · 2024Review
- Endometriosis and Opioid Receptors: Are Opioids a Possible/Promising Treatment for Endometriosis?International journal of molecular sciences · 2023Review
- Endometriosis and polycystic ovary syndrome are diametric disorders.Evolutionary applications · 2021Review
- Environmental Manipulations as an Effective Alternative Treatment to Reduce Endometriosis Progression.Reproductive sciences (Thousand Oaks, Calif.) · 2018Article
- Effects of histone methyltransferase inhibition in endometriosis.Biology of reproduction · 2018Article
- Exploring the Mechanisms of Electroacupuncture-Induced Analgesia through RNA Sequencing of the Periaqueductal Gray.International journal of molecular sciences · 2017Article
- Impact of Psychological Stress on Pain Perception in an Animal Model of Endometriosis.Reproductive sciences (Thousand Oaks, Calif.) · 2017Article
- EPScientific reports · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
Studies have examined how endometriosis interacts with the nervous system, but little attention has been paid to opioidergic systems, which are relevant to pain signaling. We used the autotransplantation rat model of endometriosis and allowed to progress for 60 days. The brain was collected and examined for changes in endogenous opioid peptides, mu opioid receptors (MORs), and the N-methyl-d-aspartate subunit receptor (NR1) in the periaqueductal gray (PAG), since both of these receptors can regulate PAG activity. No changes in endogenous opioid peptides in met- and leu-enkephalin or β-endorphin levels were observed within the PAG. However, MOR immunoreactivity was significantly decreased in the ventral PAG in the endometriosis group. Endometriosis reduced by 20% the number of neuronal profiles expressing MOR and reduced by 40% the NR1 profiles. Our results suggest that endometriosis is associated with subtle variations in opioidergic and glutamatergic activity within the PAG, which may have implications for pain processing.
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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.