ArticleEuropean journal of pain (London, England)2016
Sciatic endometriosis induces mechanical hypersensitivity, segmental nerve damage, and robust local inflammation in rats.
Article in European journal of pain (London, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 19 citations in OpenAlex.
- Review
- U0126 and BAY11-7082 Inhibit the Progression of Endometriosis in a Rat Model by Suppressing the MEK/ERK/NF-κB Pathway.Women's health reports (New Rochelle, N.Y.) · 2023Article
- Review
- Translocator protein 18 kDa: a potential therapeutic biomarker for post traumatic stress disorder.Metabolic brain disease · 2020Review
- Behavioural and neural responses to aversive visceral stimuli in women with primary dysmenorrhoea.European journal of pain (London, England) · 2019Article
- Fractalkine/CX3CR1 Contributes to Endometriosis-Induced Neuropathic Pain and Mechanical Hypersensitivity in Rats.Frontiers in cellular neuroscience · 2018Article
- Perineural invasion in endometriotic lesions contributes to endometriosis-associated pain.Journal of pain research · 2018Article
- Relevant human tissue resources and laboratory models for use in endometriosis research.Acta obstetricia et gynecologica Scandinavica · 2017Review
- A model for radiating leg pain of endometriosis.Journal of bodywork and movement therapies · 2016Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundEndometriosis is a common cause of pain including radicular pain. Ectopic endometrial tissue may directly affect peripheral nerves including the sciatic, which has not been modelled in animals.
methodsWe developed a rat model for sciatic endometriosis by grafting a piece of autologous uterine tissue around the sciatic nerve. Control animals underwent a similar surgery but received a graft of pelvic fat tissue.
resultsThe uterine grafts survived and developed fluid-filled cysts; the adjacent nerve showed signs of swelling and damage. Mechanical and cold hypersensitivity and allodynia of the ipsilateral hindpaw developed gradually over the first 2 weeks after the surgery, peaked at 2-5 weeks, and was almost resolved by 7 weeks. Control animals showed only minor changes in these pain behaviours. Histological signs of inflammation in the uterine graft and in the adjacent nerve were observed at 3 weeks but were resolving by 7 weeks. In vivo fibre recording showed increased spontaneous activity, especially of C-fibres, in sciatic nerve proximal to the uterine graft. Several pro-inflammatory cytokines including interluekin-18, VEGF, fractalkine, and MIP-1α, were elevated in the uterine graft plus sciatic nerve samples, compared to samples from normal nerve or nerve plus fat graft. Growth associated protein 43 (GAP43), a marker of regenerating nerve fibres, was observed in the adjacent sciatic nerve as well as in the uterine graft.
conclusionsThis model shared many features with other rat models of endometriosis, but also had some unique features more closely related to neuropathic pain models. WHAT DOES THIS STUDY/REVIEW ADD: Some especially painful forms of endometriosis are essentially neuropathic, because peripheral nerves are directly affected by nearby ectopic endometrial tissue. We modelled endometriosis by implanting autologous uterine tissue around rat sciatic nerve. We observed mechanical and cold pain behaviours along with signs of inflammation and nerve damage and increased pro-inflammatory cytokines at the implant site. Pain behaviours correlated with signs of nerve inflammation and damage rather than with cyst survival.
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