Cited by 47Endometriosis Research and TreatmentPain Mechanisms and TreatmentsSexual function and dysfunction studies

Influence of endometriosis on visceromotor and cardiovascular responses induced by vaginal distention in the rat.

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Nagabukuro, Hiroshi, Berkley, Karen J.·2007·Pain

Abstract

This study examined pseudoaffective responses elicited by vaginal distention in urethane-anesthetized rats, and tested hypotheses that responses would be increased by endometriosis (ENDO) and vary with the estrous cycle. Three groups were studied: ENDO, shamENDO, and Naive. ENDO was induced by autotransplanting small pieces of uterine horn (or, for shamENDO, fat) on mesenteric arteries. Ten weeks later, rats in proestrus or metestrus were anesthetized with urethane. Distendable latex balloons were inserted into the vaginal canal. While an increasing series of vaginal distentions was delivered, changes in electromyographic activity of the external oblique musculature (visceromotor response, VMR) and mean arterial pressure (pressor) responses were simultaneously measured. Vaginal distention produced VMR and pressor responses in all groups. These responses were significantly greater in ENDO than in the other groups, and greater in proestrus than metestrus. Although the overall amount of cystic tissue was greater in proestrous than metestrous rats, there was no correlation between these amounts and VMR or pressor responses. Acute spinalization (T8-T9) and bilateral pelvic, but not hypogastric, neurectomy attenuated both VMR and pressor responses, supporting the hypothesis that vaginal nociception involves suprathoracic spinal processing of information conveyed by the pelvic nerve. These effects on VMR and pressor responses to vaginal distention parallel behavioral escape responses to the same stimuli reported previously. The findings encourage continued use of VMR and pressor responses for further investigation of mechanisms underlying pain associated with ENDO and its potential treatment.

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Crossref · 10.1016/j.pain.2007.04.039

Cites

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  • The amount of cystic growth does not correlate with hyperalgesic severity in ENDO rats.

    “the amount of cystic growth does not correlate with hyperalgesic severity [8], [9].”
  • The ENDO model's surgical control (shamENDO) develops neither cysts nor pain symptoms.

    “The ENDO model’s surgical control (shamENDO) develops neither cysts nor pain symptoms [10,38].”

    From Endocannabinoid involvement in endometriosis. (2010) · cites this paper as [38]

  • A rat model of surgically-induced endometriosis (ENDO) develops pain symptoms similar to those of women, including vaginal hyperalgesia and vaginally-referred abdominal muscle hyperalgesia.

    “A rat model of surgically-induced endometriosis (ENDO), in which ectopic uterine cysts form in the abdomen [51], develops pain symptoms similar to those of women, including vaginal hyperalgesia (10) and vaginally-referred abdominal muscle hyperalgesia [38].”

    From Endocannabinoid involvement in endometriosis. (2010) · cites this paper as [38]

  • All assessments were done >6 wks after surgery, when ENDO-induced hyperalgesia is fully-developed and stable.

    “All assessments were done > 6 wks after the surgery; i.e., when ENDO-induced hyperalgesia is fully-developed and stable [10,45,38].”

    From Endocannabinoid involvement in endometriosis. (2010) · cites this paper as [38]

  • Studies were done when the rat was in proestrus, the estrous stage when hyperalgesia in the ENDO model is most severe.

    “Studies were done when the rat was in proestrus, the estrous stage when hyperalgesia in the ENDO model is most severe [10,45,38].”

    From Endocannabinoid involvement in endometriosis. (2010) · cites this paper as [38]

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Cites

Flagged first, then by citations

Research works printed but not linked: 4

  1. Berkley KJ, Hubscher CH. Visceral and somatic sensory tracts through the neuroaxis and their relation to pain: lessons from the rat female reproductive system. In: Gebhart GF, editor. Visceral Pain, Progress in Pain Research and Management. Vol. 5. Seattle: IASP Press; 1995. pp. 195–216. [Google Scholar]
  2. Berkley KJ, Rapkin AJ, Storey-Workley M, Papka ME. Program No.142.7. 2006 Neuroscience Meeting Planner. Atlanta, GA: Society for Neuroscience; 2006. Endometriosis in women: a pilot study of differences in innervation of the abnormal growths in women with or without pain. Online. [Google Scholar]
  3. McGinty KA, Dmitrieva N, Liu Y, McAllister SL, Accius BE, Stack A, Mackie K, Berkley KJ. Program No. 142.3. 2006 Neuroscience Meeting Planner. Atlanta, GA: Society for Neuroscience; 2006. Endometriosis in the rat: estrous changes in size, vascularization, and innervation of the ectopic growths. Online. [Google Scholar]
  4. Zhang GH, Liu Y, Dmitrieva N, Berkley KJ. Program No.142.4. 2006 Neuroscience Meeting Planner. Atlanta, GA: Society for Neuroscience; 2006. Endometriosis in the rat: estrous changes in the content of cytokines, chemokines, and growth factors in the ectopic growths. Online. [Google Scholar]

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Authors
Nagabukuro, H., & Berkley, K. J.
Affiliations
Florida State University (US)
Venue
Pain
Published
2007-11
Volume
132
Issue
Supplement 1
Pages
S96-S103
ISSN
0304-3959 (ISSN-L)
OpenAlex
W2144984385
Cited by
47
References
31
Citations by year
2025: 1 · 2024: 3 · 2023: 3 · 2022: 1 · 2021: 4 · 2020: 5 · 2019: 2 · 2017: 4 · 2016: 3 · 2015: 1 · 2014: 2 · 2013: 2 · 2012: 3
FWCI
3.32
Type
journal article
Language
en
Open access
Locations
  • Pain (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (R21DK063937)
  • National Institute of Neurological Disorders and Stroke (R01-NS-11892, R01NS011892)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Endometriosis Research and Treatment
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Sexual function and dysfunction studies
Keywords
endometriosis, vaginal distention, visceromotor response, cardiovascular response, pressor response, estrous cycle, pelvic nerve, spinal nociceptive processing, neurectomy, visceral pain
MeSH terms
Abdominal Muscles, Afferent Pathways, Animals, Blood Pressure, Cardiovascular Physiological Phenomena, Disease Models, Animal, Endometriosis, Female, Hypogastric Plexus, Nociceptors, Pain Measurement, Physical Stimulation, Pressure, Reflex, Abdominal, Vagina, Rats, Sprague-Dawley, Pelvic Pain, Autonomic Pathways, Visceral Afferents, Rats

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