Evidence map›Paper›PMID 31667916›Full record

ArticleNeurogastroenterology and motility2020

Sex differences in the epigenetic regulation of chronic visceral pain following unpredictable early life stress.

Tijs Louwies, Beverley Greenwood-Van Meerveld

Open access · greenAbstract read
In one paragraph

Article in Neurogastroenterology and motility, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 28% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Pathology of pain and its implications for therapeutic interventions.Signal transduction and targeted therapy · 2024
    Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Sex Differences in Opioid Response Linked toJournal of clinical medicine · 2023
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Abdominal and Pelvic Pain: Current Challenges and Future Opportunities.Frontiers in pain research (Lausanne, Switzerland) · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Tijs LouwiesOklahoma Center for Neuroscience, University of Oklahoma Health Science Center, Oklahoma City, OK, USA.ORCID 0000-0003-4860-6100
Beverley Greenwood-Van MeerveldOklahoma Center for Neuroscience, University of Oklahoma Health Science Center, Oklahoma City, OK, USA.ORCID 0000-0002-2647-1316
University of Oklahoma Health Sciences Center · US

Funding

Amygdala Mediated Mechanisms Regulating Visceral PainR01DK119125 · NIDDK · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI JOHNSON, ANTHONY C · 2020 to 2023
$1.3M
BLR&D Research Career Scientist Award ApplicationIK6BX003610 · VA · OKLAHOMA CITY VA MEDICAL CENTER · PI GREENWOOD-VAN MEERVELD, BEVERLEY · 2017 to 2021
–
BLRD VA I01 BX002188BLRD VA IK6 BX003610NIDDK NIH HHS R01 DK119125
6 · The paper itself

Abstract

backgroundWe previously reported that early life stress (ELS) dysregulated glucocorticoid receptor (GR) and corticotrophin-releasing hormone (CRH) expression in the central nucleus of the amygdala (CeA). Epigenetic modifications serve as memories of adverse events that occurred during early life. Therefore, we hypothesized that epigenetic mechanisms alter GR and CRH expression in the CeA and underlie chronic visceral pain after ELS.

methodsNeonatal rats were exposed to unpredictable, predictable ELS, or odor only (no stress control) from postnatal days 8 to 12. In adulthood, visceral sensitivity was assessed or the CeA was isolated for Western blot or ChiP-qPCR to study histone modifications at the GR and CRH promoters. Female adult rats underwent stereotaxic implantation of indwelling cannulas for microinjections of garcinol (HAT inhibitor) into the CeA. After 7 days of microinjections, visceral sensitivity was assessed or the CeA was isolated for ChIP-qPCR assays.

resultsUnpredictable ELS increased visceral sensitivity in adult female rats, but not in male counterparts. ELS increased histone 3 lysine 9 (H3K9) acetylation in the CeA and H3K9 acetylation levels at the GR promoter in the CeA of adult female rats. After unpredictable ELS, H3K9 acetylation was increased and GR binding was decreased at the CRH promoter. Administration of garcinol in the CeA of adult females, that underwent unpredictable ELS, normalized H3K9 acetylation and restored GR binding at the CRH promoter.

conclusionDysregulated histone acetylation and GR binding at the CRH promoter in the CeA are an important mechanism for "memorizing" ELS events mediating visceral pain in adulthood.

Indexed as

AnimalsAnimals, NewbornCentral Amygdaloid NucleusCorticotropin-Releasing HormoneDNA MethylationFemaleMaleRatsRats, Long-EvansReceptors, GlucocorticoidSex CharacteristicsStress, PsychologicalVisceral PainCorticotropin-Releasing HormoneReceptors, Glucocorticoidearly life stresshistone acetylationsexual dimorphic mechanismvisceral hypersensitivity

Identifiers

PMID31667916
PMCPMC8628638
OpenAlexW2983293423

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.