Evidence map›Paper›PMID 16885226›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2006

Prolactin modulates TRPV1 in female rat trigeminal sensory neurons.

Anibal Diogenes, Amol M Patwardhan, Nathaniel A Jeske, Nikita B Ruparel, Vincent Goffin, Armen N Akopian, Kenneth M Hargreaves

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 141 citations in OpenAlex.

  1. Prolactin and pain of endometriosis.Pharmacology & therapeutics · 2023
    Pooled it
  2. The therapeutic pipeline in migraine: What does the future hold?Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  3. Article
  4. Article
  5. A prolactin-targeting antibody to prevent stress-induced peripheral nociceptor sensitization and female postoperative pain.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Female-selective mechanisms promoting migraine.The journal of headache and pain · 2024
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. A prolactin-dependent sexually dimorphic mechanism of migraine chronification.Cephalalgia : an international journal of headache · 2022
    Article
  18. Article
  19. Article
  20. Sexual dimorphism in functional pain syndromes.Science translational medicine · 2021
    Article

12 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 3 countries.

Anibal DiogenesDepartment of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229-3900, USA.
Amol M Patwardhan
Nathaniel A Jeske
Nikita B Ruparel
Vincent Goffin
Armen N Akopian
Kenneth M Hargreaves
The University of Texas Health Science Center at San Antonio · USAmerican Association of Endodontists · US

Funding

Cannabinoid-Induced Desensitization of TRPV1 ReceptorsF32DE016500 · NIDCR · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI JESKE, NATHANIEL AARON · 2005 to 2006
$80k
NIDCR NIH HHS F32 DE016500
6 · The paper itself

Abstract

Sex dependency in pain perception is well documented and is thought to be attributable to the effect of reproductive hormones on nociceptive processing. In the present study, we evaluated whether estradiol alters gene transcription in the trigeminal ganglia (TG) of ovariectomized rats (OVX). These experiments demonstrated a dramatic (40-fold) upregulation of prolactin (PRL) expression in TG by 17-beta-estradiol (E2). PRL expression was restricted to TG neurons and was highly overlapped with transient potential receptor vanilloid type 1 (TRPV1) (approximately 90%) in TG. Additionally, PRL is released from neurons during stimulation. Both forms of PRL receptors (PRLRs), short and long, were also present in TG neurons. Moreover, expression of the long PRLRs was under control of estradiol. We next evaluated the novel hypothesis that PRL acts as a neuromodulator of sensory neurons. PRL pretreatment significantly enhanced capsaicin-evoked inward currents, calcium influx, and immunoreactive calcitonin gene-related peptide release from cultured TG neurons. This PRL modulation of capsaicin responses was abolished by withdrawal of E2 from TG cultures. Biochemical analysis demonstrated that PRL increased (>50%) phosphorylation levels of TRPV1 in TG. In a behavioral test, PRL pretreatment significantly potentiated capsaicin-evoked nocifensive behavior in female rats at proestrous and in OVX rats after E2 treatment. The in vivo potentiating effect of PRL on capsaicin responses was also dependent on E2. Collectively, these data demonstrate that PRL is a novel modulator of sensory neurons tightly regulated by E2. These findings are consistent with the hypothesis that PRL could contribute to the development of certain pain disorders, possibly including those modulated by estrogen.

Indexed as

AnimalsDose-Response Relationship, DrugEstradiolFemaleGene Expression RegulationNerve Tissue ProteinsNeurons, AfferentOvariectomyPain ThresholdProlactinRatsRats, Sprague-DawleySex FactorsTrigeminal GanglionTRPV Cation ChannelsEstradiolNerve Tissue ProteinsProlactinTrpv1 protein, ratTRPV Cation Channels

Identifiers

PMID16885226
PMCPMC6673790
OpenAlexW2034407873

What OpenQuestion holds

Textmetadata
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.