Evidence map›Paper›PMID 32924075›Full record

ArticleExperimental brain research2020

Effects of estrogen and progesterone on the neurogenic inflammatory neuropeptides: implications for gender differences in migraine.

Ayhan Cetinkaya, Erkan Kilinc, Cagri Camsari, Muhammed Nur Ogun

Abstract read
PubMed Publisher
In one paragraph

Article in Experimental brain research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. The Neurology of Menopause.Current neurology and neuroscience reports · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Migraine in men.The journal of headache and pain · 2025
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
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

4 authors at 1 institution in 1 country.

Ayhan CetinkayaDepartment of Physiology, Medical Faculty, Bolu Abant Izzet Baysal University, Bolu, Turkey.
Erkan KilincDepartment of Physiology, Medical Faculty, Bolu Abant Izzet Baysal University, Bolu, Turkey. e_kilinc_27@hotmail.com.ORCID http://orcid.org/0000-0001-9261-2634
Cagri CamsariInnovative Food Technologies Development Application Research Center, Bolu Abant Izzet Baysal University, Bolu, Turkey.
Muhammed Nur OgunDepartment of Neurology, Bolu Abant Izzet Baysal University, Bolu, Turkey.
Bolu Abant İzzet Baysal University · TR

Funding

Bolu Abant Izzet Baysal University Scientific Research Fund 2017.08.02.1258
6 · The paper itself

Abstract

Neurogenic inflammation including calcitonin gene-related peptide (CGRP) and substance-P (SP) release plays a pivotal role in migraine pathogenesis. Prevalence of migraine is ~ 3 folds higher in women than in men, but its underlying mechanisms remained unclear. We investigated the effects of female sex hormones estrogen and progesterone on CGRP and SP in in-vivo and ex-vivo in rats of both sexes. For in-vivo experiments, male, female and ovariectomized rats were separated into four groups (n = 7) as control, estrogen, progesterone and estrogen + progesterone, respectively. Groups received daily intraperitoneal vehicle, 17β-estradiol, progesterone and 17β-estradiol + progesterone for 5 days, respectively. For ex-vivo experiments in both sexes, isolated trigeminal ganglia and hemiskull preparations were divided into four groups (n = 6 or 8), respectively, as in-vivo groups, and administered the same test substances. CGRP and SP contents in plasma and superfusates were determined using ELISA. In in-vivo experiments, 17β-estradiol decreased CGRP levels in males and SP levels in ovariectomized rats. Progesterone increased both CGRP and SP levels in females. Their combination decreased both CGRP and SP levels in males, and only SP levels in ovariectomized rats. In ex-vivo experiments, 17β-estradiol reduced CGRP release in males and SP release in females in trigeminal ganglia. While progesterone increased CGRP release in trigeminal ganglia, it reduced SP release from hemiskulls in both sexes. Their combination restored progesterone-mediated changes in neuropeptides releases in both trigeminal ganglia and hemiskulls in both sexes. Estrogen alleviates neurogenic inflammation through modulation of CGRP and SP release. Progesterone has dual effects on these neuropeptides in different sites associated with migraine pain.

Indexed as

Migraine DisordersProgesteroneAnimalsEstrogensFemaleMaleNeurogenic InflammationRatsSex CharacteristicsEstrogensProgesteroneCalcitonin gene-related peptideGender differenceMigraineNeurogenic inflammationSubstance-PTrigeminovascular system

Identifiers

PMID32924075
OpenAlexW3086515099

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.