Evidence map›Paper›PMID 28938398›Full record

ArticleEndocrinology2017

Long-Term Recordings of Arcuate Nucleus Kisspeptin Neurons Reveal Patterned Activity That Is Modulated by Gonadal Steroids in Male Mice.

Charlotte Vanacker, Manuel Ricu Moya, R Anthony DeFazio, Michael L Johnson, Suzanne M Moenter

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.8field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Targeting KNDy neurons to control GnRH pulses.Current opinion in pharmacology · 2022
    Review
  7. Review
  8. Review
  9. Article
  10. Sexually Dimorphic Neurosteroid Synthesis Regulates Neuronal Activity in the Murine Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. KNDy Cells Revisited.Endocrinology · 2018
    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

5 authors at 2 institutions in 1 country.

Charlotte VanackerDepartment of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan 48109.
Manuel Ricu MoyaDepartment of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan 48109.
R Anthony DeFazioDepartment of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan 48109.
Michael L JohnsonDepartment of Pharmacology, University of Virginia, Charlottesville, Virginia 22908.
Suzanne M MoenterDepartment of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan 48109.
University of Michigan–Ann Arbor · USUniversity of Virginia · US

Funding

Cellular and molecular bases for rhythmic GnRH releaseR37HD034860 · NICHD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Suzanne M MOENTER · 2017 to 2026
$5.4M
Cellular and Molecular bases for rhythmic GnRH releaseR01HD034860 · NICHD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI MOENTER, SUZANNE M · 2002 to 2016
$4.8M
NICHD NIH HHS R01 HD034860NICHD NIH HHS R37 HD034860
6 · The paper itself

Abstract

Pulsatile release of gonadotropin-releasing hormone (GnRH) is key to fertility. Pulse frequency is modulated by gonadal steroids and likely arises subsequent to coordination of GnRH neuron firing activity. The source of rhythm generation and the site of steroid feedback remain critical unanswered questions. Arcuate neurons that synthesize kisspeptin, neurokinin B, and dynorphin (KNDy) may be involved in both of these processes. We tested the hypotheses that action potential firing in KNDy neurons is episodic and that gonadal steroids regulate this pattern. Targeted extracellular recordings were made of green fluorescent protein-identified KNDy neurons in brain slices from adult male mice that were intact, castrated, or castrated and treated with estradiol or dihydrotestosterone (DHT). KNDy neurons exhibited marked peaks and nadirs in action potential firing activity during recordings lasting 1 to 3.5 hours. Peaks, identified by Cluster analysis, occurred more frequently in castrated than intact mice, and either estradiol or DHT in vivo or blocking neurokinin type 3 receptor in vitro restored peak frequency to intact levels. The frequency of peaks in firing rate and estradiol regulation of this frequency is similar to that observed for GnRH neurons, whereas DHT suppressed firing in KNDy but not GnRH neurons. We further examined the patterning of action potentials to identify bursts that may be associated with increased neuromodulator release. Burst frequency and duration are increased in castrated compared with intact and steroid-treated mice. The observation that KNDy neurons fire in an episodic manner that is regulated by steroid feedback is consistent with a role for these neurons in GnRH pulse generation and regulation.

Indexed as

OrchiectomyAction PotentialsAndrogensAnimalsArcuate Nucleus of HypothalamusBrainCluster AnalysisDihydrotestosteroneDynorphinsEstradiolEstrogensGonadotropin-Releasing HormoneGreen Fluorescent ProteinsKisspeptinsMaleMiceAndrogensDihydrotestosteroneDynorphinsEstradiolEstrogensGonadotropin-Releasing HormoneGreen Fluorescent ProteinsKiss1 protein, mouseKisspeptinsNeurokinin BReceptors, Neurokinin-3

Identifiers

PMID28938398
PMCPMC5659697
OpenAlexW2741675939

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.