Evidence map›Paper›PMID 19423763›Full record

ArticleEndocrinology2009

The excitatory peptide kisspeptin restores the luteinizing hormone surge and modulates amino acid neurotransmission in the medial preoptic area of middle-aged rats.

Genevieve Neal-Perry, Diane Lebesgue, Matthew Lederman, Jun Shu, Gail D Zeevalk, Anne M Etgen

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
9.0field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Review
  3. Current Insights in Prolactin Signaling and Ovulatory Function.International journal of molecular sciences · 2024
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
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  11. Article
  12. Article
  13. Article
  14. Gamma-aminobutyric acidReproductive medicine and biology · 2017
    Article
  15. The Role of Kisspeptin in Female Reproduction.International journal of endocrinology and metabolism · 2017
    Review
  16. Article
  17. Article
  18. Article
  19. Article
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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

6 authors at 1 institution in 1 country.

Genevieve Neal-PerryDepartment of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
Diane Lebesgue
Matthew Lederman
Jun Shu
Gail D Zeevalk
Anne M Etgen
Albert Einstein College of Medicine · US

Funding

PROJECT 4 - Antagonistic Actions of Melanocortins and Leptin on Reproductive CompU54HD058155 · NICHD · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI POLLARD, JEFFREY W. · 2009 to 2013
$6.8M
NEUROENDOCRINE BASES OF REPRODUCTIVE BEHAVIORR01HD029856 · NICHD · YESHIVA UNIVERSITY · PI ETGEN, ANNE M · 1993 to 2006
$2.3M
NICHD NIH HHS R01 HD029856NICHD NIH HHS R01 HD29856NICHD NIH HHS U54 HD058155
6 · The paper itself

Abstract

Reproductive success depends on a robust and appropriately timed preovulatory LH surge. The LH surge, in turn, requires ovarian steroid modulation of GnRH neuron activation by the neuropeptide kisspeptin and glutamate and gamma-aminobutyric acid (GABA) neurotransmission in the medial preoptic area (mPOA). Middle-aged females exhibit reduced excitation of GnRH neurons and attenuated LH surges under estrogen-positive feedback conditions, in part, due to increased GABA and decreased glutamate neurotransmission in the mPOA. This study tested the hypothesis that altered kisspeptin regulation by ovarian steroids plays a role in age-related LH surge dysfunction. We demonstrate that middle-aged rats exhibiting delayed and attenuated LH surges have reduced levels of Kiss1 mRNA in the anterior hypothalamus under estrogen-positive feedback conditions. Kisspeptin application directly into the mPOA rescues total LH release and the LH surge amplitude in middle-aged rats and increases glutamate and decreases GABA release to levels seen in the mPOA of young females. Moreover, the N-methyl-D-aspartate receptor antagonist MK801 blocks kisspeptin reinstatement of the LH surge. These observations suggest that age-related LH surge dysfunction results, in part, from reduced kisspeptin drive under estrogen-positive feedback conditions and that kisspeptin regulates GnRH/LH release, in part, through modulation of mPOA glutamate and GABA release.

Indexed as

Age FactorsAmino AcidsAnimalsDizocilpine MaleateFemalegamma-Aminobutyric AcidGlutamic AcidKisspeptinsLuteinizing HormoneNeuroprotective AgentsPreoptic AreaProgesteroneProgestinsProteinsRatsRats, Sprague-DawleyAmino AcidsDizocilpine Maleategamma-Aminobutyric AcidGlutamic AcidKiss1 protein, ratKisspeptinsLuteinizing HormoneNeuroprotective AgentsProgesteroneProgestinsProteinsReceptors, N-Methyl-D-Aspartate

Identifiers

PMID19423763
PMCPMC2717872
OpenAlexW2133600045

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.