Evidence map›Paper›PMID 30925299›Full record

ArticleNeurobiology of aging2019

CNS luteinizing hormone receptor activation rescues ovariectomy-related loss of spatial memory and neuronal plasticity.

Jeffrey A Blair, Sabina Bhatta, Gemma Casadesus

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Effects of diet and ovariectomy onBrain communications · 2025
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Protective effects ofInternational journal of molecular medicine · 2021
    Article
  9. Article
  10. Article
  11. Luteinizing hormone and the aging brain.Vitamins and hormones · 2021
    Review
  12. 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

3 authors at 1 institution in 1 country.

Jeffrey A BlairDepartment of Biological Sciences, Kent State University, Kent, OH, USA.
Sabina BhattaDepartment of Biological Sciences, Kent State University, Kent, OH, USA.
Gemma CasadesusDepartment of Biological Sciences, Kent State University, Kent, OH, USA. Electronic address: gcasades@kent.edu.
Kent State University · US

Funding

Testosterone-GnRH Frequency and the Evolution of PCOS in AdolescenceP50HD028934 · NICHD · UNIVERSITY OF VIRGINIA · PI HAISENLEDER, DANIEL J. · 2014 to 2018
$8.6M
Mechanisms of Gonadotropin Action on Cognition and Neuronal Remodeling in Aging and Alzheimer's DiseaseRF1AG054654 · NIA · UNIVERSITY OF FLORIDA · PI CASADESUS, GEMMA · 2017 to 2017
$1.9M
NIA NIH HHS RF1 AG054654NICHD NIH HHS P50 HD028934
6 · The paper itself

Abstract

Ovariectomy (OVX), a menopause model, leads to cognition and neuronal plasticity deficits that are rescued by estrogen administration or downregulation of pituitary luteinizing hormone (LH). LH is present in the brain. However, whether LH levels differ across brain regions, change across reproductive stages, or whether brain-specific LHR signaling play a role in OVX-related cognitive and neuroplasticity losses is completely unknown. To address this, we measured brain LH in cycling and OVX C57Bl/6 across brain regions and determined whether OVX-related functional and plasticity deficits could be rescued by intracerebroventricular administration of the LHR agonist (hCG). Here, we show that while pituitary LH is increased in OVX, brain LH is decreased, primarily in spatial memory and navigation areas. Furthermore, intracerebroventricular hCG delivery after OVX rescued dendritic spine density and spatial memory. In vitro, we show that hCG increased neurite outgrowth in primary hippocampal neurons in a receptor-specific manner. Taken together, our data suggest that loss of brain LH signaling is involved in cognitive and plasticity losses associated with OVX and loss of ovarian hormones.

Indexed as

AnimalsBrainCells, CulturedChorionic GonadotropinDisease Models, AnimalFemaleHippocampusLuteinizing HormoneMemory DisordersMenopauseMice, Inbred C57BLNeuronal OutgrowthNeuronal PlasticityOvariectomyPituitary GlandReceptors, LHChorionic GonadotropinLuteinizing HormoneReceptors, LHCognitionLuteinizing hormoneLuteinizing hormone receptorMenopauseNeuronal plasticityOvariectomy

Identifiers

PMID30925299
PMCPMC6545150
OpenAlexW2914059684

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.