Evidence map›Paper›PMID 24813636›Full record

ArticleNeurobiology of aging2014

Estradiol replacement extends the window of opportunity for hippocampal function.

Lindsey C Vedder, Teruko M Bredemann, Lori L McMahon

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

35 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Predictive factors for postoperative delirium in thoracic surgery.General thoracic and cardiovascular surgery · 2024
    Article
  5. Article
  6. Sex as a Determinant of Age-Related Changes in the Brain.International journal of molecular sciences · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Oestradiol as a neuromodulator of learning and memory.Nature reviews. Neuroscience · 2020
    Review
  15. Article
  16. Article
  17. Vitamin DBMC medical genetics · 2019
    Article
  18. Article
  19. Review
  20. 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.

Lindsey C VedderDepartment of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA.
Teruko M BredemannDepartment of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA.
Lori L McMahonDepartment of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA. Electronic address: mcmahon@uab.edu.
University of Alabama at Birmingham · US

Funding

Alabama Neuroscience Blueprint Core CenterP30NS057098 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SWEATT, JOHN DAVID · 2006 to 2010
$9.5M
UAB Neuroscience Core CenterP30NS047466 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI STANDAERT, DAVID G. · 2005 to 2019
$8.5M
Estrogen and hippocampal plasticityR01MH082304 · NIMH · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI MCMAHON, LORI LYNN · 2008 to 2012
$1.6M
NIMH NIH HHS MH-082304NIMH NIH HHS R01 MH082304NINDS NIH HHS P30 NS047466NINDS NIH HHS P30 NS057098
6 · The paper itself

Abstract

We previously reported that treating aged female rats, ovariectomized (OVX) as young adults, with acute proestrous levels of 17β estradiol (E2) increases CA1 spine density, NMDAR to AMPAR ratio, GluN2B-mediated NMDAR current, and long-term potentiation at CA3-CA1 synapses if administered by 15, but not at 19-month post-OVX, defining the critical window of opportunity. Importantly, when rats are aged with ovaries intact until OVX at 20 months, hippocampal E2 responsiveness is maintained, indicating the deficit at 19-month post-OVX is a consequence of the duration of hormone deprivation and not chronological age. Here, we find the beneficial effect of E2 on novel object recognition in OVX rats was constrained by the same critical window. Furthermore, chronic low-level E2 replacement, commenced by 11-month post-OVX using subcutaneous capsules removed 2 weeks before acute proestrous E2 treatment, prevents the loss of hippocampal responsiveness at 19-month post-OVX. These data define the dynamic nature of the critical window showing that chronic replacement with physiological E2 levels within a certain period post-OVX can lengthen the window.

Indexed as

Estrogen Replacement TherapyAge FactorsAgingAnimalsEstradiolFemaleHippocampusLong-Term PotentiationOvariectomyRats, Sprague-DawleyReceptors, AMPAReceptors, N-Methyl-D-AspartateSynapsesSynaptic TransmissionTime FactorsEstradiolNR2B NMDA receptorReceptors, AMPAReceptors, N-Methyl-D-Aspartate17ß-estradiolE2GluN2BLearning and memoryLong term potentiationNMDANR2BPlasticity

Identifiers

PMID24813636
PMCPMC4090327
OpenAlexW1986766541

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.