Evidence map›Paper›PMID 23369546›Full record

ArticleNeurobiology of aging2013

Multiple clinically relevant hormone therapy regimens fail to improve cognitive function in aged ovariectomized rhesus monkeys.

Mark G Baxter, Mary T Roberts, Nancy A Gee, Bill L Lasley, John H Morrison, Peter R Rapp

Abstract read
In one paragraph

Article in Neurobiology of aging, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. The Role of Estrogen in Brain and Cognitive Aging.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2019
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Effect of Ovarian Hormone Therapy on Cognition in the Aged Female Rhesus Macaque.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. 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

6 authors at 4 institutions in 1 country.

Mark G BaxterDepartment of Neuroscience and Friedman Brain Institute, Mount Sinai School of Medicine, New York, NY 10029, USA.
Mary T Roberts
Nancy A Gee
Bill L Lasley
John H Morrison
Peter R Rapp
University of California, Davis · USAllen Institute for Brain Science · USIcahn School of Medicine at Mount Sinai · USNational Institute on Aging · US

Funding

National Institute on Aging (NIA) ColonyP51OD011107 · OD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Simon J. Atkinson · 2012 to 2026
$191.5M
ZONA PELLUCIDA PEPTIDES AS IMMUNOCONTRACEPTIVE ANTIGENSP51RR000169 · NCRR · UNIVERSITY OF CALIFORNIA DAVIS · PI HYDE, DALLAS MELVIN · 1985 to 2011
$126.2M
The Nonhuman Primate CoreP01AG016765 · NIA · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI MORRISON, JOHN H. · 1999 to 2016
$26.1M
Estrogen and the Aging Primate BrainZIAAG000351 · NIA · NATIONAL INSTITUTE ON AGING · PI RAPP, PETER R · 2009 to 2019
$2.9M
Intramural NIH HHSNCRR NIH HHS P51 RR000169NCRR NIH HHS P51-RR000169.NIA NIH HHS P01 AG016765NIA NIH HHS P01-AG016765NIH HHS P51 OD011107
6 · The paper itself

Abstract

Preclinical studies in aged, surgically-menopausal rhesus monkeys have revealed powerful benefits of intermittent estrogen injections on prefrontal cortex-dependent working memory, together with corresponding effects on dendritic spine morphology in the prefrontal cortex. This contrasts with the inconsistent effects of hormone therapy (HT) reported in clinical studies in women. Factors contributing to this discrepancy could include differences in the formulation and sequence of HT regimens, resulting in different neurobiological outcomes. The current study evaluated, in aging surgically menopausal rhesus monkeys, the cognitive effects of 4 HT regimens modeled directly on human clinical practice, including continuous estrogen treatment opposed by progesterone. None of the regimens tested produced any cognitive effect, despite yielding physiologically relevant serum hormone levels, as intended. These findings have implications for the design of regimens that might optimize the benefits of hormone treatment for healthy aging, and suggest that common HT protocols used by women may fail to result in substantial cognitive benefit, at least via direct effects on the prefrontal cortex.

Indexed as

OvariectomyAgingAnimalsCognition DisordersDrug ImplantsEstradiolEstrogen Replacement TherapyFemaleHumansMacaca mulattaDrug ImplantsEstradiol

Identifiers

PMID23369546
PMCPMC3622837
OpenAlexW1986278768

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.