Evidence map›Paper›PMID 26497249›Full record

ArticleHormones and behavior2016

Luteinizing hormone downregulation but not estrogen replacement improves ovariectomy-associated cognition and spine density loss independently of treatment onset timing.

Jeffrey A Blair, Russell Palm, Jaewon Chang, Henry McGee, Xiongwei Zhu, Xinglong Wang, Gemma Casadesus

Abstract read
In one paragraph

Article in Hormones and behavior, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Jeffrey A BlairSchool of Biomedical Sciences, Kent State University, Kent, OH, United States; Department of Biological Sciences, Kent State University, Kent, OH, United States.
Russell PalmCollege of Medicine and Life Sciences, University of Toledo, Toledo, OH, United States.
Jaewon ChangDepartment of Neurosciences, Case Western Reserve University, Cleveland, OH, United States.
Henry McGeeDepartment of Biological Sciences, Kent State University, Kent, OH, United States.
Xiongwei ZhuDepartment of Pathology, Case Western Reserve University, Cleveland, OH, United States.
Xinglong WangDepartment of Pathology, Case Western Reserve University, Cleveland, OH, United States.
Gemma CasadesusDepartment of Biological Sciences, Kent State University, Kent, OH, United States. Electronic address: gcasades@kent.edu.
Case Western Reserve University · USKent State University · USUniversity of Toledo · US

Funding

PROJECT 3 - Steroid-Metabolic Interactions In the Control of GnRH NeuronsU54HD028934 · NICHD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI MARSHALL, JOHN C · 1998 to 2013
$16.5M
Gonadotropin involvement in cognition and Alzheimer's disease: Therapeutic ImplicationsR01AG032325 · NIA · KENT STATE UNIVERSITY · PI CASADESUS, GEMMA · 2008 to 2012
$1.2M
NIA NIH HHS R01 AG032325NICHD NIH HHS U54 HD028934NICHD NIH HHS U54-HD28934
6 · The paper itself

Abstract

Age-related changes in reproductive hormone levels are a well-known risk factor for the development of cognitive dysfunction and dementia in women. We and others have shown an important contribution of gonadotropins in this process. Lowering serum gonadotropin levels is able to rescue cognitive function in Alzheimer's disease and menopause models, but whether this is time-dependent and the exact mechanism through which gonadotropins regulate cognitive function is unknown. We show that pharmacologically lowering serum levels of luteinizing hormone lead to cognitive improvement immediately after ovariectomy and with a 4month interval after ovariectomy, when the benefits of 17β-estradiol are known to disappear in rodents. Importantly, we show that these improvements are associated with spine density changes at both time points. These findings suggest a role of luteinizing hormone in learning and memory and neuroplasticity processes as well as provide an alternative therapeutic strategy of menopause associated cognitive loss.

Indexed as

AnimalsBone DensityCognitionCognition DisordersDown-RegulationEstradiolEstrogen Replacement TherapyEstrogensFemaleLuteinizing HormoneMice, Inbred C57BLOsteoporosisOvariectomyReproductionSpineTime FactorsEstradiolEstrogensLuteinizing HormoneAgingCognitionEstrogenLuteinizing hormoneMenopauseOvariectomySpine densityTiming

Identifiers

PMID26497249
PMCPMC4718885
OpenAlexW1792810936

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.