Evidence map›Paper›PMID 30268884›Full record

ArticleHormones and behavior2018

Androgens modulate chronic intermittent hypoxia effects on brain and behavior.

Brina Snyder, Phong Duong, Jenny Trieu, Rebecca L Cunningham

Open access · greenAbstract read
In one paragraph

Article in Hormones and behavior, 2018. 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
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

35 citing papers in PubMed, 55 citations in OpenAlex.

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  11. Pregnancy-induced oxidative stress and inflammation are not associated with impaired maternal neuronal activity or memory function.American journal of physiology. Regulatory, integrative and comparative physiology · 2024
    Article
  12. Review
  13. Chronic intermittent hypoxia-induced hypertension: the impact of sex hormones.American journal of physiology. Regulatory, integrative and comparative physiology · 2024
    Review
  14. 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

4 authors at 1 institution in 1 country.

Brina SnyderDepartment of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States of America.
Phong DuongDepartment of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States of America.
Jenny TrieuTexas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX, United States of America.
Rebecca L CunninghamDepartment of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States of America. Electronic address: Rebecca.Cunningham@unthsc.edu.
University of North Texas · US

Funding

Training in the Neurobiology of Aging and Alzheimer's DiseaseT32AG020494 · NIA · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI ROBERT Clinton BARBER, NATHALIE SUMIEN · 2002 to 2026
$6.9M
Interactions between testosterone and oxidative stress in dopamine neuronsR01NS091359 · NINDS · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI CUNNINGHAM, REBECCA L · 2015 to 2019
$1.6M
NIA NIH HHS T32 AG020494NINDS NIH HHS R01 NS091359
6 · The paper itself

Abstract

Sleep apnea is associated with testosterone dysregulation as well as increased risk of developing neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD). A rodent model of the hypoxemic events of sleep apnea, chronic intermittent hypoxia (CIH), has been previously documented to impair cognitive function and elevate oxidative stress in male rats, while simultaneously decreasing testosterone. Therefore, androgens may modulate neuronal function under CIH. To investigate the role of androgens during CIH, male rats were assigned to one of four hormone groups: 1) gonadally intact, 2) gonadectomized (GDX), 3) GDX + testosterone (T) supplemented, or 4) GDX + dihydrotestosterone (DHT) supplemented. Each group was exposed to either normal room air or CIH exposure for one week, followed by memory and motor task assessments. Brain regions associated with AD and PD (entorhinal cortex, dorsal hippocampus, and substantia nigra) were examined for oxidative stress and inflammatory markers, key characteristics of AD and PD. Gonadally intact rats exhibited elevated oxidative stress due to CIH, but no significant memory and motor impairments. GDX increased memory impairments, regardless of CIH exposure. T preserved memory function and prevented detrimental CIH-induced changes. In contrast, DHT was not protective, as evidenced by exacerbated oxidative stress under CIH. Further, CIH induced significant spatial memory impairment in rats administered DHT. These results indicate androgens can have both neuroprotective and detrimental effects under CIH, which may have clinical relevance for men with untreated sleep apnea.

Indexed as

AndrogensAnimalsBehavior, AnimalBrainChronic DiseaseHypoxiaMaleMemory DisordersOxidative StressPeriodicityRatsRats, Long-EvansSleep Apnea SyndromesSpatial MemoryTestosteroneAndrogensTestosteroneAlzheimer's diseaseAstrocytesDihydrotestosteroneEntorhinal cortexHippocampusNeurodegenerationOxidative stressParkinson's diseaseSubstantia nigraTestosterone

Identifiers

PMID30268884
PMCPMC6486829
OpenAlexW2895517039

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.