Evidence map›Paper›PMID 34663905›Full record

ArticleMolecular psychiatry2021

Appropriate exercise level attenuates gut dysbiosis and valeric acid increase to improve neuroplasticity and cognitive function after surgery in mice.

Zhongmeng Lai, Weiran Shan, Jun Li, Jia Min, Xianzhang Zeng, Zhiyi Zuo

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05601856 (Gut Microbiome and Blood Indices in Patients With AD and Their Spousal Caregivers), which is not on this map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
15.9field-weighted citation impact, top 1% 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.

NCT05601856 unknown statusnot on this mapstarted 2022, after this paper: background citation

Gut Microbiome and Blood Indices in Patients With AD and Their Spousal Caregivers

TypeobservationalSponsorUniversity of VirginiaRan2022 to 2025Enrolled104ConditionsAlzheimer Disease, Gut Biome
3 · Its place in the literature

Who cites it

87 citing papers in PubMed, 142 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Exercise attenuates the hallmarks of aging: Novel perspectives.Journal of sport and health science · 2025
    Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

27 more citing papers are in PubMed but not listed here.

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 2 countries.

Zhongmeng LaiDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, USA.ORCID http://orcid.org/0000-0002-3429-1489
Weiran ShanDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, USA.ORCID http://orcid.org/0000-0003-3152-8249
Jun LiDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, USA.
Jia MinDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, USA.ORCID http://orcid.org/0000-0002-5452-5756
Xianzhang ZengDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, USA.ORCID http://orcid.org/0000-0001-8044-2340
Zhiyi ZuoDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, USA. zz3c@virginia.edu.ORCID http://orcid.org/0000-0002-3542-5047
University of Virginia · USFujian Medical University · CNHarbin Medical University · CNNanchang University · CN

Funding

Role of carboxyl-terminal modulator protein in autophagy and senescence of human induced pluripotent stem cellsRF1AG061047 · NIA · UNIVERSITY OF VIRGINIA · PI WENKER, IAN CHRISTOPHER · 2019 to 2023
$2.4M
Obesity-induced cerebral vascular remodeling and poor brain ischemic toleranceR01NS099118 · NINDS · UNIVERSITY OF VIRGINIA · PI ZUO, ZHIYI · 2018 to 2022
$1.7M
Glial cell line-derived neurotropic factor and postoperative cognitive impairment in young ratsR01HD089999 · NICHD · UNIVERSITY OF VIRGINIA · PI ZUO, ZHIYI · 2017 to 2021
$1.7M
NIA NIH HHS RF1 AG061047NICHD NIH HHS R01 HD089999NINDS NIH HHS R01 NS099118
6 · The paper itself

Abstract

Postoperative cognitive dysfunction (POCD) affects the outcome of millions of patients each year. Aging is a risk factor for POCD. Here, we showed that surgery induced learning and memory dysfunction in adult mice. Transplantation of feces from surgery mice but not from control mice led to learning and memory impairment in non-surgery mice. Low intensity exercise improved learning and memory in surgery mice. Exercise attenuated surgery-induced neuroinflammation and decrease of gut microbiota diversity. These exercise effects were present in non-exercise mice receiving feces from exercise mice. Exercise reduced valeric acid, a gut microbiota product, in the blood. Valeric acid worsened neuroinflammation, learning and memory in exercise mice with surgery. The downstream effects of exercise included attenuating growth factor decrease, maintaining astrocytes in the A2 phenotypical form possibly via decreasing C3 signaling and improving neuroplasticity. Similar to these results from adult mice, exercise attenuated learning and memory impairment in old mice with surgery. Old mice receiving feces from old exercise mice had better learning and memory than those receiving control old mouse feces. Surgery increased blood valeric acid. Valeric acid blocked exercise effects on learning and memory in old surgery mice. Exercise stabilized gut microbiota, reduced neuroinflammation, attenuated growth factor decrease and preserved neuroplasticity in old mice with surgery. These results provide direct evidence that gut microbiota alteration contributes to POCD development. Valeric acid is a mediator for this effect and a potential target for brain health. Low intensity exercise stabilizes gut microbiota in the presence of insult, such as surgery.

Indexed as

Cognitive DysfunctionDysbiosisPhysical Conditioning, AnimalAnimalsCognitionMiceMice, Inbred C57BLNeuronal PlasticityPentanoic AcidsSurgical Procedures, Operativen-pentanoic acidPentanoic Acids

Identifiers

PMID34663905
PMCPMC8873004
OpenAlexW3206369863

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.