Evidence map›Paper›PMID 32129462›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2020

Metformin Reduces Aging-Related Leaky Gut and Improves Cognitive Function by Beneficially Modulating Gut Microbiome/Goblet Cell/Mucin Axis.

Shokouh Ahmadi, Atefeh Razazan, Ravinder Nagpal, Shalini Jain, Bo Wang, Sidharth P Mishra, Shaohua Wang, Jamie Justice, Jingzhong Ding, Donald A McClain and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 1 pooled it
7.3field-weighted citation impact, top 2% 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

102 citing papers in PubMed, 1 synthesis or guideline pooled it, 140 citations in OpenAlex.

  1. Pooled it
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  15. Age-Related Cognitive Decline and Dementia: Interface of Microbiome-Immune-Neuronal Interactions.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Review
  16. Article
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  19. Article
  20. The Gut Microbiota-Related Antihyperglycemic Effect of Metformin.Pharmaceuticals (Basel, Switzerland) · 2025
    Review

42 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

13 authors at 2 institutions in 1 country.

Shokouh AhmadiDepartment of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Atefeh RazazanDepartment of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Ravinder NagpalDepartment of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Shalini JainDepartment of Endocrinology and Metabolism, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Bo WangDepartment of Chemistry, North Carolina A&T State University, Greensboro.
Sidharth P MishraDepartment of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Shaohua WangDepartment of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Jamie JusticeDepartment of Internal Medicine - Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Jingzhong DingDepartment of Internal Medicine - Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Donald A McClainDepartment of Endocrinology and Metabolism, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Stephen B KritchevskyDepartment of Internal Medicine - Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Dalane KitzmanDepartment of Internal Medicine - Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Hariom YadavDepartment of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Wake Forest University · USNorth Carolina Agricultural and Technical State University · US

Funding

Study of Muscle, Mobility and Aging: SOMMA2R01AG059416 · NIA · CALIFORNIA PACIFIC MED CTR RES INSTITUTE · PI STEVEN RON CUMMINGS, Peggy Mannen Cawthon · 2018 to 2026
$70.3M
Wake Forest Claude D. Pepper OAIC - RenewalP30AG021332 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI LEON LENCHIK · 2002 to 2026
$36.4M
Wake Forest Clinical and Translational Science AwardUL1TR001420 · NCATS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI ARD, JAMY D, FOLEY, KRISTIE L · 2015 to 2023
$32.3M
Research Centers Collaborative Network RenewalU24AG058556 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KRITCHEVSKY, STEPHEN B., LEDERMAN, STEPHANIE · 2018 to 2025
$7.5M
REHAB-HF: A Trial of Rehabilitation Therapy in Older Acute Heart Failure PatientsR01AG045551 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KITZMAN, DALANE W · 2014 to 2018
$6.8M
Pepper OAIC Coordinating CenterU24AG059624 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI DALANE W KITZMAN · 2018 to 2026
$6.0M
Wake Forest Clinical and Translational Science AwardKL2TR001421 · NCATS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MILLER, DAVID P · 2015 to 2023
$5.8M
Exercise Intolerance in Older HFPEF PatientsR01AG018915 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KITZMAN, DALANE W · 2001 to 2019
$5.2M
Combining assessment of cognition, eye movement, and gait in naturalistic settings to differentiate subclinical Alzheimer's pathology.R01AG052419 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KRITCHEVSKY, STEPHEN B., LAURIENTI, PAUL · 2017 to 2022
$4.2M
Cell-specific genomic features of Alzheimer's disease progressionRF1AG054474 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI DING, JINGZHONG, LIU, YONGMEI · 2017 to 2019
$4.1M
IRON AND METABOLISM: ALTERED FUEL OXIDATION AND MITOCHONDRIAL DYSFUNCTIONR01DK081842 · NIDDK · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MCCLAIN, DONALD A. · 2009 to 2017
$3.9M
Aging Biomarkers: Integrating Omic Profiles with Mechanistic MeasuresU01AG060897 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI DELBONO, OSVALDO, DING, JINGZHONG · 2018 to 2022
$3.2M
BLRD VA I01 BX005109NCATS NIH HHS KL2 TR001421NCATS NIH HHS UL1 TR001420NIA NIH HHS K01 AG059837NIA NIH HHS P30 AG021332NIA NIH HHS R01 AG018915NIA NIH HHS R01 AG045551NIA NIH HHS R01 AG052419NIA NIH HHS R01 AG059416NIA NIH HHS RF1 AG054474NIA NIH HHS U01 AG060897NIA NIH HHS U13 AG040938NIA NIH HHS U24 AG058556NIA NIH HHS U24 AG059624NIDDK NIH HHS R01 DK081842NIDDK NIH HHS R01 DK103531
6 · The paper itself

Abstract

Aging-related illnesses are increasing and effective strategies to prevent and/or treat them are lacking. This is because of a poor understanding of therapeutic targets. Low-grade inflammation is often higher in older adults and remains a key risk factor of aging-related morbidities and mortalities. Emerging evidence indicates that abnormal (dysbiotic) gut microbiome and dysfunctional gut permeability (leaky gut) are linked with increased inflammation in older adults. However, currently available drugs do not treat aging-related microbiome dysbiosis and leaky gut, and little is known about the cellular and molecular processes that can be targeted to reduce leaky gut in older adults. Here, we demonstrated that metformin, a safe Food and Drug Administration-approved antidiabetic drug, decreased leaky gut and inflammation in high-fat diet-fed older obese mice, by beneficially modulating the gut microbiota. In addition, metformin increased goblet cell mass and mucin production in the obese older gut, thereby decreasing leaky gut and inflammation. Mechanistically, metformin increased the goblet cell differentiation markers by suppressing Wnt signaling. Our results suggest that metformin can be used as a regimen to prevent and treat aging-related leaky gut and inflammation, especially in obese individuals and people with western-style high-fat dietary lifestyle, by beneficially modulating gut microbiome/goblet cell/mucin biology.

Indexed as

AgingAnimalsCognitionDiet, High-FatDisease Models, AnimalDysbiosisGastrointestinal MicrobiomeGoblet CellsHypoglycemic AgentsInflammationMetforminMiceMucinsObesityWnt Signaling PathwayHypoglycemic AgentsMetforminMucinsGut permeabilityInflammationMicrobiotaMucusWnt signaling

Identifiers

PMID32129462
PMCPMC7302182
OpenAlexW3009637711

What Socratic holds

Texttitle and abstract
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 Socratic graph.