Evidence map›Paper›PMID 33937443›Full record

ArticleBone reports2021

Alterations to the gut microbiome impair bone tissue strength in aged mice.

Macy Castaneda, Kelsey M Smith, Jacob C Nixon, Christopher J Hernandez, Sheldon Rowan

Abstract read
In one paragraph

Article in Bone reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Gut microbiome and bone health: update on mechanisms, clinical correlations, and possible treatment strategies.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Pooled it
  2. Review
  3. Aging Exacerbates Binge Ethanol-Mediated Bone Toxicity in Mice.Alcohol, clinical & experimental research · 2026
    Article
  4. Bone Fragility: Time to Address the Matrix.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. The Human Gut Microbiota: A Key Mediator of Osteoporosis and Osteogenesis.International journal of molecular sciences · 2021
    Review
  17. Musculoskeletal microbiology: The utility of the microbiome in orthopedics.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2021
    Review
  18. 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

5 authors.

Macy CastanedaSibley School of Mechanical and Aerospace Engineering, Cornell University, United States of America.
Kelsey M SmithJM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, United States of America.
Jacob C NixonSibley School of Mechanical and Aerospace Engineering, Cornell University, United States of America.
Christopher J HernandezSibley School of Mechanical and Aerospace Engineering, Cornell University, United States of America.
Sheldon RowanJM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, United States of America.

Funding

The Microbiome and Bone StrengthR01AG067997 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI HERNANDEZ, CHRISTOPHER JOHN · 2021 to 2025
$3.2M
Research Training Program in Nutrition, Obesity and Metabolic DisordersT32DK124170 · NIDDK · TUFTS UNIVERSITY BOSTON · PI GREENBERG, ANDREW S · 2020 to 2024
$870k
Acquisition of a Nano Computed Tomography Instrument for shared Cornell Imaging fS10OD012287 · OD · CORNELL UNIVERSITY · PI HERNANDEZ, CHRISTOPHER JOHN · 2013 to 2013
$755k
In Vivo Optical and MicroCT Imaging Instruments for the Cornell BRC Imaging FacilityS10OD025049 · OD · CORNELL UNIVERSITY · PI WILLIAMS, REBECCA M · 2018 to 2018
$750k
The Microbiome and Bone StrengthR56AG067997 · NIA · CORNELL UNIVERSITY · PI HERNANDEZ, CHRISTOPHER JOHN · 2020 to 2020
$597k
The microbiome as a risk factor for periprosthetic joint infectionR21AR071534 · NIAMS · HOSPITAL FOR SPECIAL SURGERY · PI BOSTROM, MATHIAS P., HERNANDEZ, CHRISTOPHER JOHN · 2017 to 2018
$431k
The Role of Bone Resorption in Bone Marrow LesionsR21AR073454 · NIAMS · CORNELL UNIVERSITY · PI HERNANDEZ, CHRISTOPHER JOHN · 2018 to 2019
$407k
Separating Systemic Inflammation From Obesity in Load-Induced OsteoarthritisR21AR068061 · NIAMS · CORNELL UNIVERSITY · PI HERNANDEZ, CHRISTOPHER JOHN · 2015 to 2016
$371k
NIAMS NIH HHS R21 AR068061NIAMS NIH HHS R21 AR071534NIAMS NIH HHS R21 AR073454NIA NIH HHS R01 AG067997NIA NIH HHS R56 AG067997NIDDK NIH HHS T32 DK124170NIH HHS S10 OD012287NIH HHS S10 OD025049
6 · The paper itself

Abstract

Whole bone strength and resistance to fracture are determined by a combination of bone quantity and bone quality - key factors in determining risk for osteoporosis and age-related fractures. Recent preclinical studies have shown that alterations to the gut microbiome can influence bone quantity as well as bone tissue quality. Prior work on the gut microbiome and bone has been limited to young animals, and it is unknown if the gut microbiome can alter bone tissue strength in aged animals. Here we ask if alterations to the constituents of the gut microbiome influence bone strength in older mice (12-24 months of age). Male C57BL/6J mice raised on a standard chow diet until 12 months of age were assigned to one of three diets: high glycemic, low glycemic, or low glycemic diet containing antibiotics (ampicillin and neomycin) to modify the constituents of the gut microbiome. The group fed the low glycemic diet containing antibiotics showed reductions in whole bone strength that could not be explained by geometry, indicating reduced bone tissue strength (

Indexed as

AgingBiomechanicsBone strengthBone tissue propertiesMicrobiome

Identifiers

PMID33937443
PMCPMC8079457

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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.