Cited by 1,371Gut microbiota and healthOral microbiology and periodontitis researchNutritional Studies and Diet

Symptomatic atherosclerosis is associated with an altered gut metagenome

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Karlsson, Fredrik H., Fåk, Frida, Nookaew, Intawat, Tremaroli, Valentina, Fagerberg, Björn, Petranovic, Dina, Bäckhed, Fredrik, Nielsen, Jens·2012·Nature Communications

Abstract

Recent findings have implicated the gut microbiota as a contributor of metabolic diseases through the modulation of host metabolism and inflammation. Atherosclerosis is associated with lipid accumulation and inflammation in the arterial wall, and bacteria have been suggested as a causative agent of this disease. Here we use shotgun sequencing of the gut metagenome to demonstrate that the genus Collinsella was enriched in patients with symptomatic atherosclerosis, defined as stenotic atherosclerotic plaques in the carotid artery leading to cerebrovascular events, whereas Roseburia and Eubacterium were enriched in healthy controls. Further characterization of the functional capacity of the metagenomes revealed that patient gut metagenomes were enriched in genes encoding peptidoglycan synthesis and depleted in phytoene dehydrogenase; patients also had reduced serum levels of β-carotene. Our findings suggest that the gut metagenome is associated with the inflammatory status of the host and patients with symptomatic atherosclerosis harbor characteristic changes in the gut metagenome. The gut microbiota has emerged as an environmental factor that can influence the development of obesity and diabetes. Here, Karlsson et al. report compositional and functional alterations of the gut metagenome in patients with symptomatic atherosclerosis.

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  • Short chain fatty acids are produced by microbiota from dietary fibers, affect host body energy homeostasis, and are protective against metabolic syndrome, type 2 diabetes mellitus, and atherosclerosis.

    “Short chain fatty acids are produced by microbiota from dietary fibers, effect host body energy homeostasis, and are protective against metabolic syndrome, type 2 diabetes mellitus, and atherosclerosis.15,45–47”
  • Reanalysis of metagenomes from Karlsson and colleagues indicated increased abundances of bacteria exhibiting the potential to produce TMA by about a factor of 2 in symptomatic atherosclerosis patients (n = 12) compared to healthy controls (n = 13), with median values of 0.39 and 0.11% in patients versus 0.22 and 0% in controls for cutC and cntA, respectively.

    “Our results indicated increased abundances of bacteria exhibiting the potential to produce TMA (by about a factor of 2) in the patient group where the abundances of key genes of both pathways were elevated (median values of 0.39 and 0.11% (patient group) versus 0.22 and 0% (controls) for cutC and cntA, respectively, as a percentage of bacteria calculated to exhibit the genes) (Additional file 8).”
  • Reanalysis of the dataset provided by Karlsson and colleagues indicated elevated abundances of potential TMA producers in atherosclerosis patients.

    “Reanalysis of the dataset provided by Karlsson and colleagues [12] indicated elevated abundances of potential TMA producers in atherosclerosis patients”
  • Symptomatic atherosclerosis is associated with an altered gut microbiome.

    “a metagenomic study suggested that symptomatic atherosclerosis was associated with an altered gut microbiome.8”
  • Individuals classified as enterotype 3, characterized by low levels of Bacteroides, have a higher incidence of symptomatic atherosclerosis.

    “Individuals classified as enterotype 3, which is characterized by low levels of Bacteroides, 8 have a higher incidence of symptomatic atherosclerosis.1,9”

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Authors
Karlsson, F. H., Fåk, F., Nookaew, I., Tremaroli, V., Fagerberg, B., Petranovic, D., Bäckhed, F., & Nielsen, J.
Affiliations
  • Chalmers University of Technology (SE)
  • University of Gothenburg (SE)
Corresponding author
  • Bäckhed, Fredrik
  • Nielsen, Jens
Venue
Nature Communications
Published
2012-12-04
Volume
3
Issue
1
Pages
1245-1245
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2163940893
Cited by
1,371
References
48
Citations by year
2026: 83 · 2025: 138 · 2024: 139 · 2023: 137 · 2022: 160 · 2021: 143 · 2020: 126 · 2019: 98 · 2018: 97 · 2017: 73 · 2016: 51 · 2015: 59 · 2014: 37 · 2013: 29
FWCI
16.08
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
  • Chalmers Publication Library (Chalmers University of Technology) (submittedVersion)
  • Chalmers Research (Chalmers University of Technology) (submittedVersion)
Funders
  • Stiftelsen för Strategisk Forskning
  • Knut och Alice Wallenbergs Stiftelse
  • Vetenskapsrådet
  • Sahlgrenska Universitetssjukhuset
  • Göteborgs Universitet
  • Fondation Chalmers
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
gut microbiota, gut metagenome, Collinsella, Roseburia, Eubacterium, carotid artery stenosis, cerebrovascular disease, peptidoglycan biosynthesis, phytoene desaturase, beta-carotene, inflammation, lipid accumulation
MeSH terms
Aged, Eubacterium, Female, Humans, Inflammation, Male, Oxidoreductases, Peptidoglycan, Case-Control Studies, beta Carotene, Actinobacteria, Gastrointestinal Tract, Atherosclerosis, Metagenome

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