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Related Concept Videos

Mismatch Repair01:20

Mismatch Repair

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Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
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Related Experiment Video

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Murine Fecal Isolation and Microbiota Transplantation
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Causal relationship between gut microbiota and pathological scars: a two-sample Mendelian randomization study.

Huidi Shucheng1,2,3, Jiaqi Li1,2,3, Yu-Ling Liu1,2,3

  • 1Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China.

Frontiers in Medicine
|July 17, 2024
PubMed
Summary
This summary is machine-generated.

The gut microbiome influences pathological scar development, including keloids and hypertrophic scars. This study identified specific gut bacteria causally linked to these scar types, offering new research directions.

Keywords:
Mendelian randomizationgut microbiotahypertrophic scarskeloidspathological scars

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Area of Science:

  • Dermatology
  • Microbiome Research
  • Genetics

Background:

  • Pathological scars like keloids and hypertrophic scars pose significant dermatological challenges.
  • Emerging research suggests a potential role for the gut microbiota in scar formation.

Purpose of the Study:

  • To investigate the causal relationship between gut microbiota and the development of keloids and hypertrophic scars.
  • To identify specific bacterial taxa associated with pathological scar formation.

Main Methods:

  • Employed a two-sample Mendelian randomization (MR) methodology.
  • Analyzed genome-wide association study (GWAS) data for gut microbiota, keloids, and hypertrophic scars.
  • Conducted rigorous sensitivity, heterogeneity, pleiotropy, and directionality analyses.

Main Results:

  • Identified five bacterial taxa causally linked to keloid formation: class *Melainabacteria*, class *Negativicutes*, order *Selenomonadales*, family *XIII*, and genus *Coprococcus2*.
  • Found seven gut microbiota causally associated with hypertrophic scars: class *Alphaproteobacteria*, family *Clostridiaceae1*, family *Desulfovibrionaceae*, genus *Eubacterium coprostanoligenes group*, genus *Eubacterium fissicatena group*, genus *Erysipelotrichaceae UCG003*, and genus *Subdoligranulum*.
  • Sensitivity analyses confirmed the robustness of these associations.

Conclusions:

  • The study provides evidence supporting a causal link between gut microbiota composition and pathological scar formation.
  • Findings offer critical insights for future research into the mechanisms and clinical management of scars.