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  4. Comparison of the gut microbiome composition among individuals with acute or long-standing spinal cord injury vs. able-bodied controls

Comparison of the gut microbiome composition among individuals with acute or long-standing spinal cord injury vs. able-bodied controls

The Journal of Spinal Cord Medicine, 2022 · DOI: 10.1080/10790268.2020.1769949 · Published: January 1, 2022

Spinal Cord InjuryGastroenterologyRehabilitation

Simple Explanation

The study compares the gut bacteria of people with recent spinal cord injuries (A-SCI), long-term injuries (L-SCI), and those without injuries (AB controls). The balance of gut bacteria is important for overall health. The study found that the types of bacteria present differed among the three groups. Those with spinal cord injuries had gut bacteria profiles that shared features linked to metabolic syndrome, inflammation, depressive disorders, or antibiotic use. The gut microbiome resembles an endocrine organ. The composition and function of gut microbial communities are fluid, modulated by a plethora of environmental and host genetic factors.

Study Duration
Not specified
Participants
7 A-SCI, 25 L-SCI, and 25 AB controls
Evidence Level
Cross-sectional study

Key Findings

  • 1
    The gut microbiome composition differs significantly among individuals with A-SCI, L-SCI, and AB controls, as demonstrated by differences in both the alpha- and beta-diversity indices.
  • 2
    Compared to the AB controls, microbiome composition in the SCI groups share features linked to metabolic syndrome, inflammation-related bowel disorders, depressive disorders, or antibiotics use.
  • 3
    Compared to A-SCI and AB control groups, individuals with L-SCI share features linked to physical inactivity.

Research Summary

This study investigates the gut microbiome composition in individuals with acute (A-SCI) and long-standing spinal cord injury (L-SCI) compared to able-bodied (AB) controls, revealing significant alterations in gut microbiota among the three groups. The results indicate gut dysbiosis (GD) in the A-SCI population and support previous findings in the L-SCI group, with differential abundances of microbial communities linked to impaired metabolic health, antibiotic use, depression, and intestinal inflammations. The study highlights the potential involvement of gut microbiome composition in neurorecovery in A-SCI and the development of chronic disorders in L-SCI, suggesting new avenues for future microbiome studies in SCI.

Practical Implications

Personalized Interventions

Tailoring dietary and probiotic interventions based on individual microbiome profiles to improve metabolic health and reduce inflammation in SCI patients.

Rehabilitation Strategies

Incorporating exercise and physical activity programs to promote a healthier gut microbiome composition, particularly for individuals with long-standing SCI.

Antibiotic Stewardship

Implementing strategies to minimize unnecessary antibiotic use in acute SCI to mitigate the negative impacts on the gut microbiome and potentially improve neurorecovery.

Study Limitations

  • 1
    Lack of biomarker data for metabolic health and inflammation for all participants.
  • 2
    Limited analysis to gut microbiome compositional data with the use of 16s rRNA.
  • 3
    Inability to delineate the effects of potential confounders such as diet, exercise, and previous antibiotic use.

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