Metabolic Aging and COPD
Author Information
Author(s): Guo Claire J., Godbole Suneeta, Labaki Wassim W., Pratte Katherine A., Curtis Jeffrey L., Paine Robert, Hoffman Eric, Han Meilan, Ohar Jill, Cooper Christopher, Kechris Katerina J., DeMeo Dawn L., Bowler Russell P.
Primary Institution: University of Colorado Anschutz Medical Campus
Hypothesis
Is accelerated aging associated with chronic obstructive pulmonary disease (COPD)?
Conclusion
The study suggests a common mechanism between aging and COPD, indicating that COPD is associated with accelerated metabolic aging.
Supporting Evidence
- The metabolic age score was strongly associated with chronic age in the validation cohort (correlation coefficient = 0.8).
- COPD subjects with accelerated aging had more severe disease compared to those with decelerated aging.
- COPD and aging metabolites were shared more than expected.
- Amino acid and glutathione metabolism pathways were overrepresented in the study.
- Accelerated metabolic aging is linked to worse COPD outcomes.
- Elastic net regression was used to create metabolomic age scores.
- The study included a diverse population of smokers and non-smokers.
- Findings suggest potential lifestyle modifications could benefit COPD patients.
Takeaway
As people age, their bodies change in ways that can make them more likely to get COPD, and those with COPD may be aging faster than others.
Methodology
The study analyzed plasma samples from two large cohorts using metabolomic profiling to create metabolomic age scores and assess their association with COPD.
Potential Biases
The analysis did not adjust for clinical or demographic covariates, which could affect the results.
Limitations
The study is observational, and it is unclear whether the identified pathways can be modified to prevent COPD progression.
Participant Demographics
Participants included 10,198 non-Hispanic White and African American individuals aged 45-80, with a mix of never, former, and current smokers.
Statistical Information
P-Value
p < 0.001
Statistical Significance
p < 0.001
Digital Object Identifier (DOI)
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