Clinical Scorecard: Skin odor signatures may shift with age
At a Glance
| Category | Detail |
|---|---|
| Condition | Clinical topic addressed by the source article: Skin odor signatures may shift with age |
| Key Mechanisms | Skin odor profiles reflect glandular secretions and microbial metabolism. Age-associated patterns include acidic VOCs in infancy, androgen-related compounds during puberty, and 2-nonenal in older populations; the proposed oxidative mechanism for 2-nonenal has not been experimentally established. Corynebacterium, Staphylococcus, and Cutibacterium acnes were associated with production of different VOCs. |
| Target Population | People across the lifespan; the review also describes sex-related differences during reproductive age and menstrual-cycle-associated variation in female profiles. |
| Care Setting | Care setting described in the source article. |
Key Highlights
- The narrative review included 55 studies; the median sample size among included studies was 35 participants.
- Fatty acids were the most abundant chemical class, and 3-methyl-2-hexenoic acid was identified as a characteristic axillary odorant.
- Infant profiles were dominated by acidic VOCs; puberty was associated with androgen-related steroid VOCs and increased branched-chain fatty acids.
- In older populations, studies reported emergence of 2-nonenal, with concentrations increasing after age 40 years.
- Disease-detection evidence, including studies of diabetes and melanoma, was preliminary; most studies enrolled fewer than 50 participants and lacked independent validation.
Guideline-Based Recommendations
Diagnosis
- The review does not establish skin odor profiling as a diagnostic method for disease.
Management
- The authors called for standardized analytical protocols and rigorous validation before odor-based approaches move toward clinical use.
Monitoring & Follow-up
- The authors identified longitudinal studies and normative reference data as research needs.
Risks
- Potential influences such as diet, medication use, and hygiene were controlled inconsistently across studies.
- The evidence base was limited by predominantly cross-sectional designs, small samples, methodological variation, and insufficient independent validation.
Patient & Prescribing Data
The review describes skin VOC patterns across age and sex; it does not provide prescribing data or treatment recommendations.
No treatments were evaluated. Potential clinical applications in disease detection and health monitoring were described as preliminary.
Clinical Best Practices
- The review reports limited longitudinal evidence and small samples in studies of age-associated odor patterns.
- The review reports that disease-detection studies generally lacked independent validation; odor signatures are not established as diagnostic tests.
- The authors identified standardized analytical protocols, control of relevant confounders, longitudinal studies, and normative reference data as research needs.
Related Resources & Content
This content is an AI-generated, fully rewritten summary based on a published scholarly article. It does not reproduce the original text and is not a substitute for the original publication. Readers are encouraged to consult the source for full context, data, and methodology.
