| Title: | Proinflammatory Diet, Plasma Metabolome, and the Risk of Ischemic Stroke: Evidence From the UK Biobank. |
| Journal: | Journal of the American Heart Association |
| Published: | 9 Jun 2026 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/42261920/ |
| DOI: | https://doi.org/10.1161/jaha.125.046192 |
Publication 20756
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Abstract
BACKGROUND: Ischemic stroke (IS) imposes a substantial global burden, yet the metabolic pathways linking proinflammatory dietary patterns to its pathogenesis remain unclear.</p>
METHODS: We conducted a 3-phase prospective analysis within 502 410 participants from the UK Biobank. A total of 249 metabolites determined with high-throughput nuclear magnetic resonance spectroscopy and 168 directly metabolites were included. In phase I, sex-specific metabolic signatures were selected based on Energy-Adjusted Dietary Inflammatory Index (E-DII) with least absolute shrinkage and selection operator. In phase II and III, a Cox proportional hazards regression model was used to evaluate the associations of E-DII and selected metabolic signatures with IS risk. The joint effect of E-DII and polygenic risk score were also evaluated.</p>
RESULTS: The metabolic signature, comprising 32 metabolites in women and 45 metabolites in men, were determined based on E-DII, with correlation coefficients of 0.279 and 0.296 (P<0.001). The association between E-DII and IS risk was only observed in women (hazard ratio [HR], 1.48 [95% CI, 1.16-1.89]) when comparing the participants in the highest quintile group with those in the lowest. No interaction was found between E-DII and polygenic risk score. We also found that the metabolic signature in women was positively associated with IS risk (HR, 1.59 [95% CI, 1.26-2.01]), and mediated 23.9% of this association. Among the contributing components, albumin, degree of unsaturation, and glycoprotein acetyls were identified as key factors.</p>
CONCLUSIONS: We identified sex-specific metabolic signatures related to a proinflammatory diet, and confirmed their association with increased IS risk in women.</p>
19 Keywords
- Aged
- Biological Specimen Banks
- Biomarkers
- Diet
- Female
- Genetic Risk Score
- Humans
- Inflammation
- Ischemic Stroke
- Male
- Metabolome
- Metabolomics
- Middle Aged
- Prospective Studies
- Risk Assessment
- Risk Factors
- Sex Factors
- UK Biobank
- United Kingdom
9 Authors
- Xikang Fan
- Zidong Wang
- Mengxia Li
- Yu Qin
- Hao Yu
- Dong Hang
- Jinyi Zhou
- Ran Tao
- Jian Su
1 Application
| Application ID | Title |
|---|---|
| 177151 | Identification and comparison of plasma common and distinct metabolites for cardiovascular diseases and related lifestyles |
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