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  1. Fulltext Association between hydrocarbon exposure and risk of stroke: a systematic literature review
    Shabil M, Gaidhane AM, Vadia N, Menon SV, Chennakesavulu K, Panigrahi R, et al.
    BMC Neurol, 2025 Feb 21;25(1):71.
    PMID: 39984906 DOI: 10.1186/s12883-025-04083-x
    BACKGROUND: Hydrocarbon exposure, including polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs), is increasingly linked to vascular dysfunction and stroke, a leading cause of morbidity and mortality globally. Common in occupational and environmental contexts, hydrocarbons induce oxidative stress, systemic inflammation, and endothelial dysfunction, disrupting vascular health. This systematic review examines the association between hydrocarbon exposure and stroke, emphasizing specific metabolites and their cerebrovascular effects.

    METHODS: A comprehensive search across PubMed, Embase, and Web of Science was conducted through December 10 2024, identifying observational studies exploring hydrocarbon exposure and stroke risk. Studies meeting predefined inclusion criteria, excluding those with major methodological flaws, were synthesized narratively. Variations in hydrocarbon types, population demographics, and stroke outcomes were considered.

    RESULTS: Six studies, including five cross-sectional and one retrospective cohort, with sample sizes ranging from 5,537 to 283,666 participants, demonstrated significant associations between hydrocarbon exposure and stroke risk. Key findings revealed strong associations for metabolites like 1-hydroxynaphthalene (OR: 1.89; 95% CI: 1.62-2.20) and 2-hydroxyfluorene (OR: 1.94; 95% CI: 1.66-2.26). However, variability in findings was noted, attributed to differences in study design, exposure levels, and populations studied.

    CONCLUSION: This review highlights a complex relationship between hydrocarbon exposure and stroke risk, with some studies indicating significant associations and others reporting inconsistencies. Standardized, large-scale research is essential to clarify this relationship, identify high-risk populations, and guide public health strategies to mitigate exposure and prevent stroke.

    CLINICAL TRIAL NUMBER: Not applicable.

    Matched MeSH terms: Polycyclic Hydrocarbons, Aromatic/adverse effects
  2. Polycyclic Aromatic Hydrocarbons (PAHs) and their Bioaccessibility in Meat: a Tool for Assessing Human Cancer Risk
    Hamidi EN, Hajeb P, Selamat J, Abdull Razis AF
    Asian Pac J Cancer Prev, 2016;17(1):15-23.
    PMID: 26838201
    Polycyclic aromatic hydrocarbons (PAHs) are primarily formed as a result of thermal treatment of food, especially barbecuing or grilling. Contamination by PAHs is due to generation by direct pyrolysis of food nutrients and deposition from smoke produced through incomplete combustion of thermal agents. PAHs are ubiquitous compounds, well-known to be carcinogenic, which can reach the food in different ways. As an important human exposure pathway of contaminants, dietary intake of PAHs is of increasing concern for assessing cancer risk in the human body. In addition, the risks associated with consumption of barbecued meat may increase if consumers use cooking practices that enhance the concentrations of contaminants and their bioaccessibility. Since total PAHs always overestimate the actual amount that is available for absorption by the body, bioaccessibility of PAHs is to be preferred. Bioaccessibility of PAHs in food is the fraction of PAHs mobilized from food matrices during gastrointestinal digestion. An in vitro human digestion model was chosen for assessing the bioaccessibility of PAHs in food as it offers a simple, rapid, low cost alternative to human and animal studies; providing insights which may not be achievable in in vivo studies. Thus, this review aimed not only to provide an overview of general aspects of PAHs such as the formation, carcinogenicity, sources, occurrence, and factors affecting PAH concentrations, but also to enhance understanding of bioaccessibility assessment using an in vitro digestion model.
    Matched MeSH terms: Polycyclic Hydrocarbons, Aromatic/adverse effects*
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