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Quantification of plasma microRNAs in a group of healthy smokers, ex-smokers and non-smokers and correlation to biomarkers of tobacco exposure.


ABSTRACT: The stability of circulating miRNAs, their non-invasive sampling techniques and deregulation in diseases make them potential candidate biomarkers of biological effect. Here, we profiled the level of 84 plasma miRNAs in 30 smokers, 20 non-smokers and 20 ex-smokers. A robust statistical strategy was applied with replicate samples to account for reproducibility of the results. We identified differential expression of miR-124 and let-7a between the smoking and control groups. We further explored the dose-response relationship of miR-124 and let-7a with two biomarkers of tobacco exposure and found that this relationship was affected by adjustments based on age, pack-year and gender.

SUBMITTER: Banerjee A 

PROVIDER: S-EPMC4673588 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature

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Quantification of plasma microRNAs in a group of healthy smokers, ex-smokers and non-smokers and correlation to biomarkers of tobacco exposure.

Banerjee Anisha A   Waters David D   Camacho Oscar M OM   Minet Emmanuel E  

Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals 20150119 2


The stability of circulating miRNAs, their non-invasive sampling techniques and deregulation in diseases make them potential candidate biomarkers of biological effect. Here, we profiled the level of 84 plasma miRNAs in 30 smokers, 20 non-smokers and 20 ex-smokers. A robust statistical strategy was applied with replicate samples to account for reproducibility of the results. We identified differential expression of miR-124 and let-7a between the smoking and control groups. We further explored the  ...[more]

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