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https://www.selleckchem.com/products/dubs-in-1.html BACKGROUND Self-reported smoking behavior is widely used in identifying the eligibility for lung cancer screening (LCS). In clinical trials, self-reported smoking status was shown to be a reliable measure, while its effectiveness outside of trial settings remains to be clarified. We aimed to verify self-reported smoking status with serum cotinine levels among LCS-eligible adults from the National Health and Nutrition Examination Survey (NHANES). METHODS From the combined 1999-2018 NHANES data, we selected adults (aged ≥18 years) with complete data on serum cotinine and smoking behavior, and determined their LCS eligibility according to the United States Preventive Services Task Force recommendation. Using established race/ethnicity specific cotinine cutpoints as the gold standard, we verified self-reported current smoking status with five measures sensitivity (Se), specificity (Sp), positive predictive value (PPV), negative predictive value (NPV), and reliability Kappa. We also compared these performance measadults with high risk for developing lung cancer in the general population. Thymic epithelial cells (TECs) are essential regulators of T cell development and selection. microRNAs (miRNAs) play critical roles in regulating TECs proliferation during thymus involution. miR-205-5p is highly expressed in TECs and increases with age. However, the function and potential mechanism of miR-205-5p in TECs are not clear. miRNA expression was profiled using TECs from male and female mice at 1 and 3 months old. A total of 325 differentially expressed miRNAs (DEMs) were detected at different ages in two sexes. 24 of the DEMs had the same trend between males and females. Among them, miR-205-5p had the highest fold change. Our results showed that the expression of miR-205-5p was dramatically increased in TECs from 1 to 9 months old mice. miR-205-5p mimic inhibited TECs proliferation. Moreover, we confirmed that Fa2h was the dir

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