Specific gene and miRNA expression patterns are potential early biomarkers of harmful environmental carcinogen exposures. The aim of our research was to develop an assay panel by using several miRNAs for the rapid screening of potential carcinogens. The expression changes of miR-124-1, miR-212, miR-132, miR-134, and miR-155 were examined in the spleen, liver, and kidneys of CBA/Ca mice, following the 20 mg/bwkg intraperitoneal 7,12-dimethylbenz(a)anthracene (DMBA) treatment.
View Article and Find Full Text PDFWe studied the effect of allelic polymorphisms of cytochrome P450 1A1 (CYP1A1) and uridine-diphosphate-glucuronosyltransferase 1A1 (UGT1A1) on the risk of development of head and neck cancers and overall survival. One hundred and forty-two head and neck cancer patients (48 with laryngeal, 42 with hypopharyngeal and 52 with mesopharyngeal tumours) were included in the study. The control group (150 individuals) included volunteers without malignant tumours.
View Article and Find Full Text PDFBackground: Aspartame (L-phenylalanine N-L-alpha-aspartyl-1-methyl ester) is an artificial sweetener with widespread applications. Previously published results have shown that among rats receiving aspartame a significant increase of lymphoreticular neoplasms, brain tumours and transitional cell tumours occurred. The aim of our short-term experiment was to investigate the biological effect of aspartame consumption by determining the expressions of key oncogenes and a tumour suppressor gene.
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