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Ιατρική : Τα αισθητικά συστήματα της όρασης,ακοής,αφής,γεύσης και όσφρησης.
Τρίτη 8 Νοεμβρίου 2016
MDM2 SNP285 Polymorphism with Cancer Susceptibility
Association of the MDM2 SNP285 Polymorphism with Cancer Susceptibility: A Meta-Analysis: The mouse double minute 2 (MDM2) gene encodes a negative regulator for p53, and the polymorphism SNP285 in the promoter region of MDM2 gene has been implicated in cancer risk, but individual published studies had inconclusive results. Therefore, we performed this meta-analysis to obtain a more precise estimation between MDM2 SNP285 polymorphism and risk of cancer. A systematic literature search was performed using the PubMed, Embase, and Chinese Biomedical (CBM) databases. Ultimately, 16 published studies comprising 14,573 cases and 9,115 controls were included. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the strength of associations. Overall, MDM2 SNP285 polymorphism was significantly associated with a decreased overall cancer risk with the heterozygous model (OR = 0.89, 95% CI = 0.79–0.99), and reduced ORs were observed with other genetic models (dominant: OR = 0.90, 95% CI = 0.79–1.01 and allele comparison: OR = 0.91, 95% CI = 0.80–1.03) but not reaching statistical significance. Stratification analysis indicated a decreased risk for ovarian cancer, Caucasians, and studies with relatively large sample size. Despite some limitations, this meta-analysis indicated that the MDM2 SNP285 polymorphism was associated with a decreased cancer risk, which warrants further validation in large and well-designed studies.
http://ift.tt/2fuu584
http://ift.tt/2fuu584
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