https://www.selleckchem.com/products/anlotinib-al3818.html Mechanistically, SNHG17 could function as an endogenous sponge of miR-124-3p in BC cells. Moreover, the repression of cell proliferation, migration and invasion induced by SNHG17 knockdown would reversed by miR-124-3p inhibitor. Conclusion The present study demonstrated that the lncRNASNHG17 could regulate the progression of BC by sponging miR-124-3p. © The Author(s) 2020.Background Recently, the De Ritis (AST/ALT) ratio has been considered as a prognostic biomarker for various malignancies. We conducted this systematic review and meta-analysis to explore the prognostic value of preoperative De Ritis ratio in patients after surgery for urothelial carcinoma. Methods We searched the online database Embase, PubMed and Cochrane Library up to October 2019. The hazard ratio (HR) and 95% confidence interval (CI) were extracted from the studies. Results A total of 8 studies incorporating 3949 patients were included in the quantitative synthesis. We observed that elevated preoperative De Ritis ratio is associated with inferior OS (HR = 1.97; 95% CI 1.70-2.28; P  less then  0.001), CSS (HR = 2.40; 95% CI 2.02-2.86; P  less then  0.001), RFS (HR = 1.31; 95% CI 1.11-1.54; P = 0.001), PFS (HR = 2.07; 95% CI 1.68-2.56; P  less then  0.001) and MFS (HR = 2.39; 95% CI 1.16-4.91; P = 0.018). Stratified by diseases, the elevated De Ritis ratio also served as an unfavorable factor. Conclusion The elevated preoperative De Ritis ratio is an unfavorable factor for patients with urothelial carcinoma. In patients with BC and UTUC, the elevated preoperative De Ritis ratio is also associated with poor prognosis. But De Ritis ratio must be validated in large, independent cohorts before it can be applied widely. © The Author(s) 2020.Background & objectives Patient safety is a crucial factor in the provision of quality healthcare and is therefore a global health concern. It is an area in which ethical concerns and high-quality clinical