https://www.selleckchem.com/products/Mizoribine.html The E. coli JM109/rCsu pilus-producing clone significantly increased biofilm formation and adherence to A549cells; however, the Csu-knockout mutant dramatically lost biofilm-making ability but, in contrast, increased adherence. Moreover, both of biofilm formation and adherence could be significantly inhibited by d-mannose and methyl-α-d-mannopyranoside in Csu pilus-producing E. coli JM109, whereas in A. baumannii ATCC17978, high concentration of carbohydrates was required for the inhibition, suggesting that Csu pilus is sensitive to d-mannose. This is the first study confirming that Csu pilus of A. baumannii belongs to mannose-sensitive type 1 pilus family and contributes to biofilm formation and bacterial adherence to human epithelial cells. This is the first study confirming that Csu pilus of A. baumannii belongs to mannose-sensitive type 1 pilus family and contributes to biofilm formation and bacterial adherence to human epithelial cells. Pancreaticoduodenectomy (PD) is considered the most complicated operation in abdominal surgery. The safety and effectiveness of PD in older patients has been questionable because older adults are often beset by one or more systemic diseases and have poor surgical tolerance. To evaluate the safety and effectiveness of PD in patients aged 70 or older. We conducted a literature search on PubMed, EMBASE, Cochrane Library and other databases to discover all literature reporting a comparison of the efficacy of PD in patients 70years old and older versus patients under 70years old. Our cutoff date is August 2020. Revman5.3 statistical software was used for the analysis. Twenty cohort studies were determined to be eligible with a total of 6508 patients; 2274 patients were 70years old and older and 4234 patients under 70years old. Meta-analysis results showed that after PD in patients over 70years of age and older the mortality rate (RR=2.1, 95%CI1.59-2.78, p<0.001), the overall postop