https://www.selleckchem.com/products/apr-246-prima-1met.html 2%) had recurrence in the locoregional components. 21 patients (30.4%) were diagnosed with liver metastasis. Of the patients with LRR, most recurrences occurred in the nodes along the superior mesenteric artery (36.2%), nodes around the abdominal aorta (26.1%), nodes in the hepatoduodenal ligament (13.0%), nodes around the celiac artery (10.1%), and anastomotic stoma (10.1%). CONCLUSION The high-risk sites of LRR after PD for primary DCCA are the nodes along the superior mesenteric artery, abdominal aorta, nodes in the hepatoduodenal ligament, nodes around the celiac artery, and anastomotic stoma. Adjuvant radiation should cover these areas to improve locoregional control for these patients. This study developed a process of genetically engineered bacteria Rhodococcus erythropolis expressing Nirs and AMO combined with membrane bioreactor (MBR), nanofiltration (NF) and reverse osmosis (RO) membrane (pRho-NA-MNR) for advanced treatment of landfill leachate. Results demonstrated that pRho-NA-MNR presented higher removal rate of chemical oxygen demand (COD), biological oxygen demand (BOD), ammonia nitrogen (N-NH4), total nitrogen (TN) and total organic carbon (TOC) than activated sludge (AS-MNR) system. Administration of pRho-NA increased nitrification by converting N-NH4 to nitrite (N-NO2) and Nitrate (N-NO3), and promoting denitrification by converting N-NO2 to nitrogen (N2) in the landfill leachate treatment, promoted the pH control, increased sludge activity and effluent yield, shortened phase length adaptation under alternating aerobic-anoxic conditions. pRho-NA increased the nitration and denitrifying rate in the aerobic and anaerobic stage in the system by increasing Cyt cd1 and Cyt c expression in the activated sludge. Nitrogen removal by nitrification and denitrification was positively correlated to the concentration of Nirs and AMO expression. Treatment with pRho-NA promoted pollutant removal efficie