Crohn's disease (CD) is a chronic granulomatous disease with unknown causes, and its incidence shows a rising trend in China. So far there is no way for the complete cure of the disease. Conventional drug therapy has many limitations. The appearance of biological agents brings new treatment options for CD and also initiates a debate over "Step-up" versus "Top-down" strategies. Rational nutrition supplement plays an important role in the comprehensive treatment of CD. This paper reviews the efficacy of conventional drugs, new progress in drug therapy, roles and status of nutritional support, and new treatment strategies for CD.

In the treatment of parenteral nutrition(PN) of preterm infants, parenteral nutrition associated cholestasis(PNAC) is the most common complication. However, the mechanisms of how this complication happens are unknown. This paper summarizes the research reports about PNAC both at home and aboard in recent years and raises various precautions on premature birth avoiding, reasonable feeding, PN projects optimizing and so on.Ursodeoxycholicacid is the first-line drug in the current treatment for PNAC.

Non-Hodgkin's lymphoma (NHL) is a heterogeneous disease from various resources and biological characters. Currently, about 90 ％ of NHL is relative to chromosomal abnormalities. This review emphasizes chromosomal abnormalities in non-Hodgkin's lymphoma, which can not only help understanding NHL genesis,but also is useful for diagnosis on early stage and proper treatment.

Circular RNA (circRNA) is widely found in various species' cells.They have several characteristics including structural stability,high expression and expression in a tissue-specific manner.Recent studies have demonstrated that circRNA is a member of competing endogenous RNA (ceRNA).CircRNA regulate the expression of related RNA molecules via binding with target microRNA (miRNA) and play an important role in gene expression and regulation.The finding of circRNAs not only expand our understanding about eucaryon and ceRNA regulation network,but also indicate that circRNA might be a new biological marker for diagnosis and has good application prospects in drug development research,and disease diagnosis and treatment.Because current research on circRNA is still very few,a brief summary about circRNA is presented in this paper for further research.

Radical pancreaticoduodenectomy is the most effective method for the treatment of malignant tumor of pancreatic head.Safe and complete resection of the uncinate process of the pancreas is the most difficult and important part in radical pancreaticoduodenectomy.For the past years,we put forward the new idea of prior selective arteriovenous treatment in radical pancreaticoduodenectomy according to whether the portal vein and superior mesenteric vein was invaded by the tumor.Thin slice scan and vessel reconstruction using multidetector spiral CT can accurately evaluate the condition of the blood vessels near the pancreatic tumor and judge whether the tumor was resectable.By exchanging superior mesenteric artery,controlling blood stream of pancreatic uncinate process and using 3 or 4 vascular blocking bands and the integrated radical resection of uncinate process for those patients can be successfully completed.It can reduce the operating bleeding,operating time and the miscut of superior mesenteric vein and (or) superior mesenteric artery,and also avoid postoperative pancreas necrosis,infection and hemorrhage caused by the pancreas uncinate process residues,and theoretically reduces the chance of tumor cells spread.

Tumor dormancy is a state that tumor cells long-term exist in human body,without obvious growth. Dormant cell is one of the origins of tumor recurrence or metastasis. The exact mechanism of tumor dor-mancy is still unclear. Combined with cellular and molecular biological techniques,tumor cell transplantation and culture in vitro can establish experimental tumor dormancy-recurrence models. These in vivo and in vitro models can be used to investigate mechanisms of tumor dormancy and to explore novel treatments.

Inflammatory bowel diseases (IBD) possibly lie in a dysregulated response of the intestinal mucosal immune system towards intestinal microflora under a combined action of genetic and environmental factors.Mucosal dendritic cells are assumed to play key roles in regulating immune responses in the antigen-riched intestinal environment, either by initiating immune responses or by maintaining tolerance. Defects in this regulation are supposed to lead to IBD. This paper reviews the recent research advances in the relationship between IBD and dendritic cells.

The paper systematically elaborated the concept of corporate governance structure of public hospitals and theories in relation. In addition, it analyzed the status quo and problems existing in corporate governance structure of public hospitals in China, proposing the basic principles and the council model of corporate governance structure. The authors emphasized the following responsibilities and rights of the council, the president, and the board of supervisors in such a framework: 1) As the hospital's highest decision-maker, the council exercises the rights of ownership, playing a decisive role in hospital management; 2) the president is appointed and dismissed by the council, and authorized to run the hospital; 3) the supervisors are responsible for overseeing the council and senior management. In the end, this paper summarized the external environment required for building corporate governance structure of public hospitals.

Twenty cases of ankle sprain were treated on the outside with Tuina combined with physical therapy. After 10 treatments, 19 cases restored normal ankle function, and 1 case got no obvious effect.

The G protein-coupled receptor, GPR40, is a specific receptor for free fatty acids. Singnaling pathways are activated in islet ?-cells by fatty acids as binding to GPR40. Fatty acids regulate insulin secretion and cause ?-cell hyperplasia through GPR40. GPR40 also mediates responses to antidiabetic drugs like thiazolidinediones. GPR40 agonists and/or antagonists show potential effect in the development of new anti-diabetic drugs.