In recent years,more and more experts and scholars study enhancer of zeste homolog 2 (EZH2) and the relationship of the overexpression of EZH2 gene with the occurrence,development,metastasis,and prognosis of tumor,to explore the early diagnosis of cancer,monitoring metastasis and judging the prognosis to provide the new ideas and the methods,to provide the reference for the basic and clinical research.

Methods involved in the treatment of malignant tumor are surgical therapy, radiotherapy, chemotherapy and immunotherapy. Although some effects have been showed in tumor therapy, the limits of single use of those methods can not be avoided. Therefore, combined therapy has been pursued in order to achieve better results. The effects of those combined methods such as chemotherapy combined with cytokine, chemotherapy combined with tumor vaccine, chemotherapy combined with adjuvants have been approved both experimentally and clinically. These results, in some extent, will provide us a new way to fight against tumor.

ObjectiveTo discuss the diagnosis and therapy of primary presacral tumor. Methods23 patients with primary presacral tumors underwent surgical treatment from 1983～1999 were studied retrospectively. ResultsIn respect to pathological type, congenital tumor was the most frequent one in 23 patients. Digital examination together with B ultrasound and CT examination were quite important in determining the extent and degree of tumor invasion. As for operative ways, transacral and transperineal approach were the most common choices to detect the tumor. Conclusion Complete and enbloc resection is the principal method in treating presacral tumor, whether the lesions are beign or malignant. Choices of operative way should be made accordial to tumor condition. Keep nerves and blood vessels from being injuried during operation.

Objective: To evaluate the feasibility of performing muscle-sparing thoracotomy and intercostal sutures in the treatment of upper and/or middle thoracic esophageal cancer for the purpose of tumor control and postoperative quality of life improvement.Methods: Seven patients with esophageal cancer were treated with vertical muscle-sparing thoracotomy and Mckeown esophagectomy.Detailed clinic data were summarized and analyzed with patient follow-up information.Results: Of the 7 patients,five were still alive with a 71.4% five-year survival rate.There were no deaths resulting from the operation in this group.The mean length of thoracic incision was 11 cm.The range of hospital stays was 14 to 25 days,with a mean length of 18 days.No patients complained of impaired shoulder action,and the incision pain was hardly perceived without external stimulation 1 month after operation.Conclusion: Performing the muscle-sparing thoracotomy in the treatment of early-stage esophageal cancer located in the upper and /or middle thoracic segment yields a satisfactory long-term survival rate with an improved life quality in terms of incision pain relief and shoulder function.

Leptin receptor plays an important role in the modulation of energy metabolism and lipid equilibrium after binding with Leptin. Leptin receptor locates widely in the human tissues and is closely linked with obesity. This manuscript reviews the structure of leptin receptor gene and its relationship with obesity, and discusses the role of leptin receptor in obesity development and therapy.

Infectious diseases have emerged as one of the leading causes of morbidity and mortality in systemic lupus erythematosus(SLE)patients,so early diagnosis of infectious complication in SLE patients is absolutely beneficial for patients' prognosis.C-reactive protein(CRP)and Procalcitonin(PCT)can help to differentiate infections with active SLE in SLE patients.Serum KL-6 can help to distinguish pulmonary involvement of SLE from infections in SLE patient.The most common pathogens for infection in SLE patients are bacteria,but more attention should be paid to viral and fungal infections,which have been on a rise recently.

Antiretroviral Therapy, Highly Active ; CD4 Lymphocyte Count ; HIV Infections ; drug therapy ; immunology ; Humans

Child ; China ; Genetic Diseases, Inborn ; diagnosis ; genetics ; physiopathology ; Genetic Predisposition to Disease ; Humans ; Nervous System Diseases ; diagnosis ; genetics ; Pathology, Molecular ; Pediatrics ; methods ; trends

Antigens, CD34 ; metabolism ; Choriocarcinoma ; pathology ; Diagnosis, Differential ; Female ; Hemangioma ; metabolism ; pathology ; Humans ; Keratin-18 ; metabolism ; Mesenchymoma ; pathology ; Placenta ; pathology ; Placenta Diseases ; metabolism ; pathology ; Platelet Endothelial Cell Adhesion Molecule-1 ; metabolism ; Pregnancy ; Pregnancy Complications, Neoplastic ; metabolism ; pathology ; Young Adult

Based on the analysis of the influence of the valve pivot distance on the performance of mechanical heart valve (MHV), such as the valve opening and closing features, flow field characteristics and the valve assembly properties, value constraints of the valve pivot distance were established, and the reasonable valve was obtained by means of the finite element method. It can be shown that the central flow characteristics of the valve could be enhanced with the increasing of the ratio of pivot distance to valve inner diameter, but the plastic deformation of the ring could be liable to occur in the MHV assembly process. It is proved that the valve of specifications can be designed in similar ratio of pivot distance to valve inner diameter according to the result of the valve performance experiment.
Heart Valve Prosthesis ; Heart Valves ; Prosthesis Design