Objective To investigate the correlation between urinary calculi and upper urinary tract infections.Methods Twenty-six patients underwent lithiasis in upper urinary tract accompanied with infectious symptoms were enrolled in this study (test group).Blood culture was obtained in peak temperature before lithotrity,urine sample was obtained for bacterial culture.Thirty patients with calculi in upper urinary react accompanied no infectious symptoms in the same period were enrolled in control group.Calculi were pestled for bacterial culture and analyzed the components after the calculi were removed.Results In test group,the positive of blood,urine,calculi culture were 4,23,18 patients.The prominent component of calculi was hexahydrate magnesium ammonium phosphate.Bacteria in 13 positive urine sample had the same property with the calculi samples which came from the same cases.In control group,the positive of urine,calculi culture were 4,4 patients.The prominent component of calculi were calcium oxalate calculi and uricite calculi.The morbidity of upper urinary tract infections in test group was significantly higher than that in control group [69.2％(18/26) vs.13.3％(4/30)] (P ＜ 0.05).The coincidence of urine culture and calculi culture in test group was significantly higher than that in control group [72.2％(13/18) vs.25.0％(1/4)](P＜0.05).Conclusions Infectious calculi can easily result in upper urinary tract infections.Hexahydrate magnesium ammonium phosphate can make the prominent component in infectious calculi.

Objective To investigate the way of improving the diagnosis and cure rate of pulmonary synovial sarcoma.Methods One case of pulmonary synovial sarcoma was selected,at the same time accompanied with 80 cases of pulmonary synovial sarcoma with complete data referenced from China Journal Full-text Database on October 2012 were retrospectively studied.The main clinical manifestations,imaging characteristics were analyszed.According to the pathology,immunohisochemistry and molecular biology for diagnosis and discrimination,in order to reduce the misdiagnosis.Results All of 81 patients,40 male cases and 41 female cases,the main clinical manifestations were chest pain,difficult breathing,hemoptysis and cough.In individual cases without any discomfort.All cases had not been accurately diagnosed before surgery.Ultimately diagnosis of patients depend on histopathology and immunohistochemistry.Conclusions Pulmonary synovial sarcoma shows different clinical symptoms but specific imaging characteristic and maybe confused with other pulmonary tumors or inflammation.Histopathological,immunophenotypic and fusion gene detection is the mainly technics for diagnosis.Surgery is the primary therapy,patients undergoing uncompletely resection have a poor prognosis.

Objective To discuss the MRI feature of meningeal metastasis and correlation of peritumoral brain edema and vascular endothelial growth factor(VEGF)expression.Methods 48 patients with meningeal metas-tasis were observed with plain and enhanced 1 .5 T magnetic resonance imaging scans,surgical removal of the tumor tissues was measured with VEGF immunohistochemistry.Results The patients with MC showed three types MRI fea-ture.The more vascular endothelial growth factor of the tumor tissues expressed,the more peritumoral brain edema (χ2 =33.34,P<0.01 ).Conclusion MRI scanning is necessary for clinical diagnosis in MC.There are positive correlation between the expression of vascular endothelial growth factor of the tumor tissues and peritumoral brain edema(P<0.01).

Gallbladder carcinoma is the most common malignant tumor in biliary system,the early diagnosis rate is still very low and the prognosis is extremely poor.At present,the pathogenesis of gallbladder is not clear.Recently,with the development of the neoplastic stem cell research on gallbladder carcinoma,the latest study showed SP positive cells could be separated from the GBC-SD cell.Further more,related researches have shown that gallbladder respectively with CD133+ cells,CD44+ cells,CD133+ CD44+ cells had possessed the cloned formation ability,the stronger growth ability,the differentiation capacity and forming-tumor ability.In this review,we will discuss the research of the relationship between the gallbladder carcinoma and neoplastic stem cells.

Long non-coding RNA (LncRNA) is a kind of length greater than 200 nucleotides not encode any proteins RNA molecules.Although not encode any proteins,LncRNA through chromatin modification,transcription activation and interference et al.involved in a variety of control process in the cell.In recent years,the study found that the expression of a variety of LncRNA abnormalities in gastric cancer.These changes are closely associated with the development and prognosis of gastric cancer,regulate the expression of related LncRNA can significantly improve the prognosis of patients.Targeted to regulate the expression of LncRNA can provide new strategies for treatment of gastric cancer.

Nowadays,laparoscopy has already been widely applied to the diagnosis and treatment of kinds of diseases,improving the outcome of the patients with its less invasive advantages.In the treatment of gastric cancer,doctors always choose different methods of laparoscopic gastrectomy(LG) according to the tumor's location and its invasion and metastasis.But LG hasn't got widely application in the treatment of gastric cancer,which is meanly attributed to the exist of some Technical problems,failing to control the complications very well and the lack of evidence of long-term oncological outcomes.But with the development of new technology and the accumulation of the surgeons' experience,these problems might be conquered to a certain extent.In this review,the author will summary the application status of LG in the treatment of gastric cancer.

Cancer stem cells are special stem cells and are found recently in many tumors,and have the capability of self renewal and differentiation and can gradually differentiate into matured tumor cells to form the primary lesion and the various metastasis lesions of tumors.As well known,cancer stem cells shared strong ability of resistant to chemotherapy and/or radiotherapy,which is mainly related to many kinds of molecules and theirs relative regulation in niche regarding to cancer stem cells.Currently,the strategies of some novel therapies are conducted to detect the targeting sites with relevant to the microenvironments of cancer stem cells,such as the angiogenesis and epithelial-mesenchymal transition of cancer stem cells.Furthermore,insights into drug-resistance of cancer stem cells and its niche may offer new therapeutic strategies for the treatment of tumors.

Objective To investigate the role of vascular endothelial growth factor-C (VEGF-C) and its receptors in the formation of lymphatic vessels and lymphatic metastasis in gastric cancer. Methods By the domestic and overseas literatures review,the expressions of VEGF-C and its receptors in gastric cancer,their role in tumor lymphatic metastasis and prospect in treatment of gastric cancer were summarized. Results There was a significant correlation between VEGF-C and its receptors and the formation of lymphatic vessels and lymphatic metastasis in gastric cancer. VEGF-C high expression might be an early event in lymphatic metastasis and could be considered as an independent predictive factor of lymphaticmicrometastasis. By inhibition of gastric cancer cell from secrete VEGF-C or blockage of the interaction of VEGF-C with VEGFR-3,it was possible to inhibit tumor angiogenesis and the invasion and distant spread of cancer cells,thereby decreased mortality and improve survival. Conclusion VEGF-C and its receptors may promote the formation of lymphatic vessels and lymphatic metastasis in gastric cancer. It may be an effective way to gastric cancer for the treatments against VEGF-C and its receptors.

Objective To observe teletherapy and local hyperthermia effects on VX2 carcinoma rabbits'cytokines and curative effect. Methods 60 male white health rabbits were selected, and divided them into three group. The group of teletherapy were 20. The group of local hyperthermia were 20. So were the group of comparison. Their tumors' changes, rates of death and changes of IL-2, IL-6, IL-8, TNF, IGF, CA-50 before and after VX2 carcinoma replanted and those treated after one, three, four weeks were observed. Results The diameters of tumors and rates of death from large to small in turn was comparison's group, hyperthermia's group and teletherapy's group. After VX2 carcinoma replanted IL-2, IL-8 were low but IL-6, TNF, IGF, CA-50 were high. After being treated one, three or four weeks, IL-2, IL-8 were getting lower and lower but there was significant difference between teletherapy's group with other group in IL-2 and IL-8(P

Objective:To probe into the status characteristics and the dynamic change trend of the psychological stress among medical staff at four time points after exposed to blood-borne pathogen.Methods:A longitudinal study was carried out among 78 medical personnel in this study,with 67 of hepatitis B virus,5 of hepatitis C virus,4 of HIV and 2 of treponema pallidum respectively.Perceived stress scale (PSS-4),Post-traumatic stress disorder Checklist-5 (PCL-5),Hospital anxiety and depression scale (HADS) were used to assess the psychological status,including perceived stress,post-traumatic stress symptom,anxiety and depression at the four times.Data analysis was performed using repeated measures analysis of variance (RMANOVA) and paired sample t test to explore time effect of the psychological stress reaction in the exposed population.Results:The scores of PSS-4,PCL-5,HADS-A,and HADS-D increased from exposure,and gained highest at one month after exposed,then gradually declined with time (Ps ＜ 0.05).Conclusion:It suggests that the levels of perceived stress,post-traumatic stress symptom,anxiety,depression may be the highest at one month after exposed.