Objective To explore the clinical effect of Salvianolate for treatment of coagulant function abnormality in patients with septic shock.Methods One hundred and fifty-two septic shock patients admitted to Intensive Care Unit (ICU) of Department of Critical Care Medicine,Liuzhou Municipal Liutie Central Hospital from January 2007 to June 2016 were enrolled,and they were divided into a control group (67 cases) and a Salvianolate group (85 cases) by random number table.In the control group,conventional western medicine treatment was given,while in Salvianolate group,besides conventional treatment,additionally,Salvianolate 200 mg intravenous drip was applied daily for consecutive 10 days.The levels of D-dimer and platelet count (PLT) were examined on the 1st,3rd,7th,10th day after admission;disseminated intravascular coagulation (DIC) incidence and mortality were observed in 10 days after admission in the two groups.Results The levels of D-dimer were significantly lower in the Salvianolate group than those of the control group on 3,7,10 days after admission (mg/L:3 days was 9.14 ± 2.25 vs.18.42 ± 3.15,7 days was 6.71 ± 1.49 vs.14.57 ± 1.81,10 days was 1.01-± 0.20 vs.4.79-± 0.81,all P ＜ 0.01).In both groups,on the first day after admission the level of PLT began to decrease,on the 3th,7th day the levels were lowered significantly,and on the 10th day,the level of PLT was elevated;in the Salvianolate group,the levels of PLT were obviously higher on the 3rd,7th,10th day after admission than those of the control group [PLT (x 109/L) 3 days after admission:67.05-± 7.76 vs.40.97 ± 6.51,7 days:67.24 ± 6.35 vs.32.06 ± 5.13,10 days:90.18 ± 11.42 vs.59.04 ± 6.57,all P ＜0.01].The DIC incidence and mortality were significantly lower in the Salvianolate group than those of the control group [DIC incidence:12.94％ (11/85) vs.38.8％ (26/67),mortality:5.88％ (5/85) vs.29.85％ (20/67),both P ＜0.01].Conclusions Coagulant function abnormality was found in most patients with septic shock.The cause of PLT decreasing is mainly due to micro-vascular thrombosis that consumes a lot of PLT.Early intervention with Salvianolate in such patients can inhibit thrombosis,block the exhaustion of PLT and correct the coagulant function abnormality with certain efficacy in the patients.

Objective To analyze the distribution of image noise in low-dose chest CT scan and optimize the relative scanning parameters.Methods The CT images of the Chinese anthropomorphic chest phantom( CDP-1 C) were simulated into six groups of low-dose images with different noise indexs by using an image noise addition tool.The difference between the preset noise index and analog noise value was compared.The CT images of 20 volunteers were also simulated into nine groups of low dose scans with the tube currents of 10,30,50,80,100,120,150,180 and 240 mA.The noise values of images were recorded and analyzed.Results There was no statistical difference between the analog noise value and the noise index.The image noise of low-dose chest scan was increased with the decrease of tube current.The noise was increased quickly when the current was decreased from 50 to 30 mA ( F =24.09 - 40.79,P ＜ 0.05),but the noise increased slowly when the current decreased from 240 to 80 mA.There was no statistical difference between the noise of 80 mA group and that of 120 mA(P ＞ 0.05).Conclusions The noise addition tool can be used to evaluate the image noise of low-dose chest CT scan.Adoption of 80 mA in chest CT scan would result in low radiation dose without adding image noise.

Objective The radiotherapy resistance is one of important causes for nasopharyngeal carcinoma(NPC) treatment failure.Junctional adhesion molecule A(JAMA)is closely correlated with the tumor poor prognosis.Thus this experiment is to in vestigate the relationship between JAMA expression and the radiosensitivity of NPC.Methods To overexpress or interfere the JAMA expression in CNE2 and HONE1 cell lines.Then different doses of X-ray were adopted to conduct irradiation.The cell clone formation capacity and cellular apoptosis change were detected after 24 h.The role of JAMA in the NPC radiotherapy was understand.The related signal pathway protein in cell lines with different JAMA expression was detected by Western blot.Results The cell lines with low JAMA expression were more sensitive to radiotherapy:After low JAMA expression,the D0 value in the CNE2 cell line was decreased from 3.26 ±0.78 to 1.92 ± 0.23;the Dq value was decreased from 46.51 ± 4.27 to 32.12 ± 3.19.The radio therapy induced apoptosis was significantly increased in the cell lines with low JAMA expression,after low JAMA expressing,thcellular apoptosis was elevated from 6.9 ％ ± 0.9 ％ to 13.7 ％ ± 1.3 ％;the HONE1 cellular apoptosis was elevated from 6.5 ％ + 1.1 ％ to 12.3 ％ ± 1.7％;JAMA overexpression cell lines were significantly decreased.The preliminary mechanism research results showed that JAMA played the effect via Akt signal pathway.Conclusion This research results verifiy that JAMA expression level is closely correlated with the radiosensitivity of NPC cell line:JAMA can increase the radiotherapy resistance of NPC cell lines,which provides a new feasible research direction for NPC enhancing radiosensitivity.

Objective To identify the role of miR-124 in regulating the radiosensitivity and the epithelial-mesenchymal transition (EMT) of nasopharyngeal carcinoma (NPC). Methods Transient transfection of cells with miR-124 mimic or inhibitor was performed and wound-healing assay was used to investigate the role of miR-124 in the EMT of NPC. The apoptosis affected by miR-124 was also measured after irradiation , followed by investigating the cell proliferation by EdU assay. Finally , proteins of Akt and ERK associated with EMT and radiosensitivity, were measured by western blot. Results The migration index from NPC cell line indicated that miR-124 repressed the EMT. The results from caspase-3 activity assay showed that caspase-3 activity after irradiation significantly increased in miR-124 mimic group compared with the control group (P < 0.01). It was also confirmed that irradiation led to a higher percentage of apoptosis in miR-124 group compared with the control group in NPC cells. Cell proliferation after irradiation was significantly decreased in MiR-124 group as compared with control group . MiR-124 inhibited the protein expression of p-Akt . Conclusion MiR-124 may repress the EMT and decrease radio-resistance of NPC via p-Akt signaling pathway , which may provide a new insight into radio-resistance in NPC.

Objective The internationalization of modern scientific research and its high degree of complexity have showed the importance of scientific research cooperation.How to promote cooperation more effectively is an important research topic.Methods This article analyzes the research cooperation of Institute of Hematology & Blood Diseases Hospital Chinese Academy of Medical Sciences during the past 12 years.Results Scientific research cooperation is a big trigger for the output of papers,especially high-level output,international and native institutions' cross-cooperation can be used as an important way for expanding scientific research cooperation and provides a reference for decision-making.Conclusions Strengthen the awareness of cooperation,increasing scientific research funding,establishing common and hot research directions and constructing highlevel platform can expand scientific research cooperation.