CD47 is a pluripotent molecule which plays a key role in the process of tumor immune escape.Blocking CD47 signal pathway can activate the macrophages to phagocytose tumor cells,which becomes a promising way for tumor immunotherapy.Monoclonal antibodies targeting CD47 have been the new focus during recent years.Present researches are carried out successfully,however it still needs more work before the clinical application of monoclonal antibodies targeting CD47.

Background and purpose:Parotid gland is rich in fat and has obvious contrast with bone and muscle in CT image.The preoperative examination of CT could help to evaluate the scale of tumor invasion and the relationship between tumor and normal tissues so that the proper therapy could be properly designed.The purpose of this study was to evaluate the roles of computer tomography(CT)in differential diagnosis of benign and malignant parotid tumors and to improve the diagnostic accuracy.Methods:CT images of 17 patients with benign parotid tumors and 15 patients with malignant parotid tumors proved by pathology were analyzed retrospectively.All patients underwent CT contrast-enhanced examination preoperatively.Images of all patients were retrospectively reviewed by two experienced radiologists in the diagnosis of head and neck tumors.Results:14 of 17 cases of benign tumors had round shapes and 9 of 15 cases of malignant tumors exhibited lobular or irregular masses(P

Objective To evaluate the effects of smecta in prolonged hemorrhagic shock.Methods The modified Wigger's method was used to induce hemorrhagic shock in anesthetized rabbits.Twenty-nine rabbits were randomly divided into hemorrhagic shock group(n=14),smecta group(n=15),with smecta solution being administered via a gavage tube before shock.The plasma levels of endotoxin,tumor necrosis factor ?(TNF?),interleukin-6(IL-6) and nitric oxide(NO) were detected at pre-shock and post-shock,immediately after resuscitation and 2h after resuscitation.Blood culture was done at pre-shock,immediately after resuscitation,2h after resuscitation.The survival rates of 24h and 48h were observed.Results The plasma levels of endotoxin,TNF?,IL-6 and NO markedly increased after shock,and were maintained at high level in shock group (P

Objective To evaluate the effects of aminoguandine(AG) used as a selective inhibitor of the inducible isoform of nitric oxide synthase(iNOS) and L NAME used as a non selective inhibitor of nitric oxide synthase(NOS) on severe hemorrhagic shock Methods Forty rabbits were bled to mean arterial pressure of 4 4 66 kPa via femoral artery Hypotention was maintained for 120 min, the shed blood was then returned, followed by an infusion with Ringer′s solutions Animals were randomly divided into three groups: hemorrhagic shock group (n=14), AG group (AG 20mg/kg was infused intravenously ,n=14), L NAME group (L NAME 30mg/kg was infused intravenously with ,n=12) Plasma levels of endotoxin, tumor necrosis factor(TNF?) and nitric oxide (NO) were determined before and after shock, immediately after resuscitation and 0 5h, 2h, 4h after resuscitation The 24h and 48h survival rates were recorded Lung, intestine, liver and kidney tissues were obtained 48 h after shock for microscopic examination Results The plasma endotoxin, TNF? and NO levels markedly increased and were kept at high levels after shock Lower plasma levels of endotoxin TNF? and NO, less tissue damages and high survival rates were observed in AG group as compared with those in L NAME group and shock group Conclusions The endotoxin,TNF? and NO play an important role in the development of irreversible shock AG is beneficial in the treatment of hemorrhagic shock, while L NAME does not improve the outcome of shock

Objective To study the evaluation between the X-ray findings and ultrasound(US) manifestations of upper digestiveobstruction in infancy.Methods X-ray and US manifestations of 20 cases of infant with upper digestive obstruction proved by operationwere analysed respectively.Results In 20 cases,12 patients had pyloric stenosis,3 duodenal stresia,3 midgut malformation,2 hiatalhernia.Pyloric stenosis was diagnosed by X-ray in 11 cases,by US in 9,misdiagnosed by US in 1 case.Duodenal stresia was observed by X-ray and US in 2 cases separately,not observed by X-ray and US in 1 case separately.Midgut malformation was demonstrated by X-ray and US in 1 case separately,not demonstrated in 2 cases separately.Hiatal hernia was found by X-ray in 2 cases,misdiagnosed by US in 2 cases.Conclusion The two methods can't substitute with each other but complement.X-ray is better than US in the diagnosis of pyloric stenosis and hiatal hernia.US is better than X-ray in the diagnosis of midgut malformation.

Objective To observe clinical effects of Baixuan xiatare capsules combined with Baskin and compound Flumetasone on elderly patients with chronic eczema .Methods 160 elderly patients with chronic eczema were randomly divided into observation group and control group ,80 cases in each group , the observation group with XTR combined with Baskin , compound Flumetasone treatment , control group using Baskin combined with compound Flumetasone treatment for 4 weeks,the clinical efficacy was compared between the two groups .Results In the obser-vation group,the effective rate was 94.7%,the effective rate of control group was 82.1%,two groups have statistical significance with the efficiency difference (χ2 =5.862,P<0.05).Conclusion The XTR combined with Baskin and compound Flumetasone have better clinical effects than Baskin combined with compound flumetasone treatment with elderly patients with chronic eczema .

Objective: To observe the clinical efficacy of balancing acupuncture therapy in the treatment of chest pain following lung cancer. Methods: Twenty-four cases of primary bronchial lung cancer with chest pain were treated by balancing acupuncture therapy; the relief of chest pain and its relief time were observed. Results: Among the 24 cases undergoing balancing acupuncture therapy, the chest pain was absolutely relieved in 3 cases, partially relieved in 13 cases, lightly relieved in 4 cases and not relieved in 4 cases; the total response rate was 83.3%. In terms of the relief time, 9 cases responded to the balancing acupuncture therapy in 0-3 min, accounting for 37.5%; 5 cases responded in 4-6 min, accounting for 20.8%; the average responding time was (4.85±1.45) min. Conclusion: Balancing acupuncture therapy is rapid-acting, safe, convenient and inexpensive in the treatment of chest pain following lung cancer.

Objective The lyophilized pilose antler water extract(PAE) was isolated,and their cell proliferation on PC12 cells was observed.Methods S-200 Size-exclusive gel and DEAE negative ion-exchange liquid chromatograph were employed to fractionate the PAE.SDS-PAGE was employed to analyze the proteins composition of PAE.The protein concentration was determined by Folin-Phenol assay.The proliferation rates of PC12 cells were measured by MTT assay.Results The proliferation rate of PAE on PC12 cells at 13.3 mg/mL was 47%(P

Objective:To explore a new method of whole-process digital esthetic prosthodontic rehabilitation combined with periodontic surgery for complicated anterior teeth esthetic defects accompanied by soft tissue morphology,to provide an alternative choice for solving this problem under the guidance of three-dimensional (3 D) printing digital dental model and surgical guide,thus completing periodontic surgery and digital esthetic rehabilitation of anterior teeth.Methods:In this study,12 patients with complicated esthetic problems accompanied by soft tissue morphology in their anterior teeth were included.The dentition and facial images were obtained by intra-oral scanning and three-dimensional (3D) facial scanning and then calibrated.Two esthetic designs and prosthodontic outcome predictions were created by computer aided design/computer aided manufacturing (CAD/CAM) software combined with digital photography,including consideration of white esthetics and comprehensive consideration of pink-white esthetics.The predictive design of prostheses and the facial appearances of the two designs were evaluated by the patients.If the patients chose the design of comprehensive consideration of pink-white esthetics,they would choose whether they would receive periodontic surgery before esthetic rehabilitation.The dentition design cast of those who chose periodontic surgery would be 3D printed for the guide of periodontic surgery accordingly.Results:In light of the two digital designs based on intra-oral scanning,facing scanning and digital photography,the satisfaction rate of the patients was significantly higher for the comprehensive consideration of pink-white esthetic design (P ＜ 0.05) and more patients tended to choose priodontic surgery before esthetic rehabilitation.The 3 D printed digital dental model and surgical guide provided significant instructions for periodontic surgery,and achieved success transfer from digital design to clinical application.The prostheses were fabricated by CAD/CAM,thus realizing the whole-process digital esthetic rehabilitation.Conclusion:The new method for esthetic rehabilitation of complicated anterior teeth esthetic defects accompanied by soft tissue morphology,including patient-involved digital esthetic analysis,design,esthetic outcome prediction,3D printing surgical guide for periodontic surgery and digital fabrication is a practical technology.This method is useful for improvement of clinical communication efficiency between doctor-patient,doctor-technician and doctors from different departments,and is conducive to multidisciplinary treatment of this complicated anterior teeth esthetic problem.

OBJECTIVE:To provide reference for rational use of TCM injections. METHODS:Among the inpatients who used TCM injections in 4 hospitals of Shanghai Jiading district in 2013,100 cases were collected by systematic sampling in each hospital separately, and the data were analyzed retrospectively. RESULTS:The varieties and amount of TCM injections for blood-activating and stasis-resolving both occupied the first place. 22% inpatients used two or more TCM injections at the same time. The proportion of overdose use of TCM injections reached 54.55%. The type of unreasonable drug use mainly included drug use against differentiation of syndromes,super indications drugs and solvent error. Combined use of TCM injections with same ef-fect accounted for 20.45% of combined use of TCM injections. CONCLUSIONS:It is effective means to improve rational drug use that great impertance paid for clinical use of TCM injections.