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

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 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.

AIM: To evaluate whether tolerogenic dendritic cells (DC) loaded with heat shock protein 60 (HSP60) inhibit the progression of aortic atherosclerotic plaque in hypercholesterolemic apolipoprotein E (Apo-E) -null mice. METHODS: Bone marrow derived DC of the mice were loaded with HSP60 and co-cultured with rapamycin to generate tolerogenic DC. The tolerogenic DC, DC loaded only HSP60 and PBS were injected into the ApoE-null mice at 8 weeks of age for three times at a one-week interval. 8 weeks after the last injection, aorta were harvested for HE staining and anti-CD4~+T cell immunostaining. Responses of pleenic cells to HSP60 were also evaluated. RESULTS: Compared with DC, DC_ HSP60 expressed higher levels of CD86, and stimulated T lymphocytes to proliferation significantly, while the tolerogenic DC expressed lower levels of CD86, and inhibited T lymphocytes to proliferation. After immunization with different injection, the numbers of CD4~+ T cells in plaque were increased significantly in DC_ HSP60 group vs in PBS group (P

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.

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 observe the effects of aminoguanidine and vitamin C on serum laminin of rats with diabetic nephropathy model. METHODS: The rats were randomly divided into normal control group, diabetes model group, vitamin C group,aminoguanidine group,vitamin C plus aminogucinidine group. The diabetes model(Type 1) was established in all groups except the normal control group by injecting them intraperitoneally with streptozotocin, after which, they were treated with the corresponding drugs for 16 weeks. During and after the treatment, the general state, blood gloucose levels, glycosylated hemoglobin, serum laminin, urea nitrogen, serum creatinine, and the 24-hours urinary albumin excretion rate of each group were observed and determined. RESULTS: The serum laminin levels increased and diabetic nephropathy occurred in all the 4 groups after being modelled. Aminoguanidine group, vitamin C had no effect on blood glucose level, while they could improve the basic condition and the combination of the two could significantly decrease serum levels of laminin, urea nitrogen, creatinine and the 24-hours urinary albumin excretion rate. CONCLUSION: Aminogucinidine and vitamin C couldn't decrease the blood sugar level but the combination of which has a synergistic action to decrease serum laminin level while preventing renal function.

Objective:To explore a method of constructing universal 3-dimensional (3D)colorized digital dental model which can be displayed and edited in common 3 D software (such as Geomagic se-ries),in order to improve the visual effect of digital dental model in 3D software.Methods:The mor-phological data of teeth and gingivae were obtained by intra-oral scanning system (3Shape TRIOS),con-structing 3D digital dental models.The 3D digital dental models were exported as STL files.Meanwhile, referring to the accredited photography guide of American Academy of Cosmetic Dentistry (AACD),five selected digital photographs of patients’teeth and gingivae were taken by digital single lens reflex camera (DSLR) with the same exposure parameters (except occlusal views ) to capture the color data.In Geomagic Studio 201 3,after STL file of 3D digital dental model being imported,digital photographs were projected on 3D digital dental model with corresponding position and angle.The junctions of different photos were carefully trimmed to get continuous and natural color transitions.Then the 3 D colorized digital dental model was constructed,which was exported as OBJ file or WRP file which was a special file for software of Geomagic series.For the purpose of evaluating the visual effect of the 3 D colorized digital model,a rating scale on color simulation effect in views of patients’evaluation was used.Sixteen patients were recruited and their scores on colored and non-colored digital dental models were recorded.The data were analyzed using McNemar-Bowker test in SPSS 20.Results:Universal 3D colorized digital dental model with better color simulation was constructed based on intra-oral scanning and digital photography. For clinical application,the 3D colorized digital dental models,combined with 3D face images,were in-troduced into 3D smile design of aesthetic rehabilitation,which could improve the patients’cognition for the esthetic digital design and virtual prosthetic effect.Conclusion:Universal 3 D colorized digital dental model with better color simulation can be constructed assisted by 3 D dental scanning system and digital photography.In clinical practice,the communication between dentist and patients could be improved as-sisted by the better visual perception since the colorized 3 D digital dental models with better color simula-tion effect.