The fluorescence characteristics of reaction products of sparfloxacin with halide (F, Cl, Br, I) have been studied. It was found that sparfloxacin was oxidized by nitrous acid then reacted with halide further to formstrong fluorescence substances in acid media. Their fluorescence intensitites enhanced with aggrandizing of atom radii of halides, which could emit the strong fluorescence 58～151 fold more than that of sparfloxacin itself. Thus a new sensitive method for the direct determination of sparfloxacin in human urine by derivative-synchronous fluorescence was presented. A plausible mchanism was proposed to explin this behavior.

Purpose:To evaluate the accuracy of diagnosing the gastrointestinal vascular malformation and the value of treatment of the hemorrhage of the interventional radiology.Materials and Methods:The superior mesenteric arteriography or/and the inferior mesenteric arteriography or arteriography of coeliac axis were performed by applying Seldinger's techniques in 22 cases with the gastrointestinal bleeding which were suspicous of the gastrointestinal vascular malformation,otherwise were negative or equivocal in di- agnosis by performing with non-interventional study.Results:Focci were detected in 31 arteriographies (22 cases)with the positive gastrointestinal vascular malformation.Operative treatment were performed in 14 of 22 cases,with confimation of the vascular malformation pathologically.Conclusion:The se- lective coeliac arteriography may be a reliably unique method in detection of the gastrointestinal vascular malformation.

Objective:To investigate the recognition degree and attitude to adverse drug reaction (ADR) reports among the healthcare professionals in our hospital.Method:Through random cluster sampling,the doctors,nurses and pharmacists in our hospital were interviewed on the spot.The questionnaires were input by EPI6.04 and analyzed by soft- ware SPSS11.5.Result:1077 eligible questionnaires were obtained and the recovery was 89.8%.Our bealthcare profes- sionals had a good recognition of basic ADR knowledge.The pharmacists had a better recognition degree than doctors and nurses.The better academic background the healthcare professionals had,the higher their score of recognition was,and there was a significant difference among them.There was no significant difference among the Scores of the healthcare profes- sionals with different working years,and nor was there among the scores of them with different professional titles.The atti- tude to ADR reporting was entirely right,but there were some wrong ideas.Conclusion:It is urgent to provide more train- ing courses for healthcare professionals so as to raise their consciousness of ADR reporting,ability of discrimination and lev- el of monitoring and avoid serious consequences caused by ADR.

0,most symptoms of ADR were reported for the first time with the homogeneous literature ratio being 0.The predominant outcome of severe ADR were hospitalization or delayed hospitalization course,followed by increased risk of death or patients' permanent or distinct disabling.CONCLUSION:New and severe ADR should be given close attention in the clinic to guard against severe ADR.

To ensure the sooth progression of resident standardized training, the Nineth Peo-ple's Hospital affiliated to Shanghai Jiao Tong University School of Medicine made the following explo-rations for structure organization and rule and regulation establishment: teaching staff construction , student recruiting procedures, training time, training plan and content, examination management and training quality control. It has played a promoting role for the construction and development of resident standardized training base.

Background Acute lymphoblastic leukemia (ALL) and chemotherapy can cause immune imbalance,and gaseous molecule hydrogen sulfide (H2S) can participate in the process of immune response.This study aimed to investigate the immune regulation of H2S in pediatric ALL.Methods Children (n=78) with ALL admitted during 2010-2013 were included in this study.Two blood samples were collected in period of before chemotherapy,bone marrow remission and two days after chemotherapy,respectively.Serum contents of H2S and cytokines,including interleukin-1β (IL-13),interleukin-2 (IL-2),interferon-γ (IFN-γ),tumor necrosis factor (TNF-α),interleukin-4 (IL-4),interleukin-6 (IL-6),interleukin-10 (IL-10) and macrophage inflammatory protein-1α (MIP-1a),were detected using ELISA method.Stepwise regression was used to analyze the correlation between H2S and cytokines.Furthermore,human Jurkat cells were cultured in vitro,and nucleoprotein of Jurkat cells and peripheral blood mononuclear cells (PBMCs) were collected,contents of cystathionine γ-lyase (CSE) and certain cytokines were measured by Western blotting.Results Serum concentrations of H2S,IL-13,IL-6,IL-10 and MIP-1α in children with ALL were increased significantly (P ＜0.01),while concentrations of IL-2,TNF-α,IFN-γ and IL-4 decreased obviously (P ＜0.01).In patients after chemotherapy,concentrations of H2S and IL-10 were decreased significantly (P ＜0.05),but IL-4 and IFN-γ concentrations increased markedly (P ＜0.05).At remission stage,H2S,IL-13,IL-4,IL-6,IL-10 and MIP-1α concentrations were further decreased markedly (P ＜0.05),but concentrations of IL-2,TNF-α and IFN-γ increased again (P ＜0.05).Protein contents of CSE,IL-10,IL-4 and IL-2 of PBMCs also increased markedly in children with ALL.Moreover,changes of CSE protein contents of PBMCs were consistent with serum H2S contents,and there were significant correlation between H2S and certain cytokines based on stepwise regression analysis.Furthermore,compared with those of PBMCs group,in vitro study indicated that Jurkat cells of H2S group expressed IFN-γ,IL-10,IL-4 and IL-2 protein increased obviously (P ＜0.05),while IL-4,IL-2 and CSE expression of PPG group decreased markedly (P ＜0.05).Conclusion Gaseous molecule H2S might participate in the process of immune regulation in pediatric ALL through modulating transcription and expression of cytokines.

Objective To study the changes of portal vein pressure before and after interventional embolization with α-cyanoacrylate alkyl and their clinical significance. Methods Thirty five patients with esophageal-gastric variceal bleeding were included. Esophageal-gastric fundal varices were embolized with e-cyanoacrylate alkyl in 35 patients, and 10 of them were treated with combination of partial splenic emblization. Portal pressure was measured directly before and after interventional embolization. The patients were followed up for 3-18 months. The changes of the liver functions and complications after the embolization were observed. Results All bleeding were controlled successfully. The main portal pressure in those who received variceal embolization only increased significantly from (32.54±5.23) cm H2O (1 cm H2O=0. 098 kPa) to (37.45±5. 11) cm H2O; superior mesenteric vein pressure increased from (31.46±4.35) cmH2O to (34.33±4.68)cm H2O; and the level of serum albumin raised from (30.45±5.78) g/L to (34.57±6.84) g/L 3 weeks after embolization. Whereas the main portal pressure in those who received both variceal and partial splenic embolizations, decreased significantly from (32. 68±4. 89) cm H2O to (28. 70±4. 58) cm H2O; superior mesenteric vein pressure decreased from (31.46±4.35) cm H2O to (28.03±4.12) cm H2O; and splenic vein pressure decreased from (32.89±4.79) cm H2O to (28.81±5. 12) cm H2O.Conclusions Esophageal-gastric variceal embolization is effective for varieeal bleeding. The increase of main portal pressure after embolization may be benefit for liver function, while the rise of superior mesenteric vein pressure may increase the risk of portal hypertensive gastrointestinal re-bleeding.Esophageal-gastric variceal embolization combined with partial splenic embolization may reduce the incidence of portal hypertension and gastrointestinal re-bleeding, but will increase the risk of ascites.

Objective To explore the feasibility and clinic outcome of the modified latissimus dorsi flap when it is used to repair huge soft tissue defects in lower limbs.Methods The latissimus dorsi muscle is rich blood supply and available for harvest huge areas.According to these characteristics the modified latissimus dorsi flap was designed:a limited latissimus dorsi skin flap with a large area of latissimus dorsi muscle flap,skin graft area was transferred from donor-site to recipient-site.From April 2009 to August 2011,ten patients with large soft tissue defects in lower limbs were treated with modified latissimus dorsi flap.The size of skin and soft tissue defects range from 19 cm × 10 cm to 32 cm × 16 cm.Ten modified latissimus dorsi flaps had been used for coverage of these wounds,which were amplified 1-2 cm compared with the corresponding wounds.The size of skin flap was 20 cm × 6 cm-33 cm × 10 cm which was allowable to get direct closure of donor-site wounds.Results All the flaps and skin graft survived completely with no complication.Donor-site and recipient-site were primary closed and healing in all patients.All of the patients had got follow-up from 6 months to 36 months.All flaps survived with excellent color and quality,and no extremely fat contour.The results in donor site were satisfying and only left liner scar.It has no effect in the shoulder function.Conclusion The modified latissimus doris flap can provide with a huge amount of skin and soft tissue and be designed in various ways.It is a safe and reliable way to reconstruct huge skin and soft tissue defect in lower limbs.

Objective To investigate the change of dynamic expression of t-PA and PAI-1 during early venous crisis after free perforator flap transplantation.Methods Thirty healthy New Zealand white rabbits weighed 2.5-3.0 kg were chosen and randomly divided into experimental group (n =15) and control group (n =15).Free transplantation of superficial epigastric artery perforator flap (SEAPF) was implemented in all rabbits firstly.Then the model of venous crisis was established by ligating the anastomosis vein in order to interrupt venous blood outflow in experimental group.The blood supply of all flaps was monitored by observing their color,swelling degree and the filling reaction of the capillaries after operation.Peripheral blood was drawn from femoral artery at different time point for measuring the concentration of t-PA and PAI-1 by Elisa.Partial flap tissue was harvested for pathological examination at corresponding time point.Data analysis was performed by using SPSS 17.0 statistical software.P ＜ 0.05 was considered statistically significant.Results One rabbit died of anesthesia,and the venous congestion was observed in 1 rabbit in control group.The models of free transplantation of SEAPF and venous crisis were established successfully in the remaining rabbits.No significant appearance change was observed within 1 h after the outflow vein being ligated,while typical appearance of venous crisis could be observed 2 hours after the outflow vein being ligated.Compared with the control group,the concentration of t-PA was lower,but the concentration of PAI-1 was higher in experimental group at 2 hours,4 hours,6 hours,8 hours after the outflow vein being ligated(P ＜ 0.05).However,there was no obvious differences between two groups at other time points (P ＞ 0.05).The pathological examination showed the red cells gradually got together and adhered to the venous wall,eventually the microcirculation had been blocked completely and theflap became necrosis after venous crisis being occurred.Conclusion t-PA and PAI-1 can't be used to diagnose early venous crisis of perforator flap transplantation.

Humans ; Serum ; chemistry ; Spectrophotometry, Ultraviolet ; methods ; Sulpiride ; blood