Objective To analysis the relationship between blood homocysteine concentration in diabetic retinopathy patients with vascular endothelial cell damage and platelet activation.Methods 80 type 2 diabetes mellitus(T2DM)patients,including 50 no diabetic retinopathy(NDR group)and 30 diabetic retinopathy(DR group)and 30 normal controls were selected to measure the concentration of Hcy as well as circulating endothelial cells(CEC),Endothelin(ET),Yon Willebrand(vWF)and platelet activation markers CD62p and CD63.Results The level of CEC,ET,vWF,CD62p,CD63 and Hcy in T2DM group were,distinctly higher than those of control(P＜0.01),furthermore,the level of these markers in DR group were also higher than that in NDR group(P＜0.01).Blood CEC level Was positively related with ET(r=0.839,P＜0.05),and the same relationship was found in Hcy and CEC(r=0.615,P＜0.05),ET(r=0.642,P＜0.05),CD62p(r=0.623,P＜0.05)and CD63(r=0.542,P＜0.05).Conclusions High blood Hcy,CEC,ET,vWF,CD62p and CD63 level were tighdy related with DR.High level of Hcy,vascular endMermis cell damage and platelet activation maybe play an important role in the pathogenesis of DR.

Objective Research of chromosome’s influence and curative effect on first and second generation tyrosine kinase inhibitor therapy to CML patients.Methods Giving conventional genetic analysis to 80 Ph+ CML patients,and contrast CML patients’chromosome changing situation with first and second generation tyrosine kinase inhibitor therapy.Results There were 1 1 cases with other abnormalities of chromosome number and structure in 80 cases of Ph+ CML patients,and 10 cases were resistant or intolerant to imatinib.35 patients (87.5%)achieve sustained complete cytogenetic remission (CCyR)who treated with imatinib (TKI-Ⅰ)in the total 40 cases,in these 35 patients,7 cases (17.5%)got CCyR in 3 months;10 cases (25%)got CCyR in 6 months,13 cases (32.5%)got CCyR in 12 months,and 5 cases (12.5%)got CCyR in 18 months.33 patients (82.5%)achieve sustained completecytogenetic remission (CCyR)who treated with dasatinib/nilotinib (TKI-Ⅱ)in the total 40 cases,in these 33 cases,16 cases (40%)got CCyR in 3 months;9 cases (22.5%)got CCyR in 6 months,5 cases (1 2.5%)got CCyR in 1 2 months,and 3 cases (7.5%)got CCyR in 1 8 months.Conclusion Ph+ CML patients combined with other chromosome abnormity were more easily to be resistant or intolerant to imatinib,espe-cially in acceleratd phase and blastic phase.First and second generation tyrosine kinase inhibitor have little difference to treat with CML patients in long time efficacy,but the second generation effect is better than first generation in short time effica-cy.

Primary biliary cirrhosis (PBC) is considered to be an autoimmune liver disease. Its etiology is unknown. Pathogenesis of PBC is associated with many aspects such as genetic factors, environmental factors, independent activity of target antigen, T-cell autoreactive immune responses and so on. Recently, new materials that involved in the morbidity of PBC have been identified constantly. Antimitochondrial antibodies (AMA) are characteristic of PBC. In particular, AMA-M2 is highly positive for the serological diagnosis mark of PBC. At present, treatment still cannot be for the etiology of PBC. Symptomatic treatment and support treatment are main measures. Ursodeoxycholic acid (UDCA)is the only one recognized medication with specific effect on the PBC. At present, the liver transplant can increase the survival rate and extend their survival time for end-stage of patients with PBC. This article emphasis on the progress of pathogenesis and treatment of the PBC are reviewed to explore research.

Collateral circulation may be a potential therapeutic target for ischemic stroke.However,aiming at improving the treatment of collateral circulation,it has not yet got the reliable clinical validation now.Therefore,undergoing the study of collateral circulation first in the animal models of chronic cerebral hypoperfusion has important practical significance.This article reviews the methods of rat chronic cerebral hypoperfusion models,neurobehavioral evaluation,cerebral perfusion assessment,collateral circulation pathways,and the experimental research status of improving collateral circulation.

Pediatric quality of life inventory is a tool to evaluate the quality of pediatric life,which stemmed from the abroad,so it is necessary to introduce and apply it.This paper introduced the origin and the frame of pediatric quality of life inventory,and summed up the research status with the help of experience at aboard,so as to provide reference material for assessing pediatric quality of life and increasing the level of health at home.

Objective To evaluate the effect of dexamethasone on lumbar plexus combined sciatic nerve block (CLPSNB). Methods Sixty patients were randomly allocated into three groups with 20 cases each. Guided by a nerve stimulator,CLPSNB was performed with 0. 5% ropivacaine 45 ml plus dexametbasone 10 mg in group A,0. 5% ropivacaine 45 ml plus normal saline(NS) 2 ml and dexametbasone 10 rng Ⅳ. in group B,or 0. 5% ropivacaine 45 ml plus NS 2 ml in group C. ResultsThe durations of sensory and motor blockade in group A were [(15. 2 ± 3. 3)h and (12. 6 ± 2. 8)h], respectively, which were significantly longer than [(10. 1 ± 2. 1)h and (7. 9 ± 1.6)h]in group B and [(10. 4±2. 5)h and (7. 6±2. 3)hi in group C(P<0. 05). Conclusion Dexarnetbasone added to 0. 5% ropivacaine significantly prolonges CLPSNB.

Anti-Inflammatory Agents ; therapeutic use ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Ear Cartilage ; Female ; Humans ; Integrative Medicine ; methods ; Middle Aged ; Panniculitis ; complications ; drug therapy ; Phytotherapy ; Polychondritis, Relapsing ; complications ; drug therapy ; Prednisone ; therapeutic use ; Treatment Outcome

Objective To observe of different facemask pressure controlled ventilation yongon gastric insufflation evaluated by ultrasound in infants during anesthesia induction.Methods Sixty ASA Ⅰ infants aged 1-3 yr,undergoing elective surgery,were randomly assigned to three groups ac-cording to facemask ventilation pressure:10 cm H 2 O (P10),1 5 cm H 2 O (P1 5 )and 20 cm H 2 O (P20)with twenty in each group.Infants were injected with propofol 2 mg/kg,fentanyl 0.002 mg/kg,cis-atracurium 0.1 5 mg/kg for general anesthesia induction until consciousness lost,then face-mask pressure controlled ventilation was applied for 120 s.Some respiratory parameters (SpO 2 , PET CO 2 )were recorded at the time of loss of consciousness (T0 )and after facemask pressure con-trolled ventilation for 30 s(T1 ),60 s(T2 ),90 s(T3 ),120 s(T4 )and after tracheal intubation(T5 ). The cross-sectional transverse and longitudinal diameter and area were measured respectively using ul-trasound at T0 and T4 .Results In all groups,SpO 2 was greater than or equal to 99% at all time points.PET CO 2 at T1-T5 was significantly higher than that at T0 and PET CO 2 at T5 was higher than that at T4 in all three groups.There were statistically significant increases in the values of the antral cross sectional area before and after facemask pressure controlled ventilation in group P20 (P <0.05). Conclusion During anesthesia induction in infants,1 5 cm H 2 O facemask ventilation pressure can guarantee adequate ventilation,and avoid gastric insufflation.

OBJECTIVE To explore the scientific and standardized experience of blood purification center of infectious diseases hospital in the hospital infection management.METHODS The development of its experience was summed up.RESULTS Sound system,wide range of focused training,as well as hospital infection in day-to-day management basis,and establishment and improvement of the incident management were carried out to control the nosocomial infection.CONCLUSIONS Correct system and norms,stringent measures and continuously updating the concept of nosocomial infection can effectively improve the management of hospital infection.

BACKGROUND:Although the preparation of bone tissue engineering scaffolds can achieve satisfactory results by solvent casting/particulate leaching, in situ molding method, electrospinning, phase seperation/freeze drying, gas foaming, there are stil some deficiencies in the accuracy, pore uniformity, spatial structure complexity, personalized stents. ＜br> OBJECTIVE:To prepareβ-tricalcium phosphate bone tissue engineering scaffolds using 3D printing. ＜br> METHODS:Drug-loadedβ-tricalcium phosphate scaffolds were prepared with 3D printing, and the structure was observed to measure its porosity and mechanical strength. The scaffold was immersed in simulated body fluid for 15 weeks to observe the quality change. The scaffold was co-cultured with rat bone marrow mesenchymal stem cells for 7 days to observe celladhesion and morphological changes. Rat bone marrow mesenchymal stem cells were cultured in extracts of drug-loadedβ-tricalcium phosphate scaffold and low-glucose Dulbecco's modified Eagle’s medium containing 15%fetal bovine serum for 24, 48, and 72 hours, to determine the absorbance values and cytotoxicity grading, respectively. Meanwhile, the cells were subjected to osteogenic culture for 1 week, and ＜br> the alkaline phosphatase activities in two groups were detected. ＜br> RESULTS AND CONCLUSION:The prepared scaffold showed irregular micropores, high porosity, uniform pore distribution, high pore connectivity rate, and large compressive strength. The drug-loadedβ-tricalcium phosphate scaffold degraded completely with 15 weeks, and cancellous bone defect repair was completed in the same period. Rat bone marrow mesenchymal stem cells adhered to the surface of drug-loadedβ-tricalcium phosphate scaffold and went deep into the scaffold, showing good growth and proliferation. The activity of alkaline phosphatase was also improved. These findings indicate that the drug-loadedβ-tricalcium phosphate scaffold has good biocompatibility.