Objective:To investigate relationships between serum chemerin and bone mineral density (BMD) in patients with newly diagnosed Graves disease (GD).Methods:A total of 120 newly diagnosed GD patients with a course more than 3 months were enrolled from the Department of Endocrinology between June 2013 and June 2015.Sixty age-and sex-matched healthy people served as a normal control.Serum levels of chemerin,β-crosslaps (β-CTX),and N-MID-osteocalcin (N-MID-OT) were measured by ELISA.Fat mass and BMD were evaluated by dual energy X-ray absorptiometry (DEXA).Results:Compared with the normal control,the fat mass,lean weight,fat mass index (FMI) and body mass index (BMI) in the GD group were decreased,and BMD in all skeletal sites was decreased.There was a positive correlation between them (all P<0.05).Serum level of chemerin was increased and it was positively correlated with β-CTX or N-MID-OT level and negatively correlated with fat mass,FMI or BMI in the GD group.There was a negative correlation between chemerin level and BMD in femoral neck,total hip,lumbar or right forearm distal 1/3 (rs=-0.352,-0.279,-0.379,-0.289,-0.394;P<0.05).After adjusting for age,fat mass or BMI,the correlation of chemerin with total hip or bone mineral density remained significant (rs=-0.273,-0.378;P<0.05).Multiple linear regression analysis revealed that chemerin or BMI was correlated with BMD (P<0.05).Conclusion:The decrease of bone mineral density in patients with GD is not only related to the direct or indirect effect of excessive thyroid hormones on systemic and osteoblastic cells,but it is also related to the negative regulation of bone metabolism due to the elevated chemerin level.

Objective To investigate the protective effects of Ulinastatin on intestinal barrier damaged after cardiopulmonary resuscitation (CPR) in rats in order to illustrate the possible mechanism.Methods Twenty-one male SD rats were divided into three groups randomly (random number) including control group (sham group, n =7), cardiopulmonary resuscitation group (CPR group, n =7) and ulinastatin group (UTI group, n =7).The rats were anesthetized with pentobarbital sodium (45-60 mg/kg) by intraperitoneal injection.The rats of sham group were only treated with endotracheal intubation.Ulinastatin (100 000 U/kg) were injected via caudal vein 2 hours prior to CPR, and cardiac arrest was made in rats and cardiopulmonary resuscitation was carried out in the UTI group, while equivalent volume of sterile saline was used instead in the CPR group.Blood and ileum samples were obtained at 48 hour after restoration of spontaneous circulation (ROSC).The levels of tumor necrosis factor alpha (TNF-α) and interleukin-1β (IL-1β) were assayed by ELISA (enzyme-linked immunosorbent assay), the protein levels of caspase-3 were determined by western blot, the intestinal mucosa were stained by terminaldeoxynucleoitidyl transferase mediated nick end labeling (TUNEL) and ileac mucosa were observed under transmission electron microscope.Data were processed with SPSS 17.0 software.Results The plasma levels of TNF-α and IL-1β were dramatically higher in CPR group than those in other two groups (CPR vs.sham, P ＜ 0.01;CPR vs.UTI, P ＜ 0.05).Moreover, the tight junctions between cells obviously broadened and loosened in the CPR group were found under electron microscope, however, this phenomenon was not obvious in the UTI group.A large number of apoptotic cells were observed by TUNEL assay in the CPR group, but a small number of apoptotic cells were observed in the UTI group.The protein levels of caspase-3 in the UTI group were higher than those in sham group, but lower than those in CPR group (both P ＜ 0.05).Conclusions Ulinastatin has protective effects on the intestinal barrier damaged after cardiopulmonary resuscitation in rats by decreasing the proinflammatory mediators in the blood, reducing the expression of caspase-3and then reducing the numbers of apoptotic intestinal cells.

OBJECTIVE To investigate the positive rate of ?-lactamase,oprD2,aminoglycosides modifying enzyme and qacE△1 gene among clinical isolated strains of multi-resistant Pseudomonas aeruginosa in our hospital.METHODS P.aeruginosa was determined by VITEK,and MIC was determined by agar dilution method.TEM,IMP,VIM,oprD2,aac(3)-Ⅱ,aac(6′)-Ⅰ,aac(6″)-Ⅱ,ant(3″)-Ⅰ,ant(2″)Ⅰ and qacE△1 in strains were detected by polymerase chain reaction(PCR).RESULTS The positive rate of TEM,aac(3)Ⅱ,aac(6′)-Ⅱ,ant(3″)-Ⅰ and ant(2″)-Ⅰ in multi-resistant P.aeruginosa were 51.4%,48.6%,40.0%,54.3%,45.7% and 60.0%,respectively.No IMP and VIM genes were detected.CONCLUSIONS Positive rate of ?-lactamase, aminoglycosides modifying enzyme is high in 35 tested strains,and that should be paid more attention.

Objective To preparegraphene quantum dots (GQDs) and construct a novel biosensor for determination of dopamine (DA) and uric acid (UA).Methods The GQDs was prepared by carbonization method from citric acid as carbon sources.Differential pulse voltammetry was used by the modified electrodes to detect uric acid and dopamine,and the detection performance was evaluate.Collected three experimenters morning urine on July 29,2016.The proposed sensor was used for biological samples detection.Results The size of GQDs were between 3 to 5 nm,which was observed by transmission electron microscopy (TEM).The proposed sensor had good linear correlation of 50～600 μmol/L UA (r2 =0.996 6) and 2～ 240 μmol/L DA (r2 =0.992 5).In uric acid in urine samples' detection (n=3),RSD value was less than 3％.The standard addition recovery rates of UA and DA were in 95.7％～101.4％ and 96％～102％ respectively.Conclusion The biosensor based on GQDs for determination DA and UA had been constructed successfully.

OBJECTIVE:To study the compatible stability of Levofloxacin with Tinidazolc in Glucose Injection.METHO-DS:The contents were determined by UV-spectrophotometry and the appearance and pH value were observed within 8h after mixing of levofloxacin with tinidazolc in glucose injection at room temperature(20℃).RESULTS:The contents,pH value and appearance of the mixed solution showed no significant changes within 8h.CONCLUSION:The mixture of the levofloxacin and tinidazolc in glucose injection can be used within 8h after mixing.

OBJECTIVE:To prepare dexamethasone acetate borneol cream and to establish its quality control method.METHODS:Dexamethasone acetate borneol cream was prepared by grinding method;dexamethasone acetate and phenol were identified by TLC,and the content of the principal agent was determined by ultraviolet spectrophotometry.RESULTS:The prepared cream fitted the description of China Pharmacopeia(2005 edition) in identification and tests etc.The linear range of dexamethasone acetate was 12.06～28.14 ?g?mL-1(r=0.999 7),and the average recovery rate of 98.52%(RSD=0.66%).CONCLUSION:The preparation is reasonable in compounding,simple and feasible in techniques,and its quality is stable and controllable.

Antipsychotic Agents ; poisoning ; Clozapine ; blood ; poisoning ; Exchange Transfusion, Whole Blood ; methods ; Humans ; Infant, Newborn ; Male ; Treatment Outcome

Nerve growth factor(NGF) was firstly discovered as a member of neurotrophin family,and the research and development of NGF has been lasting more than fifty years since its discovery.To this end,a two-step and high –yield chromatographic method which consists of cation ion-exchange chromatography and reversed-phase chromatography was reported to isolate recombinant human beta nerve growth factor(? –NGF) secreted by constructed Chinese hamster ovary cells(CHO/dhfr-) from the culture media.Through the process of purification,the purity of protein which was determined by SDS-PAGE and RP-HPLC has reached to 95%,and the recovery of ? –NGF routed by RP-HPLC could be 70%.Furthermore,the biological activity of final purified protein evaluated by PC12 cells and dorsal root ganglia(DRG) exhibited the same performance as the standard protein of ? –NGF bought from Sigma,which indicated that there is no loss of biological activity through the isolation process.The conclusion suggested that an economical isolation method of recombinant human ? –NGF could be practiced on the industrial process of purification.

Objective To observe the effect of using Ambroxol hydrochloride(AM)to wash respiratory way to treat neonatal respiratory distress syndrome(NRDS) in ventilator,to explore dynamic changes of respiratory mechanics after using AM to wash respiratory way.Methods Thirty premature infants were chosen according with diagnosis criterion,which were randomly divided into 2 groups: NS group(n=15);AM group(n=15).Both NS and AM groups were treated with Babylog 8 000 ventilator,and routine treating and nursing,NS group was given for washing respiratory way in NS group,whereas AM was done in AM group.Pulmonary compliance(C),time constant(Tc),respiratory resis-tance(R),C20/C and minute volume(MV)were observed in both groups.Blood gas was routinely checked after 1 h ventilation treatment,and X ray was shot after 24 h.Results Pulmonary C significantly increased in weaning than that of beginning ventilation(P0.05),MV significantly increased in group AM than NS,respectively[(0.56?0.12) L/min and(0.35?0.11) L/min(P0.05).But ventilator-treating-time was markedly shorter in group AM than NS,respectively(60.52?6.23) h and(98.21?5.82) h(P

Objective To investigate the suppression effect, the apoptosis and TGF-β_1 mRNA expression of rhDCN and dororubicin(ADM) on leukemic K562 cell line. Methods K562 cells in Logarithmic growth phase were divided into Saline group, pcDNA3.1 (+)-DCN group, ADM group, and pcDNA3.1 (+)-DCN-ADM group. Morphology change of cell was detected by Wright stain, cell proliferation activity was assessed by MTT. The apoptosis index of K562 cells was assessed by FCM, and TGF-β_1 mRNA of cell was assessed by RT-PCR. Results Wright stain showed that more pronounced morphological apoptosis changes of K562 cells in combined group. MTT method results showed that the proliferation inhibition rate of the combined group was (61±1.32) % higher than that of individual intervention group [DCN group, (20±1.90) %; ADM group, (47±1.04) %](P <0.05). FCM results showed that the apoptosis index of the combined group was (61.30± 0.9) %, higher than that of Individual intervention group [DCN group, (28.25±1.3) %; ADM group, (31.85± 1.5) %](P <0.05). TGF-β_1 mRNA synthesis of combined group was significantly decreased. Conclusion rhDCN can markedly enhance cytotoxicity of ADM on K562 cells, and the mechanisms of apoptosis may be due to down-regulation of TGF-β_1 mRNA. Specific mechanisms will be further studied.