BACKGROUND: As a kind of filling material for wedge-shaped defects, GC Fuji Ⅸ glass-ionomer cement has arose more and more attention. However, the comparison of repair results between GC Fuji Ⅸ glass-ionomer cement and reinforced glass-ionomer cement are poorly understood. OBJECTIVE: To compare the clinical effect of GC Fuji Ⅸ glass-ionomer cement and reinforced gtass-ionomer cement for repairing wedge-shaped defects of old people. METHODS: Totally 80 teeth were randomly divided into 2 groups, and filled by GC Fuji Ⅸ glass-ionomer cement (experimental group) and reinforced glass-ionomer cement (control group), respectively. The clinical effect of 2 materials were evaluated on color match, edge density heterozygosity, restoration integrity, occurrence of secondary caries and pulp symptom at immediately, 3 months, 6 months and 1 year after placement. RESULTS AND CONCLUSION: The color match of the experimental group was better than that of the control group at 3 months, 6 months and 1 year after placement (P < 0.05); and the edge density heterozygosity of the experimental group was superior to the control group at 6 months and 1 year after placement (P < 0.05); in addition, the restoration integrity of the experimental group was surpass the control group at 1 year after placement (P < 0.05). It demonstrated that GC Fuji IX glass-ionomer cement is an ideal choice for wedge-shaped defects of old people, which exhibits superior effects to reinforced glass-ionomer cement in 1-year follow-up.

OBJECTIVE To explore the application of hydrogen dioxide hypothermic plasma sterilizing system(STERRAD 100S) in operating room,and study the cost.METHODS The cost of sterilizing endoscopic instruments in operating room was analyzed.And the method of using medical material was improved as follows: use the non-woven fabrics and transparent packing bags repeatly to increase the utilization efficiency of medical material.RESULTS Compared with the traditional method,the cost of sterilizing instruments by STERRAD 100S decreased 2-3 times,which brought much economic benefit.CONCLUSIONS 100S Can improve the working efficiency,reduce inventory level of endoscopic instruments and sterilizing cost,which can relief patient economic burden and ensure patient interest.

Objective To investigate the effect of predictive nursing on the living donor liver transplantation.Methods Forty patients undergoing living donor liver transplantation were divided into the intervention group and the control group with 20 patients in each group randomly.We gave routine nursing cooperation to the control group while predictive nursing besides routine nursing cooperation to the intervention group.The operation time,cold ischemia time of donor liver,nursing complication,cost of surgery and satisfaction degree of surgery cooperation were recorded.Results Compared with the control group,the operation time,cold ischemia time of donor liver,nursing complication,cost of surgery were all decreased,and the satisfaction degree of surgery cooperation was improved.Conclusions Predictive nursing can improve nursing operation quality,raise the efficiency of nursing and surgery,reduce the incidence of complication,which is beneficial to smooth progress of operation and increase satisfaction degree of doctors and nurses to nursing cooperation.

Objective To evaluate the effect of dexmedetomidine on the quality of recovery from anesthesia in the patients undergoing modified electroconvulsive therapy (MECT) with propofol anesthesia.Methods One hundred and ten patients of both sexes,aged 18-50 yr,weighing 45-80 kg,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,scheduled for elective MECT with general anesthesia,were randomly assigned into 2 groups (n =55 each) using a random number table:control group (group C) and dexmedetomidine group (group D).Dexmedetomidine was infused intravenously in a dose of 0.5 μg/kg (in normal saline 10 ml) over 10 min in group D,while normal saline 10 ml was infused intravenously over 10 min in group C.Propofol 1.5 mg/kg and succinylcholine 0.5 mg/kg were injected intravenously,and MECT was performed in the two groups.The emergence time was recorded.The development of cardiovascular events,nausea and vomiting,respiratory depression,headache,somnolence and agitation during recovery from anesthesia was recorded.Results Compared with group C,the incidence of nausea and vomiting,headache and agitation during recovery from anesthesia was significantly decreased (P＜0.05),and no significant changes were found in the emergence time,and incidence of hypertension,tachycardia,respiratory depression and somnolence during recovery from anesthesia in group D (P＞ 0.05).Conclusion Dexmedetomidine (intravenously infused in a dose of 0.5 μg/kg over 10 min before anesthesia) can raise the quality of recovery from anesthesia in the patients undergoing MECT with propofol anesthesia.

Objective To determine the risk factors for development of early acute renal failure (ARF) after orthotopic liver transplantation (OLT) in patients with normal renal function.Methods Sixty ASA Ⅱ or Ⅲ patients aged 28-64 yr weighing 35-88 kg undergoing OLT were studied.Their preoperative serum Cr and BUN were within normal range.Early ARF was defined as serum Cr≥132 μmol/L and/or BUN≥18 mmol/L within 24 h after operation.The patients were divided into 2 groups: ARF group and non-ARF group.Arterial blood samples and urine specimens were collected before induction of anesthesia for determination of blood β2-micreglobulin(β2-MG) and urinary β2-MG and N-acetyl-β-D-glucurenidnse (NAG). Factors including preoperative liver function,preoperative blood and urinary β2-MG,the amount of urine output and bank blood infused during operation,MAP during anhepatic and neohepatic phase,the amount of vnsoactive drugs and diuretics used during operation,hypotension and arrbythmia during operation were recorded.The risk factors were identified by logistic regression analysis.Results Logistic analysis indicated that serum β2-MG higher than normal value before operation and persistent hypotensien during operation were closely correlated with development of early ARF after OLT.Conclusion Serum β2-MG higher than the normal value before operation.and persistent hypotension during operation are the risk factors for early ARF after OLT.

Objective To study the effects of endothelin (ET) and Xuesaitong injection on hepatic, renal and myocardial tissues after bile duct ligation (BDL) in rabbits. Methods Seventy-two rabbits were randomly divided into three groups: BDL group (24 rabbits), BDL+Xuesaitong injection group (24 rabbits), and sham operation group (24 rabbits). Each group was subdivided into four subgroups of postoperative 3, 6, 9 and 12 d (6 rabbits in each subgroup). Automatic biochemical analysis equipment was used to detect the levels of serum TBIL, ALT, BUN and Crea. The levels of ET in plasma, hepatic, renal and myocardial tissues were measured with radioimmunological method. Results The levels of ET in plasma, hepatic, renal and myocardial tissues in both BDL group and BDL+Xuesaitong injection group were higher than those of sham operation group (P

Objective To evaluate the clinical efficacy of recombinat human brain natriuretic peptide (rhBNP) in the treatment of acute myocardial infarction (AMI) with heart failure in aged patients. Methods Totally 63 elderly patients with AMI and heart failure were randomly divided into therapy (29 cases) and control (34 cases) groups.Besides routine treatment,the therapy group received rhBNP in continuous intravenous infusion, while control group was treated with nitroglycerin.Both drugs were administered for 3-5 days.The dyspnea remission rates after treatment were recorded.At the same time,heart rates and blood oxygen saturation,left ventricular ejection fraction (LVEF) and left ventricular end diastolic volume (LVDD),serum interleukin 6 (IL-6) and high sensitivity C reactive protein (hsCRP) were recorded before and after treatment. Results The total effective rate after the treatment was 79.3 ％ (23/29) in therapy group and 64.7％ (22/34) in control group(P =0.017).The dyspnea remission rate was better in therapy group than in control group (P＜0.05).The heart rate,blood oxygen saturation,LVEF,hsCPR and IL-6 in therapy group were [(120± 11) times/min,(78 ± 6) ％,(28 ± 32) ％,(25.78 ± 2.44) mg/L,(40.74 ± 5.43) μg/L]before treatment,and after treatment [ ( 89 ± 9) times/min,( 97 ± 6 ) ％,(43 ±± 20) ％,( 12.78 ± 2.54 )mg/L,(28.45±2.34) μg/L] (all P＜0.05).The above indexes in control group were [(117±8)times/min,(80±8) ％,(29±31)％,(21.44±1.33) mg/L,(41.87±5.46) μg/L] before treatment,and after treatment[(109± 10) times/min,(34±18) ％,(43±20) ％,(17.63± 1.62) mg/L,(36.56±3.02) μg/L].The heart rate and the levels of IL-6 and hsCPR were reduced,blood oxygen saturation and LVEF were increased in therapy group than those in control group. Conclusions rhBNP is efficient in the treatment of elderly AMI with heart failure.

Objective To detect the plasma level of tissue factor (TF) in non-small cell lung cancer (NSCLC) patients,and to discuss its association with hypercoagulation,venous thromboembolism and prognosis of lung cancer.Methods Sixty-one impatients in our hospital with confirmed lung cancer were enrolled as the study group.Thirteen patients with benign pulmonary diseases and 14 healthy volunteers were selected as the control groups.Bseline and follow-up clinical data were collected from participants.Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of TF in plasma of all subjects.Results The levels of TF in plasma from NSCLC patients and participants with benign pulmonary diseases was significantly higher than that in healthy controls((550.88 ± 201.58) ng/L vs (510.77 ± 201.20) ng/L vs (178.34 ±66.73) ng/L,P ＜0.05).According to the plasma levels of TF,which have been detected in all subjects,the patients were divided into two groups:low level group (range from 103.73 ng/L to 476.22 ng/L) and high level group (range from 476.221 ng/L to 1003.00 ng/L).Statistical analysis showed that there was a positive correlation between plasma TF levels and TNM stages in NSCLC patients (P =0.026).Patient with metastasis had a higher plasma TF level than other patients (P =0.020).The log-rank test revealed that there was no significant difference in survival between the high level group and low level group (x2 =0.145,P =0.704).Multivariate Cox proportional hazards regression analysis indicated that plasma TF levels did not predicted for death(RR =1.001,95％CI0.998-1.004,P=0.452).Conclusion The plasma TF level in NSCLC patients was correlated with TNM stages;it had no significant relationship with hypercoagulation state and survival rate in NSCLC patients.Limitations should be aware of while evaluating the clinical course and prediction of prognosis of NSCLC patients using plasma TF levels.

Objective To investigate the effect of leptin (LEP) pretreatment on hypoxia-reoxygenation (H/R) induced apoptusis in human L02 liver cells. Methods Human L02 liver cells were obtained from pharmacology laboratory, Zhong-Shan University and cultured in DMEM liquid culture medium in an incubator filled with 5% CO_2 at 37℃. The cells were divided into 6 groups ( n = 6 each) : group control (group C) ; grouphypoxia-reoxygenation (group H/R); group Ⅰ-Ⅳ pretreatment with LEP 100, 200, 400 and 800 μg/L + H/R. In group H/R and group Ⅰ-Ⅳ L02 cells were exposed to 95% N_2-5% CO_2 for 12 h followed by 12 h reoxygenation. In group Ⅰ-Ⅳ the cells were pretreated with LEP 100, 200, 400, 800 μg/L respectively before H/R. At the end of 12 h of reoxygenation, the cells were centrifuged and the supematant was collected for determination of ALT and AST concentrations. Apoptosis in L02 cells was detected by Hoechst 33342/PI staining. Fluorescent quantitative PCR was used to detect Bax and Bcl-2 mRNA expression. Results (1) ALT and AST concentrations were significantly increased after H/R. The increase in ALT and AST concentrations was ameliorated by pretreatment with LEP. (2) The H/R-induced apoptotic changes of the cells were attenuated by pretreatment with LEP. (3) The Bax mRNA and Bcl-2 mRNA expression was significantly increased in group H/R as compared with group C. Leptin pretreatmcnt significantly reduced Bax mRNA expression and increased Bcl-2 mRNA expression as compared with group H/R. Conclusion LEP pretreatment can decrease H/R-indtwed apoptosis in the L02 liver cells by down-regulation of Bax mRNA expression and up-regulation of Bcl-2 mRNA expression.

Objective To investigate the serum levels of uric acid (UA) in bipolar disorder patients and their clini?cal significance. Methods Serum levels of UA was measured in 126 bipolar disorder patients including 77 mania pa?tients and 49 depression patients, 69 first-episode schizophrenic patients and 126 healthy controls (control group). Bipo?lar disorder patients was assessed by using the Young Mania Rating Scale (YMRS) and the Hamilton Depression Scale (HAMD). Results The serum UA levels were significantly higher in bipolar group [(349.34 ± 107.21) μmol/L] than in schizophrenic group [(319.71±84.48)μmol/L] and in control group [(280.94±71.90)μmol/L] (P<0.01). There were signifi?cant differences in serum UA levels between manic episode and depressive episode [(366.45 ± 104.01) μmol/L vs. (322.45±107.69)μmol/L]. The serum UA levels were higher in both manic episode and depressive episode groups than in control group (P<0.01). The serum UA levels was not significantly different between patients with and without medication (P>0.05). Correlation analysis indicated that the correlation of serum UA levels with YMRS scores and HAMD scores was not significant in bipolar disorder patients (P>0.05). Conclusions Patients with bipolar disorder has elevated serum uric acid levels which may be a biomarkers of bipolar disorder.