Objective: To study the influences of electrolytic voltages on chromatics of anodized titanium. Methods:Titanium specimens were anodized in 0.5 mol/L sulfuric acid and 0.2 mol/L phosphate acid electrolyte using different voltages. The colors of anodized titanium were measured with a computer controlled spectrophotometer, and then evaluated in the CIE1976L*a*b* uniform color scale and Mussell notation. Result: One given volt created one distinguished color. The chromatic values expressed in L*a*b* were fluctuated in different voltage conditions. The hues in Mussell notation were distributed widely within R,Y,G,P of 5 basic colors and YR,GY,BG,PB of 5 interspace colors in the range of 5 to 80 volts. Anodizing with 10 or 45 volts, the specimen's colors appeared two kinds of brilliant goldish yellow, the former reddish slightly and latter greenish a little. The spectrums of the two colors were in the range of wavelengths of yellow to red. Conclusion: The color of the anodized titanium is dependent upon the volts applied. The goldish yellow may be used to improve the esthetics of titanium dentures.

Objective To understand the prophylactic use of antimicrobial agents in the patients undergoing I incision surgery from 2011 to 2013 in a tumor hospital,to explore the the effects of intervention management measure for antibacterial agents using in the perioperative period.Methods The cases of tumor surgical patients of 2011-2013 were selected and divided into the three intervention groups and non-intervention group.The data of medication after three-stage continuous integrated intervention were collected and compared.Results The percentage of antibiotics use was much lower,from 61.73%pre-intervention to 47.03%,26.78%and 24.85%after three stage intervention. The course of preventive medication treatment was significantly decreased from 81h to 53h,33h,21h,respeetively.The reasons of their rationally utilizing antibiotics were significantly improved after intervention management.Conclusion Rational antibiotics utilization can be improved by intervention management during perioperative period of typeⅠinci-sion operations,which can achieve the goal of health department.

Objective To systematically assess the efficacy of memantine on moderate to severe Alzheimer's disease (AD).Methods With the evaluation method of the Cochrane system,searches were made in the Cochrane Library,MEDLINE,Embase,Forest Laboratories,CNKI,Wanfang Data,and VIP Data up to February 2013 for double blind,randomized,and placebo-controlled trials (RCTs) evaluating the efficacy of memantine for moderate to severe AD.A meta-analysis of included clinical trials was conducted using the Revman 5.2 software to evaluate the efficacy of memantine on overall clinical status,cognitive function activities of daily living,and behavioral and psychological disturbances.Results A total of 8 RCTs were included (2 527 patients with moderate to severe AD).Results of the meta-analysis showed that,for patients with moderate to severe AD,memantine had better efficacy than placebo on overall clinical status,cognitive function,and activities of daily living (MD=-0.24,95％CI:0.340.15;SMD=-0.26,95％CI:-0.340.18;SMD=-0.13,95％CI:-0.21-0.05),but there was no significant difference in efficacy on behavioral and psychological function between memantine and placebo (P =0.08).Analysis of subgroups showed that memantine had better efficacy than placebo on cognitive function in moderate AD patients (SMD =-0.22,95％CI:-0.37 0.06) and on overall clinical status,cognitive function,and activities of daily living in severe AD patients (MD-0.29,95％CI:-0.40 0.18;SMD=-0.31,95％CI:0.46-0.15;SMD=-0.16,95％ CI:-0.25 0.06;MD=-3.13,95％ CI:-4.88-1.39;respectively).Conclusions Memantine has efficacy on overall clinical status,cognitive function and activities of daily living in patients with moderate to severe AD,especially in patients with severe AD.

OBJECTIVE:To investigate the characteristic and regularity of antineoplastics-induced ADR,and to provide refer-ence for safety use of antineoplastics in clinic. METHODS:In retrospective study,309 cases of antineoplastics-induced ADR col-lected from a special hospital during Jan.-Dec. 2015 were summarized and analyzed statistically. RESULTS:Among 309 ADR cas-es,female (58.25％) was more than male (41.75％). The patients aged more than 40 years old occupied the highest proportion (78.64％). Main route of administration was intravenous dripping(94.82％). There were 225 cases of severe ADR(72.82％). To-tal 268 cases were improved after drug withdrawal or treatment(86.73％). A total of 24 kinds of antineoplastics were involved in 309 ADR cases;most of ADR were induced by docetaxel,followed by cisplatin,cyclophosphamide. Most common organs/system involved in ADR was hemopoietic system (64.24％),main clinical manifestation was myelosuppression. CONCLUSIONS:It is necessary to strengthen ADR monitoring,prevent,discover and treat antineoplastics-induced ADR timely,in order to reduce the harm to the patients and ensure the safety and effectiveness of drug treatment.

Objective To investigate UV- or heat-inactivated Epstein-Barr virus(EBV)stimulating the production of anti-keratin autoantibody(AK auto Ab)in cultured human umbilical cord blood B cells. Methods Mononuclear cells were isolated routinely from umbilical cord blood, in which monocytes, NK cells and cytotoxicity T cells were eliminated by L-leucine methyl ester method, and T cells were removed by sheep red blood cells(SRBCs)treated with 2-amino ethyl-isothiouronium bromide (AET). The purified B cells were treated with UV- or heat-inactivated EBV respectively and then cultured in complete IMDM. CD5, CD3, CD4 and CD8 cells were detected by flow cytometry. IgG and IgM of AK auto Ab were measured by ELISA in the supernatant which came from the B cells treated by UV-inactivated EBV or EBV-transformed B cells respectively. Results In UV-inactivated EBV group CD5+B cells accounted for 43% and 47% of all cells detected on the 14th and 28th day, respectively. No CD3, CD4 and CD8 cells were detected during this period. In UV-inactivated EBV group the AK auto Ab of IgG and IgM increased significantly on the 18th and 26th day, respectively (P 0.05). On the 40th day the AK auto Ab of IgG and IgM were significantly higher in EBV-transformed B cell group than those in UV-inactivated EBV group. Conclusions UV-inactivated EBV is able to induce AK auto Ab production but heat-inactivated EBV does not, which suggests that EBV protein might be the effective agent in inducing the production of AK auto Ab.

Objective To investigate the relationship between activation of gliacytes , mitogen-activated protein kinase (p38MAPK) and neuronal apoptosis after microinjecting aggregated Aβ25-35 into hippocampus.Methods The model was established by using stereotaxic technique to inject 10μg aggregated Aβ25-35 into dorsal hippocampus in rats .The rats were grouped as the control , vehicle and model groups .Immunohistochemistry and Western blotting were used for detection of activation of microglia(MG), atrocytes (AS) and expression of p-p38MAPK in the hippocampus.ELISA was used to evaluate the level of TNF-αand IL-1β.The survival neurons were observed by Nissl staining and the apoptotic neurons were identified by tunnel staining .Results Expression of ox-42, GFAP, p-p38MAPK were up-regulated in hippocampus, as well as TNF-α、IL-1β, which reached a highest value on the 7th day after injection of Aβ25-35.However, the number of neuron with Nissl positive decreased gradually , and the tunnel positive neurons increased highly and reached a peak value on the 7th day.There were significant differences between the control and vehicle group ( P <0.01). Conclusion Apoptosis of the neuron caused by Aβ25-35 injection may result from activation of gliacytes , p38 MAPK and increase of TNF-αand IL-1βlevel.

OBJECTIVEA remote wireless electrocardiogram (ECG) monitoring system is designed by using the CC2530 micro-controller as the device core.

METHODSAcquisition, conversion and data processing for ECG signals are realized on CC2530 micro-controllers. And the ECG data is transmitted to the coordinator by using ZigBee. It realizes the real-time monitoring of ECG signals and heart rate variability (HRV) data.

RESULTSThe test results show that the maximum error of the designed ECG monitoring analyzer is 3 beats per minute and the average error is 1.6 beats per minute, which can meet the requirement of pharmaceutical industry standards of the People's Republic of China.

CONCLUSIONSThe ECG monitoring analyzer has good portability, high measurement precision and good practical application values.