BACKGROUND:Titanium zirconium niobium tin al oy (Ti-Zr-NB-Sn al oy) has good tissue structure, mechanical properties, corrosion resistance and biocompatibility, which is an ideal dental material. OBJECTIVE:To explore the efficacy and safety of Ti-Zr-NB-Sn al oy in dental restoration. METHODS:A retrospective analysis was performed on clinical data of 87 cases of dental defects, including 43 males and 44 females, aged 22-41 years. Of the 87 cases, 43 cases were repaired with Ti-Zr-NB-Sn al oy as observation group, and the other 44 cases were treated with nichrome as control group. After 36 months of fol ow-up, the therapeutic efficacy, dental restoration conditions, dental prosthesis conditions and patient satisfaction were observed and compared. RESULTS AND CONCLUSION:Al the 87 patients were fol owed up for 36 months. After the fol ow-up, the total effective rate and patient satisfaction were higher in the observation group than the control group (P<0.05). In the control group, there were four cases of swol en gums, four cases of bleeding gums, four cases of al ergies, three cases of gum gray line, and six cases of mucosal pain;in the observation group, there was only one case of swol en gums, and the dental restoration was better in the observation group than the control group (P<0.05). For the dental prosthesis, there were 10 cases of dental stent damage and 20 cases of dental stent loosening in the control group;and only one case of dental stent damage and one case of dental stent loosening in the observation, and the observation group was superior to the control group in the dental prosthesis (P<0.05). Experimental findings suggest that Ti-Zr-NB-Sn al oy for repair of dental defects has good biocompatibility and security.

Objective To explore the influence of recombinant human erythropoietin(rhEPO) injection about nitric oxide(NO) and nitric oxide synthase(NOS) level in the brain and endothelin(ET) level in the blood after hypoxia-ischemia brain damage(HIBD) in neonatal rats,and elucidate the possible mechanism of the neuroprotective effect of rhEPO administered to the rat pup prior to cerebral hypoxia-ischemia.Methods Seven days-old SD rats were divided into control group,hypoxia-ischemia group(HI) and EPO group.NO activity,NOS level in the brain and ET in the blood were determined at 6 h after hypoxia-ischemia.Results NO and NOS levels in the brain and ET level in the blood were increased after HIBD in neonatal rats(P

Objective To study serum lipid levels in Uygur and Han nationalities in Urumqi of xinjiang, and their related risk actors. Methods Form 2004 to2007, 4 329 subjects were gathered from Urumqi Uygur and Han nationalities, all participants had a physical examination and serum lipid glucose test. Results The level of cholesterol and high density lipoprotein-cholesterol in Han nationality were significantly higher than Uygur. The levels of triglyceride, low density lipoprotein -cholesterol in Uygur were significantly higher than Han nationality. Hyperlipidemia in Uygur and Han nationality was affected by age (OR=1.377, 95%CI 1.144~ 1.659), body mass index (OR 1.56, 95%CI 1.386~1.756), and fasting glucose OR=1.386, 95%CI 1.15~1.67). Conclusion There were significant differences between Uygur and Han in the levels of serum lipids. Age, BMI and Fasting glucose also affected the serum lipid metabolism.

Brain ; metabolism ; pathology ; Child, Preschool ; Chromatography, High Pressure Liquid ; Diagnosis, Differential ; Folate Receptor 1 ; genetics ; metabolism ; Folic Acid ; blood ; cerebrospinal fluid ; metabolism ; Folic Acid Deficiency ; diagnosis ; drug therapy ; etiology ; Humans ; Infant ; Leucovorin ; therapeutic use ; Malnutrition ; complications ; diagnosis ; Tetrahydrofolates ; cerebrospinal fluid ; metabolism

Objective To observe curative efficacy of hepatocyte growth factor(HGF) in treatment of children with liver damage.Methods Two hundred and four children with liver damage were divided randomly into control group and teatment group.The control group was chosed energy compounds at the same time of primary disease was treated,on the basis of the control group,the treatment group was chosed HGF to protect liver and decline enzyme,to observe efficacy of liver shrink and decline enzyme in the course of treatment.Results After the treatment,alanine aminotransferase(ALT),aspartate aminotransferase(AST) and total bilirubin(TBIL) decreased significantly in the treatment group with HGF.The total clinical efficacy was 96.5%,while the total clinical efficacy of the control group was 75.0%.The curative efficacy of treatment group surpassed that in the control group,the difference was obvious(?~2=5.27 P

The concentration of airborne microbes in summer tourism season in Huangshan Scenic Spot was measured by fallen plate method at l4 collection sites. The study on the community structure and distribution characteristics of outdoor airborne microbes was carried out. The results showed that the average concentra- tion of the bacteria, fungi and total microbes in the outdoor environment were 0.41?104 CFU/m3, 0.34? 104 CFU/m3 and 0.75?104 CFU/m3 respectively, and the average percentage of fungi of the total was 45.9%. These indicated that the outdoor air had been polluted by airborne microbes. The preliminary identification was made on the bacteria and fungi at different sampling sites and the results showed that the dominant bac- teria mainly belonged to Bacillus, Staphylococcus, Micrococcus and Pseudomonas, and the average per- centage of the total amount of the bacteria was 37.7%, 17.2%, 10.1% and 9.8% respectively; the dominant fungi belonged to Cladosporium, Mycelia sterilia, Penicillium and Alternaria, and the average percentage of the total amount of the fungi were 40.4%, 35.0%, 5.6% and 4.3% respectively. The results indicated that thedistribution characteristics of air microbes are affected not only by topographical and climatic characteristics, but also by factors such as tourist activities, animals and plants.

Yersinia enterocolitica,which is pertaining to pathogenetic Yersinia,is a human and animal pathogen found in most countries of the world.The microorganism is widely distributed in nature in aquatic and animals.It is transmitted through the respiratory tract or digestive tract.The epidemical seasons are mainly autumn and winter.Within a broad spectrum of clinical diseases,gastroenteritis is commonly encountered.To detect Yersinia enterocolitica,molecular biological method is the highest sensitive and special.

Objective To analyze the laboratory detection findings in infectious mononucleosis(IM) and mucocutaneous lymphnode syndrome(MCLS)and find the main points of the differential diagnosis and direct the treatment. Methods Five hundreds and twenty-five children were in-patient department over these past 10 years .These patients were divided into 2 groups,IM group (225 patients) and MCLS group(280 patients). EB-virus antibody,Paul-Bunnell test,the circumference blood numeration ,classification of leucocytes,the numeration of atypical lymphocytes were detected and compared,as well as blood platelet of these patients.Results The positive rate of EB-virus antibody in IM and MCLS were high, and had no discrepancy. However, the positive rate of Paul-Bunnell test and numeration of atypical lymphocyte in IM group were significantly higher than those in MCLS group. The total circumference blood leucocyte numeration of the groups increased,but the numeration neutrophil increased significantly in MCLS group, the rising numeration of lymphocyte in IM; the blood platelet numeration was elevated significantly in MCLS group and continued when the total circumference blood leucocyte numeration tended normally.Conclusions The causes of IM and MCLS are related to the infection of EB-virus. The laboratory characteristics of IM and MCLS are different,understanding the main points of the differential diagnosis contributes to the clear diagnose and early treatment.

OBJECTIVETo verify the clinical efficacy on chronic fatigue syndrome of qi deficiency syndrome treated with acupuncture at selective time and explore the effect mechanism.

METHODSEighty patients were randomized into a selective-time-acupuncture group and an acupuncture group, 40 cases in each one. Qihai (CV 6), Guanyuan (CV 4), Hegu (LI 4), Taichong (LR 3), Sanyinjiao (SP 6) and Zusanli (ST 36) were selected in the two groups. In the selective-time-acupuncture group, acupuncture was used at 9:00am to 11:00am. In the acupuncture group, acupuncture was used at any time except in the range from 9:00am to 11:00am. No any manipulation was applied after the arrival of needling sensation. The treatment was given once every day, 10 day treatment made one session and two sessions of treatment were required. The fatigue scale was adopted to evaluate the efficacy before and after treatment in the patients of the two groups. The ratios among CD3+, CD4+ and CD8+ T cells in the peripheral blood were detected before ad b a after treatment.

RESULTSIn the acupuncture group, the total score of fatigue and the score of physical fatigue were reduced after treatment as compared with those before treatment (all P<0.05). In the selective-time -acupuncture group, the total score of fatigue, the s core of physical fatigue and the score of mental fatigue after treatment were reduced obviously as compared with those hefore treatment (all P<0. 01). The improvements in the scores of the selective-time-acupuncture group were superior to the acupuncture group (all P<0. 05). The ratio of CD3+ and CD8+ T cells was increased obviously after treatment in the two groups (all P<0. 05) and the ratio of CD4+ and CD8+ T cells was reduced obviously in the selective-time-acupuncture group (P<0. 05), which was better than that in the acupuncture group (all P<0.05). The total effective rate was 95.0% (38/40) in the selective-time-acupuncture group, which was better than 80.0% (32/40) in the acupuncture group (P<0.05).

CONCLUSIONThe acupuncture therapy at selective time is effective in the treatment of chronic fatigue syndrome of qi deficiency syndrome, which is especially better at relieving mental fatigue. The effect of this therapy is achieved probably by improving the immune function via the regulation of the ratios among CD3+, CD4+ and CD8+ T cells.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Fatigue Syndrome, Chronic ; immunology ; therapy ; Female ; Humans ; Lymphocyte Count ; Male ; Middle Aged ; Qi ; T-Lymphocyte Subsets ; cytology ; immunology ; Treatment Outcome ; Young Adult

Objective To understand the characteristics of population distribution,risk factors and risk links of occupational exposure among health care workers(HCWs)in a hospital.Methods Occupational exposure among HCWs between January 2011 and June 2014 were monitored,data about occupational categories of HCWs,expo-sure locations,exposure links and exposure modes were analyzed statistically.Results Among 286 occupational ex-posure cases,the female and male HCWs accounted for 22.03% (n=63)and 77.97% (n=223)respectively;the incidence of occupational exposure in 2011 ,2012,2013 and January-June of 2014 was 38.81 %(n=111),26.22% (n=75),23.43% (n=67)and 11 .54% (n=33)respectively;occupational exposure of junior nurses,doctors,nurs-ing attendants,technicians,senior nurses and cleaners was 31 .97%,19.90%,15.79%,7.64%,4.17%,and 2.84% respectively;exposure mainly occurred at the time of sorting waste,withdrawing or changing needles,dis-carding sharps into sharps containers,surgical suturing or instruments passing,and puncturing (including drawing blood),the constituent ratio was 22.38%,19.58%,14.34%,12.94% and 11 .19%,respectively;the main loca-tions where exposure occurred were wards,operating rooms and injection (treatment)rooms,the constituent ratio was 51 .40%,19.58% and 11 .54% respectively.Conclusion Hospital should establish comprehensive occupational exposure monitoring and risk management system,strengthen standard prevention,enhance the training about occu-pational exposure among high-risk population,and monitor and intervene on risk factors and links,so as to reduce the incidence of HCWs’occupational exposure.