Objective:To analyze the clinical efficacy and safety of amoxicillin and clavulanate potassium in the treatment of chil-dren with suppurative tonsillitis. Methods:Totally 263 children with suppurative tonsillitis from March 2011 to September 2013 in pe-diatrics were randomly divided into two groups, the control group had 130 cases and the treatment group had 133 cases. All the patients were given conventional treatment, meanwhile, the control group was with intravenous infusion of azithromycin, and the treatment group was orally given amoxicillin and clavulanate potassium dispersible tablets. The clinical efficacy, clinical symptom disappearance time and the incidence of adverse reactions of the two groups were observed. Results:After the treatment, the control group were cured with the total effective rate of 83. 8%, and the treatment group were healed with the total effective rate of 90. 2%. The difference wasn't sig-nificant (P>0. 05). Orally used amoxicillin and clavulanate potassium was more economic and convenient, which could reduce the drug-resistance as well. There was no significant difference in the effects on fever, purulent and the white blood cell between the two groups, and no significant adverse reactions showed in both groups. Conclusion:Orally used amoxicillin and clavulanate potassium ex-hibits obvious therapeutic effect on infantile suppurative tonsillitis, which can effectively improve the clinical symptoms without obvious adverse reactions, and it is worthy of clinical use.

ObjectiveTo investigate response monitoring function in individuals with pathological internet use(PIU) using the modified Eriksen flanker task by event-related potentials(ERPs).Methods23 individuals met Young's diagnostic questionnaire (YDQ) criteria for PIU were enrolled as research group and 23 sexual-and age matched healthy persons enrolled as control group.EEG was recorded during participants performed the modified Erikson flanker task.Reactive time (RT) and error rates were compared between two groups. BESA 5.2.0was used to perform data analysisand theerror-related negativity(ERN)amnplitudeswereanalyzed.Results False alarm rate of PIU group was higher than that of control group.A repeated measure ANOVA revealed a significant group,frontal electrode sites and group × frontal electrode sites main effect for ERN amplitudes ( for group:F =768,df=1,P =0.000 ; for frontal electrode sites:F =615,df=2,P =0.000 ; for group × frontal electrode sites:F =516,df=2,P=0.000),and a significant group,central electrode sites and group × central electrode sites main effect for ERN amplitudes ( for group:F=768,df=1,P =0.000 ; for central electrode sites:F =599,df=2,P =0.000 ; for group × central electrode sites:F =483,df=2,P =0.000).ERN amplitudes of PIU group were lower than those at control group.ConclusionIndividuals with PIU present response monitoring dysfunctions and share neuropsychological and ERPs characteristics of compulsive-impulsive spectrum disorder,which supports that PIU is an impulse disorder or at least related to impulse control disorder.

Objective To explore the short and long term curative effects of percutaneous transhepatic cholangioscopic lithotomy (PTCSL) in the treatment of intrahepatic stone (IHS).Methods 38 IHS patients were enrolled,who were treated with PTCSL between January 2008 and July 2013.Results PTCSL was successfully completed in all the 38 IHS cases.Stone clearance rate was 84.2％ and the average episode of stone removal was (2.6 ± 0.9) times.Average diameter of percutaneous transhepatic fistula was (18.4 ± 0.6) F and the average time from percutaneous transhepatic puncture and fistulization to cholangioscopic lithotomy was (7.2 ± 0.7)d.The average operation time was (68 ± 20) min,intraoperative blood loss was (20 ± 13) ml,and hospitalization was (4 ± 2) days.The hepatolith recurrence rate in patients with stones completely removed was 37.5％ (12/32),and 1 case developed into biliary cirrhosis.Patients with calculi residual suffered from higher hepatolith recurrence rate of 83.8％ (5/6),with biliary cirrhosis found in 1 case.Conclusions PTCSL is safe and effective in treating primary IHS,which is indicated in multiple recurrent IHS especially in after biliary surgery patients.It has the advantages of minimally invasion,less bleeding,less postoperative pain,less complications,and fast postoperative recovery.

Objective To analysis of incidence and mortality of prostate cancer in urban Guangzhou during 2000-2011 and discuss the trends.Methods The incidence and mortality rates were calculated by analyzing data obtained from Guangzhou Cancer Registration Center.Standardized rates were calculated using the Segi's World Standard Population.According to the characters of morbidity and mortality,ages were divided into three groups of 0-64,65-74 and ≥ 75 years.The average annual percentage change (AAPC) were calculated by Jointpoint Regression Program 4.0.4.Results Altogether 3 029 new cases of prostate cancer and 964 related deaths were registered between 2000 and 2011.The AAPC was 10.01％ (95％ CI:6.00％-14.20％) in crude incidence rate and 8.04％ (95％ CI:6.20％-9.90％) in crude mortality rate,resulting in a total increase of 287.76％ (from 4.82 to 18.69 per 100 000 population) in incidence and 142.90％ (from 2.41 to 5.86 per 100000 population) over the 12 years.There was no significant difference in both standardized incidence and mortality change.The AAPC was 11.51％ (95％ CI:6.00％-17.30％) in 0-64 age incidence rate (resulting in increase of 315.87％ and 1.99 per 100,000 population),4.19％ (95％ CI:0.30％-8.20％) in 65-74 age incidence rate (resulting in increase of 92.72％ and 45.82 per 100 000 population) and 2.77％ (95％CI:-1.00％-6.70％) in ≥75 age incidence rate (resulting in increase of 42.84％ and 63.13 per 100 000 population).The age incidence rate increase was the largest in the ≥ 75 age group,but fastest in the younger group.The age mortality trend was only statistically significant in 0-64 age group,AAPC was 6.25％ (95％ CI:0.30％-12.60％).Conclusions The incidence and mortality rates of Guangzhou increased in a fast rate.The prevention and control of prostate cancer should be strengthened.

The sequence encoding an E2 main antigen glycoprotein of the C strain of classical swine fever virus (CSFV) was highly expressed in the host cell E. coli BL21-CodonPlus (DE3)-RIL using the pGEX-4T-1 expression vector and the soluble recombinant product was purified with Glutathione Sepharose TM<'4B> by centrifugation. The soluble recombinant protein showed good immune reactions and was confirmed by Western blot using anti-CSFV-specific antibodies. Then an indirect ELISA with the purified E2 protein as the coating antigen was established to detect antibody against CSFV. The result revealed that the optimal concentration of coated antigen was 0.6 μg/well and the optimal dilution of serum was 1:80. The positive cut-off value of this ELISA assay was OD<,tested serum>/OD<,negative serum>≥2.1- The E2-ELISA method was evaluated by comparison with the indirect hemagglutination test (IHAT). When a total of 100 field serum samples were tested the sensitivity and specificity were 90.3% and 94.7% respectively. Specificity analysis showed that there were no cross-reactions between BVD serum and the purified E2 protein in the E2-ELISA.

Objective To investigate deficient inhibitory control in individuals with IAD using a visual go/no-go task by ERPs. Methods 26 individuals met YDQ criteria for IAD were enrolled as research group and marched sexual and age 26 healthy person enrolled as control group. BIS-11 was used for measures of impulsivity.A go/no-go task involved eight different two-digit numerical stimuli. The response window was 1000 ms and the ITIwas 1500 ms. EEG was recorded during participants performed the task. BESA 5.2.0 was used to perform data analysis and the no-go N2 amplitude was analyzed for investigation of inhibitory control. Results BIS-11 total scores, attentional key scores and motor key in IAD group were higher than that of control group. In the go/no-go task, false alarm rate of IAD group was higher and hit rate was lower than that of control group. A repeated measure ANOVA revealed a significant group, frontal electrode sites and group × frontal electrode sites main effect for N2amplitudes of no-go conditions ( for group: F= 3953, df= 1, P= 0.000;for frontal electrode sites: F= 541, df= 9, P= 0.000;for group × frontal electrode sites: F = 306, df = 9, P = 0. 000 ), and a significant group, central electrode sites and group × central electrode sites main effect for N2 amplitudes of no-go conditions ( for group: F=9074, df= 1, P = 0. 000;for central electrode sites: F = 163, df= 2, P = 0.000;for group × central electrode sites: F = 73, df= 2, P = 0.000). N2 amplitudes of no-go conditions were lower than those at control group. Conclusions Individuals with IAD were more impulsive than controls and shared neuropsychological and ERPs characteristics of compulsive-impulsive spectrum disorder, which supports that IAD is an impulse disorder or at leastrelated to impulse control disorder.

Objective To investigate the clinical significance of NaviCam magnetic-controlled capsule endoscopy (NMCE) system in the examination of upper gastrointestinal tract.Methods A total of 39 healthy volunteers were enrolled in the present study.NMCE system was used to examine upper gastrointestinal tract.The safety,gastric preparation,visualization and comfort of the subjects were evaluated.Results Visualization of the Z-line,gastric cardia,fundus,body,angulus,antrum and pylorus was subjectively assessed as more than 75％ mucosa in 19 (48.71％),37 (94.87％),25 (64.10％),30 (76.92％),39 (100.00％),39 (100.00％),and 39 (100.00％),respectively.The observation time was 1.5,3.0,8.0,17.0,3.0,3.0,5.0 min respectively.The capsule was driven into duodenum positively in 25 (64.10％).Seven subjects went into small bowel without control.The one-time visualization efficacy was 97.43％ (38/39).Only one subject felt foreign body sensation.All subjects extracted the capsule within 7 days.Conclusion Our study provides a preliminary assessment of the NMCE on its feasibility and safety.It is comfortable with no chance of cross-infection.NMCE system is a useful tool for upper GI examination and will have a good future.

With wide application of medical consumables, inventory management of medical consumables has important significance. The principle and two specific methods for keeping inventory level are introduced to give specific requirements of stock materials keeping and quality management. How to set up scientific management processes is more discussed in order to protect the work development of clinical medical care in health and safety in related crow, such as patient and user, and improve the efficiency and reduce labor intensity of care, so that the quality of medical care can reach to a new level.

Objcetive To investigate the protective effects of the nitroxides R-1 on human liver cells exposed to ionizing radiation.Methods Human liver cells L-02 were cultured and irradiated with 60Co γ-rays at the doses of 0,1,2,4,and 8 Gy,in order to screen the proper irradiation dose.WR2721 at the terminal concentration of 4 mmol/L was used as positive control.L-02 cells irradiated with 4 Gy were added with R-1 at the terminal concentration of 0.25 μmol/L at 30 min before irradiation or immediately after irradiation.MIT method was used to screen the proper conditions for follow-up experiment 72 h later.L-02 cell culture fluid was added with R-1 at the concentrations of 0,0.125,0.25,0.5,and 1 μmol/L,respectively for 30 min before irradiation at the doses of 0,1,2,4,and 8 Gy to ealculate clone formation rate at 10 d post-irradiation.L-02 cells were cultured and divided into 4 groups:control group without any treatment.drug group pretreated by 0.25 μmol/L R-1 only,irradiation group,irradiated at 4 Gy only,and drug + irradiation group with combination of 0.25 μmol/L R-01 and 4 Gy irradiation.The inverted microscopy and Hoechst 33258 staining and flow eytometry were used to observe the apoptosis of the cells at 24,48,and 72 h later.Results Nitroxides R-1 did not inhibit the viability of L-02 cell when its concentration was less than 1 μmol/L and it inhibited the L-02 cell growth when the concentration wu higher than 2 μmoL/L.The A value and colony formation rate of different concentration of R-1 groups were all higher than those of the irradiation group,and the effect of the 0.25 μmol/L drug concentration group was the most significant.Consequently,the concentration 0.25 μmoL/L was selected for follow-up experiment.Compared with the irradiation group,the L-02 cells of the pretreatment group showed solid adherence, increased refraction,clear outline,less apoptotic and dead cells at 4 Gy post-irradiation.Conclusions Nitroxides R-1 can protect the human liver cells from 60Coγ-ray induced injury effectively.The mechanism of its protective effect may be the reduction of apoptosis.

Objective To investigate the effect and mechanism of human amniotic epithelial cells (hAECs) transplantation in treatment of cerebral hemorrhage in rabbits.Methods Thirty New Zealand white rabbits were used to induce cerebral hemorrhage.Animals were divided into hAECs group and isotonic saline group according to random number table,with 15 rabbits per group.Before transplanted to rabbits,hAECs were transfected with the retrovirus carrying green fluorescent protein (GFP).Morphologic and behavioral changes in both groups were noted periodically.Survival of transplanted hAECs and expressions of glial fibrillary acidic protein (GFAP) and microtubule-associated protein 2 (MAP-2)in focal cerebral tissues were observed.Results In hAECs group,the rabbits obtained progressive recovery in walking,supporting and coordinated motion.Restoration period mostly ranged from 2-3 weeks.Most of the rabbits in hAECs group had limb motor function recovered to grade Ⅱ-Ⅲ,while the recovery is slow in isotonic saline group with most ranging from grade Ⅰ-Ⅱ.According to Tarlov score,limb motor function presented significant difference between hAECs group and isotonic saline group (P ＜ 0.05).Immunohistochemical staining showed positive expressions of GFAP and MAP-2 in hAECs group,but no expressions in isotonic saline group (P ＜ 0.05).Conclusion hAECs transplantation effectively improves neural behavior and reduces nerve function impairment in treatment of cerebral hemorrhage in rabbits.