By using PDA plate and PDB shaking culture method, the effect of six chemical pesticides on the spore germination, plate inhibition and Biomass of the biological control strains Pochonia chlamydospora ZK7 for tobacco root-knot nematodes were measured. Results showed that strain ZK7 is resistant to six pesticides at lower concentration and the resistance level are different among different pesticides. Carbetamide and thiophos of them have the biggest resistance, next is phoxim-methyl and metaldehyde, the last is carbophenothion and aldoxycarb.

During curing of harvested fresh tobacco leaves, microbes affect obviously the quality of tobacco leaves. This review provides the advance in main groups, occurance dynamics, effects to quality of tobacco leaves, and control and utilization.

Objective To investigate the value of PCT in the diagnosis of severe infection in children.Methods The clinical data of patients with infectious diseases treated in our hospital from December 2013 to February 2016 were retrospectively analyzed.According to the degree of infection,the patients were divided into local infection group and severe infection group,At the same time,the clinical data of 50 children with non infectious diseases were selected as control group.The differences of serum PCT and cytokine levels were observed between the three groups,at the same time,according to the prognosis of patients with severe infection group were divided into improvement group and deterioration group,The differences of serum PCT and inflammatory cytokines levels in the patients with severe infection in the improvement group and the worsening group,Analysis of the correlation between PCT levels and serum inflammatory cytokines levels in children with severe.Results There were significant differences in the levels of PCT,IL-18,IL-6 and hs-CRP between the three groups,which were from high to low: severe infection group,local infection group and control group; Deterioration of PCT,IL-18,IL-6,hs-CRP and levels were higher than the improvement group(t=-10.099,-8.949,-10.827,-2.088,P<0.05); The level of PCT were positively correlated with IL-18,IL-6 and hs-CRP levels in children with severe infection(r=0.385,0.412,0.408,P=0.012,0.008,0.017).Conclusion PCT has a good diagnostic value in children with severe infection,and it is closely related with the level of inflammatory cytokines in children with severe infection.

Objective To compare the knee of patient controlled subcutaneous injection of morphine analge-sia after hip joint replacement ( PCSA ) and intravenous morphine patient-controlled analgesia ( PCIA ) effect and safety of postoperative analgesia.Methods 60 patients undergoing artificial total knee arthroplasty patients were selected and randomly divided into PCIA group of 30 cases,30 cases in group PCSA, two patients were completed under epidural anesthesia in the operation.Group PCIA and group PCSA single dose divided into 1mg/and 2.5mg/, lock time divided into 5min,20min,in the postoperative pain perception,from the patient's own pain medication.After 4h,8h,12h,24h record patient morphine dosage,frequency,pain score (VAPS),mean arterial blood pressure and re-spiratory rate,compose degree,analgesic effects were compared between the two groups.Results In group PCSA after 24h treatment for the total dose was (30.41 ±10.00) mg,significantly higher than that of group PCIA (18.03 ± 6.04)mg,there was significant difference between the two groups (t=3.98,P<0.05);but after each time point of the two groups of patients the average dosage had no statistically significant difference (P>0.05).PCIA group after 0-4h and >4-8h analgesia and sedation were better than those in PCSA group (t=3.4,3.2,3.5,3.7,all P<0.05), PCIA group,the incidence rate of nausea and vomiting was 30%,higher than 12%in the PCSA group,there was sig-nificant difference between the two groups (χ2 =5.76,P<0.05).Conclusion The two kinds of methods of analge-sia has a good analgesic effect,but PCSA analgesia is slower,less adverse reactions,should be given a loading dose at the beginning before PCSA,in order to improve the early analgesia effect.

Objective To study the effect of mild hypothermia combined with edaravone on the expressions of tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)in cerebrospinal fluid(CSF)of patients with severe traumatic brain injury(sTBI)and on their prognoses. Methods A prospective randomizd controled trial was conducted. Seventy-seven patients in the Center for Neurology and Neurosurgery of Affiliated Hospital of Logistics University of Chinese People's Armed Police Forces were randomly assigned into control group(38 cases)and treatment group(39 cases)according to random number table. All the patients were treated with routine treatments such as dehydration of intracranial pressure(ICP),neural nutrition,anti-infection,mechanical ventilation and maintenance of water and electrolyte balance in control group,while in treatment group,the patients received mild hypothermia combined with edaravone on the basis of routine treatment within 24 hours after injury. The contents of TNF-αand IL-6 in CSF were measured by radio-immunoassay(RIA)at different time points in both groups. In the meantime,the ICP was also measured. The prognosis was evaluated after 6 months of injury according to Glasgow outcome scale(GOS). Results Compared to control group,in the treatment group,the expression levels of TNF-αand IL-6 in CSF had no significant difference(both P>0.05)on the 1st day after injury,but they were significantly increased on the 3rd day after injury,began to decline on the 7th day,and reached to the valley value on the 14th day after injury,the degree of descent in treatment group being more significant than that in control group〔TNF-α(μg/L):2.43±0.39 vs. 3.12±0.47,IL-6(ng/L):83.53±11.48 vs. 101.69±13.64,both P<0.01〕. Before the treatment,the level of ICP in treatment group had no significant difference from that of control group(P>0.05),but it was gradually increased on the 1st day after injury in both groups,it reached the peak value on the 3rd day after injury,and began to decline on the 7th day after injury,the degree of descent being more significant in treatment group〔mmHg(1 mmHg=0.133 kPa):14.88±3.73 vs. 21.76±4.78,P<0.01〕. The favorable prognosis rate was significantly higher〔35.9%(14/39)vs. 21.1%(8/38),P<0.05〕,and the mortality was obviously lower in treatment group than those of control group〔28.2%(11)vs. 42.1%(16),P<0.05〕. Conclusion In patients with sTBI,mild hypothermia combined with edaravone can protect brain tissue through alleviating high ICP and decreasing the expression levels of TNF-αand IL-6 in CSF, resulting in promoting the recovery of nerve functions and improving prognosis.

Objective To investigate the association betw een systemic lupus erythematosus(SLE)and polymorphismof Fc gamma receptor ty peⅢin Han patients fromHunan province.Methods Genotypes of Fc?RⅢa-158V/F were determined by polymerase chain reaction(PCR)and restriction fragment length polymorphism(RFLP)analysis in 65patients with SLE and 60normal controls.Results①It was found that the frequency of homozygous Fc?RⅢa-158F /F genotype was significantly h igher in patients with SLE than that i n controls(OR=2.23,? 2 =4.69,P=0.03).②The frequencies of both homozygous Fc?RⅢa-158F /F genotype and Fc?RⅢa-158F allele were significantly high er in patients with lupus nephritis c ompared with those in controls(OR=2.67,? 2 =5.36,P=0.02;OR=2.00,? 2 =4.91,P=0.03).Conclusions These results suggest that an abnorm al distribution of Fc?RⅢa-158V/F polymorphism is associated with SLE in the Hans of Hunan province,and the presence of Fc?RⅢa-158F allele is a risk factor for lupus nephritis.These findings support t he hypothesis of a genetic mechanism in the pathogenesis of SLE.[

Objective To analyze the changes of bone mineral density (BMD) and the incidence of osteoporosis in elderly people in Xuzhou area by measuring BMD, and provide reference to osteoporosis prevention and control. Methods From 2005 to 2008, BMD were measured in 1204 elderly people by dual energy X-ray absorptiometry (DEXA). The measurement included the neck of femur and L2-4 of lumbar. All subjects were divided into multiple sections with every 5 year interval. Osteoporosis was diagnosed according to the criteria of BMD peak minus 2. 5 SD. BMD values and the incidence of osteoporosis were analyzed among different age and gender groups. Results BMD of different sites decreased year by year in both male and female in Xuzhou area. After 55years of age BMD decreased more in female than in male ( P ＜ 0. 01 ). The incidence of osteoporosis in female was higher than that in male. Conclusions We should reinforce the health education on osteoporosis prevention. Intervention should be conducted in females older than 55 years and males older than 65 years to decrease the occurrence of osteoporosis.

Objective Toinvestigate the molecular characteristics including antibiotic resistance,strain type,serotype,virulence,biofilm formation of Streptococcus pneumoniae isolated from Shanghai adult patients.Methods A total of 37 non-repetitive S.pneumoniae isolates causing community acquired and hospital acquired infections of adults were collected from Shanghai Huashan Hospital from January 2011 to December 2013.The inhibitory zone diameter or minimum inhibitory concentrations (MICs) of 9 antimicrobial agents (penicillin,vancomycin,erythromycin,clindamycin,levofloxacin,cefprozi,ceftriaxone,cefotaxime and linezolid) were determined by Kirby-bauer (K-B) method or Etest method;Serotypes were tested by polymerase chain reaction (PCR) and S.pneumoniae antisera agglutination;Genomic characteristics of different serotype strains were determined by pulsed field gel electrophoresis (PFGE)method;Multilocus sequence types (MLST) was used for strain type;Semi quantitative biofilm formation test was used for the biological membrane formation.Ten main pneumococcal virulence genes (cbpA,pspA,cps2A,lytA,nana,pavA,piaA,ply,psaA and spxB) were detected by PCR and gel electrophoresis.Statistical analysis was performed using Stata software and association statistics were tested using Fisher's exact test.Results The most frequent serotypes were 19F (13.5％),23 F (13.5％),14 (10.8％),19A (10.8％).The penicillin resistance rate was 64.9％.Serotypes 19 F,19A and 23 F were significantly associated with penicillin resistance (x2 =5.89,P =0.015) and the isolates belonged to these serotypes were all multi-drug resistant (MDR).ST81 and ST271 showed high resistance rates to several antibiotics including penicillin (x2 =4.57,P =0.033).Biofilm formation was significantly associated with serotypes 19A (x2 =5.55,P =0.018) and strain type ST320 (x2 =4.33,P =0.037),but not associated with penicillin resistance (x2 =0.16,P =0.686).Virulence gene lytA,pavA,ply,psaA,spxB were found in all isolates.Conclusions Penicillin resistance rate of S.pneumoniae in adult is rising.Specific serotype,epidemic clone and antibiotic resistance are closely related,and can provide the basis for the infection control.The virulence factors such as PspA will be the new targets for vaccine development to reduce S.pneumoniae infection in the future.

Objective To evaluate the left ventricular systolic dyssynchrony in patients with left ventricular apical ballooning syndrome (LVABS) quantitatively by real-time three-dimensional echocardiography(RT-3DE) and its correlation with left ventricular ejection fraction(LVEF).Methods 7patients with LVABS were enrolled in this study.The images of left ventricle in full volume mode were obtained by RT-3DE in the different time (just after admission,4 weeks and 8 weeks).Post-processing software of 4D LV Volume Tom-Tec was used for calculation of EF and 16-segmental time-volume curves was obtained.The time to the point with minimal systolic volume(Tmsv) of each segment was calculated and by which the following indexes of systolic dyssynchrony were derived:Tmsv16-SD/Dif,Tmsv-basalSD/Dif,Tmsv-mid-SD/Dif and Tmsv-apical-SD/Dif.The correlation between systolic dyssynchrony index (SDI) and LVEF was analysed.Results ① The Tmsv16-SD/Dif,Tmsv-basal-SD/Dif,Tmsv-mid-SD/Dif and Tmsv apical-SD/Dif of left ventricle in the patients of 4 weeks and 8 weeks were smaller than those of the patients just after admission.There were significant differences among them(all P ＜0.05).②The more SDI increased,the more LVEF decreased,and vice versa.SDI was negatively associated with LVEF in the different time of admission (just after admission:r =-0.758; 4 weeks:r =-0.831 ; 8 weeks:r =-0.889;all P ＜0.05).Conclusions Left ventricular systolic dyssynchrony of severe degree is observed in patients with LVABS just after admission.But the condition of dyssynchrony has been improved gradually after 4 weeks and 8 weeks.SDI is negatively correlated with LVEF.

Objective To investigate the risk factors and revision strategies for rod fracture in patients with severe kyphoscoliosis following posterior vertebral column resection (PVCR).Methods Between June 2003 and June 2011,7 patients (4 males and 3 females) who developed rod fractures following PVCR in our institution were retrospectively reviewed.The average age was 24.4 years (range,12-39 years) at the time of primary surgeries.The occurrence times and locations of the rod fractures were recorded and the risk factors for the fractures were analyzed.Results The occurrence times of the rod fractures ranged from 6 to 53 months.Five cases of fracture occurred within 2 years after the primary surgeries,while the other 2 cases occurred more than 4 years after the primary surgeries.Six cases of fracture occurred at levels of osteotomies and 1 case occurred at 1 level below the osteotomy.The potential reasons for rod fractures were listed as follows:(1)residual kyphosis (1 case); (2) residual kyphosis combined with unsteady gait (1 case); (3) residual kyphosis combined with single rod fixation (1 case); (4) residual kyphosis combined with malposition of titanium mesh cage (1 case); (5) residual kyphosis combined with anterior column defect; (6) injury (2 cases).Six patients underwent revision surgeries,5 patients received one-stage combined anterior-posterior approach surgeries,while 1 patient received single posterior surgery.They were followed up for 12 to 22 months (average,18months).At final follow-up,all patients obtained satisfying corrections and graft fusion,without internal fixationrelated complications.Conclusion Rod fractures mostly occur at levels of osteotomies within 2 years after PVCR.Residual kyphosis is the main risk factor for the rod fracture.Injury,anterior column defects,unsteady gait,single rod fixation and malposition of titanium mesh cage also increase risks of rod fractures.