Objective To systematically review the efficiency of 18 F-FDG PET in glioma grading by using Meta-analysis. Methods Retrieval in PubMed and China National Knowledge Infrastructure (CNKI)was performed. Relevant papers concerning with glioma diagnoses with 18 F- FDG PET were selected. Paper quality was evaluated according to the standard of diagnostic test recommended by Cochrane Workshop. The data of glioma malignancy degree defined as semi-quantitatively and qualitatively were extracted from the papers. Meta-analysis was conducted with the Meta-Disc software to calculate pooled weighted sensitivity and specificity with 95% confidence interval (CI). Summary receiver operating characteristic (SROC) curve was performed and the areas under the curve (AUC) were calculated. Results Seven hundred and fifty-three patients from 17 papers ( 16 in English, 1 in Chinese) were included. Two hundred and seventy-two patients from 11 papers were using semi-quantitative (tumor to cortex ratio, T/C; tumor to white matter ratio,T/W) method and 481 patients from 9 papers were using qualitative method (visual observation, some of the papers had 2 or more methods). After heterogeneity test was done, different effect models were selected. The pooled weighted sensitivity, specificity and diagnostic odds ratio (DOR) with 95% CI for T/C group was 0. 952 (95% CI: 0. 903 -0. 980), 0. 409 (95% CI: 0. 318-0. 504) and 11. 746 (95% CI:5. 368-25. 702) respectively. The pooled weighted sensitivity, specificity and DOR with 95% CI for T/W group was 0. 857 (95% CI: 0. 768-0. 922), 0. 538 (95% CI: 0. 431 -0. 642) and 22. 066 (95% CI:7. 077-68. 800) respectively. The pooled weighted sensitivity, specificity and diagnostic odds ratio (DOR)with 95% CI for qualitative method was 0.810 (95%CI: 0.757-0.855), 0.870 (95%CI: 0. 819-0.911 ) and 15.282 (95% CI: 3. 716-62. 851 ) respectively. The AUC for T/C group, T/W group and qualitative method was 0.8604, 0. 8373 and 0. 8724 respectively. Conclusions Grading glioma by 18 F-FDG PET with semi-quantitative method may provide high diagnostic sensitivity. If qualitative method is used, the diagnostic specificity may be higher.

Objecttive To observe the repaired effect of distinct source olfactory ensheathing cells (OECs) on spinal cord injury (SCI) rats. Methods These OECs were dissociated from olfactory bulb and olfactory mucosa of SD rats and transplanted to the injuried region of spinal cord injury rats. The function of nerve, motor evoked potential of hind legs and the histopathlogical diversities of injuried spinal cord were observed. Results The OECs grafts into the SCI area could survive longer time. The BBB scale, incubation stage of EP and histopathologic manifestations showed that the group with transplanted OECs regained more improvement in hindlimb than the control group. Conclusion The OECs of two sources have the same ability to regain and improve the axonal function which can promote axons regeneration of SCI.

Objective To investigate the efficacy of the combination of improved intramedullary VSD drainage and contained antibiotics bone graft to treat chronic tubular bones osteomyelitis.Methods From March,2011 to December,2013,our department have total of 40 patients with chronic tubular bones osteomyelitis.Twenty cases (group A) treat with one-stage osteomyelitis debridement cortical bone slotted,contained antibiotic bone and autologous bone implants and wound repair.Twenty cases (group B) treat with improved intramedullary VSD drainage 3-5 days temporarily after osteomyelitis debridement cortical bone slotted,then contained antibiotic bone and autologous bone implants and wound repair.A retrospective comparison of two groups of an average residence time of wound drainage postoperative,bone bed bacterial culture positive rate,average healing time,the average time of hospital stay,the average bone healing time,and recurrence rate of osteomyelitis.Statistical analysis with T test was used for above independent parametric.Results The two groups were followed-up for 6-24 months,independent samples t-test was used for two groups in the wound healing time,bone healing time,the drainage tube removal time and the length of hospital stay,in group A bone bed bacteria culture positive rate was 40％,group B was 5％,group A infection relapse has 2 cases,1 case was debridement cured,1 case was amputation,and the recurrence rate of 10％.Group B without infection recurrence,and the recurrence rate of 0％ ; The healing time and hospital stay of intramedullary drainage surgery patients (18.05 ± 2.74 d and 22.65 ± 2.80 d,respectively,in group B) was significantly less than one-stage surgery patients (24.10 ± 8.20 d and 28.10 ± 9.35 d,respectively,in group A),but the bone healing time and the drainage tube removal tine of two groups.There was no significant difference (P ＞ 0.05).Conclusion Contained antibiotic bone and autologous bone implants with wound healing therapy after osteomyelitis debridement cortical bone slotted with improvement VSD intramedullary drainage to treat patient with tubular bones osteomyelitis was more effective,it worthy of clinical spread.

Dissent and Disputes ; Humans ; Occupational Diseases ; diagnosis

Objective To compare the results of three dose verification solutions of esophageal carcinoma IMRT plans. Methods Seven esophageal carcinoma cases were planned with Pinnacle 8.0 h.The MATRIXX and Delta4 were chosen as the two-dimensional dosimetry and three-dimensional dosimetry.IMRT plans and Delta4 phantom plans were also recalculated by Monte Carlo. Gamma values were evaluated for MATRIXX and Delta4 with 3 mm/3% gamma criteria. For the comparison of Pinnacle, Delta4 and Monte gamma maps, the dose distribution in central plane, dose profiles and dose-volume histograms were used to evaluate the agreement. Results The gamma maps comparison show that with 3 mm/3% gamma criteria an over 98% pass ratio was obtained by MATRIXX measurement. A 94. 4% gamma pass ratio whicl.contains 4 fields gamma pass ratio lower than 90%, was obtained by Delta4 measurement. A 97.6% and 99. 8% gamma pass ratio was obtained between the Delta4 measurement and Monte Carlo simulation with 2 mm/2% and 3 mm/3% gamma criteria. The dose distribution in central plane and dose profiles from Pinnacle calculation were almost in agreement with both the Monte Carlo simulation and Delta4 measurement. The DVH plot have slightly differences between Pinnacle and Delta4 measurement as well as Pinnacle and Monte Carlo simulation, but have excellent agreement between Delta4 measurement and Monte Carlo simulation. Conclusions It was shown that all the three methods can be used very efficiently to verify esophageal carcinoma IMRT delivery, Delta4 and Monte Carlo simulation no data missed. The primary advantage of Delta4 is the fact it can measure true 3D dosimetry while Monte Carlo can simulate in patients CT images but not in phantom.

Objective To investigate the long-term survival of esophageal squamous cell carcinoma (ESCC) patients of different ages after three-dimensional conformal radiotherapy (3 DCRT).Methods From July 2003 to September 2008,769 patients with stage Ⅰ-Ⅲ ESCC were eligible for the analysis.All patients were treated with 3DCRT.The prescribed dose was 50-70 Gy (median,60 Gy),1.8-2.0 Gy per fraction,5 fractions per week.The Kaplan-Meier method was used to calculate overall survival (OS) and local control (LC) rates; the log-rank test was used for survival difference analysis and univariate prognostic analysis;the Cox regression model was used for multivariate prognostic analysis.Results The follow-up rate was 98.3％.For all patients,the 1-,3-,and 5-year LC rates were 76.3％,52.8％,and 48.5％,respectively,and the 1-,3-,and 5-year OS rates were 70.1％,36.2％,and 23.0％,respectively.The 1-,3-,and 5-year OS rates were 71.2％,38.8％,and 24.9％,respectively,for patients aged 45-74 years,versus 69.6％,26.6％,and 15.4％ for patients aged 75-89 years (P =0.008).Multivariate prognostic analysis showed that age was also a prognostic factor in ESCC patients after 3DCRT.A total of 620 patients died.Patients aged 45-74 years had a significantly higher proportion of individuals that died of distant metastasis (23.9％ vs.14.2％,P =0.009),while patients aged 75-89 years had a significantly higher proportion of individuals that died of non-cancer diseases (14.1％ vs.4.9％,P=0.000).Conclusions Survival varies between ESCC patients of different ages after 3DCRT.The survival of elderly ESCC patients is poor,and the relatively high mortality from non-cancer diseases may be an important reason for poor survival.

s:The chemical constituents of gliocladium roseum(called Y)accelerating the growth of famous medicin al plant Anoectochilus roxburghiiwas studied.Five comp ounds were separated by silica gel column chromatograph from this fungal mycelia and their structures were elu cidated by the data of IR,NMR,UV and MS.Compound I was 6,22-diene-3-hydroxy- 5,8-epidioxy ergosta,compound 2 is ergosterol,compound 3 is D-arabitol and com pound 4 is mannitol.

Objective To explore the effect of Melatonin(MT) on CD4+CD25+ regulatory T cell (CD4+CD25+Tr)and airway inflammation in asthmatic rat.Methods Thirty-two SD rats were randomly divided into 4 groups,8 rats in each group.Asthmatic group:rats were immunized on day 1 and 7 by intraperitoneal inject of mixture of ovalbumin(OVA) and aluminumhydroxide.From day 14,the animals were allenged with aerosolized OVA for 20 min per day for 7 consecutive days.MT group:OVA-sensitized rats were injected intraperitoneally with 0.1 mg/kg MT 30 min before each OVA challenge.Dexamethasone group:OVA-sensitized rats were injected intraperitoneally with 0.5 mg/kg Dexamethasone 30 min before each OVA challenge.Control group:OVA for inhalation and MT for intraperitoneal injection was replaced with saline.After the last challenge,peripheral blood was stained to count the percentage of eosinophil(EOS).Then the rats were lavaged and total leukocytes counts in bronchoalveolar lavage fluid(BALF) were performed after staining with Wright-Giemsa staining.The EOS counts around the airway was counted after the histological section of lung staining with hematoxylin and eosin staining.The serum level of immunoglobulin E(IgE) was detected by immunoenhancement.The change of CD4+CD25+Tr was assessed with flow cytometry.SPSS 10.0 software was applied to analyze data. Results In asthmatic rats,the CD4+CD25+ Tr/ CD4+T cells ratio had significant negative relationship with the EOS counts around the airway and the total leukocytes counts in BALF (r=-0.73 P0.05).There was a significant decrease in the percentage of the eosinophils in peripheral blood,the eosinophil counts around the airway,the total leukocytes counts in BALF and the serum level of IgE in MT group compared with asthmatic group (Pa

0.05).The setting time of hydroxyaptite and glass ions cements with Co-F were longer but there was little effect on zinc phosphate cements. Conclusion The Co-F agent added to dental cement can not only improve the compressive strength but also contin- ually release fluoride.

Objective To investigate the effects of early rehabilitative training program on patients with acute myocardial infarction(AMI).Methods One hundred and twenty-two patients with AMI were randomly divided into early rehabilitation group(n=62)and control group(n=60).In addition to routine treatment,patients in rehabilitation group received early rehabilitative training mainly by walking exercise for two weeks.Results There were no significant differences in ventricular arrhythmia(Lown≥Ⅲ), extension of infarction and heart rate variability(HRV)between the two groups(P＞0.05).Forty of 62 patients(64.5%)in rehabilitation group had their left ventricular ejection fraction(LVEF)more than or equal to 50% in the 3~(rd)～4~(th)week after admission,significantly higher than that in control group(45.0%, 27/60 ;P＜0.01 ).By the end of the 4~(th)week after admission,25.8% of the patients in rehabilitation group showed positive in treadmill test,significantly lower than that in control group(38.3%,P＜0.01). Occurrence of angina pectoris and reinfarction and fatality in rehabilitation group were significantly lower than those in control group(P＜0.05)during their hospitalization and follow-up period.Patients in rehabilitation group stayed at hospital for(16?3)days in average,significantly less than that in control group[(27?4) days],with statistically significant difference(P＜0.05).Conclusion Early rehabilitative training for patients with uncomplicated AMI is not only safe and feasible,but also useful in improvement for their prognosis and quality of life.