[Objective]To compare the difference of percutaneous kyphoplasty in treating osteoporosis compression fractures using the Sky Bone Expander system and the Balloon Bone Expander system,and evaluate its clinical efficacy.[Method]From October 2005 to October 2007,19 patients of osteoporosis compression fractures with intact posterior vertebral body were performed.Nineteen patients were infated while 9 as group A were balloon group and 10 as group B were SKY group,fracture reduction and bone cement augmentation were applied.Preoperative and postoperative symptom levels,variables,complications were recorded and the vertebral height,Cobb′s angle and VAS score were measured and analyzed.[Result]Pain in all patients was alleviated or disappeared without syndrome,and the vertebral height,Cobb′s angle and VAS score of both groups were improved.The contrast between preoperative and postoperative showed obvious differences(P0.05).[Conclusion]Kyphoplasty can provide early relief of pain and improve the function as well as spinal alignment in treating osteoporotic compression fractures owing to recovering the verteberal height and Cobb′s angle of the vertebral body.Balloon inflated kyphoplasty can improve osteoporolic compression fractures as SKY.

Cough ; Exanthema ; Fever ; Humans ; Respiratory Sounds

Purpose: To evaluate the influence of lung corrections on the target volume dose in radiation treatment of esophageal carcinoma by TPS HEVAPLAN. Materials and Methods: Three radiation field technique to middle esophagus were used as the model of this investigation .target volume doses were calculated with photons in different energies to compare with the divergence when the lung density were set to 1.0(without lung correction) 0.33 and 0.2 (with lung correction).Results: If no lung correction was performed, the actual radiation dose in target volume were 24%～28%, 18%～21%, 13%～15% and 7%～9% which were radiated with 60 Co, X-ray of 5MV, 8MV and 19MV. Conclusion: The lung density must be corrected in treating 60 Co unit.

Objective:To construct an eukaryotic expressing plasmid of IL-24,and investigate its inhibitory effects on the growth of tumor cells in vitro and in vivo.Methods:The eukaryotic expressing plasmid of IL-24(pEGFP-C1-IL-24) was constructed by DNA recombination technique.The recombination plasmid and empty vector were transfected into HIC cells,respectively with Lipofectamine 2000 Reagent and the expressions were determined by LSCM;the proliferation of HIC cells was measured by MTT assay;and apoptosis rate and cell-cycle distribution of HIC cells were measured with Flow Cytometry.Mice were inoculated with B16 cells,which were transfected with pEGFP-C1-IL-24 or empty vector,and the tumor size in mice was detected.The inhibitory effect of IL-24 gene transfection in mice solid tumor was observed and measured.Results:The expression of pEGFP-C1-IL-24 in HIC cells was determined by LSCM after the transfection of pEGFP-C1-IL-24.Comparing to the control group,the proliferation of HIC cells was inhibited by transfection with pEGFP-C1-IL-24 and the G2-M phase of the transfected cells was also increased.Moreover the percentage of mice with detectable tumor was significantly decreased after inoculated with B16 cells transfected with pEGFP-C1-IL-24.Growth rate of tumor in mice model was also significantly inhibited in IL-24 gene therapy group as compared with the control grouop(P

Objective To evaluate the effect of dose-rate and leaf position tolerance on the point dose in step-and-shoot intensity-modulated radiotherapy(IMRT). Methods IMRT plans of 2 prostate cancer patients were selected and recalculated for a water phantom.An ionization chamber was used to measure the dose of some points in the phantom at five nominal dose-rates:100 MU/min,200 MU/min,300 MU/min,400 MU/min and 500 MU/min.It was necessary to adiust the position of the water phantom to locate the ionization chamber in region where the dose gradient was very low in order to minimize the effect of dose gradient on the measured results.When measuring the effect of leaf position tolerance on point dose,the dose-rate was kept constant and the values of tolerance were 1 mm,2 mm,3 mm and 4 mm.This work was conducted on a Varian 23EX equipped with a Millennium 120-leaf multi-leat collimator(MLC).The treatment planning system was Varian Eclipse. Results As the dose-rate increased,the error between the measured dose and the calculated dose also enlarged.The difference between the maximum and the minimum was 1.2%.When MLC control system was working normally,tlle effect of leaf position tolerance on the measured point dose was very little and negligible. Conclusions The dose-rate must be selected suitably to ensure that the delivery can be finished in a short time with the radiobiological effect taking into account.It should be noted that the error between the measured dose and the calculated dose increases with the trend of inereasing more rapidly at higher dose rates.The value of leaf position tolerance should not be set too large,in order to minimize the difference between the measured dose and the planned dose in the region of steep gradient and find as early as possible when the multi-leaf collimator control system performs improperly.

Objective To evaluate the radiation method and resuh of 450 patients received TBI(total body irradiation).Methods Single-dose Measurement was used to mark dose of TLD(thermo luminescence dosimeter).The values of actual dose in body midline were evaluated by calculating and correcting mean dose of incidence and emergence.Radiation methods:In four-field Irradiation.diagonals of fields coinside with the longitudinal axis of the patients,patient in supine and lateral positions received two pairs of parallel opposite radiation.Scheme of TBI came from a preparative radiation about one week before,and this four-field and equal-in-dose(about 10%of TBI)preparative radiation offered US the optimal scheme with aminimal dose non-uniformity by adjusting different dose proportion of supine and lateral position.In small field irradiation,patients received one pair of parallel opposite radiation from lateral side sitting on a special stool with backrest,the stool can be rotated CW or CCW,pedals can be move forward or backward and fixed.In opposite lateral irradiation,similar to four-field irradiation,patients received one pair of horizontal opposite radiation only in supine position.Five of these patients received FTBI(Fractional TBI). Results The average non-uniformity in midline of patients in four-field irradiation group(87 patients).small field irradiation group(91patients)and opposite lateral irradiation group(272 patients)is respectively ±8.1%,±7.4% and ±4.9%. Conclusions It iS a important process for QA and Qc to measure the dose of incidence and emergence real-timely with TLD or semiconductor dosimeter.We can adopt small field irradiation when the field iS not large enough to contain the patient from head to foot,and it showed advantages over four-field irradiation in treatment process and outcomes.We found the uniformity in body midline would be much better in supine position with diagonal＞180 cm than that in four-field irradiation and small field irradiation with diagonal＜110 cm.We compared supine position irradiation with opposite lateral irradiation,only to find which has its strong point.And actually we considered that FTBI treatment booth can be used more often in anterior and posterior parallel fields irradiation,patient semi-sitted,repeatedly received forward and backward radiation. In spit of not possessing radio-biological advantages as FTBI,STBI(Single TBI)is still a practical form of TBI.

Objective To investigate the clinical efficacy of vallarta combined with folic acid in treatment of elderly hypertensive nephropathy.Methods 120 patients of essential hypertension with renal failure in Weifang People’s Hospital were divided into control group and observation group according to the odd and even numbers.The observation group was given vallarta and folic acid,the control group were given vallarta.4 weeks later,the effect of two groups were evaluated.Systolic and diastolic blood pressure,serum cretonne,blood urea nitrogen and 24h urinary protein were measured before and after treatment. Results The patients after treatment systolic and diastolic pressure was significantly better than control group, the difference was statistically significant(P<0.05),serum creatinine,blood urea nitrogen and 24h urine protein test results were better than control group,the difference was statistically significance(P<0.05).The total effective rate of observation group was better than control group(P<0.05),the obvious effective rate of observation group was significantly better than control group(P<0.01).Conclusion Combination of valsartan and folic acid in treatment of elderly hypertensive nephropathy has a higher total effective rate,while significantly lower blood pressure,serum creatinine,blood urea nitrogen and 24h urinary protein.

Objective To establish a sandwich enzyme-linked immunosorbent (ELISA) method for early diagnosis of hepatitis C. Methods Immunization of Balb/c mice with hepatitis C core antigen were prepared by genetic engineering. Mouse monoclonal antibodies (McAb) to anti-HCV-core Ag were obtained. A sandwich ELISA kit for detecting HCV-core Ag was developed by using four strains of anti-HCV-core Ag McAb. One hundred and twenty five serum specimens with increased ALT but negative for anti-HCV, anti-HIV, and anti-Tp tests were tested. Results Nine of the 125 specimens were positive for HCV-core Ag. Conclusion The double sandwich ELISA kits for detecting HCV-core Ag may be useful for the early diagnosis of hepatitis C .

Objective To study the effects of a synthetic miR3619-5p mimics on bladder carcinoma cell lines of EJ and T24 in vitro.Methods EJ and T24 cells were cultured in vitro and treated with three different processing:negative control group(tinfection with dsControl),positive control group(infection with dsP21-322) and the experimental group(infection with miR-3619-5p)during October 2015 to March 2016.Real-time fluorescent quantitative PCR (qPCR) was performed to detect the expression of p21 mRNA,cell cycle protein D1 (CyclinD1) and cell cycle-dependent kinase (CDK4 and CDK6) mRNA.Western Blot method was conducted to evaluate the expression of p21,CyclinD1 and CDK4 and CDK6 proteins;the change of cell cycle was displayed by flow cytometric analysis.Colony formation assay was used to test the ability of single cancer cell clone proliferation.Cell proliferation assay(MTS) was implemented to observed the inhibitive effect of cell proliferative potential.Results qPCR results showed that miR-3619-5p upregulated p21 mRNA expression (P ＜ 0.05),while the expression of CyclinD1,CDK4 and CDK6 were a little lower(P ＜ 0.05) in EJ and T24cells,respectively.Western Blot analysis testified that the expressions of p21,CyclinD1,CDK4 and CDK6 were difference among groups.Flow cytometry displayed that,the G0/ G1 phase increased significantly after transfected with miR-3619-5p and dsP21-322,compared with dsControl group(P ＜ 0.05),indicating that the cell cycle block in G0/G1 phase.Cell colony formation assay certified that the colony formation rates were less in the groups of miR-3619-5p and dsP21-322 than in that of dsControl group(P ＜ 0.05).Cell proliferation assay demonstrated that,cell proliferation ability decreased obviously when transfected with miR-3619-5p and dsP21-322 (P ＜0.05),compared with dsControl group.Conclusions miR-3619-5p could up-regulate the expression of p21 by RNA activation pathway and remarkably induced cell cycle arrest in G0/G1 phase,inhibiting the proliferation of bladder cancer cells.

Objective To compare the dose to the contralateral breast, ipsilateral lung, and the whole lung in the tangential field radiotherapy for primary breast cancer using the dynamic wedge or physical wedge. Methods With thirteen breast cancer patients chosen, the dose distribution was computed for the plan used in practical treatment with the dynamic wedge and physical wedge. Plans were compared using dose volume histograms for the contralateral breast, ipsilateral lung and the whole lung. As for the contralateral breast, the dose distributions were not computed for the whole breast but computed for the two regions similar to a rectangular area in the axial slice and parts of the whole breast. The mean dose was used to evaluate CB1, CB2 and ipsilateral lung, and V_ 20 was used to evaluate the whole lung. The treatment planning system used was Varian CadPlan. An ionization chamber in a water phantom was used to measure some point doses to simulate the dose to the contralateral breast. Results When using the 30? dynamic wedge, the mean dose to CB1 and CB2 was 1.5%-3.9% and 1.1%- 2.6% , and the mean dose to the ipsilateral lung was 4.1%-14.7%. When using the 30? physical wedge, the mean dose to CB1 and CB2 were 1.5%-4.4% and 1.2%-3.0%, respectively, and the mean dose to the ipsilateral lung was 4.4%-15.2%. The values of V_ 20 were equal. When using the 15? dynamic wedge, the mean dose to CB1 and CB2 decreased compared to 15? physical wedge, but the value reduced was smaller than when using 30? wedge. Also, the measured results verified that the dose to the normal tissue is reduced using the dynamic wedge. Conclusions The mean dose to the contralateral breast was reduced by using the dynamic wedge instead of the physical wedge, and the mean dose to the ipsilateral lung or V_ 20 is reduced or equal to each other. So the probability of normal tissue complication such as a second breast malignancy or pneumonitis associated with radiotherapy are likely to be reduced.