1.Management of primary vesicoureteral reflux in children.
Yan CHEN ; Jie DING ; Jian-ping HUANG
Chinese Journal of Pediatrics 2004;42(10):750-752
2.Advances in effects and mechanisms of ADAMs in tumor progression
Qin CHEN ; Linghua MENG ; Jian DING
China Oncology 2001;0(02):-
ADAMs is a family of transmembrane proteins with multi domains and multiple functions,which play important roles in many(patho-)physiological processes.They are upregulated in a variety of tumors and possess protein shedding and adhesive activities,which showed that they could be useful as tumor biomarkers and promising targets for designing new anti-tumor drugs.This review focuses on the roles ADAMs play in the process of tumor development and the potential application in cancer therapy.
3.Research progress concerning ulnar collateral ligament reconstruction for ulnar collateral ligament injury in overhead throwing athletes
Zhenming LIANG ; Jian DING ; Bin CHEN
Chinese Journal of Orthopaedic Trauma 2021;23(2):179-184
The ulnar collateral ligament (UCL) of the elbow is the primary stabilizer to resist valgus stress. Its injury is common in overhead throwing athletes, mainly caused by repeated valgus forces, and can cause elbow pain and affect the career of athletes. A common treatment of ulnar collateral ligament injury for overhead throwing athletes is ulnar collateral ligament reconstruction (UCLR). At present, the UCLR techniques have been constantly improved, mainly in graft structure, incision exposure, management of the ulnar nerve, and methods of humeral and ulnar fixation. This paper is to review the anatomy and biomechanics of UCL, as well as techniques, key points, postoperative complications and rehabilitation of UCLR so as to deepen the understanding of UCLR in clinicians.
4.Pancreas cancer survival rates in Qidong during the years 1972-2011
Lulu DING ; Jianguo CHEN ; Jian ZHU ; Yonghui ZHANG ; Yongsheng CHEN
Chinese Journal of Pancreatology 2015;15(2):73-77
Objective Survival rates of pancreas cancer during the years 1972-2011,from a population-based cancer registry in Qidong,were analyzed in order to provide information for the prognosis assessment and control of this disease.Methods The deadline of the last follow-up for survival status of 3279 registered cases was April 30th,2012.DCO (death certificates only) cases were excluded,leaving 3272 cases for survival analysis.Cumulative observed survival rate (OS) and relative survival rate (RS) were calculated by the SURV3.01 software.Results The 1-,5-,10-,15-,20-,25-,and 30-year OSs were 12.69%,4.87%,3.76%,3.07% 2.66%,1.94% and 1.28%,respectively,and OSs in male were 12.39%,4.67%,3.41%,2.77% 2.22%,1.35%,0.75%,and in female were 13.08%,5.12%,4.22%,3.45%,3.28%,3.00% 2.40%.The 1-,5-,10-,15-,20-,25-,and 30-year RSs were 13.34%,6.30%,6.47%,7.34% 9.27%,10.33% and 10.65%,respectively;and the RSs in male were 13.06%,6.14%,6.06% 6.91%,8.06%,7.44%,6.44%,and in female were 13.70%,6.47%,6.99%,7.88%,10.91% 15.25%,19.12%.The 5-year OS rates at age groups of 15-34,35-44,45-54,55-64,65-74 and >75 were 17.81%,6.34%,8.32%,5.04%,3.75% and 3.82%,respectively.The 5-year RSs were 17.97%,6.47%,8.65%,5.47%,4.68% and 8.03%.Five-year OSs increased from 2.01% in 1973-1977 to 5.11% in 2003-2007.Conclusions The overall survival rate of pancreas cancer has increased during the past 40 years in Qidong,but the improvement is marginal.
5.Survival analysis of patients with non-Hodgkin lymphoma in Qidong from 1972 to 2011
Jian ZHU ; Jianguo CHEN ; Yonghui ZHANG ; Yongsheng CHEN ; Lulu DING
Journal of Leukemia & Lymphoma 2015;24(10):608-612
Objective To analyze the survival rates of patients with non-Hodgkin lymphoma (NHL) in Qidong from 1972 to 2011,in order to provide the basis for the prognosis assessment and the control of this cancer.Methods A total of 1 472 registered NHL cases were followed up to April 30, 2012.Cumulative observed survival (OS) rate and relative survival (RS) rate were calculated using Hakulinen method performed by the SURV 3.01 software developed at the Finnish Cancer Registry.Results The 1-, 3-, 5-, 10-, 20-and 30-year OS rates were 32.48 %, 19.30 %, 15.78 %, 12.76 %, 9.54 % and 7.63 %, and the RS rates were 33.49 %, 21.18 %, 18.46 %, 17.79 %, 19.37 % and 22.44 %, respectively.The 1-, 3-, 5-, 10-, 20-and 30-year RS rates of males vs females had no statistically significant differences (x2 =3.32, P =0.767).The 5-year RS rates of age groups 0-14, 15-34, 35-44, 45-54, 55-64, 65-74, and ≥75 were 22.99 %, 20.51%,18.42 %, 20.96 %, 18.72 %, 17.32 %, 10.60 %, and the 10-year RS rates were 23.04 %, 15.55 %, 15.91%,16.36 %, 18.59 %, 19.70 %, 20.93 %, respectively.The age group 0-14 had the highest 5-and 10-year RS rates.Remarkable improvement could be seen in the 5-year RS rate from 7.76 % in 1973-1977 to 26.79 % in 2003-2007, and the 10-year OS rate from 6.63 % in 1973-1977 to 15.52 % in 1998-2002, respectively.Conclusions The outcome of NHL in Qidong has been improved gradually from 1972 to 2011, but the gaps of survival rates in NHL patients between China and the developed countries still exist.Research on the diagnosis and treatment of NHL should be further emphasized.
6.Long-term survival trends of bladder cancer from 1972 to 2011 in Qidong
Yongsheng CHEN ; Jianguo CHEN ; Jian ZHU ; Yonghui ZHANG ; Lulu DING
China Oncology 2016;26(9):727-734
Background and purpose:There are few studies referring to population-based cancer survival of bladder cancer for more than forty years in China. This paper was to offer basis for assessing long-term survival trends of bladder cancer and the prognosis of this cancer through analysis of the survival rates based on cancer report documents from 1972 to 2011 in Qidong.Methods:The deadline of the last follow-up for survival status of the 1 619 registered cases was Apr. 2012. Cumulative observed survival rate (OS) and relative survival rate (RS) were calculated using Hakulinen’s method performed by the SURV3.01 Software which is developed by Finnish Cancer Registry.Results:The one-, three-, five-, ten-, fifteen-, twenty-, and thirty-year OS rates were 59.91%, 43.49%, 35.98%, 26.91%, 21.30%, 18.37% and 12.24%; and the one-, three-, five-, ten-, fifteen-, twenty-, and thirty-year RS rates were 64.07%, 53.02%, 50.06%, 52.42%, 59.59%, 76.39% and 115.75%, respectively. For males, these OS rates were 60.84%, 43.91%, 36.95%, 27.31%, 21.49%, 18.29% and 12.59%, and RS rates were 65.23%, 53.95%, 52.02%, 54.57%, 62.59%, 79.12% and 117.07%, respectively; For females, these OS rates were 56.61%, 42.03%, 32.44%, 25.65%, 20.78%, 18.80% and 0%, and RS rates, 59.99%, 49.91%, 43.37%, 45.86%, 51.21%, 69.02% and 0%, respectively. There were no statistical differences couldbe found between both sexes (P=0.256). Five-year RS rates of age groups 15-34, 35-44, 45-54, 55-64, 65-74, and more than 75 were 49.10%, 67.53%, 62.77%, 53.92%, 46.59% and 39.85%, and 10-year RS rates, 49.79%, 61.23%, 52.99%, 48.21%, 54.94% and 51.21%, respectively. Remarkable improvement could be seen for the five-, ten-, and fifteen-year RS rates in this setting since 1980’s.Conclusion:The survival outcome from Qidong registered cases with bladder cancer shows gradual progress during the past 2 decades. Early detection and improvement of therapies may be the factors affecting the prognosis of bladder cancer. Although the disparities in survival rates between Qidong and the developed countries are getting narrower, potential for survival improvement still exists.
7.Study on influencing factors of common chemical disinfectants used to metal
Jian GU ; Yueying CHEN ; Shixin ZHOU ; Xiaodong ZHANG ; Ping DING
Chinese Journal of Disease Control & Prevention 2001;5(1):8-11
Objective In order to find out influencing factors of corrosiveness of common chemical disinfectants used at present for medical instruments on varied metal material, and to offer scientific bases for working -out corresponding state standards. Methods Liquid instruments disinfectants containing chlorine and glutaraldehyde compound disinfectant were chose to take an example to study their corrosiveness to varied sorts and type s of the metal. Sing le related factors were researched by contrast test study in the process of dete rmining metal corrosion rate (R value, mm*a-1) citing from GB10124-88 me thod. Results Varied chemical disinfectants had different metal R valu e. R value was in fluenced by kinds of metal pieces, sorts of soaked vessel material, drying tempe rature, whether changing liquid disinfectants or not and water quality, while d ifferent capacity of balance measure had no effect on R value. Concl usi ons R value was affected by kinds and types of metal pieces and other factors. These fac tors should be considered sufficiently while determining or comparing corrosiven ess of chemical disinfectants to soaked metal.
8.The application study of 31P MR spectroscopy on differential diagnosis of bone malignancy and inflammation
Feizhou DU ; Shiyi DING ; Jian WANG ; Jun CHEN ; Enquan ZHANG
Chinese Journal of Radiology 2008;42(9):961-965
Objective To explore the value of 31P magnetic resonance spectroscopy(31P MRS)for differential diagnosis of bone malignancy and inflammation.Methods Radiography.MRI and 31P MRs were performed on 20 bone malignancy patients,22 bone and soft-tissue inflarnmation patients and 32 healthy voluntecrs.The spectra were analyzed by measuring the areas under the peaks of various metabolites,and by calculating the pH from the Pi shift relative to PCr.The data were analyzed by one-way analysis of vailance (ANOVA).Results Analysis of the 31P MRS data suggested differences among the bone malignancy,the inflammation and the healthy group.The mean of PME/β-ATP ratio(1.24±0.37)in malignancy group increased significantly(P<0.01).The mean of PDE/β-ATP(2.21.±0.37),Pi/β-ATP(1.46±0.43)in inflammation group was higher than that of the other two groups(P<0.05),but the ratio of PME/β-ATP (0.19±0.10)wag not increasing.The LEP/T31P(0.10±0.02),PCr/T31P(0.45±0.03)and ATP/T31P (0.45±0.03)ratios in control group were significantly difierent from the two others(P<0.01).The mean of intracellular pH in malignancy group was 7.45±0.16,higher than that in control group(7.05±0.06),and in inflaruination group(7.20±0.13)(P<0.01).Conclusions The significant increase of PME and intraeellular pH is of great value in diagnosis of bone malignancy.Combined conventional radiography and MRI.31PMRs would be a simple,no-.invasive and effective diagnostic method.
9.A three-dimensional transrectal ultrasound imaging system.
Yimin CHEN ; Jian QI ; Mingyue DING ; Xuming ZHANG
Journal of Biomedical Engineering 2014;31(4):917-922
A three-dimensional (3D) transrectal ultrasound (TRUS) imaging system is presented in this paper. The 3D imaging system is used for diagnosing diseases of prostate. The 3D image is reconstructed by a series of two-dimensional image data which is obtained through rectum. It can be a guide to prostate needle biopsies. The system is built by two parts: hardware and software. In the hardware, the mechanical device, stepper motor, control circuit, B Mode TRUS and personal computer (PC) workshop are presented. The software includes the firmware of micro control unit and software of the PC workshop. In order to evaluate the performance of the 3D imaging system, we did experiments with water and agar phantoms, and the results demonstrated the system's ability of 3D imaging with high-precision.
Biopsy, Needle
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Humans
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Imaging, Three-Dimensional
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instrumentation
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Male
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Phantoms, Imaging
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Prostate
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diagnostic imaging
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Rectum
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Software
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Ultrasonography
10.Reversal of multidrug resistance and inhibition of DNA topoisomerase Ⅱ by emulsion of seed oil of Brucea Javanica
Tao TANG ; Linghua MENG ; Lingji CHEN ; Jian DING ;
Chinese Pharmacological Bulletin 1986;0(05):-
AIM To explore the reversal effect of multidrug resistance (MDR) and the influence on topoisomerase (TOPO) activity by emulsion of seed oil of Bbrucea Javanica (ESOBJ) in vitro . METHODS Cytotoxic effects of ESOBJ against sensitive and resistance tumor cells were deter mined by MTT assay. Influences of ESOBJ on the catalytic activities of TOPO Ⅰ and TOPO Ⅱ were measured by TOPO Ⅰ mediated negatively super coiled pBR322 relaxation and TOPOⅡ mediated kDNA decatenation. RESULTS 0 025 g?L -1 of ESOBJ could reverse MDR in various MDR cell lines such as K562/A02?MCF 7/ADM and KB/VCR. DNA TOPO Ⅱ mediated kDNA decatenation experiment showed marked inhibitory action of ESOBJ on TOPO Ⅱ activity at the concentration of 0 31 g?L -1 and TOPO Ⅱ activity was totally inhibited by ESOBJ at the concentration of 2 5 g?L -1 . On the other hand, ESOBJ exhibited no influence on DNA TOPO I mediated pBR322 relaxation and on DNA directly. CONCLUSION ESOBJ could reverse MDR to a certain extent in vitro , and inhibit the activity of TOPO Ⅱ significantly.