1.Exploration and validation of optimal cut-off values for tPSA and fPSA/tPSA screening of prostate cancer at different ages
Xiaomin LIU ; Hongyuan DUAN ; Dongqi ZHANG ; Chong CHEN ; Yuting JI ; Yunmeng ZHANG ; Zhuowei FENG ; Ya LIU ; Jingjing LI ; Yu ZHANG ; Chenyang LI ; Yacong ZHANG ; Lei YANG ; Zhangyan LYU ; Fangfang SONG ; Fengju SONG ; Yubei HUANG
Chinese Journal of Oncology 2024;46(4):354-364
Objective:To determine the total and age-specific cut-off values of total prostate specific antigen (tPSA) and the ratio of free PSA divided total PSA (fPSA/tPSA) for screening prostate cancer in China.Methods:Based on the Chinese Colorectal, Breast, Lung, Liver, and Stomach cancer Screening Trial (C-BLAST) and the Tianjin Common Cancer Case Cohort (TJ4C), males who were not diagnosed with any cancers at baseline since 2017 and received both tPSA and fPSA testes were selected. Based on Cox regression, the overall and age-specific (<60, 60-<70, and ≥70 years) accuracy and optimal cut-off values of tPSA and fPSA/tPSA ratio for screening prostate cancer were evaluated with time-dependent receiver operating characteristic curve (tdROC) and area under curve (AUC). Bootstrap resampling was used to internally validate the stability of the optimal cut-off value, and the PLCO study was used to externally validate the accuracy under different cut-off values.Results:A total of 5 180 participants were included in the study, and after a median follow-up of 1.48 years, a total of 332 prostate cancer patients were included. In the total population, the tdAUC of tPSA and fPSA/tPSA screening for prostate cancer were 0.852 and 0.748, respectively, with the optimal cut-off values of 5.08 ng/ml and 0.173, respectively. After age stratification, the age specific cut-off values of tPSA in the <60, 60-<70, and ≥70 age groups were 3.13, 4.82, and 11.54 ng/ml, respectively, while the age-specific cut-off values of fPSA/tPSA were 0.153, 0.135, and 0.130, respectively. Under the age-specific cut-off values, the sensitivities of tPSA screening for prostate cancer in males <60, 60-70, and ≥70 years old were 92.3%, 82.0%, and 77.6%, respectively, while the specificities were 84.7%, 81.3%, and 75.4%, respectively. The age-specific sensitivities of fPSA/tPSA for screening prostate cancer were 74.4%, 53.3%, and 55.9%, respectively, while the specificities were 83.8%, 83.7%, and 83.7%, respectively. Both bootstrap's internal validation and PLCO external validation provided similar results. The combination of tPSA and fPSA/tPSA could further improve the accuracy of screening.Conclusion:To improve the screening effects, it is recommended that age-specific cut-off values of tPSA and fPSA/tPSA should be used to screen for prostate cancer in the general risk population.
2.Establishment and application of medical performance evaluation index system for clinicians competing for senior professional titles in cancer hospitals
Xin ZHANG ; Zijie SHAO ; Zongyan YING ; Juda CHEN ; Wei WEI ; Zhuowei LIU ; Ying SUN ; Feng ZHOU
Modern Hospital 2024;24(11):1738-1741
Following the reform of the professional title system for"Breaking Four One-sided Evaluation Criteria"—focu-sing on more than just papers,titles,academic qualifications,and awards-establishing a scientific,systematic,and comprehen-sive medical performance evaluation index system has become essential for developing medical talent teams and conducting profes-sional title assessments fundamentally.This study establishes a medical performance evaluation index system tailored for clinicians in various departments of a cancer hospital who are competing for senior professional titles.This system comprises six primary in-dicators and 18 secondary indicators,with results presented in a ranked format of medical performance.Additionally,we have al-so analyzed the corr-elation between clinicians'medical performance rankings and their professional title evaluation outcomes through practical application.The results indicate that clinicians with higher performance rankings have significantly higher suc-cess rates in evaluations(P<0.05).This index system underscores clinical practice,enhances classification-based evaluations,and supports advanced information management and precision in hospital administration,thereby providing a solid foundation for strengthening the hospital's core competitiveness.
3.Exploration and validation of optimal cut-off values for tPSA and fPSA/tPSA screening of prostate cancer at different ages
Xiaomin LIU ; Hongyuan DUAN ; Dongqi ZHANG ; Chong CHEN ; Yuting JI ; Yunmeng ZHANG ; Zhuowei FENG ; Ya LIU ; Jingjing LI ; Yu ZHANG ; Chenyang LI ; Yacong ZHANG ; Lei YANG ; Zhangyan LYU ; Fangfang SONG ; Fengju SONG ; Yubei HUANG
Chinese Journal of Oncology 2024;46(4):354-364
Objective:To determine the total and age-specific cut-off values of total prostate specific antigen (tPSA) and the ratio of free PSA divided total PSA (fPSA/tPSA) for screening prostate cancer in China.Methods:Based on the Chinese Colorectal, Breast, Lung, Liver, and Stomach cancer Screening Trial (C-BLAST) and the Tianjin Common Cancer Case Cohort (TJ4C), males who were not diagnosed with any cancers at baseline since 2017 and received both tPSA and fPSA testes were selected. Based on Cox regression, the overall and age-specific (<60, 60-<70, and ≥70 years) accuracy and optimal cut-off values of tPSA and fPSA/tPSA ratio for screening prostate cancer were evaluated with time-dependent receiver operating characteristic curve (tdROC) and area under curve (AUC). Bootstrap resampling was used to internally validate the stability of the optimal cut-off value, and the PLCO study was used to externally validate the accuracy under different cut-off values.Results:A total of 5 180 participants were included in the study, and after a median follow-up of 1.48 years, a total of 332 prostate cancer patients were included. In the total population, the tdAUC of tPSA and fPSA/tPSA screening for prostate cancer were 0.852 and 0.748, respectively, with the optimal cut-off values of 5.08 ng/ml and 0.173, respectively. After age stratification, the age specific cut-off values of tPSA in the <60, 60-<70, and ≥70 age groups were 3.13, 4.82, and 11.54 ng/ml, respectively, while the age-specific cut-off values of fPSA/tPSA were 0.153, 0.135, and 0.130, respectively. Under the age-specific cut-off values, the sensitivities of tPSA screening for prostate cancer in males <60, 60-70, and ≥70 years old were 92.3%, 82.0%, and 77.6%, respectively, while the specificities were 84.7%, 81.3%, and 75.4%, respectively. The age-specific sensitivities of fPSA/tPSA for screening prostate cancer were 74.4%, 53.3%, and 55.9%, respectively, while the specificities were 83.8%, 83.7%, and 83.7%, respectively. Both bootstrap's internal validation and PLCO external validation provided similar results. The combination of tPSA and fPSA/tPSA could further improve the accuracy of screening.Conclusion:To improve the screening effects, it is recommended that age-specific cut-off values of tPSA and fPSA/tPSA should be used to screen for prostate cancer in the general risk population.
4.Construction of an evaluation index system for the capability of comprehensive control of mountain - type zoonotic visceral leishmaniasis based on the One Health concept
Jingshu LIU ; Zhengbin ZHOU ; Xiaoxi ZHANG ; Lulu HUANG ; Zhuowei LUO ; Shenglin CHEN ; Yi ZHANG ; Shizhu LI
Chinese Journal of Schistosomiasis Control 2023;35(6):545-556
Objective To construct an evaluation index system for the capability of comprehensive control of mountain-type zoonotic visceral leishmaniasis based on the One Health concept, so as to provide insights into the control and elimination of mountain-type zoonotic visceral leishmaniasis using the One Health approach. Methods A preliminary evaluation index system was constructed based on literature review, panel discussions and field surveys. Thirty-three experts were selected from 7 provincial disease control and prevention centers in Beijing Municipality, Hebei Province, Shanxi Province, Henan Province, Sichuan Province, Shaanxi Province and Gansu Province where mountain-type zoonotic visceral leishmaniasis was endemic, and two rounds of expert consultations were conducted to screen the indicators. The positive coefficient, degree of concentration, degree of coordination, and authority of the experts were calculated, and the normalized weights of each index were calculated with the analytic hierarchy process. Results The response rates of questionnaires during two rounds of expert consultation were both 100.00% (33/33), and the authority coefficients of the experts were 0.86 and 0.88, respectively. The coefficients of coordination among experts on the rationality, importance, and operability of the indicators were 0.392, 0.437, 0.258, and 0.364, 0.335, 0.263, respectively (all P values < 0.05). Following screening, the final evaluation index system included 3 primary indicators, 17 secondary indicators, and 50 tertiary indicators. The normalized weights of primary indicators “external environment”, “internal support” and “comprehensive control” were 16.98%, 38.73% and 44.29%, respectively. Among the secondary indicators of the primary indicator “external environment”, the highest weight was seen for natural environment (66.67%), and among the secondary indicators of the primary indicator “internal support”, the lowest weight was seen for the scientific research for visceral leishmaniasis control (8.26%), while other indicators had weights of 12.42% to 13.38%. Among the secondary indicators of the primary indicator “comprehensive control”, the weight was 16.67% for each indicator. Conclusions An evaluation index system has been constructed for the capability of comprehensive control of mountain-type zoonotic visceral leishmaniasis based on the One Health concept. In addition to assessment of the effect of conventional mountain-type zoonotic visceral leishmaniasis control measures, this index system integrates the importance of top-level design, organizational management, and implementation of control measures, and includes indicators related to multi-sectoral cooperation.
5.Design, synthesis and pharmacological evaluation of 4-(3-chloro-4-(3-cyclopropylthioureido)-2-fluorophenoxy)-7-methoxyquinoline-6-carboxamide (WXFL-152): a novel triple angiokinase inhibitor for cancer therapy.
Yuqin YAO ; Zhuowei LIU ; Manyu ZHAO ; Zhengxia CHEN ; Peng LI ; Yang ZHANG ; Yuxi WANG ; Chengjian ZHAO ; Chaofeng LONG ; Xiaoxin CHEN ; Jinliang YANG
Acta Pharmaceutica Sinica B 2020;10(8):1453-1475
Angiokinases, such as vascular endothelial-, fibroblast- and platelet-derived growth factor receptors (VEGFRs, FGFRs and PDGFRs) play crucial roles in tumor angiogenesis. Anti-angiogenesis therapy using multi-angiokinase inhibitor has achieved great success in recent years. In this study, we presented the design, synthesis, target identification, molecular mechanism, pharmacodynamics (PD) and pharmacokinetics (PK) research of a novel triple-angiokinase inhibitor WXFL-152. WXFL-152, identified from a series of 4-oxyquinoline derivatives based on a structure-activity relationship study, inhibited the proliferation of vascular endothelial cells (ECs) and pericytes by blocking the angiokinase signals VEGF/VEGFR2, FGF/FGFRs and PDGF/PDGFR simultaneously . Significant anticancer effects of WXFL-152 were confirmed in multiple preclinical tumor xenograft models, including a patient-derived tumor xenograft (PDX) model. Pharmacokinetic studies of WXFL-152 demonstrated high favourable bioavailability with single-dose and continuous multi-dose by oral administration in rats and beagles. In conclusion, WXFL-152, which is currently in phase Ib clinical trials, is a novel and effective triple-angiokinase inhibitor with clear PD and PK in tumor therapy.
6.Investigation of family physicians′ needs for tertiary hospitals support in the hierarchical medical system
Xiaoyi CHEN ; Hua ZHU ; Jun XIA ; Zhuowei YU ; Songbai ZHENG
Chinese Journal of Hospital Administration 2018;34(7):536-539
Objective To learn the needs of family physicians for tertiary hospital support in the hierarchical medical system. Methods In July 2017 cluster sampling was made to 135 family physicians of Changning district of Shanghai for a " Family physicians needs questionnaire" . It covered such aspects as their demographic characteristics and their needs. The data so acquired were subject to descriptive and logical analysis. Results 99.3% of them need preferential appointment of specialists at tertiary hospitals;93.3% of them need preferential appointment of examinations; 82.2% of them need preferential outpatient visits; while 83.7% of them need preferential hospitalization and surgery scheduling. In terms of the approaches for preferential appointment of specialists, 84.4% of them prefer specialist appointment at short notice, and 73.3% of them need direct online appointment for large-scale device examinations at tertiary hospitals. In terms of mentoring scenarios, 62.2% of them prefer mentoring during outpatient rounds at fixed schedules of specialists in their community. Conclusions Tertiary hospitals are recommended to establish green pathways for referrals and priority measures in order to improve capabilities of family physicians and the shared platform in the hierarchical medical network. They are also expected to guide family physicians in their research paper writing, thus fully supporting the hierarchical medical system.
7.Therapeutic Observation of Acupuncture at Jiaji (EX-B 2) Points plus Pelvic Floor Muscle Exercises for Postpartum Stress Urinary Incontinence
Zhuowei CHEN ; Dunjian WANG ; Aiqin YUAN
Shanghai Journal of Acupuncture and Moxibustion 2017;36(3):308-311
Objective To observe the clinical efficacy of acupuncture at Jiaji (EX-B 2) points plus pelvic floor muscle exercises in treating postpartum stress urinary incontinence.Method A total of 216 patients with stress urinary incontinence were randomly divided into a treatment group and a control group, 108 cases each. The treatment group was intervened by acupuncture at Jiaji (EX-B 2) points plus pelvic floor muscle exercises, while the control group was intervened by pelvic flor muscle exercises alone. For the two groups, the treatment was given once a day, 12 sessions as a course. The total effective rates were compared after 2 treatment courses.Result The total effective rate was 90.7% in the treatment group versus 83.3% in the control group, and the difference was statistically significant (P<0.05).Conclusion Acupuncture at Jiaji (EX-B 2) points plus pelvic floor muscle exercises is an effective method in treating postpartum stress urinary incontinence, and can promote the postpartum recovery of the pelvic floor.
8. Clinical outcome of postchemotherapy retroperitoneal lymph node dissection and predicting retroperitoneal histology in advanced nonseminomatous germ cell tumours of the testis
Xiangdong LI ; Shengjie GUO ; Siliang CHEN ; Zefu LIU ; Pei DONG ; Zhiling ZHANG ; Lijuan JIANG ; Kai YAO ; Yonghong LI ; Hui HAN ; Zike QIN ; Zhuowei LIU ; Fangjian ZHOU
Chinese Journal of Surgery 2017;55(8):603-607
Objective:
To explore the clinical outcome of advanced testicular nonseminomatous germ cell cancer patients undergoing post chemotherapy retroperitoneal lymph node dissection (PC-RPLND), and to analyze the relevant prognostic factors of lymph node pathological.
Methods:
A total of 43 consecutive testicular nonseminomatous germ cell cancer patients underwent PC-RPLND between March 2001 and December 2014 in Department of Urology at Sun Yat-sen University Cancer Center were retrospectively reviewed. The average age of the patients was (29.0±11.5) years (ranging from 12 to 58 years). Before PC-RPLND, 22 patients were classified as phase Ⅱ, while 21 were phase Ⅲ. Primary tumor histology revealed seminomatous elements in 19 cases, embryonal cell carcinoma in 22 cases, yolk sac tumor in 13 cases, chorionic carcinoma in 3 cases, mature teratomatous elements in 11 and immature teratomatous elements in 2 cases. Patients were treated with cisplatin-based chemotherapy after orchectomy and then underwent surgical resection of retroperitoneal lymph nodes.After PC-RPLND, all patients underwent a periodic review including the blood routine, biochemistry routine and computed tomography or ultrasonograph of the chest, the abdomen and the pelvis. The association of pathological data with patient′s clinic features and the correlations between molecular features detected with each other were assessed by the
9.Antagonism of toll-like receptor 2 attenuates the formation and progression of abdominal aortic aneurysm.
Huimin YAN ; Bing CUI ; Xiaowei ZHANG ; Xiaoming FU ; Jun YAN ; Xiaoxing WANG ; Xiaoxi LV ; Zhong CHEN ; Zhuowei HU
Acta Pharmaceutica Sinica B 2015;5(3):176-187
Abdominal aortic aneurysm (AAA) is an inflammatory vascular disorder with high mortality. Accumulating evidence shows that toll-like receptor 2 (TLR2) plays a critical role in the regulation of wound-repairing process after tissue injury. We wondered if TLR2 signaling contributed to the pathogenesis of AAA and that targeting TLR2 would attenuate AAA development and progression. In this study, enhanced expression of TLR2 and its ligands were observed in human AAA tissue. Neutralization of TLR2 protected against AAA development and caused established AAA to regress in mouse models of AAA. In addition, TLR2-deficient mice also failed to develop AAA. The prophylactic and therapeutic effects of blocking TLR2 were accompanied by a significant resolution of inflammation and vascular remodeling, as indicated by the decreased expression or activity of MMP-2/9, α-SMA, inflammatory cytokines, and transcription factors NF-κB, AP-1 and STAT1/3 in AAA tissue. Mechanistically, blocking TLR2 decreased the expression and interaction of TLR2 and several endogenous ligands, which diminished chronic inflammation and vascular remodeling in the vascular tissue of AAA. Our studies indicate that the interactions between TLR2 and its endogenous ligands contribute to the pathogenesis of AAA and that targeting TLR2 offers great potential toward the development of therapeutic agents against AAA.
10.Preliminary results of intra-artery chemotherapy for T1G3 bladder cancer
Yunlin YE ; Zhuowei LIU ; Fangjian ZHOU ; Lijuan JIANG ; Siliang CHEN ; Qiuming HE ; Zike QIN
The Journal of Practical Medicine 2015;(20):3379-3381
Objective To analyze the outcome of intra-artery chemotherapy for T1G3 bladder cancer , and its effectiveness and safety. Methods From June 2003 to May 2014, 39 patients with T1G3 bladder cancer chose intra-artery chemotherapy (Gemcitabine plus cis-platin), and close follow-up was required after 2 cycles of chemotherapy. During the follow-up, transurethral resection of bladder tumor was performed for non-muscle invasive bladder cancer, and cystectomy was performed for muscle invasive tumor. Results Of all patients, 32 were male and 7 were female. The median age was 56 years old (range: 32-82 years), and median follow-up time was 56 months (range: 12-136 months). Nineteen patients were primary bladder cancer, and 20 were recurrent tumor. During the follow-up, 17 patients developed recurrent tumors, including 8 progressed tumors and 3 died from tumor. Two-year and 5-year progressed-free survival were 88% and 74%, and 2-year and 5-year cancer-specific survival were 97% and 89%, respectively. During 5 years′ follow-up, 81% survivor preserved intact bladder, and only 1 patient cancelled chemotherapy for adverse effect. Conclusions Intra-artery chemotherapy (GC regimen) is a choice for T1G3bladder cancer, preventing from disease progression with good tolerance.

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