1.The application of fusion imaging in patients who received initial prostate biopsy
Wenkun, BAI ; Wei, ZHANG ; Yunxia, HUANG ; Lei, CHEN ; Bing, HU
Chinese Journal of Medical Ultrasound (Electronic Edition) 2017;14(4):310-313
Objective To investigate the application of fusion imaging in the initial prostate biopsy.Methods Retrospective analysis was made on 40 patients who underwent initial ultrasound-guided prostate biopsy in Shanghai Jiao Tong University Affiliated 6th People's Hospital from August 2014 to May 2015.All patients underwent preoperative magnetic resonance imaging (MRI) scans one week prior to surgery and the results showed that all patients had suspicious positive prostate cancer lesions,while there were no positive findings in the same area in sonography.All patients with prostate cancer have been confirmed by pathologic examination.Image fusion technology was used to guide the biopsy of lesions which were suspected as prostate cancer by MRI,and then the prostate underwent systematic biopsy by 10 needles under the guide of ultrasound.R× C Chi-square test was used to compare the positive ratio among imaging fusion biopsy,systematic biopsy and combined method in the diagnosis of prostate cancer.Fourfold table Chi-square test was used to compare to undetected rate between fusion imaging biopsy and systematic biopsy in the diagnosis of prostate cancer.The differences of detection rate in the Gleason score more than 7 points of prostate cancer between fusion imaging biopsy and systematic biopsy was compared by Fisher exact test.Results In this group of 40 patients with prostate biopsy,14 cases (35.0%) were diagnosed prostate cancer by systematic biopsy,19 cases (47.5%) were diagnosed prostate cancer by image fusion biopsy,and 22 cases (55.0%) were diagnosed prostate cancer by systematic biopsy combined with image fusion.The difference of diagnostic positive rate among combined method of biopsy,image fusion biopsy and systematic biopsy had not statistically significant (P > 0.05).Three cases (13.6%,3/22) of prostate cancer patients were missed in image fusion method group,and 8 cases (36.4%,8/22) of prostate cancer patients have not been diagnosed by systematic biopsy,which indicated the umdetected rate of systematic biopsy is higher than that of image fusion biopsy in prostate cancer diagnosis,and there was a statistical difference between the two groups (x2=8.338,P=0.005).Among 19 cases of prostate cancer patients who were diagnosed by image fusion biopsy method,Gleason score were greater than 7 points in 15 cases (78.9%,15/22).Among 14 cases of prostate cancer patients who were diagnosed by systematic biopsy method,Gleason score were greater than 7 points in 6 cases (42.9%,6/14).The positive rate of Gleason score ≥ 7 points in fusion imaging biopsy was higher than that of systematic biopsy,which had a statistical difference (Fisher exact probability method,P=0.039).Conclusion Image fusion method can be used to reduce the tndetected rate of prostate cancer and improve the detection rate of the high-grade prostate cancer.
2.Study of low-frequency ultrasound suppress invasion of human prostate cancer cell PC-3
Wenkun BAI ; Yu WANG ; Yini CHEN ; Wei ZHANG ; Bing HU
Chinese Journal of Ultrasonography 2014;23(9):807-810
Objective To study whether ultrasound combined with microbubbles induces suppress invasion in androgen-independent prostate cancer cells PC-3 and to identify the probable mechanism.Methods Ultrasound with a frequency of 21 kHz and intensity of 46 mW/cm2 in continuous wave mode was used.Ultrasound combined with microbubbles (200 μl SonoVue) was used to treat androgen-independent human prostate cancer PC-3 cells for 30 seconds.PC-3 cells were divided into three groups:control group,ultrasound group and ultrasound combined with microbubbles group.Twelve hours after treatment,cell growth curve we drawn,and transwell chamber model was used to do cell invasion experiments in vitro.Real-time PCR was used to measure the expression matrix metalloproteinase-2 and matrix metalloproteinase-9 messenger ribonucleic acid.Results Twelve hours after treatment,cell growth was not significant difference among three groups (P > 0.05).Twelve hours after treatment,ultrasound combined with microbubbles could significantly inhibit the invasion of human prostate cancer cells (P <0.05).Treatment with ultrasound combined with microbubbles down-regulated the expression of matrix metalloproteinase-2 and matrix metalloproteinase-9 messenger ribonucleic acid.Conclusions Ultrasound combined with microbubbles inhibited the invasion in human androgen-independent prostate cancer cells through down-regulation of matrix metalloproteinase-2 and matrix metalloproteinase-9.
3.Research on quality specification of Herba Justiciae.
Wenkun LIU ; Siqiang CHEN ; Yuchun ZHOU ; Yongming LUO ; Meihua YANG
China Journal of Chinese Materia Medica 2009;34(21):2748-2750
OBJECTIVETo provide scientific basis for the utilization and development of Herba Justiciae by setting up the quality control specification of Herba Justiciae.
METHODMoisture and ash were determined by aquametry and method of ash determination. And the bioactive constituents were analyzed by HPLC.
RESULTThe contents of total ash, acid-insoluble ash, and moisture of 28 samples from different origins were determined. The quantitative analysis of chinensinaphthol methyl ether by HPLC were preformed, respectively.
CONCLUSIONThe established method can be used for the quality control of Herba Justiciae.
Asteraceae ; chemistry ; China ; Plant Extracts ; analysis ; Quality Control
4.Effects of Bruner's constructivist theory on critical thinking and practice performance of student nurse interns in internal medicine
Xiangfeng LI ; Yuxia GUAN ; Minhong YU ; Ye HE ; Chenxi MA ; Zixia HE ; Kunrong YU ; Wenkun CHEN ; Ou LI
Chinese Journal of Medical Education Research 2024;23(6):808-813
Objective:To investigate the effects of Bruner's constructivist theory on the critical thinking and practice performance of nursing students interning in internal medicine.Methods:One hundred and fifty-three undergraduate nursing students practicing in the department of internal medicine of a Beijing grade A tertiary hospital were selected by convenience sampling and divided into control group ( n=76) and experimental group ( n=77) according to the order of rotation time. The experimental group received teaching based on Bruner's constructivist theory, while the control group was given traditional teaching. SPSS 24.0 was used to perform the t test. Results:Compared with the control group, the experimental group showed a significantly higher critical thinking score [(306.13±33.00) vs. (325.03±32.09)], a significantly higher exit theory assessment score [(94.74±3.24) vs. (96.94±1.79)], a significantly higher exit skills assessment score [(86.68±11.95) vs. (90.23±9.17)], and a significantly higher degree of satisfaction with teaching [(180.08±13.35) vs. (187.91±14.50); all P<0.05]. Conclusions:Bruner's constructivist theory can help nurse students improve their critical thinking, theoretical and practical performance, and satisfaction with teaching, which enhances the effects of internal medicine nursing teaching.
5.Mechanism of Ⅲ in the treatment of proteinuria in chronic kidney disease: a network pharmacology-based study.
Huaxi LIU ; Zhihao LÜ ; Chunyang TIAN ; Wenkun OUYANG ; Yifan XIONG ; Yanting YOU ; Liqian CHEN ; Yijian DENG ; Xiaoshan ZHAO ; Xiaomin SUN
Journal of Southern Medical University 2019;39(2):227-234
OBJECTIVE:
To identify the main active components in Ⅲ and their targets and explore the mechanism by which Ⅲ alleviates proteinuria in chronic kidney disease (CKD) based on network pharmacology.
METHODS:
The active components of Ⅲ and their potential targets, along with the oral bioavailability and drug-like properties of each component were searched in the TCMSP database. The proteinuria-related targets were searched in the GeneCards database. The active component-target network was constructed using Cytoscape software, and the acquired information of the targets from ClueGO was used for enrichment analysis of the gene pathways.
RESULTS:
A total of 102 active components were identified from Ⅲ. These active components acted on 126 targets, among which 69 were related to proteinuria. Enrichment analysis revealed fluid shear stress- and atherosclerosisrelated pathways as the highly significant pathways in proteinuria associated with CKD.
CONCLUSIONS
We preliminarily validated the prescription of Ⅲ and obtained scientific evidence that supported its use for treatment of proteinuria in CKD. The findings in this study provide a theoretical basis for further study of the mechanism of Ⅲ in the treatment of proteinuria in CKD.
Biological Availability
;
Drugs, Chinese Herbal
;
chemistry
;
pharmacokinetics
;
therapeutic use
;
Humans
;
Proteinuria
;
drug therapy
;
etiology
;
metabolism
;
Renal Insufficiency, Chronic
;
complications
;
metabolism