1.Proteomic analysis of ginsenoside-Rh2 on inhibition of human glioma cell line SHG-44
Xinyu HONG ; Jiayue CUI ; Wenchen LI ; Bo CHEN ; Yinan LUO
Journal of Jilin University(Medicine Edition) 2006;0(06):-
Objective To explore the mechanism of ginsenoside-Rh2(G-Rh2) on inhibition of glioma by identifying differential proteins with proteomic technique. Methods The total proteins were extracted from SHG-44 cells treated with 32 ?mol?L-1 G-Rh2 for 72 h and the cells in control group,then were subjected to two-dimensional gel electrophoresis.Only spots with a fold change equal or above 1.5 and P
2.Survey on KAP of neurosurgeons toward deceased organ donation
Wenchen LI ; Ri LI ; Lixiang ZHOU ; Bo CHEN ; Chuan HE ; Jie PAN ; Haifeng WANG
Chinese Journal of Organ Transplantation 2016;37(2):101-105
Objective To investigate neurosurgeons' knowledge,attitude and practice toward deceased organ donation and provide a reference to increase organ donation rate.Method In July 2015,150 questionnaires were issued to neurosurgeons from 36 hospitals in the Jilin province.Result 142 effective questionnaires were obtained.Neurosurgeons' knowledge toward deceased organdonation was relatively good in the whole.100% (142/142) neurosurgeons were in favor of organ donation in public hospitals.95.8% (136/142) neurosurgeons were willing to cooperate in organ donation and 100% (142/142) approved legislation on brain death in China.97.2% (138/142) were in favor of economic compensation for organ donor's family.100% (142/142) neurosurgeons encountered to potential organ donors in the process of practice,but 71.8% (102/142) prompted potential organ donors' families actively and initiatively to donate.Compared with physicians with junior titles,senior physicians had more active coordination donation behavior (x2 =12.133,P=0.002).The neurosurgeons,who had higher correct answer rate about the knowledge of organ donation,were more likely to take the initiative to coordinate organ donation (x2 =16.131,P<0.001).Conclusion Professional training for neurosurgeon organ donation will contribute to promote potential organ donors in neurosurgery into actual organ donors.
3.Pharmacoeconomic evaluation of telbivudine vs. lamivudine in treating the patients with HBeAg-positive and negative chronic hepatitis B.
Chinese Journal of Hepatology 2009;17(8):569-573
OBJECTIVETo evaluate long-term cost effectiveness of telbivudine and lamivudine for the treatment of CHB.
METHODSCost effectiveness was conducted from social health insurance perspective. A Markov model was established based on disease progression pattern and the data from the 2 years GLOBE clinical trial. The information of annual medical expenditure and quality-of-life assessment for different CHB-related diseases was obtained from literature. Incremental cost per life year or quality-adjusted life year gained was measured.
RESULTSCompared with lamivudine, the incremental cost for 1 additional QALY gained with telbivudine in treating HBeAg-positive and -negative CHB were 5403 yuan and 28239 yuan in Beijing, as well 4916 yuan and 29618 yuan in Guangzhou, respectively. According to national economic burden of CHB-related diseases, the ICER with telbivudine vs lamivudine were 1282 yuan and 31565 yuan for HBeAg-positive and -negative CHB.
CONCLUSIONAccording to WHO recommendation for ICER threshold, telbivudine is cost effective in treating HBeAg-positive and -negative CHB, as compared to lamivudine.
Adult ; Antifungal Agents ; economics ; therapeutic use ; China ; epidemiology ; Cost-Benefit Analysis ; DNA, Viral ; blood ; Drug Costs ; statistics & numerical data ; Economics, Pharmaceutical ; Female ; Hepatitis B e Antigens ; blood ; Hepatitis B, Chronic ; complications ; drug therapy ; economics ; epidemiology ; Humans ; Insurance, Long-Term Care ; Lamivudine ; economics ; therapeutic use ; Liver Cirrhosis ; etiology ; prevention & control ; Male ; Markov Chains ; Middle Aged ; Models, Economic ; Nucleosides ; economics ; therapeutic use ; Prescription Drugs ; economics ; Pyrimidinones ; economics ; therapeutic use ; Quality-Adjusted Life Years ; Thymidine ; analogs & derivatives
4.Utilization of a scintillator detection system for quality assurance in carbon-ion and proton therapy
Yongqiang LI ; Hsi WENCHEN ; Jun ZHAO ; Zhi CHEN ; Wei SUN
Chinese Journal of Radiation Oncology 2021;30(7):697-701
Objective:A two-dimensional (2D) in-house-built scintillator detection system (SDS) was utilized for quality assurance of the active spot scanning proton and heavy ion accelerator, aiming to establish a rapid detection method and provide reference for the quality of proton and heavy ion beam (spot position, spot size, virtual source-to-axis distance, profile depth dose distribution and beam range).Methods:The SDS consisted of a ceramic gadolinium-sulfoxylate phosphor-scintillating screen, a mirror and a commercial digital camera. The dose distribution image was obtained based on scintillator, mirror reflector and optical signal acquisition device to transform the proton and heavy ion beam into visible light through sulfur gadolinium oxide scintillator and collect visible light information to meet the clinical requirements for the quality of proton and heavy ion beam.Results:The deviation of spot position measured by multifilament proportional chamber and the SDS was less than 1mm. The differences of beam spot size measured by multifilament proportional chamber and the SDS were (1.40±0.59)mm for protons, and (0.5±0.08)mm for carbon ions. For 429.25MeV/u carbon, the virtual source-to-axis distance (V SAD) at the x-and y-axes was 751.8cm and 805.6cm. And difference between physical distance and virtual source-to-axis distance was less than 1%. The range of 287.5MeV/u carbon measured by SDS was 160mm. Conclusions:The in-house-built scintillator detector can measure beam spot position and size, virtual source, depth distribution curve and range, which can be used as an effective tool for quality assurance control of proton and heavy ion therapy.
5.Effects of Yiqi Huoxue Fang on necrosis and apoptosis of myocardial cell in rats with myocardial infarction
Xi CHEN ; Shuwen GUO ; Jiangong WU ; Wenchen LIU ; Lu ZHANG ; Zhaoduo SU ; Jiani WU ; Fanghe LI
Journal of Beijing University of Traditional Chinese Medicine 2017;40(8):646-652
Objective To explore the protective effects of Yiqi Huoxue Fang(Qi-boosting Blood-activa-ting Formula,YQHXF)on rat myocardium with myocardial infarction and its possible mechanism by ob-serving the effects of YQHXF on necrosis and apoptosis of myocardial cell necrosis.Methods Male SD rats were randomly divided into the sham-surgery group,model group,YQHXF group,and perindopril group.Animal model of myocardial infarction was built by ligating coronary artery on the left anterior de-scending branch.Subsequently,YQHXF group received intragastric administration of Yiqi Huoxue Fang (compound medicine,21 g/kg)once per day,and perindopril group was given perindopril (0.4 mg/kg)once a day;Sham-surgery group and model group received sterile distilled water without drug inter-vention.The blood in abdominal aorta was drawn,and the tissue on the peripheral area of the myocardial infarction was taken at two fixed time points (on the 7 th and 28 th day)after administration.Ultrasonic ech-ocardiography was used to detect changes on cardiac morphology and function in rats:left ventricular e-jection fraction (LVEF),left ventricular short axis ratio (LVFS),left ventricular end systolic diameter (LVIDs),left ventricular end-diastolic diameter (LVIDd);serum superoxide dismutase (SOD),gluta-thione peroxidase (gsh-px),creatine kinase (CK),lactate dehydrogenase (LDH),aspertate amin-otransferase (AST),and troponin (cTnT)were measured with ELISA method.Protein imprinting meth-od (Western Blot)was used to measure cytochrome C (CytC)and protein expression of cysteine aspartic acid and protease-3 (caspase-3)in the border zone of infarcted area.Results On the 7 th day,com-pared with the model group,LVEF and LVFS in YQHXF group and perindopril group decreased without statistical significance(P >0.05).On the 28 th day,compared with the model group,LVEF and LVFS in YQHXF group and perindopril group increased significantly(P >0.05 ).LVIDs and LVIDd decreased markedly(P <0.05);LVIDd in perindopril group decreased sharply (P <0.05),and decrease presen-ted on LVIDs without statistical significace (P >0.05).On the 7 th and 28 th day,compared with the mod-el group,CK-MB,LDH,AST,cTnT in YQHXF group and perindopril group decreased significantly (P<0.05),and SOD,GSH-PX increased significantly.On the 7 th day,protein expression of cytC,caspase-3 decreased significantly in YQHXF group and perindopril group(P <0.05).Conclusion Administra-tion of YQHXF at early stage can effectively improve myocardial infarction on cardiac structure and func-tion in rats with myocardial infarction,improve oxidation resistance of myocardial cell,and inhibit myo-cardial apoptosis and necrosis.
6.Regulatory relationship between lncRNA KCNQ1OT1 and miR-146a-3p in preeclampsia
Fangrong CHEN ; Linmei ZHENG ; Dongcai WU ; Humin GONG ; Hui CEN ; Wenchen CHEN
Chinese Journal of Obstetrics and Gynecology 2020;55(8):535-543
Objective:To observe the changes of the expression level of long non-coding RNA (lncRNA) KCNQ1OT1 and microRNA (miR)-146a-3p in placenta tissues of preeclampsia (PE) patients, as well as their effect and mechanism on the biological functions of trophoblast cells.Methods:A total of 45 cases of hospitalized PE patients in Hainan General Hospital from July 2017 to July 2018 were selected as the PE group, 55 normal pregnant women during the same period were chosed as the control group. The expression level of KCNQ1OT1 mRNA and miR-146a-3p in the placenta tissues between two groups were detected by using quantitative real time (qRT)-PCR. Pearson′s test was furtherly analyzed the correlation between them. Human trophoblast cell line (HTR8/SVneo) were randomly divided into control and lipopolysaccharide (LPS) groups, and then LPS group were divide into four sub-groups,included LPS group, short hairpin RNA (sh)-KCNQ1OT1 (after silencing the expression of KCNQ1OT1), miR-146a-3p inhibitor and sh-KCNQ1OT1+miR-146a-3p inhibitor. The targeting relationship between KCNQ1OT1 and miR-146a-3p were predicted by bioinformatics software and confirmed by luciferase assay. The cell proliferation and invasion capacities were respectively detected by cell counting kit-8 (CCK-8) and transwell assay. The expression level of KCNQ1OT1 mRNA and miR-146a-3p were detected by qRT-PCR and the protein expression level of CXC chemokine ligand 12 (CXCL12) and CXC chemokine receptor type 4 (CXCR4) were tested by western blot.Results:(1) The mRNA expression level of KCNQ1OT1 in the placenta of PE group was lower than that of control group (0.23±0.03 vs 0.51±0.04, P<0.05), and the miR-146a-3p expression level was higher than that of the control group (0.49±0.03 vs 0.31±0.03, P<0.05), there were statistical significant differences between the two groups. (2) Luciferase assay showed that there was a targeting relationship between KCNQ1OT1 and mir-146a-3p. Compared with the control group, the mRNA expression level of KCNQ1OT1 in the LPS group were significantly decreased (0.91±0.03 vs 0.35±0.03, P<0.05), and the expression level of miR-146a-3p were significantly increased (0.22±0.03 vs 0.63±0.04, P<0.05). The cell proliferation, invasion and migration capacities and the protein expression of CXCL12 and CXCR4 significantly reduced in the LPS group compared with control group (all P<0.05). The mRNA expression level of KCNQ1OT1 (0.23±0.03) in the sh-KCNQ1OT1 group were further decreased, the expression of miR-146a-3p (0.85±0.03) were further increased, and the cell proliferation, invasion and migration capacities and the protein expression of CXCL12 and CXCR4 were all further reduced compared with control group,there were significant difference between two groups (all P<0.05). Comparing the miR-146a-3p inhibitor group, and sh-KCNQ1OT1+miR-146a-3p inhibitor group with the sh-KCNQ1OT1 group, respectively, the expression level of KCNQ1OT1 mRNA (0.78±0.04 vs 0.50±0.03) increased, and the expression level of miR-146a-3p (0.42±0.03 vs 0.46±0.03) decreased, the cell proliferation, invasion and migration capacities and the protein expression of CXCL12 and CXCR4 were all increased ,there were statistically significant differences (all P<0.05). Conclusion:KCNQ1OT1 could target the regulation of miR-146a-3p through CXCL12/CXCR4 pathway in the proliferation, invasion an migration of HTR8/SVneo cells, which may be involved in the pathogenesis of PE.
7.A meta-analysis of esophagectomy: the comparative study of Ivor-Lewis operation and Sweet operation.
Hong ZHANG ; Jian WANG ; Wenchen WANG ; Lin ZHOU ; Jiakuan CHEN ; Bo YANG ; Yanmin XIA ; Tao JIANG
Chinese Journal of Gastrointestinal Surgery 2014;17(9):892-897
OBJECTIVEInvestigate the best surgical resection of esophageal cancer by comparing the efficacy and safety between Ivor-Lewis esophagectomy and Sweet esophagectomy.
METHODSThe relevant literatures comparing Ivor-Lewis esophagectomy with Sweet esophagectomy were searched through PubMed, Embase, the Cochrane Library, Google scholar, CNKI, CBM, VIP, WanFang Data. RevMan 5.2 software was used for data analysis.
RESULTSA total of 4106 patients in 15 studies were reviewed and the data were pooled for analysis. Meta-analysis showed that, compared with the Sweet group, Ivor-Lewis operative time was significantly longer(pooled mean difference=57.40; 95%CI:42.43 to 72.38; P=0.000), operative bleeding was significantly higher(pooled mean difference=28.39, 95%CI:4.06 to 52.72, P=0.02); the number of lymph node dissection significantly more(pooled mean difference=4.19, 95%CI:3.06 to 5.32, P=0.000); No significant difference was present in hospital stay, vocal cord paralysis, chylous leakage, pulmonary complications, anastomotic leakage(all P>0.05). The 5-year survival between the two groups showed no significant difference(P=0.52).
CONCLUSIONSThe two kinds of operation have the same long term effect. Compared with Ivor-Lewis operation, Sweet operation is easier to perform, less time consuming and more tolerable. Ivor-Lewis operation can dissect more lymph nodes than Sweet operation, without increased complications.
Esophageal Neoplasms ; surgery ; Esophagectomy ; methods ; Humans ; Lymph Node Excision ; Lymph Nodes ; pathology
8.Metrology analysis and thoughts of literatures on tinnitus associated with sudden deafness based on CiteSpace
Si CHEN ; Jianning ZHANG ; Yan HUO ; Wenchen LING ; Jiaqian WU ; Xinyu ZHAO ; Ming LI
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2024;59(7):719-726
Objective:To explore the incidence of sudden deafness accompanied with tinnitus, the selection of examination protocols and treatment, and to provide reference for the establishment of new guidelines for sudden deafness.Methods:CiteSpace software was used for analysis and data mining to analyze and summarize the computer-retrieved articles on diagnostic examination and treatment of sudden deafness accompanied with tinnitus collected from CNIC, Wanfang and Web of Science databases from 2011 to 2021.Results:A total of 207 randomized controlled studies were retrieved in this study, including 121 in Chinese and 86 in English. Finally, 74 Chinese literatures and 16 English literatures were included. Among the 74 valid Chinese literatures, 64 (86.5%) were accompanied with tinnitus, 58 (78.4%) with dizziness/vertigo, 25 (33.8%) with aural fullness, 10 (13.5%) with headache, 4 (5.4%) with insomnia, 4 (5.4%) with a mixture of dizziness and tinnitus, and 2 (2.7%) with vomiting. Among the 16 English literatures, 15 (93.8%) were accompanied with tinnitus, 12 (75.0%) with vertigo, 1 (6.3%) with aural fullness, and 1 (6.3%) with a mixture of various symptoms. Among the 64 Chinese articles mentioning tinnitus, only 9 mentioned tinnitus matching tests, and 1 mentioned that the treatment for tinnitus accompanying symptoms was sound therapy and psychological counseling. The incidence rates of tinnitus accompanying four different types of sudden deafness, from low to high, are as follows: low-to-mid frequency, 82.4%; mid-to-high frequency, 90.7%; complete deafness, 92.4%; and flat type, 92.8%.Conclusion:Tinnitus is the most common accompanying symptom of sudden deafness, and tinnitus matching test is an effective evaluation method. When establishing a scientific, comprehensive, and systematic diagnosis and treatment system or guidelines for sudden deafness, attention should be paid to the diagnosis and treatment of tinnitus symptoms and their adverse psychological reactions, in order to reduce the incidence of tinnitus patients in the later stage of recovery from sudden deafness.
9.A meta-analysis of esophagectomy:the comparative study of Ivor-Lewis operation and Sweet operation
Hong ZHANG ; Jian WANG ; Wenchen WANG ; Lin ZHOU ; Jiakuan CHEN ; Bo YANG ; Yanmin XIA ; Tao JIANG
Chinese Journal of Gastrointestinal Surgery 2014;(9):892-897
Objective Investigate the best surgical resection of esophageal cancer by comparing the efficacy and safety between Ivor-Lewis esophagectomy and Sweet esophagectomy. Methods The relevant literatures comparing Ivor-Lewis esophagectomy with Sweet esophagectomy were searched through PubMed, Embase, the Cochrane Library, Google scholar, CNKI, CBM, VIP, WanFang Data. RevMan 5.2 software was used for data analysis. Results A total of 4106 patients in 15 studies were reviewed and the data were pooled for analysis. Meta-analysis showed that, compared with the Sweet group, Ivor-Lewis operative time was significantly longer (pooled mean difference=57.40; 95%CI:42.43 to 72.38;P=0.000), operative bleeding was significantly higher (pooled mean difference=28.39, 95%CI:4.06 to 52.72, P=0.02); the number of lymph node dissection significantly more (pooled mean difference=4.19, 95%CI:3.06 to 5.32, P=0.000); No significant difference was present in hospital stay, vocal cord paralysis, chylous leakage, pulmonary complications, anastomotic leakage (all P>0.05). The 5-year survival between the two groups showed no significant difference (P =0.52). Conclutions The two kinds of operation have the same long term effect. Compared with Ivor-Lewis operation, Sweet operation is easier to perform, less time consuming and more tolerable. Ivor-Lewis operation can dissect more lymph nodes than Sweet operation , without increased complications.
10.A meta-analysis of esophagectomy:the comparative study of Ivor-Lewis operation and Sweet operation
Hong ZHANG ; Jian WANG ; Wenchen WANG ; Lin ZHOU ; Jiakuan CHEN ; Bo YANG ; Yanmin XIA ; Tao JIANG
Chinese Journal of Gastrointestinal Surgery 2014;(9):892-897
Objective Investigate the best surgical resection of esophageal cancer by comparing the efficacy and safety between Ivor-Lewis esophagectomy and Sweet esophagectomy. Methods The relevant literatures comparing Ivor-Lewis esophagectomy with Sweet esophagectomy were searched through PubMed, Embase, the Cochrane Library, Google scholar, CNKI, CBM, VIP, WanFang Data. RevMan 5.2 software was used for data analysis. Results A total of 4106 patients in 15 studies were reviewed and the data were pooled for analysis. Meta-analysis showed that, compared with the Sweet group, Ivor-Lewis operative time was significantly longer (pooled mean difference=57.40; 95%CI:42.43 to 72.38;P=0.000), operative bleeding was significantly higher (pooled mean difference=28.39, 95%CI:4.06 to 52.72, P=0.02); the number of lymph node dissection significantly more (pooled mean difference=4.19, 95%CI:3.06 to 5.32, P=0.000); No significant difference was present in hospital stay, vocal cord paralysis, chylous leakage, pulmonary complications, anastomotic leakage (all P>0.05). The 5-year survival between the two groups showed no significant difference (P =0.52). Conclutions The two kinds of operation have the same long term effect. Compared with Ivor-Lewis operation, Sweet operation is easier to perform, less time consuming and more tolerable. Ivor-Lewis operation can dissect more lymph nodes than Sweet operation , without increased complications.