1.The pathogenesis and surgical treatment of gallstone associated with cirrhotic portal hypertension
Chinese Journal of Postgraduates of Medicine 2017;40(6):568-570
Gallstone associated with cirrhotic portal hypertension is not uncommon in clinic, and its incidence rate increased year by year, presenting 2- 3 times of the incidence rate of non-cirrhotic patients. Cirrhotic portal hypertension can lead to a variety of local and systemic physiological changes, and it can promote the incidence of gallstones. Due to the dysfunction of the liver and the blood coagulation which are caused by cirrhotic portal hypertension, the surgical difficulty and risk increases significantly. Currently, scholars still have certain controversy in the options of surgical methods and surgical staging. Now let me review and summarize the pathogenesis and surgical treatment of gallstone associated with cirrhotic portal hypertension.
2.Clinical study of unrelated cord blood transplantation in patients with hematologic malignancies in single center
Zimin SUN ; Xinchen FANG ; Huilan LIU ; Liangquan GENG ; Xingbing WANG ; Kaidi SONG ; Weibo ZHU ; Zuyi WANG
Chinese Journal of Organ Transplantation 2010;31(2):84-88
Objective To retrospectively analyze the engraftment, transplant-related complications and survival after unrelated cord blood transplantation (UCBT) in patients with hematologic malignancies. Methods Fifty consecutive patients with hematological malignancies (median age, 19 years; median weight, 53 kg) were treated with UCBT in single center from April 2000 to August 2009. Thirty-nine patients were high-risk or refractory. Double UCB grafts were used for 26 patients, while single UCB graft for 24 patients. Myeloablative conditioning was given to 45 cases and non-myeloablative regimens to 5 cases. All patients were given a combination of cyclosporin A (CsA) and mycophenolate mofetil (MMF) for graft-versus-host disease (GVHD) prophylaxis. Results The median total nucleated cell (TNC) dose was 4.0 (range, 1.95-16.24)×10~7 TNC/ kginfused, and CD34~+ cell dose was 2.74(range, 0.67-29.28)×10~5/kginfused. Forty-two of 50 patients acquired engraftment with implantation rate being 86%. The median time to engraftment (absolute neutrophil count>500/mm~3 and platelets 20 000/L) was 19 and 34 days. The cumulative incidence of neutrophil engraftment by day 42 was 86.3%(95% confidence interval [CI] 0.769-0.957); the cumulative incidence of platelets engraftment by day 120 was 72.3% (95% CI 0.620-0.821). Twenty cases developed acute GVHD, and the incidence of acute GVHD of grades Ⅲ/Ⅳ by day 100 was 7.1%. The incidence of chronic GVHD within 2 years was 17.4%. During a median follow-up period of 22 months (range 4-116), Overall 6-month, 1-year and 2-year survival rate was 66.2%(95% CI 0.590-0.734), 57.4%(95% CI 0.496-0.652), 54.2%(95% CI 0.462-0.622), respectively. For the patients with non-advanced hemotologic malignancies, 6-month, 1-year and 2-year survival rate was 73.2% (95% CI 0.659-0.805), 66.1% (95% CI 0.579-0.743), and 62.2% (95% CI 0.542-0.682) respectively. Five cases relapsed. The cumulative incidence of relapse within 2 years was 16.2% (95% CI 0.099-0.225). Twenty-one cases died mainly due to infection. Conclusion UCBT could be safely and effectively used for adult patients with hematologic malignancies.
3.Mechanism of radiosensitization effect of berberine on human nasopharyngeal carcinoma in hypoxia
Chi ZHANG ; Qu ZHANG ; Xi YANG ; Baixia YANG ; Qin QIN ; Hongcheng ZHU ; Jia LIU ; Xinchen SUN
Chinese Journal of Radiological Medicine and Protection 2014;(9):663-667
Objective To investigate the radiosensitiation effect of berberine on human nasopharyngeal carcinoma ( NPC) in hypoxia condition and explore the underlying mechanisms. Methods MTT assay, clonogenic assay and flow cytometry were performed to analyze cell proliferation, colony formation and apoptosis, respectively. Male nude mice inoculated subcutaneously with CNE-2 cells were used to examine the radiosensitization effect of berberine in vivo. The expressions of HIF-1α and VEGF were assessed by Western blot. Results Berberine efficiently inhibited the proliferation of CNE-2 cells in time-dependent and dose-dependent fashions with an IC50 of ( 14?9 ± 2?2 ) μmol/L. Clonogenic survival assay showed that berberine ( 5 μmol/L ) sensitized CNE-2 cells to ionizing radiation in hypoxia and its SERD0 was 1?27. Under hypoxic condition, berberine alone (5, 15 μmol/L) could induce apoptosis (t=5?01, 9?02,P<0?05) and it further promoted 8 Gy radiation-induced apoptosis (t =5?31, 9?91,P <0?05). Moreover, berberine significantly delayed the tumor growth in the combination group (berberine +irradiation) compared with the mice received irradiation alone or PBS (t =2?96, 14?52, P <0?05). Immunobloting assay showed that berberine inhibited the upregulation of HIF-1α and VEGF induced by hypoxia in CNE-2 cells. Conclusion Berberine confers radiosensitivity on hypoxic NPC in vitro and in vivo, which is probably associated with the downregulation of HIF-1α and VEGF expressions.
4.Comparative study of StarGVIBE and VIBE sequences in MRI of esophagus
Jianwei WANG ; Lulu XU ; Yudong ZHANG ; Nana SUN ; Xisheng LIU ; Xinchen SUN
Journal of Practical Radiology 2019;35(10):1668-1671
Objective To explore the feasibility of the Star-VIBE sequence in esophageal MRI,and compare it with the conventional VIBE sequence.Methods Fifteen healthy volunteers underwent Star-VIBE and VIBE sequences scanning after injecting MRI contrast agent.Two groups of MR images were independently scored in the ability to display esophageal wall,respiratory motion artifacts,cardiovascular pulsation artifacts,overall motion artifacts and overall image quality by the two radiologists,respectively.SNR of esophagus,CNR between esophagus and paravertebral muscles were measured and compared.Results Star-VIBE was superior to VIBE in the ability to display esophageal wall,respiratory motion artifacts,cardiovascular pulsation artifacts,overall motion artifacts and overall image quality (the ability to display esophageal wall:Z=-3.268,P=0.001;respiratory motion artifacts:Z=-3.205,P=0.001;cardiovascular pulsation artifacts:Z=-4.644, P=0.000;overall motion artifacts:Z=-3.904,P=0.000;overall image quality:Z=-2.808,P=0.005),while no significant differences were found on SNR and CNR between the two sequences (SNR:t=-1.5 3 9 ,P=0.1 3 5 ;CNR:t=-0.874,P=0.3 89 ).Conclusion The Star-VIBE sequence is insensitive to the physiological motion artifacts,and it can provide better image quality than the conventional VIBE sequence in esophageal MRI.
5.The deep integration of party building and hospital operation in public hospitals in the new era
Xiaohong GU ; Xinchen LIU ; Caicong WU ; Xia OUYANG
Modern Hospital 2023;23(12):1823-1825,1828
It is essential that public hospitals,as the main body of China's health care service system,must uphold the overall leadership of the Communist Party of China(CPC)to achieve high-quality development in the new era,which requires the deep integration of Party building and hospital operation.Since the CPC's 18th National Congress,public hospitals have actively strengthenedprimary-level Party building by consolidating the foundation,which has largely contributed to advancing the Healthy China Initiative and optimizing the allocation of medical resources.However,there remain some problems in the integration of Party building and hospital operation,such as insufficient understanding of the integration and simple methods to achieve it,lead-ing to inadequate integration in some hospitals.By analyzing of the causes of above problems,based on Sun Yat-sen Memorial Hospital,Sun Yat-sen University's practices in Party building,the author actively explores the effective path of deep integration of party building and business work in public hospitals from the aspects of promoting party building and theoretical learning,sys-tem design,team building and business characteristics.In order to provide useful references for public hospitals to achieve high-quality development in the new era.
6.Summary of the best evidence for non-pharmacological management of Parkinson's disease patients with depression
Xiaoyu LIU ; Chao ZHANG ; Yan LING ; Wenguang XIE ; Xinchen YANG ; Yulu DENG
Chinese Journal of Modern Nursing 2024;30(1):70-76
Objective:To retrieve, screen, and summarize the best evidence for non-pharmacological management of Parkinson's disease patients with depression, so as to provide evidence-based basis for medical and nursing staff to standardize the non-pharmacological management.Methods:Following the "6S" evidence model, relevant literature was systematically searched from top to bottom in UpToDate, British Medical Journal, Joanna Briggs Institute Evidence-Based Health Care Center Database, National Institute for Health and Clinical Excellence, Guidelines International Network, Agency for Healthcare Research and Quality, Scottish Intercollegiate Guidelines Network, Medlive, Parkinson's Society of Canada, Cochrane Library, CINAHL, PubMed, Web of Science, Embase, China Biology Medicine, China National Knowledge Infrastructure, and WanFang Data. The search period was from database establishment to March 31, 2023. After conducting methodological quality evaluation based on literature standards, evidence was extracted and summarized from literature that met the standards, and the level of each evidence was determined.Results:A total of 22 articles were included, including one clinical decision-making, three guidelines, 14 systematic reviews, and four expert consensuses. A total of 30 best evidence were formed from six aspects, namely screening and evaluation, psychological intervention, physical therapy, traditional Chinese medicine therapy, exercise, and health education.Conclusions:The best evidence for non-pharmacological management of Parkinson's disease patients with depression summarized provides evidence-based basis for the development of non-pharmacological management plans for Parkinson's disease patients with depression.
7.The expression and clinical significance of neutrophil myeloperoxidase in patients with myeloperoxidase-antineutrophil cytoplasmic antibody associated vasculitis
Yue LIU ; Xinchen PENG ; Junnan XU ; Meijuan ZHENG ; Zongwen SHUAI
Chinese Journal of Internal Medicine 2022;61(9):1016-1022
Objective:To investigate the expression and clinical significance of neutrophil myeloperoxidase (MPO) in patients with MPO-antibody associated vasculitis (AAV).Methods:Thirty-six newly diagnosed MPO-AAV patients who were hospitalized in the First Affiliated Hospital, Anhui Medical University from July 2018 to June 2021 were enrolled,and 36 age and sex matched healthy subjects were selected as controls. Neutrophil MPO level was detected by flow cytometry (FCM) and MPO mRNA was tested by real time quantitative polymerase chain reaction (RT-qPCR) in all subjects. Serum complement fragment C5 (C5a) and MPO in both groups and serum MPO-anti-antineutrophilic cytoplasmic antibody(ANCA) in MPO-AAV group were measured by enzyme linked immunosorbent assay (ELISA), while the disease activity was evaluated by Birmingham vasculitis activity score-V3 (BVAS-V3).Results:Compared with the heathy control group, the expression of MPO mRNA in neutrophils, serum MPO and complement C5a in MPO-AAV group were significantly higher[MPO mRNA:30.2±11.5 vs. 1.9±0.6, P<0.001;MPO:(112.0±68.7) IU/L vs. (87.4±22.9) IU/L, P=0.01; C5a:(187.3±90.3) ng/ml vs. (107.3±31.1) ng/ml, P<0.001; respectively], while the mean fluorescence intensity (MFI) of MPO in neutrophils were significantly lower [ 1 343.3±723.4 vs. 2 868.0±1 136.5, P<0.001]. In MPO-AAV group, the expression of neutrophil MPO mRNA was positively correlated with serum MPO-ANCA and MPO levels ( r=0.537, P=0.001 and r=0.358, P=0.032; respectively). Multiple regression analysis suggested that neutrophil MPO mRNA expression was positively correlated with serum MPO-ANCA level ( β=0.695, P=0.006); neutrophil MPO level was negatively correlated with serum MPO-ANCA, MPO and complement C5a levels ( r=-0.335, P=0.046; r=-0.372, P=0.026; r=-0.577, P<0.001; respectively). Further, neutrophil MPO level was negatively correlated with serum complement C5a level ( β=-0.374, P=0.043). BVAS-V3 was positively correlated with MPO mRNA expression in neutrophils, serum MPO-ANCA, MPO and complement C5a ( r=0.598, P<0.001; r=0.599, P<0.001; r=0.537, P=0.001; r=0.415, P=0.012; respectively) and negatively correlated with MPO level in neutrophils ( r=-0.342, P=0.041). In multiple regression analysis it suggested that BVAS-V3 was positively correlated with MPO mRNA expression in neutrophils ( β=0.511, P=0.002). Conclusion:In MPO-AAV patients, MPO synthesis and release in neutrophils are both significantly increased, which might be influenced by serum MPO-ANCA and C5a, respectively. Furthermore, MPO synthesis activity in neutrophils is an independent factor related to disease activity.
8.Determination of the concentration of hydroxychloroquine and its metabolites in peripheral blood of systemic lupus erythematosus patients and its clinical significance
Xinchen PENG ; Menglu PAN ; Junnan XU ; Yue LIU ; Zongwen SHUAI
Chinese Journal of Rheumatology 2022;26(2):79-86
Objective:To investigate factors associated with the concentration of hydroxychloroquine (HCQ) and its metabolites in peripheral blood of patients with systemic lupus erythematosus (SLE) who were receiving long-term oral HCQ treatment.Methods:SLE patients who had been taking HCQ for more than 3 months were recruited. Clinical characteristics, laboratory test results and SLE disease activity index (SLEDAI) scores were examined. The concentrations of HCQ and its metabolites from peripheral blood were measured by high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS). Student's-test and Nonpara-metric tests were used to compare quantitative data, Chi-square and Fisher's exact tests were used to analyze qualitative data. Correlation between the test results was assessed by correlation coefficient. Variables with P values less than 0.05 in univariate analysis were entered into a logistic regression model. Results:In total, 191 SLE patients on long-term HCQ treatment were included in the analysis. Medians of HCQ blood concentrations ([HCQ]), desethylhydroxychloroquine (DHCQ) blood concentrations ([DHCQ]), desethylchloroquine (DCQ) blood concentrations ([DCQ]) and bisdesethylchloroquine (BDCQ) blood concentrations ([BDCQ]) were 523.19 (402.63, 677.88) ng/ml, 291.79 (212.30, 432.51) ng/ml, 49.37 (35.00, 73.05) ng/ml, 21.78(14.37, 52.46) ng/ml respectively. On multivariate analysis, weight-adjusted oral HCQ dose [ OR(95% CI)=1.366 (1.053, 1.772) , P=0.019], the course of hydroxychloroquine [ OR (95% CI) =0.991 (0.984, 0.999), P=0.026], estimated glomerular filtration rate [ OR(95% CI)=0.984 (0.971, 0.997), P=0.014] and platelet count [ OR (95% CI)=1.010 (1.005, 1.015), P<0.001] were associated with [HCQ]. [HCQ], [DCQ], [BDCQ], [BDCQ]/[HCQ] were negatively correlated with estimated glomerular filtration rate (eGFR) ( r=-0.20, P=0.006; r=-0.19, P=0.010; r=-0.26, P<0.001; r=-0.15, P=0.044, respectively) after adjusted for age, course of disease, duration of HCQ treatment and weight adjusted HCQ dosage, [DHCQ]/[HCQ] was negatively correlated with the SLEDAI score ( r=-0.16, P=0.027) when the effects of glucocorticoid was controlled, [BDCQ]/[HCQ] among different renal function levels was statistically significant ( H=12.46, P=0.014). Conclusion:The factors associated with HCQ blood concentrations in SLE patients on long-term oral HCQ treatment are weight-adjusted HCQ dosage, duration of hydroxychloroquine intake and renal function. In addition, [BDCQ] is closely correlated with renal function, [DHCQ] is correlated with SLE disease activity.
9.Pharmacoeconomic Evaluation of Pembrolizumab in First-line Treatment of Advanced Non-small Cell Lung Cancer with High PD-L 1 Expression
Guoqiang LIU ; Shuo KANG ; Xinchen WANG
China Pharmacy 2021;32(11):1351-1356
OBJECTIVE:To ev aluate the economics of pembrolizumab versus first-line chemotherapy in the treatment of advanced non-small cell lung cancer with high programmed cell death protein ligand 1(PD-L1)expression from the perspective of Chinese healthcare system. METHODS :Published KEYNOTE- 042 clinical trial data and relevant literature data were used to establish a Markov model to evaluate the economics of pembrolizumab versus first-line chemotherapy with a 20-years horizon and a 3-week cycle length ,discounting costs and utilities using a discount rate of 5%. One-way sensitivity analysis and probabilistic sensitivity analysis were used to evaluate the stability of the model results. RESULTS :The base-case results showed that pembrolizumab yield additional 1.62 QALYs more than first-line chemotherapy ,with an incremental cost of 54 648 yuan;the incremental cost-utility ratio was 33 686 yuan/QALY,which was lower than the willingness-to-pay threshold (WTP)in China. The results of one-way sensitivity analysis showed that the price of nivolumab ,the price of pembrolizumab and the proportion of patients who received second-line immunotherapy in first-line chemotherapy group had the greatest impact on the results. The results of probabilistic sensitivity analysis showed that the probability of pembrolizumab to be cost-effective gradually increased within the WTP of 0-140 000/QALY. When WTP was 70 892 yuan/QALY(one time of the per capita GDP of China in 2019),the probability of pembrolizumab to be cost-effective was 95%. When WTP beyond 100 000 yuan/QALY,the probability of pembrolizumab to be cost-effective was 100%. CONCLUSIONS :Pembrolizumab has economic advantages than first-line chemotherapy in the first-line treatment of non-small cell lung cancer with high PD-L 1 expression in China.
10.Network pharmacology analysis based on potential mechanism of dandelion-mulberry leaf in treatment of acute myeloid leukemia
Xinchen ZHOU ; Shuhan DONG ; Zhuo ZHANG ; Mingmei SHEN ; Xiangjun WANG ; Ying LI ; Limei LIU
Journal of Jilin University(Medicine Edition) 2024;50(4):1087-1097
Objective:To analyze the role of dandelion and mulberry leaf in the progression of acute myeloid leukemia(AML)by network pharmacology,and to clarify the active components and their mechanisms in treating AML.Methods:The active components of dandelion and mulberry leaf were screened by Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP).The targets were predicted by SwissTargetPrediction Database.The AML-related genes and protein targets were retrieved from the SymMap Database,the GeneCards Human Gene Database,the DisGeNET Database,and the Online Mendelian Inheritance in Man(OMIM)Database.The AML-related genes and target genes of dandelion and mulberry leaf were compared by comparative analysis and were identify by the enrichment genes,followed by Gene Ontology(GO)functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes(KEGG)signaling pathway enrichment analysis.The drug-active component-target network and protein-protein interaction(PPI)network were constructed by Cytoscape 3.8.0 software,and the core genes were selected by CytoNCA plugin;the molecular docking was conducted by AutoDock software.Results:After filtering by databases,39 active components were identified,and 148 common targets between dandelion-mulberry leaf and AML were collected.The GO functional enrichment analysis mainly involved cytokine-mediated signaling pathways,positive regulation of kinase activity,and oxidative stress responses.The KEGG signaling pathway enrichment analysis focused on the phosphatidylinositol 3 kinase/protein kinase B(PI3K-AKT)signaling pathway,the tumor necrosis factor(TNF)signaling pathway,and the Janus kinase/signal transducer and activator of transcription(JAK-STAT)signaling pathway.The key targets were identified by topological analysis including signal transducer and activator of transcription 3(STAT3),epidermal growth factor receptor(EGFR),protein kinase B1(AKT1),recombinant human epidermal growth factor(EGF),vascular endothelial growth factor A(VEGFA),oncogene MYC,tumor protein P53(TP53),mitogen-activated protein kinase 3(MAPK3),cysteiny asparate specific protease-3(CASP3),oncogene SRC,heat shock protein 90 alpha family class A member 1(HSP90AA1),tenascin XB1(CTNNB1),phosphoinositide kinase-3 catalytic subunit alpha(PIK3CA),interleukin 6(IL-6),TNF,mitogen-activated protein kinase 1(MAPK1),and phosphatidylinositide kinase-3 regulatory subunit 1(PIK3R1).The molecular docking results showed the highest affinity pairing to be taraxerol with MYC(-8.74 kcal·mol-1),and quercetin,kaempferol,luteolin,and artemetin demonstrated good binding affinities with various targets.Conclusion:The main active components of dandelion-mulberry leaf,such as quercetin,taraxerol,kaempferol,luteolin,and artemetin,may exert the anti-AML effect by regulating AKT1,STAT3,HSP90AA1,IL-6,and MAPK1;regulation the PI3K-AKT signaling pathway may be the critical mechanism of anti-AML effect by dandelion-mulberry leaf.