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Wang P, Qian XW, Jiang WJ, Wang HS, Hou J, Sun JQ, Wang XC, Zhai XW. [Analysis of efficacy and prognosis of allogeneic hematopoietic stem cell transplantation for the treatment of combined immunodeficiency]. Zhonghua Er Ke Za Zhi 2024; 62:444-450. [PMID: 38623012 DOI: 10.3760/cma.j.cn112140-20230815-00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Objective: To evaluate the efficacy of allogeneic hematopoietic stem cell transplantation for the treatment of combined immunodeficiency (CID) and explore prognostic risk factors. Methods: In this retrospective cohort study, clinical characteristics, laboratory tests and prognosis of 73 CID children who underwent allogeneic hematopoietic stem cell transplantation from February 2014 to April 2022 in the Children's Hospital of Fudan University were analyzed. Based on the subtypes of diseases, all patients were divided into severe combined immunodeficiency disease (SCID) group and other CID group. Based on the types of donors, all patients were divided into matched sibling donor group, matched unrelated donor group, unrelated cord blood group, and haploidentical donor group. Kaplan-Meier method and Log-Rank test were used to analyze the survival data. Cox regression was used to analyze prognostic factors. Results: Among the 73 patients, there were 61 (84%) males and 12 (16%) females. Fifty-five (75%) patients were SCID, and 18 (25%) patients were other CID. Donor source included 2 (3%) matched sibling donors (MSD), 3 (4%) matched unrelated donors (MUD), 64 (88%) unrelated cord blood (UCB), and 4 (5%) haploidentical donors. The age at transplant was 10.7 (5.9, 27.5) months, and the follow-up time was 36.2 (2.5, 62.9) months. The 3-year overall survival rate of 73 patients with CID was (67±6) %. No significant difference was found in the 3-year overall survival rates between patients with SCID (55 cases) and other CID (18 cases) ((64±7) % vs. (78±10) %, χ2=1.31, P=0.252). And no significant difference was found in the 3-year overall survival rates among patients who received MSD or MUD (5 cases), UCB (64 cases), and haploidentical donor (4 cases) transplant (100% vs. (66±6)% vs. (50±25) %, χ2=2.30, P=0.317). Cox regression analysis showed that the medical history of sepsis (HR=2.55, 95%CI 1.05-6.20, P=0.039) and hypoalbuminemia at transplant (HR=2.96, 95%CI 1.14-7.68, P=0.026) were independent risk factors for the prognosis of allogeneic hematopoietic stem cell transplantation in pediatric patients with CID. Conclusions: Allogeneic hematopoietic stem cell transplantation is an effective treatment for CID. The medical history of sepsis and hypoalbuminemia at transplant were risk factors for prognosis. Enhancing infection prevention and nutritional intervention before transplant can improve patient prognosis.
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Affiliation(s)
- P Wang
- Department of Hematology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X W Qian
- Department of Hematology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - W J Jiang
- Department of Hematology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - H S Wang
- Department of Hematology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - J Hou
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - J Q Sun
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X C Wang
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X W Zhai
- Department of Hematology, Children's Hospital of Fudan University, Shanghai 201102, China
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Jiang WJ, Ao S, Cui YY, Lu L, Wang CN. [Clinicopathological and molecular characteristics of esophageal carcinoma with ductal differentiation: analysis of 17 cases]. Zhonghua Bing Li Xue Za Zhi 2024; 53:276-281. [PMID: 38433056 DOI: 10.3760/cma.j.cn112151-20230720-00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Objective: To investigate the clinicopathological features and molecular genetic characteristics of esophageal carcinoma with ductal differentiation, and to summarize the experiences in its diagnosis and treatment. Methods: A total of 17 cases of esophageal carcinoma with ductal differentiation diagnosed in Ningbo Clinical Pathological Diagnosis Center, Ningbo, China from June 2011 to December 2022 were collected. The clinical information and pathological diagnosis was reviewed. The tumor histological features and immunohistochemical results were analyzed. The next-generation sequencing was performed to detect and analyze the gene mutations in tumor samples. Results: The 17 patients included in this study were 54-77 years old, with a median age of 66 years. There were 16 males and 1 female. Among them, 9 cases were mainly carcinoma with ductal differentiation. The squamous epithelium on the tumor's surface was accompanied by high-grade intraepithelial neoplasia. The tumor and atypical squamous epithelium were transitional, and the focus was accompanied by various proportions of squamous cell carcinoma component (less than 10%). The other 8 cases were mostly squamous cell carcinoma, basaloid squamous cell carcinoma or sarcomatoid carcinoma with various degrees of tumor specific differentiation and focal area of carcinoma with ductal differentiation (less than 10%). The tumor cells in the area with ductal differentiation were mainly arranged in small tubes, while the tubes showed a double-layer structure, including the inner cells and outer cells of the lumen. Immunohistochemical results showed that the outer cells of the tumorous tubules expressed p63, p40, CK5/6 and CK34βE12, while the inner cells expressed CK7. Compared with esophageal squamous cell carcinoma reported in the literature, the frequency of gene mutations such as MYC (P=0.002), TP63 (P=0.002), CDKN1C (P=0.002) and NFE2L2 (P=0.045) was significantly lower in this group of cases. At the signaling pathway level, the mutation frequency of NOTCH signaling pathway (P=0.041) was significantly higher, while the mutation frequencies of NRF2 pathway (P=0.013) and PI3K pathway (P=0.009) were significantly lower than that of esophageal squamous cell carcinoma. Conclusion: Esophageal carcinoma with ductal differentiation is a type of esophageal carcinoma with unique morphology, and its molecular changes are also significantly different from those of conventional esophageal squamous cell carcinoma.
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Affiliation(s)
- W J Jiang
- Ningbo Clinical Pathology Diagnosis Center, Ningbo 315021, China
| | - S Ao
- Ningbo Clinical Pathology Diagnosis Center, Ningbo 315021, China
| | - Y Y Cui
- Ningbo Clinical Pathology Diagnosis Center, Ningbo 315021, China
| | - L Lu
- Ningbo Clinical Pathology Diagnosis Center, Ningbo 315021, China
| | - C N Wang
- Ningbo Clinical Pathology Diagnosis Center, Ningbo 315021, China
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Jiang WJ, Ruan M, Wang SY, Wang CF, Xie J. [Clinicopathological analysis of 13 cases of adrenal adenomatoid tumor]. Zhonghua Bing Li Xue Za Zhi 2024; 53:180-182. [PMID: 38281788 DOI: 10.3760/cma.j.cn112151-20230905-00129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Affiliation(s)
- W J Jiang
- Ningbo Clinical Pathology Diagnosis Center,Ningbo 315021, China
| | - M Ruan
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - S Y Wang
- Ningbo Clinical Pathology Diagnosis Center,Ningbo 315021, China
| | - C F Wang
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - J Xie
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Huang J, Liao LY, Jiang WJ, Li YH, Lu BM, Wen ZP, Li FJ, Fang DL, Lu GM. Identification of new subtypes and potential genetic signatures in triple-negative breast cancer using weighted gene co-expression network analysis. Eur Rev Med Pharmacol Sci 2024; 28:603-614. [PMID: 38305604 DOI: 10.26355/eurrev_202401_35057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
OBJECTIVE Triple-negative breast cancer (TNBC) is a heterogeneous disease with aggressive behavior and poor prognosis. Here, we used gene expression profiling to define new subtypes of TNBC, which may improve prevention and treatment through personalized medicine. MATERIALS AND METHODS Gene expression profiles from the public datasets GSE76250, GSE61724, GSE61723, and GES76275 were subjected to co-expression analysis to identify differentially expressed genes (DEGs) between TNBC and non-TNBC tissues. Consistency clustering was used to define TNBC subtypes, whose correlation with gene modules was analyzed. Enrichment analysis was used to identify module genes' biological functions and pathways. Single-sample gene set enrichment analysis was used to assess immune cell infiltration in the different TNBC subtypes, and the ChAMP package was used to examine methylation sites in TNBC. RESULTS A total of 4,958 DEGs in TNBC were identified, which showed the same expression differences across all datasets as in the dataset GSE76250 and clustered into 9 co-expression modules. TNBC samples clustered into two subtypes based on nine hub genes from the modules. Class I showed the most significant correlation with module 1, whose genes were related mainly to interleukin-1 response, while class II showed the most significant correlation with module 6, whose genes were related mainly to the transforming growth factor-β pathway. Class I was significantly enriched in cell cycle and DNA replication, and tumors of this subtype showed lower immune cell infiltration than class II tumors. Tumor infiltration by Th2 cells correlated positively with the expression of MCM10 and negatively with the expression of PREX2. A greater methylation of CIDEC, DLC1, EDNRB, EGR2 and SRPK1 correlated with better prognosis. CONCLUSIONS Class I TNBC, for which a useful biomarker is MCM10, may be associated with a worse prognosis than class II TNBC, for which PREX2 may serve as a biomarker.
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Affiliation(s)
- J Huang
- Department of Gland Surgery, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China.
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Wei ZL, Qian XW, Wang P, Jiang WJ, Wang HS, Shen C, Wang WJ, Hou J, Wang YH, Huang Y, Wang XC, Zhai XW. [Analysis of risk factors and prognosis of cytomegalovirus infection post umbilical cord blood stem cell transplantation in children with primary immunodeficiency diseases]. Zhonghua Er Ke Za Zhi 2022; 60:1019-1025. [PMID: 36207848 DOI: 10.3760/cma.j.cn112140-20220501-00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the risk factors and outcomes of cytomegalovirus (CMV) infection post umbilical cord blood stem cell transplantation (UCBT) in children with primary immunodeficiency diseases (PID). Methods: Clinical data of 143 PID children who received UCBT in the Children's Hospital of Fudan University from January 2015 to June 2020 were collected retrospectively. CMV-DNA in the plasma was surveilled once or twice a week within 100 days post-UCBT. According to the CMV-DNA test results, children were divided into the CMV-infected group and the CMV-uninfected group. The incidence and risk factors of CMV infection were analyzed. At 1-month post-UCBT, the absolute lymphocyte count, ratio of lymphocyte subsets and immunoglobulin levels were compared between those whose CMV infection developed 1-month later post-UCBT and those not. Mann-Whitney U test and chi-squared test were used for comparision between groups. Kaplan-Meier survival analysis was used to analyze the impact of CMV infection on survival. Results: Among 143 patients, there were 113 males and 30 females, with a age of 14 (8, 27) months at UCBT. Chronic granulomatosis disease (n=49), very-early-onset inflammatory bowel disease (n=43) and severe combined immunodefiency (n=29) were the three main kinds of PID. The rate of CMV infection was 21.7% (31/143), and the time of infection occurring was 44 (31, 49) days post-UCBT. The incidence of recurrent CMV infection was 4.2% (6/143) and refractory CMV infection was 4.9% (7/143).There was no significant difference in the first time CMV-DNA copy and peak CMV-DNA copy during treatment between the recurrent CMV infection group and the non-recurrent CMV infection group (32.8 (18.3, 63.1)×106 vs. 22.5 (13.2, 31.9)×106 copies/L, Z=-0.95, P=0.340;35.2 (20.2, 54.6)×106 vs. 28.4 (24.1, 53.5)×106copies/L, Z=-0.10, P=0.920), so were those between the refractory CMV infection group and non-refractory CMV infection group (21.8 (13.1, 32.2)×106 vs. 25.9 (14.2, 12.2)×106copies/L, Z=-1.04, P=0.299; 47.7 (27.9, 77.6)×106 vs. 27.7 (19.7,51.8)×106copies/L, Z=-1.49, P=0.137). The CMV-infected group accepted more reduced-intensity conditioning (RIC) regimen than the CMV-uninfected group (45.2% (14/31) vs. 25.0% (28/112), χ2=4.76, P<0.05). The rate of CMV-seropositive recipients and Ⅱ-Ⅳ acute graft versus host diseases (aGVHD) are significantly higher in the CMV-infected group than the CMV-uninfected group (100% (31/31) vs. 78.6% (88/112), 64.5% (20/31) vs. 26.8% (30/112), χ2=7.98,15.20, both P<0.05). The follow-up time was 31.6 (13.2, 45.9) months, CMV infection had no effect on overall survival (OS) rate (χ2=0.02, P=0.843). There was significant difference in the survival rate among three groups of refractory CMV infection, non-refractory CMV infection and the CMV-uninfected (4/7 vs.95.8% (23/24) vs. 86.6% (97/112), χ2=5.91, P=0.037), while there was no significant difference in the survival rate among three groups of recurrent CMV infection, non-recurrent CMV infection and the CMV-uninfected (5/6 vs. 88.0% (22/25) vs. 86.6% (97/112), χ2=0.43, P=0.896). Children who developed CMV infection after 30 days post-UCBT had lower absolute count and rate of CD4+ T cells and immunoglobulin G (IgG) level than those in the CMV-uninfected group (124.1 (81.5, 167.6) ×106 vs. 175.5 (108.3, 257.2) ×106/L, 0.240 (0.164, 0.404) vs. 0.376 (0.222, 0.469), 9.3 (6.2, 14.7) vs. 13.6 (10.7, 16.4) g/L, Z=-2.48, -2.12,-2.47, all P<0.05), but have higher rate of CD8+T cells than those in CMV-uninfected group (0.418 (0.281, 0.624) vs. 0.249 (0.154, 0.434), Z=-2.56, P=0.010). Conclusions: RIC regimen, grade Ⅱ-Ⅳ aGVHD and CMV-seropositive recipients are the main risk factors associated with CMV infection in PID patients post-UCBT. Survival rate of children with refractory CMV infection after UCBT is reduced. Immune reconstitution in children after UCBT should be regularly monitored, and frequency of CMV-DNA monitoring should be increased for children with delayed immune reconstitution.
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Affiliation(s)
- Z L Wei
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X W Qian
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - P Wang
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - W J Jiang
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H S Wang
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - C Shen
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - W J Wang
- Department of Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Hou
- Department of Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y H Wang
- Department of Gastroenterology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y Huang
- Department of Gastroenterology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X C Wang
- Department of Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X W Zhai
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Wei Y, Ouyang GL, Yao WX, Zhu YJ, Li X, Huang LX, Yang XW, Jiang WJ. Knockdown of HJURP inhibits non-small cell lung cancer cell proliferation, migration, and invasion by repressing Wnt/β-catenin signaling. Eur Rev Med Pharmacol Sci 2020; 23:3847-3856. [PMID: 31115012 DOI: 10.26355/eurrev_201905_17812] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Holliday junction-recognizing protein (HJURP) was found to be upregulated in several tumors, including non-small cell lung cancer (NSCLC), and the effect of HJURP on NSCLC remains unknown. The objective of the present study was to explore the clinical significance of HJURP and its function in regulating the progression of NSCLC. PATIENTS AND METHODS Reverse Transcriptions-Polymerase Chain Reaction (RT-PC) and Western blot were performed to detect the expression levels of HJURP in NSCLC tissues and cell lines. The association of HJURP expression level with various important clinicopathological parameters was evaluated. Then, the effects of HJURP expression on tumor cell behavior in vitro were analyzed by the Cell Counting Kit-8 (CCK-8), EdU assays, colony formation, flow cytometry, and transwell assays. The protein levels of related proteins of the Wnt/β-catenin pathway were determined using the Western blot assay. RESULTS Our study showed that HJURP was significantly upregulated in both NSCLC tissues and cell lines. The higher expression of HJURP was associated with advanced TNM stage, distant metastasis, and poor prognosis. Our data from in vitro assays confirmed that the knockdown of HJURP suppressed NSCLC cells proliferation, migration, invasion, epithelial-mesenchymal transition (EMT) progress, and induced cells apoptosis. Notably, through Western blot analysis, we found that HJURP suppression remarkably decreased β-catenin, cyclin D1 and c-myc expression level in NSCLC cell lines. CONCLUSIONS Our findings provide clues regarding the role of HJURP as a tumor promoter in NSCLC via the activation of the Wnt/β-catenin pathway, indicating HJURP may be a promising therapeutic target for NSCLC.
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Affiliation(s)
- Y Wei
- Department of Medical Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
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Li R, Jiang WJ, Jin SL, Zhao RH, Cao XG, Zong H. [Construction and analysis of competitive endogenous RNA regulatory network related to gastric cancer]. Zhonghua Zhong Liu Za Zhi 2020; 42:115-121. [PMID: 32135645 DOI: 10.3760/cma.j.issn.0253-3766.2020.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Objective: To construct the competitive endogenous RNA (ceRNA) network related to gastric cancer and explore the molecular mechanism. Methods: The expression profiles of lncRNA, miRNA and mRNA in gastric cancer and paracancer tissues were analyzed by biochip technology, edgeR package in R software was used to filtrate differential expression genes (multiple change of >1.5 times, P<0.05) and volcano map was drawn. Based on the online miRNA-lncRNA prediction tool lncBase database and the miRNA Target gene prediction database (miRTarBase, target-scan, miRDB, starBase), the relationship between miRNA, lncRNA and mRNA was predicted. Cytoscape software was used to construct lncRNA-miRNA-mRNA ceRNA network and key genes (hub genes) were identified based on cytohubba calculation of degree score of each node. Then Hub genes related to the prognosis of gastric cancer were verified in the TCGA database. The GO and KEGG enrichment analysis of differentially expressed mRNA was performed using the online biological information annotation database DAVID, P<0.05 and false discovery rate (FDR)<0.05 were used as cut-off criteria. R software was used to download the RNA sequencing data and mirna-seq data of gastric cancer and adjacent tissues in TCGA database, edgeR package was used to screen out differentially expressed mRNA, miRNA and lncRNA, and some differentially expressed genes in our data were verified. In OncoLnc database, STAD project of TCGA data was selected and hub gene was input. Patients were divided into two groups based on the median value for hub genes and Kaplan-meier analysis was performed. Results: The differentially expressed 766 mRNA, 110 lncRNA and 10 miRNA were screened out, among them 90 mRNA, 4 lncRNA and 6 miRNA were used to construct the ceRNA network, and 2 of the 20 hub genes were related to the prognosis of patients. MLK7-AS1, SPP1, SULF1, hsa-miR-1307-3p were upregulated in gastric cancer tissues from our biochip, while MT2A, MT1X were downregulated, which were consistent with the results of TCGA gastric cancer database. The differentially expressed mRNAs were significantly enriched in the biological process (BP) and the mineral absorption pathway. CHST1 was negatively correlated while miR-183-5p was positively corelated with the survival of patients. Conclusion: The establishment of ceRNA network for gastric cancer is conducive to further understanding of the molecular biological mechanism. CHST1 and miR-183-5p can be used as prognostic factors of gastric cancer.
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Affiliation(s)
- R Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W J Jiang
- Department of Oncology, The Zhengzhou Central Hospital Affiliated of Zhengzhou University, Zhengzhou 450007, China
| | - S L Jin
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - R H Zhao
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X G Cao
- Department of Gastrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H Zong
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Jiang WJ, Wang YZ, Yang J, Jia WQ. [Comparison between minimally invasive surgery and traditional laminectomy in the resection of schwannoma of lumbar vertebra]. Zhonghua Yi Xue Za Zhi 2020; 100:274-278. [PMID: 32075355 DOI: 10.3760/cma.j.issn.0376-2491.2020.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application, advantages and disadvantages of minimally invasive surgery for lumbar schwannoma. Methods: this study was a prospective, non-randomized controlled study with a trial group (minimally invasive surgery group) and a control group (traditional laminectomy group).For the patients with lumbar schwannoma hospitalized in the neurosurgical spinal ward of Beijing Tian Tan hospital, the surgeon communicated with them one-on-one to inform the patients of the advantages and disadvantages of minimally invasive surgery through channels and traditional laminectomy. After the surgical risks and their respective advantages and disadvantages were identified, patients who underwent minimally invasive surgery to remove tumors through the channel were admitted to the channel surgery group according to the wishes of the patients; otherwise, patients who underwent traditional laminectomy were included in the control group. From December 2017 to March 2019, a total of 15 patients (experimental group) were treated with minimally invasive surgery. A total of 15 patients with tumors similar in size and location to those in the experimental group were selected from the control group who were hospitalized during the same period for traditional laminectomy. Relevant clinical data of the two groups of patients were collected and analyzed, including preoperative lesion imaging characteristics, intraoperative blood loss, operation time, postoperative hospital stay, postoperative complications, symptom improvement, etc. Results: the operating time of the experimental group and the control group was (157±27) min and (158±29) min, respectively (P=0.897). Intraoperative blood loss was (66±27) ml and (110±43) ml, respectively (P=0.020). The mean hospital stay was (7.60±1.29) days and (11.67±1.23) days, respectively (P=0.000). Postoperative JOA scores were 26.73±2.84 and 26.60±2.41, respectively (P=0.891). Postoperative VAS scores were 0.40±1.12 and 0.27±0.71, respectively (P=0.699).The mean blood loss and hospital stay in the experimental group were significantly lower than those in the control group, the difference in operation time between the two groups was not significant, and there was no difference in neurological function results. Conclusion: In certain types of lumbar schwannoma tumors (non-giant tumors), minimally invasive resection through channels has the advantages of less surgical trauma, less bleeding, faster recovery and definite curative effect, which is a safe and effective surgical treatment.
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Affiliation(s)
- W J Jiang
- Department of Neurosurgery, Tian Tan Hospital of Capital Medical University, Beijing 100071, China
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He Y, Ding Y, Bai W, Li T, Hui FK, Jiang WJ, Xue J. Safety and Efficacy of Transvenous Embolization of Ruptured Brain Arteriovenous Malformations as a Last Resort: A Prospective Single-Arm Study. AJNR Am J Neuroradiol 2019; 40:1744-1751. [PMID: 31537516 DOI: 10.3174/ajnr.a6197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/23/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The efficacy and safety of transvenous embolization for brain arteriovenous malformations remains unclear, given the very limited number of cases reported. This prospective study was performed to assess this technique in ruptured AVMs. MATERIALS AND METHODS Twenty-one consecutive patients with ruptured brain AVMs who underwent transvenous embolization were prospectively followed between November 2016 and November 2018. The Spetzler-Martin grade was I in 3 AVMs (14.3%), II in four (19.0%), III in eleven (52.4%), and IV in three (14.3%). The complete AVM occlusion rate was calculated from 6-month follow-up DSA images. Occurrence of hemorrhage and infarction after embolization was evaluated using CT and MR imaging within 1 month after the operation. The mRS was used to assess the functional outcomes. RESULTS Complete AVM nidus obliteration was shown in 16 (84%) of 19 patients with technically feasible AVMs immediately after embolization. One (5%) patient with a small residual nidus after treatment showed complete obliteration at 13-month follow-up. There were 5 hemorrhages and 1 infarction; 4 patients' symptoms improved gradually. The percentage of cases with mRS ≤ 2 rose from 57.1% (12/21) before embolization to 66.7% (14/21) at 1-month follow-up. Both the morbidity and mortality rates were 4.8% (1/21). CONCLUSIONS Transvenous embolization can be performed only in highly selected hemorrhagic brain AVMs with high complete obliteration rates, improved functional outcomes, and acceptable morbidity and mortality rates, but it should not be considered as a first-line treatment.
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Affiliation(s)
- Y He
- From the Department of Interventional Neuroradiology (Y.H., W.B., T.L., J.X.), Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, and Henan Provincial Neurointerventional Engineering Research Center, Zhengzhou, China
| | - Y Ding
- Department of Radiology (Y.D.), Mayo Clinic, Rochester, Minnesota
| | - W Bai
- From the Department of Interventional Neuroradiology (Y.H., W.B., T.L., J.X.), Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, and Henan Provincial Neurointerventional Engineering Research Center, Zhengzhou, China
| | - T Li
- From the Department of Interventional Neuroradiology (Y.H., W.B., T.L., J.X.), Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, and Henan Provincial Neurointerventional Engineering Research Center, Zhengzhou, China
| | - F K Hui
- Department of Radiology (F.K.H.), Johns Hopkins Hospital, Baltimore, Maryland
| | - W-J Jiang
- Department of Vascular Neurosurgery (W.-J.J.), the PLA Rocket Force General Hospital, Beijing, China
| | - J Xue
- From the Department of Interventional Neuroradiology (Y.H., W.B., T.L., J.X.), Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, and Henan Provincial Neurointerventional Engineering Research Center, Zhengzhou, China
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Wan YH, Zhuang L, Ren LJ, Zheng QN, Fu L, Shan ZZ, Pei FF, Jiang WJ, Tang GP, Li SJ. [Genetic characteristic of hemagglutinin of avian influenza A (H7N9) virus in Guizhou Province in 2017]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:229-232. [PMID: 30744302 DOI: 10.3760/cma.j.issn.0253-9624.2019.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The number of H7N9 bird flu cases was high and the situation was grim in guizhou province in 2017. To understand the molecular characteristics of the hemagglutinin gene (HA) and the risk of human infection with avian influenza virus A(H7N9) in Guizhou Province, 2017. Homology, genetic evolution and pivotal sites related to receptor binding regions, pathogenicity and potential glycosylation of 14 avian influenza viruses A(H7N9) were analyzed by a series of bioinformation softwares. It was cleared that there was 95.9%-100% similarity among 14 strains in nucleotide of the HA gene, and there were 96.8%-97.8% and 96.8%-97.9% similarities with vaccine strains A/Shanghai/2/2013 and A/Anhui/1/2013 recommended by WHO, respectively. Phylogenetic analysis showed that 14 HA genes were directly evolved in the Yangtze River Delta evolution branch, but they could be derived from five diffenrent strains. Then 13 of 14 strains cleavage site sequences of HA protein revealed they were low pathogenic avian influenza viruses, while A/Guizhou-Weining/CSY01/2017 was high pathogenic avian influenza virus. Mutation G186V at the receptor binding sites in the HA was found in all 14 strains, and mutation Q226L in 13 strains besides A/Guizhou-Weining/CSY01/2017. All five potential glycosylation motifs in the HA were conservative.
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Affiliation(s)
- Y H Wan
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - L Zhuang
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - L J Ren
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - Q N Zheng
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - L Fu
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - Z Z Shan
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Qiandongnan Center for Disease Control and Prevention, Kaili 556000, China
| | - F F Pei
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Qiandongnan Center for Disease Control and Prevention, Kaili 556000, China
| | - W J Jiang
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - G P Tang
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
| | - S J Li
- Clinical Laboratory of Institute for Communicable Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
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11
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Qu A, Sun HT, Jiang WJ, Jiang P, Jiang YL, Li WY, Tian SQ, Wang JJ. [Efficacy and dosimetric analysis of (125)I seeds implantation for pelvic recurrent cervical cancer after radiotherapy under CT guidance]. Zhonghua Yi Xue Za Zhi 2018; 98:3014-3016. [PMID: 30392259 DOI: 10.3760/cma.j.issn.0376-2491.2018.37.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To evaluate the relationship of dosimetry parameters and efficacy of (125)I seeds implantation for pelvic recurrent cervical cancer (PRCC) after external beam radiotherapy(EBRT) under CT guidance. Methods: A retrospective analysis was made on 30 PRCC patients after EBRT in Peking University Third Hospital with (125)I seeds implantation under CT guidance. Postoperative plans were made to evaluate the dosimetric parameters. Kaplan-Meier method was used to calculate local progression free survival (LPFS) rate and overall survival (OS) rate, and Log-rank test and Cox regression were used for univariate and multivariate analysis. Results: The 1-year and 2-year LPFS rate was 39.4% and 22.5%, respectively. The 1-year and 2-year OS rate was 57.3% and 27.4%, respectively. On postoperative plan, D(90) was (132±47) Gy, D(100) was (51±24) Gy, V(100) was 88%±10%, V(150)was 69%±15%, V(200) was 51%±18%.LPFS time would be longer while D(90) ≥105 Gy or D(100) ≥ 55 Gy or V(100) ≥ 91% (all P<0.05). D(100) was significantly related to LPFS (P<0.05). But these dosimetry parameters got no effect on OS. Conclusions: LPFS time of (125)I seeds implantation for PRCC after EBRT under CT guidance would be longer when D(90)≥105 Gy or D(100)≥ 55 Gy, or V(100)≥ 91%. D(100) is an independent factor related to LPFS.
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Affiliation(s)
- A Qu
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191, China
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12
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Wu ZH, Qiu HC, Hu SS, Liu AF, Wang K, Zhou J, Zhang YQ, Zhang YY, Liu F, Xiang L, Jiang WJ. [Interventional treatment of symptomatic intracranial in-stent restenosis]. Zhonghua Yi Xue Za Zhi 2018; 98:3017-3020. [PMID: 30392260 DOI: 10.3760/cma.j.issn.0376-2491.2018.37.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess the feasibility and safety of interventional treatment of symptomatic intracranial in-stent restenosis (SISR). Methods: Clinical data of 21 patients with SISR who underwent interventional treatment in the General Hospital of the PLA Rocket Force from January 2012 to May 2018 were retrospectively analyzed. Perioperative complications, angiographic and clinical follow-up results were recorded. Results: The success rate of treatment was 100%, including 21 lesions of SISR (7 at the V4 segment of the vertebral artery, 7 at the basilar artery, 5 at the M1 segment of middle cerebral artery, 2 at the internal carotid artery). The residual stenosis rate was preoperative 84±7, postoperative 30±14 respectively. Balloon angioplasty and stent implantation were performed in 10 patients (48.6%) and 11 patients (52.4%), respectively. After treatment, 1 patient experienced perforating event without neurological sequelae. Of the 11 patients (52.4%) completed angiography follow-up, 3 (3/11, 27.3%) ocurred restenosis and 1 was retreated. During clinical follow-up, 1 patients received intravenous thrombolysis for the symptom of acute cerebral infarction in territory of stenting artery, in-stent restenosis or occlusion was not demonstrated by emergency cerebral angiography. Conclusion: Interventional treatment of SISR is feasible and safe, however, further studies need to warrant the long-term effects.
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Affiliation(s)
- Z H Wu
- Department of Vascular Neurosurgery, New Era Stroke Care and Research Institute, General Hospital of the PLA Rocket Force, Beijing 100088, China
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13
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He YK, Li H, Bai WX, Li TX, Jiang WJ, Qiu HC. [Efficacy of Pipeline embolization device in the treatment of large and giant intracranial aneurysms]. Zhonghua Yi Xue Za Zhi 2018; 98:2180-2183. [PMID: 30032522 DOI: 10.3760/cma.j.issn.0376-2491.2018.27.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the safety and efficacy of Pipeline embolization device in the treatment of large and giant intracranial aneurysms (maximum diameter ≥ 10 mm). Methods: The clinical and imaging data of 22 patients with intracranial aneurysms treated by Pipeline Embolization Device (PED) from February 2015 to July 2016 in the Zhengzhou University People's Hospital were retrospectively analyzed. The results about postoperative clinical and imaging follow-up and complications were evaluated. Results: The PED were successfully implanted in 22 patients with 22 intracranial aneurysms. Two aneurysms were treated with PED alone, and 20 aneurysms were treated with PED assisted coil embolization. Perioperative complications occurred in 3 patients (13.6%), and 1 patient died because aneurysm ruptured 3 days after operation. Nineteen patients (19 aneurysms) obtain imaging follow-up visit 3-17 months after operation, 13 of the 19 aneurysms (68.4%) received complete and subtotal occlusion, with no aneurysm recurrence. Eighteen patients obtain clinical follow-up visit 16-32 months after operation, with mRS (modified Rankin scale) score 1 in 5 patients, mRS score 0 in 13 patients, none developed new neurologic symptoms. Conclusions: PED has showed the high rate of obliteration for the treatment of large and giant intracranial aneurysms. But the complications needs to be further studied.
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Affiliation(s)
- Y K He
- The PLA Rocket Force General Hospital, Soochow University , Beijing 100088, China
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Chen XZ, Zarzuela R, Zhang J, Song C, Zhou XF, Shi GY, Li F, Zhou HA, Jiang WJ, Pan F, Tserkovnyak Y. Antidamping-Torque-Induced Switching in Biaxial Antiferromagnetic Insulators. Phys Rev Lett 2018; 120:207204. [PMID: 29864355 DOI: 10.1103/physrevlett.120.207204] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/15/2018] [Indexed: 06/08/2023]
Abstract
We investigate the current-induced switching of the Néel order in NiO(001)/Pt heterostructures, which is manifested electrically via the spin Hall magnetoresistance. Significant reversible changes in the longitudinal and transverse resistances are found at room temperature for a current threshold lying in the range of 10^{7} A/cm^{2}. The order-parameter switching is ascribed to the antiferromagnetic dynamics triggered by the (current-induced) antidamping torque, which orients the Néel order towards the direction of the writing current. This is in stark contrast to the case of antiferromagnets such as Mn_{2}Au and CuMnAs, where fieldlike torques induced by the Edelstein effect drive the Néel switching, therefore resulting in an orthogonal alignment between the Néel order and the writing current. Our findings can be readily generalized to other biaxial antiferromagnets, providing broad opportunities for all-electrical writing and readout in antiferromagnetic spintronics.
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Affiliation(s)
- X Z Chen
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - R Zarzuela
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - J Zhang
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - C Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - X F Zhou
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - G Y Shi
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - F Li
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - H A Zhou
- State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - W J Jiang
- State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - F Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Y Tserkovnyak
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
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15
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Sun HT, Yang RJ, Jiang P, Jiang WJ, Li JN, Meng N, Wang JJ. [Dosimetric analysis of volumetric modulated arc therapy and intensity modulated radiotherapy for patients undergone breast-conserving operation]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:188-192. [PMID: 29483745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To compare the dosimetric differences between volumetric modulated arc therapy and intensity modulated radiotherapy for breast cancer patients after breast-conserving surgery. METHODS Ten patients who received radiotherapy after breast-conserving surgery were selected. Eclipse planning system was used to design volumetric rotating intensity-modulated (2F-RapidArc) and two field intensity-modulated radiation therapy (2F-IMRT) planning for each patient. 2F-RapidArc plans were made using two partial arcs with gantry rotation from 287°-293° to 152°-162°, and 0° to 90 ° was avoidance sector. The gantry angle of 2F-IMRT were 301°-311° and 125°-135°. The prescription dose was 46 Gy/23 fractions. All plans required 95% of the target volume receiving the prescription dose. The dose distribution of the target, organs at risk, machine unit (MU) and treatment time were compared. RESULTS 2F-RapidArc and 2F-IMRT plans' uniformity index was 1.12±0.02 and 1.11±0.03 (P=0.282), respectively; conformal index was 0.80±0.03 and 0.65±0.04 (P<0.001), respectively. V110 of plan target volume was 20.98%±14.47% and 10.43%±10.49% (P=0.030), respectively. Compared with the 2F-IMRT, 2F-RapidArc plans had a higher dosimetric parameters for left lung: V5 (48.06%±17.32% vs. 24.23%±6.56%,P=0.001), V10 (28.89±9.28 vs.17.07±4.78%,P=0.004), Dmean [(9.70±2.14) Gy vs. (6.86±1.77) Gy, P=0.002], increased the double lung: V5 (22.85%±7.55% vs. 11.01%± 2.95%,P=0.001), V10 (13.16%±4.33% vs. 7.76%± 2.16%, P=0.006), Dmean [(4.66±0.95) Gy vs. (3.17±0.82) Gy, P=0.001], reduced the left lung: V40 (3.58%±1.46% vs. 6.19%±3.04%, P=0.006), reduced the double lung: V40 (1.61%±0.64% vs. 2.81%± 1.39%,P=0.005), increased cardiac: V5 (39.3%±17.19% vs. 8.79%±4.24%, P<0.001), V10 (21.31%±13.8% vs. 5.73%±3.42%, P=0.002), V20 (7.80%±6.08% vs. 4.05%±2.85%,P=0.018), Dmean [(0.64±0.25) Gy vs. (0.29±1.39) Gy,P<0.001],reduced the heart: V40(0.50%±0.40% vs. 1.86%±1.94%,P=0.037),increased the contralateral breast Dmean [(1.63±1.26) Gy vs. (0.09±0.05) Gy, P=0.004]. Compared with 2F-IMRTplan, 2F-RapidArc increased the treatment time [(132.9±7.2) s vs. (140.3±11.6) s, P=0.030]. Both the machine units were almost the same [(467.0±30.4) MU vs. (494.7±44.9) MU, P=0.094]. CONCLUSION Both 2F-RapidArc and 2F-IMRT plans could reach the clinical requirements. 2F-RapidArc had a better conformal index, reduced the high dose area, but increased the low dose regions of the lung, heart, body area, and increased the average dose of the contralateral breast. The treatment time of 2F-RapidArc was longer than that of 2F-IMRT, and the MU of 2F-RapidArc and 2F-IMRT plans were almost the same.
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Affiliation(s)
- H T Sun
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
| | - R J Yang
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
| | - P Jiang
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
| | - W J Jiang
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
| | - J N Li
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
| | - N Meng
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
| | - J J Wang
- Department of Cancer Radiation, Peking University Third Hospital, Beijing 100191, China
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16
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Zhang YQ, Qiu HC, Tao YF, Liu ML, Ye X, Chen XL, Jiang WJ. [Hybrid surgery for complex symptomatic intracranial fistulas: a technical note]. Zhonghua Yi Xue Za Zhi 2017; 97:822-826. [PMID: 28355736 DOI: 10.3760/cma.j.issn.0376-2491.2017.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the efficacy of hybrid management of complex symptomatic intracranial fistulas in neurovascular hybrid operating room. Methods: From March 2014 to January 2015, 2 complex dural arteriovenous fistulas and 1 carotid cavernous fistulas were managed by hybrid surgeries in the PLA Rocket Force General Hospital.With first attempts with endovascular treatment failed, all cases were finally managed by hybrid surgery.Dural arteriovenous fistulas were approached via meningeal artery followed craniotomy.The carotid cavernous fistulas were treated by direct puncture into the left cavernous sinus after craniotomy. Results: Post-operative angiography demonstrated complete occlusion for 2 cases and nearly complete occlusion for 1 case.All 3 cases had no complications.On discharge 2 patients presented no symptoms and 1 greatly improved.Within the follow-up (1-33 months), 1 patient had recurrence after 21 months and received re-embolization with complete occlusion. Conclusion: Hybrid surgery is a promising method to manage complex intracranial fistulas.
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Affiliation(s)
- Y Q Zhang
- Department of Neurovascular Surgery, New Era Stroke Care & Research Center, PLA Rocket Force General Hospital, Beijing 100088, China
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17
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Wang T, Liu S, Zheng YB, Song XP, Jiang WJ, Sun BL, Wang LG. [Application of (125)I seeds combined with biliary stent implantation in the treatment of malignant obstructive jaundice]. Zhonghua Zhong Liu Za Zhi 2016; 38:228-31. [PMID: 26988831 DOI: 10.3760/cma.j.issn.0253-3766.2016.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study the feasibility and therapeutic effect of the application of (125)I seeds combined with biliary stent implantation on the treatment of malignant obstructive jaundice. METHODS Fifty patients with malignant obstructive jaundice treated from September 2010 to February 2013 in Yantai Yuhuangding Hospital were included in this study. Among them, 24 patients received biliary stent implantation combined with (125)I seeds intraluminal brachytherapy as experimental group, and 26 were treated by biliary stent implantation as control group.The total bilirubin, direct bilirubin and tumor markers (CA-199, CA-242, CEA) before and after surgery, the biliary stent patency status was assessed, and the survival time was evaluated. RESULTS The 24 patients in experimental group were implanted with 30 (125)I seeds successfully in a total of 450 seeds. Jaundice was improved greatly in both groups. The CA-199 and CA-242 after treatment in the experimental group were significantly decreased than that before treatment (P=0.003 and P=0.004). CEA was also decreased, but showed no statistical significance (P>0.05). There were no significant improvement comparing the CA-199, CA-242 and CEA before and 2 months after surgery in the control group (P>0.05). The rate of biliary stent patency was 83.3% (20/24) in the experimental group and 57.7% (15/26) in the control group (P=0.048). The mean biliary stent patency time in the experimental group was 9.84 months (range 1-15.5 months). The mean biliary stent patency time in the control group was 5.57 months (range 0.8-9 months). There was a significant difference between the two groups (P=0.018). The median survival time was 10.2 months in the experimental group and 5.4 months in the control group (P<0.05). CONCLUSION (125)I seeds combined with biliary stent implantation can inhibit the proliferation of vascular endothelial cells and the growth of tumor effectively, and can prolong the biliary stent patency time and the survival time obviously for patients with malignant obstructive jaundice, therefore, is a safe and effective treatment in this malignancy.
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Affiliation(s)
- T Wang
- Department of Interventional Therapy, Yuhuangding Hospital, Yantai 264000, China
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Qiu HC, Zhang YQ, Li C, Zhao YL, Zhao JZ, Jiang WJ. [Management of 99 intracranial aneurysms in neurovascular hybrid operating room]. Zhonghua Yi Xue Za Zhi 2016; 96:547-50. [PMID: 26902196 DOI: 10.3760/cma.j.issn.0376-2491.2016.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To analyze the current status of intracranial aneurysms treated in neurovascular hybrid operating room. METHODS In the neurovascular hybrid operating room of New Era Stroke Care & Research Center, the Second Artillery General Hospital PLA, from October 2013 to November 2015, 99 cases of intracranial aneurysms were managed by interventional treatment, open surgery, hybrid surgery or switched surgical procedures. RESULTS Patients with intracranial aneurysms treated in neurovascular hybrid operating room achieved good clinical outcome. CONCLUSION It is an ideal option to treat intracranial aneurysms in neurovascular hybrid operating room.
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Affiliation(s)
- H C Qiu
- Soochow University, Suzhou 215006, China
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Li HB, Yang YRY, Mo ZJ, Ding Y, Jiang WJ. Silibinin improves palmitate-induced insulin resistance in C2C12 myotubes by attenuating IRS-1/PI3K/Akt pathway inhibition. ACTA ACUST UNITED AC 2015; 48:440-6. [PMID: 25760026 PMCID: PMC4445668 DOI: 10.1590/1414-431x20144238] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 11/26/2014] [Indexed: 01/19/2023]
Abstract
The present study investigated the effect of silibinin, the principal potential
anti-inflammatory flavonoid contained in silymarin, a mixture of flavonolignans
extracted from Silybum marianum seeds, on palmitate-induced insulin
resistance in C2C12 myotubes and its potential molecular mechanisms. Silibinin
prevented the decrease of insulin-stimulated 2-NBDG
(2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxy-D-glucose) uptake and the
downregulation of glutamate transporter type 4 (GLUT4) translocation in C2C12
myotubes induced by palmitate. Meanwhile, silibinin suppressed the palmitate-induced
decrease of insulin-stimulated Akt Ser473 phosphorylation, which was reversed by
wortmannin, a specific inhibitor of phosphatidylinositol-3-kinase (PI3K). We also
found that palmitate downregulated insulin-stimulated Tyr632 phosphorylation of
insulin receptor substrate 1 (IRS-1) and up-regulated IRS-1 Ser307 phosphorylation.
These effects were rebalanced by silibinin. Considering several serine/threonine
kinases reported to phosphorylate IRS-1 at Ser307, treatment with silibinin
downregulated the phosphorylation of both c-Jun N-terminal kinase (JNK) and nuclear
factor-κB kinase β (IKKβ), which was increased by palmitate in C2C12 myotubes
mediating inflammatory status, whereas the phosphorylation of PKC-θ was not
significantly modulated by silibinin. Collectively, the results indicated that
silibinin prevented inhibition of the IRS-1/PI3K/Akt pathway, thus ameliorating
palmitate-induced insulin resistance in C2C12 myotubes.
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Affiliation(s)
- H B Li
- Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Y R Y Yang
- Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Z J Mo
- Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Y Ding
- Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - W J Jiang
- Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
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20
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Sha F, Ye X, Zhao W, Xu CL, Wang L, Ding MH, Bi AL, Wu JF, Jiang WJ, Guo DD, Guo JG, Bi HS. Effects of electroacupuncture on the levels of retinal gamma-aminobutyric acid and its receptors in a guinea pig model of lens-induced myopia. Neuroscience 2014; 287:164-74. [PMID: 25542423 DOI: 10.1016/j.neuroscience.2014.12.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 12/05/2014] [Indexed: 12/01/2022]
Abstract
Gamma-aminobutyric acid (GABA) is a major inhibitory neurotransmitter of the retina and affects myopic development. Electroacupuncture (EA) is widely utilized to treat myopia in clinical settings. However, there are few reports on whether EA affects the level of retinal GABA during myopic development. To study this issue, in the present study, we explored the changes of retinal GABA content and the expression of its receptor subtypes, and the effects of EA stimulation on them in a guinea pig model with lens-induced myopia (LIM). Our results showed that the content of GABA and the expression of GABAA and GABAC receptors of retina were up-regulated during the development of myopia, and this up-regulation was inhibited by applying EA to Hegu (LI4) and Taiyang (EX-HN5) acupoints. Moreover, these effects of EA show a positional specificity. While applying EA at a sham acupoint, no apparent change of myopic retinal GABA and its receptor subtypes was observed. Taken together, our findings suggest that LIM is effective to up-regulate the level of retinal GABA, GABAA and GABAC receptors in guinea pigs and the effect may be inhibited by EA stimulation at LI4 and EX-HN5 acupoints.
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Affiliation(s)
- F Sha
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - X Ye
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, No. 48#, Yingxiongshan Road, Jinan 250002, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, No. 48#, Yingxiongshan Road, Jinan 250002, China; Eye Institute of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China
| | - W Zhao
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - C-L Xu
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - L Wang
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China; Jining Medical University, Jining, Shandong Province 272000, China
| | - M-H Ding
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - A-L Bi
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, No. 48#, Yingxiongshan Road, Jinan 250002, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, No. 48#, Yingxiongshan Road, Jinan 250002, China; Eye Institute of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China
| | - J-F Wu
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - W-J Jiang
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, No. 48#, Yingxiongshan Road, Jinan 250002, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, No. 48#, Yingxiongshan Road, Jinan 250002, China; Eye Institute of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China
| | - D-D Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, No. 48#, Yingxiongshan Road, Jinan 250002, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, No. 48#, Yingxiongshan Road, Jinan 250002, China; Eye Institute of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China
| | - J-G Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, No. 48#, Yingxiongshan Road, Jinan 250002, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, No. 48#, Yingxiongshan Road, Jinan 250002, China; Eye Institute of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China
| | - H-S Bi
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, No. 48#, Yingxiongshan Road, Jinan 250002, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, No. 48#, Yingxiongshan Road, Jinan 250002, China; Eye Institute of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China; Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan 250002, China.
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Muhali FS, Song RH, Wang X, Shi XH, Jiang WJ, Xiao L, Li DF, He ST, Xu J, Zhang JA. Genetic variants of BANK1 gene in autoimmune thyroid diseases: a case-control association study. Exp Clin Endocrinol Diabetes 2013; 121:556-60. [PMID: 24127308 DOI: 10.1055/s-0033-1348220] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To investigate BANK1 gene variation, and its association with autoimmune thyroid disease and clinical features. METHOD We genotyped 3 single nucleotide polymorphisms (SNPs) rs10516487, rs3733197 and rs4522865 of BANK1 gene in 667 patients with autoimmune thyroid diseases (417 with Graves' disease and 250 with Hashimoto's thyroiditis) and 301 healthy controls. The Matrix Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometer (MALDI-TOF-MS) Platform was used to detect the 3 SNPs. RESULTS There was a significant association in rs3733197 A allele and AITD patients (P=0.043). SNP rs3733197 A allele was found in 29.63% chromosome of AITD patients who are 18 years old or below, compared with 19.90% chromosome in those 19 years or above (P=0.017). Also SNP rs3733197 A allele showed a significant association in HT patients when compared with controls (P=0.031, OR=0.73 and 95% CI=0.55-0.97). Stratification for specific autoantibodies in AITD patients TGAb positive when compared with SE (shared epitope) positive showed a significant association in rs3733197 SNP (P=0.010, OR=0.68 and 95%=CI 0.51-0.91). However, no significant association was found between 3 SNPs and GD. CONCLUSION Our findings suggest the existence of association between BANK1 gene and AITD thus adding BANK1 gene to the list of the predisposing genes to AITD.
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Affiliation(s)
- F-S Muhali
- Department of Endocrinology, The First Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, People's Republic of China
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Zhu XJ, Du B, Lou X, Hui FK, Ma L, Zheng BW, Jin M, Wang CX, Jiang WJ. Morphologic characteristics of atherosclerotic middle cerebral arteries on 3T high-resolution MRI. AJNR Am J Neuroradiol 2013; 34:1717-22. [PMID: 23639560 DOI: 10.3174/ajnr.a3573] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE There are limited studies on the morphologic characteristics of MCA atherosclerotic stenosis. Our aim was to quantitatively assess the remodeling pattern and plaque distribution of atherosclerotic MCAs with 3T high-resolution MR imaging. MATERIALS AND METHODS Eighty-seven consecutive patients with symptomatic atherosclerotic stenoses at the M1 segment of the MCA on DSA (50%-99%) were enrolled. The remodeling index was calculated as the Vessel Area at Maximal Lumen Narrowing/Reference Vessel Area. A remodeling index ≥ 1.0 was defined as positive remodeling, and a remodeling index < 1.0, as negative remodeling. Plaque distribution at the maximal lumen narrowing site was classified on the basis of the involvement of the superior, inferior, dorsal, or ventral MCA wall. RESULTS Forty-three of 87 patients were excluded due to poor imaging quality (n = 8) or scan plane obliquity secondary to a tortuous M1 segment of the MCA or an MCA ostium lesion or angled lesion (n = 35). Of 44 patients in the final analysis, negative remodeling was found in 19 (43.2%) lesions, and positive remodeling, in 25 (56.8%) lesions. At maximal lumen narrowing sites, lesions with negative remodeling had less vessel area, wall area, and percentage of plaque burden (P < .0001) and a lower eccentricity index (P = .023), compared with lesions with positive remodeling. The plaque involved the superior and dorsal walls in 15 (34.1%) of 44 patients. CONCLUSIONS 2D high-resolution MR imaging can help assess the remodeling pattern and plaque distribution of MCA stenosis, but the imaging and postprocessing protocol for remodeling assessment needs to be improved in the tortuous course of the MCA and in MCA ostium or angled lesions.
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Affiliation(s)
- X J Zhu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Lou X, Ma N, Ma L, Jiang WJ. Contrast-enhanced 3T high-resolution MR imaging in symptomatic atherosclerotic basilar artery stenosis. AJNR Am J Neuroradiol 2012; 34:513-7. [PMID: 22878005 DOI: 10.3174/ajnr.a3241] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Contrast-enhanced 3T high-resolution MR imaging can be used to determine the wall enhancement pattern of the basilar artery in symptomatic atherosclerotic stenosis. We used this method to explore the relationship between wall enhancement and both recent infarction in the territory of the stenotic BA and subsequent ischemic events associated with the stenotic BA. MATERIALS AND METHODS Sixty patients with symptomatic atherosclerotic BA stenosis ≥70% were enrolled consecutively. HR-MRI of cross-sectional BAs was obtained before and after contrast media injection, and wall enhancement indices were calculated for sections proximal to, at, and distal to the site of maximal luminal narrowing. DWI of the brain was performed to determine the presence of recent infarction. RESULTS Images from 56 patients were suitable for analysis. Thirty-three patients underwent stent placement for the stenotic BA, and 23 patients underwent conservative medical treatment with antiplatelet agents and risk-factor control. All 23 patients with medical treatment had a 12-month follow-up. Greater wall enhancement was seen in the section proximal to the MLN section in both patients with recent infarction (74 ± 65% versus 44 ± 44%; P = .046) and in patients with subsequent ischemic events (100 ± 57% versus 44 ± 44%; P = .014). CONCLUSIONS Greater wall enhancement proximal to the MLN site correlates with recent infarction in the territory of the stenotic BA and subsequent ischemic events associated with the stenotic BA. Contrast-enhanced HR-MRI may serve as a noninvasive tool for risk stratification of BA atherosclerosis.
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Affiliation(s)
- X Lou
- Department of Radiology, People's Liberation Army General Hospital, Beijing, China
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Abstract
BACKGROUND There are limited studies on wall imaging of human basilar artery (BA). Our aim was to investigate remodeling mode of advanced BA atherosclerosis using 3-T MRI. METHODS Thirty-two consecutive symptomatic patients with atherosclerotic BA stenosis >or=70% were imaged with a 3-T magnetic resonance scanner. Proton density-weighted (PDW) cross-sectional images with submillimeter voxel size were obtained. The vessel area (VA) and lumen area (LA) at the maximal lumen narrowing (MLN) site and reference site were measured. Intraobserver and interobserver variability was determined by intraclass correlation coefficient (ICC). Wall area (WA) was estimated by VA - LA. Plaque size (PS) was estimated by WA at MLN site--reference WA. Percent plaque burden was calculated as (PS/VA at MLN site) x 100%. Remodeling index (RI) was the ratio of VA at MLN site to reference VA. RI >or=1.05 was defined as positive remodeling (PR) and RI <1.05 as non-PR. RESULTS Measurements of cross-sectional BA images were available in 30 of 32 patients. Intraobserver or interobserver variability was small, with ICC ranging from 0.955 to 0.996. The mean RI of the 30 patients was 1.2 +/- 0.4. PR was found in 19 (63.3%) patients and non-PR in 11 (36.7%) patients. Compared with the non-PR group, the PR group had greater PS (15.0 +/- 9.3 mm(2) vs 6.4 +/- 3.9 mm(2), p = 0.007) and greater percent plaque burden (50.5 +/- 9.9% vs 28.5 +/- 12.7%, p < 0.0001). CONCLUSIONS 3-T high-resolution PDW imaging is a reproducible tool for measuring BA dimensions. In patients with advanced BA atherosclerosis, PR lesions are more frequently observed and contain larger plaques than non-PR lesions.
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Affiliation(s)
- N Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Jiang WJ, Yu W, Du B, Wong EHC, Gao F. Wingspan experience at Beijing Tiantan Hospital: new insights into the mechanisms of procedural complication from viewing intraoperative transient ischemic attacks during awake stenting for vertebrobasilar stenosis. J Neurointerv Surg 2010; 2:99-103. [PMID: 21990587 DOI: 10.1136/jnis.2009.001669] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND AND AIM Intracranial vertebrobasilar artery (VBA) stenosis portends a stroke and death rate of 8.5-22.8% annually despite medical therapy. Stenting has emerged as a treatment option but also carries substantial risk. Awake stenting under local anesthesia to minimize major procedural complication was investigated. METHODS Between January 2007 and December 2008, 43 of 46 consecutive patients with severe symptomatic intracranial VBA stenosis underwent elective angioplasty assisted with self-expanding Wingspan stent under local anesthesia at our institute. All data were collected prospectively. RESULTS All 43 patients tolerated the stenting procedure under local anesthesia well. Forty-two patients (97.7%) were stented successfully. Within 30 days, there were three periprocedural strokes, including thromboembolic infarct, pontine perforator infarct and intracranial hemorrhage, without fatality. In addition, five patients had intraoperative brainstem transient ischemic attacks (TIAs) seconds after the deployment of the stent delivery system across the tortuous VBA. The symptoms and signs included impaired consciousness (n=5), dysarthria (n=3), convulsion (n=2), conjugate horizontal gaze palsy (n=2), nystagmus (n=2) and pinpoint pupils (n=1). There was angiographic evidence of VBA straightening without thromboembolism. The TIAs resolved within minutes of prompt removal of the delivery catheter. CONCLUSIONS VBA stenting under local anesthesia is feasible with a 7% periprocedural stroke risk. Awake stenting allows timely detection of intraoperative TIAs. The mechanism of intraoperative TIA appears to be stent delivery system induced VBA straightening and distortion of its vascular tree. A devastating stroke may ensue if the TIA is not detected and distortion of VBA perforators is not reversed promptly.
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Affiliation(s)
- W-J Jiang
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, The Capital Medical University, Beijing, China.
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Ma N, Lou X, Zhao TQ, Wong EHC, Jiang WJ. Intraobserver and interobserver variability for measuring the wall area of the basilar artery at the level of the trigeminal ganglion on high-resolution MR images. AJNR Am J Neuroradiol 2010; 32:E29-32. [PMID: 20223883 DOI: 10.3174/ajnr.a2049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We evaluated the intraobserver and interobserver variability for WA measurement of an atherosclerotic BA by using HRMRI. Ten consecutive patients underwent HRMRI, and the WA of the BA at the level of the trigeminal ganglion was measured by 2 independent readers and repeated by 1 reader 1 month later. There was strong agreement for intraobserver and interobserver measurements in the ICC and by the Bland-Altman method. Measurement of the WA in an atherosclerotic BA by HRMRI was reproducible.
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Affiliation(s)
- N Ma
- Department of Neurology and Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, China
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Liu YQ, Kong YH, Zhang R, Zhang X, Wong FS, Tay JH, Zhu JR, Jiang WJ, Liu WT. Microbial population dynamics of granular aerobic sequencing batch reactors during start-up and steady state periods. Water Sci Technol 2010; 62:1281-1287. [PMID: 20861541 DOI: 10.2166/wst.2010.408] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study investigates microbial population dynamics in granular sequencing batch reactors (GSBR). The experimental results of DGGE fingerprint of sludge demonstrated that the microbial community structure of sludge shifted significantly during granulation period and nutrient removal improvement period. After reactor performance and physical characteristics of sludge reached steady state, microbial population of sludge became relatively stable. The high similarity of microbial community structure between co-existed flocculated sludge and granular sludge in GSBR at different operation phases indicated that similar microbial consortium could exist in compact aggregated form or in amorphous flocculated form. Therefore, strong selection pressure was still required to wash out flocs to maintain the stability of reactor operation. In addition, it was found that substrate type had considerable impact on microbial species selection and enrichment in granular sludge. The clone library of granular sludge showed that microbial species in divisions of α-Proteobacteria, β-Proteobacteria, γ-Proteobacteria and Bacteroidetes existed within acetate-fed granule communities and Thauera spp. from β-Proteobacteria accounted for 49% of the total clones in the whole clone library. It is thus speculated that Thauera spp. are important for the formation of acetate-fed granules under the conditions used in this study, maintaining the integrity of granules or substrate degradation.
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Affiliation(s)
- Y Q Liu
- Institute of Environmental Science and Engineering, Nanyang Technological University, 18, Nanyang Drive, Singapore 637723, Singapore.
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Jiang WJ, Du B, Hon SFK, Jin M, Xu XT, Ma N, Gao F, Dong KH. Do patients with basilar or vertebral artery stenosis have a higher stroke incidence poststenting? J Neurointerv Surg 2009; 2:50-4. [PMID: 21990559 DOI: 10.1136/jnis.2009.000356] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND AND AIM Posterior circulation stenosis may be a risk factor associated with stroke after intracranial stenting as compared with anterior circulation stenosis. Our aim was to test our hypothesis that there was no difference in clinical outcome poststenting between patients with severe stenosis of the basilar artery (BA) and intracranial vertebral artery (VA). METHODS Using the Cox proportional hazards regression model adjusted for prespecified factors (qualifying event, and timing of stenting after the qualifying event), we compared primary endpoint (ischemic stroke in the vertebrobasilar territory, including any stroke or death within 30 days of stenting) between patients with severe symptomatic atherosclerotic BA and VA stenosis who underwent elective stenting in our prospective database. Analysis was by intention-to-treat principle. RESULTS Primary endpoint event occurred in 13 (18.8%) of 69 patients with BA stenosis during a mean 23.4 months (9 within 30 days and 4 afterward) and 3 (4.3%) of 70 patients with VA stenosis during a mean 26.4 months (2 within 30 days and 1 afterward). Patients with BA stenosis had a significantly higher risk of the primary endpoint (adjusted HR=4.87, 95% CI 1.37 to 17.29; p=0.014) or any stroke or death within 30 days of stenting (adjusted HR=5.13, 95% CI 1.10 to 23.96; p=0.038) than those with VA stenosis. CONCLUSION A significantly higher stroke risk poststenting exists in patients with severe BA stenosis than those with VA stenosis. The discrepancy in clinical outcome after stenting between patients with BA and VA stenosis should be considered in clinical practice and stenting trials.
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Affiliation(s)
- W-J Jiang
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
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Du B, Wong EHC, Jiang WJ. Long-term outcome of tandem stenting for stenoses of the intracranial vertebrobasilar artery and vertebral ostium. AJNR Am J Neuroradiol 2009; 30:840-4. [PMID: 19279273 DOI: 10.3174/ajnr.a1427] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Patients with symptomatic atherosclerotic stenosis of the intracranial vertebrobasilar artery (VBA) have a poor prognosis, and those with coexistent intracranial and extracranial stenoses have worse outcomes despite medical therapy. Our aim was to study the long-term outcome of patients with symptomatic atherosclerotic tandem stenoses at the intracranial VBA and the vertebral artery ostium (VAO) after elective stent placement. MATERIALS AND METHODS Ten consecutive patients (mean age, 65.3 years) with this condition underwent elective stent placement at our institution between September 2001 and December 2007. Technical success was defined as stent placement of both VAO and intracranial VBA stenoses with complete stent coverage of the lesions, residual stenosis of < or = 30%, and good antegrade blood flow. The study end point was a composite of any stroke or death within 30 days and ischemic stroke in the VBA territory after 30 days. RESULTS Technical success was obtained in 9 of 10 patients without any stroke or death within 30 days. During a median follow-up duration of 32 months, 1 patient had a fatal ischemic stroke in the VBA territory at 4 months, and the other 9 patients were free from stroke recurrence. Thus, the annual stroke rate in VBA territory (including any stroke or death within 30 days) was 3.8%. CONCLUSIONS This pilot study shows that elective stent placement for patients with symptomatic atherosclerotic tandem stenoses at the intracranial VBA and VAO has an acceptable long-term outcome and may be considered as an alternative to medical therapy.
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Affiliation(s)
- B Du
- Department of Neurology and Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Jiang WJ, Xu XT, Jin M, Du B, Dong KH, Dai JP. Apollo stent for symptomatic atherosclerotic intracranial stenosis: study results. AJNR Am J Neuroradiol 2007; 28:830-4. [PMID: 17494651 PMCID: PMC8134340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
BACKGROUND AND PURPOSE A recent trial shows an 8.3 per 100-patient-years' ischemic stroke rate in the territory of the intracranial stenotic artery, despite aspirin treatment. Our aim was to prospectively study the feasibility and outcome of a new intracranial balloon-expandable Apollo stent for symptomatic atherosclerotic intracranial stenosis (SAIS). MATERIALS AND METHODS Forty-six patients (41 men and 5 women; median, 54 years of age) with forty-eight >or=50% SAISs were enrolled. Procedural feasibility was evaluated by stent success (residual stenosis <or=30%) and procedural time. The primary end point was ischemic stroke in the target-lesion artery territory, including any stroke and death within 30 days. RESULTS Forty-four lesions (91.7%) obtained stent success within a median procedural time of 50.6 minutes. Severe tortuosity correlated with stent failure. Three patients (6.5%, 3/46) had minor strokes within 30 days. All patients were available for follow-up (46 had 30-day follow-up, 45 had 6-month follow-up, 44 had 12- and 18-month follow-up, and 24 had follow-up of >or=24 months), which varied from 1 month to 30.7 months (median, 23.9 months). After 30 days, 1 patient (2.2%, 1/46) developed minor stroke in the target-lesion artery territory at 6.7 months. Primary end point rate was 4.3 per 100 patient years. Angiographic follow-up was performed in 25 patients. Seven restenoses (28%, 7/25) were detected, 1 of which was symptomatic. CONCLUSION Angioplasty with the Apollo stent for symptomatic atherosclerotic intracranial stenosis is feasible. Severe tortuosity is an independent predictor of stent failure. Our clinical outcome seems to compare favorably with results of aspirin therapy, but the restenotic rate was high.
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Affiliation(s)
- W-J Jiang
- Department of Neurology, Beijing Tiantan Hospital, the Capital University of Medical Sciences, Beijing, China.
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Abstract
Seventy-nine consecutive patients with symptomatic atherosclerotic stenosis > or = 50% of intracranial vertebrobasilar artery (VBA) were treated by elective stenting. There were five strokes within 30 days, and three strokes in the VBA territory after 30 days (mean of 812 days). The annual stroke rate in the VBA territory (including any stroke and death within 30 days) was 4.6%. At the last follow-up time, 73 patients were independent (modified Rankin scale grade < or = 2). The outcome compares favorably with medical therapy.
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Affiliation(s)
- W J Jiang
- Neurovascular Angioplasty Team, Department of Neurology, Beijing Tiantan Hospital, The Capital University of Medical Sciences, Beijing, China.
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Abstract
OBJECTIVE To test whether symptomatic severe intracranial atherosclerotic stenosis was associated with a higher subsequent stroke risk than moderate stenosis after elective angioplasty with a balloon-expandable stent and to explore which factors were associated with the subsequent stroke. METHODS Between September 2001 and June 2005, there were 220 symptomatic intracranial atherosclerotic stenoses in 213 patients undergoing elective stenting at our institute. Of these stenoses, 126 in 121 patients were > or =70% severe stenoses, and 94 in 92 patients were 50% to 69% moderate stenoses. Primary endpoints included lesion-related ischemic stroke, and symptomatic brain or subarachnoid hemorrhage. RESULTS Ten primary endpoint events occurred in the severe stenosis group (six within 30 days and four in mean follow-up of 26.0 months after 30 days), and seven occurred in the moderate stenosis group (four within 30 days and three in mean follow-up of 27.6 months after 30 days). There was no significant difference in cumulative probability of primary endpoints between the severe (7.2% at 1 year and 8.2% at 2 years) and moderate (5.3% at 1 year and 8.3% at 2 years) stenosis groups. No single factor was found to be associated with primary endpoints in the moderate stenosis group. Multivariable analysis revealed that stent failure was the only predictor of primary endpoints in the severe stenosis group (hazard ratio 5.31, 95% CI 1.35 to 20.91). CONCLUSION Symptomatic severe intracranial atherosclerotic stenosis did not present a higher subsequent stroke risk than moderate stenosis after elective angioplasty with a balloon-expandable stent. Patients with severe stenosis may benefit from successful stent placement, and randomized trials are necessary to demonstrate this possible benefit.
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Affiliation(s)
- W J Jiang
- Department of Neurology and Interventional Neuroradiology, Beijing Tiantan Hospital, The Capital University of Medical Sciences, No. 6 Tiantan Xili, Beijing 100050, China.
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Abstract
OBJECTIVE To study the frequency, clinical course, and functional outcome of perforator stroke (PS) resulting from elective stenting of symptomatic intracranial stenosis. METHODS Between September 2001 and November 2004, 169 consecutive patients with 181 symptomatic intracranial stenoses underwent stenting procedure at our institute. The preoperative perforator infarct adjacent to the stenotic segment (PIAS) on MRI was evaluated blindly. Patients who developed PS after stenting were enrolled. Each patient was assessed by an experienced stroke neurologist by neurologic examination and NIH Stroke Scale score every day until discharge and at day 30, and by modified Rankin Scale (mRS) score at the end of the first, third, and sixth month, and then at intervals of 6 months. RESULTS PS frequency was 3.0% (5/169 patients). The patients with preoperative PIAS had a higher frequency of PS and PS exacerbation, resulting from intracranial stenting (8.2%, 4/49), vs patients without preoperative PIAS (0.8%, 1/120; p = 0.031). Four PSs occurred during the procedure and one 10 hours after stenting. Four PSs reached the maximum deficit almost at once, and one after 2 hours from onset. All five patients were functionally independent (mRS <or= 1) within 12 months. CONCLUSION Patients with preoperative perforator infarct adjacent to the stenotic segment have a higher perforator stroke frequency after elective stenting of intracranial stenosis. Most perforator strokes occur during the procedure and reach the maximum deficit almost immediately. Functional outcomes are relatively good.
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Affiliation(s)
- W J Jiang
- Interventional Neuroradiology, Beijing Tiantan Hospital, Capital University of Medical Sciences, Beijing, China.
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Abstract
INTRODUCTION The aim of this study was to develop a rat model of chronic irreversible rejection, which is a major causes of late graft loss and retransplantation after orthotopic liver allotransplantation. METHODS Allogeneic liver transplantation was performed in a rat combination of Dark Agouti (DA) to Brown Norway (BN). Group A was left without treatment, group B received cyclosporine' (CsA; 1 mg/kg/d) and group C, CsA (4 mg/kg/d). Animals were followed for 6 months. Liver tissue was harvested to construct a time course of histological changes after liver transplantation using histopathological and morphometric techniques. We compared the total histological score of rejection activity index and survival rates. RESULTS In untreated animals, irreversible acute rejection developed, all animals died within 15 days. In the low-dose CsA group, all animals that survived more than 30 days developed moderate to severe manifestations of chronic liver rejection, with graft infiltration, ductular damage or proliferation, obliterative arteriopathy, and liver fibrosis. No apparent histological alterations were observed in group C. Survival analysis showed significant differences between the three groups. CONCLUSIONS In the rat strain combination of DA --> BN with low-dose immunosuppression, early mild inflammation was followed by the development of chronic rejection.
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Affiliation(s)
- L H Gao
- Dept of Hepatobiliary and Pancreatic Surgery, Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Qingchun Road, 79 Hangzhou 310003, People's Republic of China
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Zhang Q, Yang YQ, Zhang ZY, Li L, Yan WY, Jiang WJ, Xin AG, Lei CX, Zheng ZX. Immunogenicity of a recombinant fusion protein of tandem repeat epitopes of foot-and-mouth disease virus type Asia 1 for guinea pigs. Acta Virol 2003; 46:1-9. [PMID: 12199204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
In this study, the sequences of capsid protein VPI regions of YNAs1.1 and YNAs1.2 isolates of foot-and-mouth disease virus (FMDV) were analyzed and a peptide containing amino acids (aa) 133-158 of VP1 and aa 20-34 of VP4 of FMDV type Asia I was assumed to contain B and T cell epitopes, because it is hypervariable and includes a cell attachment site RGD located in the G-H loop. The DNA fragments encoding aa 133-158 of VP1 and aa 20-34 of VP4 of FMDV type Asia 1 were chemically synthesized and ligated into a tandem repeat of aa 133-158-20 approximately 34-133-158. In order to enhance its immunogenicity, the tandem repeat was inserted downstream of the beta-galactosidase gene in the expression vector pWR590. This insertion yielded a recombinant expression vector pAS1 encoding the fusion protein. The latter reacted with sera from FMDV type Asia 1-infected animals in vitro and elicited high levels of neutralizing antibodies in guinea pigs. The T cell proliferation in immunized animals increased following stimulation with the fusion protein. It is reported for the first time that a recombinant fusion protein vaccine was produced using B and T cell epitopes of FMDV type Asia 1 and that this fusion protein was immunogenic. The fusion protein reported here can serve as a candidate of fusion epitopes for design of a vaccine against FMDV type Asia 1.
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Affiliation(s)
- Q Zhang
- State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, PR China.
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Ding BB, Jiang C, Jiang WJ, Wang J, Gao ES, Tso JK, Shen QX. [Immunocytochemical localization of fertilin beta on human sperm]. Shi Yan Sheng Wu Xue Bao 2001; 34:283-9. [PMID: 12549207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Fertilin is a kind of sperm plasma membrane protein that mimics snake venom protein. It belongs to the ADAMs family of surface proteins that contain a disintegrin and a metalloprotease domain. Fertilin functions in the sperm-egg binding process by connecting the sperm to the egg plasma membrane via a binding site in the disintegrin domain of fertilin beta (HF93). Its localization on the sperm is in the change. In this study, the monoclonal antibody against human fertilin beta was prepared and used to analyze the localization of fertilin beta on capacitated and acrosome-reacted sperm by immunofluorescence and immunoelectron microscopy techniques. The results were as follows: (1) fertilin beta became restricted to the anterior head during the course of capacitation. (2) During the course of acrosome reaction, the expression and localization of fertilin beta changed immensely on the anterior head and restricted to the lateral of posterior head at last. The restrictions of fertilin beta to the anterior head of capacitated sperm of human beings indicated that fertilin beta may be involved in the binding the sperm to the epithelial cells of the oviduct; the restrictions of fertilin beta to the posterior head domain of acrosome-reacted sperm implied its function in sperm-egg binding and fusion.
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Affiliation(s)
- B B Ding
- National Laboratory of Contraceptives and Devices Research, Shanghai Institute of Planned Parenthood Research, Shanghai 200032, China
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37
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Heffernan M, Summers RJ, Thorburn A, Ogru E, Gianello R, Jiang WJ, Ng FM. The effects of human GH and its lipolytic fragment (AOD9604) on lipid metabolism following chronic treatment in obese mice and beta(3)-AR knock-out mice. Endocrinology 2001; 142:5182-9. [PMID: 11713213 DOI: 10.1210/endo.142.12.8522] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Both human GH (hGH) and a lipolytic fragment (AOD9604) synthesized from its C-terminus are capable of inducing weight loss and increasing lipolytic sensitivity following long-term treatment in mice. One mechanism by which this may occur is through an interaction with the beta-adrenergic pathway, particularly with the beta(3)-adrenergic receptors (beta(3)-AR). Here we describe how hGH and AOD9604 can reduce body weight and body fat in obese mice following 14 d of chronic ip administration. These results correlate with increases in the level of expression of beta(3)-AR RNA, the major lipolytic receptor found in fat cells. Importantly, both hGH and AOD9604 are capable of increasing the repressed levels of beta(3)-AR RNA in obese mice to levels comparable with those in lean mice. The importance of beta(3)-AR was verified when long-term treatment with hGH and AOD9604 in beta(3)-AR knock-out mice failed to produce the change in body weight and increase in lipolysis that was observed in wild-type control mice. However, in an acute experiment, AOD9604 was capable of increasing energy expenditure and fat oxidation in the beta(3)-AR knock-out mice. In conclusion, this study demonstrates that the lipolytic actions of both hGH and AOD9604 are not mediated directly through the beta(3)-AR although both compounds increase beta(3)-AR expression, which may subsequently contribute to enhanced lipolytic sensitivity.
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Affiliation(s)
- M Heffernan
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Australia 3800
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38
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Mao AW, Gao ZD, Xu JY, Yang RJ, Xiao XS, Jiang TH, Jiang WJ. Treatment of malignant digestive tract obstruction by combined intraluminal stent installation and intra-arterial drug infusion. World J Gastroenterol 2001; 7:587-92. [PMID: 11819837 PMCID: PMC4688681 DOI: 10.3748/wjg.v7.i4.587] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To study the palliative treatment of malignant obstrution of digestive tract with placement of intraluminal stent combined with intra-arterial infusion of chemotherapeutic drugs.
METHODS: A total of 281 cases of digestive tract malignant obstruction were given per oral (esophagus, stomach, duodenum and jejunum), per anal (colon and rectum) and percutaneous transhepatic (biliary) installation of metallic stent. Among them, 203 cases received drug infusion by cannulation of tumor supplying artery with Seldinger’s technique.
RESULTS: Altogether 350 stents were installed in 281 cases, obstructive symptoms were relieved or ameliorated after installation. Occurrence of restenotic obstruction was 8-43 weeks among those with intra-arterial drug infusion, which was later than 4-26 weeks in the group with only stent installation. The average survival time of the former group was 43 (3-105) weeks, which was significantly longer than 13 (3-24) weeks of the latter group.
CONCLUSION: Intraluminal placement of stent combined with intra-arterial infusion chemotherapy is one of the effective palliative therapies for malignant obstruction of the digestive tract with symptomatic as well as etiological treatment.
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Affiliation(s)
- A W Mao
- Department of Interventional Radiology, Shanghai S.T, Luke's Hospital, 768 Yu Yuan Road, Shanghai 200050, China.
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39
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Ng FM, Sun J, Sharma L, Libinaka R, Jiang WJ, Gianello R. Metabolic studies of a synthetic lipolytic domain (AOD9604) of human growth hormone. Horm Res 2001; 53:274-8. [PMID: 11146367 DOI: 10.1159/000053183] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A synthetic analogue (AOD9604) of the lipolytic domain of human growth hormone (hGH) has been studied for its metabolic actions in obese Zucker rats. Daily treatment with an oral dose of AOD9604 of 500 microg/kg body weight for 19 days reduced over 50% (15.8 +/- 0.6 vs. 35.6 +/- 0.8 g) body weight gain of the animals in comparison with the control. The adipose tissues of the AOD9604--treated animals were found to have an increase in lipolytic activity. In contrast to chronic treatment with intact hGH, chronic treatment with AOD9604 showed no adverse effect on insulin sensitivity of the animals, as demonstrated with euglycemic clamp techniques. The results in the present study suggest that the analogue of the hGH lipolytic domain may have the potential to be developed into an orally usable and safe therapeutic agent for obesity.
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Affiliation(s)
- F M Ng
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic., Australia.
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40
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Ogru E, Wilson JC, Heffernan M, Jiang WJ, Chalmers DK, Libinaki R, Ng F. The conformational and biological analysis of a cyclic anti-obesity peptide from the C-terminal domain of human growth hormone. J Pept Res 2000; 56:388-97. [PMID: 11152298 DOI: 10.1034/j.1399-3011.2000.00771.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The three-dimensional solution structure of antiobesity drug (AOD), a 15-residue, disulfide-bonded, cyclic peptide, cyclo(6,13)-H2N-Leu-Arg-Ile-Val-Gln-Cys-Arg-Ser-Val-Glu-Gly-Ser-Cys-Gly-Phe-OH, derived from the C-terminal domain of the human growth hormone (hGH) (residues 177-191) was determined using two-dimensional 1H NMR spectroscopy. AOD stimulates lipolysis and inhibits lipogenesis, in vitro, in rodent, porcine and human adipose tissues. These biological effects suggest that AOD is a potential therapeutic candidate for the treatment of obesity. Conformational studies of AOD were conducted in aqueous solution and in water/dimethylsulfoxide mixtures. In general, spectral quality was superior in the water/ dimethylsulfoxide mixtures. The cyclic region of AOD in water/dimethylsulfoxide adopts type I beta-turns at residues Ser8-Val9-Glu10-Gly11 and Ser12-Cys13-Gly14-Phe15, each preceded by loop-like structures. Comparison of the conformation of this peptide with residues 177-191 in the native hGH protein X-ray crystal structure indicates that the synthetic peptide retains some structural similarity to the intact protein. This study provides evidence that the C-terminal region of hGH is a specific functional domain of the multifunctional hGH protein.
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Affiliation(s)
- E Ogru
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Monash University, Clayton, Australia
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41
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Ng FM, Jiang WJ, Gianello R, Pitt S, Roupas P. Molecular and cellular actions of a structural domain of human growth hormone (AOD9401) on lipid metabolism in Zucker fatty rats. J Mol Endocrinol 2000; 25:287-98. [PMID: 11116208 DOI: 10.1677/jme.0.0250287] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A lipolytic domain (AOD9401) of human growth hormone (hGH) which resides in the carboxyl terminus of the molecule and contains the amino acid residues 177-191, has been synthesized using solid-phase peptide synthesis techniques. AOD9401 stimulated hormone-sensitive lipase and inhibited acetyl coenzyme A carboxylase (acetyl CoA carboxylase) in isolated rat adipose tissues, in a similar manner to the actions of the intact hGH molecule. The synthetic lipolytic domain mimicked the effect of the intact growth hormone on diacylglycerol release in adipocytes. Chronic treatment of obese Zucker rats with AOD9401 for 20 days reduced the body weight gain of the animals, and the average cell size of the adipocytes of the treated animals decreased from 110 to 80 microm in diameter. Unlike hGH, synthetic AOD9401 did not induce insulin resistance or glucose intolerance in the laboratory animals after chronic treatment. The results suggest that AOD9401 has the potential to be developed into a therapeutic agent for the control of obesity.
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Affiliation(s)
- F M Ng
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Monash University, Clayton, Victoria 3168, Australia.
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42
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Abstract
A small synthetic peptide sequence of human growth hormone (hGH), AOD-9401, has lipolytic and antilipogenic activity similar to that of the intact hormone. Here we report its effect on lipid metabolism in rodent models of obesity and in human adipose tissue to assess its potential as a pharmacological agent for the treatment of human obesity. C57BL/6J (ob/ob) mice were orally treated with either saline (n = 8) or AOD-9401 (n = 10) for 30 days. From day 16 onward, body weight gain in AOD-9401-treated animals was significantly lower than that of saline-treated controls. Food consumption did not differ between the two groups. Analyses of adipose tissue ex vivo revealed that AOD-9401 significantly reduced lipogenic activity and increased lipolytic activity in this tissue. Increased catabolism was also reflected in an acute increase in energy expenditure and glucose and fat oxidation in ob/ob mice treated with AOD-9401. In addition, AOD-9401 increased in vitro lipolytic activity and decreased lipogenic activity in isolated adipose tissue from obese rodents and humans. Together, these findings indicate that oral administration of AOD-9401 alters lipid metabolism in adipose tissue, resulting in a reduction of weight gain in obese animals. The marked lipolytic and antilipogenic actions of AOD-9401 in human adipose tissues suggest that this small synthetic hGH peptide has potential in the treatment of human obesity.
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Affiliation(s)
- M A Heffernan
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.
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43
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Libinaki R, Heffernan M, Jiang WJ, Ogru E, Ignjatovic V, Gianello R, Trickey L, Taylor M, Ng F. Effects of genetic and diet-induced obesity on lipid metabolism. IUBMB Life 1999; 48:109-13. [PMID: 10791924 DOI: 10.1080/713803473] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
C57BL/6J obese (ob/ob) and lean mice fed ad libitum on a normal mouse chow diet (Normal), were compared with lean mice of the same age and strain fed ad libitum on a high-fat diet, consisting of the Normal diet with the addition of beef lard (Lard), from age 3 months for 34 days. The lard-fed mice were seen to have significantly higher (P<0.05) body weight in this 34-day period than that of the other two groups fed on the Normal diet. Epididymal fat depot and adipocyte cell size were significantly larger (P<0.05) in the Lard-fed lean mice and in the obese (ob/ob) mice than were those of the Normal-fed lean mice. Dietary Lard intake did not significantly affect concentrations of plasma triglyceride although those of plasma cholesterol were significantly increased (P<0.05). The development of obesity in these Lard-fed mice appeared to be accelerated and significant.
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Affiliation(s)
- R Libinaki
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
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44
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Steffens DC, O'Connor CM, Jiang WJ, Pieper CF, Kuchibhatla MN, Arias RM, Look A, Davenport C, Gonzalez MB, Krishnan KR. The effect of major depression on functional status in patients with coronary artery disease. J Am Geriatr Soc 1999; 47:319-22. [PMID: 10078894 DOI: 10.1111/j.1532-5415.1999.tb02995.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To examine the effect of major depression on reported functional status in a group of patients with coronary artery disease (CAD). SETTING An inpatient cardiology service. PARTICIPANTS Three hundred thirty-five inpatients with coronary artery disease who were free of dementia, Parkinson's disease, and other primary neurological illnesses. MEASUREMENTS Duke Depression Evaluation Schedule, a structured psychiatric interview which included the Diagnostic Interview Schedule depression subscale, the Cumulative Illness Rating Scale, and two scales for measuring instrumental and self-maintenance activities of daily living. RESULTS Twenty-seven subjects met DSM-IV criteria for major depression. Compared with subjects without major depression, depressed subjects were more than twice as likely to report a self-maintenance ADL deficit and were significantly more likely to report an IADL deficit than were nondepressed subjects (93 vs 71%). In regression models, female gender, older age, greater medical illness severity, and presence of major depression were significant predictors of self-maintenance ADL disability; and female gender, older age, greater medical severity, and presence of major depression significantly predicted greater IADL impairment. CONCLUSION The presence of major depression was associated with functional disability in patients with CAD. Further research is needed to clarify whether antidepressant treatment significantly impacts both affective symptoms and functional status in patients with coronary heart disease.
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Affiliation(s)
- D C Steffens
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina 27710, USA
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45
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Abstract
We evaluated the ability of L-deprenyl, a monoamine oxidase B-inhibitor (MAO-B), to preserve the viability of serum-deprived immortalized retinal precursor cells in vitro. We serum-deprived rat neural retinal ganglion cells immortalized by an incompetent retro virus. We instilled L-deprenyl in concentrations ranging from 0.01 to 100 microM. After 72 hours we performed a cell count of the L-deprenyl cultures and the control (no L-deprenyl instilled) with a hemocytometer and flow cytometry. We used transmission electron microscopy, DNA gel electrophoresis, and flow cytometry to determine the mechanism of cell death. This study showed that all five concentrations of L-deprenyl statistically increased the survival rate of immortalized retinal precursor cells at 72 hours in the serum-deprived medium (P = 0.01, ANOVA test). Ten microM and higher appeared to provide the greatest immortalized retinal precursor cell survival (12.7 x 10(-4) cells) compared to the control (5.8 x 10(-4) cells). Flow cytometry also demonstrated a higher percentage of surviving cells at 10 microM (80%) and 100 microM (76%) than with the control (58%) (P = 0.0017, chi2 test). Transmission electron microscopy, DNA electrophoresis, and flow cytometry showed that the mode of cell death was by apoptosis. This study suggests that L-deprenyl may be worthy of further investigation as a neuroprotective agent to treat chronic open-angle glaucoma.
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Affiliation(s)
- T Ragaiey
- Department of Ophthalmology, Medical University of South Carolina, Charleston, USA
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46
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Zhou SK, Zhao W, Mao QF, Tang W, He ZY, Gu DY, Jiang WJ. [An image analysis of the morphological changes of LH cells during LH release peak induced by LHRH in male rats]. Sheng Li Xue Bao 1997; 49:88-94. [PMID: 9812838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The relationship between the peak of LH release induced by exogenous LHRH and morphological change of LH cells in male rats was investigated by ABC Affinity histochemistry and qualitatively characterized by Medical Image Processing System-I. The serum LH concentration was determined by RIA. During the period of basal secretion of LH (3.76 +/- 0.39 ng/ml), the LH cells might be assigned at a storage state. Most of such cells (56.7%) are round and large, and their cross sectional areas are larger then 340 micron 2, usually containing large vacuoles, while the smaller cells of X-sectional area less then 190 micron 2 counted only 2% of the total population. Thirty minutes after injection of LHRH the serum LH level increased significantly (6.46 +/- 1.6 ng/ml, P < 0.01), there appeared a lot of small angular cells, the average cross sectional areas of LH cells decreased significantly (P < 0.0001). When LHRH was injected at sixty minutes, the LH level reached a peak (18.78 +/- 0.79 ng/ml), the number of the large cells decreased to only 4%, while the small cells increased to 66%, vacuoles were almost disapperanced and a large part of cells (52.6%) became irregular. Thereafter, the LH serum gradually subsided to its original basal level with attendant resumption of the morphology of the LH cells at storage state. It appears that the morphological changes, such as size, shape, vacuoles and so on, of the LH cells may serve as an important index for showing the effect of LHRH on LH secretion.
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Affiliation(s)
- S K Zhou
- Department of Reproductive Biology, Shanghai Institute of Planned Parenthood Research
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47
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Natera SH, Jiang WJ, Ng FM. Reduction of cumulative body weight gain and adipose tissue mass in obese mice: response to chronic treatment with synthetic hGH 177-191 peptide. Biochem Mol Biol Int 1994; 33:1011-21. [PMID: 7987248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The effects of long-term treatment of C57BL/6J (ob/ob) mice with a synthetic carboxylterminal sequence of human growth hormone, hGH 177-191, were investigated. Results indicate that the hGH 177-191 reduced the cumulative body weight gain, and decreased the adipose tissue mass. The lipogenesis in adipose tissues was significantly inhibited by the treatment with hGH 177-191. These findings support the suggestion that hGH 177-191 is the functional domain of hGH for the antilipogenic actions of the intact hormone both in vivo and in vitro. The hGH 177-191 peptide has the potential to be an effective compound for the treatment of human obesity and for the improvement of meat qualities in farm animals.
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Affiliation(s)
- S H Natera
- Department of Biochemistry, Monash University, Clayton, Victoria, Australia
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48
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Nie SQ, Li TL, Jiang WJ, Xue BY, Liang AH, Li GQ, Yang Q. [A comparative study on anti-ulcer action of unprepared and calcined oyster shell]. Zhongguo Zhong Yao Za Zhi 1994; 19:405-7, 446. [PMID: 7802944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
On experimental gastric ulcer models induced by 0.6mol/L HCl, ethyl alcohol or ligation of the pylorus, the preventive effects of unprepared oyster shell, calcined oyster shell 1(900 degrees C, 1h), calcined oyster shell 2(350 degrees C, 8h) were compared in Wistar rats. Results showed that antagonistic effects of calcined oyster shell 1 to the drug pathogenesis of peptic ulcer and the incidence of peptic ulcer after ligation of the pylorus were markedly greater.
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Affiliation(s)
- S Q Nie
- Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing
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49
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Li TL, Jiang WJ, Ma YL, Li C, Yang J. [Influence of processing conditions on quality of calcined concha Osterae]. Zhongguo Zhong Yao Za Zhi 1993; 18:723-5, 763. [PMID: 8011082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Concha Osterae (the shell of Ostera gigas) ignited under different conditions was compared and discussed in terms of appearance features, yielding ratio of ignited product, Ca content of the ignited product, decocting rate of total component, Ca2+ content of decoction and trace element content. Furthermore, calcined Concha Osterae products obtained commercially from 6 cities of China were also compared in regard to the quality.
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Affiliation(s)
- T L Li
- Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing
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50
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Li TL, Jiang WJ, Li C, Ma YL, Yang J. [FeS2 changes in ignited pyritum]. Zhongguo Zhong Yao Za Zhi 1993; 18:662-4, 702. [PMID: 8003226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
FeS2 changes in Pyritum during igniting process were studied systematically by comparing Pyritum ignited under different conditions in terms of S content, Fe content, yielding ratio of ignited product and appearance features. Calcined Pyritum samples purchased from various parts of China were also compared in regard to their quality.
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Affiliation(s)
- T L Li
- Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing
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