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Zhang XS, Liu BC, Du X, Zhang YL, Xu N, Liu XL, Li WM, Lin H, Liang R, Chen CY, Huang J, Yang YF, Zhu HL, Pan L, Wang XD, Li GH, Liu ZG, Zhang YQ, Liu ZF, Hu JD, Liu CS, Li F, Yang W, Meng L, Han YQ, Lin LE, Zhao ZY, Tu CQ, Zheng CF, Bai YL, Zhou ZP, Chen SN, Qiu HY, Yang LJ, Sun XL, Sun H, Zhou L, Liu ZL, Wang DY, Guo JX, Pang LP, Zeng QS, Suo XH, Zhang WH, Zheng YJ, Jiang Q. [To compare the efficacy and incidence of severe hematological adverse events of flumatinib and imatinib in patients newly diagnosed with chronic phase chronic myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:728-736. [PMID: 38049316 PMCID: PMC10630575 DOI: 10.3760/cma.j.issn.0253-2727.2023.09.005] [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] [Grants] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Indexed: 12/06/2023]
Abstract
Objective: To analyze and compare therapy responses, outcomes, and incidence of severe hematologic adverse events of flumatinib and imatinib in patients newly diagnosed with chronic phase chronic myeloid leukemia (CML) . Methods: Data of patients with chronic phase CML diagnosed between January 2006 and November 2022 from 76 centers, aged ≥18 years, and received initial flumatinib or imatinib therapy within 6 months after diagnosis in China were retrospectively interrogated. Propensity score matching (PSM) analysis was performed to reduce the bias of the initial TKI selection, and the therapy responses and outcomes of patients receiving initial flumatinib or imatinib therapy were compared. Results: A total of 4 833 adult patients with CML receiving initial imatinib (n=4 380) or flumatinib (n=453) therapy were included in the study. In the imatinib cohort, the median follow-up time was 54 [interquartile range (IQR), 31-85] months, and the 7-year cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) were 95.2%, 88.4%, 78.3%, and 63.0%, respectively. The 7-year FFS, PFS, and OS rates were 71.8%, 93.0%, and 96.9%, respectively. With the median follow-up of 18 (IQR, 13-25) months in the flumatinib cohort, the 2-year cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) were 95.4%, 86.5%, 58.4%, and 46.6%, respectively. The 2-year FFS, PFS, and OS rates were 80.1%, 95.0%, and 99.5%, respectively. The PSM analysis indicated that patients receiving initial flumatinib therapy had significantly higher cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) and higher probabilities of FFS than those receiving the initial imatinib therapy (all P<0.001), whereas the PFS (P=0.230) and OS (P=0.268) were comparable between the two cohorts. The incidence of severe hematologic adverse events (grade≥Ⅲ) was comparable in the two cohorts. Conclusion: Patients receiving initial flumatinib therapy had higher cumulative incidences of therapy responses and higher probability of FFS than those receiving initial imatinib therapy, whereas the incidence of severe hematologic adverse events was comparable between the two cohorts.
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Affiliation(s)
- X S Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - B C Liu
- National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X Du
- The Second People's Hospital of Shenzhen, Shenzhen 518035, China
| | - Y L Zhang
- Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - N Xu
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X L Liu
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - W M Li
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H Lin
- First Hospital of Jilin University, Changchun 130021, China
| | - R Liang
- Xijing Hospital, Airforce Military Medical University, Xi'an 710032, China
| | - C Y Chen
- Qilu Hospital of Shandong University, Jinan 250012, China
| | - J Huang
- The Fourth Affiliated Hospital of Zhejiang University, Hangzhou 322000, China
| | - Y F Yang
- Institute of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - H L Zhu
- Institute of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Pan
- Institute of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X D Wang
- Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - G H Li
- Xi'an International Medical Center Hospital, Xi'an 710038, China
| | - Z G Liu
- Shengjing Hospital of China Medical University, Shenyang 110020, China
| | - Y Q Zhang
- The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Z F Liu
- The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - J D Hu
- Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C S Liu
- First Hospital of Jilin University, Changchun 130021, China
| | - F Li
- The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - W Yang
- Shengjing Hospital of China Medical University, Shenyang 110020, China
| | - L Meng
- Tongji Hospital of Tongji Medical College, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Q Han
- The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - L E Lin
- Hainan General Hospital, Haikou 570311, China
| | - Z Y Zhao
- Hainan General Hospital, Haikou 570311, China
| | - C Q Tu
- Shenzhen Baoan Hospital, Shenzhen University Second Affiliated Hospital, Shenzhen 518101, China
| | - C F Zheng
- Shenzhen Baoan Hospital, Shenzhen University Second Affiliated Hospital, Shenzhen 518101, China
| | - Y L Bai
- Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - Z P Zhou
- The Second Hospital Affiliated to Kunming Medical University, Kunming 650106, China
| | - S N Chen
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation of Soochow University, Suzhou 215006, China
| | - H Y Qiu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation of Soochow University, Suzhou 215006, China
| | - L J Yang
- Xi'an International Medical Center Hospital, Xi'an 710117, China
| | - X L Sun
- The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - H Sun
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - L Zhou
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z L Liu
- Huazhong University of Science and Technology Union Shenzhen Hospital, Nanshan Hospital, Shenzhen 518000, China
| | - D Y Wang
- Huazhong University of Science and Technology Union Shenzhen Hospital, Nanshan Hospital, Shenzhen 518000, China
| | - J X Guo
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China
| | - L P Pang
- Peking University Shenzhen Hospital, Shenzhen 516473, China
| | - Q S Zeng
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - X H Suo
- Handan Central Hospital, Handan 057150, China
| | - W H Zhang
- First Hospital of Shangxi Medical University, Taiyuan 300012, China
| | - Y J Zheng
- First Hospital of Shangxi Medical University, Taiyuan 300012, China
| | - Q Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
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Zhang JZ, Shi W, Zou M, Zeng QS, Feng Y, Luo ZY, Gan HT. Diagnosis, prevalence, and outcomes of sarcopenia in kidney transplantation recipients: A systematic review and meta-analysis. J Cachexia Sarcopenia Muscle 2023; 14:17-29. [PMID: 36403578 PMCID: PMC9891953 DOI: 10.1002/jcsm.13130] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/14/2022] [Accepted: 10/25/2022] [Indexed: 11/22/2022] Open
Abstract
The prevalence of sarcopenia and its clinical predictors and clinical impact vary among kidney transplant recipients (KTRs), in part because of different diagnostic criteria. This study aimed to assess the reported diagnosis criteria of sarcopenia and compare them in terms of prevalence, clinical predictors, and impact of sarcopenia. The Medline, Embase, and Cochrane Library were searched for the full-length reports published until 28 January 2022. The subgroup analysis, meta-regression, and sensitivity analysis were performed and heterogeneity was assessed using the I2 . A total of 681 studies were retrieved, among which only 23 studies (including 2535 subjects, 59.7% men, mean age 49.8 years) were eventually included in the final analysis. The pooled prevalence in these included studies was 26% [95% confidence interval (95% CI): 20-34%, I2 = 93.45%], including 22% (95% CI: 14-32%, I2 = 88.76%) in men and 27% (95% CI: 14-41%, I2 = 90.56%) in women (P = 0.554 between subgroups). The prevalence of sarcopenia diagnosed using low muscle mass was 34% (95% CI: 21-48%, I2 = 95.28%), and the prevalence of using low muscle mass in combination with low muscle strength and/or low physical performance was 21% (95% CI: 15-28%, I2 = 90.37%) (P = 0.08 between subgroups). In meta-regression analyses, the mean age (regression coefficient: 1.001, 95% CI: 0.991-1.011) and percentage male (regression coefficient: 0.846, 95% CI: 0.367-1.950) could not predict the effect size. Lower body mass index (odds ratio (OR): 0.57, 95% CI: 0.39-0.84, I2 = 61.5%), female sex (OR: 0.31, 95% CI: 0.16-0.61, I2 = 0.0%), and higher age (OR: 1.08, 95% CI: 1.05-1.10, I2 = 10.1%) were significantly associated with a higher risk for sarcopenia in KTRs, but phase angle (OR: 0.81, 95% CI: 0.16-4.26, I2 = 84.5%) was not associated with sarcopenia in KTRs. Sarcopenia was not associated with rejections (risk ratio (RR): 0.67, 95% CI: 0.23-1.92, I2 = 12.1%), infections (RR: 1.03, 95% CI: 0.34-3.12, I2 = 87.4%), delayed graft functions (RR: 0.81, 95% CI: 0.46-1.43, I2 = 0.0%), and death (RR: 0.95, 95% CI: 0.32-2.82, I2 = 0.0%) in KRTs. Sarcopenia was found to be very common in KRTs. However, we have not found that sarcopenia had a negative impact on clinical health after kidney transplantation. Large study cohorts and multicentre longitudinal studies in the future are urgently needed to explore the prevalence and prognosis of sarcopenia in kidney transplant patients.
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Affiliation(s)
- Jin-Zhi Zhang
- Department of Infectious Disease Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Shi
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Min Zou
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qi-Shan Zeng
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yue Feng
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhen-Yi Luo
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hua-Tian Gan
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Sun Y, Yang HJ, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP, Fu WZ. A selective nerve-sparing procedure for patients with locally advanced rectal cancer with seminal vesicle infiltration (with video). Tech Coloproctol 2023; 27:83-84. [PMID: 35947240 DOI: 10.1007/s10151-022-02681-2] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 08/04/2022] [Indexed: 01/12/2023]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - H J Yang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - W Z Fu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China.
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Zeng QS, Zou M, Nie J, Yang JH, Luo ZY, Gan HT. Efficacy and Safety of Endoscopic Submucosal Dissection for Rectal Tumors Extending Versus Not to the Dentate Line: A Systematic Review and Meta-Analysis. J Clin Gastroenterol 2022; 56:518-528. [PMID: 35389375 DOI: 10.1097/mcg.0000000000001692] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
GOALS To evaluate the outcomes of endoscopic submucosal dissection (ESD) for rectal tumors extending to the dentate line (RTDLs) compared with rectal tumors not extending to the dentate line (non-RTDLs). BACKGROUND There is limited composite data on the outcomes of ESD for RTDLs versus non-RTDLs. STUDY We performed a systematic review and meta-analysis of studies that reported the clinical outcomes of ESD for RTDLs and non-RTDLs. Main outcomes were pooled estimated rates of en bloc/complete/curative resection, local recurrence, and incidence of bleeding, perforation, stricture, anal pain, and fever. RESULTS Six studies were enrolled, including 265 cases of RTDLs and 788 cases of non-RTDLs. The en bloc resection rate was comparable for RTDLs and non-RTDLs [odds ratio (OR), 1.04; 95% confidence interval (CI), 0.55-1.95; P=0.90]. The complete resection rate was significantly lower for RTDLs (OR, 0.59; 95% CI, 0.41-0.83; P=0.003), as well as the curative resection rate (OR, 0.57; 95% CI, 0.38-0.87; P=0.010). The rates of stricture, postoperative anal pain and local recurrence were significantly higher for RTDLs than non-RTDLs (OR, 3.07; 95% CI, 1.01-9.31; P=0.05) (OR, 42.10; 95% CI, 4.73-374.97; P=0.0008) (OR, 3.00; 95% CI, 1.13-7.96; P=0.03), but the higher rates of postoperative bleeding and fever for RTDLs were not significantly (OR, 1.33; 95% CI, 0.53-3.30; P=0.54) (OR, 2.23; 95% CI, 0.55-9.07; P=0.26), as well as its lower perforation rate (OR, 0.85; 95% CI, 0.27-2.63; P=0.78). CONCLUSIONS Despite its inferior outcomes than non-RTDLs, ESD is still a feasible and safe treatment for RTDLs if appropriate lesions are treated by experienced operators.
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Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease
| | - Min Zou
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease
| | - Jiao Nie
- Department of Gastroenterology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Hui Yang
- Department of Gastroenterology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen-Yi Luo
- Department of Gastroenterology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hua-Tian Gan
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease
- Department of Gastroenterology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Zou M, Zeng QS, Nie J, Yang JH, Luo ZY, Gan HT. The Role of E3 Ubiquitin Ligases and Deubiquitinases in Inflammatory Bowel Disease: Friend or Foe? Front Immunol 2021; 12:769167. [PMID: 34956195 PMCID: PMC8692584 DOI: 10.3389/fimmu.2021.769167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023] Open
Abstract
Inflammatory bowel disease (IBD), which include Crohn’s disease (CD) and ulcerative colitis (UC), exhibits a complex multifactorial pathogenesis involving genetic susceptibility, imbalance of gut microbiota, mucosal immune disorder and environmental factors. Recent studies reported associations between ubiquitination and deubiquitination and the occurrence and development of inflammatory bowel disease. Ubiquitination modification, one of the most important types of post-translational modifications, is a multi-step enzymatic process involved in the regulation of various physiological processes of cells, including cell cycle progression, cell differentiation, apoptosis, and innate and adaptive immune responses. Alterations in ubiquitination and deubiquitination can lead to various diseases, including IBD. Here, we review the role of E3 ubiquitin ligases and deubiquitinases (DUBs) and their mediated ubiquitination and deubiquitination modifications in the pathogenesis of IBD. We highlight the importance of this type of posttranslational modification in the development of inflammation, and provide guidance for the future development of targeted therapeutics in IBD.
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Affiliation(s)
- Min Zou
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Qi-Shan Zeng
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Jiao Nie
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Hui Yang
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen-Yi Luo
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Hua-Tian Gan
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
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6
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Yang Y, Zeng QS, Zou M, Zeng J, Nie J, Chen D, Gan HT. Targeting Gremlin 1 Prevents Intestinal Fibrosis Progression by Inhibiting the Fatty Acid Oxidation of Fibroblast Cells. Front Pharmacol 2021; 12:663774. [PMID: 33967807 PMCID: PMC8100665 DOI: 10.3389/fphar.2021.663774] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/08/2021] [Indexed: 02/05/2023] Open
Abstract
Intestinal fibrosis is a consequence of continuous inflammatory responses that negatively affect the quality of life of patients. By screening altered proteomic profiles of mouse fibrotic colon tissues, we identified that GREM1 was dramatically upregulated in comparison to that in normal tissues. Functional experiments revealed that GREM1 promoted the proliferation and activation of intestinal fibroblast cells by enhancing fatty acid oxidation. Blocking GREM1 prevented the progression of intestinal fibrosis in vivo. Mechanistic research revealed that GREM1 acted as a ligand for VEGFR2 and triggered downstream MAPK signaling. This facilitated the expression of FAO-related genes, consequently enhancing fatty acid oxidation. Taken together, our data indicated that targeting GREM1 could represent a promising therapeutic approach for the treatment of intestinal fibrosis.
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Affiliation(s)
- Yang Yang
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Gastroenterology, Daping Hospital, Army Medical University, Chongqing, China
| | - Qi-Shan Zeng
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Min Zou
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Jian Zeng
- Department of Gastroenterology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Jiao Nie
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - DongFeng Chen
- Department of Gastroenterology, Daping Hospital, Army Medical University, Chongqing, China
| | - Hua-Tian Gan
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
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7
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Sun Y, Yang HJ, Zhang ZC, Zhou YD, Li P, Zeng QS, Liu SX, Zhang XP. Fascial space priority approach for laparoscopic en bloc extended right hemicolectomy with pancreaticoduodenectomy for locally advanced colon cancer. Tech Coloproctol 2021; 25:1085-1087. [PMID: 33864526 DOI: 10.1007/s10151-021-02426-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/01/2021] [Indexed: 12/18/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - H J Yang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - S X Liu
- Department of General Surgery, Hubei No. 3 People's Hospital, Wuhan, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China.
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8
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Sun Y, Yang HJ, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP. Fascial space priority approach for laparoscopic supralevator posterior pelvic exenteration with nerve sparing: anatomy and technique. Tech Coloproctol 2021; 25:747-748. [PMID: 33515339 DOI: 10.1007/s10151-020-02406-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/28/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - H J Yang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.
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Sun Y, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP. Fascial space priority approach for the management of the lateral ligaments in laparoscopic total mesorectal excision of the rectum. Tech Coloproctol 2020; 25:475-477. [PMID: 33095341 DOI: 10.1007/s10151-020-02360-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/10/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China.
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10
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Sun Y, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP. High ligation of the inferior mesenteric artery with nerve-sparing in laparoscopic surgery for advanced colorectal cancer. Tech Coloproctol 2020; 25:343-344. [PMID: 33029660 DOI: 10.1007/s10151-020-02355-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 09/29/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China.
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11
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Zeng QS, Ye LS, Wu CC, Liu JR, Zhang QY, Bai S, Hu B. Pyloric gland adenoma in the duodenal bulb: case report of a giant laterally spreading tumor treated with endoscopic submucosal dissection. Endoscopy 2019; 51:E130-E131. [PMID: 30866018 DOI: 10.1055/a-0862-0098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Lian-Song Ye
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Chun-Cheng Wu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Jian-Rong Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Qiong-Ying Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Shuai Bai
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
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12
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Zeng QS, Wu CC, Liu W, Ye LS, Jiang S, Zhang YH, Hu B. Correction: Endoscopic Placement of a U-Shaped Plastic Stent in Patients With Recurrent Acute Pancreatitis and Incomplete Pancreas Divisum. Am J Gastroenterol 2019; 114:695. [PMID: 30807295 DOI: 10.14309/ajg.0000000000000195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Sun AN, Tian XP, Cao XS, Ouyang J, Gu J, Xu KL, Yu K, Zeng QS, Sun ZM, Chen GA, Gao SJ, Zhou J, Wang JH, Yang LH, Luo JM, Zhang M, Guo XH, Wang XM, Zhang X, Shi KQ, Sun H, Ding XM, Hu JD, Zheng RJ, Zhao HG, Hou M, Wang X, Chen FP, Zhu Y, Liu H, Huang DP, Liao AJ, Ma LM, Su LP, Liu L, Zhou ZP, Huang XB, Sun XM, Wu DP. [Efficacy and safety of IA regimen containing different doses of idarubicin in de-novo acute myeloid leukemia for adult patients]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:1017-1023. [PMID: 29365393 PMCID: PMC7342198 DOI: 10.3760/cma.j.issn.0253-2727.2017.12.003] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
目的 探讨含不同剂量去甲氧柔红霉素(IDA 8、10、12 mg/m2)的IA方案诱导治疗成人初发急性髓系白血病(AML)(非急性早幼粒细胞白血病)的临床疗效和安全性。 方法 采用多中心、单盲、非随机、临床对照研究,纳入2011年5月至2015年3月苏州大学附属第一医院及其他36家单位收治的1 215例成人初发AML患者,根据诱导化疗方案中IDA的剂量对患者进行分组,分析不同剂量IDA联合阿糖胞苷(100 mg/m2)组成的IA方案在成人初发AML诱导治疗中的完全缓解(CR)率、血液学及非血液学不良事件。 结果 可纳入缓解率分析的AML患者共1 207例,IDA 8 mg/m2、10 mg/m2和12 mg/m2组的CR率分别为73.6%(215/292)、84.1%(662/787)和86.7%(111/128),差异有统计学意义(P<0.001);以IDA 8 mg/m2组为参照组,在调整了年龄、骨髓原始细胞比例、FAB分型、危险度分层后,IDA 10 mg/m2和IDA 12 mg/m2为影响患者CR的有利因素[OR=0.49(95% CI 0.34~0.70),P<0.001;OR=0.36(95%CI 0.18~0.71),P=0.003]。在中、低危组中三组CR率分别为76.5%(163/213)、86.9%(506/582)和86.1%(68/79),差异有统计学意义(P=0.007);在调整了年龄、骨髓原始细胞比例、FAB分型因素后,IDA 10 mg/m2为影响患者CR的有利因素[OR=0.47(95% CI 0.31~0.71),P<0.001]。在高危组中,三组CR率分别为50.0%(18/36)、60.6%(43/71)和81.8%(18/22),差异无统计学意义(P=0.089),但在调整了年龄、骨髓原始细胞比例、FAB分型因素后,IDA 12 mg/m2为影响患者CR的有利因素[OR=0.22(95% CI 0.06~0.80),P=0.022]。8 mg/m2、10 mg/m2和12 mg/m2组中性粒细胞≤0.5×109/L的中位持续时间分别为14(11~18)、15(11~20)和18(14~22)d,差异有统计学意义(P=0.012);三组PLT≤20×109/L的中位持续时间分别为14(7~17)、15(11~20)和17(15~21)d,差异有统计学意义(P=0.001);三组肺部感染发生率分别为9.8%、13.5%和25.2%,差异有统计学意义(P<0.001)。 结论 在中国成人(18~60岁)初发AML中,建议中、低危组患者采用含IDA 10 mg/m2的IA方案进行诱导治疗;而高危组AML建议选择含IDA 12 mg/m2的IA方案进行诱导治疗。
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Affiliation(s)
- A N Sun
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, Soochow University, Suzhou Institute of Blood and Marrow Transplantation, Suzhou 215006, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - D P Wu
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, Soochow University, Suzhou Institute of Blood and Marrow Transplantation, Suzhou 215006, China
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Zeng QS, Yang J, Wu CC, Ye LS, Liu W, Zeng HZ, Jiang S, Zhang YH, Yuan XL, Zeng XH, Luo YH, Hu B. Short-term effect of a negative colonoscopy in patients with functional constipation. Proc AMIA Symp 2019; 32:18-21. [PMID: 30956573 PMCID: PMC6442907 DOI: 10.1080/08998280.2018.1502510] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/07/2018] [Accepted: 07/17/2018] [Indexed: 02/07/2023] Open
Abstract
The yield of colonoscopy for neoplasia among patients with chronic constipation is very low. However, a negative colonoscopy may benefit these patients by decreasing anxiety and thereby alleviating constipation symptoms. We performed a prospective study to characterize the effect of a negative colonoscopy in patients with functional constipation. Seventy-five patients with chronic constipation were enrolled, and 69 patients were diagnosed with functional constipation through the Rome III criteria. After excluding patients whose constipation symptoms were affected by medications (e.g., laxatives, prokinetics), 45 patients were included in the study. Among the 45 patients, the average health-related anxiety score decreased from 21.0 to 15.6 at 1 week after colonoscopy (P < 0.01). Sustained improvement was observed in anxiety scores at 1 month (14.0), 2 months (12.4), and 6 months (11.2). Mean constipation symptom score was also decreased at 1 week (8.7), 1 month (8.0), 2 months (7.6), and 6 months (6.8) compared with the precolonoscopy period (11.5; P < 0.01). These results suggest that a negative colonoscopy in patients with functional constipation is associated with a decline in health-related anxiety and constipation symptom scores. (Registration number: ChiCTR-OOh-16008488).
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Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Juliana Yang
- Division of Digestive and Liver Diseases, University of Texas Southwestern Medical CenterDallasTexas
| | - Chun-Cheng Wu
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Lian-Song Ye
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Wei Liu
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Hong-Ze Zeng
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Shan Jiang
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Yu-Hang Zhang
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Xiang-Lei Yuan
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Xian-Hui Zeng
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Yong-Hong Luo
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital of Sichuan UniversityChengduSichuan, China
- Corresponding author: Bing Hu, MD,Department of Gastroenterology, West China Hospital of Sichuan UniversityNo. 37 Guo Xue XiangChengduSichuan 610041, China (e-mail:)
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15
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Zeng HZ, Liu Q, Chen HL, Liu W, Zeng QS, Wu CC, Hu B. A pilot single-center prospective randomized trial to assess the short-term effect of a flashing warning light on reducing fluoroscopy time and radiation exposure during ERCP. Gastrointest Endosc 2018; 88:261-266. [PMID: 29559225 DOI: 10.1016/j.gie.2018.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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] [Received: 11/13/2017] [Accepted: 03/11/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS ERCP has the risk of exposure to ionizing radiation. Performers may unconsciously increase fluoroscopy time (FT) because of a lack of radiation protection awareness. This study investigates whether a flashing warning light adopted as a behavioral intervention for performers reduces FT and radiation exposure during ERCP. METHODS We conducted a prospective randomized trial of 200 therapeutic ERCPs. A flashing warning light was placed on top of the endoscopy monitor. Cases were consecutively enrolled and randomly assigned to 2 groups in a 1:1 ratio. In the warning light group, the light was on when the fluoroscopy foot pedal was depressed; in the control group, the light was off. Fluoroscopy and procedure-related data were recorded. RESULTS The median FT and dose-area product (DAP) for the warning light group versus the control group were 142.5 seconds versus 175.0 seconds (P = .045) and 856.8 μGy∙m2 versus 1054.4 μGy∙m2 (P = .043). In a multivariable analysis, the use of the warning light was found to reduce FT by 15.4% (-27.0 seconds; P = .042). DAP reduction because of the decreased FT was 15.2% (160.3 μGy∙m2). The reduction in patient effective dose per case was .42 mSv, equivalent to 21 chest radiographs. No adverse events or interference with the procedures because of the warning light were noted. CONCLUSIONS The use of a flashing warning light is a feasible way to reduce FT and radiation exposure during ERCP. (Clinical trial registration number: ChiCTR-IPR-14005349.).
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Affiliation(s)
- Hong-Ze Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qin Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong-Lin Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chun-Cheng Wu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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16
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Zeng QS, Wen ZH, Wang QM, Luo YH, Hu B. Double percutaneous endoscopic gastrostomies for a refractory duodenal fistula. Gastrointest Endosc 2018; 88:190-192. [PMID: 29352972 DOI: 10.1016/j.gie.2018.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 01/11/2018] [Indexed: 02/07/2023]
Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Zhong-Hui Wen
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Qi-Ming Wang
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Yong-Hong Luo
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
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17
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Liu W, Zhang LP, Xu M, Zeng HZ, Zeng QS, Chen HL, Liu Q, Tang SJ, Hu B. "Post-cut": An endoscopic technique for managing impacted biliary stone within an entrapped extraction basket. Arab J Gastroenterol 2018. [PMID: 29519631 DOI: 10.1016/j.ajg.2018.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND STUDY AIMS Ampullary impaction of an entrapped stone-basket complex is not an infrequent yet challenging event during endoscopic retrograde cholangiopancreatography (ERCP). The aim of this study is to evaluate the feasibility, safety, and efficacy of "post-cut" for the management of such scenarios. PATIENTS AND METHODS Patients with impacted biliary stone with an entrapped basket during ERCP at West China Hospital, Chengdu, China, from October 2004 to August 2014 were included in this retrospective study. Adequate biliary sphincterotomy was performed in all cases before attempted stone basket removal. Using free hand needle knife techniques, the authors extended the sphincterotomy along the long axis of the distal common bile duct to manage the biliary stone-basket impaction. In comparison with "pre-cut", the authors coined the term "post-cut" referring to this technique. The feasibility, safety, and potential complications of post-cut were analysed. RESULTS "Post-cut" was performed in consecutive 10 cases of impacted biliary stone within an entrapped extraction basket. The size of the removed stone ranged from 6 mm to 13 mm. The length of post-cut is 2 mm to 4 mm. The impacted basket was easily retrieved in all patients without complications, including bleeding, perforation, and pancreatitis. CONCLUSION "Post-cut" is a feasible, effective, and safe endoscopic technique when impaction of a biliary stone with an entrapped extraction basket develops.
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Affiliation(s)
- Wei Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Lin-Ping Zhang
- Endoscopy Center, Shang Jin Nan Fu Hospital, Chengdu, China
| | - Mei Xu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Hong-Ze Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Hong-Lin Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Qin Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Shou-Jiang Tang
- Division of Digestive Diseases, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.
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18
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Zeng QS, Wu CC, Liu W, Ye LS, Jiang S, Zhang YH, Hu B. Endoscopic Placement of a U-Shaped Plastic Stent in Patients With Recurrent Acute Pancreatitis and Incomplete Pancreas Divisum. Am J Gastroenterol 2017; 112:1777. [PMID: 29215619 DOI: 10.1038/ajg.2017.388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Chun-Cheng Wu
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Wei Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Lian-Song Ye
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Shan Jiang
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Yu-Hang Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Sichuan, P.R. China
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19
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Yang L, Li HY, Wang PW, Wu SY, Guo GQ, Liao B, Guo QL, Fan XQ, Huang P, Lou HB, Guo FM, Zeng QS, Sun T, Ren Y, Chen LY. Structural responses of metallic glasses under neutron irradiation. Sci Rep 2017; 7:16739. [PMID: 29196681 PMCID: PMC5711955 DOI: 10.1038/s41598-017-17099-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 10/16/2017] [Accepted: 11/20/2017] [Indexed: 11/29/2022] Open
Abstract
Seeking nuclear materials that possess a high resistance to particle irradiation damage is a long-standing issue. Permanent defects, induced by irradiation, are primary structural changes, the accumulation of which will lead to structural damage and performance degradation in crystalline materials served in nuclear plants. In this work, structural responses of neutron irradiation in metallic glasses (MGs) have been investigated by making a series of experimental measurements, coupled with simulations in ZrCu amorphous alloys. It is found that, compared with crystalline alloys, MGs have some specific structural responses to neutron irradiation. Although neutron irradiation can induce transient vacancy-like defects in MGs, they are fully annihilated after structural relaxation by rearrangement of free volumes. In addition, the rearrangement of free volumes depends strongly on constituent elements. In particular, the change in free volumes occurs around the Zr atoms, rather than the Cu centers. This implies that there is a feasible strategy for identifying glassy materials with high structural stability against neutron irradiation by tailoring the microstructures, the systems, or the compositions in alloys. This work will shed light on the development of materials with high irradiation resistance.
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Affiliation(s)
- L Yang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China.
| | - H Y Li
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - P W Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - S Y Wu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - G Q Guo
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - B Liao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Q L Guo
- Department of Mechanical & Aerospace Engineering, Missouri University of Science & Technology, Rolla, MO, 65409, USA
| | - X Q Fan
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P.R. China
| | - P Huang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P.R. China
| | - H B Lou
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 1690 Cailun Road, Pudong, Shanghai, 201203, P.R. China
| | - F M Guo
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - Q S Zeng
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 1690 Cailun Road, Pudong, Shanghai, 201203, P.R. China
| | - T Sun
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - Y Ren
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - L Y Chen
- Department of Mechanical & Aerospace Engineering, Missouri University of Science & Technology, Rolla, MO, 65409, USA
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20
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Li XH, Su ZQ, Li JY, Liu Q, Zeng QS, Li SY. [Measurement and analysis of tracheal inner diameter in Chinese adults using multi-slice spiral CT, multi-planar reconstruction and special window technique]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:284-288. [PMID: 28395408 DOI: 10.3760/cma.j.issn.1001-0939.2017.04.008] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To measure the inner diameter of tracheal(TD) in Chinese adults by multi-slice spiral CT(MSCT), multi-planar reconstruction(MPR) with special window technique and analyze its influencing factors. Methods: A total of 824 normal adults(male 435, female 389) and 16 patients with small peripheral pulmonary nodules(SPN) receiving chest multi-slice spiral CT (MSCT) in the physical examination at the First Affiliated Hospital of Guangzhou Medical University between January, 2014 and December, 2015 were included and their records were retrospectively analyzed. The 16 patients with SPN received bronchoscopy and the images were recorded followed by measurement of tracheal diameter using software. MSCT and MPR images were obtained by the 3Dview software, and the inner diameter of the trachea at 4 horizontal positions were measured by special window technique (window width 500 Hu, window level 100 Hu): thoracic entrance (TD(1)), aortic arch (TD(2)), 2 cm higher than the carina of trachea (TD(3)) and the narrowest trachea (TD(4)). Results: The results of bronchoscopy and software measurement in 16 patients were consistent with those of MSCT and MPR combined with special window technique (P>0.05). The TD at 4 positions in adult males were larger than those of adult females (P<0.01). The TD values at each position for males and females were as follows: (18.9±1.7) and (15.6±1.3) mm (t=30.9, P<0.01) for TD(1), (18.8±1.6) and (16.1±1.2) mm (t=28.0, P<0.01) for TD(2), (19.0±1.6) and (16.3±1.3) mm (t=26.5, P<0.01) for TD(3), (18.4±1.5) and (15.5±1.1) mm (t=31.3, P<0.01) for TD(4), respectively. The age, weight and BMI were not significantly correlated with the tracheal diameter (P>0.05). The height was linearly correlated with the tracheal diameter: for males, TD(1)=0.071× height (cm) + 6.964 (r=0.249, P<0.05), TD(2)=0.064 × height (cm) + 7.898 (r=0.246, P<0.05), TD(3)=0.074 × height (cm) + 6.533 (r=0.279, P<0.05), TD(4)=0.056 × height(cm) + 8.811(r=0.226, P<0.05); while for females, TD(1)= 0.046× height (cm) + 8.331 (r=0.183, P<0.05), TD(2) = 0.058 × height (cm)+ 6.950(r=0.248, P<0.05), TD(3)=0.059 × height (cm)+ 7.052 (r=0.235, P<0.05), TD(4) =0.044× height (cm) + 8.520 (r=0.208, P<0.05). Conclusion: MSCT and MPR combined with special window technique are accurate and feasible for the measurement of adult tracheal diameter. The diameter of the trachea in males is larger than that in females, and it is positively correlated with height, but not with age, body weight and BMI. The tracheal diameter can be evaluated by linear regression equation.
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Affiliation(s)
- X H Li
- State Key Laboratory of Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Disease, Guangzhou 510120, China
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Xie N, Chen DH, Lin YN, Wu SZ, Gu YY, Zeng QS, Zhai YY, Yang LY, Xu JX. [Pulmonary surfactant protein adenosine triphosphate-binding-cassette-A3 gene composite mutations in infant congenital interstitial lung disease: report of a case and review of literature]. Zhonghua Er Ke Za Zhi 2017; 54:761-766. [PMID: 27784479 DOI: 10.3760/cma.j.issn.0578-1310.2016.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To report a case of the pulmonary surfactant protein(SP) adenosine triphosphate-binding-cassette-A3 (ABCA3) gene mutations in infant congenital interstitial lung disease(ILD), and review the related literature, to investigate the relationships of ABCA3 gene mutation associated with ILD in infants. Method: A 6-months-old boy was hospitalized in the department of Pediatrics of the First Affiliated Hospital of Guangzhou Medical University. The clinical, radiological, histological information from transbronchial lung biopsy (TBLB) and genetic testing in this case was analyzed; 12 reports retrieved on literature search at Pubmed, OVID databases from 2004 to 2015 by using the ABCA3 as keyword were reviewed and analyzed. Result: (1)The patient, a 6-months-old boy, had progressive tachypnea and dyspnea since 4 months old. Physical examination on admission revealed respiratory rate of 78 times/min , heart rate of 187 times/min, SpO2 0.93(mask oxygen-inspiration with 6 L/min), scattered fine moist crackles could be heard over the both lungs, clubbing fingers were found. High-resolution computed tomography(HRCT) revealed diffuse ground-glass opacity, interlobular and intralobular septal thickening. Lung biopsies showed evidences of the alveolar cavity atelectatic changes and interstitial fibrosis. SP-A and SP-B were negative in immunohistochemical stainting. SP-related gene sequence analysis found that there was compound heterozygous missense mutation of ABCA3 gene in c. 1942A>G, c.2701-33G>C and c. 991-105C>A. (2)The review of related literature found that totally 12 cases were reported. The main manifestations were progressive tachypnea and dyspnea, age of onset was between birth and 4 years of age. The imaging characteristics of chest HRCT revealed diffuse infiltration or diffuse ground-glass pattern in the lung. PROGNOSIS 6 cases died, and 6 cases survived, including 4 cases with pulmonary function disturbance to different degrees; 12 cases had ABCA3 gene mutations, 9 cases had composite ABCA3 gene mutations, in 11 cases the mutation occured in the exon of coding region, in 1 case in the intron, 9 cases had heterozygous mutations, 3 cases had homozygous mutations. Conclusion: The main phenotypes of ABCA3 mutation associated with ILD were full term neonatal respiratory distress syndrome or progressive tachypnea or dyspnea unexplained in infants. The chest HRCT showed two diffuse pulmonary interstitial changes. ABCA3 mutation mainly was multi-site composite mutations and heterozygous mutations in the exon of coding region.
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Affiliation(s)
- N Xie
- *Department of Pediatrics, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Juliana Yang
- Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Wei Liu
- Department of Gastroenterology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hong-Lin Chen
- Department of Gastroenterology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
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Zeng QS, Chen HL, Liu Q, Zeng HZ, Wang QM, Liu W, Hu B. Endoscopic removal of a migrated and long-indwelling self-expandable metal stent. Endoscopy 2015; 47 Suppl 1 UCTN:E299-300. [PMID: 26099103 DOI: 10.1055/s-0034-1392207] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qi-Shan Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong-Lin Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qin Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong-Ze Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qi-Ming Wang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Liu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Wang QM, Jiang D, Zeng HZ, Mou Y, Yi H, Liu W, Zeng QS, Wu CC, Tang CW, Hu B. A case of recurrent intestinal ganglioneuromatous polyposis accompanied with mesenteric schwannoma. Dig Dis Sci 2014; 59:3126-8. [PMID: 24927799 DOI: 10.1007/s10620-014-3232-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 05/26/2014] [Indexed: 02/07/2023]
Affiliation(s)
- Qi-Ming Wang
- Department of Gastroenterology, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu, 610041, People's Republic of China
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Yang L, Guo GQ, Chen LY, Huang CL, Ge T, Chen D, Liaw PK, Saksl K, Ren Y, Zeng QS, LaQua B, Chen FG, Jiang JZ. Atomic-scale mechanisms of the glass-forming ability in metallic glasses. Phys Rev Lett 2012; 109:105502. [PMID: 23005298 DOI: 10.1103/physrevlett.109.105502] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 07/07/2012] [Indexed: 06/01/2023]
Abstract
The issue, composition dependence of glass-forming ability (GFA) in metallic glasses (MG), has been investigated by systematic experimental measurements coupled with theoretical calculations in Cu-Zr and Ni-Nb alloy systems. It is found that the atomic-level packing efficiency strongly relates to their GFA. The best GFA is located at the largest difference in the packing efficiency of the solute-centered clusters between the glassy and crystal alloys in both MG systems. This work provides an understanding of GFA from atomic level and will shed light on the development of new MGs with larger critical sizes.
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Affiliation(s)
- L Yang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Peoples Republic of China.
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Abstract
OBJECTIVE Thoracic ganglioneuroma is sporadic and rarely reported. Pre-operative misdiagnosis often occurs in clinical practice. To improve diagnostic accuracy and facilitate differential diagnosis, we summarised the CT and MRI findings of thoracic ganglioneuroma. METHODS 22 cases of thoracic ganglioneuroma confirmed by surgery and pathology were retrospectively analysed in terms of CT (16 cases) and MRI data (6 cases). RESULTS Of 22 lesions, 19 occurred in the posterior mediastinum, 2 in the lateral pleura and 1 in the right chest. The CT value of the plain scans ranged from 20 to 40 HU (mean 29.1 HU) in 16 cases. Punctate calcification was noted in four cases. Patchy fat density shadow was found in one case. Arterial-phase CT found nearly no enhancement (6 cases) or slight enhancement (10 cases) with a CT value of 0-12 HU (mean 5.8 HU). In the delayed phase, enhancement was strengthened progressively, and CT value of 10-20 HU (mean 13.6 HU) was achieved after 120 s. T(1) weighted images showed homogeneous hypointense signals in five cases and hypointense signals mixed with patchy hyperintense signal shadow in one case. T(2) weighted images demonstrated heterogeneous hyperintense signals in all six cases, of which the whorled appearance was noted in one case. Gadolinium-diethylenetriaminepentaacetic acid (Gd-DTPA)-enhanced MRI found mildly heterogeneous enhancement in the arterial phase, and progressive mild enhancement in the delayed phase. CONCLUSION Thoracic ganglioneuroma shows hypodensity in plain CT. On CT and MRI, non-enhancement or slight enhancement in artery phase and progressive mild enhancement in delay phase are characteristic manifestations of ganglioneuroma in the thorax.
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Affiliation(s)
- Y B Guan
- Southern Medical University, Guangzhou, China
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Zeng QS, Fang YZ, Lou HB, Gong Y, Wang XD, Yang K, Li AG, Yan S, Lathe C, Wu FM, Yu XH, Jiang JZ. Low-density to high-density transition in Ce75Al23Si2 metallic glass. J Phys Condens Matter 2010; 22:375404. [PMID: 21403196 DOI: 10.1088/0953-8984/22/37/375404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Using in situ high-pressure x-ray diffraction (XRD), we observed a pressure-induced polyamorphic transition from the low-density amorphous (LDA) state to the high-density amorphous (HDA) state in Ce(75)Al(23)Si(2) metallic glass at about 2 GPa and 300 K. The thermal stabilities of both LDA and HDA metallic glasses were further investigated using in situ high-temperature and high-pressure XRD, which revealed different pressure dependences of the onset crystallization temperature (T(x)) between them with a turning point at about 2 GPa. Compared with Ce(75)Al(25) metallic glass, minor Si doping shifts the onset polyamorphic transition pressure from 1.5 to 2 GPa and obviously stabilizes both LDA and HDA metallic glasses with higher T(x) and changes their slopes dT(x)/dP. The results obtained in this work reveal another polyamorphous metallic glass system by minor alloying (e.g. Si), which could modify the transition pressure and also properties of LDA and HDA metallic glasses. The minor alloying effect reported here is valuable for the development of more polyamorphous metallic glasses, even multicomponent bulk metallic glasses with modified properties, which will trigger more investigations in this field and improve our understanding of polyamorphism and metallic glasses.
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Affiliation(s)
- Q S Zeng
- International Center for New-Structured Materials, Zhejiang University, Hangzhou, People's Republic of China.
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Cai C, Li DR, Zeng QS, Zhong SQ, Zhong NS. Prolonged fever, dyspnoea and diffuse pleural thickening in a 20-year-old man. Case Reports 2009; 2009:bcr12.2008.1337. [DOI: 10.1136/bcr.12.2008.1337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Cai C, Li DR, Zeng QS, Zhong SQ, Zhong NS. Prolonged fever, dyspnoea and diffuse pleural thickening in a 20-year-old man. Pleuropulmonary sarcoidosis. Thorax 2007; 62:622, 637. [PMID: 17600293 PMCID: PMC2117250 DOI: 10.1136/thx.2007.081232] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- C Cai
- Department of Pulmonology, General Hospital of Guangzhou Military Command, No 111 Liuhua Rd, Guangzhou, China 510010.
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Abstract
Atomic structures of amorphous Al(89)La(6)Ni(5), prepared by single-roller melt spinning, and pre-annealed at 493 and 588 K for 1 h, were characterized by differential scanning calorimetry, x-ray diffraction with a large wavevector transfer value, La L(3)-edge and Ni K-edge x-ray absorption fine structure and the reverse Monte Carlo technique. In the as-prepared amorphous alloy, our study reveals that the Ni-Al distance is 2.38 ± 0.02 Å coupled with a coordination number as low as 6.2. The Al-Al distance was found to be ∼4.5% shorter than the nominal atomic diameter of aluminium and the coordination number to be ∼39% less than expected from the dense random packing model. Crystallization of the Al(89)La(6)Ni(5) glassy alloy at high temperatures can be described as follows: [amorphous alloy] [Formula: see text] [fcc-Al] + [bcc-(AlLa)] + residual amorphous [Formula: see text] [fcc-Al] + [o-Al(3)Ni ] + [o-La(3)Al(11) ].
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Affiliation(s)
- Karel Saksl
- HASYLAB am Deutschen Elektronen Synchrotron, DESY, Notkestrasse 85, D-22603 Hamburg, Germany
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Lai LY, Gong GZ, Zeng QS. [Primary study of HCV replication in HepG2 cells inoculated by anti-HCV positive and HCVRNA RT-PCR positive serum]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:548-52. [PMID: 12516401] [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: 02/28/2023]
Abstract
OBJECTIVE To study HCV replication in HepG2 cell line and to establish a stable HepG2 cell line infected with HCV. METHODS Continuous inoculation of anti-HVC positive and HCVRNA RT-PCR positive sera was used to infect HepG2 cells. The plus and minus strains of HCVRNA were detected by reverse transcription polymerase chain reaction in the HepG2 cells. Virus particles were observed in postinoculated HepG2 cells by transmission electron microscope. Immunohistochemical staining was used respectively to detect HCV antigen, HCVNS5 and HVC capsid in postinoculated HepG2 cells. RESULTS HCV RNAs (both plus and minus strains) were found from the first passage to the third passage of postinoculation HepG2 cells, and HCV viruslike particles were detected in the third passage of the infected HepG2 cells, those particles mostly occurred within cytoplasm, their diameters were between 30-60 nm, and gathering silver particles were found in immunogold silver staining of HCV NS5/capsid protein in infected HepG2 cells. Gathering gold particles were found mostly within vesicles in cytoplasm by immuno gold electron microscopy. CONCLUSION HepG2 cell line infected by HCV is established by continuous inoculation of anti-HCV positive and HCVRNA positive sera. HCV can replicate and produce virus-like particles in HepG2 cells, which may occur in the serial passages of post-infected HepG2 cells.
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Affiliation(s)
- L Y Lai
- Department of Infectious Disease, Second Affiliated Hospital, Hunan Medical University, Changsha 410011
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Abstract
The survival capacity of Helicobacter pylori in artificially contaminated milk and tap water was investigated in the study. Helicobacter pylori could survive for up to 10 days in milk at 4 degrees C storage but only 4 days in tap water with a steady decrease of colony forming units. However, electron microscopy clearly showed that the non-culturable coccoid form was present in tap water which had been kept at 4 degrees C for 7 days. It is concluded that H. pylori may survive in tap water as well as in milk, with the implication that they may, thereby, act as a vehicle of transmission.
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Affiliation(s)
- X G Fan
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha, PR China.
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Abstract
To determine the extent of nuclear DNA abnormalities and their relationship with prognosis of stage II malignant melanoma, metastatic melanomas in lymphadenectomy specimens of 22 patients were studied by a computerized digital imaging system. The DNA ploidy pattern was aneuploid in 86% of the cases and tetraploid in the remaining 14%. In metastatic melanomas, there was a single clone in one third of patients and multiple clones in the remaining two thirds. Poor survival rate was associated with multiple clones and greater than 30% of mean coefficient of variation of DNA content. With tumor progression stem-cell lines often became heterogeneous with the development of multiple clones and widespread DNA values. These abnormalities, determined by nuclear DNA ploidy analysis, provide useful prognostic information.
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Affiliation(s)
- Q S Zeng
- Department of Pathology, University of California-Los Angeles School of Medicine
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Abstract
Both animal tumors and human nasopharyngeal carcinoma were submitted to a photoradiation therapy (PRT) trial in order to determine the efficacy and side effects of PRT, as well as to elucidate its mechanism of cytotoxicity. In animal tumors, the inhibition rate was 70%, and of 20 patients, eight achieved complete remission, and ten, significant remission, with an overall response rate of 90%. The blood picture and the values of serum IgG, IgM, IgA, and C3 all remained stable post-PRT. Only three patients developed mild generalized skin photosensitive reactions, and these did not affect subsequent treatment. There was no immunosuppressive effect as evidenced by a tritium-labeled thymidine-incorporated lymphocytoblast transformation assay performed both before and after PRT. Ultrastructural studies at different time intervals after PRT highly suggested that the mitochondria and rough endoplasmic reticulum were among the first organelles to be damaged.
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Affiliation(s)
- S P Zhao
- Department of Otolaryngology, First Affiliated Hospital, Changsha, People's Republic of China
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Zhao SP, Tao ZD, Xiao JY, Peng YY, Yang YH, Zeng QS, Liu ZW. Clinical use of hematoporphyrin derivative and photoradiation therapy in nasopharyngeal carcinoma. Chin Med J (Engl) 1988; 101:86-91. [PMID: 2970371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Liang YR, Guo YX, Yi XY, Zeng XF, Peng LX, Zeng QS. Schistosoma japonicum: a comparison of the development of the parasite and associated pathological changes in mice and jirds (Meriones unguiculatus). Int J Parasitol 1983; 13:531-8. [PMID: 6654579 DOI: 10.1016/s0020-7519(83)80024-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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