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Wang ZD, Ling SB, Li SX, Li LH, Liu ZC, Li DY, Li L, Yang Y, Liu SY, Dang XW. [Analysis of risk factors of short-term prognosis in patients with severe Budd-Chiari syndrome]. Zhonghua Wai Ke Za Zhi 2024; 62:606-612. [PMID: 38682633 DOI: 10.3760/cma.j.cn112139-20231021-00185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Objective: To explore the risk factors of short-term prognosis of severe BCS patients,established and verified the nomogram prediction model for these BCS patients and evaluated its clinical application value. Methods: This study is a retrospective cohort study. The clinical data of 171 patients with severe BCS diagnosed were retrospectively analyzed in the Department of Hepatopancreatobiliary Surgery First Affiliated Hospital of Zhengzhou University from January 2018 to December 2023. There were 105 males and 66 females, aged (52.1±12.8) years (range: 18 to 79 years). The patients were divided into two groups based on whether they died within 28 days: the death group (n=38) and the survival group (n=133). The risk factors for short-term death of patients were analyzed,and independent risk factors were screened by univariate and multivariate analysis. Furthermore,these factors were used to establish the nomogram prediction model. The area under the curve(AUC),the Bootstrap Resampling,the Hosmer-Lemeshow test and the Decision Curve Analysis(DCA) were used to verify the model's differentiation,internal verification,calibration degree and clinical effectiveness,respectively. Results: Univariate and multivariate Logistics regression analysis showed that the history of hepatic encephalopathy,white blood cell,glomerular filtration rate and prothrombin time are independent risk factors (P<0.05). The above factors were used to successfully establish the prediction model with 0.908 of AUC and 0.895 of the internal verification of AUC,indicating that the predictive model was valuable. The 0.663 P-values in the Hosmer-Lemeshow test indicated the high calibration degree of the model. The clinical effectiveness of the model was proved by the 18% clinical benefit population using the DCA curve with the 17% probability threshold. Conclusions: The independent risk factors are the history of hepatic encephalopathy,white blood cell,glomerular filtration rate and prothrombin time. An adequate basis was acquired by establishing a nomogram prediction model of the short-term prognosis of severe BCS,which was helpful for early clinical screening and identification of high-risk patients with severe BCS who could die in the short term and timely providing timely intervention measures for improving the prognosis.
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Affiliation(s)
- Z D Wang
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - S B Ling
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - S X Li
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - L H Li
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - Z C Liu
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - D Y Li
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - L Li
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - Y Yang
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - S Y Liu
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
| | - X W Dang
- Department of Hepatopancreatobiliary Surgery,the First Affiliated Hospital of Zhengzhou University,Key Laboratory of Precision Diagnosis and Treatment in General Surgical (Hepatobiliary and Pancreatic) Diseases of Health Commission of Henan Province,Henan Province Engineering Research Center of Minimally Invasive Diagnosis and Treatment of Hepatobiliary and Pancreatic Diseases,Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province,Zhengzhou 450052,China
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Ma N, Wang ZD, Sun YQ, Yan CH, Wang FR, Mo XD, Lyu M, Zhao XY, Zhao XS, Han W, Chen H, Chen YY, Wang Y, Xu LP, Cheng YF, Zhang XH, Liu KY, Huang XJ, Chang YJ. [Effect of sirolimus combined with anti-CD20 monoclonal antibody desensitization on the prognosis of patients underwent haploidentical stem cell transplantation]. Zhonghua Yi Xue Za Zhi 2024; 104:843-849. [PMID: 38462360 DOI: 10.3760/cma.j.cn112137-20231130-01248] [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: 03/12/2024]
Abstract
Objective: To investigate the effects of sirolimus combined with anti-CD20 monoclonal antibody desensitization on the prognosis of patients with haploidentical stem cell transplantation (haplo-SCT). Methods: Fifteen consecutive patients who received haplo-SCT and pre-transplant donor specific anti-human leukocyte antigen (HLA) antibody (DSA) positive [mean fluorescence intensity (MFI)≥2 000] in the Institute of Hematological Diseases from November 2021 to March 2023 were retrospectively recruited into the desensitized group. There were 4 males and 11 females, with a median age [M(Q1, Q3)] of 48 (37, 59) years. All patients were desensitized with sirolimus combined with anti-CD20 monoclonal antibody. The non-desensitized group included 29 patients with haplo-SCT who had not received desensitization treatment from August 2012 to June 2016. There were 12 males and 17 females with a median age of 42 (26, 50) years. Up to October 1, 2023, the median follow-up time was 13 (9, 18) months in the study group and 23 (14, 29) months in the control group. The changes of MFI before and after desensitization treatment and the prognosis of patients in the desensitized group were compared, including the incidence of primary implantation failure (pGF), neutrophil implantation time, platelet implantation time, grade Ⅱ-Ⅳ acute graft-versus-host disease (GVHD) and chronic GVHD incidence, non-recurrence related mortality, event-free survival rate, disease-free survival rate and overall survival rate. The survival curve was drawn by Kaplan-Meier method, and the survival rate between groups was compared with Log-rank test. Results: After desensitization treatment, the level of DSA MFI in the desensitized group decreased from 8 879 (7 544, 11 495) to 3 781 (1 638, 4 165) after desensitization treatment (P<0.01). All of the patients achieved hematopoietic recovery, and the median time for neutrophil and platelet engraftment were 14 (11, 15) and 20 (18, 25) days, respectively. The incidence of pGF in the desensitized group was 0, which was lower than that in the non-desensitized group (34.5%, 10/29) (P=0.011). The expected 1-year disease-free survival rate and overall survival rate in the desensitized group were 100% (15/15) and 100% (15/15) respectively, while those in the non-desensitized group were 75.9% (22/29) and 75.9% (22/29) respectively, the difference was not statistically significant (both P>0.05). The one-year event-free survival rate in the desensitized group was expected to be 100% (15/15), which was higher than that in the non-desensitized group (51.3%, 15/29) (P=0.002). Conclusion: Sirolimus combined with anti-CD20 monoclonal antibody desensitization therapy can reduce the DSA level of haplo-SCT recipients, promote hematopoietic engraftment after transplantation, and avoid the occurrence of pGF after transplantation.
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Affiliation(s)
- N Ma
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - Z D Wang
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - Y Q Sun
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - C H Yan
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - F R Wang
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - X D Mo
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - M Lyu
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - X Y Zhao
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - X S Zhao
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - W Han
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - H Chen
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - Y Y Chen
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - Y Wang
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - L P Xu
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - Y F Cheng
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - X H Zhang
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - K Y Liu
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - X J Huang
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - Y J Chang
- Department of Hematology, Peking University People's Hospital, Institute of Hematological Diseases, National Clinical Medical Research Center for Hematological Diseases, Beijing key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
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Shen C, Wang ZD, Qian WJ, Wu CF, Qian SR, Tang T. Bibliometric Analysis of Brain Stimulation Technologies in Sleep Disorders. Med Sci Monit 2024; 30:e942687. [PMID: 38439525 PMCID: PMC10924428 DOI: 10.12659/msm.942687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/17/2023] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Sleep disorders are a common disease faced by people today and can lead to fatigue, lack of concentration, impaired memory, and even death. In recent years, the development of brain stimulation techniques has provided a new perspective for the treatment of sleep disorders. However, there is a lack of bibliometric analyses related to sleep disorders and brain stimulation techniques. Therefore, this study analyzed the application status and trend of brain stimulation technology in sleep disorder research. MATERIAL AND METHODS Articles and reviews published between 1999 and 2023 were retrieved from the Web of Science. CiteSpace was used to visually analyze the publications, countries, institutions, journals, authors, references, and keywords. RESULTS A total of 459 publications were obtained. The number of studies was shown to be on a general upward trend. The country with the largest number of publications was the United States; UDICE-French Research Universities had the highest number of publications; Neurology had the highest citation frequency; 90% of the top 10 references cited were from Journal Citation Reports Q1; Brigo was the author with the highest number of publications; and the most frequent keywords were "transcranial magnetic stimulation", "deep brain stimulation", and "Parkinson disease". CONCLUSIONS Our study used CiteSpace software to analyze 459 studies published since 1999 on brain stimulation techniques for the treatment of sleep disorders, revealing research trends and the current state of the field. Our results will help researchers to understand the existing research quickly and provide direction for future research.
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Hu YD, Wang ZD, Yue YF, Li D, Zhen SQ, Ding JQ, Meng W, Zhu HL, Xie M, Liu L. Inhibition of HDAC6 alleviates cancer‑induced bone pain by reducing the activation of NLRP3 inflammasome. Int J Mol Med 2024; 53:4. [PMID: 37997785 PMCID: PMC10688768 DOI: 10.3892/ijmm.2023.5328] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/30/2023] [Indexed: 11/25/2023] Open
Abstract
Cancer‑induced bone pain (CIBP) is characterized as moderate to severe pain that negatively affects the daily functional status and quality of life of patients. When cancer cells metastasize and grow in bone marrow, this activates neuroinflammation in the spinal cord, which plays a vital role in the generation and persistence of chronic pain. In the present study, a model of CIBP was constructed by inoculating of MRMT‑1 rat breast carcinoma cells into the medullary cavity of the tibia in male Sprague‑Dawley rats. Following two weeks of surgery, CIBP rats exhibited damaged bone structure, increased pain sensitivity and impaired motor coordination. Neuroinflammation was activated in the spinal cords of CIBP rats, presenting with extensive leukocyte filtration, upregulated cytokine levels and activated astrocytes. Histone deacetylase 6 (HDAC6) works as a therapeutic target for chronic pain. The intrathecal injection of the HDAC6 inhibitor tubastatin A (TSA) in the lumbar spinal cord resulted in decreased spinal inflammatory cytokine production, suppressed spinal astrocytes activation and reduced NOD‑like receptor pyrin domain containing 3 (NLRP3) inflammasome activity. Consequently, this effect alleviated spontaneous pain and mechanical hyperalgesia and recovered motor coordination in CIBP rats. It was demonstrated by immunoprecipitation assay that TSA treatment reduced the interaction between HDAC6 and NLRP3. Cell research on C6 rat glioma cells served to verify that TSA treatment reduced HDAC6 and NLRP3 expression. In summary, the findings of present study indicated that TSA treatment alleviated cancer‑induced bone pain through the inhibition of HDAC6/NLRP3 inflammasome signaling in the spinal cord.
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Affiliation(s)
- Yin-Di Hu
- School of Pharmacy, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Zhao-Di Wang
- School of Pharmacy, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Yuan-Fen Yue
- Xianning Central Hospital, First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei 437199, P.R. China
| | - Dai Li
- Hubei Key Laboratory of Diabetes and Angiopathy, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Shu-Qing Zhen
- Matang Hospital of Traditional Chinese Medicine, Xianning, Hubei 437000, P.R. China
| | - Jie-Qiong Ding
- Hubei Key Laboratory of Diabetes and Angiopathy, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Wei Meng
- Hubei Key Laboratory of Diabetes and Angiopathy, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Hai-Li Zhu
- Hubei Key Laboratory of Diabetes and Angiopathy, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Min Xie
- Hubei Key Laboratory of Diabetes and Angiopathy, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Ling Liu
- Hubei Key Laboratory of Diabetes and Angiopathy, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
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Cheng XP, Yu WH, Liu X, Lin W, Wang ZD, Wang XC, Ni J, Cai NQ, Chen XY. Transcranial Alternating Current Stimulation in a Patient with Ataxia-Ocular Apraxia 2: a Case Report. Cerebellum 2023:10.1007/s12311-023-01637-y. [PMID: 37993636 DOI: 10.1007/s12311-023-01637-y] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/13/2023] [Indexed: 11/24/2023]
Abstract
Ataxia-ocular apraxia 2 (AOA2) is a rare neurodegenerative autosomal recessive disorder with no effective treatment. In this study, we present the case of a patient diagnosed with AOA2, who experienced walking instability and uncoordinated movement. The patient underwent transcranial alternating current stimulation (tACS) treatment for 4 weeks with follow-up after 1 month. The effectiveness of the treatment was evaluated using the International Cooperative Ataxia Rating Scale (ICARS), the Scale for the Assessment and Rating of Ataxia (SARA), the 9-Hole Peg Test (9HPT), and functional near-infrared spectroscopy (fNIRS). Following treatment, the patient's ataxia symptoms showed significant improvement and continued to be alleviated during the follow-up period, suggesting a lasting effect of tACS treatment. Our findings from this case study provide compelling evidence for the potential of tACS as a treatment option for AOA2.
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Affiliation(s)
- Xiao-Ping Cheng
- Department of Rehabilitation Medicine of First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
| | - Wen-Hui Yu
- The School of Health, Fujian Medical University, Fuzhou, 350122, China
| | - Xia Liu
- Department of Rehabilitation Medicine of First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
| | - Wei Lin
- Department of Neurology and Institute of Neurology of First Affiliated Hospital, Institute of Neuroscience, and Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, 350005, China
| | - Zhao-Di Wang
- Department of Rehabilitation Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215008, China
| | - Xi-Chen Wang
- Department of Rehabilitation Medicine of First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
| | - Jun Ni
- Department of Rehabilitation Medicine of First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
| | - Nai-Qing Cai
- Department of Neurology and Institute of Neurology of First Affiliated Hospital, Institute of Neuroscience, and Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, 350005, China.
| | - Xin-Yuan Chen
- Department of Rehabilitation Medicine of First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
- Department of Rehabilitation Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China.
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Lin F, Sun H, Chen Y, Zhang YY, Liu J, He Y, Zheng FM, Xu ZL, Wang FR, Kong J, Wang ZD, Wan YY, Mo XD, Wang Y, Cheng YF, Zhang XH, Huang XJ, Xu LP. [Impact of SARS-CoV-2 infection on graft composition and early transplant outcomes following allogeneic hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:890-899. [PMID: 38185517 PMCID: PMC10753252 DOI: 10.3760/cma.j.issn.0253-2727.2023.11.002] [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: 03/24/2023] [Indexed: 01/09/2024]
Abstract
Objective: To assess the feasibility of using donors with novel coronavirus disease 2019 (COVID-19) for allogeneic hematopoietic stem cell transplantation (allo-HSCT) when there are no other available donors and allo-HSCT cannot be delayed or discontinued. Methods: Seventy-one patients with malignant hematological diseases undergoing allo-HSCT between December 8, 2022, and January 10, 2023, were included. Of these, 16 received grafts from donors with mild COVID-19 (D-COVID(+) group) and 55 received grafts from donors without COVID-19 (D-COVID(-) group). The graft compositions were compared between the two groups. Engraftment, acute graft-versus-host disease (aGVHD), overall survival (OS), and relapse were also evaluated. Results: There were no serious side effects or adverse events in the D-COVID(+) group. The mononuclear cell dose and CD34(+) cell dose were comparable between the two groups, and no additional apheresis was required. There were no significant differences in the lymphocyte, monocyte, and T-cell subset doses between the two groups. The median natural killer cell dose in the D-COVID(+) group was significantly higher than that in the D-COVID(-) group (0.69×10(8)/kg vs. 0.53×10(8)/kg, P=0.031). The median follow-up time was 72 (33-104) days. All patients achieved primary engraftment. The 60-day platelet engraftment rates in the D-COVID(+) and D-COVID(-) groups were 100% and (96.4±0.2) %, respectively (P=0.568). There were no significant differences in neutrophil (P=0.309) and platelet (P=0.544) engraftment times. The cumulative incidence of grade 2-4 aGVHD was (37.5±1.6) % vs. (16.4±0.3) % (P=0.062), and of grade 3-4 aGVHD was 25.0% ±1.3% vs. 9.1% ±0.2% (P=0.095) in the D-COVID(+) and D-COVID(-) groups, respectively. The probabilities of 60-day OS were 100% and 98.1% ±1.8% (P=0.522) in the D-COVID(+) and D-COVID(-) groups, respectively. There was no relapse of primary disease during the study period. Conclusion: When allo-HSCT cannot be delayed or discontinued and no other donor is available, a donor with mild COVID-19 should be considered if tolerable. Larger sample sizes and longer follow-up periods are required to validate these results.
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Affiliation(s)
- F Lin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - H Sun
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Y Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - J Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y He
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - F M Zheng
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Z L Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - F R Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - J Kong
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Z D Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Y Wan
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - X D Mo
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y F Cheng
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - X H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - X J Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - L P Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
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7
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Rui WB, Zhao YX, Wang ZD. Making Topologically Trivial Non-Hermitian Systems Nontrivial via Gauge Fields. Phys Rev Lett 2023; 131:176402. [PMID: 37955479 DOI: 10.1103/physrevlett.131.176402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/15/2023] [Accepted: 09/22/2023] [Indexed: 11/14/2023]
Abstract
Non-Hermiticity significantly enriches the concepts of symmetry and topology in physics. Particularly, non-Hermiticity gives rise to the ramified symmetries, where the non-Hermitian Hamiltonian H is transformed to H^{†}. For time-reversal (T) and sublattice symmetries, there are six ramified symmetry classes leading to novel topological classifications with various non-Hermitian skin effects. As artificial crystals are the main experimental platforms for non-Hermitian physics, there exists the symmetry barrier for realizing topological physics in the six ramified symmetry classes: while artificial crystals are in spinless classes with T^{2}=1, nontrivial classifications dominantly appear in spinful classes with T^{2}=-1. Here, we present a general mechanism to cross the symmetry barrier. With an internal parity symmetry P, the square of the combination T[over ˜]=PT can be modified by appropriate gauge fluxes. Using the general mechanism, we systematically construct spinless models for all non-Hermitian spinful topological phases in one and two dimensions, which are experimentally realizable. Our Letter suggests that gauge structures may significantly enrich non-Hermitian physics at the fundamental level.
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Affiliation(s)
- W B Rui
- Department of Physics and HK Institute of Quantum Science & Technology, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Y X Zhao
- Department of Physics and HK Institute of Quantum Science & Technology, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Z D Wang
- Department of Physics and HK Institute of Quantum Science & Technology, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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8
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Wang ZD, Tang T, He JP, Shen C, Sun QK, Chen CJ, Qian WJ, Chen XY. Visualization Analysis of Research Trends and Hotspots in Inspiratory Muscle Training. Med Sci Monit 2023; 29:e941486. [PMID: 37661601 PMCID: PMC10487190 DOI: 10.12659/msm.941486] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/18/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND Inspiratory muscle training (IMT) aims to train inspiratory muscles based mainly on the diaphragm by applying a load resistance during the inspiratory process. Many papers related to IMT have been published in various journals; however, no articles objectively and directly present the development trends and research hotspots of IMT. Therefore, this study used CiteSpace to visually analyze recent IMT-related publications to provide valuable information for future IMT-related studies. MATERIAL AND METHODS CiteSpace was applied to analyze the IMT-related publications by countries, institutions, journals, authors, references, and keywords. RESULTS We included 504 papers. The number of IMT-related publications trended upward between 2009 and 2022. Leuven had the highest number of publications by an institution. The American Journal of Respiratory and Critical Care Medicine was the most frequently co-cited journal. Half of the top 10 references cited were from Journal Citation Reports (JCR) Q1 and half were about the application of IMT in chronic obstructive pulmonary disorder. Gosselink was the author with the highest number of publications and Aldrich was the author with the highest co-citation frequency. The preponderance of studies on the surgical population and postoperative pulmonary complications reflects potential application of IMT in enhanced recovery after surgery. CONCLUSIONS This study provides scholars with important information related to IMT research. It analyzes IMT research trends and status, which can help researchers identify primary topics in the field and find ways to explore new research directions to promote the application of IMT in clinical practice and the cooperation of IMT-related disciplines.
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Affiliation(s)
- Zhao-Di Wang
- Department of Rehabilitation Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, PR China
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Tong Tang
- Department of Rehabilitation Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, PR China
| | - Jin-Peng He
- Department of Rehabilitation Medicine, The First People’s Hospital of Yancheng, Yancheng, Jiangsu, PR China
- Department of Rehabilitation Medicine, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu, PR China
| | - Chao Shen
- Department of Rehabilitation Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, PR China
| | - Qi-Kui Sun
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Chuan-Juan Chen
- Department of Nursing, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Wen-Jun Qian
- Department of Rehabilitation Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, PR China
| | - Xin-Yuan Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
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9
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Hu YD, Yue YF, Chen T, Wang ZD, Ding JQ, Xie M, Li D, Zhu HL, Cheng ML. Alleviating effect of lycorine on CFA‑induced arthritic pain via inhibition of spinal inflammation and oxidative stress. Exp Ther Med 2023; 25:241. [PMID: 37153898 PMCID: PMC10160920 DOI: 10.3892/etm.2023.11940] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/16/2023] [Indexed: 05/10/2023] Open
Abstract
Chronic pain is the primary symptom of osteoarthritis affecting a patient's quality of life. Neuroinflammation and oxidative stress in the spinal cord contribute to arthritic pain and represent ideal targets for pain management. In the present study, a model of arthritis was established by intra-articular injection of complete Freund's adjuvant (CFA) into the left knee joint in mice. After CFA inducement, knee width and pain hypersensitivity in the mice were increased, motor disability was impaired, spinal inflammatory reaction was induced, spinal astrocytes were activated, antioxidant responses were decreased, and glycogen synthase kinase 3β (GSK-3β) activity was inhibited. To explore the potential therapeutic options for arthritic pain, lycorine was intraperitoneally injected for 3 days in the CFA mice. Lycorine treatment significantly reduced mechanical pain sensitivity, suppressed spontaneous pain, and recovered motor coordination in the CFA-induced mice. Additionally, in the spinal cord, lycorine treatment decreased the inflammatory score, reduced NOD-like receptor protein 3 inflammasome (NLRP3) activity and IL-1β expression, suppressed astrocytic activation, downregulated NF-κB levels, increased nuclear factor erythroid 2-related factor 2 expression and superoxide dismutase activity. Furthermore, lycorine was shown to bind to GSK-3β through three electrovalent bonds, to inhibit GSK-3β activity. In summary, lycorine treatment inhibited GSK-3β activity, suppressed NLRP3 inflammasome activation, increased the antioxidant response, reduced spinal inflammation, and relieved arthritic pain.
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Affiliation(s)
- Yin-Di Hu
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Yuan-Fen Yue
- Department of Pharmacy, Xianning Central Hospital, First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Tao Chen
- Department of Pharmacy, Xianning Central Hospital, First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Zhao-Di Wang
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Jie-Qing Ding
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Min Xie
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Dai Li
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Hai-Li Zhu
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
- Correspondence to: Dr Hai-Li Zhu or Dr Meng-Lin Cheng, School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, Hubei 437100, P.R. China
| | - Meng-Lin Cheng
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
- Correspondence to: Dr Hai-Li Zhu or Dr Meng-Lin Cheng, School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, Hubei 437100, P.R. China
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10
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Gao Q, Lin YP, Li BS, Wang GQ, Dong LQ, Shen BY, Lou WH, Wu WC, Ge D, Zhu QL, Xu Y, Xu JM, Chang WJ, Lan P, Zhou PH, He MJ, Qiao GB, Chuai SK, Zang RY, Shi TY, Tan LJ, Yin J, Zeng Q, Su XF, Wang ZD, Zhao XQ, Nian WQ, Zhang S, Zhou J, Cai SL, Zhang ZH, Fan J. Unintrusive multi-cancer detection by circulating cell-free DNA methylation sequencing (THUNDER): development and independent validation studies. Ann Oncol 2023; 34:486-495. [PMID: 36849097 DOI: 10.1016/j.annonc.2023.02.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [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: 05/30/2022] [Revised: 02/10/2023] [Accepted: 02/20/2023] [Indexed: 02/27/2023] Open
Abstract
BACKGROUND Early detection of cancer offers the opportunity to identify candidates when curative treatments are achievable. The THUNDER study (THe UNintrusive Detection of EaRly-stage cancers, NCT04820868) aimed to evaluate the performance of ELSA-seq, a previously described cfDNA methylation-based technology, in the early detection and localization of six types of cancers in the colorectum, esophagus, liver, lung, ovary and pancreas. PATIENTS AND METHODS A customized panel of 161,984 CpG sites was constructed and validated by public and in-house (cancer: n=249; non-cancer: n=288) methylome data, respectively. The cfDNA samples from 1,693 participants (cancer: n=735; non-cancer: n=958) were retrospectively collected to train and validate two multi-cancer detection blood test models (MCDBT-1/2) for different clinical scenarios. The models were validated on a prospective and independent cohort of age-matched 1,010 participants (cancer: n=505; non-cancer: n=505). Simulation using the cancer incidence in China was applied to infer stage-shift and survival benefits to demonstrate the potential utility of the models in the real world. RESULTS MCDBT-1 yielded a sensitivity of 69.1% (64.8%‒73.3%), a specificity of 98.9% (97.6%‒99.7%) and tissue origin accuracy of 83.2% (78.7%‒87.1%) in the independent validation set. For early stage (I‒III) patients, the sensitivity of MCDBT-1 was 59.8% (54.4%‒65.0%). In the real-world simulation, MCDBT-1 achieved the sensitivity of 70.6% in detecting the six cancers, thus decreasing late-stage incidence by 38.7%‒46.4%, and increasing 5-year survival rate by 33.1%‒40.4%, respectively. In parallel, MCDBT-2 was generated at a slightly low specificity of 95.1% (92.8%-96.9%) but a higher sensitivity of 75.1% (71.9%-79.8%) than MCDBT-1 for populations at relatively high risk of cancers, and also had ideal performance. CONCLUSION In this large-scale clinical validation study, MCDBT-1/2 models showed a high sensitivity, specificity, and accuracy of predicted origin in detecting six types of cancers.
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Affiliation(s)
- Q Gao
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai 200032, China; Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Y P Lin
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai 200032, China; Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - B S Li
- Burning Rock Biotech, Guangzhou 510300, China
| | - G Q Wang
- Burning Rock Biotech, Guangzhou 510300, China
| | - L Q Dong
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai 200032, China; Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - B Y Shen
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, China
| | - W H Lou
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - W C Wu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - D Ge
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Q L Zhu
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Y Xu
- Burning Rock Biotech, Guangzhou 510300, China
| | - J M Xu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - W J Chang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - P Lan
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China
| | - P H Zhou
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - M J He
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - G B Qiao
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - S K Chuai
- Burning Rock Biotech, Guangzhou 510300, China
| | - R Y Zang
- Ovarian Cancer Program, Department of Gynaecologic Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - T Y Shi
- Ovarian Cancer Program, Department of Gynaecologic Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - L J Tan
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - J Yin
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Q Zeng
- Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing 100853, China
| | - X F Su
- Department of Cardiothoracic Surgery, Linfen People's Hospital, Shanxi 041000, China
| | - Z D Wang
- Clinical Research Center, Linfen People's Hospital, Shanxi 041000, China
| | - X Q Zhao
- Department of Pathology, Linfen People's Hospital, Shanxi 041000, China
| | - W Q Nian
- Phase I ward, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - S Zhang
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai 200032, China
| | - J Zhou
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai 200032, China; Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - S L Cai
- Burning Rock Biotech, Guangzhou 510300, China
| | - Z H Zhang
- Burning Rock Biotech, Guangzhou 510300, China
| | - J Fan
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai 200032, China; Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.
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11
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Zhu YQ, Zheng Z, Palumbo G, Wang ZD. Topological Electromagnetic Effects and Higher Second Chern Numbers in Four-Dimensional Gapped Phases. Phys Rev Lett 2022; 129:196602. [PMID: 36399761 DOI: 10.1103/physrevlett.129.196602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 09/29/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Higher-dimensional topological phases play a key role in understanding the lower-dimensional topological phases and the related topological responses through a dimensional reduction procedure. In this work, we present a Dirac-type model of four-dimensional Z_{2} topological insulator (TI) protected by CP symmetry, whose 3D boundary supports an odd number of Dirac cones. A specific perturbation splits each bulk massive Dirac cone into two valleys separated in energy-momentum space with opposite second Chern numbers, in which the 3D boundary modes become a nodal sphere or a Weyl semimetallic phase. By introducing the electromagnetic (EM) and pseudo-EM fields, exotic topological responses of our 4D system are revealed, which are found to be described by the (4+1)D mixed Chern-Simons theories in the low-energy regime. Notably, several topological phase transitions occur from a CP-broken Z_{2} TI to a Z TI when the bulk gap closes by giving rise to exotic double-nodal-line or nodal-hyper-torus gapless phases. Finally, we propose to probe experimentally these topological effects in cold atoms.
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Affiliation(s)
- Yan-Qing Zhu
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Department of Physics, and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Zhen Zheng
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Giandomenico Palumbo
- School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland
| | - Z D Wang
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Department of Physics, and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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12
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Rui WB, Zheng Z, Wang C, Wang ZD. Non-Hermitian Spatial Symmetries and Their Stabilized Normal and Exceptional Topological Semimetals. Phys Rev Lett 2022; 128:226401. [PMID: 35714264 DOI: 10.1103/physrevlett.128.226401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/18/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
We study non-Hermitian spatial symmetries-a class of symmetries that have no counterparts in Hermitian systems-and study how normal and exceptional semimetals can be stabilized by these symmetries. Different from internal ones, spatial symmetries act nonlocally in momentum space and enforce global constraints on both band degeneracies and topological quantities at different locations. In deriving general constraints on band degeneracies and topological invariants, we demonstrate that non-Hermitian spatial symmetries are on an equal footing with, but are essentially different from Hermitian ones. First, we discover the nonlocal Hermitian conjugate pair of exceptional or normal band degeneracies that are enforced by non-Hermitian spatial symmetries. Remarkably, we find that these pairs lead to the symmetry-enforced violation of the Fermion doubling theorem in the long-time limit. Second, with the topological constraints, we unravel that a certain exceptional manifold is only compatible with and stabilized by non-Hermitian spatial symmetries but is intrinsically incompatible with Hermitian spatial symmetries. We illustrate these findings using two three-dimensional models of a non-Hermitian Weyl semimetal and an exceptional unconventional Weyl semimetal. Experimental cold-atom realizations of both models are also proposed.
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Affiliation(s)
- W B Rui
- Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Zhen Zheng
- Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chenjie Wang
- Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Z D Wang
- Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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13
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Zhang DB, Zhang GQ, Xue ZY, Zhu SL, Wang ZD. Continuous-Variable Assisted Thermal Quantum Simulation. Phys Rev Lett 2021; 127:020502. [PMID: 34296925 DOI: 10.1103/physrevlett.127.020502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 11/30/2020] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
Simulation of a quantum many-body system at finite temperatures is crucially important but quite challenging. Here we present an experimentally feasible quantum algorithm assisted with continuous variable for simulating quantum systems at finite temperatures. Our algorithm has a time complexity scaling polynomially with the inverse temperature and the desired accuracy. We demonstrate the quantum algorithm by simulating a finite temperature phase diagram of the quantum Ising and Kitaev models. It is found that the important crossover phase diagram of the Kitaev ring can be accurately simulated by a quantum computer with only a few qubits and thus the algorithm may be implementable on current quantum processors. We further propose a protocol with superconducting or trapped ion quantum computers.
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Affiliation(s)
- Dan-Bo Zhang
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Guo-Qing Zhang
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Zheng-Yuan Xue
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Shi-Liang Zhu
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Z D Wang
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Department of Physics, and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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14
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Wang ZD, Sun YQ, Yan CH, Wang FR, Mo XD, Lyu M, Zhao XS, Han W, Chen H, Chen YY, Wang Y, Xu LP, Zhang XH, Liu KY, Huang XJ, Chang YJ. [Negative effects of donor specific anti-HLA antibody on poor hematopoietic recovery in patients with hematological diseases receiving haploidentical stem cell transplantation and rituximab for desensitization]. Zhonghua Nei Ke Za Zhi 2021; 60:644-649. [PMID: 34619842 DOI: 10.3760/cma.j.cn112138-20200728-00713] [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 investigate the incidences and risk factors of poor hematopoietic reconstitution (PHR) in patients with hematological diseases who underwent haploidentical allograft and were treated with rituximab for desensitization. Methods: Eight-three donor specific anti-HLA antibody (DSA, 2000 ≤MFI<10 000) positive patients who underwent haploidentical allograft were prospectively enrolled. Rituximab (375 mg/m2) was used for desensitization day-3 of conditioning regimen. Incidence and factors associated with PHR, including primary poor graft function and prolonged thrombocytopenia, were investigated. Results: There were 22 males and 61 females with a median age of 39(range: 1-65) years. Kaplan-Meier analysis showed that the 100 day cumulative incidences of neutrophil and platelet engraftment were 93.0% and 90.7%, respectively. The incidences of PHR were 14.7%. The 3-year relapse rate, non-relapse mortality (NRM) rate, event-free survival (EFS), leukemia-free survival (DFS) and overall survival (OS) were 6.5%, 15.1%, 70.8%, 79.4% and 79.4%, respectively. Patients with DSA MFI<5 000 (group A, n=46) experienced lower PHR (4.4% vs. 27.5%, P=0.003), and higher 3-year EFS (79.5% vs. 59.8%, P=0.020) compared to those with DSA MFI≥5 000 (group B, n=37). Multivariate analysis showed that DSA MFI≥5 000 was correlated with PHR (HR=6.101, P=0.021). PHR was associated with higher NRM (HR=4.110, P=0.026), lower DFS (HR=3.656, P=0.019) and OS (HR=3.656, P=0.019). Conclusion: Our data suggest that high pre-transplant DSA level is a risk factor for PHR in patients with hematological diseases receiving haploidentical allograft and rituximab for desensitization.
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Affiliation(s)
- Z D Wang
- 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
| | - Y Q Sun
- 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
| | - C H Yan
- 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
| | - F R Wang
- 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
| | - X D Mo
- 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
| | - M Lyu
- 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
| | - X S Zhao
- 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
| | - W Han
- 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
| | - H Chen
- 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
| | - Y Y Chen
- 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
| | - Y Wang
- 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
| | - L P Xu
- 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
| | - X H 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
| | - K Y Liu
- 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
| | - X J Huang
- 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
| | - Y J Chang
- 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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Liu J, Fu Q, Wang Y, Wang FR, Han W, Ma YR, Yan CH, Han TT, Wang JZ, Wang ZD, Zhang XH, Xu LP, Liu KY, Huang XJ, Sun YQ. [The effect of donor cytomegalovirus serological status on the outcome of allogeneic stem cell transplantation]. Zhonghua Nei Ke Za Zhi 2021; 60:459-465. [PMID: 33906276 DOI: 10.3760/cma.j.cn112138-20200714-00668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Donor cytomegalovirus (CMV) serological negative status may have an adverse effect on the outcome of allogeneic hematopoietic stem cell transplantation (allo-HSCT), while there is inadequate data for Chinese people. This study is to explore the impact of donor CMV serological status on the outcome of CMV seropositive patients receiving allo-HSCT. Methods: Our study retrospectively analyzed 16 CMV seropositive patients with hematological malignancies receiving allogeneic grafts from CMV seronegative donors (antibody IgG negative) at Peking University People's Hospital from March 2013 to March 2020, which was defined as D-/R+ group. The other 64 CMV seropositive patients receiving grafts from CMV seropositive donors at the same period of time were selected as matched controls through a propensity score with 1∶4 depending on age, disease state and donor-recipient relationship (D+/R+ group). Results: Patients in D-/R+ group developed CMV DNAemia later than patients in the D+/R+ group (+37 days vs. +31 days after allo-HSCT, P=0.011), but the duration of CMV DNAemia in D-/R+ group was longer than that of D+/R+ group (99 days vs. 34 days, P=0.012). The rate of CMV reactivation 4 times or more in D-/R+ group was 4/16, significantly higher than that of D+/R+ group (4.7%, 3/64, P=0.01). The incidences of refractory CMV DNAemia (14/16 vs. 56.3%, P=0.021) and CMV disease (4/16 vs. 4.7%, P=0.01) in D-/R+ group were both higher than those in D+/R+ group. In addition, the application of CMV-CTL as the second-line antiviral treatment in D-/R+ group was more than that in D+/R+ group. Univariate analysis and multivariate analysis suggested that CMV serological negativity is an independent risk factor for refractory CMV DNAemia and the duration of CMV infection. The cumulative incidence of aGVHDⅡ-Ⅳ, cGVHD, 3-year probability of NRM, overall survival, and the cumulative incidence of relapse were all comparable in two groups. Conclusions: Although there is no significant effect on OS and NRM, the incidence of refractory CMV DNAemia, the frequency of virus reactivation, and the development of CMV disease in D-/R+ group are higher than those in controls. Therefore, CMV seropositive donors are preferred for CMV seropositive patients.
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Affiliation(s)
- J Liu
- Department of Hematology, 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
| | - Q Fu
- Department of Hematology, 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
| | - Y Wang
- Department of Hematology, 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
| | - F R Wang
- Department of Hematology, 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
| | - W Han
- Department of Hematology, 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
| | - Y R Ma
- Department of Hematology, 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
| | - C H Yan
- Department of Hematology, 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
| | - T T Han
- Department of Hematology, 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
| | - J Z Wang
- Department of Hematology, 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
| | - Z D Wang
- Department of Hematology, 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
| | - X H Zhang
- Department of Hematology, 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
| | - L P Xu
- Department of Hematology, 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
| | - K Y Liu
- Department of Hematology, 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
| | - X J Huang
- Department of Hematology, 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
| | - Y Q Sun
- Department of Hematology, 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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Hu CY, Wan XL, Zhang YJ, Deng XT, Wang ZD, Misra RDK. The synergistic effect of grain boundary and grain orientation on micro-mechanical properties of austenitic stainless steel. J Mech Behav Biomed Mater 2021; 118:104473. [PMID: 33773237 DOI: 10.1016/j.jmbbm.2021.104473] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 11/02/2020] [Accepted: 03/15/2021] [Indexed: 01/20/2023]
Abstract
Micro/nano-scale deformation behavior including hardness, elastic modulus, and pop-ins, was studied in a medical austenitic stainless steel followed by post-mortem EBSD characterization. Relatively higher hardness and modulus was observed near {101} and more pop-ins occurred in this orientation at high loading rate. The activation volume (v) obtained from nanoindentation had weak dependence on grain orientation and was ~10-20 b3, indicating that neither diffusional creep processes nor conventional dislocation segments passing through dislocation forests controls plastic deformation in our study. The plastic zone radius (c) and the distance of the indent from the grain boundary (d) were used to describe the effect of grain boundary on the pop-in effect. The ratio of c/d meets amplitude version of Gaussian peak function distribution for a given orientation, whose peak value remains nearly constant for all the orientations.
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Affiliation(s)
- C Y Hu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China; Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials, and Biomedical Engineering, University of Texas at El Paso, El Paso, TX, 79968, USA
| | - X L Wan
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China.
| | - Y J Zhang
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - X T Deng
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China
| | - Z D Wang
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China
| | - R D K Misra
- Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials, and Biomedical Engineering, University of Texas at El Paso, El Paso, TX, 79968, USA
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Shen SJ, Xu YL, Zhou YD, Ren GS, Jiang J, Jiang HC, Zhang J, Li B, Jin F, Li YP, Xie FM, Shi Y, Wang ZD, Sun M, Yuan SH, Yu JJ, Chen Y, Sun Q. [A comparative study of breast cancer mass screening and opportunistic screening in Chinese women]. Zhonghua Wai Ke Za Zhi 2021; 59:109-115. [PMID: 33378802 DOI: 10.3760/cma.j.cn112139-20201015-00753] [Citation(s) in RCA: 1] [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 compare the population characteristics, the positive rate of screening, the detection rate of breast cancer, early diagnosis rate and the cost between the mass screening group and opportunistic screening group of breast cancer. Methods: This study is a prospective multicenter cohort study conducted from January 1, 2014 to December 31, 2016. The participants were enrolled for mass screening or opportunistic screening of breast cancer. After completing the questionnaire, all the participants received breast physical examination and breast ultrasound examination every year for 3 rounds by year. The participants' characteristics and screening results of the two groups were compared by χ2 test, Fisher exact test or Wilcoxon rank-sum test. Results: A total of 20 080 subjects were enrolled. In the mass screening group, 9 434 (100%), 8 111 (85.98%) and 3 940 (41.76%) cases completed the 3 rounds of screening, and 10 646 (100%), 6 209 (58.32%) and 2 988 (28.07%) cases in the opportunistic screening group, respectively. In the opportunistic screening group, the proportions of less than 3 months lactation (1 275/9 796 vs. 1 061/8 860, χ²=4.597, P=0.032), non-fertility (850/10 646 vs. 574/9 434, χ²=27.400, P<0.01), abortion history (6 384/10 646 vs. 5 062/9 434, χ²=81.232, P<0.01), postmenopausal (2 776/10 646 vs. 2 217/9 434, χ²=17.757, P<0.01), long-term oral contraceptives(>6 months) (171/10 646 vs. 77/9 434, χ²=25.593, P<0.01) and family history of breast cancer in first-degree relatives (464/10 646 vs. 236/9 434, χ²=51.257, P<0.01) were significantly higher than those in mass screening group. The positive rate of screening (514/10 646 vs. 128/9 434, χ²=194.736, P<0.01), the detection rate of breast cancer (158/10 646 vs. 13/9 434, χ²=107.374, P<0.01), and positive rate of biopsy (158/452 vs. 13/87, χ²=13.491, P<0.01) in the opportunistic screening group were significantly higher than those of the mass screening group. The early diagnosis rate of the mass screening group was significantly higher than the opportunistic screening group (10/12 vs. 66/141, χ²=5.902, P=0.015). The average cost for detecting each breast cancer case of the mass screening group was 215 038 CNY, which was 13.6 times of the opportunistic screening group (15 799 CNY/case). In the opportunistic screening group, the positive rate of biopsy in primary hospitals was significantly lower than that in large-volume hospitals (79/267 vs. 79/185, χ²=8.267, P=0.004), but there was no significant difference in the mass screening group (6/37 vs. 7/50, χ²=0.082, P=0.774). Conclusions: Breast cancer screening can improve early detection rate. Compared with the mass screening mode, the opportunistic screening mode has the advantages of higher proportion of high-risk factors, higher positive rate of screening, higher detection rate of breast cancer, higher positive rate of biopsy, and lower cost of screening. However, the early diagnosis rate of breast cancer of opportunistic screening is lower than that of mass screening. The positive rate of opportunistic screening in primary hospitals is lower than that of large-volume hospitals. The two screening modes have their own advantages and should be chosen according to local conditions of different regions in China.
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Affiliation(s)
- S J Shen
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y L Xu
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y D Zhou
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - G S Ren
- Department of Breast Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - J Jiang
- Department of Breast Surgery, the Southwest Hospital of Army Medical University, Chongqing 400038, China
| | - H C Jiang
- Department of Breast Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - J Zhang
- Department of Breast Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - B Li
- Department of Breast Surgery, Beijing Hospital, Beijing 100005, China
| | - F Jin
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Y P Li
- Department of General Surgery, Chifeng Baoshan Hospital, Chifeng 024076, Inner Mongolia Autonomous Region, China
| | - F M Xie
- Department of General Surgery, the First People's Hospital of Hani-Yi Autonomous Prefecture of Honghe, Mengzi 661100, Yunnan Province, China
| | - Y Shi
- Department of Breast, Shanxi Institute of Traditional Chinese Medicine, Taiyuan 030012, China
| | - Z D Wang
- Department of General Surgery, Ordos Central Hospital, Ordos 017299, Inner Mongolia Autonomous Region, China
| | - M Sun
- Department of Breast Surgery, Qingdao Municipal Hospital, Qingdao 266011, China
| | - S H Yuan
- Department of Breast Surgery, Hospital of Xinjiang Production and Construction Corps, Urumqi 830002, China
| | - J J Yu
- Department of Breast Surgery, Xingtai Third Hospital, Xingtai 054000, Hebei Province, China
| | - Y Chen
- Hubei Yingshan Maternal and Child Health Care Hospital, Huanggang 438700, Hubei Province, China
| | - Q Sun
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Li Y, Song ZX, Wang ZD, Sun SL, An QH, Wang T. [A case of lumbar fracture caused by Dix-Hallpike test]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:161-162. [PMID: 33548948 DOI: 10.3760/cma.j.cn115330-20200320-00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Jingmei Group General Hospital, Beijing 102300, China
| | - Z X Song
- Department of Orthopedics, Beijing Jingmei Group General Hospital, Beijing 102300, China
| | - Z D Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Jingmei Group General Hospital, Beijing 102300, China
| | - S L Sun
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Jingmei Group General Hospital, Beijing 102300, China
| | - Q H An
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Jingmei Group General Hospital, Beijing 102300, China
| | - T Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Jingmei Group General Hospital, Beijing 102300, China
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Hao JH, Liu WD, Wang ZD, Wang PJ, Zhang M, Jiang QL, Liu C, Wang JY, Zhang LY. [Retrospective analysis of mechanical thrombectomy for distal branch occlusion of middle cerebral artery]. Zhonghua Yi Xue Za Zhi 2020; 100:1240-1244. [PMID: 32344496 DOI: 10.3760/cma.j.cn112137-20191120-02531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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 necessity, feasibility, technical points, operative complications and prognosis of mechanical thrombectomy for distal branch occlusion of middle cerebral artery. Methods: Mechanical thrombectomy was performed on 42patients (28 males,14 females; age ranged from 43 to 88 years, mean 65.48years)with distal branch occlusion of middle cerebral artery (M2, M3), between May 2017 to July 2019. Theclinical feature was retrospectively analyzed. The NIHSS score before operation, 24 hours after operation and 1 week after operation, the recanalization of occluded vessels during operation, the complications and the recovery after 3 months (3 months mRS score) were analyzed. Results: Of the 42 patients, 38 patients were successfully recanalized, and the recanalization rate was 90.48%. Postoperative hemorrhage in 6 cases and vasospasm in 17 cases. At 90 days after operation, the mRS score was 0 in 13 cases, 1 in 11 cases, 2 in 6 cases, and 0 cases died. Conclusions: Mechanical thrombotomy is safe and feasible for patients with distal branch occlusion of middle cerebral artery (M2, M3). However, the risks and benefits of patients should be fully considered.
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Affiliation(s)
- J H Hao
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - W D Liu
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - Z D Wang
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - P J Wang
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - M Zhang
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - Q L Jiang
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - C Liu
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - J Y Wang
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - L Y Zhang
- Departmen of Neurosurgery, Liaocheng Brain Hospital, Liaocheng 252000, China
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Zhang DB, Zhu SL, Wang ZD. Protocol for Implementing Quantum Nonparametric Learning with Trapped Ions. Phys Rev Lett 2020; 124:010506. [PMID: 31976736 DOI: 10.1103/physrevlett.124.010506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Indexed: 06/10/2023]
Abstract
Nonparametric learning is able to make reliable predictions by extracting information from similarities between a new set of input data and all samples. Here we point out a quantum paradigm of nonparametric learning that offers an exponential speedup over the sample size. By encoding data into quantum feature space, the similarity between the data is defined as an inner product of quantum states. A quantum training state is introduced to superpose all data of samples, encoding relevant information for learning in its bipartite entanglement spectrum. We demonstrate that a trained state for prediction can be obtained by entanglement spectrum transformation, using the quantum matrix toolbox. We further work out a feasible protocol to implement the quantum nonparametric learning with trapped ions, and demonstrate the power of quantum superposition for machine learning.
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Affiliation(s)
- Dan-Bo Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement, SPTE and Frontier Research Institute for Physics South China Normal University, Guangzhou 510006, China
| | - Shi-Liang Zhu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement, SPTE and Frontier Research Institute for Physics South China Normal University, Guangzhou 510006, China
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Z D Wang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement, SPTE and Frontier Research Institute for Physics South China Normal University, Guangzhou 510006, China
- Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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Zang Y, Zhang J, Wang R, Wang ZD, Zhu Y, Ren X, Li S, Dong XY, Zang SQ. Inter-chain double-site synergistic photocatalytic hydrogen evolution in robust cuprous coordination polymers. Chem Commun (Camb) 2020; 56:6261-6264. [DOI: 10.1039/d0cc01785j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We evaluate photocatalytic H2 generation of three Cu-based coordination polymers, a record-high rate of 57.64 mmol g−1 h−1 for Cu–MIM, and reveal that the excellent performances are due to the synergies of the inter-chain double-site Cu atoms.
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Affiliation(s)
- Ying Zang
- Green Catalysis Center, and College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Jiangwei Zhang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences (CAS)
- Dalian 116023
- P. R. China
| | - Rui Wang
- Green Catalysis Center, and College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Zhao-Di Wang
- Green Catalysis Center, and College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yandi Zhu
- School of Physics and Microelectronics
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xiaoyan Ren
- School of Physics and Microelectronics
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Shunfang Li
- School of Physics and Microelectronics
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xi-Yan Dong
- College of Chemistry and Chemical Engineering
- Henan Polytechnic University
- Jiaozuo 454000
- China
| | - Shuang-Quan Zang
- Green Catalysis Center, and College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
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Yao S, Zhu YS, Shi GP, Guo JH, Wang ZD, Chu XF, Jiang XY, Jin L, Wang XF. Associations of TNF-α -308 G>A and TNF-β 252 A>G with Physical Function and BNP-Rugao Longevity and Ageing Study. J Nutr Health Aging 2020; 24:358-363. [PMID: 32115620 DOI: 10.1007/s12603-020-1336-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To explore the associations of TNF-α -308 G>A (rs1800629) and TNF-β 252 A>G (rs909253) with physical function and plasma B-type natriuretic peptide (BNP). METHODS Data of 1747 community-dwelling elders from the ageing arm of the Rugao Longevity and Ageing Study was used. Physical function was measured by handgrip strength, Timed Up and Go (TUG) test and 5-meter walking test (5MWT). RESULTS AA genotype of the TNF-α -308 G>A was associated with higher mean time of TUG test and 5MWT (multivariable adjusted β=5.75 and 5.70, respectively, p<0.05), compared with GG genotype. For the TNF-β 252 A>G polymorphism, GG genotype was associated with higher mean time of TUG test and 5MWT (multivariable adjusted β=1.55 and 0.83, respectively, p<0.05) and lower handgrip strength (multivariable adjusted β=-0.69, p<0.05), compared with AA genotype. Further, GG was associated with greater odds of low handgrip strength (OR=1.47, 95% CI=1.06-2.04), low speed of TUG test (OR=1.87, 95% CI=1.20-2.01) and elevated BNP (OR=1.30, 95% CI=1.08-1.84). GG also interacted with elevated BNP to be associated with greater odds of low handgrip strength and 5MWT. CONCLUSIONS TNF-β 252 A>G was associated with physical function measurements, plasma BNP level, and odds of elevated BNP in an elderly population. TNF-β 252 A>G also interacted with elevated BNP to be associated with greater odds of physical function measurements.
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Affiliation(s)
- S Yao
- Li Jin, MOE Key Laboratory of Contemporary Anthropology and State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China. E-mail address: . Xiao-Feng Wang, MOE Key Laboratory of Contemporary Anthropology and State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China. E-mail address:
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Zhang M, Cui QK, Lin K, Hao JH, Wang ZD, Chen WH, Wen CM, Dai GL, Wang JY, Liu WD, Wang SL, Zhang LY. [Factors influencing poor prognosis of mechanical thrombectomy in time window of acute ischemic stroke]. Zhonghua Yi Xue Za Zhi 2019; 99:1976-1980. [PMID: 31269604 DOI: 10.3760/cma.j.issn.0376-2491.2019.25.015] [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: Investigate the causes of poor prognosis of mechanical thrombectomy in the time window of acute ischemic stroke (AIS) with anterior circulation. Methods: A retrospective analysis was made on the data of 78 patients with anterior circulation AIS who underwent mechanical thrombectomy in the time window from January 2017 to December 2017 in the Department of Vascular Neurosurgery of Liaocheng Brain Hospital. The modified Rankin scale (mRS) was used to evaluate the prognosis of the patients 3 months after operation. According to the prognosis,the patients were divided into the group with good prognosis (42 cases, mRS<2 points) and the group with poor prognosis (36 cases, mRS<3 points). Univariate and multivariate Logistic regression analysis was used to analyze the related factors of poor prognosis. Results: (1) Univariate analysis showed that the prognosis of patients with good combination and primary stenosis of diabetes mellitus and atherosclerosis was lower than that of patients with poor prognosis (P<0.05). The collateral circulation compensation rate and vascular recanalization rate of patients with good prognosis were higher than those of patients with poor prognosis (P<0.05). Learning significance (P<0.05). (2) Multivariate analysis showed that diabetes mellitus (P=0.035), collateral circulation compensation (P=0.011) and primary atherosclerotic stenosis (P=0.042) were independent risk factors for poor prognosis. Conclusion: Perfect preoperative evaluation and strict screening of patients, good collateral circulation compensation,individualized treatment for patients with primary atherosclerotic stenosis,and strict control of postoperative hyperglycemia can improve the clinical prognosis of endovascular therapy.
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Affiliation(s)
- M Zhang
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - Q K Cui
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - K Lin
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - J H Hao
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - Z D Wang
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - W H Chen
- Department of Neurology, Zhangzhou Municipal Hospital of Fujian Province, Zhangzhou 363000, China
| | - C M Wen
- Department of Neurology, Henan Province, Nanyang City Center Hospital, Nanyang 473000, China
| | - G L Dai
- Department of Intervention Center, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - J Y Wang
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - W D Liu
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - S L Wang
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
| | - L Y Zhang
- Department of Vasculary Neurosurger, Shandong Province, Liaocheng Brain Hospital, Liaocheng 252000, China
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Wang ZD, Jiao XX, Peng XQ, Liu L, Zhang LF, Zhou L. Clinicopathological characteristics and prognosis of gastric neuroendocrine neoplasms of different clinical classifications. Shijie Huaren Xiaohua Zazhi 2019; 27:267-275. [DOI: 10.11569/wcjd.v27.i4.267] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In recent years, the incidence of gastric neuroendocrine neoplasms (NENs) is on the rise. Gastric NENs have obvious heterogeneity. The clinicopathological characteristics and prognosis of gastric NEN of different clinical classifications are different. According to the diagnostic criteria developed by both Chinese and foreign scholars, Chinese clinical classification experts suggest four types of gastric NENs. Studying the clinicopathological characteristics of gastric NENs of different clinical classifications is of great significance for the diagnosis and treatment of patients with gastric NENs.
AIM To investigate the clinicopathological characteristics, to screen risk factors for metastasis, and to analyze the prognosis of gastric NENs of different clinical classifications.
METHODS Clinicopathological and follow-up data of 160 patients with gastric NENs admitted to The First Affiliated Hospital of Zhengzhou University from 2011 to 2017 were retrospectively analyzed. Gastric NENs were classified into four basic types by using the four-type classification. The χ2 and t tests were used to analyze differences in clinicopathological characteristics of gastric NENs of different clinical classifications. Logistics regression method was used to analyze the risk factors for metastasis. Kaplan-Meier method and Log-rank test were used for survival analysis.
RESULTS The average age of 160 patients with gastric NENs was 58.3 years ± 10.8 years. Of 160 gastric NEN cases, there were two cases that were not clearly classified, 41 cases (25.9%) of type Ⅰ, 8 cases (5.1%) of type Ⅱ, 25 cases (15.8%) of type Ⅲ, and 84 cases (53.2%) of type Ⅳ. The median (lower quartile, upper quartile) diameter of types Ⅰ, Ⅱ, Ⅲ, and Ⅳ tumors was 0.5 cm (0.3 cm, 0.7 cm), 1.5 cm (1.0 cm, 1.9 cm), 3.5 cm (2.0 cm, 4.8 cm), and 5.0 cm (3.0 cm, 7.0 cm), respectively, and the difference was statistically significant (χ2 = 64.532, P = 0.000). Of 150 patients, 83 had metastasis. Of 158 cases, 156 patients were followed, with a follow-up rate being 98.7%, and the follow-up period was 1 to 62 mo. At the end of follow-up (December 31, 2017), the overall survival rate was 97.6%, 85.7%, 64.0%, and 55.4% for types Ⅰ, Ⅱ, Ⅲ, and Ⅳ tumors, respectively.
CONCLUSION The maximum diameter of tumor is an important predictor of metastasis. The prognosis of patients with gastric NENs of different types is different. The prognosis of types Ⅰ and Ⅱ is better than that of types Ⅲ and Ⅳ, and type Ⅳ is more common in male patients.
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Affiliation(s)
- Zhao-Di Wang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Xiao-Xiao Jiao
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Xiao-Qian Peng
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Lu Liu
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Lian-Feng Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Lin Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
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Tan X, Zhao YX, Liu Q, Xue G, Yu HF, Wang ZD, Yu Y. Simulation and Manipulation of Tunable Weyl-Semimetal Bands Using Superconducting Quantum Circuits. Phys Rev Lett 2019; 122:010501. [PMID: 31012718 DOI: 10.1103/physrevlett.122.010501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Indexed: 05/06/2023]
Abstract
We simulated highly tunable Weyl-semimetal bands using superconducting quantum circuits. Driving the superconducting quantum circuits with microwave fields, we mapped the momentum space of a lattice to the parameter space, realizing the Hamiltonian of a Weyl semimetal. By measuring the energy spectrum, we directly imaged the Weyl points, whose topological winding numbers were further determined from the Berry curvature measurement. In addition, we manipulated the band structure with an additional pump microwave field, producing a momentum-dependent Weyl-point energy together with an artificial magnetic field, which are indispensable for generating chiral magnetic topological currents in some special Weyl semimetals and may have significant impact on topological physics.
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Affiliation(s)
- Xinsheng Tan
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Y X Zhao
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Qiang Liu
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Guangming Xue
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Hai-Feng Yu
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Yang Yu
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
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Xie BY, Wang HF, Zhu XY, Lu MH, Wang ZD, Chen YF. Photonics meets topology. Opt Express 2018; 26:24531-24550. [PMID: 30469568 DOI: 10.1364/oe.26.024531] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 08/20/2018] [Indexed: 06/09/2023]
Abstract
The topological phases in materials have been studied in recent decades for their unique boundary states and transport properties. Photonic systems with band structures embrace the topological phases closely, where they not only provide platforms to testify the topological band theory, but also shed light on designing novel optical devices. In this review, we present exciting developments, supported by brief descriptions of prominent milestones of topological phases in photonic systems in recent years. These studies may sustain further developments of optical devices and offer novel methods for light manipulations.
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Zhang Q, Fang W, Ma L, Wang ZD, Yang YM, Lu YQ. VEGF levels in plasma in relation to metabolic control, inflammation, and microvascular complications in type-2 diabetes: A cohort study. Medicine (Baltimore) 2018; 97:e0415. [PMID: 29642210 PMCID: PMC5908634 DOI: 10.1097/md.0000000000010415] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 03/14/2018] [Accepted: 03/21/2018] [Indexed: 12/21/2022] Open
Abstract
The vascular endothelial growth factor (VEGF) level in human circulation may reflect the severity of endothelial dysfunction in patients with diabetes mellitus, which leads to diabetic microvascular complications.We determined plasma VEGF levels as well as metabolic control and inflammatory factors in 26 healthy subjects and 52 type-2 diabetes mellitus (T2DM) patients with or without diabetic microvascular complications. Pearson correlation coefficient was used to evaluate the associations among those indices.The results showed that VEGF levels in plasma were positively correlated with fasting blood glucose level, glycosylated hemoglobin (HbA1c) level, type 1 helper T cell (Th1) percentage, and Th1/Th2 ratio, while they were negatively correlated with regulatory T cell percentage. Multiple linear regression analysis showed that HbA1c and Th1/Th2 ratio were the independent predictors of VEGF levels in T2DM patients.Thus, in T2DM patients with poor glycemic control as well as an elevated Th1/Th2 cell ratio, more VEGF might be released.
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Wang L, Wang HX, Zhu L, Zheng XL, Wang ZD, Yan HM, Ding L, Han DM. [Efficacy and security of matched unrelated donor hematopoietic stem cell transplant with transfusion of multipotent mesenchymal cells in pediatric severe aplastic anemia]. Zhonghua Xue Ye Xue Za Zhi 2017; 37:453-7. [PMID: 27431066 PMCID: PMC7348345 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
目的 探讨HLA相合无关供者造血干细胞移植(MUD-HSCT)联合脐带间充质干细胞(MSC)输注治疗儿童重型再生障碍性贫血(SAA)的疗效及安全性。 方法 回顾性分析19例行MUDHSCT联合MSC治疗的儿童SAA患者临床资料,观察移植后造血重建及移植相关并发症。 结果 19例患儿移植后均获得迅速造血重建,粒细胞中位植入时间为12(9~21) d,血小板中位植入时间为14(8~24) d, 1例患儿于移植后4个月出现继发植入失败。9例患儿发生Ⅰ度急性移植物抗宿主病(aGVHD),1例发生Ⅲ度aGVHD并于移植后6个月发生广泛型慢性移植物抗宿主病。CMV阳性15例,出血性膀胱炎2例。10例患儿移植后出现不同程度、不同部位的感染。中位随访时间为27(8~70)个月,19例患儿截至随访终点均无病存活,其中1例患儿于移植后4个月发生淋巴细胞增殖性疾病,接受利妥昔单抗联合化疗治疗后发生继发性植入失败,后接受以父亲为供者的单倍体造血干细胞移植成功植入。 结论 MUD-HSCT联合MSC输注治疗儿童SAA是安全有效的。
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Affiliation(s)
- L Wang
- Department of Hematology, the Air Force General Hospital, PLA, Beijing 100142, China
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29
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Liu Y, Liu YP, Liu JY, Yang HC, Wang ZD. [Expression of FoxM1 and BCRP in invasive breast carcinoma of no special type and its prognosis significance]. Zhonghua Bing Li Xue Za Zhi 2017; 46:30-33. [PMID: 28072973 DOI: 10.3760/cma.j.issn.0529-5807.2017.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between expression of FoxM1 and BCRP in invasive breast carcinoma of no special type (IBC-NST) tissues and the clinical pathological characteristics and prognosis of the patients. Methods: Seventy-eight cases of IBC-NST with excision were included. The expression of FoxM1 and BCRP was assessed by immunohistochemistry and its relationship with the clinical pathological characteristics and prognosis was evaluated. Results: FoxM1 was expressed in 71.8%(56/78) of IBC-NST, and the expression was related to tumor diameter, TNM staging, ER, PR and HER2. BCRP was expressed in 53.8% (42/78) of IBC-NST, and the expression was related to age, tumor diameter, lymph node metastasis, ER and HER2. Kaplan-Meier survival analysis showed the survival time was related to tumor diameter, TNM staging, lymph node metastasis and the expression of FoxM1, BCRP, ER, PR and HER2. Cox multivariate analysis showed that TNM staging, FoxM1, BCRP, HER2 were determinants of patient survival time. Conclusions: The expression of FoxM1 is associated with tumor diameter, TNM staging, ER, PR and HER2 while BCRP is associated with age, tumor diameter, lymph node metastasis, ER and HER2. Both FoxM1 and BCRP have prognostic significance in IBC-NST patients.
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Affiliation(s)
- Y Liu
- Department of Pathology, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
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Wang ZD, Jiang XM, Zhong XY, Kang PC, Li CL, Su ZL, Tai S, Hua CX, Cui YF. [Combined multiple artery-first approach to pancreatoduodenectomy]. Zhonghua Wai Ke Za Zhi 2016; 54:854-858. [PMID: 27806780 DOI: 10.3760/cma.j.issn.0529-5815.2016.11.013] [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 investigate the clinical application of combined multiple artery-first approach to pancreatoduodenectomy. Methods: The clinical data of 53 patients who were diagnosed with peripancreatic head tumor at Department of Biliary-Pancreatic Surgery of Second Affiliated Hospital of Harbin Medical University between June 2013 and June 2015 was retrospectively analyzed.Pancreatic enhanced CT scan, magnetic resonance cholangiopancreatography, ultrasonography and tumor marker detection were applied for all the patients preoperatively.The 53 patients were operated by combined multiple artery-first approach(superior+ posterior approach, superior+ inferior approach, posterior+ inferior approach, superior+ posterior+ inferior approach) according to individualized therapeutic concept.And 42 patients underwent pancreatoduodenectomy, 9 patients underwent palliative operation and 2 patients just received exploratory operation. Results: Forty-two peripancreatic head tumor patients underwent pancreatoduodenectomy by applying combined multiple artery-first approach.The median operation time and intraoperative blood loss were (5.4±3.1)hours and (366±297)ml and the harvested lymph node and duration of hospital stay were 19±5 and (14.0±5.6)days.Nine patients underwent "total mesopancreas excision" and the rate of postoperative pancreatic fistula and R0 resection were 38.1% and 88.1%. Anomalous origin hepatic right artery was detected in one patients during the operation and no death occurred within 30 days postoperatively. Conclusion: According to the tumor location and patient's condition, individualistically applying combined multiple artery-first approach can reduce intraoperative blood loss, terminate unnecessary surgery, detect anomalous origin artery, make the tumor resection more radical and pancreatoduodenectomy more safety.
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Affiliation(s)
- Z D Wang
- Department of Biliary-Pancreatic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
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31
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Zhao YX, Schnyder AP, Wang ZD. Unified Theory of PT and CP Invariant Topological Metals and Nodal Superconductors. Phys Rev Lett 2016; 116:156402. [PMID: 27127977 DOI: 10.1103/physrevlett.116.156402] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 06/05/2023]
Abstract
As PT and CP symmetries are fundamental in physics, we establish a unified topological theory of PT and CP invariant metals and nodal superconductors, based on the mathematically rigorous KO theory. Representative models are constructed for all nontrivial topological cases in dimensions d=1, 2, and 3, with their exotic physical meanings being elucidated in detail. Intriguingly, it is found that the topological charges of Fermi surfaces in the bulk determine an exotic direction-dependent distribution of topological subgap modes on the boundaries. Furthermore, by constructing an exact bulk-boundary correspondence, we show that the topological Fermi points of the PT and CP invariant classes can appear as gapless modes on the boundary of topological insulators with a certain type of anisotropic crystalline symmetry.
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Affiliation(s)
- Y X Zhao
- Max-Planck-Institute for Solid State Research, D-70569 Stuttgart, Germany
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Andreas P Schnyder
- Max-Planck-Institute for Solid State Research, D-70569 Stuttgart, Germany
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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Abstract
We report two theoretical discoveries for Z(2) topological metals and semimetals. It is shown first that any dimensional Z(2) Fermi surface is topologically equivalent to a Fermi point. Then the famous conventional no-go theorem, which was merely proven before for Z Fermi points in a periodic system without any discrete symmetry, is generalized so that the total topological charge is zero for all cases. Most remarkably, we find and prove an unconventional strong no-go theorem: all Z(2) Fermi points have the same topological charge ν(Z(2))=1 or 0 for periodic systems. Moreover, we also establish all six topological types of Z(2) models for realistic physical dimensions.
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Affiliation(s)
- Y X Zhao
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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Ma XZ, Zhang BS, Wang ZD, Wang MY. [Comparisons of clinical effects among three kinds of treatments of 1/3 displaced midshaft clavicular fractures in adults]. Zhonghua Yi Xue Za Zhi 2016; 96:25-9. [PMID: 26792603 DOI: 10.3760/cma.j.issn.0376-2491.2016.01.006] [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
OBJECTIVES To compare the clinical effects among three kinds of treatments (external fixation, plate fixation, and non-operation) of 1/3 displaced midshaft clavicular fractures in adults. METHODS Retrospective analysis was conducted on 306 patients with clavicular fractures in Trauma Orthopedic Department in Jishuitan Hospital from March 2010 to May 2013, and 89 of these patients met the inclusive criteria.Among them, there were 29 cases of external fixation (Group A), 30 cases of plate fixation (Group B), and 30 cases of non-operation with the clavicle sling in Outpatient and Emergency Department (Group C). The average follow-up period was 32 months.The results were evaluated from four perspectives, respectively, follow-up period, Constant Shoulder Score (CSS), Disability of the Arm Shoulder and Hand Score (DASH), and imaging.There was no significant difference in demography, severity of injuries, mechanism of injury, and fracture type among the patients in the three groups. RESULTS Among 29 cases of external fixation, 25 cases were successfully followed up, 4 were lost.60 cases of plate fixationand non-operation were all successfully followed up.Based on the pairwise comparison of CSS and DASH among the three groups, there was no significant difference between external fixation [(94.0±6.4), (15.2±3.4)Score] and plate fixation[(92.9±8.4), (15.7±3.5)Score] (both P>0.05). Mean values of CSS and DASH of non-operation group [(86.0±3.6), (18.0±3.6)Score] were lower than those of the former two groups (P<0.001). The healing time of 3 kinds of treatments were as follows: external fixation 10.4±2.32 weeks; plate fixation 12.1±2.5 weeks; and non-operation 15.7±2.2 weeks.In terms of their complications, for the external fixation group, there was 1 case of nonunion (4%); and 3 cases of angulation deformity in the 12(th) week, whose external fixations were maintained till their unions in the 16(th) week.Shortening and displacement did not appear in any cases.In the plate fixation group, there was 1 case of nonunion (3%) and no malunion in this group.The biggest complications of plate fixation were implants stimulus and to remove the plate in the second operation, accounting for 60%.In the non-operation group, there were 3 cases of nonunion (10%), and 12 cases of malunion (40%) including 10 cases without symptoms and 2 cases with symptoms.The satisfaction rates for the appearance of shoulder after these 3 kinds of treatments among the patients were 96%, 93% and 77%, respectively. CONCLUSIONS (1) In treating 1/3 displaced midshaft clavicular fractures in adults, external fixation and plate fixation are overall better than non-operation.And there is no significant difference in curative effects between the two. (2) Both external fixation and plate fixation have its advantages and disadvantages.The choice of treatment must be based on the clinical type of the fracture and the communication with patients.
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Affiliation(s)
- X Z Ma
- Medical Center, Tsinghua University, Beijing 100084, China
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Cheng LJ, Xu ZR, Zhang Q, Wang ZD, Wu FW, Yang WX. Effects of comprehensive intensive therapies on the change of intima-media thickness of carotid arteries in type 2 diabetic patients: A report of 4-year follow-up with a literature review. Diab Vasc Dis Res 2016; 13:31-40. [PMID: 26499916 DOI: 10.1177/1479164115605001] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The aim was to evaluate the effect of comprehensive intensive therapy on the carotid and femoral arteries of intima-media thickness in patients with type 2 diabetes mellitus after 4-year follow-up. METHODS In this prospective 4-year study, patients (N = 210) with newly diagnosed type 2 diabetes received either comprehensive intensive therapy (n = 110) or conventional therapy (n = 100). Blood pressure, blood glucose and lipid levels were monitored every 3-6 months, and carotid and femoral arteries of intima-media thickness were monitored with ultrasonography. For the literature review, various databases were searched until 20 December 2014 for studies that evaluated effects of intensive multi-factorial therapies on comprehensive intensive therapy in type 2 diabetes mellitus patients. RESULTS The comprehensive intensive therapy group had a smaller rate of carotid intima-media thickness increase than the conventional therapy (control) group (p < 0.05). The carotid intima-media thickness in comprehensive intensive therapy group remained stable while the adjusted rate of carotid intima-media thickness increase was 12.55% in the control group. The femoral intima-media thickness change was also smaller in comprehensive intensive therapy group but the difference over time did not reach significance. CONCLUSION The carotid intima-media thickness remained stable in type 2 diabetes mellitus patients who received comprehensive intensive therapy, suggesting that multi-factorial intensive therapies might have potential in reducing macro-vascular events in these patients.
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Affiliation(s)
- Li-Juan Cheng
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhe-Rong Xu
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qin Zhang
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhao-Di Wang
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fang-Wei Wu
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wei-Xia Yang
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Ma L, Wang ZD, Li JP, Wei F, Liu Q. Seroprevalence of Toxoplasma gondii infection in freerange chickens in Jilin Province, northeastern China. Trop Biomed 2015; 32:693-698. [PMID: 33557460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The prevalence of Toxoplasma gondii infection in free-range chickens in Jilin province, northeastern China was investigated. A total of 1095 serum samples were collected from nine administrative regions from July to October, 2012, and antibodies to T. gondii were examined by an in-house enzyme-linked immunosorbent assay (ELISA) using Toxoplasma lysate antigen (TLA). The detection results were confirmed by Western blot. The overall seroprevalence of T. gondii in free-range chickens was 17.6% (95% confidence interval [CI], 15.4-19.4%), ranging from 13.3% (95% CI, 6.3-20.4%) in Siping to 23.6% (95% CI, 15.7-31.6%) in Liaoyuan. There was no significant difference in T. gondii infection among different regions in Jilin province (P> 0.05). The widespread presence of T. gondii infection in freerange chickens of Jilin province implies the wide contamination with T. gondii oocysts in the living environment of people, and free-range chickens might be an important source of infection for humans.
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Affiliation(s)
- L Ma
- College of Life Science, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118 Jilin Province, China
| | - Z D Wang
- Military Veterinary Institute, Academy of Military Medical Sciences, Changchun, Jilin Province 130122, China
| | - J P Li
- Military Veterinary Institute, Academy of Military Medical Sciences, Changchun, Jilin Province 130122, China
| | - F Wei
- College of Life Science, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118 Jilin Province, China
| | - Q Liu
- Military Veterinary Institute, Academy of Military Medical Sciences, Changchun, Jilin Province 130122, China
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Abstract
Hybrid architectures, consisting of conventional and topological qubits, have recently attracted much attention due to their capability in consolidating robustness of topological qubits and universality of conventional qubits. However, these two kinds of qubits are normally constructed in significantly different energy scales, and thus the energy mismatch is a major obstacle for their coupling, which can support the exchange of quantum information between them. Here we propose a microwave photonic quantum bus for a strong direct coupling between the topological and conventional qubits, where the energy mismatch is compensated by an external driving field. In the framework of tight-binding simulation and perturbation approach, we show that the energy splitting of Majorana fermions in a finite length nanowire, which we use to define topological qubits, is still robust against local perturbations due to the topology of the system. Therefore, the present scheme realizes a rather robust interface between the flying and topological qubits. Finally, we demonstrate that this quantum bus can also be used to generate multipartitie entangled states with the topological qubits.
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Affiliation(s)
- Zheng-Yuan Xue
- 1] Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China [2] Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Ming Gong
- Department of Physics and Center for Quantum Coherence, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Jia Liu
- Department of Physics and Center for Quantum Coherence, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Yong Hu
- 1] Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China [2] School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shi-Liang Zhu
- 1] National Laboratory of Solid State Microstructure and School of Physics, Nanjing University, Nanjing 210093, China [2] Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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37
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Abstract
We develop a topological theory for disordered Weyl semimetals in the framework of the gauge invariance of the replica formalism and boundary-bulk correspondence of Chern insulators. An anisotropic topological θ term is analytically derived for the effective nonlinear σ model. It is this nontrivial topological term that ensures that the bulk transverse transport of Weyl semimetals is robust against disorders. Moreover, we establish a general diagram that reveals the intrinsic relations among topological terms in the nonlinear σ models and gauge response theories, respectively, for (2n+2)-dimensional topological insulators, (2n+1)-dimensional chiral fermions, (2n+1)-dimensional chiral semimetals, and (2n)-dimensional topological insulators with n being a positive integer.
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Affiliation(s)
- Y X Zhao
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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38
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Xu P, Cai YN, Leng X, Wang J, Ma W, Mu GD, Jiang J, Liu XY, Wang ZD, Zhao Q, Yang GL. Seroprevalence of Toxoplasma gondii infection in pigs in Jilin Province, Northeastern China. Trop Biomed 2015; 32:116-120. [PMID: 25801260] [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: 06/04/2023]
Abstract
In the present study, a total of 1,235 porcine serum samples were collected from 9 counties in Jilin Province (40°52'~46°18'N,121°38'~131°19'E), northeastern China from August to October 2013, and the seroprevalence of Toxoplasma gondii infection was tested by indirect haemagglutination assay (IHA). The results showed that antibodies to T. gondii were found in 19.1% (95% confidence interval [CI], 16.9% to 21.3%), with higher seroprevalence in the breeding boars (28.6%, 95% CI, 20.0% to 37.2%), and breeding sows (32.0%, 95% CI, 25.2% to 38.9%). No significant difference was found among the slaughter pigs, fattening pigs and the piglets. These results indicated that infection with T. gondii in pigs is widespread in Jilin province, and is of public health concern.
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Affiliation(s)
- P Xu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - Y N Cai
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - X Leng
- State Key Laboratory for Molecular Biology, Institute of Special Wild Economic Animal and Plant Science, Chinese Academy of Agricultural Science, Changchun, Jilin Province 130122, P.R. China
| | - J Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - W Ma
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - G D Mu
- Jilin Center for Animal Disease Control and Prevention, 4510 Xi'an Road, Changchun, Jilin Province 130062, P.R. China
| | - J Jiang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - X Y Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - Z D Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, 666 Liuying Xilu, Changchun, Jilin Province 130122, P.R. China
| | - Q Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
| | - G L Yang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, P.R. China
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39
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Abstract
Numerous studies have evaluated the association between MTHFR C677T polymorphism and osteoporotic fracture risk in postmenopausal women. However, the results have been inconsistent. We performed a meta-analysis of the association between MTHFR C677T polymorphism and osteoporotic fracture risk in postmenopausal women. Only seven case-control studies were retrieved, with a total of 4258 patients and 3454 healthy controls. Meta-analysis results showed no significant association between MTHFR C677T polymorphism and osteoporotic fracture risk in postmenopausal women for all genetic models (for TT vs CC: OR=0.99, 95%CI=0.72-1.39; for TT vs TC: OR=1.02, 95%CI=0.87-1.20; for CC+TC vs TT: OR=0.96, 95%CI=0.71-1.28; for TT+TC vs CC: OR=0.93, 95%CI=0.84-1.03). In the subgroup analysis by ethnicity, the results also showed no significant association between MTHFR C677T polymorphism and susceptibility to osteoporotic fracture in postmenopausal women in both Caucasian and Asian populations. In conclusion, this meta-analysis suggests that MTHFR C677T polymorphism may not be associated with susceptibility to osteoporotic fracture in postmenopausal women.
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Affiliation(s)
- J Z Guan
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - M Wu
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Y Z Xiao
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - J S Zhou
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Z D Wang
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
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40
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Bai YK, Xu YF, Wang ZD. General monogamy relation for the entanglement of formation in multiqubit systems. Phys Rev Lett 2014; 113:100503. [PMID: 25238341 DOI: 10.1103/physrevlett.113.100503] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Indexed: 06/03/2023]
Abstract
We prove exactly that the squared entanglement of formation, which quantifies the bipartite entanglement, obeys a general monogamy inequality in an arbitrary multiqubit mixed state. Based on this kind of exotic monogamy relation, we are able to construct two sets of useful entanglement indicators: the first one can detect all genuine multiqubit entangled states even in the case of the two-qubit concurrence and n-tangles being zero, while the second one can be calculated via quantum discord and applied to multipartite entanglement dynamics. Moreover, we give a computable and nontrivial lower bound for multiqubit entanglement of formation.
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Affiliation(s)
- Yan-Kui Bai
- College of Physical Science and Information Engineering and Hebei Advance Thin Films Laboratory, Hebei Normal University, Shijiazhuang, Hebei 050024, China and Department of Physics and Centre of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Yuan-Fei Xu
- College of Physical Science and Information Engineering and Hebei Advance Thin Films Laboratory, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Z D Wang
- Department of Physics and Centre of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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41
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Zhou J, Hu Y, Yin ZQ, Wang ZD, Zhu SL, Xue ZY. High fidelity quantum state transfer in electromechanical systems with intermediate coupling. Sci Rep 2014; 4:6237. [PMID: 25168206 PMCID: PMC4148701 DOI: 10.1038/srep06237] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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: 05/15/2014] [Accepted: 08/12/2014] [Indexed: 11/09/2022] Open
Abstract
Hybrid quantum systems usually consist of two or more subsystems, which may take the advantages of the different systems. Recently, the hybrid system consisting of circuit electromechanical subsystems have attracted great attention due to its advanced fabrication and scalable integrated photonic circuit techniques. Here, we propose a scheme for high fidelity quantum state transfer between a superconducting qubit and a nitrogen-vacancy center in diamond, which are coupled to a superconducting transmission-line resonator with coupling strength g1 and a nanomechanical resonator with coupling strength g2, respectively. Meanwhile, the two resonators are parametrically coupled with coupling strength J. The system dynamics, including the decoherence effects, is numerical investigated. It is found that both the small (J<<{g1,g2}) and large (J>>{g1,g2}) coupling regimes of this hybrid system can not support high fidelity quantum state transfer before significant technique advances. However, in the intermediate coupling regime (J ~ g1 ~ g2), in contrast to a conventional wisdom, high fidelity quantum information transfer can be implemented, providing a promising route towards high fidelity quantum state transfer in similar coupled resonators systems.
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Affiliation(s)
- Jian Zhou
- 1] Laboratory of Quantum Engineering and Quantum Materials, and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China [2] Anhui Xinhua University, Hefei, 230088, China
| | - Yong Hu
- 1] Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China [2] School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhang-qi Yin
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Shi-Liang Zhu
- National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing 210093, China
| | - Zheng-Yuan Xue
- 1] Laboratory of Quantum Engineering and Quantum Materials, and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China [2] Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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42
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Abstract
In the framework of the Cartan classification of Hamiltonians, a kind of topological classification of Fermi surfaces is established in terms of topological charges. The topological charge of a Fermi surface depends on its codimension and the class to which its Hamiltonian belongs. It is revealed that six types of topological charges exist, and they form two groups with respect to the chiral symmetry, with each group consisting of one original charge and two descendants. It is these nontrivial topological charges which lead to the robust topological protection of the corresponding Fermi surfaces against perturbations that preserve discrete symmetries.
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Affiliation(s)
- Y X Zhao
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Z D Wang
- Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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43
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Xu HR, Chu NN, Chen WL, Wang ZD, Li XN. Liquid chromatography-mass spectrometry method for the quantification of posaconazole in human plasma: application to pharmacokinetics following single-dose administration in the fasted state and with a high-fat meal. Pharmazie 2013; 68:173-177. [PMID: 23556334] [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: 06/02/2023]
Abstract
A liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was developed to determine concentrations of posaconazole in human plasma precipitated by acetonitrile including internal standard. Rapid chromatographic separation was achieved in the mobile phase composition of acetonitrile, water and formic acid (v/v/v, 55:45:0.1) with a flow rate of 0.25 ml/min. Posaconazole-d4 was used as internal standard. Detection was undertaken with cation electrospray tandem mass spectrometry on a Sciex/API3000. The method was accurate, specific and sensitive for the analysis of posaconazole in human plasma in the concentration range of 2-1000 ng/ml. The inter- and intra-batch accuracy was within +/- 10% and the lower limit of quantification was 2 ng/ml. The method facilitated a clinical pharmacokinetic study after oral administration of a single-dose of posaconazole suspension in the fasted state and with a high-fat meal in a two-period crossover design. Cmax (maximum concentration) and AUC (area under serum drug concentration) were significantly increased, and Tmax (time to maximum plasma concentration) was delayed under fed condition, which suggested that simultaneous administration of posaconazole with food may help to achieve higher plasma concentrations and result in better antifungal efficacy.
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Affiliation(s)
- H R Xu
- Department of Clinical Pharmacology, Zhong Shan Hospital, Fudan University, Shanghai, China
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44
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Wang QH, Guo YS, Wang ZD, Du XD, Deng YW. Isolation and characterization of microsatellite DNA loci from the peanut worm, Sipunculus nudus. Genet Mol Res 2012; 11:1662-5. [PMID: 22782585 DOI: 10.4238/2012.june.15.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Sipunculus nudus, the peanut worm, is the best known species in its genus. This unsegmented subtidal marine worm is consumed in some parts of Asia and is also used as fish bait. We found 20 microsatellite DNA markers for S. nudus. The number of alleles per polymorphic locus ranged from two to seven in a sample of 39 individuals. Observed and expected heterozygosities per polymorphic locus varied from 0.103 to 1.000 and from 0.307 to 0.771, respectively. Five loci showed significant departure from Hardy-Weinberg equilibrium after sequential Bonferroni's correction. No significant linkage disequilibrium between pairs of loci was found. These microsatellite markers will provide useful tools for investigating genetic population structure, population history and conservation management of S. nudus.
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Affiliation(s)
- Q H Wang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
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45
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Liu J, Han Q, Shao LB, Wang ZD. Exact solutions for a type of electron pairing model with spin-orbit interactions and Zeeman coupling. Phys Rev Lett 2011; 107:026405. [PMID: 21797629 DOI: 10.1103/physrevlett.107.026405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Indexed: 05/31/2023]
Abstract
A type of electron pairing model with spin-orbit interactions or Zeeman coupling is solved exactly in the framework of the Richardson ansatz. Based on the exact solutions for the case with spin-orbit interactions, it is shown rigorously that the pairing symmetry is of the p + ip wave and the ground state possesses time-reversal symmetry, regardless of the strength of the pairing interaction. Intriguingly, how Majorana fermions can emerge in the system is also elaborated. Exact results are illustrated for two systems, respectively, with spin-orbit interactions and Zeeman coupling.
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Affiliation(s)
- Jia Liu
- Department of Physics and Center of Theoretical and Computational Physics, the University of Hong Kong, Pokfulam Road, Hong Kong, China
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46
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Zhu SL, Shao LB, Wang ZD, Duan LM. Probing non-abelian statistics of Majorana fermions in ultracold atomic superfluid. Phys Rev Lett 2011; 106:100404. [PMID: 21469775 DOI: 10.1103/physrevlett.106.100404] [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] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Indexed: 05/30/2023]
Abstract
We propose an experiment to directly probe the non-abelian statistics of Majorana fermions by braiding them in an s-wave superfluid of ultracold atoms. We show that different orders of braiding operations give orthogonal output states that can be distinguished through Raman spectroscopy. Realization of Majorana states in an s-wave superfluid requires strong spin-orbital coupling and a controllable Zeeman field in the perpendicular direction. We present a simple laser configuration to generate the artificial spin-orbital coupling and the required Zeeman field in the dark-state subspace.
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Affiliation(s)
- Shi-Liang Zhu
- Laboratory of Quantum Information Technology and SPTE, South China Normal University, Guangzhou, China
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47
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Ye F, Chen Y, Wang ZD, Zhang FC. Imbalanced superfluid state in an annular disk. J Phys Condens Matter 2009; 21:355701. [PMID: 21828640 DOI: 10.1088/0953-8984/21/35/355701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The imbalanced superfluid state of spin- 1/2 fermions with s-wave pairing is numerically studied by solving the Bogoliubov-de Gennes equation at zero temperature in an annular disk geometry with narrow radial width. Two distinct types of systems are considered. The first case may be relevant to heavy fermion superconductors, where magnetic field causes spin imbalance via Zeeman interaction and the system is studied in a grand canonical ensemble. As the magnetic field increases, the system is transformed from the uniform superfluid state to the Fulde-Ferrell-Larkin-Ovchinnikov state, and finally to the spin polarized normal state. The second case may be relevant to cold fermionic systems, where the number of fermions of each species is fixed as in a canonical ensemble. In this case, the ground state depends on the pairing strength. For weak pairing, the order parameter exhibits a periodic domain wall lattice pattern with a localized spin distribution at low spin imbalance, and a sinusoidally modulated pattern with extended spin distribution at high spin imbalance. For strong pairing, the phase separation between the superfluid state and polarized normal state is found to be preferable, while the increase of spin imbalance simply changes the ratio between them.
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Affiliation(s)
- Fei Ye
- Center for Advanced Study, Tsinghua University, Beijing 100084, People's Republic of China. Department of Physics and Center for Theoretical and Computational Physics, The University of Hong Kong, Hong Kong, People's Republic of China
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48
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Zhu SL, Zhang DW, Wang ZD. Delocalization of relativistic dirac particles in disordered one-dimensional systems and its implementation with cold atoms. Phys Rev Lett 2009; 102:210403. [PMID: 19519087 DOI: 10.1103/physrevlett.102.210403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Indexed: 05/27/2023]
Abstract
We study theoretically the localization of relativistic particles in disordered one-dimensional chains. It is found that the relativistic particles tend to delocalization in comparison with the nonrelativistic particles with the same disorder strength. More intriguingly, we reveal that the massless Dirac particles are entirely delocalized for any energy due to the inherent chiral symmetry, leading to a well-known result that particles are always localized in one-dimensional systems for arbitrary weak disorders to break down. Furthermore, we propose a feasible scheme to detect the delocalization feature of the Dirac particles with cold atoms in a light-induced gauge field.
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Affiliation(s)
- Shi-Liang Zhu
- Laboratory of Quantum Information Technology, SPTE, South China Normal University, Guangzhou, China
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49
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Yang LX, Zhang Y, Ou HW, Zhao JF, Shen DW, Zhou B, Wei J, Chen F, Xu M, He C, Chen Y, Wang ZD, Wang XF, Wu T, Wu G, Chen XH, Arita M, Shimada K, Taniguchi M, Lu ZY, Xiang T, Feng DL. Electronic structure and unusual exchange splitting in the spin-density-wave state of the BaFe2As2 parent compound of iron-based superconductors. Phys Rev Lett 2009; 102:107002. [PMID: 19392146 DOI: 10.1103/physrevlett.102.107002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2008] [Indexed: 05/27/2023]
Abstract
The magnetic properties in the parent compounds are often intimately related to the microscopic mechanism of superconductivity. Here we report the first direct measurements on the electronic structure of a parent compound of the newly discovered iron-based superconductor, BaFe2As2, which provides a foundation for further studies. We show that the energy of the spin density wave in BaFe2As2 is mainly lowered through exotic exchange splitting of the band structure.
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Affiliation(s)
- L X Yang
- Surface Physics Laboratory (National key laboratory), Physics Department, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
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50
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Peng ZH, Chu HF, Wang ZD, Zheng DN. Implementation of adiabatic geometric gates with superconducting phase qubits. J Phys Condens Matter 2009; 21:045701. [PMID: 21715819 DOI: 10.1088/0953-8984/21/4/045701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present an adiabatic geometric quantum computation strategy based on the non-degenerate energy eigenstates in (but not limited to) superconducting phase qubit systems. The fidelity of the designed quantum gate was evaluated in the presence of simulated thermal fluctuations in a superconducting phase qubits circuit and was found to be quite robust against random errors. In addition, it was elucidated that the Berry phase in the designed adiabatic evolution may be detected directly via the quantum state tomography developed for superconducting qubits. We also analyze the effects of control parameter fluctuations on the experimental detection of the Berry phase.
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Affiliation(s)
- Z H Peng
- National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
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