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Zou M, Bhatia A, Dong H, Jayaprakash P, Guo J, Sahu D, Hou Y, Tsen F, Tong C, O'Brien K, Situ AJ, Schmidt T, Chen M, Ying Q, Ulmer TS, Woodley DT, Li W. Correction: Evolutionarily conserved dual lysine motif determines the non-chaperone function of secreted Hsp90alpha in tumour progression. Oncogene 2024; 43:1397-1398. [PMID: 38575761 PMCID: PMC11065679 DOI: 10.1038/s41388-024-03017-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Affiliation(s)
- M Zou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Endocrinology and Metabolism, and Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - A Bhatia
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - H Dong
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Endocrinology and Metabolism, and Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - P Jayaprakash
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - J Guo
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - D Sahu
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Y Hou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - F Tsen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - C Tong
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - K O'Brien
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A J Situ
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - T Schmidt
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - M Chen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - Q Ying
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - T S Ulmer
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - D T Woodley
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - W Li
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA.
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA.
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Wang S, Jiang X, Zhao B, Dong H. [Semiparametric analysis of nonparametric proportional hazards models with mixed dependent censored data]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:689-696. [PMID: 38708502 DOI: 10.12122/j.issn.1673-4254.2024.04.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To construct a nonparametric proportional hazards (PH) model for mixed informative interval-censored failure time data for predicting the risks in heart transplantation surgeries. METHODS Based on the complexity of mixed informative interval-censored failure time data, we considered the interdependent relationship between failure time process and observation time process, constructed a nonparametric proportional hazards (PH) model to describe the nonlinear relationship between the risk factors and heart transplant surgery risks and proposed a two-step sieve estimation maximum likelihood algorithm. An estimation equation was established to estimate frailty variables using the observation process model. Ⅰ-spline and B-spline were used to approximate the unknown baseline hazard function and nonparametric function, respectively, to obtain the working likelihood function in the sieve space. The partial derivative of the model parameters was used to obtain the scoring equation. The maximum likelihood estimation of the parameters was obtained by solving the scoring equation, and a function curve of the impact of risk factors on the risk of heart transplantation surgery was drawn. RESULTS Simulation experiment suggested that the estimated values obtained by the proposed method were consistent and asymptotically effective under various settings with good fitting effects. Analysis of heart transplant surgery data showed that the donor's age had a positive linear relationship with the surgical risk. The impact of the recipient's age at disease onset increased at first and then stabilized, but increased against at an older age. The donor-recipient age difference had a positive linear relationship with the surgical risk of heart transplantation. CONCLUSION The nonparametric PH model established in this study can be used for predicting the risks in heart transplantation surgery and exploring the functional relationship between the surgery risks and the risk factors.
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Affiliation(s)
- S Wang
- School of Mathematics and Statistics, Changchun University of Technology, Changchun 130000, China
| | - X Jiang
- School of Mathematics and Statistics, Changchun University of Technology, Changchun 130000, China
| | - B Zhao
- School of Mathematics and Statistics, Changchun University of Technology, Changchun 130000, China
| | - H Dong
- School of Mathematics and Statistics, Changchun University of Technology, Changchun 130000, China
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Yin SY, He MX, Xu JJ, Cong WM, Dong H, Wang H. [Hepatic vascular malformation with capillary proliferation: a clinicopathological analysis of four cases]. Zhonghua Bing Li Xue Za Zhi 2024; 53:387-389. [PMID: 38556824 DOI: 10.3760/cma.j.cn112151-20231023-00292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Affiliation(s)
- S Y Yin
- Department of Pathology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - M X He
- Department of Pathology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - J J Xu
- Department of Pathology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - W M Cong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Dong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Wang
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
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Guo Q, Zhong C, Dong H, Cronan JE, Wang H. Diversity in fatty acid elongation enzymes: The FabB long-chain β-ketoacyl-ACP synthase I initiates fatty acid synthesis in Pseudomonas putida F1. J Biol Chem 2024; 300:105600. [PMID: 38335573 PMCID: PMC10869286 DOI: 10.1016/j.jbc.2023.105600] [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: 08/05/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 02/12/2024] Open
Abstract
The condensation of acetyl-CoA with malonyl-acyl carrier protein (ACP) by β-ketoacyl-ACP synthase III (KAS III, FabH) and decarboxylation of malonyl-ACP by malonyl-ACP decarboxylase are the two pathways that initiate bacterial fatty acid synthesis (FAS) in Escherichia coli. In addition to these two routes, we report that Pseudomonas putida F1 β-ketoacyl-ACP synthase I (FabB), in addition to playing a key role in fatty acid elongation, also initiates FAS in vivo. We report that although two P. putida F1 fabH genes (PpfabH1 and PpfabH2) both encode functional KAS III enzymes, neither is essential for growth. PpFabH1 is a canonical KAS III similar to E. coli FabH whereas PpFabH2 catalyzes condensation of malonyl-ACP with short- and medium-chain length acyl-CoAs. Since these two KAS III enzymes are not essential for FAS in P. putida F1, we sought the P. putida initiation enzyme and unexpectedly found that it was FabB, the elongation enzyme of the oxygen-independent unsaturated fatty acid pathway. P. putida FabB decarboxylates malonyl-ACP and condenses the acetyl-ACP product with malonyl-ACP for initiation of FAS. These data show that P. putida FabB, unlike the paradigm E. coli FabB, can catalyze the initiation reaction in FAS.
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Affiliation(s)
- Qiaoqiao Guo
- National Key Laboratory of Green Pesticide, Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Canyao Zhong
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Huijuan Dong
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - John E Cronan
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA; Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
| | - Haihong Wang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China.
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Li S, Dong H, Wang Y, Wang S, Lv X, Dong M, Tian S, Shi J. China Alzheimer's Disease and Neurodegenerative Disorder Research (CANDOR) -A Prospective Cohort Study for Alzheimer's Disease and Vascular Cognitive Impairment. J Prev Alzheimers Dis 2024; 11:214-221. [PMID: 38230734 DOI: 10.14283/jpad.2023.97] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/18/2024]
Abstract
BACKGROUND Alzheimer's disease (AD) and vascular cognitive impairment (VCI) are the two main causes of dementia. AD and VCI share similar symptoms of cognitive decline and may be attributable to similar risk factors. Establishing a prospective cohort to compare VCI and AD would help to understand vascular risk factors related to dementia. OBJECTIVES China Alzheimer's disease and Neurodegenerative Disorder Research (CANDOR) study is a prospective multicenter cohort study. It aims to study the similarities and differences between AD and post stroke cognitive impairment (PSCI) in neuroimaging changes, disease progression, and multiple omics studies. DESIGN This is an ongoing study. From July 31, 2019, to August 1, 2022, we recruited 1449 participants with ages between 40 and 100 years. The cohort included three groups: AD group, PSCI group, and normal cognitive (NC) group. Data were collected in face-to-face interviews at baseline, and will be followed up every year for 4 years. The PSCI group had additional follow-ups at 3-month and 6-month after enrollment. Brain Magnetic Resonance Imaging (MRI) included high-resolution sequences for intracranial arteries. Cognitive assessments and follow-up information will be prospectively collected. Biological specimens including blood and urine at baseline were collected and tested. PARTICIPANTS The targeted sample size of PSCI group was 500, AD group with 600 and NC group with 2000. There were 1449 participants enrolled. Include 508 participants were in NC group, 387 in AD group and 554 in PSCI group. MEASUREMENTS Demographics, clinical parameters, and medical examinations were collected and performed. Cognitive assessment was performed to assess all cognitive domains including memory, language, executive function, and orientation function. CONCLUSIONS The CANDOR study is a prospective cohort study. Data from this cohort provide us an opportunity to investigate the contribution of vascular factors to dementia pathogenesis.
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Affiliation(s)
- S Li
- Jiong Shi, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No. 119, South Fourth Ring West Road, Fengtai District, Beijing 100070, People's Republic of China, Tel +86-10-59978350, Fax +86-10-59973383, Email
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Zhang L, Dong H. [Clonal hematopoiesis and its evolution of myeloproliferative neoplasms]. Zhonghua Yi Xue Za Zhi 2023; 103:3608-3614. [PMID: 38018059 DOI: 10.3760/cma.j.cn112137-20230710-00001] [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: 11/30/2023]
Abstract
The mutations of myeloproliferative neoplasma (MPN) mainly include driver mutations and non-driver mutations. The driver mutations mainly include JAK2 mutations, CALR mutations and MPL mutations and non-driver mutations mainly include ASXL1, DNMT3A, TET2, SF3B1, EZH2, TP53, SRSF2, USAF1, etc. Driver and non-driver mutations and their clonal evolution affect the thrombosis and disease transformation of MPN. Clonal hematopoiesis of MPN can occur decades before diagnosis, even in the fetal stage. After the emergence of clonal hematopoiesis, until the emergence and progression of MPN, gene mutation order, inflammation, interferon therapy affect the disease phenotype and clonal hematopoiesis of MPN. Although great progress has been made in the understanding of MPN clonal hematopoiesis and its evolution with the development of next-generation sequencing, there are still many limitations. In this study, we mainly discuss gene mutations of MPN and their influences on the thrombosis, leukemia and fibrosis transformation, and the influencing factors of clonal evolution, aiming to summarize the influence of clonal hematopoiesis and its evolution on the complications, prognosis and survival of MPN.
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Affiliation(s)
- L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin 300020, China
| | - H Dong
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin 300020, China
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Mu G, Dong H, Sun T, Grattan KTV, Wu Z, Zhao J. A switching method for traveling/standing wave transportation modes in two-dimensional acoustic fields using a dual-transducer support structure. Ultrason Sonochem 2023; 101:106724. [PMID: 38100894 PMCID: PMC10762448 DOI: 10.1016/j.ultsonch.2023.106724] [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] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/24/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
The dual-transducer support structure discussed has the advantages of a simple structure and low cost, as well as allowing for the use of both Traveling-Wave (TW) and Standing-Wave (SW) acoustic transportation, supporting its use in pharmaceutical and biochemical analysis, for example. By adjusting the distance between the vibrating plate and the reflector which forms SW field in the y direction, the control of the position of the SW nodes or the TW component along the x direction allows the formation of a Two-Dimensional Standing Wave (2D-SW) or a Traveling Wave (TW) acoustic field, and these could be used for transportation in the x direction. It has been found that the x position of the SW nodes can be adjusted through changing the temporal phase shift, θ, which permits multiple objects to be transported using the 2D-SW mode. By comparison, TWs in the opposite direction could be generated at a pair of specific temporal phase shifts, allowing fast transportation using the TW mode. In this research work, an experiment has been carried out to transport polystyrene spheres using the two modes by programming the temporal phase shift, θ, this illustrating that precise position control of the multiple objects transported was possible using the 2D-SW mode, while high-speed transportation (up to 540 mm/s) was realized using the TW mode, showing that the dual-transducer support structure could be used effectively for accurate and fast transportation. As a fully non-contact method, the dual-transducer support structure can be seen to work in the 2D-SW mode for reaction synthesis or detection applications, and also in TW mode for rapid sample transportation applications.
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Affiliation(s)
- Guanyu Mu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
| | - Huijuan Dong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
| | - Tong Sun
- School of Science & Technology, City, University of London, London EC1V 0HB, United Kingdom
| | - Kenneth T V Grattan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China; School of Science & Technology, City, University of London, London EC1V 0HB, United Kingdom
| | - Zhiguang Wu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
| | - Jie Zhao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
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Wang H, Yin SY, Cong WM, Dong H. [Hepatic vascular tumor with small vessel neoplasm components: a clinicopathological analysis of six cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1163-1165. [PMID: 37899326 DOI: 10.3760/cma.j.cn112151-20230327-00223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Affiliation(s)
- H Wang
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - S Y Yin
- Department of Pathology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - W M Cong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Dong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
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Mu G, Qiao Y, Sui M, Grattan KTV, Dong H, Zhao J. Acoustic-propelled micro/nanomotors and nanoparticles for biomedical research, diagnosis, and therapeutic applications. Front Bioeng Biotechnol 2023; 11:1276485. [PMID: 37929199 PMCID: PMC10621749 DOI: 10.3389/fbioe.2023.1276485] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Acoustic manipulation techniques have gained significant attention across various fields, particularly in medical diagnosis and biochemical research, due to their biocompatibility and non-contact operation. In this article, we review the broad range of biomedical applications of micro/nano-motors that use acoustic manipulation methods, with a specific focus on cell manipulation, targeted drug release for cancer treatment and genetic disease diagnosis. These applications are facilitated by acoustic-propelled micro/nano-motors and nanoparticles which are manipulated by acoustic tweezers. Acoustic systems enable high precision positioning and can be effectively combined with magnetic manipulation techniques. Furthermore, acoustic propulsion facilitates faster transportation speeds, making it suitable for tasks in blood flow, allowing for precise positioning and in-body manipulation of cells, microprobes, and drugs. By summarizing and understanding these acoustic manipulation methods, this review aims to provide a summary and discussion of the acoustic manipulation methods for biomedical research, diagnostic, and therapeutic applications.
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Affiliation(s)
- Guanyu Mu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
| | - Yu Qiao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
| | - Mingyang Sui
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
| | - Kenneth T. V. Grattan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
- School of Science and Technology, University of London, London, United Kingdom
| | - Huijuan Dong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
| | - Jie Zhao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
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Wang H, Yu H, Zhou YY, Cong WM, Dong H. [Combined hepatocellular-cholangiocarcinoma containing both large and small duct type cholangiocarcinoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1047-1049. [PMID: 37805401 DOI: 10.3760/cma.j.cn112151-20230110-00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Affiliation(s)
- H Wang
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Yu
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - Y Y Zhou
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - W M Cong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Dong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
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Dong H, Cronan JE. Suppressor mutants demonstrate the metabolic plasticity of unsaturated fatty acid synthesis in Pseudomonas aeruginosa PAO1. Microbiology (Reading) 2023; 169:001400. [PMID: 37818937 PMCID: PMC10634369 DOI: 10.1099/mic.0.001400] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
Pseudomonas aeruginosa PAO1 has two aerobic pathways for synthesis of unsaturated fatty acids (UFAs), DesA and DesB plus the oxygen independent FabAB pathway. The DesA desaturase acts on saturated acyl chains of membrane phospholipid bilayers whereas the substrates of the DesB desaturase are thought to be long chain saturated acyl-CoA thioesters derived from exogeneous saturated fatty acids that are required to support DesB-dependent growth. Under suitable aerobic conditions either of these membrane-bound desaturates can support growth of P. aeruginosa ∆fabA strains lacking the oxygen independent FabAB pathway. We previously studied function of the desA desaturase of P. putida in a P. aeruginosa ∆fabA ∆desA strain that required supplementation with a UFA for growth and noted bypass suppression of the P. aeruginosa ∆fabA ∆desA strain that restored UFA synthesis. We report three genes encoding lipid metabolism proteins that give rise to suppressor strains that bypass loss of the DesA and oxygen independent FabAB pathways.
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Affiliation(s)
- Huijuan Dong
- Departments of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - John E. Cronan
- Departments of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Departments of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Meng Z, Li P, Yang D, Dong H, Li R, Wang S, Chen X, Huang H, Kang M. The Feasibility of Level Ib Sparing Intensity Modulated Radiation Therapy in Nasopharyngeal Carcinoma Patients with High-Risk Factors: Based on International Guideline. Int J Radiat Oncol Biol Phys 2023; 117:e606-e607. [PMID: 37785826 DOI: 10.1016/j.ijrobp.2023.06.1976] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In spite of the rarity of level Ib recurrence after intensity-modulated radiation therapy, the International Guideline (IG) provides the risk factors for prophylactic coverage. In practice, however, there are significant differences between institutions. The purpose of this study is to examine the feasibility of sparing level Ib IMRT in NPC patients with high-risk factors based on IG. MATERIALS/METHODS From January 2014 to October 2017, newly-diagnostic, non-metastatic NPC patients in our center were retrospectively reviewed. According to the risk factors of prophylactic level Ib coverage in patients with negative level Ib recommended by IG, the characteristics of pre-treatment MRI were analyzed. Four high-risk factors were identified: a. involvement of the structures that drain to level Ib as first echelon (FES), including anterior half of nasal cavity, oral cavity, b. involvement of submandibular gland (SMG), c. with radiologic extranodal extension (rENE) in level II LNs, or d. maximal axial diameter (MAD)≧2 cm in level II LNs. Patients with risk factors were divided into Cohort A (with risk factors a), Cohort B (with risk factor b, but without a), and Cohort C (only with risk factors c and/or d). Recurrence rates of level Ib and regional relapse-free survival (RRFS) rates were evaluated in different cohorts. RESULTS A total of 961 patients were finally included. Thirty-six cases (3.7%) presented with radiologically positive level Ib metastasis. For the other patients with negative Ib LNs, there were 18, 65, 421, and 444 cases classified as FES involvement, SMG involvement, level II LNs with rENE, and level II nodal with MAD ≧2 cm. Excluding overlap, a total of 571 patients with risk factors were divided into three groups: Cohort A (n = 18), Cohort B (n = 49) and Cohort C (n = 504). Nine patients (9/961, 0.94%) developed level Ib recurrence. Except for 1 patient with positive Ib LNs at diagnosis, 2 did not meet any of the risk factors, while the other six (6/9, 66.7%) met at least one risk factor. The rate of recurrence at neck level Ib was highest in Cohort A (11.1%, 2/18; Ib-sparing group: 0/10, 0.0% vs Ib-covering group: 2/8, 25.0%; P = 0.183). In Cohort B, no cases were found with level Ib recurrence (0.0%, 0/49). In Cohort C, the rates were rare (0.8%, 4/504) in both groups (0.7%, 2/276 vs 0.9%, 2/228; P > 0.999). Among the three Cohorts, there were no significant differences in 5-year RRFS between two groups, which were 90.0% vs 62.5% (p = 0.248), 90.9% vs 92.0% (p = 0.905), and 92.6% vs 90.1% (p = 0.445), respectively. Among patients with high-risk factors, the incidence of grade 3-4 late dry mouth symptom was higher in the level Ib-covering group (3.1% vs 7.5%, P = 0.033). CONCLUSION Level Ib sparing appears safe and feasible for NPC patients with negative level Ib LNs, even if combined with risk factors: SMG involvement, and/or level II with rENE, and/or level II MAD ≧2 cm. Level Ib-sparing irradiation reduces dry mouth symptoms compared with level Ib-irradiation.
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Affiliation(s)
- Z Meng
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Department of Oncology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, China
| | - P Li
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; The First Affiliated Hospital, Department of Oncology Radiotherapy, Hengyang Medical School, University of South China, Hengyang, China
| | - D Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi, China
| | - H Dong
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; The Second People's Hospital of Yichang, Yichang, China
| | - R Li
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - S Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Oncology Department, The Third Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - X Chen
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, China
| | - H Huang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, China
| | - M Kang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, China
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Ebner DK, Evans JM, Christensen B, Breinholt J, Gamez ME, Lester SC, Routman DM, Ma DJ, Price K, Dong H, Park SS, Chintakuntlawar AV, Neben-Wittich MA, McGee LA, Garces Y, Patel SH, Foote RL, Evans JD. Unique T-cell Sub-Population Shifts after SBPT and Nivolumab in Platinum Refractory HNC: Biomarker Correlates from ROR1771. Int J Radiat Oncol Biol Phys 2023; 117:e580. [PMID: 37785763 DOI: 10.1016/j.ijrobp.2023.06.1920] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) ROR1771 was a clinical trial investigating the use of stereotactic body proton radiotherapy (SBPT) and nivolumab in recurrent platinum refractory head and neck squamous cell carcinoma (HNSCC). The planned analysis of T-cell subpopulation and biomarker response is herein presented. MATERIALS/METHODS Patients with metastatic histologically confirmed HNSCC from any primary site received 2 cycles of nivolumab followed by SBPT to 1-2 selected target lesion(s) (hilar/lung: 8 of 12 patients), followed by maintenance nivolumab. Peripheral blood mononuclear cells were isolated pre-/post-treatment. Flow cytometry identified T-cell subpopulations. Single Cell 5' Gene Expression (GEX) and V(D)J T Cell Receptor libraries were prepared using Single Cell Immune Profiling. Seurat (v4.1.1) was used to identify cell type clusters, and differential expression post-filtration was evaluated using the Wilcoxon Rank Sum test. RESULTS A total of 12 patients were eligible for analysis, with one alive at time of analysis, 52 months from start of treatment. Median overall survival here was 12.5 months vs. 7.5-months on CheckMate 141. SBPT ranged from 35-50 Gy. Sequential changes in T-cell populations from baseline were noted with initiation of nivolumab, driving decrease in tumor-reactive (TTR; CD11ahighPD1+CD8+), central memory (TCM; CCR7+CD45RA-), and effector T-cells (TEF; CCR7-CD45RA-). TTR and TCM increased following SBPT, with greatest increase (3.5x TTR and 5.2x TCM) in the surviving patient. An average of 68 genes with significant differential expression between timepoints (p<0.0001) demonstrated RNA gene expression changes across all cell subtypes, including ribosomal (RPL and RPS) genes, ACTB, FTL, MALAT1, and others. This averaged 113 genes across all timepoints in the surviving patient, with peak following nivolumab induction. On T-cell receptor (TCR) analysis of this patient, the predominant clonotype diversity changed substantially following nivolumab. Following SBPT, clonotype diversity again changed to include a milieu seen neither at baseline nor with nivolumab alone. These TCRs persisted for approximately 2 weeks following SBPT before returning to resemble the nivolumab-induced TCR diversity alone, coinciding with disease recurrence. CONCLUSION ROR1771 demonstrated overall survival favorably comparable to CheckMate 141. Biomarker analysis of peripheral blood samples demonstrated significant shifts in T-cell subpopulations and underlying gene expression to nivolumab and then to SBPT administration. SBPT to a target lesion changed TCR clonotypes within the peripheral blood beyond those seen with nivolumab administration, with fading of these TCR clonotypes coinciding with recurrence. SBPT in combination with nivolumab may drive systemic immunologic change above that induced by nivolumab alone and warrants further investigation.
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Affiliation(s)
- D K Ebner
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - J M Evans
- Intermountain Precision Genomics, St George, UT
| | | | - J Breinholt
- Intermountain Precision Genomics, St George, UT
| | - M E Gamez
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - S C Lester
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - D M Routman
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - D J Ma
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - K Price
- Department of Medical Oncology, Mayo Clinic, Rochester, MN
| | - H Dong
- Department of Urology and Immunology, Mayo Clinic, Rochester, MN
| | - S S Park
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | | | | | - L A McGee
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ
| | - Y Garces
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - S H Patel
- Department of Radiation Oncology, Mayo Clinic Arizona, Phoenix, AZ
| | - R L Foote
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - J D Evans
- Department of Radiation Oncology, Intermountain Healthcare, Murray, UT
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Liang H, Dong H, Zhang C, Geng Y, Liu X, Liu G, Zhong C. Combining LCA-MFA models to identify China's plastic value chain environmental impact mitigation pathways. iScience 2023; 26:107701. [PMID: 37694146 PMCID: PMC10483054 DOI: 10.1016/j.isci.2023.107701] [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] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 07/31/2023] [Accepted: 08/17/2023] [Indexed: 09/12/2023] Open
Abstract
Characterizing material flows and environmental impacts of plastic value chain is crucial for sustainable plastic management. Here, we combine material flow analysis and life cycle assessment methods to map the flows of eight major plastics and investigate the multiple environmental impacts of China's plastic value chain. We find that packaging and textile sectors dominate plastic consumption and are responsible for the value chain environmental burdens, but with low recycling rates. Major environmental impacts are generated in plastic production and product manufacturing stages because of the consumption of coal-based feedstocks and electricity. We therefore set up six scenarios by considering carbon neutrality energy pathway, plastic recycling improvement, and technology updating, finding that the value chain environmental impact can be reduced by 14%-57% in 2060 under combined scenario. Particularly, carbon neutrality renewable energy pathway plays an important role. These findings provide valuable insights to identify key mitigation pathways for plastic value chain.
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Affiliation(s)
- Hongda Liang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huijuan Dong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chenyi Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong Geng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai 200240, China
- School of International and Public Affairs, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Xiao Liu
- China Institute for Urban Governance, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Gang Liu
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Chen Zhong
- School of International and Public Affairs, Shanghai Jiao Tong University, Shanghai 200030, China
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15
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Wei R, Liu Y, Dong H, Zhu Y, Zhao J. A Graph-Based Hybrid Reconfiguration Deformation Planning for Modular Robots. Sensors (Basel) 2023; 23:7892. [PMID: 37765949 PMCID: PMC10534630 DOI: 10.3390/s23187892] [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] [Received: 08/12/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
The self-reconfigurable modular robotic system is a class of robots that can alter its configuration by rearranging the connectivity of their component modular units. The reconfiguration deformation planning problem is to find a sequence of reconfiguration actions to transform one reconfiguration into another. In this paper, a hybrid reconfiguration deformation planning algorithm for modular robots is presented to enable reconfiguration between initial and goal configurations. A hybrid algorithm is developed to decompose the configuration into subconfigurations with maximum commonality and implement distributed dynamic mapping of free vertices. The module mapping relationship between the initial and target configurations is then utilized to generate reconfiguration actions. Simulation and experiment results verify the effectiveness of the proposed algorithm.
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Affiliation(s)
- Ruopeng Wei
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
| | - Yubin Liu
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
| | - Huijuan Dong
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
| | - Yanhe Zhu
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
| | - Jie Zhao
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
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Zou Q, Dong H, Cronan JE. Growth of Enterococcus faecalis ∆ plsX strains is restored by increased saturated fatty acid synthesis. mSphere 2023; 8:e0012023. [PMID: 37289195 PMCID: PMC10449490 DOI: 10.1128/msphere.00120-23] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/07/2023] [Indexed: 06/09/2023] Open
Abstract
The Enterococcus faecalis acyl-acyl carrier protein (ACP) phosphate acyltransferase PlsX plays an important role in phospholipid synthesis and exogenous fatty acid incorporation. Loss of plsX almost completely blocks growth by decreasing de novo phospholipid synthesis, which leads to abnormally long-chain acyl chains in the cell membrane phospholipids. The ∆plsX strain failed to grow without supplementation with an appropriate exogenous fatty acid. Introduction of a ∆fabT mutation into the ∆plsX strain to increase fatty acid synthesis allowed very weak growth. The ∆plsX strain accumulated suppressor mutants. One of these encoded a truncated β-ketoacyl-ACP synthase II (FabO) which restored normal growth and restored de novo phospholipid acyl chain synthesis by increasing saturated acyl-ACP synthesis. Saturated acyl-ACPs are cleaved by a thioesterase to provide free fatty acids for conversion to acyl-phosphates by the FakAB system. The acyl-phosphates are incorporated into position sn1 of the phospholipids by PlsY. We report the tesE gene encodes a thioesterase that can provide free fatty acids. However, we were unable to delete the chromosomal tesE gene to confirm that it is the responsible enzyme. TesE readily cleaves unsaturated acyl-ACPs, whereas saturated acyl-ACPs are cleaved much more slowly. Overexpression of an E. faecalis enoyl-ACP reductase either FabK or FabI which results in high levels of saturated fatty acid synthesis also restored the growth of the ∆plsX strain. The ∆plsX strain grew faster in the presence of palmitic acid than in the presence of oleic acid with improvement in phospholipid acyl chain synthesis. Positional analysis of the acyl chain distribution in the phospholipids showed that saturated acyl chains dominate the sn1-position indicating a preference for saturated fatty acids at this position. High-level production of saturated acyl-ACPs is required to offset the marked preference of the TesE thioesterase for unsaturated acyl-ACPs and allow the initiation of phospholipid synthesis.
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Affiliation(s)
- Qi Zou
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Huijuan Dong
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - John E. Cronan
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Yang SR, Huang L, Dong H, Liu D, Yang Z, Chen SJ, Lin GZ, Wang BG, Yang J. [Association between volatile organic compounds and mortality risk of stroke]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1216-1223. [PMID: 37661612 DOI: 10.3760/cma.j.cn112338-20221031-00930] [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: 09/05/2023]
Abstract
Objective: To investigate the effect of volatile organic compounds (VOCs) exposure in the atmosphere on the risk of daily death from stroke in Guangzhou. Methods: Daily average concentrations of twelve atmospheric VOCs, meteorological factors, and daily deaths for stroke and its subtypes (including ischemic and hemorrhagic stroke) in Guangzhou from 2020 to 2021 were collected. The time-series Poisson generalized additive model was established to analyze the relationship between daily average concentrations of atmospheric VOCs and daily mortality from a stroke on different lag days. The season, gender, and age group further performed stratification analysis. Results: Toluene and n-pentane were associated with a higher mortality risk from stroke and its subtypes. For each interquartile range (IQR) increment in toluene concentration at lag0- 1 days, the RRs for mortality from stroke and hemorrhagic stroke were 1.060 (95%CI: 1.036-1.085) and 1.071 (95%CI: 1.030-1.113), respectively. For each IQR increment in n-pentane concentration, the RR for mortality from ischemic stroke was 1.064 (95%CI: 1.030-1.099). The effect estimates of VOCs may be higher during the cold season and among women and people aged ≥75 years. For each IQR increment in toluene concentration, the RRs for mortality risk of stroke in the cold season and women were 1.099 (95%CI: 1.056-1.143) and 1.085 (95%CI: 1.050-1.120), respectively. For n-pentane, the RR for death risk of stroke in people aged ≥75 years old was 1.072 (95%CI: 1.036-1.109). Results of sensitivity analysis showed that the effect estimates fluctuated less when PM2.5 and O3 were separately introduced for the two-pollutant model, as well as changing the degrees of freedom for covariates. Conclusions: This study suggests that VOCs may be an independent risk factor for daily mortality from stroke. Moreover, Toluene presented the most significant health impact.
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Affiliation(s)
- S R Yang
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - L Huang
- Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
| | - H Dong
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - D Liu
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - Z Yang
- School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - S J Chen
- Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
| | - G Z Lin
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - B G Wang
- Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
| | - J Yang
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
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Guo Q, Sun Q, Bian X, Wang M, Dong H, Yin H, Dai X, Fan G, Chen G. Development and validation of a multiphase CT radiomics nomogram for the preoperative prediction of lymphovascular invasion in patients with gastric cancer. Clin Radiol 2023; 78:e552-e559. [PMID: 37117048 DOI: 10.1016/j.crad.2023.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 03/13/2023] [Accepted: 03/22/2023] [Indexed: 04/30/2023]
Abstract
AIM To develop a nomogram to predict lymphovascular invasion (LVI) in gastric cancer by integrating multiphase computed tomography (CT) radiomics and clinical risk factors. MATERIALS AND METHODS One hundred and seventy-two gastric cancer patients (121 training and 51 validation) with preoperative contrast-enhanced CT images and clinicopathological data were collected retrospectively. The clinical risk factors were selected by univariate and multivariate regression analysis. Radiomic features were extracted and selected from the arterial phase (AP), venous phase (VP), and delayed phase (DP) CT images of each patient. Clinical risk factors, radiomic features, and integration of both were used to develop the clinical model, radiomic models, and nomogram, respectively. RESULTS Radiomic features from AP (n=6), VP (n=6), DP (n=7) CT images and three selected clinical risk factors were used for model development. The nomogram showed better performance than the AP, VP, DP, and clinical models in the training and validation datasets, providing areas under the curves (AUCs) of 0.890 (95% CI: 0.820-0.940) and 0.885 (95% CI:0.765-0.957), respectively. All models indicated good calibration, and decision curve analysis proved that the net benefit of the nomogram was superior to that of the clinical and radiomic models throughout the vast majority of the threshold probabilities. CONCLUSIONS The nomogram integrating multiphase CT radiomics and clinical risk factors showed favourable performance in predicting LVI of gastric cancer, which may benefit clinical practice.
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Affiliation(s)
- Q Guo
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - Q Sun
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - X Bian
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - M Wang
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - H Dong
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - H Yin
- Institute of Advanced Research, Beijing Infervision Technology Co., Ltd, Beijing, China
| | - X Dai
- Department of Pathology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - G Fan
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - G Chen
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China.
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Li XT, Yao Y, Zheng RJ, Deng ZR, Dong H, Lu XB. [Analysis of curative effect and short-term survival rate of plasma exchange and double plasma molecular adsorption combined with half-volume plasma exchange in the treatment of liver failure]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:736-741. [PMID: 37580257 DOI: 10.3760/cma.j.cn501113-20230228-00083] [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] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Objective: To investigate how plasma exchange (PE) and double plasma molecular adsorption combined with half-volume plasma exchange (DPMAS + half-volume PE) affect the curative effect and short-term survival rate in liver failure. Methods: Data from 181 cases of liver failure caused by different etiologies from January 1, 2017 to September 31, 2020, were selected. Patients were divided into a PE treatment alone group and a DPMAS + half-dose PE treatment group. The laboratory indicators with different models of artificial liver before and after treatment and the survival rates of 7, 14, 28, and 90 days after discharge were observed in the two groups. Measurement data were analyzed by t-tests and rank sum tests. Categorical data were analyzed by χ (2) test. Results: Non-biological artificial liver therapy with different models improved the liver and coagulation function in the two groups of patients with liver failure (P < 0.05 in PTA% intra-group). The coagulation function was significantly improved in the PE treatment alone group compared with that in the DPMAS + half-dose PE group [PT after treatment: (20.15 ± 0.88) s in the PE treatment alone group, (23.43 ± 1.02) s, t = -2.44, P = 0.016 in the DPMAS+half-dose PE group; PTA: 44.72% ± 1.75% in the PE treatment alone group, 35.62% ± 2.25%, t = 3.215 P = 0.002 in the DPMAS + half-dose PE group]. Bilirubin levels were significantly decreased in the DPMAS+half-dose PE group compared to the PE treatment alone group [total bilirubin after treatment: (255.30 ± 15.64) μmol/L in the PE treatment alone group, (205.46 ± 9.03) μmol/L, t = 2.74, P = 0.07 in the DPMAS + half-dose PE group; direct bilirubin after treatment: (114.74 ± 7.11) μmol/L in the PE treatment alone group, (55.33 ± 3.18) μmol/L, t = 7.54, P < 0.001) in the DPMAS + half-dose PE group]. However, there was no significant effect on leukocytes and neutrophils after treatment with different models of artificial liver (P > 0.05) in the two groups, and platelets decreased after treatment, with no statistically significant difference between the groups (t = -0.15, P = 0.882). The inflammatory indexes of the two groups improved after treatment with different models of artificial liver (P < 0.05], and the 28 and 90 d survival rates were higher in the DPMAS+half-dose PE group than those of the PE treatment alone group (28 d: 60.3% vs. 75.0%, χ (2) = 4.315, P = 0.038; 90 d: 56.2% vs. 72.5%. χ (2) = 10.355 P < 0.001). DPMAS + half-dose PE group plasma saving was 1385 ml compared with PE treatment alone group (Z = -7.608, P < 0.05). Conclusion: Both DPMAS+half-dose PE and PE treatment alone have a certain curative effect on patients with liver failure. In DPMAS+half-dose PE, the 28-day survival rate is superior to PE treatment alone, and it saves plasma consumption and minimizes blood use in clinic.
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Affiliation(s)
- X T Li
- Infection and Liver Disease Center of the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Infectious Disease (Viral Hepatitis) Clinical Medical Research Center, Urumqi 830000, China
| | - Y Yao
- Infection and Liver Disease Center of the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Infectious Disease (Viral Hepatitis) Clinical Medical Research Center, Urumqi 830000, China
| | - R J Zheng
- Infection and Liver Disease Center of the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Infectious Disease (Viral Hepatitis) Clinical Medical Research Center, Urumqi 830000, China
| | - Z R Deng
- Infection and Liver Disease Center of the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Infectious Disease (Viral Hepatitis) Clinical Medical Research Center, Urumqi 830000, China
| | - H Dong
- Infection and Liver Disease Center of the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Infectious Disease (Viral Hepatitis) Clinical Medical Research Center, Urumqi 830000, China
| | - X B Lu
- Infection and Liver Disease Center of the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Infectious Disease (Viral Hepatitis) Clinical Medical Research Center, Urumqi 830000, China
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Zhou YY, Wang H, Xian ZH, Cong WM, Dong H. [Analysis of clinicopathological features of 18 cases of hepatic angiosarcoma]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:729-735. [PMID: 37580256 DOI: 10.3760/cma.j.cn501113-20220224-00088] [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] [Indexed: 08/16/2023]
Abstract
Objective: To investigate the clinicopathological features, treatment, and prognosis of hepatic angiosarcoma. Methods: Clinicopathological data and prognostic conditions of 18 cases with hepatic angiosarcoma were collected retrospectively. The recurrence-free survival rate and overall survival rate were calculated by the Kaplan-Meier method. A Cox regression analysis was used to explore the survival-related risk factors. Results: There were 12 male and 6 female patients, with an average age of 57 (37 ~ 70) years. The tumor's average diameter was 8.40 (2.00 ~ 18.00) cm. Seven cases had multiple tumors, while two cases had large vessel tumor thrombuses. Microscopically, the tumor tissues were irregularly anastomosed, with vascular lacunar or solid bundle-like weaving, and the tissue morphology mimicked capillary hemangioma, cavernous hemangioma, or angioepithelioma, while tumor cells were spindle-shaped or epithelioid, lined with hobnails in the lumen, or formed papillary structures in the lumen. The proportion of highly, moderately, and poorly differentiated tumors was 4:8:6, with six cases having clear tumor boundaries, eight having microvascular tumor thrombi, and sixteen having blood lake formation. Different levels of expression of CD31, CD34, erythroblast transformation-specific related genes, and Fli-1 markers were demonstrated in all of the cases. Four cases had a P53 mutation, and six cases had Ki-67 > 10%. During the follow-up period of 0.23-114.20 months, the five-year recurrence-free survival rate and overall survival rate were 16.7% and 37.2%, respectively. Cox regression multivariate analysis showed that preoperative symptoms and multiple tumors were significant risk factors for recurrence-free survival, while preoperative symptoms and Ki-67 > 10% were significant risk factors for overall survival. Conclusion: Hepatic angiosarcoma is a rare hepatic mesenchymal tumor with high malignancy and a poor prognosis. Pathological morphology and immunohistochemical marker combinations are needed for a definite diagnosis. However, the complexity of angiosarcomas' histological and cytological conformations and the overlap of pathological features with benign vascular tumors, sarcomas, and carcinomas pose difficulties in the differential diagnosis. Thus, the only effective ways to prolong survival are early detection and radical surgical resection.
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Affiliation(s)
- Y Y Zhou
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Wang
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - Z H Xian
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - W M Cong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
| | - H Dong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200438, China
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Song Z, Dong H, Ma N, Ren Y, Jiang B. [Value of Improved Mayo Endoscopic Score for evaluating treatment efficacy for active ulcerative colitis]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:1204-1213. [PMID: 37488803 PMCID: PMC10366518 DOI: 10.12122/j.issn.1673-4254.2023.07.17] [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: 07/26/2023]
Abstract
OBJECTIVE To assess the value of Improved Mayo Endoscopic Score (IMES) for evaluation of treatment efficacy for active ulcerative colitis (UC). METHODS We retrospectively analyzed the clinical and endoscopic data of 103 patients diagnosed with active UC in Beijing Tsinghua Changgung Hospital from January, 2015 to December, 2020. The severity of endoscopic lesions was determined by Mayo Endoscopic Score and the Ulcerative Colitis Endoscopic Index of Severity (UCEIS), and the area of the endoscopic lesions was evaluated based on the Montreal classification system. The IMES was established by combining the MES with the Montreal classification. RESULTS Univariate analysis suggested that young patients (<40 years old), patients with extensive disease type (E3), patients with high endoscopic scores (MES=3, UCEIS>4, and IMES>4), and patients receiving advanced drug therapy (with systemic hormones, immunosuppressants, immunomodulators, and biological agents, etc.) had lower clinical and endoscopic remission rates. COX survival analysis showed that IMES≤4 was an independent risk factor for clinical and endoscopic remission. ROC curve indicated that the predictive value of IMSE≤4 for clinical and endoscopic remission (AUC=0.7793 and 0.7095, respectively; P<0.01) was better than that of Montreal (AUC=0.7357 and 0.6847, respectively; P<0.01), MES=2 (AUC=0.6671 and 0.5929, respectively; P<0.01), and UCEIS≤4 (AUC=0.6823 and 0.6459, respectively; P<0.01); IMES=5 had a better predictive value for patients with active UC undergoing colectomy tham E3 and MES=3. CONCLUSION IMES has good value in evaluating treatment efficacy for active UC.
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Affiliation(s)
- Z Song
- Department of Gastroenterology, Yulin First Hospital, Yulin 719000, China
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - H Dong
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - N Ma
- Department of Gastroenterology, Yulin First Hospital, Yulin 719000, China
| | - Y Ren
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - B Jiang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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22
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Song W, Hou YJ, Dong H, Zhu P, Feng ZH. [A case of digital technique aided immediate implant and prosthetics with penetration of impacted tooth]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:684-687. [PMID: 37400199 DOI: 10.3760/cma.j.cn112144-20221120-00585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Affiliation(s)
- W Song
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Y J Hou
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - H Dong
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - P Zhu
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Z H Feng
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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23
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Yang XT, Luo ZZ, Huang JP, Sun WY, Zheng Y, Yin RC, Dong H, Yu HH, Pang M, Jiang X. Enhancement of blue and ultraviolet components in PCF-based supercontinuum generation through inter-modal dispersive-wave radiation. Opt Lett 2023; 48:3255-3258. [PMID: 37319075 DOI: 10.1364/ol.488134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
Broadband supercontinuum (SC) light sources generated through nonlinear effects in solid-core photonic crystal fibers (PCFs) have been widely used in spectroscopy, metrology, and microscopy, leading to great application successes. The short-wavelength extension of such SC sources, a longstanding challenge, has been the subject of intensive study over the past two decades. However, the exact mechanism of blue and ultraviolet light generation, especially for some resonance spectral peaks in the short-wavelength regime, is not yet fully understood. Here, we demonstrate that the effect of inter-modal dispersive-wave radiation, which results from phase matching between pump pulses at the fundamental optical mode and packets of linear waves at some higher-order modes (HOMs) propagating in the PCF core, might be one of the critical mechanisms that can result in some resonance spectral components with wavelengths much shorter than that of the pump light. We observed in an experiment that several spectral peaks resided in the blue and ultraviolet regimes of the SC spectrum, whose central wavelengths can be tuned by varying the PCF-core diameter. These experimental results can be interpreted well using the inter-modal phase-matching theory, providing some useful insights into the SC generation process.
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Feng ZH, Zhong S, Zhang X, Dong H, Feng Y, Xie R, Bai SZ, Fang XM, Zhu P, Yan M, Zhao YM. [Exploration of making removable partial denture by digital technology]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:354-358. [PMID: 37005782 DOI: 10.3760/cma.j.cn112144-20221206-00604] [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: 04/04/2023]
Abstract
To explore the digital manufacturing process of distal extension removable partial denture. From November 2021 to December 2022, 12 patients (7 males and 5 females) with free-ending situation were selected from the Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University. Three-dimensional model of the relationship between alveolar ridge and jaw position was obtained by intraoral scanning technique. After routine design, manufacturing and try-in of metal framework for removable partial denture, the metal framework was located in the mouth and scanned again to obtain the composite model of dentition, alveolar ridge and metal framework. The free-end modified model is obtained by merging the digital model of free-end alveolar ridge with the virtual model with the metal framework. The three-dimensional model of artificial dentition, and base plate was designed on the free-end modified model, and the resin model were made by digital milling technology. The removable partial denture was made by accurately positioning the artificial dentition and base plate, bonding metal framework with injection resin, grinding and polishing the artificial dentition and resin base. Compared with the design data after clinical trial, the results showed that there was an error of 0.4-1.0 mm and an error of 0.03-0.10 mm in the connection between the resin base of artificial dentition and the connecting rod of the in-place bolt and the connection between artificial dentition and resin base. After denturen delivery, only 2 patients needed grinding adjustment in follow-up visit due to tenderness, and the rest patients did not find any discomfort. The digital fabrication process of removable partial denture used in this study can basically solve the problems of digital fabrication of free-end modified model and assembly of artificial dentition with resin base and metal framework.
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Affiliation(s)
- Z H Feng
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - S Zhong
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - X Zhang
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - H Dong
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Y Feng
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - R Xie
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - S Z Bai
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - X M Fang
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - P Zhu
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - M Yan
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Y M Zhao
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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Song RX, Wang R, Miao GS, Dong H. Dexmedetomidine-mediated neuroprotection against sevoflurane-induced brain development abnormality in fetal mice brain. Eur Rev Med Pharmacol Sci 2023; 27:2776-2785. [PMID: 37070923 DOI: 10.26355/eurrev_202304_31908] [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: 04/19/2023]
Abstract
OBJECTIVE Brain development is susceptible to external influences during the gestation period so the neurotoxicity of anesthetics has gained a lot of attention. We aimed to investigate the neurotoxicity of sevoflurane to fetal mice brain as well as the neuroprotective effects of dexmedetomidine. MATERIALS AND METHODS Pregnant mice were treated with 2.5% sevoflurane for 6 hours. The changes in fetal brain development were assayed with immunofluorescence and western blot. The pregnant mice were intraperitoneally injected with dexmedetomidine or vehicle from gestation day (G) 12.5 to G15.5. RESULTS Our results showed maternal sevoflurane exposure could not only inhibit neurogenesis but also lead to precocious generation of astrocytes in fetal mice brains. The fetal mice brain of sevoflurane group exhibited a significant inhibition in the activity of Wnt signaling and the expression of CyclinD1, Ngn2. Chronic dexmedetomidine administration could minimize the negative effects caused by sevoflurane by activating the Wnt signaling pathway. CONCLUSIONS This study has uncovered a Wnt signaling-related mechanism of the neurotoxicity of sevoflurane and confirmed the neuroprotective effect of dexmedetomidine, which could provide pre-clinical evidence for clinical decision-making.
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Affiliation(s)
- R-X Song
- Department of Anesthesiology, The Affiliated Hospital of Qingdao University, Qingdao, China.
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26
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Zhang Y, Gao C, Wang P, Liu Y, Liu Z, Xie W, Xu H, Dang Y, Liu D, Ren Z, Yan S, Wang Z, Hu W, Dong H. High Electron Mobility Hot-Exciton Induced Delayed Fluorescent Organic Semiconductors. Angew Chem Int Ed Engl 2023; 62:e202217653. [PMID: 36631427 DOI: 10.1002/anie.202217653] [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] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
The development of high mobility emissive organic semiconductors is of great significance for the fabrication of miniaturized optoelectronic devices, such as organic light emitting transistors. However, great challenge exists in designing key materials, especially those who integrates triplet exciton utilization ability. Herein, dinaphthylanthracene diimides (DNADIs), with 2,6-extended anthracene donor, and 3'- or 4'-substituted naphthalene monoimide acceptors were designed and synthesized. By introducing acceptor-donor-acceptor structure, both materials show high electron mobility. Moreover, by fine-tuning of substitution sites, good integration with high solid state photoluminescence quantum yield of 26 %, high electron mobility of 0.02 cm2 V-1 s-1 , and the feature of hot-exciton induced delayed fluorescence were obtained in 4'-DNADI. This work opens a new avenue for developing high electron mobility emissive organic semiconductors with efficient utilization of triplet excitons.
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Affiliation(s)
- Y Zhang
- National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - C Gao
- National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - P Wang
- National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Y Liu
- Department Key Laboratory of Rubber-Plastics, Ministry of Education/ Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao, 266042, China
| | - Z Liu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - W Xie
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - H Xu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| | - Y Dang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| | - D Liu
- National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Z Ren
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - S Yan
- Department Key Laboratory of Rubber-Plastics, Ministry of Education/ Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao, 266042, China.,State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Z Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - W Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, 350207, China
| | - H Dong
- National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences, Beijing, 100049, China
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Dong H, Wang H, Cronan JE. Divergent unsaturated fatty acid synthesis in two highly related model pseudomonads. Mol Microbiol 2023; 119:252-261. [PMID: 36537550 DOI: 10.1111/mmi.15018] [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] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
The genomes of the best-studied pseudomonads, Pseudomonas aeruginosa and Pseudomonas putida, which share 85% of the predicted coding regions, contain a fabA fabB operon (demonstrated in P. aeruginosa, putative in P. putida). The enzymes encoded by the fabA and fabB genes catalyze the introduction of a double bond into a 10-carbon precursor which is elongated to the 16:1Δ9 and 18:1Δ11 unsaturated fatty acyl chains required for functional membrane phospholipids. A detailed analysis of transcription of the P. putida fabA fabB gene cluster showed that fabA and fabB constitute an operon and disclosed an unexpected and essential fabB promoter located within the fabA coding sequence. Inactivation of the fabA fabB operon fails to halt the growth of P. aeruginosa PAO1 but blocks growth of P. putida F1 unless an exogenous unsaturated fatty acid is provided. We report that the asymmetry between these two species is due to the P. aeruginosa PAO1 desA gene which encodes a fatty acid desaturase that introduces double bonds into the 16-carbon acyl chains of membrane phospholipids. Although P. putida F1 encodes a putative DesA homolog that is 84% identical to the P. aeruginosa PAO1, the protein fails to provide sufficient unsaturated fatty acid synthesis for growth when the FabA FabB pathway is inactivated. We report that the P. putida F1 DesA homolog can functionally replace the P. aeruginosa DesA. Hence, the defect in P. putida F1 desaturation is not due to a defective P. putida F1 DesA protein but probably to a weakly active component of the electron transfer process.
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Affiliation(s)
- Huijuan Dong
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Haihong Wang
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - John E Cronan
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Wang Q, Jiang XJ, Dong H, Che WQ, He JN, Chen Y, Song L, Zhang HM, Zou YB. [Impact of interventional therapy on top of standard drug therapy on left ventricular structure and function in HFrEF patients complicating with middle aortic syndrome caused by Takayasu arteritis]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:1207-1213. [PMID: 36517442 DOI: 10.3760/cma.j.cn112148-20221014-00804] [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: 01/05/2023]
Abstract
Objective: To evaluate the impact of interventional therapy on top of drug therapy on cardiac function and structure in heart failure with reduced ejection fraction (HFrEF) patients complicating with middle aortic syndrome caused by Takayasu arteritis (TA-MAS). Methods: It was a retrospective longitudinal study. The data of patients with TA-MAS and HFrEF, who received interventional therapy on top of drug therapy in Fuwai Hospital from January 2010 to September 2020, were collected and analyzed. Baseline clinical data (including demographic data, basic treatment, etc.) were collected through the electronic medical record system. Changes of indexes such as New York Heart Association (NYHA) classification, N-terminal pro-brain natriuretic peptide (NT-proBNP), left ventricular end diastolic diameter (LVEDD), left ventricular ejection fraction (LVEF), left ventricular mass index (LVMI) before and after therapy were analyzed. Results: A total of 10 patients were collected. There were 8 females in this patient cohort, age was (18.4±5.0) years and onset age was (15.3±5.0) years. All 10 patients received standard heart failure medication therapy in addition to hormone and/or immunosuppressive anti-inflammatory therapy, but cardiac function was not improved, so aortic balloon dilatation and/or aortic stenting were performed in these patients. The median follow-up was 3.3(1.3, 5.6) years. On the third day after interventional therapy, the clinical symptoms of the 10 patients were significantly improved, NYHA classfication was restored from preoperative Ⅲ/Ⅳ to Ⅱ at 6 months post intervention(P<0.05). Compared with preoperation, NT-proBNP (P=0.028), LVEDD (P=0.011) and LVMI (P=0.019) were significantly decreased, LVEF was significantly increased (P<0.001) at 6 months after operation. Compared with preoperation, NT-proBNP (P=0.016), LVEDD (P=0.023) and LVMI (P=0.043) remained decreased, LVEF remained increased (P<0.001) at 1 year after operation. Conclusion: Results from short and medium term follow-up show that interventional therapy on top of heart failure drug therpay can effectively improve left cardiac function and attenuate cardiac remodeling in patients with TA-MAS comorbid with HFrEF.
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Affiliation(s)
- Q Wang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - X J Jiang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - H Dong
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - W Q Che
- Department of Cardiology, China-Japan Friendship Hospital, Beijing 100029, China
| | - J N He
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y Chen
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - L Song
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - H M Zhang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y B Zou
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
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Jiang YL, Munirekiz M, Dong H, Wang YZ, Chao XF, Zhang ZB. [Risk factors analysis on high-risk behaviors of drowning among students in Shufu county, Kashgar area, Xinjiang Uygur Autonomous Region]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1945-1951. [PMID: 36572468 DOI: 10.3760/cma.j.cn112338-20220304-00170] [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: 12/29/2022]
Abstract
Objective: To understand the incidence and risk factors of high-risk drowning behaviors among primary and middle school students in Shufu county, Kashgar area, Xinjiang Uygur Autonomous Region, and provide a theoretical basis for the development of drowning prevention policies and intervention measures. Methods: Cluster random sampling method was adopted in Bulakesu and Uppal of Shufu county. A total of 28 primaries and 2 middle schools were selected, and questionnaires surveyed all the students in grades 1-8. Results: A total of 14 543 questionnaires were sent out. 23.9% of primary and secondary school students had experienced high-risk drowning behavior in the past 12 months. Higher swimming level, introversion, intense curiosity, poor relationship with classmates, poor relationship with family, and open water near the school and open water near home were the risk factors of high-risk drowning behaviors. Conclusions: More attention should be paid to the psychology and high-risk behaviors of primary and middle school students, and the education of drowning knowledge and skills should be strengthened. Meanwhile, schools and communities should pay attention to the management and intervention of open water.
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Affiliation(s)
- Y L Jiang
- School of Public Health, Sun Yat-sen University, Guangzhou 510089, China
| | | | - H Dong
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Z Wang
- Shufu County Center for Disease Control and Prevention, Kashgar 844100, China
| | - X F Chao
- Shufu County Center for Disease Control and Prevention, Kashgar 844100, China
| | - Z B Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Zhang Z, Cao L, Dong H, Cai B, Geng Y, Pang L, Tang Y. Allocating China's 2025 CO 2 emission burden shares to 340 prefecture cities: methods and findings. Environ Sci Pollut Res Int 2022; 29:90671-90685. [PMID: 35871202 DOI: 10.1007/s11356-022-22052-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Peak emission is an important policy/scheme for all the countries to respond greenhouse gas mitigation. The key is how to distribute the emission burden shares to its sub-regions. This study aims to develop a prefecture city leveled CO2 emission allocation model by integrating multi-indicators method and benchmark method so that China's 2025 (end year of 14th Five-Year Plan, FYP) CO2 emission burdens can be allocated to its prefecture cities and provinces. Results show that China's total CO2 emission will reach 12 billion tons in 2025. The majority of such emission will occur in the east China due to its more developed economy and dense population. Cities with high emissions are usually allocated more emission quotas, such as Shanghai, Tianjin, Chongqing, Tangshan, Yulin, Suzhou, and Ningbo. The top five provinces with higher CO2 emission quotas are traditionally high-emission and energy-intensive provinces, including Shandong, Jiangsu, Inner Mongolia, Henan, and Hebei. The national CO2 emission intensity will decrease by 69.35% in 2025 compared to the 2005 level. The CO2 emission intensity reduction rates among the 340 Chinese cities is found to be fluctuating significantly from 16 to 74% during the 14th FYP. Finally, policy recommendations are raised for mitigating city level CO2 emissions by considering the local realities.
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Affiliation(s)
- Zhe Zhang
- Center for Carbon Neutrality, Chinese Academy of Environmental Planning, Beijing, 100012, China
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Libin Cao
- Center for Carbon Neutrality, Chinese Academy of Environmental Planning, Beijing, 100012, China
| | - Huijuan Dong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
- Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Bofeng Cai
- Center for Carbon Neutrality, Chinese Academy of Environmental Planning, Beijing, 100012, China
| | - Yong Geng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai, 200240, China
- School of International and Public Affairs, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Lingyun Pang
- Center for Carbon Neutrality, Chinese Academy of Environmental Planning, Beijing, 100012, China
| | - Yiqi Tang
- School of Public Affairs, Zhejiang University, Hangzhou, 310058, China
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Ebner D, Lester S, Gamez M, Routman D, Ma D, Price K, Dong H, Park S, Chintakuntlawar A, Neben-Wittich M, McGee L, Garces Y, Patel S, Foote R, Evans J. A Prospective Observational Study of Proton Stereotactic Body Radiation Therapy and Immunotherapy for Recurrent Metastatic Head and Neck Cancer: Initial Report of MC ROR1771 Survival Analysis and Toxicity. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Dong H, Nguyen Tuan K, Bui T, Dong H. 381P Real-world experience of treatment with afatinib in advanced non-small cell lung cancer (NSCLC) in Vietnam. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Dong H, Cronan JE. Unsaturated fatty acid synthesis in Enterococcus faecalis requires a specific enoyl-ACP reductase. Mol Microbiol 2022; 118:541-551. [PMID: 36100979 PMCID: PMC9671860 DOI: 10.1111/mmi.14981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 08/18/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 01/12/2023]
Abstract
The Enterococcus faecalis genome contains two enoyl-ACP reductases genes, fabK and fabI, which encode proteins having very different structures. Enoyl-ACP reductase catalyzes the last step of the elongation cycle of type II fatty acid synthesis pathway. The fabK gene is located within the large fatty acid synthesis operon whereas fabI is located together with two genes fabN and fabO required for unsaturated fatty acid synthesis. Prior work showed that FabK is weakly expressed due to poor translational initiation and hence virtually all the cellular enoyl ACP reductase activity is that encoded by fabI. Since FabK is a fully functional enzyme, the question is why FabI is an essential enzyme. Why not increase FabK activity? We report that overproduction of FabK is lethal whereas FabI overproduction only slows the growth and is not lethal. In both cases, normal growth is restored by the addition of oleic acid, an unsaturated fatty acid, to the medium indicating that enoyl ACP reductase overproduction disrupts unsaturated fatty acid synthesis. We report that this is due to competition with FabO, a putative 3-ketoacyl-ACP synthase I via FabN, a dehydratase/isomerase providing evidence that the enoyl-ACP reductase must be matched to the unsaturated fatty acid synthetic genes. FabO has been ascribed the same activity as E. coli FabB and we report in vitro evidence that this is the case, whereas FabN is a dehydratase/isomerase, having the activity of E. coli FabA. However, FabN is much larger than FabA, it is a hexamer rather than a dimer like FabA.
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Affiliation(s)
- Huijuan Dong
- Department of MicrobiologyUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
| | - John E. Cronan
- Department of MicrobiologyUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA,Department of BiochemistryUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
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Dong H, Cronan JE. The Two Acyl Carrier Proteins of Enterococcus faecalis Have Nonredundant Functions. J Bacteriol 2022; 204:e0020222. [PMID: 35920666 PMCID: PMC9487516 DOI: 10.1128/jb.00202-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/01/2022] [Indexed: 02/05/2023] Open
Abstract
Enterococcus faecalis encodes two proteins, AcpA and AcpB, having the characteristics of acyl carrier proteins (ACPs). We report that the acpA gene located in the fatty acid synthesis operon is essential for fatty acid synthesis and the ΔacpA strain requires unsaturated fatty acids for growth. The ΔacpA strain could be complemented by a plasmid carrying a wild-type acpA gene, but not by a plasmid carrying a wild-type acpB gene. Substitution of four AcpA residues for those of AcpB resulted in a protein that modestly complemented the ΔacpA strain and restored fatty acid synthesis, although the acyl chains synthesized were unusually short. IMPORTANCE Enterococcus faecalis, as well as related species, has two genes-acpA and acpB-encoding putative acyl carrier proteins (ACPs). It has been assumed that AcpA is essential for fatty acid synthesis whereas AcpB is involved utilization of environmental fatty acids. We report here the first experimental test of the essentiality of acpA and show that it is indeed an essential gene that cannot be replaced by acpB.
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Affiliation(s)
- Huijuan Dong
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - John E. Cronan
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Sui M, Dong H, Mu G, Xia J, Zhao J, Yang Z, Li T, Sun T, Grattan KTV. Droplet transportation by adjusting the temporal phase shift of surface acoustic waves in the exciter-exciter mode. Lab Chip 2022; 22:3402-3411. [PMID: 35899764 DOI: 10.1039/d2lc00402j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Droplet actuation using Surface Acoustic Wave (SAW) technology has been widely employed in 'lab-on-a-chip' applications, such as for on-chip Polymerase Chain Reactions. The current strategy uses the exciter-absorber mode (exciting a single InterDigital Transducer, IDT) to form a pure Travelling Surface Acoustic Wave (TSAW) and to actuate the droplet, where the velocity and direction of the droplet can be adjusted by controlling the on-off and amplitude of the excitation signals applied to a pair of IDTs. Herein, in a way that is different from using the exciter-absorber mode, we propose a method of actuating droplets by using the exciter-exciter mode (exciting a pair of IDTs simultaneously), where the velocity and directional adjustment of the droplet can be realized by changing only one excitation parameter for the signals (the temporal phase shift, θ), and the droplet velocity can also be significantly improved. Specifically, we report for the first time the equation of the vibration of the mixed waves (TSAW and Standing Surface Acoustic Wave (SSAW)) formed on the substrate surface using the exciter-exciter mode. This is analyzed theoretically, where it is shown in this work that the amplitude and direction of the TSAW component of the mixed waves can be adjusted by changing θ. Following that, the velocity and directional adjustment of the droplet has been realized by changing θ and the improvement of the droplet velocity has been verified on a one-dimensional SAW device, using this exciter-exciter mode. Moreover a series of experiments on droplet transportation, along different trajectories in an x-y plane, has been carried out using a two-dimensional SAW device and this has demonstrated the effectiveness of the θ changing-based approach. Here this exciter-exciter mode provides an alternative method for the transportation of droplets in 'lab-on-a-chip' applications.
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Affiliation(s)
- Mingyang Sui
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
| | - Huijuan Dong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
| | - Guanyu Mu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
| | - Jingze Xia
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
| | - Jie Zhao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
| | - Zhen Yang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Laboratory of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, 100853, China.
| | - Tianlong Li
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
| | - Tong Sun
- School of Mathematics, Computer Science and Engineering, City, University of London, London, EC1V 0HB, UK
| | - Kenneth T V Grattan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.
- School of Mathematics, Computer Science and Engineering, City, University of London, London, EC1V 0HB, UK
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Xi JY, Chen YY, Lin X, Dong H, Liang BH, Zhang YQ, Chen LC, Luo A, Qin PZ, Hao Y. [Health-adjusted life expectancy in residents in Guangzhou, 2010-2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1415-1422. [PMID: 36117348 DOI: 10.3760/cma.j.cn112338-20220207-00098] [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: 06/15/2023]
Abstract
Objective: To analyze the spatiotemporal distribution of life expectancy (LE) and health-adjusted life expectancy (HALE) in Guangzhou from 2010 to 2019, and quantize the comprehensive impact of different causes and sequelae on health. Methods: The LE, HALE, and cause-excluded health adjusted life expectancy (CEHALE) were estimated using cause-of-death surveillance datasets from Guangzhou Municipal Center for Disease Control and Prevention from 2010 to 2019 and open data from the Global Burden of Disease Study. Joinpoint log-linear regression model was used to analyze the temporal trend and described spatial distribution. Results: In 2019, the LE in residents in Guangzhou was 82.9 years (80.1 years in men and 85.9 years in women), and the HALE was 75.6 years (74.0 years in men and 77.3 years in women). Compared with the urban fringe, the central urban area had higher LE and HALE, and the differences between LE and HALE were small. The LE and HALE in Guangzhou showed an increasing trend from 2010 to 2019. The LE increased by 2.8 years (AAPC=0.4, 95%CI: 0.3-0.4), with the increase of 2.8 years in men and 2.9 years in women. The HALE increased by 2.4 years (AAPC=0.3, 95%CI: 0.3-0.4), with the increase of 2.5 years in men and 2.2 years in women. The median healthy life lost due to communicable, maternal, neonatal, and nutritional diseases was 6.2 years (AAPC=-4.2, 95%CI: -5.3--3.1), while the median healthy life lost due to non-communicable diseases was 14.7 years (AAPC=1.6, 95%CI: 0.9-2.3), the median healthy life expectancy reduced by injury was 6.3 years (AAPC=-3.5, 95%CI: -4.5--2.6). Musculoskeletal disorders, skin and subcutaneous diseases, cardiovascular diseases, nutritional deficiencies, diabetes and kidney diseases were the top five diseases causing healthy life expectancy loss. Conclusion: The LE and HALE in residents in Guangzhou increased steadily from 2010 to 2019, but the quality of life in the urban fringe was lower than that of the central urban area. Non-communicable diseases were the leading causes of healthy life expectancy loss. Health policies and prevention measures should be developed according to area specific characteristics, and social medical resources should be rationally allocated to key diseases to reduce their disease burden.
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Affiliation(s)
- J Y Xi
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Y Chen
- Department of Chronic Non-communicable Disease Control and Prevention, Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - X Lin
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - H Dong
- Department of Chronic Non-communicable Disease Control and Prevention, Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - B H Liang
- Department of Chronic Non-communicable Disease Control and Prevention, Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Q Zhang
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - L C Chen
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - A Luo
- Institute for Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - P Z Qin
- Department of Chronic Non-communicable Disease Control and Prevention, Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Yuantao Hao
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China Sun Yat-sen Global Health Institute, Sun Yat-sen University, Guangzhou 510080, China Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
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Ma X, Liu Y, Chen ZH, Zhang Y, Dong H, Song JQ, Jin Y, Li MQ, Kang LL, He RX, Ding Y, Li DX, Zheng H, Sun LY, Zhu ZJ, Yang YL, Cao Y. [Phenotypes and genotypes of 78 patients with propionic acidemia]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1263-1271. [PMID: 36207890 DOI: 10.3760/cma.j.cn112150-20220620-00630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: Propionic acidemia is a rare inherited metabolic disorder caused by propionyl CoA carboxylase (PCC) deficiency. This study aims to analyze the clinical characteristics and gene variations of Chinese patients with propionic acidemia, and to explore the correlation between clinical phenotypes and genotypes. Methods: Single-center, retrospective and observational study. Seventy-eight patients of propionic acidemia (46 males and 32 females) from 20 provinces and autonomous regions were admitted from January 2007 to April 2022. Their age of initial diagnosis ranged from 7 days to 15 years. The clinical manifestations, biochemical and metabolic abnormalities, genetic variations, diagnosis, treatment and outcome were studied. Chi-Square test or Mann-Whitney U test were used for statistical analysis. Results: Among 78 cases, 6 (7.7%) were identified by newborn screening; 72 (92.3%) were clinically diagnosed after onset, and the age of onset was 2 hours after birth to 15 years old; 32 cases had early-onset disease and 40 cases had late-onset disease. The initial manifestations included lethargy, hypotonia, vomiting, feeding difficulties, developmental delay, epilepsy, and coma. Among the 74 cases who accepted gene analysis, 35 (47.3%) had PCCA variants and 39 (52.7%) had PCCB variants. A total of 39 PCCA variants and 32 PCCB variants were detected, among which c.2002G>A and c.229C>T in PCCA and c.838dupC and c.1087T>C in PCCB were the most common variants in this cohort. The variants c.1228C>T and c.1283C>T in PCCB may be related to early-onset type. The variants c.838dupC, c.1127G>T and c.1316A>G in PCCB, and c.2002G>A in PCCA may be related to late-onset disease. Six patients detected by newborn screening and treated at asymptomatic stage developed normal. The clinically diagnosed 72 cases had varied complications. 10 (12.8%) cases of them died. 62 patients improved after metabolic therapy by L-carnitine and diet. Six patients received liver transplantation because of recurrent metabolic crisis. Their clinical symptoms were markedly improved. Conclusion: The clinical manifestations of propionic acidemia are complex and lack of specificity. Newborn screening and high-risk screening are keys for early treatment and better outcome. The correlation between the genotype and phenotype of propionic acidemia is unclear, but certain variants may be associated with early-onset or late-onset propionic acidemia.
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Affiliation(s)
- X Ma
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - Y Liu
- Department of Clinical Laboratory, China-Japan Friendship Hospital, Beijing 100029,China
| | - Z H Chen
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - Y Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - H Dong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - J Q Song
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - Y Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - M Q Li
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - L L Kang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - R X He
- Department of Respiratory, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Y Ding
- Department of Endocrinology and Genetic, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - D X Li
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou 450053, China
| | - H Zheng
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450099, China
| | - L Y Sun
- Department of General Surgery, Beijing Friendship Hospital of Capital Medical University, Beijing 100050, China
| | - Z J Zhu
- Department of General Surgery, Beijing Friendship Hospital of Capital Medical University, Beijing 100050, China
| | - Y L Yang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034,China
| | - Yongtong Cao
- Department of Clinical Laboratory, China-Japan Friendship Hospital, Beijing 100029,China
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Yuan J, Chen W, Wang L, Cao C, Song X, Zhao J, Gai F, Dong H, Zhu C, Shi H. 1248P Identification of Epstein-Barr virus (EBV)-associated gastric cancer at RNA-level by evaluating transcriptional status of seven EBV crucial genes. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Zhang C, Dong H, Geng Y, Liang H, Liu X. Machine learning based prediction for China's municipal solid waste under the shared socioeconomic pathways. J Environ Manage 2022; 312:114918. [PMID: 35325735 DOI: 10.1016/j.jenvman.2022.114918] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 02/20/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Reliable forecast of municipal solid waste (MSW) generation is crucial for sustainable and efficient waste management. Big data analysis is a novel method to forecast MSW more accurately. Thus, this study employs five kinds of supervised machine learning approaches including linear regression, polynomial regression, support vector machine, random forest, and extreme gradient boosting (XGBoost) to examine their forecast performances. China's MSW generation from 2020 to 2060 under five shared socioeconomic pathways (SSPs) is further predicted and the mechanisms between MSW generation and socioeconomic features are explored. Results show that population and GDP are two dominant indicators in MSW prediction, and XGBoost model is proved to be effective in MSW forecast. MSW generation of China in 2060 is estimated to be 464-688 megatons under different SSPs scenarios, about four to six times of that in 2000. SSP3 that has the most population, least GDP and the highest climate change challenges is the only scenario showing a potential of MSW peak during the study period. The key for MSW increase is mainly the increase of per capita MSW caused by GDP. Finally, several policy recommendations are raised to reduce the overall MSW generation.
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Affiliation(s)
- Chenyi Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Huijuan Dong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Yong Geng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai, 200240, China; School of International and Public Affairs, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Hongda Liang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiao Liu
- China Institute for Urban Governance, Shanghai Jiao Tong University, Shanghai, 200030, China
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40
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Wu XX, Yu CJ, Yu L, Dong H, Jin L, Cui L, Li WJ, Zhang LJ. [Two cases of herpes simplex keratitis after trans-epithelial photorefractive keratectomy]. Zhonghua Yan Ke Za Zhi 2022; 58:448-452. [PMID: 35692027 DOI: 10.3760/cma.j.cn112142-20211221-00592] [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: 06/15/2023]
Abstract
We herein report 2 cases of herpes simplex keratitis after trans-epithelial photorefractive keratectomy. Patients' medical histories, symptoms, signs, clinical examination results, diagnosis and treatment were showed in detail. Following precision diagnosis and medical intervention, including topical and systemic antiviral treatmented for 1 to 2 weeks. The two patients were cured with full reepithelialization without corneal scar.
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Affiliation(s)
- X X Wu
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - C J Yu
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - L Yu
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - H Dong
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - L Jin
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - L Cui
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - W J Li
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
| | - L J Zhang
- Department of Ophthalmology, Dalian Third People's Hospital, Dalian 116033, China
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Zou Q, Dong H, Zhu L, Cronan JE. The Enterococcus faecalis FabT Transcription Factor Regulates Fatty Acid Biosynthesis in Response to Exogeneous Fatty Acids. Front Microbiol 2022; 13:877582. [PMID: 35547134 PMCID: PMC9083066 DOI: 10.3389/fmicb.2022.877582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/30/2022] [Indexed: 12/02/2022] Open
Abstract
The phospholipid acyl chains of Enterococcus faecalis can be derived either by de novo synthesis or by incorporation of exogenous fatty acids through the fatty acid kinase complex (Fak)-phosphate acyltransferase (PlsX) pathway. Exogenous fatty acids suppress fatty acid synthesis through the transcriptional repressor FabT, the loss of which eliminated regulation of de novo fatty acid biosynthesis and resulted in decreased incorporation of exogenous unsaturated fatty acids. Purified FabT bound to the promoters of several fatty acid synthesis genes that contain a specific palindromic sequence and binding was enhanced by acylated derivatives of acyl carrier protein B (acyl-AcpB). The loss of the PlsX pathway blocked FabT-dependent transcriptional repression in the presence of oleic acid. Transcriptional repression was partially retained in a E. faecalis ΔacpB strain which showed decreased fatty acid biosynthesis in the presence of exogenous unsaturated fatty acids. The FabT-dependent activity remaining in the ΔacpB strain indicates that acylated derivatives of AcpA were weak enhancers of FabT binding although AcpA is believed to primarily function in de novo fatty acid synthesis.
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Affiliation(s)
- Qi Zou
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Huijuan Dong
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Lei Zhu
- College of Life Sciences, Shandong Agricultural University, Taian, China
| | - John E Cronan
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, United States.,Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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42
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Deng Y, Wang W, Zheng Q, Feng Y, Zou Y, Dong H, Tan Z, Zeng X, Zhao Y, Peng D, Yang X, Sun A. Menopausal hormone therapy: what are the problems in the perception of Chinese physicians? Climacteric 2022; 25:413-420. [PMID: 35438051 DOI: 10.1080/13697137.2022.2058391] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This study aimed to investigate Chinese physicians' perception and attitudes toward menopausal hormone therapy (MHT). METHODS This nationwide online survey was conducted in China. Physicians registered in the WeChat groups of the Gynecological Endocrinology Committee of China's Maternal and Child Health Care Association received a message invitation to complete this anonymous online survey from April 2020 to July 2020. Physicians' knowledge of and attitudes toward MHT were surveyed. RESULTS In total, 4672 questionnaires were submitted; only completed questionnaires could be submitted. The message was sent to 6021 doctors, so the response rate was 77.6%. Overall, 77.9-92.9% of physicians knew the common indications and contraindications to MHT. Additionally, 90.6%, 85.4%, 80.7% and 37.5% of physicians thought that MHT would increase the risk of venous thrombosis, breast cancer, endometrial cancer and weight gain, respectively. In total, 58.1% of the physicians mistakenly believed that a sex hormone test was one of the necessary examinations to reassess MHT prescription during follow-up visits. We found that 68.5% of physicians would consider using MHT themselves or recommend MHT to their partners in the future, and 11.4% were currently using MHT. CONCLUSIONS Most Chinese physicians have basic knowledge of MHT. Their misunderstandings about MHT mainly centered on the risks of endometrial cancer, weight gain and the necessary examinations during follow-up visits. These misunderstandings need to be clarified in future professional training programs.
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Affiliation(s)
- Y Deng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - W Wang
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Hebei, China
| | - Q Zheng
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Shandong, China
| | - Y Feng
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, JiangXi, China
| | - Y Zou
- Department of Obstetrics and Gynecology, Hunan Provincial Maternal and Child Health Care Hospital, Hunan, China
| | - H Dong
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Jinzhou, Liaoning, China
| | - Z Tan
- Department of Obstetrics and Gynecology, Xinhui Maternity and Children's Hospital, Guangxi, China
| | - X Zeng
- Department of Gynecology, Guangzhou Women and Children's Medical Centre, Guangdong, China
| | - Y Zhao
- Department of Obstetrics and Gynecology, Xinhui Maternity and Children's Hospital, Guangxi, China
| | - D Peng
- Department of Obstetrics and Gynecology, Zhongda Hospital Southeast Univeisity, Jiangsu, China
| | - X Yang
- Department of Obstetrics and Gynecology, Liuzhou Maternity and Child Healthcare Hospital, GuangXi, China
| | - A Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
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Guo J, Dong H, Farzaneh H, Geng Y, Reddington CL. Uncovering the overcapacity feature of China's industry and the environmental & health co-benefits from de-capacity. J Environ Manage 2022; 308:114645. [PMID: 35131707 DOI: 10.1016/j.jenvman.2022.114645] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/26/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Overcapacity is regarded as an inevitable problem for rapid economic developing countries like China, which also causes serious adverse impacts on the environment and public health. However, few studies have quantified the overcapacity feature and corresponding co-benefit from de-capacity policy. To fill such research gaps, this study constructed a comprehensive assessment model by combining the Data Envelopment Analysis (DEA) model, the GAINS-China (Greenhouse gas - Air pollution Interactions and Synergies) model, and a meta-analysis and health impact assessment module, to measure the capacity utilization rate of 41 industrial sectors in 31 Chinese provinces and forecast the environmental and health co-benefits from de-capacity policy in 2050. Results showed that the capacity utilization rate of China's industry is 64.13% in 2018, which is much lower than the threshold value of 75%, indicating serious overcapacity in China's industry. Capacity utilization rates of light industries are higher (around 70%) than heavy industries (50%-60%), and the capacity utilization rate in East and South-Central China is higher (70%-96%) than West China (below 40%). Under a de-capacity scenario in 2050, China's CO2 and PM2.5 emissions are reduced by 1.05 billion tons (9.6%) and 57.8 kilotons (5.8%), respectively. This reduction in PM2.5 emissions results in a substantial health co-benefit, reducing national premature mortality cases by approximately 792,100 (1.6%). Finally, it is recommended that de-capacity priority be given to industries with low capacity utilization rate, as well as regions with intensive heavy industry or high levels of greenhouse gas emissions, severe air pollution, and dense population.
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Affiliation(s)
- Jiawen Guo
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, China; Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka, Japan
| | - Huijuan Dong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; SJTU-UNIDO Joint Institute of Inclusive and Sustainable Industrial Development, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Hooman Farzaneh
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka, Japan
| | - Yong Geng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; SJTU-UNIDO Joint Institute of Inclusive and Sustainable Industrial Development, Shanghai Jiao Tong University, Shanghai, 200030, China; School of International and Public Affairs, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Carly L Reddington
- Institute for Climate & Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
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44
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Hu Z, Dong H, Zhai Y, Cui H, Li C, Li J, Xue C, Lu X, Yu Y. 33P A literature review of Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) caused by immune checkpoint inhibitors (ICIs), epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) and multikinase inhibitors (MKIs). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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45
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Wang J, Zhang H, Dong H, Zhao J. Robust output-feedback torque controller design for series elastic actuators and its application in multi-level control frameworks. ISA Trans 2022; 123:443-454. [PMID: 34092390 DOI: 10.1016/j.isatra.2021.05.035] [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] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/09/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Robust output-feedback torque controller is developed for series elastic actuators (SEAs) in the presence of parameter uncertainties and external disturbances. The strong robustness of the proposed controller results from the filter-based observer which can estimate the velocity signals and the system lumped disturbance. The dynamic surface method is adopted to make the time-domain controller independent of any derivatives of the command reference, making the torque controller an ideal building block for multi-level control frameworks. The semiglobal stability of the closed-loop control system is proven under the assumption that only the state-independent uncertainty is bounded. The experimental results verify the effectiveness of the torque controller, and the implementation of two-level control frameworks, including the impedance control and SEA's load position control, further demonstrates its wide applicability.
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Affiliation(s)
- Jilong Wang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
| | - He Zhang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
| | - Huijuan Dong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
| | - Jie Zhao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
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46
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Shen J, Dong H, Li C, Yan J. Formulation, Characterization, Antioxidant, Cytotoxicity, and Anti-acute Leukemia Effects of Fe Nanoparticles. J Oleo Sci 2022; 71:387-394. [PMID: 35236798 DOI: 10.5650/jos.ess21317] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this study, iron nanoparticles were prepared and synthesized in aqueous medium using Cinnamomum verum as stabilizing and reducing agents. We determined the anti-acute leukemia potentials of FeNPs against acute T cell leukemia and acute lymphoblastic leukemia cell lines. FeNPs inhibited half of the DPPH molecules in the concentration of 139 µg/mL. MTT assay was used on J.RT3-T3.5 (Acute T cell leukemia cell line), Jurkat, Clone E6-1 (Acute T cell leukemia cell line), MOLT-3 (Acute lymphoblastic leukemia cell line), TALL-104 (Acute lymphoblastic leukemia cell line), and HUVEC (Normal cell line) for analyzing of cytotoxicity and anti-acute leukemia effects of FeNPs. These nanoparticles had high cell death and anti-acute leukemia effects against J.RT3-T3.5, Jurkat, Clone E6-1, MOLT-3, and TALL-104 cell lines. Among the above cell lines, the best result of anti-acute leukemia properties of composite was gained in the cell line of Jurkat, Clone E6-1. All result showed the iron nanoparticles may be used as a chemotherapeutic treatment drug of leukemia in humans.
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Affiliation(s)
- JiaKun Shen
- Department of Hematology, Shangrao People's Hospital
| | - Huijuan Dong
- Department of Hematology, Shangrao People's Hospital
| | - Chunyan Li
- Department of Hematology, Shangrao People's Hospital
| | - Jingxiu Yan
- Department of Hematology, Shangrao People's Hospital
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47
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Lang DH, Ba T, Cao SJ, Li F, Dong H, Li JL, Wang LF. [Research advances on signaling pathways affecting sweat gland development and their involvement in the reconstitution of sweat adenoid cells in vitro]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:195-200. [PMID: 35220709 DOI: 10.3760/cma.j.cn501120-20201020-00442] [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: 06/14/2023]
Abstract
The damage of sweat glands in patients with extensive deep burns results in the loss of thermoregulation, which seriously affects the quality of life of patients. At present, there are many researches on the repair of sweat gland function, but the mechanism of human sweat gland development has not been fully clarified. More and more studies have shown that the cascaded pathways of Wnt/β-catenin, ecto- dysplasin A/ectodysplasin A receptor/nuclear factor-κB, sonic hedgehog, and forkhead box transcription factor jointly affect the development of sweat glands, and it has been reported that the cascaded signaling pathways can be used to achieve the reconstruction of sweat adenoid cells in vitro. This article reviews the signaling pathways that affect the development of sweat glands and their involvement in the reconstruction of sweat adenoid cells in vitro.
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Affiliation(s)
- D H Lang
- The Third Clinical Medical College of Inner Mongolia Medical University, Hohhot 010110, China
| | - T Ba
- Department of Burns, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, China
| | - S J Cao
- Department of Burns, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, China
| | - F Li
- Department of Burns, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, China
| | - H Dong
- Department of Burns, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, China
| | - J L Li
- Department of Burns, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, China
| | - L F Wang
- Department of Burns, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, China
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48
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Dong Y, Dong H, Yuan Y, Jiang J. Role of Peer Coaching in Transmitting the Benefits of Leader Coaching. Front Psychol 2022; 12:679370. [PMID: 35087438 PMCID: PMC8787309 DOI: 10.3389/fpsyg.2021.679370] [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: 03/11/2021] [Accepted: 11/24/2021] [Indexed: 11/13/2022] Open
Abstract
Drawing on social information processing theory, the present study examines how and when leader coaching can be beneficial for team performance. Based on a sample of 58 teams from a sanitary product company in China, we found that peer coaching served as a mediator linking leader coaching and team performance. Moreover, the team individualistic/collectivism value moderated the first-stage relationship that the relationship between leader coaching and peer coaching was more positive when the team individualism value was low, but not significant when the team individualism value was high; while team task interdependence moderated the second-stage relationship that the relationship between peer coaching and team performance was more positive when the team task interdependence was high, but not significant when it was low. The findings enrich our understandings of the effectiveness of leader coaching behavior by uncovering the theoretical mechanism and boundary conditions. The study also provides important implications for coaching practice in organizations.
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Affiliation(s)
- Yanan Dong
- School of Economics and Management, Beihang University, Beijing, China
| | - Huijuan Dong
- School of Tourism Science, Beijing International Studies University, Beijing, China
| | - Yuan Yuan
- School of Tourism Science, Beijing International Studies University, Beijing, China
| | - Jing Jiang
- School of Tourism Science, Beijing International Studies University, Beijing, China
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49
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Zhao WH, Ma Y, Wang H, Li K, Dong H, Liu WH, Liu YY, Jiang SQ, Luo L, Yang ZC. [Epidemiological characteristics of three local epidemics of COVID-19 in Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:2088-2095. [PMID: 34954969 DOI: 10.3760/cma.j.cn112338-20210728-00592] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To understand the epidemiological characteristics of three local COVID-19 epidemics in Guangzhou and provide reference for optimizing strategies and measures of COVID-19 prevention and control. Methods: The data of local COVID-19 cases in Guangzhou reported as of June 18, 2021 were collected from National Notifiable Disease Report System of China. The software Excel 2019 and SPSS 22.0 were applied for data cleaning and statistical analysis. Results: A total of 726 COVID-19 cases were reported in the three local epidemics in Guangzhou. In the epidemic associated with the outbreak of COVID-19 in Hubei province, 366 cases were reported. Most cases were female (51.6%, 189/366), aged 18-65 years (81.4%, 298/366), jobless/unemployed (32.2%, 118/366) and retired persons (20.2%,74/366). The initial symptoms of most cases were fever (71.6%, 250/349) and cough (60.7%, 212/349). In the epidemic associated with the imported COVID-19 cases from Africa, 207 cases were reported. Most cases were aged 18-40 years (72.9%, 151/207), male (69.6%, 144/207), and engaged in commercial services (62.3%,129/207). The initial symptoms of most cases were no obvious discomfort (55.6%, 15/27) and cough (37.0%, 10/27). In the epidemic associated with Delta variant of SARS-CoV-2, 153 cases were reported, in which women accounted for 58.8% (90/153), most cases were over 41 years old (64.7%,99/153), and retired persons accounted for the highest proportion (32.0%,49/153). The initial symptoms of most cases were cough (32.9%, 48/146) and no obvious discomfort (28.1%, 41/146). The household secondary attack rates of the three local epidemics were 11.2%, 5.7% and 11.5%, respectively. The median (P25, P75) of incubation periods were 6.5 (4.0,10.8) d, 4.0 (2.5, 6.0) d and 4.0 (3.0,5.0) d. The serial intervals median (P25, P75) were 4.0 (3.0, 8.0) d, 4.0 (2.5, 6.0) d and 3.0 (2.0,5.0) d. There were significant differences in gender, age, occupation, initial symptoms, household secondary attack rate and incubation period among the three local COVID-19 epidemics (all P<0.05). In the proportion of the case finding way, passive detection in patient treatment were mainly 44.3%(162/366) in the epidemic associated with the outbreak of COVID-19 in Hubei province,but active community case screening [58.5% (121/207) and 27.5% (24/153)] and close contact management in imported case were mostly [33.3% (69/207) and 67.3% (103/153)] in the epidemic associated with the imported COVID-19 cases from Africa and with Delta variant of SARS-CoV-2, respectively. Conclusions: Due to the different sources of infection, strain types and prevention and control strategies, the epidemiological characteristics of the three local COVID-19 epidemics in Guangzhou differed in demographics, clinical symptoms, transmission routes and case finding, which suggested that it is necessary to improve the key population and common symptom monitoring in the routine prevention and control of COVID-19 to prevent the reemerge of the epidemic.
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Affiliation(s)
- W H Zhao
- School of Public Health, Southern Medical University, Guangzhou 510515, China Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Ma
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - H Wang
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - K Li
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - H Dong
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W H Liu
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Y Liu
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - S Q Jiang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - L Luo
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z C Yang
- School of Public Health, Southern Medical University, Guangzhou 510515, China Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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50
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Cheon IS, Li C, Son YM, Goplen NP, Wu Y, Cassmann T, Wang Z, Wei X, Tang J, Li Y, Marlow H, Hughes S, Hammel L, Cox TM, Goddery E, Ayasoufi K, Weiskopf D, Boonyaratanakornkit J, Dong H, Li H, Chakraborty R, Johnson AJ, Edell E, Taylor JJ, Kaplan MH, Sette A, Bartholmai BJ, Kern R, Vassallo R, Sun J. Immune signatures underlying post-acute COVID-19 lung sequelae. Sci Immunol 2021; 6:eabk1741. [PMID: 34591653 DOI: 10.1126/sciimmunol.abk1741] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
[Figure: see text].
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Affiliation(s)
- I S Cheon
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - C Li
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Y M Son
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - N P Goplen
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Y Wu
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - T Cassmann
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Z Wang
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - X Wei
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - J Tang
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Y Li
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN 55905, USA
| | - H Marlow
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - S Hughes
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - L Hammel
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - T M Cox
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - E Goddery
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - K Ayasoufi
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - D Weiskopf
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - J Boonyaratanakornkit
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - H Dong
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - H Li
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905, USA
| | - R Chakraborty
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA.,Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - A J Johnson
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - E Edell
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - J J Taylor
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - M H Kaplan
- Department of Microbiology and Immunology, Indiana University of School of Medicine, Indianapolis, IN 46202, USA
| | - A Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA.,Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California San Diego (UCSD), La Jolla, CA 92037, USA
| | - B J Bartholmai
- Department of Radiology, Mayo Clinic, Rochester, MN 5590, USA
| | - R Kern
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - R Vassallo
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - J Sun
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA.,Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN 55905, USA.,Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA.,Division of Infectious Disease and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
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