1
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Shi B, He E, Chang K, Xu G, Meng Q, Xu H, Chen Z, Wang X, Jia M, Sun W, Zhao W, Zhao H, Dong L, Cui H. Genistein prevents the production of hypospadias induced by Di-(2-ethylhexyl) phthalate through androgen signaling and antioxidant response in rats. J Hazard Mater 2024; 466:133537. [PMID: 38244450 DOI: 10.1016/j.jhazmat.2024.133537] [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] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/11/2024] [Accepted: 01/13/2024] [Indexed: 01/22/2024]
Abstract
Environmental estrogen exposure has increased dramatically over the past 50 years. In particular, prenatal exposure to estrogen causes many congenital diseases, among which reproductive system development disorders are extremely serious. In this study, the molecular mechanism of hypospadias and the therapeutic effect of genistein (GEN) were investigated through in vivo models prepared by Di-(2-ethylhexyl) phthalate (DEHP) exposure between 12 and 19 days of gestation. With increased DEHP concentrations, the incidence of hypospadias increased gradually. DEHP inhibited the key enzymes involved in steroid synthesis, resulting in decreasing testosterone synthesis. At the same time, DEHP increased reactive oxygen species (ROS) and produced inflammatory factors via NADPH oxidase-1 (NOX1) and NADPH oxidase-4 (NOX4) pathways. It also inhibited Steroid 5 α Reductase 2 (Srd5α2) and decreased dihydrotestosterone (DHT) synthesis. Additionally, DEHP inhibited the androgen receptor (AR), resulting in reduced DHT binding to the AR that ultimately retarded the development of the external reproductive system. GEN, a phytoestrogen, competes with DEHP for binding to estrogen receptor β (ERβ). This competition, along with GEN's antiestrogen and antioxidant properties, could potentially reverse impairments. The findings of this study provide valuable insights into the role of phytoestrogens in alleviating environmental estrogen-induced congenital diseases.
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Affiliation(s)
- Bowen Shi
- Graduate School, Tianjin Medical University, Tianjin 300070, China; Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
| | - Enyang He
- Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Kaili Chang
- Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Guodong Xu
- Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
| | - Qingya Meng
- Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
| | - Haihua Xu
- Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
| | - Ziying Chen
- Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
| | - Xiaojia Wang
- Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
| | - Miao Jia
- Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Wenjing Sun
- Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Wei Zhao
- Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Hailan Zhao
- Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Liang Dong
- Graduate School, Tianjin Medical University, Tianjin 300070, China; Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China.
| | - Hualei Cui
- Graduate School, Tianjin Medical University, Tianjin 300070, China; Tianjin Children's Hospital (Tianjin University Children's Hospital), Tianjin 300134, China.
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2
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Dong HM, Liang HP, Tao ZH, Duan YF, Milošević MV, Chang K. Interface thermal conductivities induced by van der Waals interactions. Phys Chem Chem Phys 2024; 26:4047-4051. [PMID: 38224156 DOI: 10.1039/d3cp05377f] [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: 01/16/2024]
Abstract
The interface heat transfer of two layers induced by van der Waals (vdW) contacts is theoretically investigated, based on first-principles calculations at low temperatures. The results suggest that out-of-plane acoustic phonons with low frequencies dominate the interface thermal transport due to the vdW interaction. The interface thermal conductivity is proportional to the cubic of temperature at very low temperatures, but becomes linearly proportional to temperature as temperature increases. We show that manipulating the strain alters vdW coupling, leading to increased interfacial thermal conductivity at the interface. Our findings provide valuable insights into the interface heat transport in vdW heterostructures and support further design and optimization of electronic and optoelectronic nanodevices based on vdW contacts.
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Affiliation(s)
- H M Dong
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China.
| | - H P Liang
- Beijing Computational Science Research Center, Beijing, 100193, China
| | - Z H Tao
- Department of Physics and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
| | - Y F Duan
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China.
| | - M V Milošević
- Department of Physics and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
- Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, Mato Grosso 78060-900, Brazil
| | - K Chang
- School of Physics, Zhejiang University, Hangzhou 310027, P. R. China.
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3
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He E, Chang K, Dong L, Jia M, Sun W, Cui H. Identification and Validation of CXCL2 as a Key Gene for Childhood Obesity. Biochem Genet 2023:10.1007/s10528-023-10566-8. [PMID: 38010448 DOI: 10.1007/s10528-023-10566-8] [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: 04/14/2023] [Accepted: 10/26/2023] [Indexed: 11/29/2023]
Abstract
This study aims to identify the key genes and their regulatory networks by bioinformatics, increasing understanding of childhood obesity. The data comes from the GEO and Immport database. The immune microenvironment was explored in GSE104815. Key genes were identified by intersection of DEGs with the immune gene set. Enrichment analysis revealed gene-related functions and correlation analysis explored the relationship. Regulatory networks were constructed based on miRcode, TarBase and TargetScan databases. GSE29718 was used to validate our findings. Intercellular communication and cell differentiation trends were further explored using single-cell data from GSE153643. Based on our research, the immune microenvironment in the obese group showed higher immune infiltration. We found 962 DEGs and CXCL2 was identified as the key gene. The co-regulatory network of lncRNA-miRNA-mRNA suggested that obtaining TM4SF19-AS1, GUSBP11, AC105020.1, LINC00189, COL4A2-AS2, VIPR1-AS1 and LINC00242 may regulate CXCL2 (r > 0.9 and P < 0.01). Differential expression of CXCL2 was validated in GSE29718 (P < 0.05) and CXCL2 was identified as a biomarker for childhood obesity (AUC = 0.885). GSVA enrichment analysis revealed many pathways of high group obtaining the TNF-α signaling via NF-κB pathway and interferon γ response pathway. In GSE153643, 11 cell types were identified and CXCL2 was highly expressed in monocyte, macrophage, endothelial cell and pericyte. In CXCL2 high expressing macrophages, there was a tendency for cells to polarize toward M1 macrophages (P < 0.05). In summary, we identified CXCL2 as a potential biomarker of childhood obesity. The development of childhood obesity may be associated with the activation of immune infiltration of macrophage M1 polarization by CXCL2 expression.
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Affiliation(s)
- Enyang He
- Tianjin Medical University, Tianjin, China
| | | | - Liang Dong
- Tianjin Children's Hospital, Tianjin, China
| | - Miao Jia
- Tianjin Medical University, Tianjin, China
| | | | - Hualei Cui
- Tianjin Children's Hospital, Tianjin, China.
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4
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Chang K, Fang Y, He P, Zhu C, Liu X, Zheng D, Chen D, Liu C. Employing the Anchor DSPE-PEG as a Redox Probe for Ratiometric Electrochemical Detection of Surface Proteins on Extracellular Vesicles with Aptamers. Anal Chem 2023; 95:16194-16200. [PMID: 37889159 DOI: 10.1021/acs.analchem.3c02948] [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] [Indexed: 10/28/2023]
Abstract
Quantitative analysis of surface proteins on extracellular vesicles (EVs) has been considered to be a crucial approach for reflecting the status of diseases. Due to the diverse composition of surface proteins on EVs and the interference from nonvesicular proteins, accurately detecting the expression of surface proteins on EVs remains a challenging task. While membrane affinity molecules have been widely employed as EVs capture probes to address this issue, their inherent biochemical properties have not been effectively harnessed. In this paper, we found that the electrochemical redox activity of the DSPE-PEG molecule was diminished upon its insertion into the membrane of EVs. This observation establishes the DSPE-PEG molecule modified on the Au electrode surface as a capture and a redox probe for the electrochemical detection of EVs. By utilizing methylene blue-labeled aptamers, the targeted surface proteins of EVs can be detected by recording the ratio of the oxidation peak current of methylene blue and DSPE-PEG. Without complicated signal amplification, the detection limit for EVs is calculated to be 8.11 × 102 particles/mL. Using this platform, we directly analyzed the expression of CD63 and HER2 proteins on the surface of EVs in human clinical plasma samples, demonstrating its significant potential in distinguishing breast cancer patients from healthy individuals.
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Affiliation(s)
- Kaili Chang
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Yi Fang
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Ping He
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Chunnan Zhu
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Xiaojun Liu
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Dongyun Zheng
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Dongjuan Chen
- Department of Laboratory Medicine, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - Chao Liu
- The Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
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5
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Abstract
We study non-trivial spin textures, nanoscale magnetic skyrmions and skyrmioniums, in two-dimensional (2D) Janus magnets, such as MnSTe and MnSeTe, based on the micromagnetism approach and Landau-Lifshitz-Gilbert (LLG) equation. It is found that the Janus magnetic structures can host stable Néel nano-skyrmions with sub-10 nm diameters, and skyrmioniums with zero topological charge. The skyrmion size can be squeezed by external magnetic fields, and even the topological charge can be changed. The diameters of the skyrmioniums are about twice the size of the skyrmions. Moreover, the switching of the topological charge Q = ±1 can be realized by changing the direction of the external magnetic fields. Our results clearly show that magnetic skyrmions in Janus magnets can be used to construct new types of efficient spintronic nanodevices.
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Affiliation(s)
- H M Dong
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China.
| | - P P Fu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China.
| | - Y F Duan
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China.
| | - K Chang
- SKLSM, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China.
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6
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Wang N, Zhang L, Yu J, Chang K, Fan M, Liu Z, Ma L, Cao J, Huang G. Identification of an Alepterolic Acid Derivative as a Potent Anti-Breast-Cancer Agent via Inhibition of the Akt/p70 S6K Signaling Pathway. Chem Biodivers 2023:e202301248. [PMID: 37739929 DOI: 10.1002/cbdv.202301248] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 09/24/2023]
Abstract
Alepterolic acid is a diterpene occurring in the fern Aleuritopteris argentea with potential biological activity that warrants further structural modification. In the present work, sixteen alepterolic acid derivatives were synthesized and evaluated for their anticancer activities. Among them, N-[m-(trifluoromethoxy)phenyl] alepterolamide displayed comparable activity (IC50 =4.20±0.21 μM) in MCF-7 cells. Moreover, mechanistic investigations indicated this compound was significantly capable of diminishing cell proliferation and viability of MCF-7 cells. After treatment with N-[m-(trifluoromethoxy)phenyl] alepterolamide, a significant increase in cleaved caspase-9, cleaved caspase-3, cleaved poly (ADP-ribose) polymerase (PARP) and Bax/Bcl2 ratio were observed in MCF-7 cells, leading to caspase-dependent apoptotic pathways. Further studies showed this compound promoted cellular apoptosis and inhibited migration in MCF-7 cells via modulation of the Akt/p70S6K signaling pathway. All these results revealed the potential of N-[m-(trifluoromethoxy)phenyl] alepterolamide as an appealing therapeutic drug candidate for breast cancer.
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Affiliation(s)
- Nina Wang
- Department of Chemical Biology and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Lei Zhang
- College of Life Sciences, Shanghai Normal University, Shanghai, 201418, P.R. China
| | - Junjie Yu
- College of Life Sciences, Shanghai Normal University, Shanghai, 201418, P.R. China
| | - Kaili Chang
- Department of Chemical Biology and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Minghui Fan
- Department of Chemical Biology and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Zi Liu
- Department of Chemical Biology and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Liang Ma
- Department of Chemical Biology and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Jianguo Cao
- College of Life Sciences, Shanghai Normal University, Shanghai, 201418, P.R. China
| | - Guozheng Huang
- Department of Chemical Biology and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
- College of Life Sciences, Shanghai Normal University, Shanghai, 201418, P.R. China
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7
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He E, Shi B, Liu Z, Chang K, Zhao H, Zhao W, Cui H. Identification of the molecular subtypes and construction of risk models in neuroblastoma. Sci Rep 2023; 13:11790. [PMID: 37479876 PMCID: PMC10362029 DOI: 10.1038/s41598-023-35401-3] [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] [Received: 12/23/2022] [Accepted: 05/17/2023] [Indexed: 07/23/2023] Open
Abstract
The heterogeneity of neuroblastoma directly affects the prognosis of patients. Individualization of patient treatment to improve prognosis is a clinical challenge at this stage and the aim of this study is to characterize different patient populations. To achieve this, immune-related cell cycle genes, identified in the GSE45547 dataset using WGCNA, were used to classify cases from multiple datasets (GSE45547, GSE49710, GSE73517, GES120559, E-MTAB-8248, and TARGET) into subgroups by consensus clustering. ESTIMATES, CIBERSORT and ssGSEA were used to assess the immune status of the patients. And a 7-gene risk model was constructed based on differentially expressed genes between subtypes using randomForestSRC and LASSO. Enrichment analysis was used to demonstrate the biological characteristics between different groups. Key genes were screened using randomForest to construct neural network and validated. Finally, drug sensitivity was assessed in the GSCA and CellMiner databases. We classified the 1811 patients into two subtypes based on immune-related cell cycle genes. The two subtypes (Cluster1 and Cluster2) exhibited distinct clinical features, immune levels, chromosomal instability and prognosis. The same significant differences were demonstrated between the high-risk and low-risk groups. Through our analysis, we identified neuroblastoma subtypes with unique characteristics and established risk models which will improve our understanding of neuroblastoma heterogeneity.
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Affiliation(s)
- Enyang He
- Tianjin Medical University, Tianjin, China
- Graduate School of Tianjin Medical University, Tianjin, China
| | - Bowen Shi
- Tianjin Medical University, Tianjin, China
- Graduate School of Tianjin Medical University, Tianjin, China
| | - Ziyu Liu
- Tianjin Medical University, Tianjin, China
- Graduate School of Tianjin Medical University, Tianjin, China
| | - Kaili Chang
- Tianjin Medical University, Tianjin, China
- Graduate School of Tianjin Medical University, Tianjin, China
| | - Hailan Zhao
- Tianjin Medical University, Tianjin, China
- Basic Medical Sciences School of Tianjin Medical University, Tianjin, China
| | - Wei Zhao
- Tianjin Medical University, Tianjin, China
- Basic Medical Sciences School of Tianjin Medical University, Tianjin, China
| | - Hualei Cui
- Tianjin Medical University, Tianjin, China.
- Tianjin Children's Hospital, Tianjin, China.
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8
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Zhang M, Lin J, Song K, Chang K, Dai X, Zang Y, Zhu D. Iminyl-Radical-Mediated Formation of Covalent Au-N Bonds for Molecular Junctions. J Am Chem Soc 2023; 145:6480-6485. [PMID: 36882381 DOI: 10.1021/jacs.3c00453] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The interaction between organic radicals and transition metals plays a crucial role in radical-mediated chemical reactions, functional devices, and biocatalysis. Characterizing such interactions, however, remains a long-standing challenge due to the inherently high reactivity of radical species. Here, using a scanning tunneling microscope breaking junction (STM-BJ) technique, we are able to detect the interaction mode between iminyl radicals and the gold surface at a single molecule level. We show that the free iminyl radicals generated through photochemical N-O bond homolysis of oxime esters react toward the gold electrode surface and produce covalent Au-N bonds. Intriguingly, we find that the Au-N bonding reactions lead to the formation of robust and highly conductive single-molecule junctions. These findings provide not only insights into the mechanism of iminyl-radical-involved reactions but also a facile photolysis method to create a new type of covalent electrode-molecule bonding contact for molecular devices.
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Affiliation(s)
- Mingliang Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfeng Lin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kai Song
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Kaili Chang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaojuan Dai
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yaping Zang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daoben Zhu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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9
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Tang JK, Wang YX, Chang K, Zhang DB. Polarization due to emergent polarity in elemental semiconductor thinfilms under bending. J Phys Condens Matter 2022; 51:015501. [PMID: 36301713 DOI: 10.1088/1361-648x/ac9dd8] [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] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Polarization via strain engineering provides a facial way to functionalize materials. We investigate the origin of electronic polarization in the bent elemental semiconductor thinfilms by combining analytical modeling with quantum mechanical simulation. A bond orbital model reveals a polarity of covalent bonds induced by strain gradient such that polarization along the strain gradient dimension can be induced, giving rise to the flexoelectric effect. At strain gradient1/R=0.01 nm-1, the net charge differences between the two sides are5×10-4e,2.5×10-3eand7.2×10-3efor C, Si and Ge films respectively. On the other hand, due to the emergent bond polarity, the polarization can be effectively tuned by normal strain applied to the bent film, mimicking the piezoelectric effect. Simulations using the generalized Bloch theorem strongly support this revelation. Findings have important implications for delineating the formation of polarization and related phenomena in semiconductors.
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Affiliation(s)
- J-K Tang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Y-X Wang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, People's Republic of China
| | - K Chang
- SKLSM, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083, People's Republic of China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, People's Republic of China
| | - D-B Zhang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, People's Republic of China
- Beijing Computational Science Research Center, Beijing 100193, People's Republic of China
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10
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Yi X, Chen Y, Chang K, Zheng Y, Li X. Laparoscopic-Assisted Transanal Total Mesorectal Excision for a Patient with Bowel Endometriosis. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.187] [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: 11/25/2022]
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11
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Ruan J, Tian Q, Wang Y, Chang K, Yi X. 8659 Interleukin-33 Promotes Endometriosis Fibrosis by Inducing Fibroblast to Myofibroblast Transformation. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.455] [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: 11/25/2022]
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12
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Tian Q, Zheng Y, Chang K, Yi X. 8795 Impact of Surgical Procedures on Intestinal Function and Quality of Life in Patients with Deep Endometriosis: A Prospective Study. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.486] [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: 11/27/2022]
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13
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Parnham JC, Chang K, Rauber F, Levy RB, von Hinke S, Laverty AA, Millett C, Vamos EP. The ultra-processed food content of school meals and packed lunches in the United Kingdom (2008-2017). Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac129.416] [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: 11/13/2022] Open
Abstract
Abstract
Background
British children have the highest ultra-processed food (UPF) intake in Europe, which is linked to adverse health outcomes. Schools are posited as a setting for dietary intervention, yet the level of UPFs consumed at schools is currently unknown. This study aimed to describe the UPF content of school food in the UK, explore the UPF content of school meals and packed lunches (food from home) and examine whether UPF differs by children's household income.
Methods
A pooled cross-sectional analysis of primary (4-11 years, n = 1,895) and secondary schoolchildren (11-18 years, n = 1,408) from the UK's National Diet and Nutrition Survey (2008-2017) was conducted. Food diaries recorded student's meal-type (school meal/packed lunch). UPF intake was defined using the NOVA food classification system. Quantile regression models assessed the association between meal-type and lunchtime UPF intake (%kcal and % grams). Models were stratified by school phase (primary/secondary) and interacted meal-type with income.
Results
Schoolchildren consumed most of their lunch as UPF, with higher median intakes in secondary schoolchildren than primary schoolchildren (77.8 %kcal vs 72.6 %kcal). School meals were associated with lower median UPF intake (%kcal) in both primary (-20 percentage-points[pp] [95% CI -22.2, -17.4]) and secondary schoolchildren (-11pp [-16.0,-7.0]) compared with packed lunches. Results were similar when UPF %g was analysed. Overall, income was inversely associated with UPF content. However, in primary schoolchildren there was no significant income gradient in the UPF(%g) content of school meals.
Conclusions
In the first nationally representative study, we showed that on average UPF intake was high in all UK schoolchildren. Higher UPF intakes were observed in packed lunch consumers, secondary schoolchildren, and those with a lower income. Procurement policies must be revaluated to protect children from high UPF intake.
Funders: NIHR School for Public Health Research
Key messages
• In the first study of ultra-processed food content of UK school food, we show that children consumed around three quarters of their energy as ultra-processed food at lunch.
• Children who were older, took food from home or were from a low-income household were more likely to consume higher levels of ultra-processed food. Regulation is needed to protect these children.
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Affiliation(s)
- JC Parnham
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
| | - K Chang
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
| | - F Rauber
- Department of Nutrition, University of São Paulo , São Paulo, Brazil
- Department of Preventive Medicine, University of São Paulo , São Paulo, Brazil
| | - RB Levy
- Department of Nutrition, University of São Paulo , São Paulo, Brazil
- Department of Preventive Medicine, University of São Paulo , São Paulo, Brazil
| | - S von Hinke
- School of Economics, University of Bristol , Bristol, UK
| | - AA Laverty
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
| | - C Millett
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
| | - EP Vamos
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
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14
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Kyriakos CN, Qi D, Chang K, Laverty AA, Filippidis FT. Global market trends of flavour capsule and menthol cigarettes in 78 countries, 2010-2020. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac129.037] [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: 11/14/2022] Open
Abstract
Abstract
Background
Flavoured tobacco products, including innovative flavour capsule cigarettes (FCCs) and menthol cigarettes, can increase appeal and encourage smoking initiation and use. Global epidemiological data on these products are scarce.
Methods
This study examined market trends of FCCs and menthol (non-capsule) cigarettes across 78 countries from 2010 to 2020 and assessed ecological-level factors associated with market shares of these products. Market share and retail volume data came from Euromonitor Passport and country-specific sociodemographic data come from the WHO and World Bank. Adjusted linear fixed effects panel regression analyses were used to evaluate the relationship between predictors variables and market outcomes.
Results
Global total retail volume of FCCs increased over time (0.2% in 2010 to 4.5% in 2020) and market share was associated with year and unemployment rate and inversely associated with % urban population and smoking prevalence (p < 0.001). In contrast, menthol retail volume decreased over time (5.0% to 3.8%) and market share was associated with % urban population (p = 0.001) and inversely associated with year (p = 0.004) and unemployment rate (p = 0.017). The greatest market increase of FCCs was observed in the Americas region and among upper-middle income countries. In Europe, there was a decrease of 0.64 percentage points from 2019 to 2020.
Conclusions
Overall, FCCs experienced substantial global growth in the recent decade, with the exception of Europe whose slight decrease may be attributable to the European Union ban on flavours in cigarettes. Findings indicate that there is a need for increased efforts to address flavours and innovative features used in tobacco products, which are known to appeal to youth.
Key messages
• This study contributes to global monitoring of tobacco products.
• Findings can be used by advocates and policy makers to support countries in adopting measures to ban flavoured tobacco products.
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Affiliation(s)
- CN Kyriakos
- Department of Primary Care and Public Health, Imperial College London , London, UK
| | - D Qi
- Department of Primary Care and Public Health, Imperial College London , London, UK
| | - K Chang
- Department of Primary Care and Public Health, Imperial College London , London, UK
| | - AA Laverty
- Department of Primary Care and Public Health, Imperial College London , London, UK
| | - FT Filippidis
- Department of Primary Care and Public Health, Imperial College London , London, UK
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Hou ZF, Yuan ZH, Chang K, Cao YH, Guan FX, Gao Y. NLRP3 rs1539019 is significantly associated with chronic obstructive pulmonary disease in a Chinese Han population: a case-control study. Eur Rev Med Pharmacol Sci 2022; 26:5821-5828. [PMID: 36066157 DOI: 10.26355/eurrev_202208_29521] [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 COPD is a complex respiratory disease characterized by chronic airway inflammation and the airflow limitations are not fully reversible due to the combination of genetic and environmental factors. Genetic factors such as polymorphisms, may affect the susceptibility of COPD. In the present study, we examined the association between the polymorphisms of three genes and COPD risk in a Chinese Han population. PATIENTS AND METHODS A total of 375 COPD patients and 284 control subjects were recruited from November 2018 to June 2021. Data on demographic basic information, smoking status, history of coal dust exposure, and peripheral blood were collected from subjects of two groups. Three polymorphisms (NLRP3 rs1539019, LAMB1 rs4320486, IL-6 rs1800796) were analyzed. Logistic analysis was used to evaluate the genetic contribution of selected SNPs to COPD susceptibility. RESULTS The AC genotype of NLRP3 rs1539019 significantly decreased COPD risk compared with CC genotype (adjusted OR = 0.508, 95% CI 0.336-0.767). In the stratification analyses, the AC genotype significantly decreased the risk of COPD in subjects aged 60 and over (p=0.005; adjusted OR = 0.553; 95% CI 0.366-0.835) with current smoking status (p=0.002; adjusted OR = 0.419; 95% CI 0.240-0.732) when compared with AA+CC genotype. Moreover, a significantly decreased risk for GOLD III COPD was found in genotype AC of NLRP3 rs1539019 (p=0.006; adjusted OR = 0.502; 95% CI 0.306-0.822). CONCLUSIONS Our present study revealed that the genotype AC of NLRP3 rs1539019 is related to a decreased risk of COPD in a Chinese Han population, a large-sample, multi-center, multi-ethnic study is needed to further confirm our study.
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Affiliation(s)
- Z-F Hou
- Department of Pulmonary and Critical Care Medicine, Sinopharm Tongmei General Hospital, Datong, China.
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16
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Wang X, Chang K, Liu W, Wang H, Chen J, Liu K, Chen J, Chen K. Enhanced near-field coupling and tunable topological transitions in hyperbolic van der Waals metasurfaces for optical nanomanipulation. Nanoscale 2022; 14:7075-7082. [PMID: 35475504 DOI: 10.1039/d1nr08490a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Hyperbolic metasurfaces based on van der Waals (vdW) materials support propagation of extremely anisotropic polaritons towards nanoscale light compression and manipulation, and thus have great potential in the applications of planar hyperlenses, nanolasing, quantum optics, and ultrasensitive infrared spectroscopy. Two-dimensional hexagonal boron nitride (h-BN) subwavelength gratings as vdW metasurfaces can manipulate the propagation of hyperbolic polaritons at the level of single atomic layers, possessing a higher degree of field confinement and lower losses than conventional media. However, active manipulation of hyperbolic polaritonic waves in h-BN midinfrared metasurfaces remains elusive. Herein, we provide an effective strategy for tunable topological transitions in mid-infrared hyperbolic vdW metasurfaces (HMSs) via enhanced plasmon-phonon polaritons coupling. They are composed of in-plane heterostructures of thin-layer h-BN and monolayer graphene strips (iHBNG) as meta-atoms. The graphene-plasmon-enhanced near-field coupling enables a large tunability of light fields by tailoring the chemical potentials of graphene without frequency shift, which involves topological transitions of polaritonic modes, unidirectional polariton propagation, and local-density-of-state enhancement. Simulated visual near-field distributions of iHBNG metasurfaces reveal the unique transformations of hyperbolic polariton propagations, distinguished from that of individual h-BN and graphene metasurfaces. Our findings provide a platform of optical nanomanipulation towards emerging on-chip polaritonic devices.
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Affiliation(s)
- Xueli Wang
- Center for the Physics of Low-Dimensional Materials, School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
| | - Kaili Chang
- Center for the Physics of Low-Dimensional Materials, School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
| | - Weitao Liu
- Center for the Physics of Low-Dimensional Materials, School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
| | - Hongqin Wang
- Center for the Physics of Low-Dimensional Materials, School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
| | - Junying Chen
- Center for the Physics of Low-Dimensional Materials, School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
| | - Kaihui Liu
- State Key Laboratory for Mvaesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Jianing Chen
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ke Chen
- Center for the Physics of Low-Dimensional Materials, School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
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George E, Flagg E, Chang K, Bai HX, Aerts HJ, Vallières M, Reardon DA, Huang RY. Radiomics-Based Machine Learning for Outcome Prediction in a Multicenter Phase II Study of Programmed Death-Ligand 1 Inhibition Immunotherapy for Glioblastoma. AJNR Am J Neuroradiol 2022; 43:675-681. [PMID: 35483906 PMCID: PMC9089247 DOI: 10.3174/ajnr.a7488] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/17/2022] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND PURPOSE Imaging assessment of an immunotherapy response in glioblastoma is challenging due to overlap in the appearance of treatment-related changes with tumor progression. Our purpose was to determine whether MR imaging radiomics-based machine learning can predict progression-free survival and overall survival in patients with glioblastoma on programmed death-ligand 1 inhibition immunotherapy. MATERIALS AND METHODS Post hoc analysis was performed of a multicenter trial on the efficacy of durvalumab in glioblastoma (n = 113). Radiomics tumor features on pretreatment and first on-treatment time point MR imaging were extracted. The random survival forest algorithm was applied to clinical and radiomics features from pretreatment and first on-treatment MR imaging from a subset of trial sites (n = 60-74) to train a model to predict long overall survival and progression-free survival and was tested externally on data from the remaining sites (n = 29-43). Model performance was assessed using the concordance index and dynamic area under the curve from different time points. RESULTS The mean age was 55.2 (SD, 11.5) years, and 69% of patients were male. Pretreatment MR imaging features had a poor predictive value for overall survival and progression-free survival (concordance index = 0.472-0.524). First on-treatment MR imaging features had high predictive value for overall survival (concordance index = 0.692-0.750) and progression-free survival (concordance index = 0.680-0.715). CONCLUSIONS A radiomics-based machine learning model from first on-treatment MR imaging predicts survival in patients with glioblastoma on programmed death-ligand 1 inhibition immunotherapy.
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Affiliation(s)
- E George
- From the Department of Radiology and Biomedical Imaging (E.G.), University of California San Francisco, San Francisco, California
| | - E Flagg
- Department of Radiology (E.F., R.Y.H.), Brigham and Women's Hospital, Boston, Massachusetts
| | - K Chang
- Massachusetts Institute of Technology (K.C.), Cambridge, Massachusetts
| | - H X Bai
- Department of Diagnostic Imaging (H.X.B.), Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - H J Aerts
- Artificial Intelligence in Medicine Program (H.J.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Departments of Radiation Oncology and Radiology (H.J.A.), Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - M Vallières
- Department of Computer Science (M.V.), Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - D A Reardon
- Center for Neuro Oncology (D.A.R.), Dana-Farber Cancer Institute, Boston, Massachusetts
| | - R Y Huang
- Department of Radiology (E.F., R.Y.H.), Brigham and Women's Hospital, Boston, Massachusetts
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18
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Strand N, Wie C, Peck J, Maita M, Singh N, Dumbroff J, Tieppo Francio V, Murphy M, Chang K, Dickerson DM, Maloney J. Correction to: Small Fiber Neuropathy. Curr Pain Headache Rep 2022; 26:439. [PMID: 35460493 DOI: 10.1007/s11916-022-01050-w] [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: 11/25/2022]
Affiliation(s)
- N Strand
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA.
| | - C Wie
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA
| | - J Peck
- Performing Arts Medicine Department, Shenandoah University, Winchester, USA
| | - M Maita
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA
| | - N Singh
- OrthoAlabama Spine and Sports, Birmingham, AL, USA
| | - J Dumbroff
- Mount Sinai Morningside and West Department of Anesthiology, New York, NY, USA
| | - V Tieppo Francio
- Department of Rehabilitation Medicine, The University of Kansas Medical Center, Kansas City, KS, USA
| | - M Murphy
- Department of Rehabilitation Medicine, The University of Kansas Medical Center, Kansas City, KS, USA
| | - K Chang
- Department of Anesthiology and Critical Care, Emory University, Atlanta, GA, USA
| | - D M Dickerson
- NorthShore University Healthsystem, Evanston, IL, USA
- University of Chicago Medicine, Chicago, IL, USA
| | - J Maloney
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA
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19
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Strand N, Wie C, Peck J, Maita M, Singh N, Dumbroff J, Tieppo Francio V, Murphy M, Chang K, Dickerson DM, Maloney J. Small Fiber Neuropathy. Curr Pain Headache Rep 2022; 26:429-438. [PMID: 35384587 DOI: 10.1007/s11916-022-01044-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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] [Accepted: 02/28/2022] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW This narrative review aims to summarize advances in the field of small fiber neuropathy made over the last decade, with emphasis on novel research highlighting the distinctive features of SFN. RECENT FINDINGS While the management of SFNs is ideally aimed at treating the underlying cause, most patients will require pain control via multiple, concurrent therapies. Herein, we highlight the most up-to-date information for diagnosis, medication management, interventional management, and novel therapies on the horizon. Despite the prevalence of small fiber neuropathies, there is no clear consensus on guidelines specific for the treatment of SFN. Despite the lack of specific guidelines for SFN treatment, the most recent general neuropathic pain guidelines are based on Cochrane studies and randomized controlled trials (RCTs) which have individually examined therapies used for the more commonly studied SFNs, such as painful diabetic neuropathy and HIV neuropathy. The recommendations from current guidelines are based on variables such as number needed to treat (NNT), safety, ease of use, and effect on quality of life.
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Affiliation(s)
- N Strand
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA.
| | - C Wie
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA
| | - J Peck
- Performing Arts Medicine Department, Shenandoah University, Winchester, USA
| | - M Maita
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA
| | - N Singh
- OrthoAlabama Spine and Sports, Birmingham, AL, USA
| | - J Dumbroff
- Mount Sinai Morningside and West Department of Anesthesiology, New York, NY, USA
| | - V Tieppo Francio
- Department of Rehabilitation on Medicine, The University of Kansas Medical Center, Kansas City, KS, USA
| | - M Murphy
- Department of Rehabilitation on Medicine, The University of Kansas Medical Center, Kansas City, KS, USA
| | - K Chang
- Department of Anesthesiology and Critical Care, Emory University, Atlanta, GA, USA
| | - D M Dickerson
- NorthShore University HealthSystem, Evanston, IL, USA
- University of Chicago Medicine, Chicago,, IL, USA
| | - J Maloney
- Division of Pain Medicine, Mayo Clinic Hospital, Phoenix, AZ, USA
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Ramirez R, Earland N, Harris P, Gerndt S, Wahle B, Chang K, Chaudhuri A, Jose Z. Surgical Drain Fluid as a Novel Liquid Biopsy Analyte to Measure Postoperative Minimal Residual Disease in HPV+ Oropharyngeal Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.324] [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: 10/20/2022]
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Chang K, Khandpur N, Neri D, Touvier M, Huybrechts I, Millett C, Vamos EP. Childhood consumption of ultra-processed foods and adiposity trajectories: a UK birth cohort study. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab164.649] [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: 11/14/2022] Open
Abstract
Abstract
Background
Worldwide consumption of ultra-processed foods (UPFs) is continued to rise. Growing evidence has linked higher consumption with elevated risks of obesity and non-communicable diseases in adults. However, the influence of UPFs on long-term adiposity trajectories have not been evaluated in children.
Methods
Prospective birth cohort data were obtained from the Avon Longitudinal Study of Parents and Children. English children with baseline dietary intakes from 3-day food diaries and repeated adiposity measures were followed up from ages 7-24 years. Outcomes included body mass index (BMI), weight, waist circumference (WC), fat mass index (FMI) and body fat percentage. UPFs were identified using the NOVA food classification. Child's consumption of UPFs was derived as a percentage of its weight contribution (gram per day) in the total diet and categorised into quintiles. Longitudinal associations were assessed using linear growth curve models and adjusted for study covariates.
Results
Of the 9025 children followed up over a median (IQR) of 10.2 (5.2-16.4) years. Trajectories of BMI, FMI, weight and WC increased by an additional 0.06 (95% CI, 0.04-0.08) kg/m2, 0.03 (0.01-0.05) kg/m2, 0.20 (0.11-0.28) kg and 0.17 (0.11-0.22) cm per year among those in the highest (vs. lowest) quintile of UPF consumption. Evidence of dose-response relationships were consistently observed with those in the two highest quintiles of UPF consumption showing significantly more rapid progression of BMI, weight, and WC.
Conclusions
Radical and effective public health actions that reduce children's exposure and consumption of UPFs are urgently needed to address the obesity epidemic in England and internationally.
Funding: CM and EV are funded by the National Institute for Health Research (NIHR) School for Public Health Research (SPHR), Grant Reference Number PD-SPH-2015. The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care.
Key messages
Children with highest (vs. lowest) quintile of ultra-processed food consumption had more rapid regression of BMI, FMI, weight and waist circumference from ages 7-24 years. Dose-response relationships were consistently observed in the two highest quintile of ultra-processed food consumption showing more rapid progression of BMI, weight and waist circumference.
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Affiliation(s)
- K Chang
- Public Health Policy Evaluation Unit, Imperial College London, London, UK
| | - N Khandpur
- Department of Nutrition, University of São Paulo, São Paulo, Brazil
- Center for Epidemiological Research in Nutrition and Health, University of São Paulo, São Paulo, Brazil
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA
| | - D Neri
- Department of Nutrition, University of São Paulo, São Paulo, Brazil
- Center for Epidemiological Research in Nutrition and Health, University of São Paulo, São Paulo, Brazil
| | - M Touvier
- Sorbonne Paris Nord University, Inserm U1153, Paris, France
| | - I Huybrechts
- Nutrition and Metabolism Branch, IARC, Lyon, France
| | - C Millett
- Public Health Policy Evaluation Unit, Imperial College London, London, UK
| | - EP Vamos
- Public Health Policy Evaluation Unit, Imperial College London, London, UK
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22
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Xin JF, Sun YG, Xia S, Chang K, Zhu Y, Liu X, An R, Su WC, Shen WB. [Clinical features of primary isolated chylopericardium: a retrospective review study]. Zhonghua Wai Ke Za Zhi 2021; 59:507-512. [PMID: 34102736 DOI: 10.3760/cma.j.cn112139-20200724-00577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the clinical characteristics and abnormal reflux branches of primary isolated chylopericardium. Methods: Totally 43 patients with primary isolated chylopericardium at Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital,Capital Medical University from June 2007 to January 2018 were recruited in this study. There were 21 males and 22 females, aging (23.0±15.9) years (range: 2 to 57 years). The levels of triglyceride, total cholesterol, total protein and albumin in pericardial effusion and blood were compared by paired-t test, and the characteristics of lymphatic system in direct lymphangiography and postoperative CT were analyzed. Results: Pericardial effusion was mainly milky white and monocytes, and 95.3%(41/43) were positive for Rivalta test. The level of triglyceride in pericardial effusion was significantly higher than that of blood ((9.67±5.11) mmol/L vs. (1.28±0.89) mmol/L, t=10.557, P<0.01), and the levels of total cholesterol ((2.19±0.52) mmol/L vs. (4.12±1.06) mmol/L, t=-3.732, P<0.01), total protein ((61.25±16.17) g/L vs. (68.26±8.30) g/L, t=-2.958, P=0.005) and albumin ((36.63±7.06) g/L vs. (42.32±4.73) g/L, t=-5.747, P<0.01) were significantly lower than that of blood. In the direct lymphangiography, the imaging of iliac and retroperitoneal lymphatics showed dilated or tortuous in 90.7% (39/43), the thoracoabdominal segment of thoracic duct showed dilation in 46.5% (20/43), and cervical thoracic duct imaging showed dilation in 44.2% (19/43) and stenosis in 55.8% (24/43). The image of lipiodol flowing into the vein showed obstruction at the venous angle. There were 60.5%(26/43) of the patients with lipiodol reflux through the bronchomediastinal trunk (type Ⅰ), 11.6%(5/43) with lipiodol diffusion to the pericardium through the abnormal pathway from the thoracic segment of the thoracic duct (type Ⅱ), while no communication pathway between the thoracic duct and the pericardial cavity (type Ⅲ) found in 27.9%(12/43). CT images obtained after the direct lymphangiography showed 34.9%(15/43) had abnormal distribution of lipiodol in pericardium, mediastinal lymph nodes and lung hilar lymph nodes, 46.5%(20/43) in mediastinal lymph nodes and lung hilar lymph nodes, 14.0%(6/43) only mediastinal lymph nodes, 4.6%(2/43) had no lipiodol in the above areas. Conclusions: Pericardial effusion compared with same period blood, has higher triglyceride, lower total cholesterol, total protein and albumin. The obstruction of the cervical segment of the thoracic duct and the formation of abnormal reflux branches would be corelative to primary isolated chylopericardium.
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Affiliation(s)
- J F Xin
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Y G Sun
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - S Xia
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - K Chang
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Y Zhu
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - X Liu
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - R An
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - W C Su
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - W B Shen
- Department of Lymphatic Surgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
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Qin Q, Chang K, Wu Q, Fan W, Gu Y, Niu J, Liu X. Undernutrition when young and the risk of poor renal function in adulthood in women with diabetes in Shanghai, China. J Int Med Res 2021; 49:3000605211016671. [PMID: 34057836 PMCID: PMC8170295 DOI: 10.1177/03000605211016671] [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] [Indexed: 11/12/2022] Open
Abstract
Objective To evaluate the effect of undernutrition when young on the risk of poor renal
function in adulthood in women with diabetes mellitus. Methods We studied diabetic women born between 1921 and 1958 who were exposed to the
1959-to-1962 Chinese famine when they were 0 to 37 years old. Exposure age
was classified as young adulthood (18 to 37 years), adolescence (10 to 17
years), or childhood (0 to 9 years). The Adolescence group, which was
provided with the largest amount of food during the famine, was used as the
control group, and variance and binary logistic regression analyses were
performed. Results The prevalences of low estimated glomerular filtration rate (eGFR) in the
Childhood, Adolescence, and Young adulthood groups were 5.26%, 22.39%, and
79.24%, respectively. The risk of low eGFR for the Young adulthood group
(odds ratio [OR] 1.65, 95% confidence interval [CI] 1.10, 2.48), but not for
the Childhood group (OR 1.10, 95% CI 0.68, 1.78), was higher than that for
the Adolescence group after adjustment for potential confounders. Conclusions Undernutrition during young adulthood significantly increases the risk of
renal dysfunction in adult women with diabetes. Therefore, the nutrition of
less affluent young women should be improved.
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Affiliation(s)
- Qiaojing Qin
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Kaili Chang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qing Wu
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Weifeng Fan
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Yong Gu
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China.,Department of Nephrology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jianying Niu
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China.,Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Xueguang Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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Yuan C, Chang K, Xu C, Li Q, Du Z. Corrigendum to "High expression of DLL3 is associated with a poor prognosis and immune infiltration in invasive breast cancer patients" [Translational Oncology 14 (2021) 101080]. Transl Oncol 2021; 14:101120. [PMID: 34023559 DOI: 10.1016/j.tranon.2021.101120] [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: 11/26/2022] Open
Affiliation(s)
- Chong Yuan
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Kaili Chang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Chenyue Xu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Qingquan Li
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
| | - Zunguo Du
- Department of pathology, Huashan hospital, Fudan university, No.12 Middle Urumqi road, Shanghai, 200032, China.
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Lu Y, Hong C, Chang K, Lee C. 618 Glucose transporter 1 enhances glycolysis, oxidative stress, and fibroblast proliferation in keloid. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.647] [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: 10/21/2022]
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Chang K, Yuan C, Liu X. Ferroptosis-Related Gene Signature Accurately Predicts Survival Outcomes in Patients With Clear-Cell Renal Cell Carcinoma. Front Oncol 2021; 11:649347. [PMID: 33996565 PMCID: PMC8120155 DOI: 10.3389/fonc.2021.649347] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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: 01/04/2021] [Accepted: 04/07/2021] [Indexed: 12/29/2022] Open
Abstract
As a type of regulated cell death induced by Ras selective lethal (RSL) compounds such as erasti, ferroptosis is characterized by iron-dependent lipid peroxide accumulation to lethal levels. At present, little is known about the role of ferroptosis-related genes in clear-cell renal cell carcinoma (ccRCC). In the present study, the expression data of ferroptosis-related genes in ccRCC were obtained from the Cancer Genome Atlas (TCGA), and COX regression analysis was performed to construct a risk model of ferroptosis prognostic signature. The GEO database was used to verify the accuracy of the model. The following findings were made: the results reveal that the prognostic signature constructed by 11 ferroptosis genes (CARS, CD44, DPP4, GCLC, HMGCR, HSPB1, NCOA4, SAT1, PHKG2, GOT1, HMOX1) was significantly related to the overall survival (OS) of ccRCC patients based on the lowest Akaike information criterion (AIC); multivariate analysis indicates that ferroptosis-related gene prognostic signature was an independent prognostic factor in ccRCC patients; the calibration curve and c-index value (0.77) demonstrate that the nomogram with the signature could predict the survival of ccRCC patients; and enrichment analysis shows that the high-risk group were enriched in humoral immunity and receptor interaction pathways. The aforementioned findings indicate that the ferroptosis-related gene signature can accurately predict the prognosis of ccRCC patients and provide valuable insights for individualized treatment.
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Affiliation(s)
- Kaili Chang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Chong Yuan
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xueguang Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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Yuan C, Chang K, Xu C, Li Q, Du Z. High expression of DLL3 is associated with a poor prognosis and immune infiltration in invasive breast cancer patients. Transl Oncol 2021; 14:101080. [PMID: 33915517 PMCID: PMC8093948 DOI: 10.1016/j.tranon.2021.101080] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Previous studies have shown the prognostic value of delta like canonical Notch ligand 3 (DLL3) in patients with different types of tumors, but the role and predictive value of DLL3 in invasive breast cancer (IBC) have not been reported. In this study, we explored the prognostic ability and potential ways of DLL3 in IBC patients. METHODS We retrospectively enrolled 130 IBC patients from a single institution from 2004 to 2019 for bioinformatics and statistical analysis. The Cancer Genome Atlas breast invasive carcinoma (TCGA-BRCA) cohort was used for verification. RESULTS High expression of DLL3 was associated with overall survival (OS) in IBC patients (P = 0.023). Multivariate analysis further showed that DLL3 expression was an independent prognostic factor (hazard ratio [HR]: 1.08; 95% confidence interval [CI]: 1.01-1.15; P = 0.017). Time-dependent receiver operating characteristic (ROC) with the area under the curve (0.786) demonstrated that DLL3 expression can predict the survival outcome of IBC patients. Furthermore, the expression of DLL3 was related to a variety of tumor infiltrating immune cells (TIICs), particularly T cells regulatory (Tregs). Gene set enrichment analysis (GSEA) and immunohistochemistry (IHC) results indicated that DLL3 was closely related to p53 signaling pathway. CONCLUSIONS High expression of DLL3 was associated with poor prognosis and immune cell infiltration in IBC patients. Moreover, P53 signaling pathway may be the key pathway.
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Affiliation(s)
- Chong Yuan
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Kaili Chang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Chenyue Xu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Qingquan Li
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
| | - Zunguo Du
- Department of pathology, Huashan hospital, Fudan university, No.12 Middle Urumqi road, Shanghai 200032, China.
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Chang K, Yuan C, Liu X. A New RBPs-Related Signature Predicts the Prognosis of Colon Adenocarcinoma Patients. Front Oncol 2021; 11:627504. [PMID: 33767995 PMCID: PMC7985171 DOI: 10.3389/fonc.2021.627504] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 11/09/2020] [Accepted: 01/27/2021] [Indexed: 11/13/2022] Open
Abstract
The dysregulation of RNA binding proteins (RBPs) is closely related to tumorigenesis and development. However, the role of RBPs in Colon adenocarcinoma (COAD) is still poorly understood. We downloaded COAD’s RNASeq data from the Cancer Genome Atlas (TCGA) database, screened the differently expressed RBPs in normal tissues and tumor, and constructed a protein interaction network. COAD patients were randomly divided into a training set (N = 315) and a testing set (N = 132). In the training set, univariate Cox analysis identified 12 RBPs significantly related to the prognosis of COAD. By multivariate COX analysis, we constructed a prognostic model composed of five RBPs (CELF4, LRRFIP2, NOP14, PPARGC1A, ZNF385A) based on the lowest Akaike information criterion. Each COAD patient was scored according to the model formula. Further analysis showed that compared with the low-risk group, the overall survival rate (OS) of patients in the high-risk group was significantly lower. The area under the curve of the time-dependent receiver operator characteristic (ROC) curve was 0.722 in the training group and 0.738 in the test group, which confirmed a good prediction feature. In addition, a nomogram was constructed based on clinicopathological characteristics and risk scores. C-index and calibration curve proved the accuracy in predicting the 1-, 3-, and 5-year survival rates of COAD patients. In short, we constructed a superior prognostic and diagnostic signature composed of five RBPs, which indicates new possibilities for individualized treatment of COAD patients.
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Affiliation(s)
- Kaili Chang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Chong Yuan
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xueguang Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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Li MD, Lang M, Deng F, Chang K, Buch K, Rincon S, Mehan WA, Leslie-Mazwi TM, Kalpathy-Cramer J. Analysis of Stroke Detection during the COVID-19 Pandemic Using Natural Language Processing of Radiology Reports. AJNR Am J Neuroradiol 2020; 42:429-434. [PMID: 33334851 DOI: 10.3174/ajnr.a6961] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 10/26/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND PURPOSE The coronavirus disease 2019 (COVID-19) pandemic has led to decreases in neuroimaging volume. Our aim was to quantify the change in acute or subacute ischemic strokes detected on CT or MR imaging during the pandemic using natural language processing of radiology reports. MATERIALS AND METHODS We retrospectively analyzed 32,555 radiology reports from brain CTs and MRIs from a comprehensive stroke center, performed from March 1 to April 30 each year from 2017 to 2020, involving 20,414 unique patients. To detect acute or subacute ischemic stroke in free-text reports, we trained a random forest natural language processing classifier using 1987 randomly sampled radiology reports with manual annotation. Natural language processing classifier generalizability was evaluated using 1974 imaging reports from an external dataset. RESULTS The natural language processing classifier achieved a 5-fold cross-validation classification accuracy of 0.97 and an F1 score of 0.74, with a slight underestimation (-5%) of actual numbers of acute or subacute ischemic strokes in cross-validation. Importantly, cross-validation performance stratified by year was similar. Applying the classifier to the complete study cohort, we found an estimated 24% decrease in patients with acute or subacute ischemic strokes reported on CT or MR imaging from March to April 2020 compared with the average from those months in 2017-2019. Among patients with stroke-related order indications, the estimated proportion who underwent neuroimaging with acute or subacute ischemic stroke detection significantly increased from 16% during 2017-2019 to 21% in 2020 (P = .01). The natural language processing classifier performed worse on external data. CONCLUSIONS Acute or subacute ischemic stroke cases detected by neuroimaging decreased during the COVID-19 pandemic, though a higher proportion of studies ordered for stroke were positive for acute or subacute ischemic strokes. Natural language processing approaches can help automatically track acute or subacute ischemic stroke numbers for epidemiologic studies, though local classifier training is important due to radiologist reporting style differences.
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Affiliation(s)
- M D Li
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - M Lang
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - F Deng
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - K Chang
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - K Buch
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - S Rincon
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - W A Mehan
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
| | - T M Leslie-Mazwi
- Neurology and Neurosurgery (T.M.L.-M.), Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - J Kalpathy-Cramer
- From the Departments of Radiology (M.D.L., M.L., F.D., K.C., K.B., S.R., W.A.M., J.K.-C.)
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Kudsi OY, Chang K, Bou-Ayash N. Robotic approach to delayed anastomotic leakage after ileocaecectomy for a neuroendocrine tumour - a video vignette. Colorectal Dis 2020; 22:1470. [PMID: 32372480 DOI: 10.1111/codi.15108] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/19/2020] [Indexed: 02/08/2023]
Affiliation(s)
- O Y Kudsi
- Good Samaritan Medical Center, Brockton, Massachusetts, USA.,Tufts University School of Medicine, Brockton, Massachusetts, USA
| | - K Chang
- Good Samaritan Medical Center, Brockton, Massachusetts, USA
| | - N Bou-Ayash
- Good Samaritan Medical Center, Brockton, Massachusetts, USA
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Parnham J, Millett C, Chang K, von Hinke S, Pearson-Stuttard J, Vamos EP. The Healthy Start scheme and its association with food expenditure in low-income families in the UK. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.193] [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: 11/14/2022] Open
Abstract
Abstract
Background
The Healthy Start programme is a statutory benefit-in-kind in the United Kingdom (UK) which aims to enable low-income families to purchase fruit, vegetables, cow's milk and infant formula through the provision of vouchers. The scheme was introduced in 2006, however, the effect on food purchasing in participating households has not been evaluated within an eligible population. This study aimed to determine whether participation in the Healthy Start (HS) scheme is associated with differences in food purchasing in a representative sample of households in the United Kingdom.
Methods
Cross-sectional analysis of the Living Costs and Food Survey dataset (2010-2017). All households with a child (0-3 years) or pregnant woman were included in the analysis (n = 4,869). Multivariable quantile regression was used to compare the expenditure and quantity of fruit and vegetable, infant formula and total food purchases between Healthy Start participating, eligible non-participating, nearly-eligible and ineligible households.
Results
54% (n = 475) of eligible households participated in Healthy Start. After accounting for covariates, no significant difference was found in the quantity or expenditure of fruit and vegetable purchases between Healthy Start participating and non-participating households. Fruit and vegetable expenditure (£/week) was found to be higher in nearly eligible (β1.60; 95% CI 0.79, 2.41) and ineligible households (β2.56; 95% CI 1.77, 3.35) compared to Healthy Start eligible households.
Conclusions
The present study did not demonstrate significant differences in the fruit and vegetable expenditure of HS participating and non-participating households. The analysis demonstrates that inequalities in fruit and vegetable purchasing persists in the UK. Improved participation and increased voucher value may be needed to promote well-being and counteract the harmful effect of poverty on fruit and vegetables purchasing.
Key messages
The study found no evidence of different food purchases between Healthy Start participating and non-participating households. Increased voucher value may be needed to counteract food-price inflation. The paper reflected persistent socioeconomic inequalities in the UK, indicating the Healthy Start scheme does not sufficiently counteract the harmful effects of poverty on food purchasing.
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Affiliation(s)
- J Parnham
- Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK
| | - C Millett
- Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK
| | - K Chang
- Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK
| | - S von Hinke
- Department of Economics, University of Bristol, Bristol, UK
- Erasmus University, Rotterdam, Netherlands
- Institute for Fiscal Studies, London, UK
| | - J Pearson-Stuttard
- Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK
| | - E P Vamos
- Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK
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Kudsi OY, Chang K, Bou‐Ayash N. Robotic low anterior resection for a distal sigmoid colon cancer during the COVID-19 pandemic- a video vignette. Colorectal Dis 2020; 22:1031. [PMID: 32790219 PMCID: PMC7436878 DOI: 10.1111/codi.15310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/23/2020] [Indexed: 02/08/2023]
Affiliation(s)
- O. Y. Kudsi
- Good Samaritan Medical CenterBrocktonMassachusettsUSA,Tufts University School of MedicineBostonMassachusettsUSA
| | - K. Chang
- Good Samaritan Medical CenterBrocktonMassachusettsUSA
| | - N. Bou‐Ayash
- Good Samaritan Medical CenterBrocktonMassachusettsUSA
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Zhou H, Hu R, Tang O, Hu C, Tang L, Chang K, Shen Q, Wu J, Zou B, Xiao B, Boxerman J, Chen W, Huang RY, Yang L, Bai HX, Zhu C. Automatic Machine Learning to Differentiate Pediatric Posterior Fossa Tumors on Routine MR Imaging. AJNR Am J Neuroradiol 2020; 41:1279-1285. [PMID: 32661052 PMCID: PMC7357647 DOI: 10.3174/ajnr.a6621] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 04/30/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND PURPOSE Differentiating the types of pediatric posterior fossa tumors on routine imaging may help in preoperative evaluation and guide surgical resection planning. However, qualitative radiologic MR imaging review has limited performance. This study aimed to compare different machine learning approaches to classify pediatric posterior fossa tumors on routine MR imaging. MATERIALS AND METHODS This retrospective study included preoperative MR imaging of 288 patients with pediatric posterior fossa tumors, including medulloblastoma (n = 111), ependymoma (n = 70), and pilocytic astrocytoma (n = 107). Radiomics features were extracted from T2-weighted images, contrast-enhanced T1-weighted images, and ADC maps. Models generated by standard manual optimization by a machine learning expert were compared with automatic machine learning via the Tree-Based Pipeline Optimization Tool for performance evaluation. RESULTS For 3-way classification, the radiomics model by automatic machine learning with the Tree-Based Pipeline Optimization Tool achieved a test micro-averaged area under the curve of 0.91 with an accuracy of 0.83, while the most optimized model based on the feature-selection method χ2 score and the Generalized Linear Model classifier achieved a test micro-averaged area under the curve of 0.92 with an accuracy of 0.74. Tree-Based Pipeline Optimization Tool models achieved significantly higher accuracy than average qualitative expert MR imaging review (0.83 versus 0.54, P < .001). For binary classification, Tree-Based Pipeline Optimization Tool models achieved an area under the curve of 0.94 with an accuracy of 0.85 for medulloblastoma versus nonmedulloblastoma, an area under the curve of 0.84 with an accuracy of 0.80 for ependymoma versus nonependymoma, and an area under the curve of 0.94 with an accuracy of 0.88 for pilocytic astrocytoma versus non-pilocytic astrocytoma. CONCLUSIONS Automatic machine learning based on routine MR imaging classified pediatric posterior fossa tumors with high accuracy compared with manual expert pipeline optimization and qualitative expert MR imaging review.
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Affiliation(s)
- H Zhou
- Department of Neurology (H.Z., L.T., B.X.), Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - R Hu
- From the School of Computer Science and Engineering (R.H., B.Z., C.Z.)
| | - O Tang
- Warren Alpert Medical School, Brown University (O.T.), Providence, Rhode Island
| | - C Hu
- Department of Neurology (C.H.), Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - L Tang
- Department of Neurology (H.Z., L.T., B.X.), Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - K Chang
- Department of Radiology (K.C.), Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Q Shen
- Radiology (Q.S., J.W.), Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - J Wu
- Radiology (Q.S., J.W.), Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - B Zou
- From the School of Computer Science and Engineering (R.H., B.Z., C.Z.)
| | - B Xiao
- Department of Neurology (H.Z., L.T., B.X.), Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - J Boxerman
- Department of Diagnostic Imaging (J.B., H.X.B.), Rhode Island Hospital
| | - W Chen
- Department of Pathology (W.C.), Hunan Children's Hospital, Changsha, Hunan, China
| | - R Y Huang
- Department of Radiology (R.Y.H.), Brigham and Women's Hospital, Boston, Massachusetts
| | - L Yang
- Departments of Neurology (L.Y.)
| | - H X Bai
- Department of Diagnostic Imaging (J.B., H.X.B.), Rhode Island Hospital
| | - C Zhu
- From the School of Computer Science and Engineering (R.H., B.Z., C.Z.)
- College of Literature and Journalism (C.Z.), Central South University, Changsha, Hunan, China
- Mobile Health Ministry of Education-China Mobile Joint Laboratory (C.Z.), China
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Kudsi OY, Gokcal F, Bou-Ayash N, Crawford AS, Chung SK, Chang K, Litwin D. Learning curve in robotic transabdominal preperitoneal (rTAPP) ventral hernia repair: a cumulative sum (CUSUM) analysis. Hernia 2020; 25:755-764. [PMID: 32495055 PMCID: PMC7268975 DOI: 10.1007/s10029-020-02228-0] [Citation(s) in RCA: 6] [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: 04/15/2020] [Accepted: 05/25/2020] [Indexed: 11/30/2022]
Abstract
Purpose rTAPP-VHR is a novel technique which may be added to a surgeon’s armamentarium. We aim to evaluate the robotic transabdominal preperitoneal ventral hernia repair (rTAPP-VHR) learning curve based on operative times while accounting for peritoneal flap integrity. Methods We performed a retrospective analysis of a database collected over a 7-year period. Patients with primary ventral hernias were included and a cumulative sum analysis(CUSUM) was used to create learning curves for three subsets of operative times. A risk-adjusted CUSUM (RA-CUSUM) accounted for repair quality based on peritoneal flap completeness. The flap was considered as incomplete when peritoneal gaps were unable to be closed. Results 105 patients undergoing rTAPP-VHR were included. Learning curves were created for skin-to-skin, console, and off-console times. Patients were divided into three phases. In terms of skin-to-skin times, both phase 2&3 had a mean 11 min shorter than that of phase 1 (p = 0.0498, p = 0.0245, respectively), with a steady decrease after forty-six cases. An incomplete peritoneal flap was noted in 25/36 patients in phase 1, as compared to 5/24 and 5/45 patients in phase 2&3, respectively. When risk-adjusted for peritoneal flap completeness, gradually decreasing skin-to-skin times were observed after sixty-one cases. In terms of off-console times, the mean across three phases was 14 min, with marked improvement after forty-three cases. Conclusions Forty-six cases were needed to achieve steadily decreasing operative times. We can assume that ensuring good-quality repairs, through maintenance of peritoneal flap integrity, was gradually improved after sixty-one cases. Moreover, familiarization with port placements and robotic docking was accomplished after forty-three cases.
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Affiliation(s)
- O Y Kudsi
- Department of Surgery, Good Samaritan Medical Center, Tufts University School of Medicine, One Pearl Street, Brockton, MA, 02301, USA.
| | - F Gokcal
- Department of Surgery, Good Samaritan Medical Center, Tufts University School of Medicine, One Pearl Street, Brockton, MA, 02301, USA
| | - N Bou-Ayash
- Department of Surgery, Good Samaritan Medical Center, Tufts University School of Medicine, One Pearl Street, Brockton, MA, 02301, USA
| | - A S Crawford
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - S K Chung
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - K Chang
- Department of Surgery, Good Samaritan Medical Center, Tufts University School of Medicine, One Pearl Street, Brockton, MA, 02301, USA
| | - D Litwin
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA, USA
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Hwang B, Kim J, Chang K, Ahn Y, Byun S, Kim H, Bu S. Impact of Anemia on Long-Term Clinical Outcome in Patients with Left Ventricular Systolic Dysfunction after Acute Myocardial Infarction. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.901] [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: 10/24/2022] Open
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Wang R, Chang K, Zhou H, Wu J, Cohan G, Jayaraman M, Huang R, Boxerman J, Yang L, Hui F, Woo J, Bai H. Abstract No. 720 Identification of irreversibly damaged brain tissue on computed tomography perfusion using convolutional neural network to assist selection for mechanical thrombectomy in ischemic stroke patients. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.779] [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: 10/25/2022] Open
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Daye D, Tabari A, Kim H, Chang K, Brito Orama S, Bai H, Kalva S, Gee M, Kalpathy-Cramer J, Wehrenberg-Klee E, Uppot R. 3:36 PM Abstract No. 36 Machine learning-based radiomic features on pre-ablation magnetic resonance imaging as predictors of pathologic response in patients with hepatocellular carcinoma listed for hepatic transplant. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.058] [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: 11/28/2022] Open
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Jakubek YA, Chang K, Sivakumar S, Yu Y, Giordano MR, Fowler J, Huff CD, Kadara H, Vilar E, Scheet P. Large-scale analysis of acquired chromosomal alterations in non-tumor samples from patients with cancer. Nat Biotechnol 2020; 38:90-96. [PMID: 31685958 PMCID: PMC8082517 DOI: 10.1038/s41587-019-0297-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 09/25/2019] [Indexed: 01/21/2023]
Abstract
Mosaicism, the presence of subpopulations of cells bearing somatic mutations, is associated with disease and aging and has been detected in diverse tissues, including apparently normal cells adjacent to tumors. To analyze mosaicism on a large scale, we surveyed haplotype-specific somatic copy number alterations (sCNAs) in 1,708 normal-appearing adjacent-to-tumor (NAT) tissue samples from 27 cancer sites and in 7,149 blood samples from The Cancer Genome Atlas. We find substantial variation across tissues in the rate, burden and types of sCNAs, including those spanning entire chromosome arms. We document matching sCNAs in the NAT tissue and the adjacent tumor, suggesting a shared clonal origin, as well as instances in which both NAT tissue and tumor tissue harbor a gain of the same oncogene arising in parallel from distinct parental haplotypes. These results shed light on pan-tissue mutations characteristic of field cancerization, the presence of oncogenic processes adjacent to cancer cells.
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Affiliation(s)
- Y A Jakubek
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - K Chang
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Sivakumar
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Y Yu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M R Giordano
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J Fowler
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - C D Huff
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - H Kadara
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - E Vilar
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - P Scheet
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Fry J, Alarcon R, Baeßler S, Balascuta S, Palos LB, Bailey T, Bass K, Birge N, Blose A, Borissenko D, Bowman J, Broussard L, Bryant A, Byrne J, Calarco J, Caylor J, Chang K, Chupp T, Cianciolo T, Crawford C, Ding X, Doyle M, Fan W, Farrar W, Fomin N, Frlež E, Gericke M, Gervais M, Glück F, Greene G, Grzywacz R, Gudkov V, Hamblen J, Hayes C, Hendrus C, Ito T, Jezghani A, Li H, Makela M, Macsai N, Mammei J, Mammei R, Martinez M, Matthews D, McCrea M, McGaughey P, McLaughlin C, Mueller P, Petten DV, Penttilä S, Perryman D, Picker R, Pierce J, Počanić D, Qian Y, Ramsey J, Randall G, Riley G, Rykaczewski K, Salas-Bacci A, Samiei S, Scott E, Shelton T, Sjue S, Smith A, Smith E, Stevens E, Wexler J, Whitehead R, Wilburn W, Young A, Zeck B. The Nab experiment: A precision measurement of unpolarized neutron beta decay. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921904002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Neutron beta decay is one of the most fundamental processes in nuclear physics and provides sensitive means to uncover the details of the weak interaction. Neutron beta decay can evaluate the ratio of axial-vector to vector coupling constants in the standard model, λ = gA/gV, through multiple decay correlations. The Nab experiment will carry out measurements of the electron-neutrino correlation parameter a with a precision of δa/a = 10−3 and the Fierz interference term b to δb = 3 × 10−3 in unpolarized free neutron beta decay. These results, along with a more precise measurement of the neutron lifetime, aim to deliver an independent determination of the ratio λ with a precision of δλ/λ = 0.03% that will allow an evaluation of Vud and sensitively test CKM unitarity, independent of nuclear models. Nab utilizes a novel, long asymmetric spectrometer that guides the decay electron and proton to two large area silicon detectors in order to precisely determine the electron energy and an estimation of the proton momentum from the proton time of flight. The Nab spectrometer is being commissioned at the Fundamental Neutron Physics Beamline at the Spallation Neutron Source at Oak Ridge National Lab. We present an overview of the Nab experiment and recent updates on the spectrometer, analysis, and systematic effects.
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Chen KH, Tam CWC, Chang K. Early Maladaptive Schemas, Depression Severity, and Risk Factors for Persistent Depressive Disorder: a Cross-sectional Study. East Asian Arch Psychiatry 2019; 29:112-117. [PMID: 31871307 DOI: 10.12809/eaap1821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 06/10/2023]
Abstract
OBJECTIVE To investigate associations of the five early maladaptive schemas (EMS) domains with depression severity by comparing patients with persistent depressive disorder (PDD), patients with major depressive disorder (MDD), and controls with no psychiatric disorders. METHODS Patients with PDD (n = 30), patients with MDD (n = 24), and controls with no psychiatric disorders (n = 30) were recruited. Participants were assessed using the Mini-International Neuropsychiatric Interview 5.0 version (MINI), the Beck Depression Inventory-Second Edition (BDI-II), and the Young Schema Questionnaire-3rd Edition Short Form (YSQ-S3). RESULTS The five EMS domains (YSQ-S3 score) significantly correlated with depression severity (BDI-II score), with correlation coefficients ranging from 0.583 to 0.788. After controlling for age, education, and sex, the two best predictors of depression severity were domains 'over-vigilance and inhibition' and 'disconnection and rejection'. For domains of disconnection and rejection, impaired autonomy and performance, and over-vigilance and inhibition, the total YSQ-S3 score was significantly higher in the PDD group than both the MDD and control groups. For the domain of impaired limits, the total YSQ-S3 score was significantly higher in both the PDD and MDD groups than the control group. CONCLUSION All five EMS domains correlated significantly with depression severity. PDD and MDD differed in psychopathology. The EMS domains of disconnection and rejection, impaired autonomy and performance, and over-vigilance and inhibition may be specific risk factors for PDD.
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Affiliation(s)
- K H Chen
- Department of Clinical Psychology, Ten Chen Hospital (Chungli), Taoyuan City, Taiwan
| | - C W C Tam
- Department of Psychology, Chung Yuan Christian University, Chungli, Taoyuan City, Taiwan
| | - K Chang
- Department of Psychiatry, Taipei Veterans General Hospital, Taoyuan Branch, Taoyuan City, Taiwan
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Tan S, Chang K, Chin S, Kadir SSA, Cheong S, Then K, Ho K, Cheng Z, Then K. Cytopeutics® umbilical cord mesenchymal stromal cells (Cyto-MSC) for patients with grade II–IV acute graft-versus-host disease: a phase I/II clinical study – protocol overview. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Smith MS, Cash B, Konda V, Trindade AJ, Gordon S, DeMeester S, Joshi V, Diehl D, Ganguly E, Mashimo H, Singh S, Jobe B, McKinley M, Wallace M, Komatsu Y, Thakkar S, Schnoll-Sussman F, Sharaiha R, Kahaleh M, Tarnasky P, Wolfsen H, Hawes R, Lipham J, Khara H, Pleskow D, Navaneethan U, Kedia P, Hasan M, Sethi A, Samarasena J, Siddiqui UD, Gress F, Rodriguez R, Lee C, Gonda T, Waxman I, Hyder S, Poneros J, Sharzehi K, Di Palma JA, Sejpal DV, Oh D, Hagen J, Rothstein R, Sawhney M, Berzin T, Malik Z, Chang K. Volumetric laser endomicroscopy and its application to Barrett's esophagus: results from a 1,000 patient registry. Dis Esophagus 2019; 32:5481776. [PMID: 31037293 PMCID: PMC6853704 DOI: 10.1093/dote/doz029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/08/2019] [Indexed: 12/11/2022]
Abstract
Volumetric laser endomicroscopy (VLE) uses optical coherence tomography (OCT) for real-time, microscopic cross-sectional imaging. A US-based multi-center registry was constructed to prospectively collect data on patients undergoing upper endoscopy during which a VLE scan was performed. The objective of this registry was to determine usage patterns of VLE in clinical practice and to estimate quantitative and qualitative performance metrics as they are applied to Barrett's esophagus (BE) management. All procedures utilized the NvisionVLE Imaging System (NinePoint Medical, Bedford, MA) which was used by investigators to identify the tissue types present, along with focal areas of concern. Following the VLE procedure, investigators were asked to answer six key questions regarding how VLE impacted each case. Statistical analyses including neoplasia diagnostic yield improvement using VLE was performed. One thousand patients were enrolled across 18 US trial sites from August 2014 through April 2016. In patients with previously diagnosed or suspected BE (894/1000), investigators used VLE and identified areas of concern not seen on white light endoscopy (WLE) in 59% of the procedures. VLE imaging also guided tissue acquisition and treatment in 71% and 54% of procedures, respectively. VLE as an adjunct modality improved the neoplasia diagnostic yield by 55% beyond the standard of care practice. In patients with no prior history of therapy, and without visual findings from other technologies, VLE-guided tissue acquisition increased neoplasia detection over random biopsies by 700%. Registry investigators reported that VLE improved the BE management process when used as an adjunct tissue acquisition and treatment guidance tool. The ability of VLE to image large segments of the esophagus with microscopic cross-sectional detail may provide additional benefits including higher yield biopsies and more efficient tissue acquisition. Clinicaltrials.gov NCT02215291.
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Affiliation(s)
- M S Smith
- Mount Sinai West & Mount Sinai St. Luke's Hospitals, New York, New York,Address correspondence to: Michael S. Smith, M.D., M.B.A., Chief of Gastroenterology and Hepatology, Mount Sinai West & Mount Sinai St. Luke's Hospitals, Ambulatory Care Center, Floor 13, 440 W. 114th Street, New York, NY 10025, USA.
| | - B Cash
- University of Texas Health Science Center at Houston, Houston, Texas
| | - V Konda
- Baylor University Medical Center, Dallas, Texas
| | - A J Trindade
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York
| | - S Gordon
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | | | - V Joshi
- University Medical Center at LSU, New Orleans, Louisiana
| | - D Diehl
- Geisinger Medical Center, Danville, Pennsylvania
| | - E Ganguly
- University of Vermont Medical Center, Burlington, Vermont
| | - H Mashimo
- VA Boston Health Care System, Boston, Massachusetts
| | - S Singh
- VA Boston Health Care System, Boston, Massachusetts
| | - B Jobe
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | - M McKinley
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York,ProHEALTHcare Associates, Lake Success, New York, New York
| | | | - Y Komatsu
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | - S Thakkar
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | | | - R Sharaiha
- Weill Cornell Medicine, New York, New York
| | - M Kahaleh
- Robert Wood Johnson University Hospital, New Brunswick, New Jersey
| | | | | | - R Hawes
- Florida Hospital, Orlando, Florida
| | - J Lipham
- University of Southern California, Keck School of Medicine, Los Angeles, California
| | - H Khara
- Geisinger Medical Center, Danville, Pennsylvania
| | - D Pleskow
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | - P Kedia
- Methodist Health System, Dallas, Texas
| | - M Hasan
- Florida Hospital, Orlando, Florida
| | - A Sethi
- Columbia University Medical Center, New York, New York
| | | | | | - F Gress
- Columbia University Medical Center, New York, New York
| | - R Rodriguez
- University of South Alabama, Mobile, Alabama
| | - C Lee
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York
| | - T Gonda
- Columbia University Medical Center, New York, New York
| | - I Waxman
- Chicago Medicine, Chicago, Illinois
| | - S Hyder
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - J Poneros
- Columbia University Medical Center, New York, New York
| | - K Sharzehi
- Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - J A Di Palma
- University of Texas Health Science Center at Houston, Houston, Texas
| | - D V Sejpal
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York
| | - D Oh
- University of Southern California, Keck School of Medicine, Los Angeles, California
| | - J Hagen
- University of Southern California, Keck School of Medicine, Los Angeles, California
| | - R Rothstein
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - M Sawhney
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - T Berzin
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Z Malik
- Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - K Chang
- UC Irvine Medical Center, Irvine, California
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Friedstat JS, Stockley O, Chang K, Levin J, Sangji N, Sheridan R, Schulz JT, Kasis L, Ryan CM, Goverman J, Schneider JC. 310 Evaluation of Patient Reported Outcomes Before and After Burn Reconstruction. J Burn Care Res 2019. [DOI: 10.1093/jbcr/irz013.224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- J S Friedstat
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - O Stockley
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - K Chang
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - J Levin
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - N Sangji
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - R Sheridan
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - J T Schulz
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - L Kasis
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - C M Ryan
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - J Goverman
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
| | - J C Schneider
- Massachusetts General Hospital, Boston, MA; Spaulding Rehabilitation Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA; Boston University, Boston, MA; Spaulding Rehabiliation Hospital, Boston, MA
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Chang K, Willis JA, Reumers J, Taggart MW, San Lucas FA, Thirumurthi S, Kanth P, Delker DA, Hagedorn CH, Lynch PM, Ellis LM, Hawk ET, Scheet PA, Kopetz S, Arts J, Guinney J, Dienstmann R, Vilar E. Colorectal premalignancy is associated with consensus molecular subtypes 1 and 2. Ann Oncol 2018; 29:2061-2067. [PMID: 30412224 PMCID: PMC6225810 DOI: 10.1093/annonc/mdy337] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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] [Indexed: 12/29/2022] Open
Abstract
Background Gene expression-based profiling of colorectal cancer (CRC) can be used to identify four molecularly homogeneous consensus molecular subtype (CMS) groups with unique biologic features. However, its applicability to colorectal premalignant lesions remains unknown. Patients and methods We assembled the largest transcriptomic premalignancy dataset by integrating different public and proprietary cohorts of adenomatous and serrated polyps from sporadic (N = 311) and hereditary (N = 78) patient populations and carried out a comprehensive analysis of carcinogenesis pathways using the CMS random forest (RF) classifier. Results Overall, transcriptomic subtyping of sporadic and hereditary polyps revealed CMS2 and CMS1 subgroups as the predominant molecular subtypes in premalignancy. Pathway enrichment analysis showed that adenomatous polyps from sporadic or hereditary cases (including Lynch syndrome) displayed a CMS2-like phenotype with WNT and MYC activation, whereas hyperplastic and serrated polyps with CMS1-like phenotype harbored prominent immune activation. Rare adenomas with CMS4-like phenotype showed significant enrichment for stromal signatures along with transforming growth factor-β activation. There was a strong association of CMS1-like polyps with serrated pathology, right-sided anatomic location and BRAF mutations. Conclusions Based on our observations made in premalignancy, we propose a model of pathway activation associated with CMS classification in colorectal carcinogenesis. Specifically, while adenomatous polyps are largely CMS2, most hyperplastic and serrated polyps are CMS1 and may transition into other CMS groups during evolution into carcinomas. Our findings shed light on the transcriptional landscape of premalignant colonic polyps and may help guide the development of future biomarkers or preventive treatments for CRC.
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Affiliation(s)
- K Chang
- Department of Clinical Cancer Prevention, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA; Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J A Willis
- Hematology and Oncology Fellowship Program, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Reumers
- Janssen Oncology Research & Development, Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium
| | - M W Taggart
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - F A San Lucas
- Department of Epidemiology, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Thirumurthi
- Department of Gastroenterology Hepatology and Nutrition, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA; Clinical Cancer Genetics Program, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - P Kanth
- Division of Gastroenterology, University of Utah Huntsman Cancer Institute, Salt Lake City, USA
| | - D A Delker
- Division of Gastroenterology, University of Utah Huntsman Cancer Institute, Salt Lake City, USA
| | - C H Hagedorn
- Central Arkansas Veterans Healthcare System and University of Arkansas for Medical Sciences, Little Rock, USA
| | - P M Lynch
- Department of Gastroenterology Hepatology and Nutrition, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA; Clinical Cancer Genetics Program, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - L M Ellis
- Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Surgical Oncology, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - E T Hawk
- Department of Clinical Cancer Prevention, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - P A Scheet
- Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Epidemiology, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Kopetz
- Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of GI Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Arts
- Janssen Oncology Research & Development, Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium
| | - J Guinney
- Sage Bionetworks, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - R Dienstmann
- Sage Bionetworks, Fred Hutchinson Cancer Research Center, Seattle, USA; Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.
| | - E Vilar
- Department of Clinical Cancer Prevention, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA; Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA; Clinical Cancer Genetics Program, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of GI Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA.
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Lee K, Hwang B, Chang K. Controlling risk factors at target levels affects coronary ct angiographic findings and cardiovascular events in asymptomatic patients with type 2 diabetes. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kim T, Chang K, Kang K, Kim C, Kim E, Park H, Park E, Kim J, Lee E, Kim I, Seong E. MIR299, 145, and 494 regulate human aortic smooth muscle cell aging via direct targeting of VEZF1. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Brown DJ, Hickey S, Levin J, Chang K, Sheridan R, Ryan C, Friedstat J, Schulz J, Goverman J. 532 The Use of Topical Steroids for the Treatment of Burn-Related Hypertrophic Granulation Tissue and Unstable Scar. J Burn Care Res 2018. [DOI: 10.1093/jbcr/iry006.455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D J Brown
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - S Hickey
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - J Levin
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - K Chang
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - R Sheridan
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - C Ryan
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - J Friedstat
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - J Schulz
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
| | - J Goverman
- Sumner M. Redstone Burn Center - Massachusetts General Hospital, Boston, MA
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Zopes J, Sasaki K, Cujia KS, Boss JM, Chang K, Segawa TF, Itoh KM, Degen CL. High-Resolution Quantum Sensing with Shaped Control Pulses. Phys Rev Lett 2017; 119:260501. [PMID: 29328731 DOI: 10.1103/physrevlett.119.260501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 06/07/2023]
Abstract
We investigate the application of amplitude-shaped control pulses for enhancing the time and frequency resolution of multipulse quantum sensing sequences. Using the electronic spin of a single nitrogen-vacancy center in diamond and up to 10 000 coherent microwave pulses with a cosine square envelope, we demonstrate 0.6-ps timing resolution for the interpulse delay. This represents a refinement by over 3 orders of magnitude compared to the 2-ns hardware sampling. We apply the method for the detection of external ac magnetic fields and nuclear magnetic resonance signals of ^{13}C spins with high spectral resolution. Our method is simple to implement and especially useful for quantum applications that require fast phase gates, many control pulses, and high fidelity.
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Affiliation(s)
- J Zopes
- Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland
| | - K Sasaki
- School of Fundamental Science and Technology, Keio University, Yokohama 223-8522, Japan
| | - K S Cujia
- Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland
| | - J M Boss
- Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland
| | - K Chang
- Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland
| | - T F Segawa
- Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland
| | - K M Itoh
- School of Fundamental Science and Technology, Keio University, Yokohama 223-8522, Japan
| | - C L Degen
- Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland
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Chang K, Lee JT, Vamos E, Palladino R, Soljak M, Majeed A, Millett C. Socio-demographic inequalities in the effectiveness of England’s NHS Health Check. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx187.428] [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: 11/13/2022] Open
Affiliation(s)
- K Chang
- Imperial College London, London, UK
| | - JT Lee
- Imperial College London, London, UK
| | - E Vamos
- Imperial College London, London, UK
| | | | - M Soljak
- Imperial College London, London, UK
| | - A Majeed
- Imperial College London, London, UK
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Chang K, Xia S, Sun YG, Xin JF, Shen WB. [Liposuction combined with lymphatico-venous anastomosis for treatment of secondary lymphedema of the lower limbs: a report of 49 cases]. Zhonghua Wai Ke Za Zhi 2017; 55:274-278. [PMID: 28355765 DOI: 10.3760/cma.j.issn.0529-5815.2017.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinical effects of liposuction combined with lymphatico-venous anastomosis for treatment of secondary lymphedema of the lower limbs. Methods: A retrospective analysis was performed for 49 patients who had undergone liposuction combined with lymphatico-venous anastomosis to treat secondary lymphedema of the lower limbs at Department of Lymph Surgery, Beijing Shijitan Hospital from November 2013 to February 2015.All patients were female aging from 31 to 70 years with median age of (52±10)years.All patients had history of pelvic surgery.There were 32 cases with cervical carcinoma, 11 cases with endometrial cancer, 1 case with ovarian cancer who accepted radical hysterectomy, 2 cases with benign tumor who accepted resection, 2 cases accepted inguinal lymph node dissection, 1 case with rectal cancer accepted radical resection.There were 30 cases with history of radiation therapy and 23 cases with history of erysipelas recurrent((2.1±3.9)/year). The limb swelling degree in preoperative and postoperative patients was explored using one-way analysis of variance with replicate measures and paired sample t-test. Meanwhile the incidence of lymphogenous infection was used as an evaluation of operation efficacy. Results: The mean lower limb circumference difference at 7 days, 6 months and 12 months was (0.17±1.36)cm, (1.25±1.62)cm and(1.58±1.56)cm, respectively, which was significantly decreased compared with preoperative((4.92±2.16)cm) (t=-5.712, -5.777, -5.765; all P<0.01). The mean lower limb volume difference at 7 days, 6 months and 12 months was (522±799)ml, (726±973)ml and (889±895)ml, respectively, which was significantly decreased compared with preoperative((2 729±1 335) ml)(t=-5.905, -6.093, -5.777; all P<0.01). The incidence of erysipelas was 0.0(0.0, 0.0)/6 months within 6 months after operation and 0.0(0.0, 0.0)/6 months within 6-12 months after operation, which was significantly lower than that before operation(0.0(0.0, 2.0)/year). The feeling of tightness and heaviness of the limb was significantly improved compared with preoperative. Conclusion: Liposuction combined with lymphatico-venous anastomosis is an effective method for the treatment of secondary lymphedema of the lower limbs.
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Affiliation(s)
- K Chang
- Department of Lymph Surgery, Beijing Shijitan Hospital, Beijing 100038, China
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