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Peng R, Tong Y, Yang M, Wang J, Yang L, Zhu J, Liu Y, Wang H, Shi Z, Liu Y. Global burden and inequality of maternal and neonatal disorders: based on data from the 2019 Global Burden of Disease study. QJM 2024; 117:24-37. [PMID: 37773990 PMCID: PMC10849872 DOI: 10.1093/qjmed/hcad220] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/04/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Maternal and neonatal disorders account for substantial health loss across the lifespan from early childhood. These problems may be related to health inequality. AIM To provide evidence for improvement in health policies regarding maternal and neonatal disorder inequity. DESIGN This was a population-based cross-sectional study based on 2019 Global Burden of Disease data. METHODS Annual cases and age-standardized rates (ASRs) of incidence, prevalence, death, and disability-adjusted life-years (DALYs) in maternal and neonatal disorders between 1990 and 2019 were collected from the 2019 Global Burden of Disease study. Concentration curves and concentration indices were used to summarize the degree of socioeconomic-related inequality. RESULTS For maternal disorders, the global ASRs of incidence, prevalence, death and DALYs were 2889.4 (95% uncertainty interval (UI), 2562.9-3251.9), 502.9 (95% UI 418.7-598.0), 5.0 (95% UI 4.4-5.8) and 324.9 (95% UI 284.0-369.1) per 100 000 women in 2019, respectively. The ASRs of maternal disorders were all obviously reduced and remained pro-poor from 1990 to 2019. In neonatal disorders, the global ASRs of incidence, prevalence, death and DALYs were 363.3 (95% UI 334.6-396.8), 1239.8 (95% UI 1142.1-1356.7), 29.1 (95% UI 24.8-34.5) and 2828.3 (95% UI 2441.6-3329.6) per 100 000 people in 2019, respectively. The global ASRs of incidence, death and DALYs in neonatal disorders have remained pro-poor. However, the socioeconomic-related fairness in the ASR of neonatal disorder prevalence is being levelled. CONCLUSIONS The global burden of maternal and neonatal disorders has remained high, and socioeconomic-related inequality (pro-poor) tended not to change between 1990 and 2019.
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Affiliation(s)
- R Peng
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - Y Tong
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - M Yang
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - J Wang
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - L Yang
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - J Zhu
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - Yu Liu
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - H Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Sichuan, 610041, China
| | - Z Shi
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
| | - Ya Liu
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, 610081, China
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Deshpande RS, Callejas Pina BE, Peng R, Sousa JA, Wang A, Panaccione R, McKay DM. A4 PREDNISOLONE, A GLUCOCORTICOID WIDELY USED FOR TREATMENT OF IBD, ENHANCES A HUMAN INTERLEUKIN-4-ACTIVATED MACROPHAGE PHENOTYPE. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991387 DOI: 10.1093/jcag/gwac036.004] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background With cellular immunotherapy, the individuals’ medication could ablate (or enhance) any therapeutic benefit of the transferred cells. Murine and human macrophages activated with IL-4 (i.e., M(IL4)) improve wound healing and reduce the severity of disease in murine models of colitis. Advancing the position that autologous M(IL4) could be a novel approach to IBD, a critical question arises: will concurrent medication impact the M(IL4)s anti-colitic effect? To address this, we tested if prednisolone, a synthetic, anti-inflammatory glucocorticoid used to induce remission in IBD flares,impacts human M(IL4) phenotype and function. Purpose To determine if prednisolone suppresses or enhances a human M(IL4) phenotype as defined by canonical marker molecules and wound healing and anti-colitic activities. Method Macrophages were differentiated from the blood monocytes of healthy volunteers using M-CSF (7 days) and treated with GMP-grade IL-4 (10 ng/mL, 48h) ± a 24h treatment with prednisolone (1μg/mL). Subsequently, conditioned medium was collected for TGFb measurement by ELISA and for use in a T84 epithelial cell in vitro wound healing assay. Retrieved M(IL4) and M(IL4,pred.) were characterized by mRNA expression of CD206 (mannose receptor), RAMP1 (CGRP receptor), and CD14 (LPS co-receptor). One million murine bone marrow-derived M(IL4) or M(IL4,pred.) were injected into BALB/c mice 48h prior to intra-rectal DNBS (3mg), and colitis was assessed 72h-post DNBS. Result(s) Human M(IL4)s displayed increased mRNA expression of CD206 and RAMP1, and reduced CD14 compared to M(0), with the CD206 and RAMP1 being further increased by prednisolone treatment. M(IL4,pred.) produced more TGF-β than M(IL4) upon LPS stimulation [363 ± 30 vs. 241 ± 24 pg/ml, n= 4, p<0.05], which would predict an enhanced wound healing capacity. Stimulated M(IL4,pred.) produced more IL-10 than M(IL4). Furthermore, murine M(IL4,pred.) retained an anti-colitic capacity comparable to M(IL4) as determined by disease activity score in the DNBS model. Conclusion(s) Human M(IL4)s subsequently exposed to the potent immunomodulatory glucocorticoid, prednisolone show increased expression of phenotypic markers and increased output of TGFb and IL-10. Crucially M(IL4,pred.) retained an anti-colic effect in the murine DNBS model of colitis. Interpreting these data, we suggest that the anti-colitic effect of M(IL4) immunotherapy would not be adversely offset by the individuals concomitant use of steroids. Our preliminary findings support pursuing M(IL4) transfers as a novel approach to the management of IBD. Please acknowledge all funding agencies by checking the applicable boxes below Other Please indicate your source of funding; Helmsley Charitable Trust Disclosure of Interest None Declared
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Affiliation(s)
- R S Deshpande
- Gastrointestinal Research Group and Inflammation Research Network, Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine
| | - B E Callejas Pina
- Gastrointestinal Research Group and Inflammation Research Network, Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine
| | - R Peng
- Gastrointestinal Research Group and Inflammation Research Network, Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine
| | - J A Sousa
- Gastrointestinal Research Group and Inflammation Research Network, Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine
| | - A Wang
- Gastrointestinal Research Group and Inflammation Research Network, Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine
| | - R Panaccione
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Calgary, Calgary, Canada
| | - D M McKay
- Gastrointestinal Research Group and Inflammation Research Network, Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine
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Yu TL, Xu M, Yang WT, Song YH, Wen CHP, Yao Q, Lou X, Zhang T, Li W, Wei XY, Bao JK, Cao GH, Dudin P, Denlinger JD, Strocov VN, Peng R, Xu HC, Feng DL. Strong band renormalization and emergent ferromagnetism induced by electron-antiferromagnetic-magnon coupling. Nat Commun 2022; 13:6560. [PMID: 36323685 PMCID: PMC9630309 DOI: 10.1038/s41467-022-34254-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/13/2022] [Indexed: 11/15/2022] Open
Abstract
The interactions between electrons and antiferromagnetic magnons (AFMMs) are important for a large class of correlated materials. For example, they are the most plausible pairing glues in high-temperature superconductors, such as cuprates and iron-based superconductors. However, unlike electron-phonon interactions (EPIs), clear-cut observations regarding how electron-AFMM interactions (EAIs) affect the band structure are still lacking. Consequently, critical information on the EAIs, such as its strength and doping dependence, remains elusive. Here we directly observe that EAIs induce a kink structure in the band dispersion of Ba1-xKxMn2As2, and subsequently unveil several key characteristics of EAIs. We found that the coupling constant of EAIs can be as large as 5.4, and it shows strong doping dependence and temperature dependence, all in stark contrast to the behaviors of EPIs. The colossal renormalization of electron bands by EAIs enhances the density of states at Fermi energy, which is likely driving the emergent ferromagnetic state in Ba1-xKxMn2As2 through a Stoner-like mechanism with mixed itinerant-local character. Our results expand the current knowledge of EAIs, which may facilitate the further understanding of many correlated materials where EAIs play a critical role.
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Affiliation(s)
- T. L. Yu
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - M. Xu
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - W. T. Yang
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - Y. H. Song
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - C. H. P. Wen
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - Q. Yao
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - X. Lou
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - T. Zhang
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China ,grid.9227.e0000000119573309Shanghai Research Center for Quantum Sciences, 201315 Shanghai, P. R. China ,grid.509497.6Collaborative Innovation Center of Advanced Microstructures, 210093 Nanjing, China
| | - W. Li
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - X. Y. Wei
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - J. K. Bao
- grid.13402.340000 0004 1759 700XDepartment of Physics, Zhejiang University, 310027 Hangzhou, P. R. China
| | - G. H. Cao
- grid.13402.340000 0004 1759 700XDepartment of Physics, Zhejiang University, 310027 Hangzhou, P. R. China
| | - P. Dudin
- grid.18785.330000 0004 1764 0696Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE UK
| | - J. D. Denlinger
- grid.184769.50000 0001 2231 4551Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720-8229 USA
| | - V. N. Strocov
- grid.5991.40000 0001 1090 7501Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen, PSI Switzerland
| | - R. Peng
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China ,grid.9227.e0000000119573309Shanghai Research Center for Quantum Sciences, 201315 Shanghai, P. R. China
| | - H. C. Xu
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China
| | - D. L. Feng
- grid.8547.e0000 0001 0125 2443Laboratory of Advanced Materials, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200438 Shanghai, P. R. China ,grid.9227.e0000000119573309Shanghai Research Center for Quantum Sciences, 201315 Shanghai, P. R. China ,grid.509497.6Collaborative Innovation Center of Advanced Microstructures, 210093 Nanjing, China ,grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, and Department of Physics, University of Science and Technology of China, 230026 Hefei, P. R. China
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Xiao PL, Cui AY, Hsu CJ, Peng R, Jiang N, Xu XH, Ma YG, Liu D, Lu HD. Global, regional prevalence, and risk factors of osteoporosis according to the World Health Organization diagnostic criteria: a systematic review and meta-analysis. Osteoporos Int 2022; 33:2137-2153. [PMID: 35687123 DOI: 10.1007/s00198-022-06454-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 05/28/2022] [Indexed: 10/18/2022]
Abstract
This systematic review and meta-analysis estimated the global, regional prevalence, and risk factors of osteoporosis. Prevalence varied greatly according to countries (from 4.1% in Netherlands to 52.0% in Turkey) and continents (from 8.0% in Oceania to 26.9% in Africa). Osteoporosis is a common metabolic bone disorder in the elderly, usually resulting in bone pain and an increased risk of fragility fracture, but few summarized studies have guided global strategies for the disease. Therefore, we pooled the epidemiologic data to estimate the global, regional prevalence, and potential risk factors of osteoporosis. We conducted a comprehensive literature search through PubMed, EMBASE, Web of Science, and Scopus, to identify population-based studies that reported the prevalence of osteoporosis based on the World Health Organization (WHO) criteria. Meta-regression and subgroup analyses were used to explore the sources of heterogeneity. The study was registered in the PROSPERO database (CRD42021285555). Of the 57,933 citations evaluated, 108 individual studies containing 343,704 subjects were included. The global prevalence of osteoporosis and osteopenia was 19.7% (95%CI, 18.0%-21.4%) and 40.4% (95%CI, 36.9%-43.8%). Prevalence varied greatly according to countries (from 4.1% in Netherlands to 52.0% in Turkey) and continents (from Oceania 8.0% to 26.9% in Africa). The prevalence was higher in developing countries (22.1%, 95%CI, 20.1%-24.1%) than in developed countries (14.5%, 95%CI, 11.5%-17.7%). Our study indicates a considerable prevalence of osteoporosis among the general population based on WHO criteria, and the prevalence varies substantially between countries and regions. Future studies with robust evidence are required to explore risk factors to provide effective preventive strategies for the disease.
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Affiliation(s)
- P-L Xiao
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - A-Y Cui
- Department of Orthopaedics, Honghui Hospital, Xi'an Jiao Tong University, Xi'an, 710000, China.
| | - C-J Hsu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - R Peng
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - N Jiang
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - X-H Xu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - Y-G Ma
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - D Liu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - H-D Lu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
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Peng R, Li H. [Prevention of adverse prognosis of malignant melanoma from the point of evolution of surgical margin]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:871-877. [PMID: 35785872 DOI: 10.3760/cma.j.cn112150-20211009-00941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Treating malignant melanoma of skin at the early stage depends on wide excision mainly. For the prevention of tumor recurrence, means of acquisition of the safe margin changed from empirical resection to accurate pathological evaluation, and therapeutic target evolved from clearing tumor cells to pursuing the best prognosis. In the future, it would be necessary to combine individualized treatment with evidence-based medicine in the treatment of cutaneous malignant melanoma to prevent adverse outcomes.
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Affiliation(s)
- R Peng
- Department of Dermatology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases, National Medical Products Administration Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing 100034, China
| | - H Li
- Department of Dermatology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases, National Medical Products Administration Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing 100034, China
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Yang Z, Liang S, Zheng B, Chen C, Peng R, Schmid R. P71.03 A New Combination Therapy for FGFR1-Amplified Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.732] [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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Zhao H, Wei X, Huang Y, Yang Y, Fang W, Ma Y, Chen L, Chen D, Wang F, Peng R, Liu Q, Xu R. 1329P A single-arm, open-label, multi-center, phase I study of HA121-28 in patients with advanced solid tumors. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1930] [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: 11/26/2022] Open
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Lou X, Yu TL, Song YH, Wen CHP, Wei WZ, Leithe-Jasper A, Ding ZF, Shu L, Kirchner S, Xu HC, Peng R, Feng DL. Distinct Kondo Screening Behaviors in Heavy Fermion Filled Skutterudites with 4f^{1} and 4f^{2} Configurations. Phys Rev Lett 2021; 126:136402. [PMID: 33861107 DOI: 10.1103/physrevlett.126.136402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
CeOs_{4}Sb_{12} (COS) and PrOs_{4}Sb_{12} (POS) are two representative compounds that provide the ideal vantage point to systematically study the physics of multi-f-electron systems. COS with Ce 4f^{1}, and POS with Pr 4f^{2} configurations show distinct properties of Kondo insulating and heavy fermion superconductivity, respectively. We unveiled the underlying microscopic origin by angle-resolved photoemission spectroscopy studies. Their eV-scale band structure matches well, representing the common characters of conduction electrons in ROs_{4}Sb_{12} systems (R=rare earth). However, f electrons interact differently with conduction electrons in COS and POS. Strong hybridization between conduction electrons and f electrons is observed in COS with band dependent hybridization gaps, and the development of a Kondo insulating state is directly revealed. Although the ground state of POS is a singlet, finite but incoherent hybridization exists, which can be explained by the Kondo scattering with the thermally excited triplet crystalline electric field state. Our results help us to understand the intriguing properties in COS and POS, and provide a clean demonstration of the microscopic differences in heavy fermion systems with 4f^{1} and 4f^{2} configurations.
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Affiliation(s)
- X Lou
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
| | - T L Yu
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
| | - Y H Song
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
| | - C H P Wen
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
| | - W Z Wei
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
| | - A Leithe-Jasper
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straβe 40, 01187 Dresden, Germany
| | - Z F Ding
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
| | - L Shu
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - S Kirchner
- Zhejiang Institute of Modern Physics and Department of Physics, Zhejiang University, Hangzhou 310027, China
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Zhejiang University, Hangzhou 310027, China
| | - H C Xu
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - R Peng
- Laboratory of Advanced Materials, State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200438, China
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - D L Feng
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
- Hefei National Laboratory for Physical Science at Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, and Department of Physics, University of Science and Technology of China, Hefei 230026, China
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Gao M, Cao L, Wang H, Peng R, Xiao X, Wang G, Gao Y, Wang G, Sun C. CORRELATION BETWEEN SUBCLINICAL HYPOTHYROIDISM AND DYSLIPIDEMIA IN WOMEN IN NORTHEAST CHINA. Acta Endocrinol (Buchar) 2021; 17:282-285. [PMID: 34925583 PMCID: PMC8665239 DOI: 10.4183/aeb.2021.282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
CONTEXT It is well known that thyroid hormones are important, being involved in affects the metabolism of carbohydrate, protein, lipids. The relationship between thyroid hormones and lipid metabolism is the focus of recent research. OBJECTIVE To investigate the relationship between subclinical hypothyroidism and lipid metabolism in women. DESIGN We conducted an epidemiological survey of thyroid diseases among women in Northeast China from September 2014 to December 2014. SUBJECTS AND METHODS A total of 1397 women underwent physical examinations and laboratory tests for thyroid function and lipid metabolism. RESULTS We found that the detection rate of subclinical hypothyroidism was 13.03%. Patients with subclinical hypothyroidism showed significantly higher levels of triglyceride (1.69±1.9 vs. 1.45±1.4) and the risk of hyper triglyceridemia in women with thyroid stimulating hormone (TSH) levels ≥10mIU/L was 4.96-fold higher compared with that in the normal population (P<0.01). CONCLUSION Disorders of lipid metabolism in women with subclinical hypothyroidism show a direct correlation with the level of TSH, and the risk of hyper triglyceridemia is significantly increased when the level of TSH ≥10mIU/L.
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Affiliation(s)
- M. Gao
- **Mei Gao, Lingxia Cao and Huan Wang equally contributed to this article
| | - L. Cao
- **Mei Gao, Lingxia Cao and Huan Wang equally contributed to this article
| | - H. Wang
- **Mei Gao, Lingxia Cao and Huan Wang equally contributed to this article
| | | | | | | | | | - G. Wang
- *Correspondence to: Chenglin Sun MD, Jilin University First Hospital- Endocrinology, 71 Xinmin Street of Changchun, Changchun, Jilin, 130000, China, E-mail: . Guixia Wang MD, Jilin University First Hospital- Endocrinology, 71 Xinmin Street of Changchun, Changchun, Jilin, 130000, China, E-mail:
| | - C. Sun
- *Correspondence to: Chenglin Sun MD, Jilin University First Hospital- Endocrinology, 71 Xinmin Street of Changchun, Changchun, Jilin, 130000, China, E-mail: . Guixia Wang MD, Jilin University First Hospital- Endocrinology, 71 Xinmin Street of Changchun, Changchun, Jilin, 130000, China, E-mail:
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Gao Y, Yang H, Deng H, Karatkevich D, Peng R, Schmid R, Marti T. P62.07 Investigation of Metabolic Vulnerabilities Specific to STK11-mutant Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.981] [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: 11/15/2022]
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Peng R, Schmid R. MA06.05 Targeting Anti-Apoptotic Mechanisms in Malignant Pleural Mesothelioma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.176] [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: 11/29/2022]
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Yang Z, Liang S, Peng R, Schmid R. P73.03 A Kinome CRISPR Screen in FGFR-Amplified Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1032] [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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Gu X, Gao Y, Yan Y, Marks M, Zhu L, Lu H, Guan Z, Shi M, Ni L, Peng R, Zhao W, Wu J, Qi T, Lu S, Qian Y, Gong W, Zhou P. The importance of proper and prompt treatment of ocular syphilis: a lesson from permanent vision loss in 52 eyes. J Eur Acad Dermatol Venereol 2020; 34:1569-1578. [PMID: 32163642 PMCID: PMC7496700 DOI: 10.1111/jdv.16347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 02/25/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Ocular involvement can occur at any stage of syphilis. Prompt diagnosis and proper treatment of ocular syphilis are vital to avoid long-term consequences. OBJECTIVES To describe the risk factors for ocular syphilis and clinical features of blindness caused by syphilis. METHODS We report risk factors for ocular syphilis amongst patients seen at the Shanghai Skin Disease Hospital between October 2009 and October 2017. We identify patients with ocular syphilis resulting in blindness and report the clinical characteristics, laboratory findings and treatment outcomes of these patients. RESULTS A total of 8310 new cases of syphilis were seen, of which 213 patients had ocular disease and 50 patients had blindness due to syphilis. Increasing age and higher RPR titres were associated with ocular involvement but there was no association with HIV status. Blindness in syphilis was restricted predominantly to patients with optic nerve involvement and not patients with isolated uveitis. Fifty patients (and a total of 67 eyes) met the WHO definition of blindness prior to treatment for syphilis. At the end of follow-up, vision had improved in 24 of 67 eyes (35.8%) after treatment. Successful treatment of uveitis was associated with the best improvement in visual acuity, whilst patient with underlying optic atrophy prior to treatment had the worst visual outcome. CONCLUSIONS Ocular involvement is an important manifestation of syphilis which may result in blindness. Our data demonstrate outcomes for ocular syphilis are poor if detected late; early recognition and diagnosis is therefore vital to avoid permanent visual loss.
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Affiliation(s)
- X. Gu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Y. Gao
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Y. Yan
- Department of OphthalmologyRenji HospitalSchool of MedicineJiaotong UniversityShanghaiChina
| | - M. Marks
- Department of Clinical ResearchLondon School of Hygiene & Tropical MedicineLondonUK
| | - L. Zhu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - H. Lu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Z. Guan
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - M. Shi
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - L. Ni
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - R. Peng
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - W. Zhao
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - J. Wu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - T. Qi
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - S. Lu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Y. Qian
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - W. Gong
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - P. Zhou
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
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Kuc N, Peng R, Jagust M, Golowa Y, Cynamon J. 3:00 PM Abstract No. 199 Comparing transvenous liver biopsy techniques in congestive liver disease: which is more representative? J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.239] [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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Wattamwar K, Peng R, Coffin B, Golowa Y, Jagust M, Cynamon J. 3:00 PM Abstract No. 317 A novel approach to transjugular intrahepatic portosystemic shunt. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.372] [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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16
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Sun HT, Jiang YL, Ji Z, Guo FX, Peng R, Fan JH, Wang JJ. [3D printing non-coplanar template-assisted 125-iodine seed implantation for thorax movement tumor: individual template design method]. Zhonghua Yi Xue Za Zhi 2020; 99:3699-3702. [PMID: 31874493 DOI: 10.3760/cma.j.issn.0376-2491.2019.47.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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 compare the dosimetric data between preoperative plans and postoperative verification in computed tomography CT-guided and 3D printing template-assisted 125-iodine ((125)I) seed implantation for thorax movement tumor and to explore the feasibility and accuracy of the individualized template design method. Methods: A total of 35 patients, 20 males and 15 females with median age of 62 (17-87) years old, who registered from January 2016 to December 2017 applied with 3D printing guided template assisted radioactive seed implantations in Peking University Third Hospital were included in this study. (125)I seeds with a prescribed dose of 110-180 Gy were impanted. 3D printing templates were designed and produced for 35 cases. The dosimetric parameters: D(90), minimum peripheral dose (mPD), V(100), V(150), V(200), conformal index (CI), external index (EI), and homogeneity index (HI) were compared between pre-and post-plannings. Statistical method was two group of related non-parameters test. Results: The design and production of 35 cases' templates were in place well. Compared with the preoperative planning, the postoperative D(90), V(100), V(150), V(200), mPD, CI, EI and HI differences were 5.57%, 0.34%, 0.33%, -1.20%, 21%, 2.8%, -14.2%, 4.71%, -10.4%. All the included dosimetry parameters changed slightly after surgery compared with before surgery, but the difference was not statistically significant(all P>0.05). Conclusions: The dosimetric parameters of postoperative verification are consistent well with the preoperative planning and have good accuracy, the results could meet the clinical requirements.
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Affiliation(s)
- H T Sun
- Department of Radiation Oncology, Peking University of Third Hospital, Beijing 100191, China
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Liu Z, Peng R, Wang H, Ma L, Wang J. Preliminary Exploration of Tolerability in Preoperative Stereotactic Ablation Radiotherapy Combined with Surgical Treatment for Renal Cell Carcinoma and Inferior Vena Cava Tumor Thrombus. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1955] [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: 11/24/2022]
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Wang S, Wen G, Tang Y, Yang Y, Peng R, Jing H, Wang J, Zhang J, Zhao X, Sun G, Jin J, Liu Y, Song Y, Fang H, Ren H, Tang Y, Qi S, Li N, Chen B, Lu N, Yu Z, Zhang Y, LI Y. Recurrence Score Helps in Selecting T1-2N1 Breast Cancer Patients for Individualized Postmastectomy Radiotherapy – Joint Analysis of 2793 Patients from Two Institutions. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.700] [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: 11/30/2022]
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Peng R, Wang H, Li J, Yang R, Wang J. Dosimetric Comparison of Robotic Radiosurgery and VMAT Delivering Stereotactic Ablative Body Radiation Therapy to Small Renal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1956] [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: 11/30/2022]
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Chen Y, Jiang Y, Ji Z, Peng R, Guo F, LI X, Sun H, Fan J, Li W, Wang J. Efficacy and Safety of CT-Guided 125I Seed Implantation As a Salvage Treatment for Locally Recurrent Head and Neck Soft Tissue Sarcoma after Surgery and External Beam Radiotherapy: A 12-Year Study at a Single Institution. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Qu Y, Pan H, Peng R, Niu J, Li C. Interference illumination of three nonzero-order beams for LCOS-based structured illumination microscopy. J Microsc 2019; 275:97-106. [PMID: 31087655 DOI: 10.1111/jmi.12806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 05/07/2019] [Accepted: 05/12/2019] [Indexed: 11/27/2022]
Abstract
To avoid the need for a mask and polarisation-adjusting devices, and to solve the problem of low fringe contrast caused by the reflected light along with 0th-order diffraction beam, this paper presents an illumination method using three nonzero-order diffraction beams in liquid crystal on silicon (LCOS)-based structured illumination microscopy. Here, a LCOS-based spatial light modulator (SLM) is used to diffract the collimated light and a rotating frosted film is used to reduce the spatial coherence of the laser; then, the fringe is produced by adjusting the SLM angle to allow three nonzero-order diffraction beams to interfere on the sample surface. Interference fringes with high contrast in all directions can be obtained without considering polarisation control and the removal of the 0th-order diffraction beam, which demonstrates that the optical setup is simple and easy to control. We carried out experiments on a photolithographic pattern on a silicon chip, and the resolution after reconstruction is 210 nm, reaching the theoretical resolution at our experiment condition and nearly half of the Rayleigh resolution limit (100× objective, NA = 0.8), which is 406 nm. LAY DESCRIPTION: SIM has been widely applied in imaging of biological sample owing to its advantage of super-resolution. Commonly the structured illumination is produced by interfering two or three diffractive beams and the fringe contrast affects the reconstruction result directly. In this study about liquid-crystal-on-silicon based structured illumination microscopy (LCOS-based SIM), we presents an illumination method using three nonzero-order diffractive beams. Our method can avoid the need for a mask and the polarisation-adjusting devices, because three-beam interference can reduce the influence of polarisation on the fringe contrast. Besides, 0th-order beam is not used, because reflected light still exists even the grey level of the picture-pixels uploaded to spatial light modulator are all 0, which means the 0th-order beam will bring obvious noise. Using our method, interference fringe with high contrast in all directions can be obtained at a relatively high utilisation rate of laser intensity without considering the control of polarisation. Our setup is simple and easy to control, because the adjustment of the deflection angle of the spatial light modulator can realise the removal of the zero diffraction order. We have analysed and discussed the reasons why the interference of three nonzero-order beams can avoid the influence of polarisation and amplitude. The experiments carried out on a photolithographic pattern on silicon chip showed that the resolution after reconstruction is 210 nm, reaching the half of the Rayleigh resolution limit (100× objective, NA=0.8), which is 406 nm.
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Affiliation(s)
- Y Qu
- School of Instrumentation & Opto-Electronic Engineering, Beihang University, Haidian District, Beijing, China
| | - H Pan
- School of Instrumentation & Opto-Electronic Engineering, Beihang University, Haidian District, Beijing, China
| | - R Peng
- School of Instrumentation & Opto-Electronic Engineering, Beihang University, Haidian District, Beijing, China
| | - J Niu
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China
| | - C Li
- School of Instrumentation & Opto-Electronic Engineering, Beihang University, Haidian District, Beijing, China
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Peng R, Qu Y, Hao J, Pan H, Niu J, Jiang J. Multiple parametric nanoscale measurements with high sensitivity based on through-focus scanning optical microscopy. J Microsc 2019; 274:139-149. [PMID: 30993697 DOI: 10.1111/jmi.12792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 11/26/2022]
Abstract
High-throughput through-focus scanning optical microscopy (TSOM) involves defocusing along the optical axis and capturing a series of defocus images and is useful in optical nanoscale measurement. However, TSOM is usually affected by its optical and mechanical noises. In this study, the issue of sensitivity and application in three-dimensional (3D) multiple parameter measurement of TSOM is investigated. First, a TSOM system with objective scanning and its relative simulation algorithm are proposed. Second, based upon the system and algorithm, an experiment on an isolated Au line is performed and the corresponding matching library is established. Comparing the experimental TSOM image and simulated TSOM images of the library, 3D multiple parameter results of the Au line are extracted. Third, the precision of the system is analysed through a fidelity test particular for through-focus images. According to this study, the system is robust to the optical and mechanical noises and hence could be useful in 3D multiple parametric measurement and high-volume nanomanufacturing.
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Affiliation(s)
- R Peng
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China
| | - Y Qu
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China
| | - J Hao
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China
| | - H Pan
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China
| | - J Niu
- Chinese Academy of Sciences, Institute of Microelectronics of CAS, Beijing, China
| | - J Jiang
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China
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Peng R, Krausz S, Jagust M, Golowa Y, Cynamon J. 04:21 PM Abstract No. 82 Wedged hepatic venous pressure as a surrogate for direct portal pressure: how accurate is it? J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.125] [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: 11/30/2022] Open
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Chen HM, Zhou F, Wei W, Peng R, Shi HT, Hou J. [Clinical features and prognosis of 93 elderly patients with multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:744-748. [PMID: 29081189 PMCID: PMC7348367 DOI: 10.3760/cma.j.issn.0253-2727.2017.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical features and prognostic factors of elderly MM patients. Methods: A retrospectively analysis of clinical characteristics in 93 newly diagnosed MM patients with more than 70 years of old between August 2011 and August 2016. Based on age, basic activities of daily living scale, instrumental activities of daily living scale, Charlson comorbidity index at diagnosis, patients were divided into three groups: Fit (score=0, n=15) , Intermediate fitness (score=1, n=31) , Frail (score≥2, n=47) according to a geriatric assessment system proposed by Antonio Palumbo et al. The treatment response rate, progression free survival time (PFS) and overall survival (OS) of the three groups were analyzed. Results: Complete remission was 60.0% in Fit, 22.6% in Intermediate fitness and 12.8% in Frail (Fisher χ(2)=12.398, P=0.002) . The median PFS for the three groups were 31 months, 24 months and 13 months (χ(2)=17.832, P<0.001) . The median OS was not reached for Fit, 58 months for Intermediate fitness and 25 months for Frail (χ(2)=40.678, P<0.001) . In 47 Frail cases, patients who received chemotherapy containing new drugs (proteasome inhibitor or immune-modulator) had a longer PFS (17 months vs 9 months, χ(2)=6.454, P=0.011) and patients who achieved CR had prolonged PFS and OS than non-CR (PFS: 24 months vs 12 months, χ(2)=4.117, P=0.042; OS: 37 months vs 25 months, χ(2)= 6.507, P=0.011) . Conclusion: The health status of the elderly MM patients was associated with better response and longer PFS and OS. Given on those with poor health status, new drugs may have better PFS and prolonged OS.
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Affiliation(s)
| | | | | | | | | | - J Hou
- Department of Hematology, Changzheng Hospital, The Second Military Medical Uuniversity, Shanghai 200003, China
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Peng R, Wang F, Cong XF. [Mechanisms and pathophysiological significance of endothelial injury on superficial erosion of atherosclerotic plaque]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:740-744. [PMID: 30293384 DOI: 10.3760/cma.j.issn.0253-3758.2018.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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26
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Wen CHP, Xu HC, Yao Q, Peng R, Niu XH, Chen QY, Liu ZT, Shen DW, Song Q, Lou X, Fang YF, Liu XS, Song YH, Jiao YJ, Duan TF, Wen HH, Dudin P, Kotliar G, Yin ZP, Feng DL. Unveiling the Superconducting Mechanism of Ba_{0.51}K_{0.49}BiO_{3}. Phys Rev Lett 2018; 121:117002. [PMID: 30265111 DOI: 10.1103/physrevlett.121.117002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/08/2018] [Indexed: 05/12/2023]
Abstract
The mechanism of high superconducting transition temperatures (T_{c}) in bismuthates remains under debate despite more than 30 years of extensive research. Our angle-resolved photoemission spectroscopy studies on Ba_{0.51}K_{0.49}BiO_{3} reveal an unexpectedly 34% larger bandwidth than in conventional density functional theory calculations. This can be reproduced by calculations that fully account for long-range Coulomb interactions-the first direct demonstration of bandwidth expansion due to the Fock exchange term, a long-accepted and yet uncorroborated fundamental effect in many body physics.Furthermore, we observe an isotropic superconducting gap with 2Δ_{0}/k_{B}T_{c}=3.51±0.05, and strong electron-phonon interactions with a coupling constant λ∼1.3±0.2. These findings solve a long-standing mystery-Ba_{0.51}K_{0.49}BiO_{3} is an extraordinary Bardeen-Cooper-Schrieffer superconductor, where long-range Coulomb interactions expand the bandwidth, enhance electron-phonon coupling, and generate the high T_{c}. Such effects will also be critical for finding new superconductors.
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Affiliation(s)
- C H P Wen
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - H C Xu
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Q Yao
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - R Peng
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - X H Niu
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Q Y Chen
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Z T Liu
- CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - D W Shen
- CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - Q Song
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - X Lou
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Y F Fang
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - X S Liu
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Y H Song
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Y J Jiao
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - T F Duan
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - H H Wen
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - P Dudin
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - G Kotliar
- Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Z P Yin
- Department of Physics and Center for Advanced Quantum Studies, Beijing Normal University, Beijing 100875, China
| | - D L Feng
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
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Peng R, Jagust M, Golowa Y, Cynamon J. Abstract No. 623 Technique of maintaining portal venous access and obtaining a more central portal vein puncture when the initial peripheral access may be prone to technical difficulties and potential serious complications. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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28
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Chen QY, Xu DF, Niu XH, Peng R, Xu HC, Wen CHP, Liu X, Shu L, Tan SY, Lai XC, Zhang YJ, Lee H, Strocov VN, Bisti F, Dudin P, Zhu JX, Yuan HQ, Kirchner S, Feng DL. Band Dependent Interlayer f-Electron Hybridization in CeRhIn_{5}. Phys Rev Lett 2018; 120:066403. [PMID: 29481263 DOI: 10.1103/physrevlett.120.066403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 01/02/2018] [Indexed: 06/08/2023]
Abstract
A key issue in heavy fermion research is how subtle changes in the hybridization between the 4f (5f) and conduction electrons can result in fundamentally different ground states. CeRhIn_{5} stands out as a particularly notable example: when replacing Rh with either Co or Ir, antiferromagnetism gives way to superconductivity. In this photoemission study of CeRhIn_{5}, we demonstrate that the use of resonant angle-resolved photoemission spectroscopy with polarized light allows us to extract detailed information on the 4f crystal field states and details on the 4f and conduction electron hybridization, which together determine the ground state. We directly observe weakly dispersive Kondo resonances of f electrons and identify two of the three Ce 4f_{5/2}^{1} crystal-electric-field levels and band-dependent hybridization, which signals that the hybridization occurs primarily between the Ce 4f states in the CeIn_{3} layer and two more three-dimensional bands composed of the Rh 4d and In 5p orbitals in the RhIn_{2} layer. Our results allow us to connect the properties observed at elevated temperatures with the unusual low-temperature properties of this enigmatic heavy fermion compound.
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Affiliation(s)
- Q Y Chen
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - D F Xu
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - X H Niu
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - R Peng
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - H C Xu
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - C H P Wen
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - X Liu
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - L Shu
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - S Y Tan
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - X C Lai
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Y J Zhang
- Center for Correlated Matter, Zhejiang University, Hangzhou 310058, China
- Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - H Lee
- Center for Correlated Matter, Zhejiang University, Hangzhou 310058, China
| | - V N Strocov
- Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - F Bisti
- Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - P Dudin
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - J-X Zhu
- Theoretical Division and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - H Q Yuan
- Center for Correlated Matter, Zhejiang University, Hangzhou 310058, China
- Department of Physics, Zhejiang University, Hangzhou 310027, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - S Kirchner
- Center for Correlated Matter, Zhejiang University, Hangzhou 310058, China
| | - D L Feng
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
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Jiang S, Luo C, Gong J, Peng R, Ma S, Tan S, Ye G, Dong L, Yao D. Aberrant Thalamocortical Connectivity in Juvenile Myoclonic Epilepsy. Int J Neural Syst 2017; 28:1750034. [PMID: 28830309 DOI: 10.1142/s0129065717500344] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The purpose of this study was to investigate the functional connectivity (FC) of thalamic subdivisions in patients with juvenile myoclonic epilepsy (JME). Resting state functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) data were acquired from 22 JME and 25 healthy controls. We first divided the thalamus into eight subdivisions by performing independent component analysis on tracking fibers and clustering thalamus-related FC maps. We then analyzed abnormal FC in each subdivision in JME compared with healthy controls, and we investigated their associations with clinical features. Eight thalamic sub-regions identified in the current study showed unbalanced thalamic FC in JME: decreased FC with the superior frontal gyrus and enhanced FC with the supplementary motor area in the posterior thalamus increased thalamic FC with the salience network (SN) and reduced FC with the default mode network (DMN). Abnormalities in thalamo-prefrontocortical networks might be related to the propagation of generalized spikes with frontocentral predominance in JME, and the network connectivity differences with the SN and DMN might be implicated in emotional and cognitive defects in JME. JME was also associated with enhanced FC among thalamic sub-regions and with the basal ganglia and cerebellum, suggesting the regulatory role of subcortical nuclei and the cerebellum on the thalamo-cortical circuit. Additionally, increased FC with the pallidum was positive related with the duration of disease. The present study provides emerging evidence of FC to understand that specific thalamic subdivisions contribute to the abnormalities of thalamic-cortical networks in JME. Moreover, the posterior thalamus could play a crucial role in generalized epileptic activity in JME.
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Affiliation(s)
- S. Jiang
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - C. Luo
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - J. Gong
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - R. Peng
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - S. Ma
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Neurology Department, Sichuan Provincial People’s Hospital, The affiliated Hospital of University of Electronic Science and Technology of China, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - S. Tan
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Neurology Department, Sichuan Provincial People’s Hospital, The affiliated Hospital of University of Electronic Science and Technology of China, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - G. Ye
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - L. Dong
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - D. Yao
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
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Zhang D, Lin G, Yi L, Hao M, Fan G, Yang X, Peng R, Ding J, Zhang K, Zhang R, Li J. External Quality Assessment for Rubella Virus RNA Detection Using Armored RNA in China. Clin Lab 2017; 63:399-405. [PMID: 28182341 DOI: 10.7754/clin.lab.2016.160635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Although tremendous efforts have been made to reduce rubella incidence, there are still 300 new cases of congenital rubella syndrome daily; thus, rubella infections remain one of the leading causes of preventable congenital birth defects. An effective surveillance system, which could be achieved and maintained by using an external quality assessment program, is critical for prevention and control of this disease. METHODS Armored RNAs, which are noninfectious and RNase-resistant, were used for encapsulation of the E1 gene of rubella virus and for preparation of a 10-specimen panel for external quality assessment. Thirty-two laboratories across mainland China that used nucleic acid tests for rubella virus RNA detection were included in the external quality assessment program organized by the National Center for Clinical Laboratories of China. RESULTS Different kinds of commercial kits were used by the laboratories for nucleic acid extraction and TaqMan real-time reverse-transcription PCR for rubella virus RNA detection; 99.2% sensitivity and 100% specificity were achieved in this external quality assessment program. CONCLUSIONS Most of the participating laboratories obtained accurate results for rubella nucleic acid tests, thereby achieving the quality required for regional rubella and congenital rubella syndrome elimination.
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Wu H, Wang D, Meng Y, Ning H, Liu X, Xie Y, Cui L, Wang S, Xu X, Peng R. Activation of TLR signalling regulates microwave radiation-mediated impairment of spermatogenesis in rat testis. Andrologia 2017; 50. [PMID: 28782295 DOI: 10.1111/and.12828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2017] [Indexed: 02/06/2023] Open
Affiliation(s)
- H. Wu
- Department of Pathology; Navy General Hospital; Beijing China
| | - D. Wang
- Beijing Institute of Radiation Medicine; Beijing China
| | - Y. Meng
- Department of Pathology; Navy General Hospital; Beijing China
| | - H. Ning
- Department of Pathology; Navy General Hospital; Beijing China
| | - X. Liu
- Department of Pathology; Navy General Hospital; Beijing China
| | - Y. Xie
- Beijing Institute of Radiation Medicine; Beijing China
| | - L. Cui
- Beijing Institute of Radiation Medicine; Beijing China
| | - S. Wang
- Beijing Institute of Radiation Medicine; Beijing China
| | - X. Xu
- Beijing Institute of Radiation Medicine; Beijing China
| | - R. Peng
- Beijing Institute of Radiation Medicine; Beijing China
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Affiliation(s)
- R. Peng
- Guangdong University of Finance and Economics, Guangzhou, China,
| | - X. Huang
- Guangdong University of Finance and Economics, Guangzhou, China,
| | - B. Wu
- Guangdong University of Finance and Economics, Guangzhou, China,
- New York University, New York, New York
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Bao X, Hou M, Peng R, Luo F, Wu M. Expression of Dominant Negative K6W-Ubiquitin in the Lens Epithelium via an Adenoviral Vector Delays Posterior Capsule Opacification in a Rabbit Model. Curr Mol Med 2017; 17:160-168. [PMID: 28429670 DOI: 10.2174/1566524017666170331163751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 12/31/1969] [Accepted: 03/25/2017] [Indexed: 11/22/2022]
Abstract
PURPOSE Ubiquitin is involved in cell proliferation and differentiation, and the objective of this study is to investigate the potential of dominant negative Ubiquitin (Ub) with a lysine to tryptophan mutation at the 6 position (K6W) through an adenoviral expression vector in the prevention of posterior capsule opacification (PCO) in a rabbit PCO model. METHODS Recombinant dominant negative K6W-Ub adenovirus (RAd-K6W-Ub) with green fluorescent protein (RAd-K6W-Ub/GFP) and RAd-GFP viruses (control) were generated with QBI-HEK 293A cells. New Zealand rabbits receiving lens phacoemulsification were given an intraoperative anterior chamber injection of the viruses. The images of anterior segment photography taken by a slit lamp biomicroscopy were analyzed by posterior capsule opacification manual software (POCOman) for PCO grading. The intraocular pressure (IOP) was detected with a non-contact tonometer (NCT). The expression of α-smooth muscle actin (α-SMA) was assessed by Western blotting. Cell migration ability in cultured rabbit's lens epithelial cells (LECs) was evaluated by scratch healing assay. RESULTS The expression of GFP and Ub in the lens epithelium was markedly upregulated after 48 hours vector injection. Eyes injected with RAd-K6W-Ub showed a significantly lower PCO degree compared with controls. Meanwhile, higher IOP and corneal edema was observed in groups with a higher RAd-K6W-Ub virus dosage. The expression of α-SMA was down-regulated in the RAd-K6W-Ub eyes as compared to controls at the 15th day after injection. Cell migration was inhibited by RAd-K6W-Ub infection. CONCLUSIONS RAd-K6W-Ub at an appropriate dosage could inhibit the proliferation of LECs and the formation of PCO in rabbit models. However, a higher dosage of Rad- K6W-Ub viral vector caused toxic effects to the surrounding tissues, such as corneal edema and high IOP.
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Affiliation(s)
- X Bao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060. China
| | - M Hou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060. China
| | - R Peng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060. China
| | - F Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060. China
| | - M Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou 510060. China
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Abstract
A novel graphene oxide cotton fibre (GOF) was used to adsorb flavonoids from crude ethanol extracts derived from apple peels. Ultra-high pressure liquid chromatography-mass spectrometry was used to analyse polyphenol content, and the resulting data demonstrated that GOF-based flash chromatography can be used to efficiently separate polyphenols from sugars and can facilitate the removal of 95% of the sugar content. Flavonoids can be easily separated from phenolic acids. Chalcones and flavonols were eluted with 100% methanol and subsequently flavan-3-ols can be eluted with 0.04 M sodium hydroxide. The novel GOF has the potential to be used in the isolation of flavonoids.
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Affiliation(s)
- Z Xu
- a Department of Chemistry , School of Science, Xihua University , Chengdu , P.R. China.,d Faculty of Agriculture, Department of Plant, Food, and Environmental Sciences , Dalhousie University , Truro , NS , Canada
| | - R Peng
- b Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing , P.R. China.,c Department of Chemical Engineering , McMaster University , Hamilton , ON , Canada
| | - X Chen
- b Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing , P.R. China
| | - R Ghosh
- c Department of Chemical Engineering , McMaster University , Hamilton , ON , Canada
| | - H P V Rupasinghe
- d Faculty of Agriculture, Department of Plant, Food, and Environmental Sciences , Dalhousie University , Truro , NS , Canada
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Ji Z, Jiang YL, Guo FX, Peng R, Sun HT, Fan JH, Wang JJ. [Dosimetry verification of radioactive seed implantation with 3D printing template and CT guidance for paravertebral/retroperitoneal malignant tumor]. Zhonghua Yi Xue Za Zhi 2017; 97:996-1000. [PMID: 28395417 DOI: 10.3760/cma.j.issn.0376-2491.2017.13.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To compare the dose distributions of postoperative plans with preoperative plans for seeds implantations of paravertebral/retroperitoneal tumors assisted by 3D printing guide template and CT guidance, explore the effects of the technology for seeds implantations in dosimetry level and provide data support for the optimization and standardization in seeds implantation. Methods: Between December 2015 and July 2016, a total of 10 patients with paravertebral/retroperitoneal tumors (12 lesions) received 3D printing template assist radioactive seeds implantations in department of radiation oncology of Peking University Third Hospital, and included in the study. The diseases included cervical cancer, kidney cancer, abdominal stromal tumor, leiomyosarcoma of kidney, esophageal cancer and carcinoma of ureter. The prescribed doses was 110-150 Gy. All patients received preoperative planning design, individual template design and production, and the dose distribution of postoperative plan was compared with preoperative plan. Dose parameters including D(90), MPD, V(100), V(150,)conformal index(CI), EI of target volume and D(2cc) of organs at risk (spinal cord, aorta, kidney). Statistical software was SPSS 19.0 and statistical method was non-parameters Wilcoxon symbols test. Results: A total of 10 3D printing templates were designed and produced which were including 12 treatment areas.The mean D(90) of postoperative target area (GTV) was 131.1 (97.8-167.4 Gy) Gy. The actual seeds number of post operation increased by 3 to 12 in 5 cases (42.0%). The needle was well distributed. For postoperative plans, the mean D(90,)MPD, V(100,)V(150) was 131.1 Gy, 69.3 Gy, 90.2% and 65.2%, respectively, and which was 140.2 Gy, 65.6 Gy, 91.7% and 26.8%, respectively, in preoperative plans. This meant that the actual dose of target volume was slightly lower than preplanned dose, and the high dose area of target volume was larger than preplanned range, but there was no statistical difference in P value between the two groups except V(150)(P=0.004). The actual dose conformity of target volume was worse than preplanned (CI was 0.58 and 0.62, respectively) and the difference was statistically significant(P=0.019). The actual dose of external target volume was higher than preplanned (EI was 55% and 45.9%, respectively) and the difference had no significance. For organs at risk, the actual mean D(2cc) of spinal cord, aorta and kidney was 24.7, 54.4 and 29.7 Gy, respectively, which was higher than preplanned(20.6, 51.6 and 28.6 Gy, respectively), and there was no significant difference in two groups. Conclusions: Most parameters of postoperative validations for 3D printing template assisted seeds implantation in paravertebral/retroperitoneal are closed to the expectations of preoperative plans which means the improvement of accuracy in treatment.
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Affiliation(s)
- Z Ji
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191, China
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Marti T, Tièche C, Peng R, Hall S, Froment L, Dorn P, Berezowska S, Schmid R. Characterizing the DNA damage response in putative stem cells of resected normal lung and matched NSCLC patient samples. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx090.013] [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: 11/14/2022] Open
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Zhang N, Yang Y, Lu H, Xiang Y, Huang X, Hu R, Chen Z, Yuan W, Peng R, Peng J, Ai H, Liu K. Spodoptera litura autophagy-related protein 1 interacts with autophagy-related protein 5 and enhances its degradation. Insect Mol Biol 2017; 26:190-203. [PMID: 27902874 DOI: 10.1111/imb.12284] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
It is known that the autophagy-related protein 1 (ATG1) plays critical roles in the regulation of autophagy in mammals and yeast, whereas the function of ATG1 in lepidopteran insects is not well elucidated. Here Spodoptera litura ATG1 (SlATG1) and its interactions with other ATG proteins were characterized. Alternative splicing of SlAtg1 produced at least four transcript variants. Over-expression and RNA interference knockdown of SlAtg1 demonstrated that SlATG1 enhanced autophagy. SlATG1A-Green fluorescent protein (GFP) tagged localized in the cytoplasm and formed some punctuate dots, which were colocalized with red fluorescent protein mCherry tagged Spodoptera exigua ATG5 (SeATG5). SlATG1A-GFP over-expression reduced the nuclear abundance of mCherry-SeATG5 but increased its cytoplasmic abundance. Pull-down, co-immunoprecipitation and bimolecular fluorescence complementation assays showed that SlATG1A bound to SeATG5 through the N-terminus of SlATG1A. The over-expression of FLAG epitope tagged SlATG1A significantly increased the accumulation of the cleaved GFP from GFP-SeATG5, suggesting the enhanced degradation of GFP-SeATG5. In addition, we confirmed that the interactions of SlATG1 with other autophagy-related proteins were conserved. These results provide the first evidence that ATG1 interacts with ATG5 and enhances its degradation in lepidopteran insect cells, which may have important physiological functions.
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Affiliation(s)
- N Zhang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Y Yang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - H Lu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Y Xiang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - X Huang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - R Hu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Z Chen
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - W Yuan
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - R Peng
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - J Peng
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - H Ai
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - K Liu
- School of Life Sciences, Central China Normal University, Wuhan, China
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Wang S, Peng R, Jin J, Wang W, Song Y, Liu Y, Liu X, Yu Z, Fang H, Ren H, Li Y. Abstract P1-10-10: Risk factors of locoregional recurrence, locoregional failure pattern and role of postmastectomy radiotherapy for T1-2 breast cancers with 1-3 positive axillary lymph nodes. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-10-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was not presented at the symposium.
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Affiliation(s)
- S Wang
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - R Peng
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - J Jin
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - W Wang
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - Y Song
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - Y Liu
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - X Liu
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - Z Yu
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - H Fang
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - H Ren
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
| | - Y Li
- Cancer Hospital, Peking Union College and Chinese Academy of Medical Sciences, National Cancer Institute, Beijing, China
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Wang Q, Yang H, Liu X, Dai L, Ma T, Qi J, Wong G, Peng R, Liu S, Li J, Li S, Song J, Liu J, He J, Yuan H, Xiong Y, Liao Y, Li J, Yang J, Tong Z, Griffin BD, Bi Y, Liang M, Xu X, Qin C, Cheng G, Zhang X, Wang P, Qiu X, Kobinger G, Shi Y, Yan J, Gao GF. Molecular determinants of human neutralizing antibodies isolated from a patient infected with Zika virus. Sci Transl Med 2016; 8:369ra179. [DOI: 10.1126/scitranslmed.aai8336] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 08/26/2016] [Accepted: 10/28/2016] [Indexed: 01/10/2023]
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Zhang JH, Peng R, Du Y, Mou Y, Li NN, Cheng L. [Reliability and validity of Parkinson's disease sleep scale-Chinese version in the south west of China]. Zhonghua Yi Xue Za Zhi 2016; 96:3294-3299. [PMID: 27852373 DOI: 10.3760/cma.j.issn.0376-2491.2016.41.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the reliability and validity of Parkinson's disease sleep scale-Chinese version (CPDSS) through a study of a large PD population in southwest China, and to explore the prevalence and characteristics of sleep disorders in Parkinson's disease (PD) patients from southwest China. Methods: A total of 544 PD patients and 220 control subjects were enrolled in our study. Demographic data, CPDSS, ESS, PDQ39, HAMD and H-Y stage were assessed in all subjects. Statistical description, Cronbach's alpha coefficient, intra-class correlation coefficient (ICC), Spearman rank correlation coefficient and Mann-Whitney U test were used for statistical analyses. Result: The Cronbach's alpha coefficient for CPDSS was 0.79, ICC of the total scale was 0.94 and ICC of each item ranged from 0.73 to 0.97. The factor analysis yielded a five-factor solution, which explained 63.4% of the total variance. Total and each item scores of CPDSS in PD patients were lower than those in healthy controls. 69.3% of PD patients had sleep disorder, while prevalence in the control group was only 29.6%. Negative correlation was found between CPDSS and ESS. Daytime sleepiness was the most common factor (35.9%) leading to sleep disorders. The sleep disorders of PD patients in Southwest China were significantly related with the course of disease, the severity of disease, the quality of life, depression, cognitive level and motor symptoms. Conclusion: CPDSS has good feasibility, reliability and validity in PD population from southwest China. CPDSS is considered as an effective tool for the assessment of sleep disorder in PD patients.
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Affiliation(s)
- J H Zhang
- Department of Neurology, West China Health Hospital of Sichuan University, Chengdu 610064, China
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Peng R, Sonner Z, Hauke A, Wilder E, Kasting J, Gaillard T, Swaille D, Sherman F, Mao X, Hagen J, Murdock R, Heikenfeld J. A new oil/membrane approach for integrated sweat sampling and sensing: sample volumes reduced from μL's to nL's and reduction of analyte contamination from skin. Lab Chip 2016; 16:4415-4423. [PMID: 27752680 DOI: 10.1039/c6lc01013j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Wearable sweat biosensensing technology has dominantly relied on techniques which place planar-sensors or fluid-capture materials directly onto the skin surface. This 'on-skin' approach can result in sample volumes in the μL regime, due to the roughness of skin and/or due to the presence of hair. Not only does this increase the required sampling time to 10's of minutes or more, but it also increases the time that sweat spends on skin and therefore increases the amount of analyte contamination coming from the skin surface. Reported here is a first demonstration of a new paradigm in sweat sampling and sensing, where sample volumes are reduced from the μL's to nL's regime, and where analyte contamination from skin is reduced or even eliminated. A micro-porous membrane is constructed such that it is porous to sweat only. To complete a working device, first placed onto skin is a cosmetic-grade oil, secondly this membrane, and thirdly the sensors. As a result, spreading of sweat is isolated to only regions above the sweat glands before it reaches the sensors. Best case sampling intervals are on the order of several minutes, and the majority of hydrophilic (low oil solubility) contaminants from the skin surface are blocked. In vitro validation of this new approach is performed with an improved artificial skin including human hair. In vivo tests show strikingly consistent results, and reveal that the oil/membrane is robust enough to even allow horizontal sliding of a sensor.
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Affiliation(s)
- R Peng
- School of Optical-Elect. and Comp. Engin., Univ. of Shanghai for Sci. and Tech, PR China and Novel Devices Lab, Dept. of Electrical Engin. and Computing Sys., Univ. Cincinnati., USA. www.noveldevicelab.com
| | - Z Sonner
- Novel Devices Lab, Dept. of Electrical Engin. and Computing Sys., Univ. Cincinnati., USA. www.noveldevicelab.com
| | - A Hauke
- Novel Devices Lab, Dept. of Electrical Engin. and Computing Sys., Univ. Cincinnati., USA. www.noveldevicelab.com
| | - E Wilder
- Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - J Kasting
- Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - T Gaillard
- College of Nursing, University of Cincinnati, Cincinnati, OH 45267, USA
| | - D Swaille
- P&G Corp. Technical and Research Centers, Cincinnati, OH, USA
| | - F Sherman
- P&G Corp. Technical and Research Centers, Cincinnati, OH, USA
| | - X Mao
- P&G Corp. Technical and Research Centers, Cincinnati, OH, USA
| | - J Hagen
- Air Force Research Laboratory, 711th Human Performance Wing, Wright Patterson AFB, OH 45433, USA
| | - R Murdock
- Air Force Research Laboratory, 711th Human Performance Wing, Wright Patterson AFB, OH 45433, USA
| | - J Heikenfeld
- Novel Devices Lab, Dept. of Electrical Engin. and Computing Sys., Univ. Cincinnati., USA. www.noveldevicelab.com
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Xu HC, Niu XH, Xu DF, Jiang J, Yao Q, Chen QY, Song Q, Abdel-Hafiez M, Chareev DA, Vasiliev AN, Wang QS, Wo HL, Zhao J, Peng R, Feng DL. Highly Anisotropic and Twofold Symmetric Superconducting Gap in Nematically Ordered FeSe_{0.93}S_{0.07}. Phys Rev Lett 2016; 117:157003. [PMID: 27768370 DOI: 10.1103/physrevlett.117.157003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Indexed: 06/06/2023]
Abstract
FeSe exhibits a novel ground state in which superconductivity coexists with a nematic order in the absence of any long-range magnetic order. Here, we report on an angle-resolved photoemission study on the superconducting gap structure in the nematic state of FeSe_{0.93}S_{0.07}, without the complications caused by Fermi surface reconstruction induced by magnetic order. We find that the superconducting gap shows a pronounced twofold anisotropy around the elliptical hole pocket near Z (0, 0, π), with gap minima at the end points of its major axis, while no detectable gap is observed around Γ (0, 0, 0) and the zone corner (π, π, k_{z}). The large anisotropy and nodal gap distribution demonstrate the substantial effects of the nematicity on the superconductivity and thus put strong constraints on current theories.
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Affiliation(s)
- H C Xu
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - X H Niu
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - D F Xu
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - J Jiang
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - Q Yao
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - Q Y Chen
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - Q Song
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - M Abdel-Hafiez
- Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China
- Faculty of science, Physics Department, Fayoum University, 63514 Fayoum, Egypt
| | - D A Chareev
- Institute of Experimental Mineralogy, Russian Academy of Sciences, 142432 Chernogolovka, Moscow District, Russia
- Institute of Physics and Technology, Ural Federal University, 620002 Ekaterinburg, Russia
| | - A N Vasiliev
- Institute of Physics and Technology, Ural Federal University, 620002 Ekaterinburg, Russia
- Low Temperature Physics and Superconductivity Department, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Q S Wang
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - H L Wo
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - J Zhao
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - R Peng
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - D L Feng
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
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Peng R, Wang S, Song Y, Jin J, Liu Y, Liu X, Yu Z, Li Y. The Locoregional Recurrence Risk and Failure Pattern for Breast Cancer Patients With 1 to 3 Positive Nodes and Treated With Mastectomy and Contemporary Systemic Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.732] [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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Xie H, Xie Y, Peng R, Li L, Zhu Y, Guo J. Harlequin ichthyosis: a novel compound mutation of ABCA12 with prenatal diagnosis. Clin Exp Dermatol 2016; 41:636-9. [PMID: 27381714 DOI: 10.1111/ced.12861] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 11/26/2022]
Abstract
Harlequin ichthyosis (HI) is the most severe form of recessive congenital ichthyosis, and is frequently lethal. We describe a family with prenatal diagnosis of HI in two siblings. We applied genomic capture and massively parallel sequencing to detect all mutations in 20 genes, including ABCA12, with inherited mutations that predispose to congenital ichthyosis. Sequence analysis of the ABCA12 gene identified two mutations, c.5232 G>A (p.Trp1744*) in exon 34 and c.6443 C>A (p.Pro2148Gln) in exon 44, each in a heterozygous state. Sanger sequencing confirmed that each parent was a heterozygous carrier for one of the variants. The spectrum of mutations identified in this study and previous studies reveals a novel compound mutation of ABCA12.
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Affiliation(s)
- H Xie
- Department of Ultrasonic Medicine, Fetal Medical Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Y Xie
- Department of Prenatal Diagnosis, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - R Peng
- Department of Ultrasonic Medicine, Fetal Medical Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - L Li
- Department of Ultrasonic Medicine, Fetal Medical Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Y Zhu
- Department of Ultrasonic Medicine, Fetal Medical Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - J Guo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
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Peng R, Zhang Y, Zhao GX, Li J, Shen XZ, Wang JY, Sun JY. Differential regulation of the expression of aquaporins 3 and 9 by Auphen and dbcAMP in the SMMC-7721 hepatocellular carcinoma cell line. Biotech Histochem 2016; 91:333-41. [PMID: 27058469 DOI: 10.3109/10520295.2016.1168525] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aquaglycero-aquaporins (agAQPs) are the structural foundation of rapid water transport and they appear to participate in cancer proliferation and malignancy. AQP3 expression is increased and AQP9 expression is decreased in hepatocellular carcinoma (HCC) compared to normal liver, which suggests their possible use as targets for cancer treatment. AQP-based modifiers, such as Auphen and dibutyryladenosine 3', 5'-cyclic monophosphate (dbcAMP), might be used to treat several diseases and as chemical tools for assessing the functions of AQPs in biological systems. We investigated the effects of both Auphen on AQP3 and dbcAMP on AQP9 in SMMC-7721 cells. We used western blotting, real-time quantitative polymerase chain reaction (qPCR) and immunohistochemistry to evaluate changes in AQP3 and AQP9 expression in SMMC-7721 cells after culturing with Auphen and dbcAMP, respectively. We also determined the proliferation of SMMC-7721 cells. We found that compared to HL-7702 (L02) liver cells, Auphen increased AQP3 expression in tumor cells, whereas dbcAMP decreased expression of AQP9 in these cells. Also, high concentrations of Auphen and dbcAMP inhibited proliferation of SMMC-7721 cells in vitro. Auphen and dbcAMP may inhibit HCC development and could be considered targets for HCC diagnosis and therapy.
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Affiliation(s)
- R Peng
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - Y Zhang
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - G X Zhao
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Li
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - X Z Shen
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Y Wang
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Y Sun
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
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Zhao GX, Dong PP, Peng R, Li J, Zhang DY, Wang JY, Shen XZ, Dong L, Sun JY. Expression, localization and possible functions of aquaporins 3 and 8 in rat digestive system. Biotech Histochem 2016; 91:269-76. [DOI: 10.3109/10520295.2016.1144079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhang WH, Liu X, Wen CHP, Peng R, Tan SY, Xie BP, Zhang T, Feng DL. Effects of Surface Electron Doping and Substrate on the Superconductivity of Epitaxial FeSe Films. Nano Lett 2016; 16:1969-1973. [PMID: 26859620 DOI: 10.1021/acs.nanolett.5b05243] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Superconductivity in FeSe is greatly enhanced in films grown on SrTiO3 substrates, although the mechanism behind remains unclear. Recently, surface potassium (K) doping has also proven able to enhance the superconductivity of FeSe. Here, by using scanning tunneling microscopy, we compare the K doping dependence of the superconductivity in FeSe films grown on two substrates: SrTiO3 (001) and graphitized SiC (0001). For thick films (20 unit cells (UC)), the optimized superconducting (SC) gaps are of similar size (∼9 meV) regardless of the substrate. However, when the thickness is reduced to a few UC, the optimized SC gap is increased up to ∼15 meV for films on SrTiO3, whereas it remains unchanged for films on SiC. This clearly indicates that the FeSe/SrTiO3 interface can further enhance the superconductivity, beyond merely doping electrons. Intriguingly, we found that this interface enhancement decays exponentially as the thickness increases, with a decay length of 2.4 UC, which is much shorter than the length scale for relaxation of the lattice strain, pointing to interfacial electron-phonon coupling as the likely origin.
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Affiliation(s)
- W H Zhang
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
| | - X Liu
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
| | - C H P Wen
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
| | - R Peng
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
| | - S Y Tan
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
| | - B P Xie
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
- Collaborative Innovation Center of Advanced Microstructures, Fudan University , Shanghai 200433, China
| | - T Zhang
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
- Collaborative Innovation Center of Advanced Microstructures, Fudan University , Shanghai 200433, China
| | - D L Feng
- State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University , Shanghai 200433, China
- Collaborative Innovation Center of Advanced Microstructures, Fudan University , Shanghai 200433, China
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Wen CHP, Xu HC, Chen C, Huang ZC, Lou X, Pu YJ, Song Q, Xie BP, Abdel-Hafiez M, Chareev DA, Vasiliev AN, Peng R, Feng DL. Anomalous correlation effects and unique phase diagram of electron-doped FeSe revealed by photoemission spectroscopy. Nat Commun 2016; 7:10840. [PMID: 26952215 PMCID: PMC4786746 DOI: 10.1038/ncomms10840] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 01/26/2016] [Indexed: 12/03/2022] Open
Abstract
FeSe layer-based superconductors exhibit exotic and distinctive properties. The undoped FeSe shows nematicity and superconductivity, while the heavily electron-doped KxFe2−ySe2 and single-layer FeSe/SrTiO3 possess high superconducting transition temperatures that pose theoretical challenges. However, a comprehensive study on the doping dependence of an FeSe layer-based superconductor is still lacking due to the lack of a clean means of doping control. Through angle-resolved photoemission spectroscopy studies on K-dosed thick FeSe films and FeSe0.93S0.07 bulk crystals, here we reveal the internal connections between these two types of FeSe-based superconductors, and obtain superconductivity below ∼46 K in an FeSe layer under electron doping without interfacial effects. Moreover, we discover an exotic phase diagram of FeSe with electron doping, including a nematic phase, a superconducting dome, a correlation-driven insulating phase and a metallic phase. Such an anomalous phase diagram unveils the remarkable complexity, and highlights the importance of correlations in FeSe layer-based superconductors. Electron doping is a powerful way to induce quantum phase transitions in materials and explore exotic states of matter. Here, Wen et al. present carefully-controlled potassium dosing in FeSe films and FeSe0.93S0.07 bulk, which enhances superconductivity and induces other anomalous phases, revealing a complex phase diagram.
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Affiliation(s)
- C H P Wen
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - H C Xu
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - C Chen
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - Z C Huang
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - X Lou
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - Y J Pu
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - Q Song
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - B P Xie
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - Mahmoud Abdel-Hafiez
- Institute of Physics, Goethe University Frankfurt, 60438 Frankfurt, Germany.,Center for High Pressure Science and Technology Advanced Research, 1690 Cailun Road, Shanghai 201203, China
| | - D A Chareev
- Institute of Experimental Mineralogy, Russian Academy of Sciences, Chernogolovka, 119991 Moscow , Russia
| | - A N Vasiliev
- Low Temperature Physics and Superconductivity Department, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - R Peng
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
| | - D L Feng
- State Key Laboratory of Surface Physics, Department of Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
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Wang S, Zheng Q, Nie M, Xu F, Xia W, Yuan Z, Peng R, An X, Qin T, Qin G. Abstract P3-07-21: Non-alcoholic fatty liver disease induced by selective estrogen receptor modulators is a protective factor for breast cancer survival. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-07-21] [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: 11/16/2022]
Abstract
Abstract
Purpose: Non-alcoholic fatty liver disease (NAFLD) induced by selective estrogen receptor modulators (SERMs) treatment may be related to treatment efficacy for the antagonism of circulating estrogens. We conducted a retrospective study to investigate the relationship between survival outcomes and NAFLD in breast cancer patients treated with tamoxifen or toremifene.
Patients and methods: 785 eligible patients received tamoxifen or toremifene in Sun Yat-sen university cancer center from January 2005 to December 2009 were included in our study. All patients have at less one abdominal ultrasonography measurement at baseline and every year's follow-up. Patients who diagnosed NAFLD by ultrasonography during three-year's follow-up were classified into NAFLD cohort, others were classified into no-NAFLD cohort. Univariate and multivariate Cox regression was utilized to analyse the relationship between NAFLD and disease-free survival (DFS) and overall survival (OS).
Results:158 patients had reported NAFLD in the first 3 years' follow-up. Patients who developed NAFLD had better DFS and OS than those not developing NAFLD. The 5-years DFS was 91.56% and 85.01% at NAFLD and no-NAFLD cohort (univariate hazard ratio [HR]: 0.59 [95%CI 0.37-0.96], P=0.034), respectively. The 5-years OS was 96.64% and 93.31% at NAFLD and no-NAFLD cohort (univariate HR: 0.39 [95%CI 0.16-0.99], P=0.047), respectively. Multivariate analysis revealed that NAFLD is an independent prognostic factor on DFS in breast cancer patients with SERMs treated. Women treated with SERMs experienced NAFLD in the first three-year's follow-up had a reduced risk of DFS of 42% (multivariate HR: 0.58; [95%CI 0.36-0.95], P=0.032) compared with patients without NAFLD.
Conclusion: NAFLD induced by SERMs seems to be associated with better survival outcomes and may therefore be helpful in predicting treatment responses in breast cancer patients treated with SERMs.
Citation Format: Wang S, Zheng Q, Nie M, Xu F, Xia W, Yuan Z, Peng R, An X, Qin T, Qin G. Non-alcoholic fatty liver disease induced by selective estrogen receptor modulators is a protective factor for breast cancer survival. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-07-21.
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Affiliation(s)
- S Wang
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Q Zheng
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - M Nie
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - F Xu
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - W Xia
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Z Yuan
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - R Peng
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - X An
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - T Qin
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - G Qin
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
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Hardin J, Hoerl R, Horton NJ, Nolan D, Baumer B, Hall-Holt O, Murrell P, Peng R, Roback P, Temple Lang D, Ward MD. Data Science in Statistics Curricula: Preparing Students to “Think with Data”. AM STAT 2015. [DOI: 10.1080/00031305.2015.1077729] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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