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Zhao H, Liu LL, Sun J, Jin L, Xie HB, Li JB, Xu H, Wu DD, Zhuang XL, Peng MS, Guo YJ, Qian WZ, Otecko NO, Sun WJ, Qu LH, He J, Chen ZL, Liu R, Chen CS, Zhang YP. A human-specific insertion promotes cell proliferation and migration by enhancing TBC1D8B expression. Sci China Life Sci 2024; 67:765-777. [PMID: 38110796 DOI: 10.1007/s11427-023-2442-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/28/2023] [Indexed: 12/20/2023]
Abstract
Human-specific insertions play important roles in human phenotypes and diseases. Here we reported a 446-bp insertion (Insert-446) in intron 11 of the TBC1D8B gene, located on chromosome X, and traced its origin to a portion of intron 6 of the EBF1 gene on chromosome 5. Interestingly, Insert-446 was present in the human Neanderthal and Denisovans genomes, and was fixed in humans after human-chimpanzee divergence. We have demonstrated that Insert-446 acts as an enhancer through binding transcript factors that promotes a higher expression of human TBC1D8B gene as compared with orthologs in macaques. In addition, over-expression TBC1D8B promoted cell proliferation and migration through "a dual finger" catalytic mechanism (Arg538 and Gln573) in the TBC domain in vitro and knockdown of TBC1D8B attenuated tumorigenesis in vivo. Knockout of Insert-446 prevented cell proliferation and migration in cancer and normal cells. Our results reveal that the human-specific Insert-446 promotes cell proliferation and migration by upregulating the expression of TBC1D8B gene. These findings provide a significant insight into the effects of human-specific insertions on evolution.
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Affiliation(s)
- Hui Zhao
- State Key Laboratory for Conservation and Utilization of Bio-resource, School of Life Sciences, School of Ecology and Environmental Science, Yunnan University, Kunming, 650091, China.
| | - Lin-Lin Liu
- State Key Laboratory for Conservation and Utilization of Bio-resource, School of Life Sciences, School of Ecology and Environmental Science, Yunnan University, Kunming, 650091, China
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, China
| | - Jian Sun
- The Third Affiliated Hospital, Kunming Medical University, Kunming, 650118, China
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Lian Jin
- State Key Laboratory for Conservation and Utilization of Bio-resource, School of Life Sciences, School of Ecology and Environmental Science, Yunnan University, Kunming, 650091, China
| | - Hai-Bing Xie
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jian-Bo Li
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Hui Xu
- The Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Dong-Dong Wu
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xiao-Lin Zhuang
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Min-Sheng Peng
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Ya-Jun Guo
- National Engineering Research Center for Antibody Medicine and Shanghai Key Laboratory of Cell Engineering and Antibody, Shanghai, 201203, China
| | - Wei-Zhu Qian
- National Engineering Research Center for Antibody Medicine and Shanghai Key Laboratory of Cell Engineering and Antibody, Shanghai, 201203, China
| | - Newton O Otecko
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Wei-Jie Sun
- State Key Laboratory for Conservation and Utilization of Bio-resource, School of Life Sciences, School of Ecology and Environmental Science, Yunnan University, Kunming, 650091, China
| | - Liang-Hu Qu
- The Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Jie He
- Department of Thoracic Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Zhao-Li Chen
- Department of Thoracic Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Rong Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China
| | - Ce-Shi Chen
- Academy of Biomedical Engineering, Kunming Medical University, Kunming, 650500, China.
- The Third Affiliated Hospital, Kunming Medical University, Kunming, 650118, China.
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Ya-Ping Zhang
- State Key Laboratory for Conservation and Utilization of Bio-resource, School of Life Sciences, School of Ecology and Environmental Science, Yunnan University, Kunming, 650091, China.
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China.
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Wu YQ, Cui SL, Zhu LP, Wu Q, Guo YJ, Wang JW. [The analysis of features of first-onset neuromyelitis optica spectrum disease within 1 year after delivery]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1801-1807. [PMID: 38008569 DOI: 10.3760/cma.j.cn112150-20230314-00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
To explore the clinical features and influencing factors of first-onset neuromyelitis optica spectrum disease (NMOSD) within 1 year after delivery. A single center, observational cohort study was used to retrospectively analyze 12 patients with first-onset NMOSD within 1 year after delivery hospitalized in the Department of Neurology of Beijing Tong Ren Hospital from June 2015 to June 2018(short as the postpartum onset group). 12 patients with first-onset NMOSD without 1 year after delivery hospitalized in our department during the same period were selected (short as the control group). The results showed the next recurrence interval in the postpartum onset group was longer than the control group [the postpartum onset group: (6.1±3.5) years, the control group: (1.6±1.5) years, t=3.622,P=0.005], the times of relapses were less than the control group [the postpartum onset group: (1.8±1.4) times, the control group:4.0 (3.0, 7.3) times, Z=-3.122,P=0.002], and expanded disability status scale (EDSS) of the last follow-up was lower than the control group [the postpartum onset group: 3.0(2.3, 3.9), the control group: 4.5(4.0, 6.0), Z=-3.358,P=0.001] with statistically significant differences. The recurrence rates of 1 year, 3 years and 5 years in the postpartum onset group (0%, 16.7%, 33.3%) were lower than control group (58.3%, 83.3%, 91.7%) with statistically significant differences (χ2=8.000,P=0.014;χ2=10.667,P=0.003; χ2=8.711,P=0.009). After the second delivery, the recurrence rate in postpartum onset group was 100% (n=3) and in control group was 50%(n=2), but the difference was not statistically significant (χ2=2.100,P=0.429). In the postpartum onset group, combination of autoimmune disease was consistent with positive in serum AQP-4 antibody moderately (Kappa=0.5, P=0.046). Positive in other autoimmune antibodies were consistent with positive in serum AQP-4 antibody moderately (Kappa=0.5, P=0.046). Combination of autoimmune disease were consistent with positive in serum other autoimmune antibodies well (Kappa=0.667, P=0.021). In conclusion, the first-onset NMOSD within 1 year after delivery have longer next recurrence interval, less times of relapses, lower relapse rate, better long-term prognosis of central nervous system, and they have trend to suffering from recurrent after the second delivery. For the females, combined with autoimmune disease or autoimmune antibody, who are ready for pregnancy, could detect serum AQP-4; if serum AQP-4 positive, they are recommended to prevent the occurrence of NMOSD after delivery.
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Affiliation(s)
- Y Q Wu
- Department of Neurology, Beijing Tongren hospital, Capital Medical University, Beijing 100176, China
| | - S L Cui
- Department of Neurology, Beijing Tongren hospital, Capital Medical University, Beijing 100176, China
| | - L P Zhu
- Department of Neurology, Beijing Tongren hospital, Capital Medical University, Beijing 100176, China
| | - Q Wu
- Department of Neurology, Beijing Tongren hospital, Capital Medical University, Beijing 100176, China
| | - Y J Guo
- Department of Neurology, Beijing Tongren hospital, Capital Medical University, Beijing 100176, China
| | - J W Wang
- Department of Neurology, Beijing Tongren hospital, Capital Medical University, Beijing 100176, China
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3
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Smarra C, Goncharov B, Barausse E, Antoniadis J, Babak S, Nielsen ASB, Bassa CG, Berthereau A, Bonetti M, Bortolas E, Brook PR, Burgay M, Caballero RN, Chalumeau A, Champion DJ, Chanlaridis S, Chen S, Cognard I, Desvignes G, Falxa M, Ferdman RD, Franchini A, Gair JR, Graikou E, Grießmeier JM, Guillemot L, Guo YJ, Hu H, Iraci F, Izquierdo-Villalba D, Jang J, Jawor J, Janssen GH, Jessner A, Karuppusamy R, Keane EF, Keith MJ, Kramer M, Krishnakumar MA, Lackeos K, Lee KJ, Liu K, Liu Y, Lyne AG, McKee JW, Main RA, Mickaliger MB, Niţu IC, Parthasarathy A, Perera BBP, Perrodin D, Petiteau A, Porayko NK, Possenti A, Leclere HQ, Samajdar A, Sanidas SA, Sesana A, Shaifullah G, Speri L, Spiewak R, Stappers BW, Susarla SC, Theureau G, Tiburzi C, van der Wateren E, Vecchio A, Krishnan VV, Wang J, Wang L, Wu Z. Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm. Phys Rev Lett 2023; 131:171001. [PMID: 37955508 DOI: 10.1103/physrevlett.131.171001] [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: 06/30/2023] [Revised: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 11/14/2023]
Abstract
Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millisecond radio pulsars. With the second data release of the European Pulsar Timing Array, we focus on the most robust scenario, in which dark matter interacts only gravitationally with ordinary baryonic matter. Our results show that ultralight particles with masses 10^{-24.0} eV≲m≲10^{-23.3} eV cannot constitute 100% of the measured local dark matter density, but can have at most local density ρ≲0.3 GeV/cm^{3}.
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Affiliation(s)
- Clemente Smarra
- SISSA-International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy and INFN, Sezione di Trieste
- IFPU-Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014 Trieste, Italy
| | - Boris Goncharov
- Gran Sasso Science Institute (GSSI), I-67100 L'Aquila, Italy
- INFN, Laboratori Nazionali del Gran Sasso, I-67100 Assergi, Italy
| | - Enrico Barausse
- SISSA-International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy and INFN, Sezione di Trieste
- IFPU-Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014 Trieste, Italy
| | - J Antoniadis
- Institute of Astrophysics, FORTH, Nikolaou Plastira 100, 70013, Heraklion, Greece
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - S Babak
- Université Paris Cité CNRS, Astroparticule et Cosmologie, 75013 Paris, France
| | - A-S Bak Nielsen
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
| | - C G Bassa
- ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands
| | - A Berthereau
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - M Bonetti
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Brera, via Brera 20, I-20121 Milano, Italy
| | - E Bortolas
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Brera, via Brera 20, I-20121 Milano, Italy
| | - P R Brook
- Institute for Gravitational Wave Astronomy and School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - M Burgay
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - R N Caballero
- Hellenic Open University, School of Science and Technology, 26335 Patras, Greece
| | - A Chalumeau
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - D J Champion
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - S Chanlaridis
- Institute of Astrophysics, FORTH, Nikolaou Plastira 100, 70013, Heraklion, Greece
| | - S Chen
- Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China
| | - I Cognard
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - G Desvignes
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - M Falxa
- Université Paris Cité CNRS, Astroparticule et Cosmologie, 75013 Paris, France
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
| | - R D Ferdman
- School of Physics, Faculty of Science, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - A Franchini
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - J R Gair
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Muühlenberg 1, 14476 Potsdam, Germany
| | - E Graikou
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - J-M Grießmeier
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - L Guillemot
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - Y J Guo
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - H Hu
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - F Iraci
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
- Universitá di Cagliari, Dipartimento di Fisica, S.P. Monserrato-Sestu Km 0,700-09042 Monserrato (CA), Italy
| | - D Izquierdo-Villalba
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - J Jang
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - J Jawor
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - G H Janssen
- ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands
- Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - A Jessner
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - R Karuppusamy
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - E F Keane
- School of Physics, Trinity College Dublin, College Green, Dublin 2, D02 PN40, Ireland
| | - M J Keith
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - M Kramer
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - M A Krishnakumar
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
| | - K Lackeos
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - K J Lee
- Institute of Astrophysics, FORTH, Nikolaou Plastira 100, 70013, Heraklion, Greece
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - K Liu
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - Y Liu
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - A G Lyne
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - J W McKee
- E.A. Milne Centre for Astrophysics, University of Hull, Cottingham Road, Kingston-upon-Hull, HU6 7RX, United Kingdom
- Centre of Excellence for Data Science, Artificial Intelligence and Modelling (DAIM), University of Hull, Cottingham Road, Kingston-upon-Hull, HU6 7RX, United Kingdom
| | - R A Main
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - M B Mickaliger
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - I C Niţu
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Parthasarathy
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - B B P Perera
- Arecibo Observatory, HC3 Box 53995, Arecibo, Puerto Rico 00612
| | - D Perrodin
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - A Petiteau
- Université Paris Cité CNRS, Astroparticule et Cosmologie, 75013 Paris, France
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - N K Porayko
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - A Possenti
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | | | - A Samajdar
- Institut für Physik und Astronomie, Universität Potsdam, Haus 28, Karl-Liebknecht-Str. 24/25, 14476, Potsdam, Germany
| | - S A Sanidas
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Sesana
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Brera, via Brera 20, I-20121 Milano, Italy
| | - G Shaifullah
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - L Speri
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Muühlenberg 1, 14476 Potsdam, Germany
| | - R Spiewak
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - B W Stappers
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - S C Susarla
- Ollscoil na Gaillimhe-University of Galway, University Road, Galway H91 TK33, Ireland
| | - G Theureau
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
- Laboratoire Univers et Théories LUTh, Observatoire de Paris, Université PSL, CNRS, Université de Paris, 92190 Meudon, France
| | - C Tiburzi
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - E van der Wateren
- ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands
- Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - A Vecchio
- Institute for Gravitational Wave Astronomy and School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | | | - J Wang
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
- Ruhr University Bochum, Faculty of Physics and Astronomy, Astronomical Institute (AIRUB), 44780 Bochum, Germany
- Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China
| | - L Wang
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Z Wu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
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Zhu FY, Guo YJ, Pang L, Gao J. [The facility design and operation effect of control vehicle emissions hazard in test section of automobile assembly workshop]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:866-870. [PMID: 37935557 DOI: 10.3760/cma.j.cn121094-20220428-00227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
The hazard of vehicle emissions mainly come from the four wheel positioning, drum test and vehicle emissions test sections in automobile assembly workshop, which can lead to abnormal hemoglobin and hepatic insufficiency in workers. We researched on preventing toxic gases technologies for the vehicle emissions generated by these three sections, designed the ventilation facilities, and then detected and evaluated the operation effect, thereby improving the working environment, ensuring the occupational health of workers, and providing scientific basis for the control of vehicle emissions hazards.
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Affiliation(s)
- F Y Zhu
- Institute of Emergency Technology, Jiangsu Academy of Safety Science and Technology, Nanjing 210042, China
| | - Y J Guo
- Jiangsu Xing'an Technology Development Co., Ltd., Nanjing 210023, China
| | - L Pang
- Jiangsu Zhangjiagang Free Trade Zone Safety & Environment Protection Management Burean, Suzhou 215634, China
| | - J Gao
- Institute of Emergency Technology, Jiangsu Academy of Safety Science and Technology, Nanjing 210042, China
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Zhang SY, Qian FY, Yuan BY, Guo YJ. A new CYP27A1 mutation in a case of cerebrotendinous xanthomatosis. Neurologia 2023; 38:375-378. [PMID: 37263730 DOI: 10.1016/j.nrleng.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/09/2022] [Indexed: 06/03/2023] Open
Affiliation(s)
- S Y Zhang
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - F Y Qian
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - B Y Yuan
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Y J Guo
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China.
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Guo YJ, Wang ZY, Wang YS, Chen B, Huang YQ, Li P, Tan Q, Zhang HY, Chen W. Impact of drinking water supplemented 2-hydroxy-4-methylthiobutyric acid in combination with acidifier on performance, intestinal development, and microflora in broilers. Poult Sci 2021; 101:101661. [PMID: 35042180 PMCID: PMC8777144 DOI: 10.1016/j.psj.2021.101661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 11/02/2021] [Accepted: 11/25/2021] [Indexed: 12/16/2022] Open
Abstract
In addition to offering methionine, 2-hydroxy-4-methylthiobutyric acid (HMTBa) is also an organic acid and shows excellent bacteriostasis. Therefore, 3 experiments were conducted to determine the influence of drinking water supplemented HMTBa in combination with acidifier on performance, intestinal development, and microflora in broilers. The addition of different concentration (0.02–0.20%) of the blend of HMTBa and other acids significantly reduced the pH of water and exerted antimicrobial activity in dose-dependent manner in vitro. The outcomes from animal trial consisting of the drinking water with blended acidifier at 0.00, 0.05, 0.10, 0.15, and 0.20% indicated that the water with 0.15 or 0.20% acidifier resulted in linear and quadratic higher body weight at 42 d, gain and water consumption during 1 to 42 d (P < 0.05). In experiment 3, responding to graded blended acidifier in drinking water, birds receiving 0.10, 0.15, and 0.20% acidifier decreased the internal pH of gastrointestinal tract and muscle, and exhibited increased duodenal weight, length, villus high, and the ratio of villus high to crypt depth. Drinking water with 0.2% blended acidifier increased the abundance of probiotics (Bacteroidaceae, Ruminococcaceae, and Lachnospiraceae) and decreased the account of pathogenic bacteria such as Desulfovibrionaceae. Alternations in gut microflora were closely related to the metabolism of carbohydrate, amino acid, and vitamins. These findings, therefore, suggest that drinking water with 0.10 to 0.13% the combination HMTBa with acidifier might benefit to intestinal development and gut microbiota, and the subsequent produce a positive effect on the performance of broilers.
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Affiliation(s)
- Y J Guo
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - Z Y Wang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - Y S Wang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - B Chen
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - Y Q Huang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - P Li
- Novus International, Shanghai, China, 200080
| | - Q Tan
- Novus International, Shanghai, China, 200080
| | - H Y Zhang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002.
| | - W Chen
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
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Tan RW, Liu X, Chen YY, Xu MQ, Guo YJ, Wang DY, Liang JM, Liu J, Yuan SS, Fan W, Wang XK, She ZD. [Experimental study on the effect of three-dimensional porous structures on the vascularization rate of artificial dermis]. Zhonghua Shao Shang Za Zhi 2021; 37:959-969. [PMID: 34689466 DOI: 10.3760/cma.j.cn501120-20200715-00347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of orienting three-dimensional porous network (type A) and honeycomb briquette-shaped vertically penetrating three-dimensional porous network (type B) on the vascularization rate of artificial dermis. Methods: The experimental research method was used. The artificial dermis was composed of a double layer of silicone layer and scaffold layer. Based on the difference of scaffold layer, they were divided into type A and type B artificial dermis (type A dermis and type B dermis, for short) containing type A and type B structure, respectively. The type A and type B structures were prepared by gradient freeze-drying technique and physical pore-making technique, respectively. The micro-morphology of two kinds of dermis scaffold was observed by scanning electron microscopy. The porosity of two kinds of dermis scaffold was measured by the Pyrex method. According to the method of national medical industry standard, the hydroxyproline content in degradation liquids and their residues in two kind of dermis were determined after degradation at 4, 8, 13, and 24 h, reflecting the degradation rates of two kinds of dermis. According to the random number table, L929 cells were divided into type A dermis group, type B dermis group, negative control group, and positive control group. The positive control group was added with minimum essential medium (MEM) containing 5% dimethyl sulfoxide, The negative control group was added with high-density polyethylene extract, and the other two groups were added with the corresponding extract. At 24 hours after culture, the growth rate of L929 cells was detected by methyl thiazolyl tetrazolium, and the cytotoxicity was graded. L929 cells and human umbilical vein endothelial cells (HUVECs) were inoculated into pore plates with two kinds of dermis preinstalled. On 1, 4, 7, and 14 d after inoculating, the adhesion and growth of L929 cells on the surfaces of the two kinds of scaffolds were detected by immunofluorescence method. On 7 d after inoculating, the migration of the above two kinds of cells into the two kinds of dermal scaffolds was detected by immunofluorescence and hematoxylin-eosin (HE) staining. Three full-thickness skin defect wounds of 5.0 cm×5.0 cm were created on both sides of the back of three 6-month-old healthy male Ba-Ma mini pigs. According to the random number table, six columns of wounds were divided into type A dermis two-step method group, type B dermis two-step method group, and type B dermis one-step method group. The wounds in type A dermis two-step method group and type B dermis two-step method group were transplanted with type A or type B dermis respectively before, and with autologous split-thickness skin grafting later. The wounds in type B dermis one-step method group were transplanted in a synchronous procedure including type B dermis (without silicone layer) and autologous skin grafting simultaneously. The bleeding, exudation, and infection of the wounds on the back in type A dermis two-step method group and type B dermis two-step method group on the 7th day after the second transplantation and in type B dermis one-step method group on the 14th day after the first transplantation were generally observed. The area of autologous skin graft was measured by the transparent film grid method, and the survival rate of autologous skin was calculated. On 4, 7, and 14 d after the first transplantation, the inflammatory cells, fibroblasts (Fbs), and capillary infiltration into the scaffolds of the three groups were detected by HE staining. On 7, 14 d after the first transplantation, the vascularization of the scaffolds was further observed by immunohistochemistry. On 28, 90 d after the first operation, the degradation of the scaffolds of type A dermis and type B dermis was observed by HE staining. Data were statistically analyzed with one-way analysis of variance, independent sample t test, and Bonferroni correction. Results: A large number of round and oval micropores were evenly distributed on the surface of type A scaffold, and the cylindrical hole walls could be observed arranging in a parallel direction in the longitudinal section. The honeycomb briquette-shaped penetrating macropores on the surface of type B scaffold were arranged in an orderly matrix. The pore walls of the honeycomb briquette-shaped penetrating macropores were connected by micropores to form a network structure. The porosity of type A dermis was (93.21±0.72)%, which was similar to (95.88±1.00)% of type B dermis (t=4.653, P>0.05). The degradation rates of type A dermis at 4, 8, 13, and 24 h were similar to those of type B dermis at the corresponding time point (t=0.232, 0.856, 0.258, 7.716, P>0.05). At 24 h after culture, the proliferation rates of L929 cells in the type A dermis group, type B dermis group, and negative control group were significantly higher than those of the positive control group (t=2 393.46, 2 538.27, 1 077.77, P<0.01). The cytotoxicity rating of cells in positive control group was grade 4, while that of the other three groups was grade zero. On 1, 4, 7, and 14 d after inoculation, both L929 cells and HUVECs proliferated in a time-dependent manner in two kinds of dermal scaffolds. The adhesion growth and proliferation rate of the two kinds of cells on the surface of type B dermis was higher than that of type A dermis. On 7 d after inoculation, both L929 cells and HUVECs covered the surface of type B dermis and migrated into one side of the silicone layer. However, the above two kinds of cells migrated slowly into type A dermis, and only a few cells were found on one side of the silicone layer. There was no bleeding, exudation, or infection in the wounds repaired by type A and type B dermis. The survival rate of autologous skin grafting of 6 wounds in each group was 100%. On 4, 7, and 14 d after the first operation, inflammatory cells, Fbs, and capillaries gradually infiltrated into the scaffold layer, and the cell infiltration rate from high to low was type B dermis one-step method group, type B dermis two-step method group, and type A dermis two-step method group. The scaffold in wound in the type B dermis one-step method group gradually collapsed on 28 d after the first operation, and completely degraded in 3 months after the first operation. The scaffold degradation rate of type A dermis two-step method group was similar to that mentioned above. Conclusions: The honeycomb briquette-shaped vertically penetrating three-dimensional porous network structure of type B scaffold can accelerate its vascularization process, which is beneficial to autogenous split-thickness skin in one-step procedure to repair full-thickness skin defects wound in Ba-Ma mini pigs. Compared with the "two-step method" of staged transplantation of type A scaffold and autologous split-thickness skin, and one-step transplantation has equal efficacy and can provide a better choice for wound treatment.
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Affiliation(s)
- R W Tan
- Shenzhen Lando Biomaterials Co., Ltd., Shenzhen Engineering Research Center of Implantable Medical Polymer, Guangdong Engineering Research Center of Implantable Medical Polymer, Shenzhen 518107, China
| | - X Liu
- Shenzhen Tsing Care Medical Co., Ltd., Shenzhen 518107, China
| | - Y Y Chen
- Shenzhen Tsing Care Medical Co., Ltd., Shenzhen 518107, China
| | - M Q Xu
- Shenzhen Tsing Care Medical Co., Ltd., Shenzhen 518107, China
| | - Y J Guo
- Shenzhen Tsing Care Medical Co., Ltd., Shenzhen 518107, China
| | - D Y Wang
- Shenzhen Lando Biomaterials Co., Ltd., Shenzhen Engineering Research Center of Implantable Medical Polymer, Guangdong Engineering Research Center of Implantable Medical Polymer, Shenzhen 518107, China
| | - J M Liang
- Shenzhen Tsing Care Medical Co., Ltd., Shenzhen 518107, China
| | - J Liu
- Shenzhen Lando Biomaterials Co., Ltd., Shenzhen Engineering Research Center of Implantable Medical Polymer, Guangdong Engineering Research Center of Implantable Medical Polymer, Shenzhen 518107, China
| | - S S Yuan
- Department of Burns, the Fifth Hospital of Baoding City, Baoding 071027, China
| | - W Fan
- Department of Burns, the Fifth Hospital of Baoding City, Baoding 071027, China
| | - X K Wang
- Department of Burns, the Fifth Hospital of Baoding City, Baoding 071027, China
| | - Z D She
- Shenzhen Lando Biomaterials Co., Ltd., Shenzhen Engineering Research Center of Implantable Medical Polymer, Guangdong Engineering Research Center of Implantable Medical Polymer, Shenzhen 518107, China
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Wang RL, Jia SK, Guo YJ, Yi Y, Hua YZ, Lu HJ, Wang MC. Dinuclear zinc-catalyzed enantioselective formal [3 + 2] cycloaddition of N-2,2,2-trifluoroethylisatin ketimines with low reactivity aurone derivatives. Org Biomol Chem 2021; 19:8492-8496. [PMID: 34549771 DOI: 10.1039/d1ob01599k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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
Highly enantioselective formal [3 + 2] cycloaddition of N-2,2,2-trifluoroethylisatin ketimines with aurone derivatives of low reactivity using chiral dinuclear zinc catalysts has been developed via a Brønsted base and Lewis acid cooperative activation model. These transformations involving a domino Michael/Mannich reaction sequence led to efficient construction of a range of chiral spiro[benzofuran-pyrrolidine] scaffolds bearing three biologically relevant heterocyclic moieties and two adjacent spiro quaternary stereocenters in high yields (up to 95%) and with good enantioselectivities (up to 99% ee).
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Affiliation(s)
- Rui-Li Wang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Shi-Kun Jia
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Ya-Jun Guo
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Yang Yi
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Yuan-Zhao Hua
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Hui-Jie Lu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Min-Can Wang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
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Shang QH, Liu JN, Lang WZ, Yan X, Guo XJ, Guo YJ. Improved Catalytic Activity and Chemical Stability of Defective TiO 2 Catalysts by Doping Rare Earth Metal Sc for Propane Dehydrogenation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01568] [Citation(s) in RCA: 3] [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] [Indexed: 11/28/2022]
Affiliation(s)
- Qing-He Shang
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Jing-Nan Liu
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Xiao-Jing Guo
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
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Mfoundou JDL, Guo YJ, Liu MM, Ran XR, Fu DH, Yan ZQ, Li MN, Wang XR. The morphological and histological study of chicken left ovary during growth and development among Hy-line brown layers of different ages. Poult Sci 2021; 100:101191. [PMID: 34242943 PMCID: PMC8271164 DOI: 10.1016/j.psj.2021.101191] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/25/2021] [Accepted: 04/05/2021] [Indexed: 10/25/2022] Open
Abstract
Chicken ovaries are known to develop asymmetrically and only the left ovary fully develops. Although both have been greatly investigated, a gap in scientific reports is still felt between 2-mo-old and sexual maturity. In this study, we aimed at investigating the changes in components that occur during growth to analyze the morphohistological correlation between the left ovary and the follicle development at different age stages in Gallus domesticus. The ovaries were harvested from 60 chickens aged 1 and 3-wk-old, 1, 2, 3, and 4-mo-old (n = 10 per age group), then fixed in AAF solution. Hematoxylin-and Eosin protocol was used to stain the tissue for microscopic observations. Results revealed that the left ovary exhibited an ovarian tissue, a site of follicular growth that displayed various shapes from smooth to greatly indented as the follicles differentiated. Atretic follicles at various regression stages were noticed frequently as the chicks grew in age from 3-wk-old onward along with their differentiation. Rete ovarii, remnants from the male homologs were observed throughout the whole study showing epoöphoron, connecting rete, and gland-like structures that tend to diminish with age. The feature of the left ovary is closely related to the follicular developmental stage, and the bigger and differentiated the follicles are, the more indented and irregular its epithelium appears. Atresia is a normal physiological process that we observed throughout the whole study. Also that, rete ovarii do not spontaneously arise in the ovary but it develops and grows in juvenile chicken as well as in adult ones.
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Affiliation(s)
- J D L Mfoundou
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - Y J Guo
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - M M Liu
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - X R Ran
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - D H Fu
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - Z Q Yan
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - M N Li
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China
| | - X R Wang
- College of Animal Science and Technology, Gansu Agricultural University, No. 1, Yingmen Village, Bei Binhe West Road, Anning District, Lanzhou, Gansu Province 730070, China.
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Xu ZN, Huang JJ, Zhou J, Huang WS, Guo YJ, Cai MY, Zhou JW, Lin LT, Liang LC, Zhu KS. [Efficacy and safety of anti-PD-1 monoclonal antibody in advanced hepatocellular carcinoma after TACE combined with TKI therapy]. Zhonghua Nei Ke Za Zhi 2021; 60:630-636. [PMID: 34619840 DOI: 10.3760/cma.j.cn112138-20200928-00841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy and safety of anti-programmed cell death 1 (PD-1) receptor monoclonal antibody (MoAb) in patients with advanced hepatocellular carcinoma (HCC) after treatment of transcatheter arterial chemoembolization (TACE) combined with tyrosine kinase inhibitor (TKI). Methods: From February 2019 to February 2020, 56 HCC patients who relapsed after TACE-TKI treatment in Department of Interventional Radiology, The Second Affiliated Hospital of Guangzhou Medical University were enrolled. All patients received anti-PD-1 MoAb (sintilimab injection) and followed up every 6 weeks. According to mRECIST, the curative effect was evaluated as complete response (CR), partial response (PR), stable disease (SD) or progressive disease (PD). Objective response rate (ORR) and disease control rate (DCR), progression-free survival (PFS) and treatment-related adverse events (TRAEs) were recorded. Univariate analysis by Chi-square test and binary logistic regression model was used to determine the influencing factors of DCR. The Kaplan-Meier method and Cox proportional hazard regression model were used to analyze the survival data. Results: A total of 48 patients were enrolled in this study including 42 males and 6 females, with a median age of 55 years (29-71 years). ECOG scores comprised of 0 in 24 cases, 1-2 in 24 cases. Thirty-six patients were in Child-Pugh grade A of liver function and 12 cases were grade B. The median follow-up time was 4.5 months. There were 2 patients achieved CR, 12 patients with PR and 16 with SD. ORR was 29.2%, DCR was 62.5%. The independent influencing factors of DCR was ECOG score and AFP level (P=0.031, P=0.012). Median PFS was 4.1 months (95%CI 2.7-5.4 months), and ECOG score was the independent influencing factor of PFS (P=0.042). Treatment-related adverse events were reported in 70.8% (34/48) patients. Incidence of grade Ⅲ-Ⅳ TRAEs was 22.9% (11/48). Conclusion: In patients with HCC who relapse from TACE and TKI treatment, anti-PD-1 monoclonal antibody is efficacious safe especially in those with ECOG 0 score.
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Affiliation(s)
- Z N Xu
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - J J Huang
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - J Zhou
- Department of Pharmacy, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - W S Huang
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - Y J Guo
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - M Y Cai
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - J W Zhou
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - L T Lin
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - L C Liang
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
| | - K S Zhu
- Department of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University,Guangzhou 510260,China
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12
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Shen JH, Li MM, Chu LF, Guo CX, Guo YJ, Guo YP. Effect mechanism of copper ions on photocatalytic activity of TiO 2/graphene oxide composites for phenol-4-sulfonic acid photodegradation. J Colloid Interface Sci 2021; 586:563-575. [PMID: 33190833 DOI: 10.1016/j.jcis.2020.10.121] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 06/17/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 11/25/2022]
Abstract
Organic pollutants in electroplating wastewater can be removed by photodegradation, however the effect mechanism of heavy metal ions on photocatalytic activity still remains unknown. Herein, we firstly reported the self-assembly synthesis of titanium dioxide/reduced graphene oxide (TiO2/rGO) composites for phenol-4-sulfonic acid (PSA) removal, and investigated the effects of Cu2+ ions on photocatalytic efficiency. During the self-assemble process, rGO nanosheets were connected together to form network macropores, and simultaneously induced the deposition of hierarchically nanostructured TiO2 microspheres. The synergetic effects of TiO2 microspheres and rGO nanosheets improved the photocatalytic activity by enhancing light adsorption ability, stabilizing electron-hole separation and decreasing band gap energy. The Cu2+ ions in wastewater showed positive and negative effects on PSA photodegradation. In the photocatalytic reaction, the electron-induced reduction reaction of Cu(II) into Cu(0) or Cu(I) took place, which inhibited electron-hole recombination and thus enhanced photocatalytic activity. However, the high chemical stability of PSA-Cu(II) complex compounds held back PSA photodegradation. The appropriate concentrations of Cu2+ ions at around 25 mg/L accelerated PSA photodegradation over TiO2/rGO composites. The PSA degradation into CO2 and H2O was performed by using hydroquinone, benzoquinone and maleic acid as degradation intermediates. Hence, TiO2/rGO composites are novel multifunctional photocatalysts to purify electroplating wastewater.
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Affiliation(s)
- Jia-Hao Shen
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China
| | - Miao-Miao Li
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China
| | - Lian-Feng Chu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China
| | - Cui-Xiang Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China
| | - Ya-Jun Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China
| | - Ya-Ping Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China.
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Zhou YC, Lin YP, Li Q, Ma LY, Liu X, Wang XX, Li HS, Liu JX, Shen ZH, Guo YJ, Du YX, Yang RJ, Huang YC, Dai M, Zhang Q. [Analysis of EGFR mutation and clinical features of lung cancer in Yunnan]. Zhonghua Zhong Liu Za Zhi 2020; 42:729-734. [PMID: 32988154 DOI: 10.3760/cma.j.cn112152-20200313-00201] [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 analyze the EGFR mutation profile of lung cancer patients in Yunnan, and to provide evidence for clinical personalized treatment. Methods: Demographic and clinical data of 2 967 lung cancer patients undergoing EGFR identification were collected and analyzed from January 2014 to August 2019 in Yunnan Cancer Hospital. Results: The proportion of EGFR mutation in 2 967 patients with lung cancer was 46.2%. Univariate analysis showed that the proportion of EGFR mutation in women was higher than that in men (P<0.001) and displayed a downward trend with age (P=0.03). The mutation rate of ethnic minorities was higher than Han (P=0.012). Mutation rate in patients without smoking history was higher than those with smoking history (P<0.001), and patients without drinking history was higher than patients with drinking history (P<0.001). Mutation rate in patients without family history of lung cancer was higher than those with family history (P=0.008). The mutation rate of adenocarcinoma was higher than other pathological types (P<0.001). The mutation rate was different among stages, and it was higher in early patients than that in advanced patients (P<0.001). The mutation rate of tissue specimens was higher than those of cytology and peripheral blood samples (P<0.001). The mutation rate of Xuanwei area was lower than that in non-Xuanwei area (P<0.001). Multivariate analysis showed that gender (P<0.001), age (P=0.036), smoking history (P<0.001), pathological type (P<0.001), specimen type (P<0.001), and whether or not Xuanwei area (P<0.001) were the independent factors of EGFR mutation.The EGFR mutation was more common in female, non-smokers, adenocarcinoma, non-Xuanwei area, tissue specimen and young lung cancer patients.The mutation types of EGFR in 1 370 cases mainly included 19-Del and L858R. The predominant mutation of EGFR in Xuanwei area was L858R, while in non-Xuanwei area was 19-Del.The mutation rates of G719X, G719X+ L861Q, G719X+ S768I, and S768I in Xuanwei were higher while the mutation rates of 19-Del, L858R, and 20-ins were lower than non-Xuanwei area (P<0.05). The 19-Del mutation rate of ethnic minorities is higher than that of Han (P<0.001). The combined mutation rate of G719X, L861Q in Han was higher than that of ethnic minorities (P=0.005). Conclusions: The EGFR mutation rate in lung cancer patients in Yunnan is similar to Asian and Chinese, and higher in female, non-smokers, adenocarcinomas, young and non-Xuanwei area patients. The most common types of EGFR mutation in Yunnan are 19-Del and L858R. The predominant mutation of EGFR in Xuanwei area is L858R, while in non-Xuanwei area is 19-Del. The mutation rates of G719X, G719X+ L861Q, G719X+ S768I and S768I are higher in Xuanwei patients than those in non-Xuanwei patients. The combined mutation rate of G719X and L861Q in Han nationality is higher than that of ethnic minorities.
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Affiliation(s)
- Y C Zhou
- Molecular Diagnostic Branch Center of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - Y P Lin
- Office of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - Q Li
- Molecular Diagnostic Branch Center of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - L Y Ma
- Molecular Diagnostic Branch Center of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - X Liu
- Molecular Diagnostic Branch Center of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - X X Wang
- Yunnan Provincial Key Laboratory of Lung Cancer, Kunming 650118, China
| | - H S Li
- Yunnan Provincial Key Laboratory of Lung Cancer, Kunming 650118, China
| | - J X Liu
- Yunnan Provincial Key Laboratory of Lung Cancer, Kunming 650118, China
| | - Z H Shen
- Office of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - Y J Guo
- Plateau Regional High-Rise Cancer International Cooperation Laboratory of Ministry of Education, Kunming 650118, China
| | - Y X Du
- Plateau Regional High-Rise Cancer International Cooperation Laboratory of Ministry of Education, Kunming 650118, China
| | - R J Yang
- Yunnan Provincial Key Laboratory of Lung Cancer, Kunming 650118, China
| | - Y C Huang
- Molecular Diagnostic Branch Center of Yunnan Cancer Center, Yunnan Cancer Hospital, Kunming 650118, China
| | - M Dai
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q Zhang
- Medical Center, Yunnan Cancer Hospital, Kunming 650118, China
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14
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Zang YW, Li ZY, Gu XD, Zhou YM, Yang Y, Zhou MW, Wang ZH, Guo YJ, Chen ZY, Xiang JB. [Analysis of technical feasibility and safety of robot-assisted subtotal intersphincteric resection for ultra-low rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:405-407. [PMID: 32306610 DOI: 10.3760/cma.j.cn.441530-20190314-00092] [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: 11/05/2022]
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15
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Wang JL, Guo YJ, Long GD, Tang YL, Tang QB, Zu XT, Ma JY, Du B, Torun H, Fu YQ. Integrated sensing layer of bacterial cellulose and polyethyleneimine to achieve high sensitivity of ST-cut quartz surface acoustic wave formaldehyde gas sensor. J Hazard Mater 2020; 388:121743. [PMID: 31836372 DOI: 10.1016/j.jhazmat.2019.121743] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/05/2019] [Accepted: 11/21/2019] [Indexed: 06/10/2023]
Abstract
Surface acoustic wave (SAW)-based formaldehyde gas sensor using bi-layer nanofilms of bacterial cellulose (BC) and polyethyleneimine (PEI) was developed on an ST-cut quartz substrate using sol-gel and spin coating processes. BC nanofilms significantly improve the sensitivity of PEI films to formaldehyde gas, and reduces response and recovery times. The BC films have superfine filamentary and fibrous network structures, which provide a large number of attachment sites for the PEI particles. Measurement results obtained using in situ diffuse reflectance Fourier transform infrared spectroscopy showed that the primary amino groups of PEI strongly adsorb formaldehyde molecules through nucleophilic reactions, thus resulting in a negative frequency shift of the SAW sensor due to the mass loading effect. In addition, experimental results showed that the frequency shifts of the SAW devices are determined by thickness of PEI film, concentration of formaldehyde and relative humidity. The PEI/BC sensor coated with three layers of PEI as the sensing layer showed the optimal sensing performance, which had a frequency shift of 35.6 kHz for 10 ppm formaldehyde gas, measured at room temperature and 30 % RH. The sensor also showed good selectivity and stability, with a low limit of detection down to 100 ppb.
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Affiliation(s)
- J L Wang
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Y J Guo
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, PR China.
| | - G D Long
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Y L Tang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu, 610031, PR China.
| | - Q B Tang
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - X T Zu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - J Y Ma
- Sichuan Institute of Piezoelectric and Acousto-Optic Technology, Chongqing, 400060, PR China
| | - B Du
- Sichuan Institute of Piezoelectric and Acousto-Optic Technology, Chongqing, 400060, PR China
| | - H Torun
- Faculty of Engineering & Environment, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UK
| | - Y Q Fu
- Faculty of Engineering & Environment, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UK.
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16
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Zhang CJ, Hu M, Ke QF, Guo CX, Guo YJ, Guo YP. Nacre-inspired hydroxyapatite/chitosan layered composites effectively remove lead ions in continuous-flow wastewater. J Hazard Mater 2020; 386:121999. [PMID: 31901547 DOI: 10.1016/j.jhazmat.2019.121999] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/23/2019] [Accepted: 12/28/2019] [Indexed: 06/10/2023]
Abstract
Design and fabrication of novel adsorbents to remove heavy metal ions in continuous-flow wastewater remained a great challenge. Inspired by the hierarchical architecture and biomineralization process of nacre, we firstly constructed hydroxyapatite/chitosan (HA/CH) layered composites. The brick-and-mortar characteristics of HA/CH layered composites improved their flexure strengths up to 3.08 MPa so that the hierarchical architectures could not be destroyed even under high-pressure drop. HA/CH layered composites had the hierarchical microstructures analogous to plate towers, facilitating the separation of adsorbents from water. The interlaminar macropores in the layered composites contributed to the transfer of continuous-flow wastewater. The Pb(II), Cd(II) and Hg(II) ions in wastewater showed similar adsorption trends, and their adsorption amounts arrived at 295.96, 192.37 and 127.38 mg g-1 after 6 days, respectively. Among the above heavy metal ions, the HA/CH layered composites possessed the best Pb(II) adsorption ability due to forming lead hydroxyapatite rods and CH-Pb complexes. The Pb(II) adsorption performances of HA/CH layered composites matched well with Elovich equation, pseudo-first-order and pseudo-second-order kinetics models, revealing the heterogeneous chemisorption mechanism at adsorbent/wastewater interfaces. Therefore, the nacre-like HA/CH layered composites with appropriate mechanical property and excellent adsorption capacity are a novel platform for heavy metal removal in continuous-flow wastewater.
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Affiliation(s)
- Chuan-Jian Zhang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Min Hu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Qin-Fei Ke
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Cui-Xiang Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Ya-Jun Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Ya-Ping Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
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17
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Guo YJ, Guo X, Kong DZ, Lu HJ, Liu LT, Hua YZ, Wang MC. Catalytic Asymmetric Synthesis of Tetrahydrofuran Spirooxindoles via a Dinuclear Zinc Catalyst. J Org Chem 2020; 85:4195-4206. [DOI: 10.1021/acs.joc.9b03378] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ya-Jun Guo
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Xin Guo
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - De-Zhi Kong
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Hui-Jie Lu
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Lan-Tao Liu
- School of Chemistry & Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, P. R. China
| | - Yuan-Zhao Hua
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Min-Can Wang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
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18
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Affiliation(s)
- Chun-Feng Li
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Xiaojing Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Qing-He Shang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Cuilan Ren
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
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19
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Hu P, Chen Y, Yan X, Lang WZ, Guo YJ. Correlation of the Vanadium Precursor and Structure Performance of Porous VOX-SiO2 Solids for Catalytic Dehydrogenation of Propane. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06089] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ping Hu
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Yan Chen
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
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20
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Lu JJ, Gu YH, Chen Y, Yan X, Guo YJ, Lang WZ. Ultrahigh permeability of graphene-based membranes by adjusting D-spacing with poly (ethylene imine) for the separation of dye wastewater. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.08.065] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Yang QQ, Hu P, Xiu NY, Lang WZ, Guo YJ. VOx
/γ-Al2
O3
Catalysts for Propane Dehydrogenation Prepared by “Impregnation-Solid Phase Reaction” Method with Aluminum Hydroxide as Support Precursor. ChemistrySelect 2018. [DOI: 10.1002/slct.201802070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qi-Qi Yang
- The Education Ministry Key Laboratory of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Department of Chemistry and Chemical Engineering; Shanghai Normal University; 100 Guilin Road Shanghai 200234 China
| | - Ping Hu
- The Education Ministry Key Laboratory of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Department of Chemistry and Chemical Engineering; Shanghai Normal University; 100 Guilin Road Shanghai 200234 China
| | - Nai-Yun Xiu
- The Education Ministry Key Laboratory of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Department of Chemistry and Chemical Engineering; Shanghai Normal University; 100 Guilin Road Shanghai 200234 China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Department of Chemistry and Chemical Engineering; Shanghai Normal University; 100 Guilin Road Shanghai 200234 China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Department of Chemistry and Chemical Engineering; Shanghai Normal University; 100 Guilin Road Shanghai 200234 China
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22
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Han ZF, Xue XL, Wu JM, Lang WZ, Guo YJ. Preparation and catalytic properties of mesoporous n V-MCM-41 for propane oxidative dehydrogenation in the presence of CO 2. Chinese Journal of Catalysis 2018. [DOI: 10.1016/s1872-2067(18)63048-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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23
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Hu P, Lang WZ, Yan X, Chu LF, Guo YJ. Influence of gelation and calcination temperature on the structure-performance of porous VOX-SiO2 solids in non-oxidative propane dehydrogenation. J Catal 2018. [DOI: 10.1016/j.jcat.2017.12.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Zuo JH, Cheng P, Chen XF, Yan X, Guo YJ, Lang WZ. Ultrahigh flux of polydopamine-coated PVDF membranes quenched in air via thermally induced phase separation for oil/water emulsion separation. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Huang YW, Wang ZM, Yan X, Chen J, Guo YJ, Lang WZ. Versatile polyvinylidene fluoride hybrid ultrafiltration membranes with superior antifouling, antibacterial and self-cleaning properties for water treatment. J Colloid Interface Sci 2017; 505:38-48. [DOI: 10.1016/j.jcis.2017.05.076] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 05/23/2017] [Accepted: 05/23/2017] [Indexed: 11/15/2022]
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Wang H, Wang ZM, Yan X, Chen J, Lang WZ, Guo YJ. Novel organic-inorganic hybrid polyvinylidene fluoride ultrafiltration membranes with antifouling and antibacterial properties by embedding N-halamine functionalized silica nanospheres. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.03.059] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu JY, Liu QM, Guo YJ, Lin DJ. [Risk factors for pulmonary fibrosis in patients with paraquat poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 34:520-522. [PMID: 27682488 DOI: 10.3760/cma.j.issn.1001-9391.2016.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the risk factors for pulmonary fibrosis in patients with paraquat (PQ) poisoning. Methods: A total of 120 patients with PQ poisoning who were admitted from January 2012 to December 2014 were enrolled. According to the presence or absence of pulmonary fibrosis, the patients were divided into non-pulmonary fibrosis group (67 patients) and pulmonary fibrosis group (53 patients) . The Acute Physiology and Chronic Health Evaluation II (APACHE II) score was obtained on days 1 and 3 of poisoning. Routine blood test results, blood biochemical parameters, and radiological parameters were recorded, and the patients with PQ poisoning were followed up for survival and pulmonary fibrosis. Results: A total of 39 patients with PQ poisoning died, resulting in a mortality rate of 32.5%. There were 53 patients who developed pulmonary interstitial fibrosis, yielding an incidence rate of 44.2%. Compared with the non-pulmonary fibrosis group, the pulmonary fibrosis group had a significantly higher age, a significantly higher dose of PQ, and significantly higher APACHE II scores on days 1 and 3 of poisoning (P<0.01) , as well as significantly higher white blood cell (WBC) count and neutrophil count on day 1, significantly higher levels of urea nitrogen, creatinine, and blood glucose on days 1 and 3, and significantly higher activities of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) (P<0.01) . The logistic regression analysis showed that the dose of PQ, WBC count and neutrophil count on day 1, APACHE II scores on days 1 and 3 of poisoning, levels of urea nitrogen, creatinine, and blood glucose, and activities of AST and ALT were associated with the development of pulmonary fibrosis in patients with PQ poisoning. Conclusion: Oral dose of PQ, APACHE II scores on days 1 and 3 of poisoning, levels of urea nitrogen, creatinine, and blood glucose, activities of AST and ALT, and WBC count and neutrophil count on day 1 are risk factors for pulmonary fibrosis in patients with paraquat poisoning.
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Affiliation(s)
- J Y Liu
- Deparment of Respiration, Shandong Provincial Hospital, Shandong University
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Li M, Lu B, Ke QF, Guo YJ, Guo YP. Synergetic effect between adsorption and photodegradation on nanostructured TiO 2/activated carbon fiber felt porous composites for toluene removal. J Hazard Mater 2017; 333:88-98. [PMID: 28342359 DOI: 10.1016/j.jhazmat.2017.03.019] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 03/04/2017] [Accepted: 03/08/2017] [Indexed: 05/24/2023]
Abstract
The low quantum efficiency and limited adsorption efficiency of TiO2 makes it only fit for the removal of VOCs with low concentrations. Herein, we for the first time fabricated nanostructured TiO2/activated carbon fiber felt (TiO2/ACFF) porous composites by the in situ deposition of TiO2 microspheres on the carbon fibers in ACFF. Interestingly, the TiO2 microspheres exhibit hierarchical nanostructures constructed by nanocrystals as building blocks. The TiO2/ACFF porous composites possess excellent adsorption and photodegradation properties for toluene because of the synergetic effects between the nanostructured TiO2 and ACFF. The adsorption efficiencies of the TiO2/ACFF porous composites reach approximately 98% at the toluene concentration (<1150ppm) and approximately 77% even at the high concentration of 6900ppm. Moreover, the ACFF in the TiO2/ACFF porous composites significantly enhances photocatalytic property for toluene by hindering the recombination of electron-hole pairs, reducing the TiO2 band gap energy (Eg) to 2.95eV and accelerating toluene adsorption. At the toluene concentrations of 230ppm and 460ppm, the photocatalytic oxidation efficiency of toluene into CO2 arrives at 100% and 81.5%, respectively. Therefore, the TiO2/ACFF porous composites with synergetic adsorption and photocatalytic activities have great potentials for toluene removal.
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Affiliation(s)
- Min Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Bin Lu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Qin-Fei Ke
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Ya-Jun Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Ya-Ping Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
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Long LL, Xia K, Lang WZ, Shen LL, Yang Q, Yan X, Guo YJ. The comparison and optimization of zirconia, alumina, and zirconia-alumina supported PtSnIn trimetallic catalysts for propane dehydrogenation reaction. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.03.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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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30
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Liu WL, Zhao JZ, Wang ZZ, Dong B, Hou YY, Wu XX, Guo YJ. [Association between single nucleotide polymorphism of BARD1 gene and BRCA1 gene mutation in epithelial ovarian cancer]. Zhonghua Fu Chan Ke Za Zhi 2017. [PMID: 28647964 DOI: 10.3760/cma.j.issn.0529-567x.2017.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between single nucleotide polymorphism (SNP) of BARD1 gene and BRCA1 gene in epithelial ovarian cancer (EOC). Methods: Nineteen EOC patients with BRCA1 gene mutation and 50 EOC cases without BRCA1 gene mutation between January 2016 and October 2016 were collected, and all EOC were diagnosed by pathological method. BARD1 gene variants were detected by next generation sequencing (NGS). The SNP of BARD1 gene was analyzed by Pearson linear correlation. Logistic regression analysis was used to research the clinicopathologic features and BRCA1 gene mutation associated with BARD1 gene SNP. Pearson's chi-square test was used to analyze the association between BARD1 gene Val507Met, Arg378Ser and Pro24Ser with different clinicopathologic features and BRCA1 gene mutation risk. Results: (1) Eight BARD1 gene variants were found in 69 ovarian cancer patients, in which Val507Met, Arg378Ser and Pro24Ser were common variants, and the rate of mutation were all 54% (37/69). (2) There was a significant linear correlation among Val507Met, Arg378Ser and Pro24Ser (all P<0.01). (3) Obvious differences were found in Val507Met, Arg378Ser and Pro24Ser of BARD1 gene between BRCA1(+) and BRCA1(-) (all P<0.05) . (4) No differences were found between BARD1 gene Val507Met, Arg378Ser and Pro24Ser and the clinicopathologic features (all P>0.05), while obvious differences were found in BRCA1 gene mutation compared to the controls group. The risk of BRCA1 mutation in Val507Met and Arg378Ser were more evident in subjects with negative family history, positive menopause history, negative tubal ligation, onset age (≤60 years old) and sensitivity to platinum-based chemotherapy in EOC (all P<0.05), while Pro24Ser was only more evident in positive menopause history of EOC (P<0.05). Conclusions: BARD1 Val507Met, Arg378Ser and Pro24Ser are the common genotypes, which are associated with BRCA1 mutation in EOC. The family history, menopause history, tubal ligation, onset age and sensitivity to platinum-based chemotherapy have effects on BARD1 SNP in the risk of BRCA1 gene mutation.
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Affiliation(s)
- W L Liu
- Department of Molecular Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
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Xue XL, Lang WZ, Yan X, Guo YJ. Dispersed Vanadium in Three-Dimensional Dendritic Mesoporous Silica Nanospheres: Active and Stable Catalysts for the Oxidative Dehydrogenation of Propane in the Presence of CO 2. ACS Appl Mater Interfaces 2017; 9:15408-15423. [PMID: 28425291 DOI: 10.1021/acsami.7b01498] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The uniform monodispersed vanadium-doped three-dimensional dendritic mesoporous silica nanospheres (nV-MSNSs) were successfully synthesized in a heterogeneous oil-water biphase stratification reaction system and characterized by several state-of-the-art methods. The synthesized nV-MSNSs were applied to the oxidative dehydrogenation of the propane (ODHP) reaction with the presence of CO2 and exhibited excellent catalytic performances. The results show that the vanadium loading (1.3-8.0 wt %) evidently influences the textural properties, oxidation state, and polymerization degree of vanadium species of nV-MSNSs. The specific surface area (SBET), pore diameter (Dp), and pore volume (Vp) of nV-MSNSs decrease with the loading of vanadium species. The excessively high vanadium loading leads to the slight connection of nanospheres, but does not affect the assembly and growth of the three-dimensional (3D) dendritic channels. The percentage of highly dispersed vanadium VV species gradually increases and attains the maximum value for 5.2V-MSNSs with the loading of vanadium and then decreases with further vanadium addition. The higher-polymerized VOx species gradually generates above 5.2 wt % vanadium content for nV-MSNSs. The lower-polymerized VOx species appear to be more active than the higher-polymerized VOx species. Markedly, the 5.2V-MSNSs exhibit the highest catalytic activity with the initial propane conversion of 58% for the ODHP. The excellent catalytic performance can be maintained after eight reaction-regeneration cycles. The silica mesoporous frameworks can be well preserved in the reaction-regeneration cycles; meanwhile, the highly dispersed vanadium oxide also can be fully recovered after in situ regeneration. Hence, nV-MSNS catalysts exhibit outstanding activity and stability, and it would have a promising application in the DH of alkanes.
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Affiliation(s)
- Xu-Liang Xue
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry and Chemical Engineering, Shanghai Normal University , 100 Guilin Road, Shanghai 200234, China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry and Chemical Engineering, Shanghai Normal University , 100 Guilin Road, Shanghai 200234, China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry and Chemical Engineering, Shanghai Normal University , 100 Guilin Road, Shanghai 200234, China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry and Chemical Engineering, Shanghai Normal University , 100 Guilin Road, Shanghai 200234, China
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Meng DM, Zhao JF, Ling X, Dai HX, Guo YJ, Gao XF, Dong B, Zhang ZQ, Meng X, Fan ZC. Recombinant expression, purification and antimicrobial activity of a novel antimicrobial peptide PaDef in Pichia pastoris. Protein Expr Purif 2017; 130:90-99. [DOI: 10.1016/j.pep.2016.10.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/29/2016] [Accepted: 10/08/2016] [Indexed: 11/24/2022]
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Liu WL, Wang ZZ, Zhao JZ, Hou YY, Wu XX, Li W, Dong B, Tong TT, Guo YJ. [Clinical significance and distribution of BRCA genes mutation in sporadic high grade serous ovarian cancer]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:26-31. [PMID: 28190312 DOI: 10.3760/cma.j.issn.0529-567x.2017.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mutations of BRCA genes in sporadic high grade serous ovarian cancer (HGSOC) and study its clinical significance. Methods: Sixty-eight patients between January 2015 and January 2016 from the Affiliated Cancer Hospital of Zhengzhou University were collected who were based on pathological diagnosis of ovarian cancer and had no reported family history, and all patients firstly hospitalized were untreated in other hospitals before. (1) The BRCA genes were detected by next-generation sequencing (NGS) method. (2) The serum tumor markers included carcinoembryonic antigen (CEA), CA(125), CA(199), and human epididymis protein 4 (HE4) were detected by the chemiluminescence methods, and their correlation was analyzed by Pearson linear correlation. Descriptive statistics and comparisons were performed using two-tailed t-tests, Pearson's chi square test, Fisher's exact tests or logistic regression analysis as appropriate to research the clinicopathologic features associated with BRCA mutations, including age, International Federation of Gynecology and Obstetrics (FIGO) stage, platinum-based chemotherapy sensitivity, distant metastases, serum tumor markers (STM) . Results: (1) Fifteen cases (22%, 15/68) BRCA mutations were identified (BRCA1: 11 cases; BRCA2: 4 cases), and four novel mutations were observed. (2) The levels of CEA, CA(199), and HE4 were lower in BRCA mutations compared to that in control group, while no significant differences were found (P>0.05), but the level of CA(125) was much higher in BRCA mutation group than that in controls (t=-3.536, P=0.003). Further linear regression analysis found that there was a significant linear correlation between CA(125) and HE4 group (r=0.494, P<0.01), and the same correlation as CEA and CA(199) group (r=0.897, P<0.01). (3) Single factor analysis showed that no significant differences were observed in onset age, FIGO stage, distant metastasis, and STM between BRCA(+) and BRCA(-) group (P>0.05), while significant differences were found in CA(125) and sensitivity to platinum-based chemotherapy between the patients with BRCA mutation and wild type (P<0.05). The multiple factors analysis showed that the high level of CA(125) was a independent risk factor of BRCA mutations in sporadic HGSOC (P=0.007). Conclusion: The combination of CA(125) with BRCA have great clinical significance, the mutation of BRCA gene could guild the clinical chemotherapy regiments.
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Affiliation(s)
- W L Liu
- Department of Molecular Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, China
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Shao CT, Lang WZ, Yan X, Guo YJ. Catalytic performance of gallium oxide based-catalysts for the propane dehydrogenation reaction: effects of support and loading amount. RSC Adv 2017. [DOI: 10.1039/c6ra27204e] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ga2O3-based catalysts supported on different supports (ZSM-5, SBA-15, γ-Al2O3 and SiO2) were prepared, and the effects of supports and Ga2O3 content (1–9 wt%) on their catalytic performance for the propane dehydrogenation reaction were discussed.
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Affiliation(s)
- Chun-Tao Shao
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
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Meng WZ, Guo YJ, Liu ZK, Li YF, Wang GZ. [Influencing factors for trauma-induced tibial infection in underground coal mine]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:523-525. [PMID: 27682489 DOI: 10.3760/cma.j.issn.1001-9391.2016.07.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influencing factors for trauma-induced tibial infection in underground coal mine. Methods: A retrospective analysis was performed for the clinical data of 1 090 patients with tibial fracture complicated by bone infection who were injured in underground coal mine and admitted to our hospital from January 1995 to August 2015, including the type of trauma, injured parts, severity, and treatment outcome. The association between risk factors and infection was analyzed. Results: Among the 1 090 patients, 357 had the clinical manifestations of acute and chronic bone infection, 219 had red and swollen legs with heat pain, and 138 experienced skin necrosis, rupture, and discharge of pus. The incidence rates of tibial infection from 1995 to 2001, from 2002 to 2008, and from 2009 to 2015 were 31%, 26.9%, and 20.2%, respectively. The incidence rate of bone infection in the proximal segment of the tibia was significantly higher than that in the middle and distal segments (42.1% vs 18.9%/27.1%, P<0.01) . As for patients with different types of trauma (Gustilo typing) , the patients with type III fracture had a significantly higher incidence rate of bone infection than those with type I/II infection (52.8% vs 21.8%/24.6%, P<0.01) . The incidence rates of bone infection after bone traction, internal fixation with steel plates, fixation with external fixator, and fixation with intramedullary nail were 20.7%, 43.5%, 21.4%, and 26.1%, respectively, suggesting that internal fixation with steel plates had a significantly higher incidence rate of bone infection than other fixation methods (P<0.01) . The multivariate logistic regression analysis showed that the position of tibial fracture and type of fracture were independent risk factors for bone infection. Conclusion: There is a high incidence rate of trauma-induced tibial infection in workers in underground coal mine. The position of tibial fracture and type of fracture are independent risk factors for bone infection. Vacuum sealing drainage and Ilizarov technique can achieve a satisfactory therapeutic effect.
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Affiliation(s)
- W Z Meng
- General Hospital of Pingmeishenma Medical Group of Pingdingshan, Henan Province Pingdingshan 467000, China
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Zhang Y, Cai AL, Ren WD, Guo YJ, Zhang DY, Sun W, Wang Y, Wang L, Qin Y, Huang LP. Identification of fetal cardiac anatomy and hemodynamics: a novel enhanced screening protocol. BMC Pregnancy Childbirth 2016; 16:145. [PMID: 27363399 PMCID: PMC4928259 DOI: 10.1186/s12884-016-0933-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/14/2016] [Indexed: 11/23/2022] Open
Abstract
Background Prenatal cardiac screening is of great importance as it contributes to appropriate neonatal management and helps parents to make a decision regarding their pregnancy. The aim of our study was to evaluate the efficiency of a newly proposed screening protocol in the detection of fetal congenital heart disease (CHD). Methods This was a prospective study. A total of 52 cases of confirmed CHD fetuses and 248 cases of randomly selected normal fetuses were included in the study. Two sonographers with similar experience performed the cardiac screenings under two different protocols independently. The conventional protocol (Protocol A) paid greater attention to the four-chamber view and the outflow tract views. A 6-month training program was provided to sonographers performing scans under the new protocol (Protocol B), which emphasized systematically evaluating fetal cardiac anatomy and hemodynamics. Color Doppler was mandatory and some ultrasonic signs for special cardiac anomalies were also introduced into this protocol. Results Protocol B detected more cardiac anomalies than did Protocol A (96.2 % vs. 61.5 %, P < 0.01). Specifically, Protocol B was superior to Protocol A in detecting cardiac malpositions, abnormal systemic and pulmonary venous connection, right aortic arch, transposition of the great arteries, and congenital corrected transposition of the great arteries. By visualizing flow disturbance and retrograde flow with color Doppler, Protocol B was better than Protocol A in screening valvular associated malformations, such as pulmonary atresia, pulmonary stenosis, tricuspid dysplasia, etc. For the normal fetuses, Protocol B was better than Protocol A in reducing the false-positive detection of septal defects. Conclusions The current study introduces an enhanced protocol for fetal cardiac screening, under which the obstetric screening sonographers systematically identify fetal cardiac anatomy and hemodynamics. A short-term training program makes it possible for the screening sonographers to become familiar with the new protocol, and its value has been confirmed due to improvements made in screening efficiency. Electronic supplementary material The online version of this article (doi:10.1186/s12884-016-0933-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ying Zhang
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Ai-Lu Cai
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Wei-Dong Ren
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Ya-Jun Guo
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Dong-Yu Zhang
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Wei Sun
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Yu Wang
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Lei Wang
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Yue Qin
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China
| | - Li-Ping Huang
- Department of Sonography, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, China.
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Abstract
Lipasin has recently been demonstrated to be involved in lipid metabolism. In this study, two specific primers were used to amplify the lipasin open reading frame from porcine liver tissue. The polymerase chain reaction product was cloned to a pGEM®-T Easy Vector, digested by SalI and NotI, and sequenced. The lipasin fragment was then cloned to a pET21(b) vector and digested by the same restriction enzyme. The recombinant plasmid was transferred to Escherichia coli (BL21), and the lipasin protein was induced with isopropyl-β-D-thiogalactopyranoside. The protein obtained was identified by sodium dodecyl sulfate polyacrylamide gel electrophoresis and western blotting. A pET-lipasin prokaryotic recombinant expression vector was successfully constructed, and a 25.2-kDa protein was obtained. This study provides a basis for further research on the biological function of porcine lipasin.
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Affiliation(s)
- M M Li
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - J Geng
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Y J Guo
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - X Q Jiao
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - W F Lu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - H S Zhu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Y Y Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - G Y Yang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
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Yang TK, Guo YJ, Yang HJ, Chang HC, Huang KH. Adhd symptoms and daytime voiding symptoms in children with primary enuresis: An observational study to evaluate the effectiveness of desmopressin treatment. Urological Science 2015. [DOI: 10.1016/j.urols.2015.06.141] [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: 10/23/2022] Open
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Xu HP, Lang WZ, Zhang X, Guo YJ. Preparation and characterizations of charged PVDF membranes via composite thermally induced phase separation (C-TIPS) method. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.05.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Zhang X, Lang WZ, Xu HP, Yan X, Guo YJ. The effects of hydroxyapatite nano whiskers and its synergism with polyvinylpyrrolidone on poly(vinylidene fluoride) hollow fiber ultrafiltration membranes. RSC Adv 2015. [DOI: 10.1039/c5ra00926j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By introducing hydroxyapatite (HAP) nano whiskers as well as polyvinylpyrrolidone (PVP), poly(vinylidene fluoride) (PVDF)/PVP/HAP hollow fiber membranes were fabricated with the wet spinning method.
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Affiliation(s)
- Xuan Zhang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Hai-Peng Xu
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
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41
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Xia K, Lang WZ, Li PP, Yan X, Guo YJ. Analysis of the catalytic activity induction and deactivation of PtIn/Mg(Al)O catalysts for propane dehydrogenation reaction. RSC Adv 2015. [DOI: 10.1039/c5ra11284b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The catalytic activity induction and deactivation of PtIn/Mg(Al)O catalysts for propane dehydrogenation reaction are experimentally verified.
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Affiliation(s)
- Ke Xia
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Pei-Pei Li
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
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42
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Xu HP, Yu YH, Lang WZ, Yan X, Guo YJ. Hydrophilic modification of polyvinyl chloride hollow fiber membranes by silica with a weak in situ sol–gel method. RSC Adv 2015. [DOI: 10.1039/c4ra15687k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A weak in situ sol–gel method is proposed for the hydrophilic modification of polyvinyl chloride (PVC) hollow fiber membranes by silica, which is generated by the soft hydrolysis of tetraethoxysilane (TEOS) in a deionized water bath.
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Affiliation(s)
- Hai-Peng Xu
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Yan-Hong Yu
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Wan-Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
| | - Ya-Jun Guo
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry and Chemical Engineering
- Shanghai Normal University
- Shanghai 200234
- China
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Zhang X, Lang WZ, Xu HP, Yan X, Guo YJ, Chu LF. Improved performances of PVDF/PFSA/O-MWNTs hollow fiber membranes and the synergism effects of two additives. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.07.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tian B, Tang S, Wang CD, Wang WG, Wu CL, Guo YJ, Guo YP, Zhu ZA. Bactericidal properties and biocompatibility of a gentamicin-loaded Fe 3 O 4 /carbonated hydroxyapatite coating. Colloids Surf B Biointerfaces 2014; 123:403-12. [DOI: 10.1016/j.colsurfb.2014.09.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 08/24/2014] [Accepted: 09/14/2014] [Indexed: 01/30/2023]
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45
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Huang A, Zhang B, Yan W, Wang B, Wei H, Zhang F, Wu L, Fan K, Guo Y. Myeloid-derived suppressor cells regulate immune response in patients with chronic hepatitis B virus infection through PD-1-induced IL-10. J Immunol 2014; 193:5461-9. [PMID: 25344470 DOI: 10.4049/jimmunol.1400849] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although myeloid-derived suppressor cells (MDSCs) are well known for their immunosuppressive function in several pathological conditions, the role of MDSCs in hepatitis B virus infection remains obscure. In this study, we investigated the frequency and function of MDSCs in the peripheral blood and liver of 91 chronic hepatitis B (CHB) patients. A higher percentage of MDSCs, defined as CD14(+)HLA-DR(-/low), was detected in peripheral blood of CHB patients than that of the healthy controls. Moreover, high expression of programmed death 1 (PD-1) and secretion of IL-10 in this population were determined. The frequency of MDSCs was positively correlated with serum viral load, but it was negatively correlated with liver inflammatory injury. These cells were also abundant in liver tissue of CHB patients and were related to necroinflammatory activity. Furthermore, we found that these cells could suppress hepatitis B virus-specific CD8(+) T cell response, including reduced proliferation and IFN-γ production, and inhibit degranulation of CD8(+) T cells, including reduced production of granzyme B and perforin. Importantly, PD-1-induced IL-10 production by MDSCs was responsible for the suppressive activity. To our knowledge, for the first time our study proved that CD14(+)HLA-DR(-/low)PD-1(+) MDSCs in CHB patients contribute to an inadequate immune response against the virus and lead to chronic infection, which represents a potential target for therapeutic intervention.
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Affiliation(s)
- Ang Huang
- Cancer Center, Chinese People's Liberation Army General Hospital, Beijing 100853, People's Republic of China; Department of Liver Diseases, Beijing 302 Hospital, Beijing 100039, People's Republic of China
| | - Bo Zhang
- International Joint Cancer Institute, Second Military Medical University, Shanghai 200433, People's Republic of China; and
| | - WeiWei Yan
- Department of Liver Diseases, Beijing 302 Hospital, Beijing 100039, People's Republic of China
| | - Bo Wang
- Cancer Center, Chinese People's Liberation Army General Hospital, Beijing 100853, People's Republic of China
| | - HuaFeng Wei
- International Joint Cancer Institute, Second Military Medical University, Shanghai 200433, People's Republic of China; and
| | - Fan Zhang
- Cancer Center, Chinese People's Liberation Army General Hospital, Beijing 100853, People's Republic of China
| | - Lang Wu
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, MN 55905
| | - KeXing Fan
- Cancer Center, Chinese People's Liberation Army General Hospital, Beijing 100853, People's Republic of China; International Joint Cancer Institute, Second Military Medical University, Shanghai 200433, People's Republic of China; and
| | - YaJun Guo
- Cancer Center, Chinese People's Liberation Army General Hospital, Beijing 100853, People's Republic of China; International Joint Cancer Institute, Second Military Medical University, Shanghai 200433, People's Republic of China; and
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Zhou XS, Zhao C, Hou R, Zhang J, Kirk KJ, Hutson D, Guo YJ, Hu PA, Peng SM, Zu XT, Fu YQ. Sputtered ZnO film on aluminium foils for flexible ultrasonic transducers. Ultrasonics 2014; 54:1991-1998. [PMID: 24924786 DOI: 10.1016/j.ultras.2014.05.006] [Citation(s) in RCA: 3] [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] [Received: 02/09/2014] [Revised: 05/09/2014] [Accepted: 05/10/2014] [Indexed: 06/03/2023]
Abstract
Nanocrystalline ZnO films with both C-axis vertical grown and inclined angled grown were sputter-deposited onto aluminium foils (50 μm thick) and characterised for using as flexible ultrasonic transducers. As-deposited C-axis grown ZnO films were annealed at different temperatures up to 600 °C to enhance film crystallinity and reduce film stress. The C-axis grown ZnO film on the Al foil were bonded onto steel plates, and the pulse-echo tests verified a good performance (with dominant longitudinal waves) of the ultrasonic transducers made from both as-deposited and post-annealed films. Inclined angled ZnO films on the Al foil glued onto steel plates generated mixed shear and longitudinal waves in the pulse-echo test.
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Affiliation(s)
- X S Zhou
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China; Scottish Universities Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, Scotland, United Kingdom
| | - C Zhao
- Scottish Universities Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, Scotland, United Kingdom
| | - R Hou
- Scottish Universities Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, Scotland, United Kingdom
| | - J Zhang
- Key Lab of Microsystem and Microstructure, Harbin Institute of Technology, Ministry of Education, No. 2 YiKuang Street, Harbin 150080, Heilongjiang, PR China
| | - K J Kirk
- Scottish Universities Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, Scotland, United Kingdom
| | - D Hutson
- Scottish Universities Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, Scotland, United Kingdom
| | - Y J Guo
- School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, PR China
| | - P A Hu
- Key Lab of Microsystem and Microstructure, Harbin Institute of Technology, Ministry of Education, No. 2 YiKuang Street, Harbin 150080, Heilongjiang, PR China
| | - S M Peng
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - X T Zu
- School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, PR China
| | - Y Q Fu
- Scottish Universities Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, Scotland, United Kingdom.
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Tian B, Tang S, Li Y, Long T, Qu XH, Yu DG, Guo YJ, Guo YP, Zhu ZA. Fabrication, characterization, and biocompatibility of ethyl cellulose/carbonated hydroxyapatite composite coatings on Ti6Al4V. J Mater Sci Mater Med 2014; 25:2059-2068. [PMID: 24859285 DOI: 10.1007/s10856-014-5239-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 05/08/2014] [Indexed: 06/03/2023]
Abstract
In order to improve the biocompatibility of metallic implants, bioactive components are often used as coatings so that a real bond with the surrounding bone tissue can be formed. We prepared ethyl cellulose/carbonated hydroxyapatite composite coatings (ECHCs) on Ti6Al4V substrates with carbonated hydroxyapatite coatings (CHACs) without ethyl cellulose as controls. The inorganic constituent on the CHACs and ECHCs is calcium-deficient carbonated hydroxyapatite with a flaky texture and a low degree of crystallinity. The flaky carbonated hydroxyapatite plates aggregate to form macropores with an aperture size of around 0.5-2.0 μm. The presence of ethyl cellulose provides superior morphology, contact angle, and biocompatibility characteristics. In comparison to CHACs, ECHCs exhibit a smoother, crack-free surface because the cracks are filled by ethyl cellulose. Moreover, the contact angle of ECHCs is 37.3°, greater than that of CHACs (13.0°). Surface biocompatibility was investigated by using human bone mesenchymal stem cells (hBMSCs). The attachment, spreadability, viability and proliferation of hBMSCs on ECHCs are superior to those on CHACs. Thus, the crack-free ECHCs have excellent biocompatibility and are appropriate for use as biological implants.
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Affiliation(s)
- Bo Tian
- Shanghai Key Laboratory of Orthopedic Implant, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, 200011, Shanghai, People's Republic of China
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Lu WF, Cao JJ, Guo YJ, Zhong K, Zha GM, Wang LF, Yang GY. Expression of the porcine lipoic acid synthase (LIAS) gene in Escherichia coli. Genet Mol Res 2014; 13:5369-77. [PMID: 25078593 DOI: 10.4238/2014.july.24.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Lipoic acid synthase, which exists primarily in mitochondria, participates in the biosynthesis of intrinsic lipoic acid. The lipoic acid synthase gene in pig is known as LIAS. To further investigate the biological functions of the protein that is encoded by LIAS, we cloned the open read frame of porcine LIAS (GenBank No. JN797612.1) into the expression vector pET-28α(+). The resulting pET-28α(+)-Lias recombinant vector was introduced into the Escherichia coli BL21 (DE3) strain. With induction by isopropyl β-D-1-thiogalactopyranoside, the recombinant E. coli strain can express the target protein that has a molecular weight of 41.58 kDa, which was confirmed by Western blotting.
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Affiliation(s)
- W F Lu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - J J Cao
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Y J Guo
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - K Zhong
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - G M Zha
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - L F Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - G Y Yang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
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49
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Jiang QD, Li HP, Liu FJ, Wang XJ, Guo YJ, Wang LF, Lu WF, Li HJ, Li XP, Wang YY. Effects of lipopolysaccharide on the stearoyl-coenzyme A desaturase mRNA level in bovine primary hepatic cells. Genet Mol Res 2014; 13:2548-54. [PMID: 24615082 DOI: 10.4238/2014.january.24.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to compare the effects of lipopolysaccharide (LPS) on stearoyl-coenzyme A desaturase (SCD) gene expression in mouse primary hepatic cells. To obtain sufficient total RNA, primary hepatic cells were plated on 6-cm diameter-type collagen 1-coated dishes (1 x 106 cells per dish). The test was divided into 6 groups with 6 replications per group. The 6 groups were treated with the following volumes of LPS (0.1 mg/mL): 0, 1, 1.5, 2, 4, and 8 μL. The cells were cultured for 24 h, and the total RNA was extracted from samples. Reverse transcription polymerase chain reaction was used to analyze SCD mRNA levels. With increasing LPS amounts, the SCD mRNA expression first decreased and then increased slightly; the expression was the lowest in the 2-μL LPS condition. The SCD mRNA levels from the 4- and 8-μL LPS conditions were slightly higher than that from the 2-μL LPS condition, but the difference was not significant (P > 0.05). The SCD mRNA level from the 2-μL LPS condition was obviously lower than that from the 0-, 1-, and 1.5-μL LPS condition, and the differences were significant (P < 0.05), and the SCD mRNA levels from the 0-, 1-, and 1.5-μL LPS conditions were not significantly different (P > 0.05). The SCD mRNA levels from the 4- and 8-μL LPS conditions were obviously lower than those from the 0- and 1-μL LPS conditions, and the differences were significant (P < 0.05).
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Affiliation(s)
- Q D Jiang
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - H P Li
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - F J Liu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - X J Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Y J Guo
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - L F Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - W F Lu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - H J Li
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - X P Li
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Y Y Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
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Long T, Guo YP, Tang S, Guo YJ, Zhu ZA. Emulsion fabrication of magnetic mesoporous carbonated hydroxyapatite microspheres for treatment of bone infection. RSC Adv 2014. [DOI: 10.1039/c3ra45896b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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