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Feng L, Dai S, Zhang C, Zhang W, Zhu W, Wang C, He Y, Song W. Ripa-56 protects retinal ganglion cells in glutamate-induced retinal excitotoxic model of glaucoma. Sci Rep 2024; 14:3834. [PMID: 38360971 PMCID: PMC10869350 DOI: 10.1038/s41598-024-54075-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/08/2024] [Indexed: 02/17/2024] Open
Abstract
Glaucoma is a prevalent cause of blindness globally, characterized by the progressive degeneration of retinal ganglion cells (RGCs). Among various factors, glutamate excitotoxicity stands out as a significant contributor of RGCs loss in glaucoma. Our study focused on Ripa-56 and its protective effect against NMDA-induced retinal damage in mice, aiming to delve into the potential underlying mechanism. The R28 cells were categorized into four groups: glutamate (Glu), Glu + Ripa-56, Ripa-56 and Control group. After 24 h of treatment, cell death was assessed by PI / Hoechst staining. Mitochondrial membrane potential changes, apoptosis and reactive oxygen species (ROS) production were analyzed using flow cytometry. The alterations in the expression of RIP-1, p-MLKL, Bcl-2, BAX, Caspase-3, Gpx4 and SLC7A11 were examined using western blot analysis. C57BL/6j mice were randomly divided into NMDA, NMDA + Ripa-56, Ripa-56 and control groups. Histological changes in the retina were evaluated using hematoxylin and eosin (H&E) staining. RGCs survival and the protein expression changes of RIP-1, Caspase-3, Bcl-2, Gpx4 and SLC7A11 were observed using immunofluorescence. Ripa-56 exhibited a significant reduction in the levels of RIP-1, p-MLKL, Caspase-3, and BAX induced by glutamate, while promoting the expression of Bcl-2, Gpx-4, and SLC7A1 in the Ripa-56-treated group. In our study, using an NMDA-induced normal tension glaucoma mice model, we employed immunofluorescence and H&E staining to observe that Ripa-56 treatment effectively ameliorated retinal ganglion cell loss, mitigating the decrease in retinal ganglion cell layer and bipolar cell layer thickness caused by NMDA. In this study, we have observed that Ripa-56 possesses remarkable anti- necroptotic, anti-apoptotic and anti-ferroptosis properties. It demonstrates the ability to combat not only glutamate-induced excitotoxicity in R28 cells, but also NMDA-induced retinal excitotoxicity in mice. Therefore, Ripa-56 could be used as a potential retinal protective agent.
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Affiliation(s)
- Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Shirui Dai
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, 410011, People's Republic of China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Weiming Zhu
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Ye He
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.
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Aharonian F, Benkhali FA, Aschersleben J, Ashkar H, Backes M, Martins VB, Batzofin R, Becherini Y, Berge D, Bernlöhr K, Bi B, Böttcher M, Boisson C, Bolmont J, de Lavergne MDB, Borowska J, Bouyahiaoui M, Breuhaus M, Brose R, Brown AM, Brun F, Bruno B, Bulik T, Burger-Scheidlin C, Caroff S, Casanova S, Cecil R, Celic J, Cerruti M, Chand T, Chandra S, Chen A, Chibueze J, Chibueze O, Cotter G, Dai S, Mbarubucyeye JD, Djannati-Ataï A, Dmytriiev A, Doroshenko V, Egberts K, Einecke S, Ernenwein JP, Filipovic M, Fontaine G, Füßling M, Funk S, Gabici S, Ghafourizadeh S, Giavitto G, Glawion D, Glicenstein JF, Grolleron G, Haerer L, Hinton JA, Hofmann W, Holch TL, Holler M, Horns D, Jamrozy M, Jankowsky F, Jardin-Blicq A, Joshi V, Jung-Richardt I, Kasai E, Katarzyński K, Khatoon R, Khélifi B, Klepser S, Kluźniak W, Komin N, Kosack K, Kostunin D, Kundu A, Lang RG, Le Stum S, Leitl F, Lemière A, Lenain JP, Leuschner F, Lohse T, Luashvili A, Lypova I, Mackey J, Malyshev D, Malyshev D, Marandon V, Marchegiani P, Marcowith A, Martí-Devesa G, Marx R, Mehta A, Mitchell A, Moderski R, Mohrmann L, Montanari A, Moulin E, Murach T, Nakashima K, de Naurois M, Niemiec J, Noel AP, Ohm S, Olivera-Nieto L, de Ona Wilhelmi E, Ostrowski M, Panny S, Panter M, Parsons RD, Peron G, Prokhorov DA, Pühlhofer G, Punch M, Quirrenbach A, Reichherzer P, Reimer A, Reimer O, Ren H, Renaud M, Reville B, Rieger F, Rowell G, Rudak B, Ricarte HR, Ruiz-Velasco E, Sahakian V, Salzmann H, Santangelo A, Sasaki M, Schäfer J, Schüssler F, Schwanke U, Shapopi JNS, Sol H, Specovius A, Spencer S, Stawarz L, Steenkamp R, Steinmassl S, Steppa C, Streil K, Sushch I, Suzuki H, Takahashi T, Tanaka T, Taylor AM, Terrier R, Tsirou M, Tsuji N, Unbehaun T, van Eldik C, Vecchi M, Veh J, Venter C, Vink J, Wach T, Wagner SJ, Werner F, White R, Wierzcholska A, Wong YW, Zacharias M, Zargaryan D, Zdziarski AA, Zech A, Zouari S, Żywucka N. Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433. Science 2024; 383:402-406. [PMID: 38271522 DOI: 10.1126/science.adi2048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 12/04/2023] [Indexed: 01/27/2024]
Abstract
SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These observations trace the energetic electron population and indicate that inverse Compton scattering is the emission mechanism of the gamma rays. Our modeling of the energy-dependent gamma-ray morphology constrains the location of particle acceleration and requires an abrupt deceleration of the jet flow. We infer the presence of shocks on either side of the binary system, at distances of 25 to 30 parsecs, and that self-collimation of the precessing jets forms the shocks, which then efficiently accelerate electrons.
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Affiliation(s)
- F Aharonian
- Dublin Institute for Advanced Studies, Dublin D02 XF86, Ireland
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - F Ait Benkhali
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - J Aschersleben
- Kapteyn Astronomical Institute, University of Groningen, Groningen 9747 AD, Netherlands
| | - H Ashkar
- Laboratoire Leprince-Ringuet, École Polytechnique, Centre national de la recherche scientifique, Institut Polytechnique de Paris, Palaiseau F-91128, France
| | - M Backes
- Department of Physics, University of Namibia, Windhoek 10005, Namibia
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | | | - R Batzofin
- Institut für Physik und Astronomie, Universität Potsdam, Potsdam 14476, Germany
| | - Y Becherini
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
- Department of Physics and Electrical Engineering, Linnaeus University, Växjö 351 95, Sweden
| | - D Berge
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, Berlin D-12489, Germany
| | - K Bernlöhr
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - B Bi
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - M Böttcher
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - C Boisson
- Laboratoire Univers et Théories, Observatoire de Paris, Université Paris Sciences et Lettres, CNRS, Université de Paris, Meudon 92190, France
| | - J Bolmont
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Université Paris Diderot, Université Paris Cité, Institut national de physique nucléaire et de physique des particules, Centre national de la recherche scientifique, Paris F-75252, France
| | - M de Bony de Lavergne
- Laboratoire d'Annecy de Physique des Particules, Centre national de la recherche scientifique, Institut national de physique nucléaire et de physique des particules, Université Savoie Mont Blanc, Annecy 74000, France
| | - J Borowska
- Institut für Physik, Humboldt-Universität zu Berlin, Berlin D-12489, Germany
| | - M Bouyahiaoui
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - M Breuhaus
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - R Brose
- Dublin Institute for Advanced Studies, Dublin D02 XF86, Ireland
| | - A M Brown
- Department of Physics, University of Oxford, Oxford OX1 3RH, UK
| | - F Brun
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - B Bruno
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - T Bulik
- Astronomical Observatory, The University of Warsaw, Warsaw 00-478, Poland
| | | | - S Caroff
- Laboratoire d'Annecy de Physique des Particules, Centre national de la recherche scientifique, Institut national de physique nucléaire et de physique des particules, Université Savoie Mont Blanc, Annecy 74000, France
| | - S Casanova
- Instytut Fizyki J[Formula: see text]drowej, Polska Akademia Nauk, Kraków 31-342, Poland
| | - R Cecil
- Institut für Experimentalphysik, Universität Hamburg, Hamburg D-22761, Germany
| | - J Celic
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - M Cerruti
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - T Chand
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - S Chandra
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - A Chen
- School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - J Chibueze
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - O Chibueze
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - G Cotter
- Department of Physics, University of Oxford, Oxford OX1 3RH, UK
| | - S Dai
- School of Science, Western Sydney University, Penrith NSW 2751, Australia
| | | | - A Djannati-Ataï
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - A Dmytriiev
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - V Doroshenko
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - K Egberts
- Institut für Physik und Astronomie, Universität Potsdam, Potsdam 14476, Germany
| | - S Einecke
- School of Physical Sciences, University of Adelaide, Adelaide 5005, Australia
| | - J-P Ernenwein
- Centre de Physique des Particules de Marseille, Aix Marseille Université, Centre national de la recherche scientifique, Institut national de physique nucléaire et de physique des particules, Marseille 13288, France
| | - M Filipovic
- School of Science, Western Sydney University, Penrith NSW 2751, Australia
| | - G Fontaine
- Laboratoire Leprince-Ringuet, École Polytechnique, Centre national de la recherche scientifique, Institut Polytechnique de Paris, Palaiseau F-91128, France
| | - M Füßling
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - S Funk
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - S Gabici
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - S Ghafourizadeh
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - G Giavitto
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - D Glawion
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - J-F Glicenstein
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - G Grolleron
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Université Paris Diderot, Université Paris Cité, Institut national de physique nucléaire et de physique des particules, Centre national de la recherche scientifique, Paris F-75252, France
| | - L Haerer
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - J A Hinton
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - W Hofmann
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - T L Holch
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - M Holler
- Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, Innsbruck A-6020, Austria
| | - D Horns
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - M Jamrozy
- Obserwatorium Astronomiczne, Uniwersytet Jagielloński, Kraków 30-244, Poland
| | - F Jankowsky
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - A Jardin-Blicq
- Laboratoir de de Physique des deux Infinis, Université Bordeaux, CNRS, Gradignan F-33170, France
| | - V Joshi
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - I Jung-Richardt
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - E Kasai
- Department of Physics, University of Namibia, Windhoek 10005, Namibia
| | - K Katarzyński
- Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Torun 87-100, Poland
| | - R Khatoon
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - B Khélifi
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - S Klepser
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - W Kluźniak
- Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw 00-716, Poland
| | - Nu Komin
- School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - K Kosack
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - D Kostunin
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - A Kundu
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - R G Lang
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - S Le Stum
- Centre de Physique des Particules de Marseille, Aix Marseille Université, Centre national de la recherche scientifique, Institut national de physique nucléaire et de physique des particules, Marseille 13288, France
| | - F Leitl
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - A Lemière
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - J-P Lenain
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Université Paris Diderot, Université Paris Cité, Institut national de physique nucléaire et de physique des particules, Centre national de la recherche scientifique, Paris F-75252, France
| | - F Leuschner
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - T Lohse
- Institut für Physik, Humboldt-Universität zu Berlin, Berlin D-12489, Germany
| | - A Luashvili
- Laboratoire Univers et Théories, Observatoire de Paris, Université Paris Sciences et Lettres, CNRS, Université de Paris, Meudon 92190, France
| | - I Lypova
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - J Mackey
- Dublin Institute for Advanced Studies, Dublin D02 XF86, Ireland
| | - D Malyshev
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - D Malyshev
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - V Marandon
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - P Marchegiani
- School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - A Marcowith
- Laboratoire Univers et Particules de Montpellier, Université Montpellier, Centre national de la recherche scientifique, Institut national de physique nucléaire et de physique des particules, Montpellier F-34095, France
| | - G Martí-Devesa
- Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, Innsbruck A-6020, Austria
| | - R Marx
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - A Mehta
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - A Mitchell
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - R Moderski
- Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw 00-716, Poland
| | - L Mohrmann
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - A Montanari
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - E Moulin
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - T Murach
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - K Nakashima
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - M de Naurois
- Laboratoire Leprince-Ringuet, École Polytechnique, Centre national de la recherche scientifique, Institut Polytechnique de Paris, Palaiseau F-91128, France
| | - J Niemiec
- Instytut Fizyki J[Formula: see text]drowej, Polska Akademia Nauk, Kraków 31-342, Poland
| | - A Priyana Noel
- Obserwatorium Astronomiczne, Uniwersytet Jagielloński, Kraków 30-244, Poland
| | - S Ohm
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - L Olivera-Nieto
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | | | - M Ostrowski
- Obserwatorium Astronomiczne, Uniwersytet Jagielloński, Kraków 30-244, Poland
| | - S Panny
- Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, Innsbruck A-6020, Austria
| | - M Panter
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - R D Parsons
- Institut für Physik, Humboldt-Universität zu Berlin, Berlin D-12489, Germany
| | - G Peron
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - D A Prokhorov
- Gravitation and Astroparticle Physics Amsterdam, Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam 1098 XH, Netherlands
| | - G Pühlhofer
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - M Punch
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - A Quirrenbach
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - P Reichherzer
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - A Reimer
- Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, Innsbruck A-6020, Austria
| | - O Reimer
- Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, Innsbruck A-6020, Austria
| | - H Ren
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - M Renaud
- Laboratoire Univers et Particules de Montpellier, Université Montpellier, Centre national de la recherche scientifique, Institut national de physique nucléaire et de physique des particules, Montpellier F-34095, France
| | - B Reville
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - F Rieger
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - G Rowell
- School of Physical Sciences, University of Adelaide, Adelaide 5005, Australia
| | - B Rudak
- Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw 00-716, Poland
| | - H Rueda Ricarte
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - E Ruiz-Velasco
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - V Sahakian
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - H Salzmann
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - A Santangelo
- Institut für Astronomie und Astrophysik, Universität Tübingen, Tübingen D-72076, Germany
| | - M Sasaki
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - J Schäfer
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - F Schüssler
- Institute for Research on the Fundamental Laws of the Universe, Commissariat à l'énergie atomique et aux énergies alternatives, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
| | - U Schwanke
- Institut für Physik, Humboldt-Universität zu Berlin, Berlin D-12489, Germany
| | - J N S Shapopi
- Department of Physics, University of Namibia, Windhoek 10005, Namibia
| | - H Sol
- Laboratoire Univers et Théories, Observatoire de Paris, Université Paris Sciences et Lettres, CNRS, Université de Paris, Meudon 92190, France
| | - A Specovius
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - S Spencer
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - L Stawarz
- Obserwatorium Astronomiczne, Uniwersytet Jagielloński, Kraków 30-244, Poland
| | - R Steenkamp
- Department of Physics, University of Namibia, Windhoek 10005, Namibia
| | - S Steinmassl
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - C Steppa
- Institut für Physik und Astronomie, Universität Potsdam, Potsdam 14476, Germany
| | - K Streil
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - I Sushch
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - H Suzuki
- Department of Physics, Konan University, Higashinada-ku Kobe 658-8501, Japan, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa Chiba 277-8583, Japan
| | - T Tanaka
- Department of Physics, Konan University, Higashinada-ku Kobe 658-8501, Japan, Japan
| | - A M Taylor
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - R Terrier
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - M Tsirou
- Deutsches Elektronen-Synchrotron, Zeuthen D-15738, Germany
| | - N Tsuji
- The Institute of Physical and Chemical Research (RIKEN), Wako Saitama 351-0198, Japan
| | - T Unbehaun
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - C van Eldik
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - M Vecchi
- Kapteyn Astronomical Institute, University of Groningen, Groningen 9747 AD, Netherlands
| | - J Veh
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - C Venter
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - J Vink
- Gravitation and Astroparticle Physics Amsterdam, Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam 1098 XH, Netherlands
| | - T Wach
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - S J Wagner
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
| | - F Werner
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - R White
- Max-Planck-Institut für Kernphysik, Heidelberg D-69117, Germany
| | - A Wierzcholska
- Instytut Fizyki J[Formula: see text]drowej, Polska Akademia Nauk, Kraków 31-342, Poland
| | - Yu Wun Wong
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen D-91058, Germany
| | - M Zacharias
- Landessternwarte, Universität Heidelberg, Heidelberg D-69117, Germany
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
| | - D Zargaryan
- Dublin Institute for Advanced Studies, Dublin D02 XF86, Ireland
| | - A A Zdziarski
- Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw 00-716, Poland
| | - A Zech
- Dublin Institute for Advanced Studies, Dublin D02 XF86, Ireland
- Kapteyn Astronomical Institute, University of Groningen, Groningen 9747 AD, Netherlands
| | - S Zouari
- Laboratoire Astroparticule et Cosmologie, Université de Paris, Centre national de la recherche scientifique, Paris F-75013, France
| | - N Żywucka
- Centre for Space Research, North-West University, Potchefstroom 2520, South Africa
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Liu G, Fan Q, Zhao L, Li X, Lu X, Dai S, Zhang S, Yang K, Ding X. A Novel Planning and Delivery Technology: Dose, Dose Rate and Linear Energy Transfer (LET) Optimization Based on Spot-Scanning Proton Arc Therapy FLASH (SPLASH LET). Int J Radiat Oncol Biol Phys 2023; 117:S37. [PMID: 37784485 DOI: 10.1016/j.ijrobp.2023.06.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To achieve a high conformal dose with Linear Energy Transfer (LET) optimized FLASH proton therapy, we introduced a new planning and delivery technique concept, the voxel-wised optimization of LET distribution and dose rate based on scanning arc therapy (SPLASHLET) MATERIALS/METHODS: The algorithm optimizes (1) the clinical dose-volume constraint based on dose distribution and (2) the clinical LET-volume constraint based on LET distribution using Alternating Direction Method of Multipliers (ADMM) with Limited-memory BFGS solver by minimizing the monitor unit (MU) constraint on spot weight and (3) the effective dose-average dose rate by minimizing the accelerator's beam current sequentially. Such optimization framework enables the high dose conformal dynamic arc therapy with the capability of LET painting with voxel-based FLASH dose rate in an open-source proton planning platform (MatRad, Department of Medical Physics in Radiation Oncology, German Cancer Research Center-DKFZ). It aiming to minimize the overall cost function value combined with plan quality and voxel-based LET and dose rate constraints. Three representative cases (brain, liver and prostate cancer) were used for testing purposes. Dose-volume histogram (DVH), LET volume histogram (LVH) dose rate volume histogram (DRVH) and dose rate map were assessed compared to the original SPArc plan (SPArcoriginal). RESULTS SPLASHLET plan could offer comparable plan quality compared to SPArcoriginal plan. The DRVH results indicated that SPArcoriginal could not achieve FLASH using the clinic beam current configuration, while SPLASHLET could significantly not only improve V40Gy/s in target and region of interest (ROI) but also improve the mean LET in the target and reduce the high LET in organ at risk (OAR) in comparison with SPArcoriginal (Table 1). CONCLUSION SPLASHLET offers the first LET painting with voxel-based ultra-dose-rate and high-dose conformity treatment using proton beam therapy. Such technique has the potential to take full vantage of LET painting, FLASH and SPArc.
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Affiliation(s)
- G Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Radiation Oncology, Beaumont Health System, Royal Oak, MI
| | - Q Fan
- School of Mathematics and Statistics, Wuhan University, Wuhan, China
| | - L Zhao
- Department of Radiation Oncology, Corewell Health William Beaumont University Hospital, Royal Oak, MI
| | - X Li
- Department of Radiation Oncology, Beaumont Health System, Royal Oak, MI
| | - X Lu
- School of Mathematics and Statistics, Wuhan University, Wuhan, China
| | - S Dai
- School of Mathematics and Statistics, Wuhan University, Wuhan, China
| | - S Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - K Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Ding
- Department of Radiation Oncology, Beaumont Health, Royal Oak, MI
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Chen M, Zhong Y, Harris E, Li J, Zheng Z, Chen H, Wu JS, Jarillo-Herrero P, Ma Q, Edgar JH, Lin X, Dai S. Van der Waals isotope heterostructures for engineering phonon polariton dispersions. Nat Commun 2023; 14:4782. [PMID: 37553366 PMCID: PMC10409777 DOI: 10.1038/s41467-023-40449-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023] Open
Abstract
Element isotopes are characterized by distinct atomic masses and nuclear spins, which can significantly influence material properties. Notably, however, isotopes in natural materials are homogenously distributed in space. Here, we propose a method to configure material properties by repositioning isotopes in engineered van der Waals (vdW) isotopic heterostructures. We showcase the properties of hexagonal boron nitride (hBN) isotopic heterostructures in engineering confined photon-lattice waves-hyperbolic phonon polaritons. By varying the composition, stacking order, and thicknesses of h10BN and h11BN building blocks, hyperbolic phonon polaritons can be engineered into a variety of energy-momentum dispersions. These confined and tailored polaritons are promising for various nanophotonic and thermal functionalities. Due to the universality and importance of isotopes, our vdW isotope heterostructuring method can be applied to engineer the properties of a broad range of materials.
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Affiliation(s)
- M Chen
- Materials Research and Education Center, Department of Mechanical Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Y Zhong
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, Zhejiang University, Hangzhou, 310027, China
| | - E Harris
- Department of Physics, Boston College, Chestnut Hill, Massachusetts, MA, 02467, USA
| | - J Li
- Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Z Zheng
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts, MA, 02139, USA
| | - H Chen
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, Zhejiang University, Hangzhou, 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400, China
| | - J-S Wu
- Department of Photonics and Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - P Jarillo-Herrero
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts, MA, 02139, USA
| | - Q Ma
- Department of Physics, Boston College, Chestnut Hill, Massachusetts, MA, 02467, USA
| | - J H Edgar
- Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - X Lin
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, Zhejiang University, Hangzhou, 310027, China
| | - S Dai
- Materials Research and Education Center, Department of Mechanical Engineering, Auburn University, Auburn, AL, 36849, USA.
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Lafitte R, Diaine F, Dai S, Carré O, Dupierrix E, Jolly C, Piscicelli C, Pérennou D. Clinimetric properties of relevant criteria for assessing writing and drawing orientation after right hemisphere stroke. J Neurosci Methods 2023:109900. [PMID: 37295749 DOI: 10.1016/j.jneumeth.2023.109900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/25/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Writing and drawing orientation is rarely assessed in clinical routine, although it might have a potential value in detecting impaired verticality perception after right hemispheric stroke (RHS). Assessment tools and criteria must be conceived and validated. We therefore explored the clinimetric properties of a set of quantitative writing and drawing orientation criteria, their ranges of normality, and their tilt prevalence in RHS individuals. NEW METHODS We asked 69 individuals with subacute RHS and 64 matched healthy controls to write three lines and to copy the Gainotti Figure (house and trees). We determined six criteria referring to the orientation of writing and drawing main axes: for writing, the line and margin orientations, and for drawing, the tree, groundline, wall, and roofline orientations. Orientations were measured by using an electronic protractor from specific landmarks positioned by independent evaluators. RESULTS The set of criteria fulfilling all clinimetric properties (feasibility, measurability, reliability) comprised the line orientation of the writing and the wall and roofline orientations of the drawing. Writing and drawing tilts were frequent after RHS (about 30% by criterion). COMPARISON WITH EXISTING METHODS So far, graphomotor orientation was mostly tested qualitatively and could not be objectively appreciated in absence of validated tools and criteria, and without ranges of normality. Writing and drawing tilts may now be assessed both in routine clinical practice and research. CONCLUSIONS Our study paves the way for investigating the clinical determinants of graphomotor tilts, including impaired verticality perception, to better understand their underlying mechanisms.
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Affiliation(s)
- R Lafitte
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - F Diaine
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - S Dai
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - O Carré
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - E Dupierrix
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - C Jolly
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - C Piscicelli
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
| | - D Pérennou
- Univ. Grenoble Alpes, UMR CNRS 5105 Neuropsychology and NeuroCognition; CHU Grenoble Alpes, Dept of NeuroRehabilitation South Hospital, Grenoble, France.
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He Y, Wang C, Zhou X, Peng J, Zhang X, Wang Y, Rui Y, Zhang C, Zhang W, Feng L, Dai S, Xia X, Song W. Comparison of clinical outcomes between cystotome-assisted prechop phacoemulsification surgery and femtosecond laser-assisted cataract surgery for hard nucleus cataracts. Eye (Lond) 2023; 37:235-241. [PMID: 35091707 PMCID: PMC9873648 DOI: 10.1038/s41433-021-01900-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 10/11/2021] [Accepted: 12/09/2021] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND/OBJECTIVES To compare the safety and efficacy of cystotome-assisted prechop phacoemulsification surgery (CAPPS) and femtosecond laser-assisted cataract surgery (FLACS) in patients with hard nucleus cataract. SUBJECTS/METHODS Ninety-six eyes of 64 patients with grade IV hard nucleus cataract were assigned to 1 of the 2 groups (49 CAPPS and 47 FLACS). Follow-up visits were performed at 1 day, 1 week, 1 month, 3 months, 6 months, and 1 year, and the outcome measures comprised ultrasound power, effective phacoemulsification time (EPT), corrected distance visual acuity (CDVA), endothelial cell density (ECD), corneal endothelium cell loss rate (ECL), central corneal thickness (CCT), and intraoperative and postoperative complications. RESULTS The ultrasound power and EPT were lower in the CAPPS group (p = 0.03 and <0.0001, respectively). Patients in both groups gained better CDVA postoperatively. The ECD value decreased at each follow-up visit and did not return to the preoperative level; FLACS resulted in greater endothelial cell loss compared to CAPPS. CCT increased immediately after the surgery and decreased thereafter. The mean CCT value returned to the preoperative level 3 months postoperatively in the CAPPS group, while in the FLACS group, CCT value took 6 months to return to the preoperative level. Miosis was more likely to occur in the FLACS group. CONCLUSIONS Due to its efficacy and cost-effectiveness, CAPPS is worth promoting and applying to clinical work in the future.
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Affiliation(s)
- Ye He
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Xuezhi Zhou
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Jingjie Peng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Xuan Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Yujue Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Yuhua Rui
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Shirui Dai
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China
- Eye Center of Xiangya Hospital, Central South University, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Xiaobo Xia
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China.
- Eye Center of Xiangya Hospital, Central South University, Hunan, China.
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China.
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Hunan, China.
- Eye Center of Xiangya Hospital, Central South University, Hunan, China.
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China.
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Gong Y, Zhang L, Liu S, Zhang H, Peng L, Li H, Dai S, Chen B. Continuous voriconazole lavage in managing moderate and severe fungal keratitis: a randomized controlled trial. Graefes Arch Clin Exp Ophthalmol 2023; 261:1639-1649. [PMID: 36642766 DOI: 10.1007/s00417-022-05969-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/30/2022] [Accepted: 12/28/2022] [Indexed: 01/17/2023] Open
Abstract
PURPOSE To assess the effectiveness and safety of continuous lavage with 1% voriconazole (CL) for moderate and severe fungal keratitis. METHODS Thirty-one patients were randomized to receive topical eye drops either alone (T) or combined with continuous 1% voriconazole lavage (CL-T). The primary outcome was the cure rate at 3 months. The secondary outcomes were the 6-day efficacy, 3-day infiltration size and depth, hypopyon height, central corneal thickness (CCT), epithelial defect size, and subject feelings and clinical signs assessment scores. RESULTS At 3 months, the cure rate was comparable between the groups in patients with moderate fungal keratitis (66.7% vs. 62.5%, P = 0.60). However, among severe cases, 4 cases (44.4%) in the CL-T group healed successfully, while none in the T group; this difference was not significant (P = 0.08), although it was very close to 0.05. This may be related to the small sample size. After 6 days, the percentage of patients with "worsened" ulcers in the CL-T group was lower than that in the T group (0% vs. 31%, P = 0.043). The infiltration size, infiltration depth, and hypopyon height in the CL-T group were smaller than those in the T group after 3 days (all P < 0.05). There was no difference in CCT, epithelial defect size, subject feelings scores, or clinical signs scores between groups. CONCLUSION These outcomes suggest that CL is an effective and safe adjuvant method for controlling the progression of moderate and severe fungal keratitis. TRIAL REGISTRATION NUMBER ChiCTR2100050565.
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Affiliation(s)
- Yujia Gong
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Liwei Zhang
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Shaohua Liu
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Hongyan Zhang
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Li Peng
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Haoyu Li
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Shirui Dai
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China
| | - Baihua Chen
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China. .,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, 410011, China.
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Peng H, Han W, Ma B, Dai S, Long J, Zhou S, Li H, Chen B. Autophagy and senescence of rat retinal precursor cells under high glucose. Front Endocrinol (Lausanne) 2023; 13:1047642. [PMID: 36686430 PMCID: PMC9846177 DOI: 10.3389/fendo.2022.1047642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 12/05/2022] [Indexed: 01/05/2023] Open
Abstract
Backgrounds Diabetic retinopathy (DR) is a common diabetic ocular disease characterized by retinal ganglion cell (RGC) changes. An abnormal environment, hyperglycemia, may progressively alter the structure and function of RGCs, which is a primary pathological feature of retinal neurodegeneration in DR. Accumulated studies confirmed autophagy and senescence play a vital role in DR; however, the underlying mechanisms need to be clarified. Methods This study included the microarray expression profiling dataset GSE60436 from Gene Expression Omnibus (GEO) to conduct the bioinformatics analysis. The R software was used to identify autophagy-related genes (ARGs) that were differentially expressed in fibrovascular membranes (FVMs) and normal retinas. Co-expression and tissue-specific expression were elicited for the filtered genes. The genes were then analyzed by ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis and Gene Set Enrichment Analysis (GSEA). R28 cells were cultured with high glucose, detected by reverse transcription-quantitative (RT-qPCR) and stained by apoptosis kit. Results In the retina, 31 differentially expressed ARGs (24 up-regulated genes) were discovered and enriched. The enrichment results revealed that differentially expressed ARGs were significantly enriched in autophagy, apoptosis, aging, and neural function. Four hub genes (i.e., TP53, CASP1, CCL2, and CASP1) were significantly up-regulated. Upregulation of cellular autophagy and apoptosis level was detected in the hyperglycemia model in vitro. Conclusions Our results provide evidence for the autophagy and cellular senescence mechanisms involved in retinal hyperglycemia injury, and the protective function of autophagy is limited. Further study may favour understanding the disease progression and neuroprotection of DR.
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Affiliation(s)
- Hanhan Peng
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Wentao Han
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Benteng Ma
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Shirui Dai
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Jianfeng Long
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Shu Zhou
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Haoyu Li
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
| | - Baihua Chen
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, China
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Tang L, Leung P, Mohamed M, Xu Q, Dai S, Zhu X, Flox C, Shah A, Liao Q. Capital cost evaluation of conventional and emerging redox flow batteries for grid storage applications. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Niu CH, Aggarwal K, Li D, Zhang X, Chatterjee S, Tsai CW, Yu W, Law CJ, Burke-Spolaor S, Cordes JM, Zhang YK, Ocker SK, Yao JM, Wang P, Feng Y, Niino Y, Bochenek C, Cruces M, Connor L, Jiang JA, Dai S, Luo R, Li GD, Miao CC, Niu JR, Anna-Thomas R, Sydnor J, Stern D, Wang WY, Yuan M, Yue YL, Zhou DJ, Yan Z, Zhu WW, Zhang B. A repeating fast radio burst associated with a persistent radio source. Nature 2022; 606:873-877. [PMID: 35676486 PMCID: PMC9242862 DOI: 10.1038/s41586-022-04755-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 04/11/2022] [Indexed: 12/15/2022]
Abstract
The dispersive sweep of fast radio bursts (FRBs) has been used to probe the ionized baryon content of the intergalactic medium1, which is assumed to dominate the total extragalactic dispersion. Although the host-galaxy contributions to the dispersion measure appear to be small for most FRBs2, in at least one case there is evidence for an extreme magneto-ionic local environment3,4 and a compact persistent radio source5. Here we report the detection and localization of the repeating FRB 20190520B, which is co-located with a compact, persistent radio source and associated with a dwarf host galaxy of high specific-star-formation rate at a redshift of 0.241 ± 0.001. The estimated host-galaxy dispersion measure of approximately [Formula: see text] parsecs per cubic centimetre, which is nearly an order of magnitude higher than the average of FRB host galaxies2,6, far exceeds the dispersion-measure contribution of the intergalactic medium. Caution is thus warranted in inferring redshifts for FRBs without accurate host-galaxy identifications.
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Affiliation(s)
- C-H Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
| | - K Aggarwal
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA
- Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - D Li
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China.
- University of Chinese Academy of Sciences, Beijing, China.
- Research Center for Intelligent Computing Platforms, Zhejiang Laboratory, Hangzhou, China.
| | - X Zhang
- University of Chinese Academy of Sciences, Beijing, China
- Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China
| | - S Chatterjee
- Cornell Center for Astrophysics and Planetary Science, and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - C-W Tsai
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
| | - W Yu
- Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China.
| | - C J Law
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA.
- Owens Valley Radio Observatory, California Institute of Technology, Big Pine, CA, USA.
| | - S Burke-Spolaor
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA
- Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
- Canadian Institute for Advanced Research, Toronto, Ontario, Canada
| | - J M Cordes
- Cornell Center for Astrophysics and Planetary Science, and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - Y-K Zhang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - S K Ocker
- Cornell Center for Astrophysics and Planetary Science, and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - J-M Yao
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, China
| | - P Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
| | - Y Feng
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Research Center for Intelligent Computing Platforms, Zhejiang Laboratory, Hangzhou, China
| | - Y Niino
- Institute of Astronomy, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- Research Center for the Early Universe, The University of Tokyo, Tokyo, Japan
| | - C Bochenek
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - M Cruces
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - L Connor
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - J-A Jiang
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Japan
| | - S Dai
- CSIRO Space and Astronomy, Epping, New South Wales, Australia
- School of Science, Western Sydney University, Penrith South DC, New South Wales, Australia
| | - R Luo
- CSIRO Space and Astronomy, Epping, New South Wales, Australia
| | - G-D Li
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - C-C Miao
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - J-R Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - R Anna-Thomas
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA
- Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - J Sydnor
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA
- Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - D Stern
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - W-Y Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- Department of Astronomy, School of Physics, Peking University, Beijing, China
| | - M Yuan
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Y-L Yue
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
| | - D-J Zhou
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Z Yan
- Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China
| | - W-W Zhu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Las Vegas, NV, USA
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11
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Dai S, Wang C, Zhang C, Feng L, Zhang W, Zhou X, He Y, Xia X, Chen B, Song W. PTB: Not just a polypyrimidine tract-binding protein. J Cell Physiol 2022; 237:2357-2373. [PMID: 35288937 DOI: 10.1002/jcp.30716] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 01/21/2023]
Abstract
Polypyrimidine tract-binding protein (PTB), as a member of the heterogeneous nuclear ribonucleoprotein family, functions by rapidly shuttling between the nucleus and the cytoplasm. PTB is involved in the alternative splicing of pre-messenger RNA (mRNA) and almost all steps of mRNA metabolism. PTB regulation is organ-specific; brain- or muscle-specific microRNAs and long noncoding RNAs partially contribute to regulating PTB, thereby modulating many physiological and pathological processes, such as embryonic development, cell development, spermatogenesis, and neuron growth and differentiation. Previous studies have shown that PTB knockout can inhibit tumorigenesis and development. The knockout of PTB in glial cells can be reprogrammed into functional neurons, which shows great promise in the field of nerve regeneration but is controversial.
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Affiliation(s)
- Shirui Dai
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China.,Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, P. R. China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Xuezhi Zhou
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Ye He
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Xiaobo Xia
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Baihua Chen
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, P. R. China
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
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12
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Huang Y, Guo FZ, Dai S, Hu HY, Fu SY, Liu JW, Luo F. Clinical insights into cisplatin-induced arrhythmia in a patient with locally advanced non-small cell lung cancer: a case report. Eur Rev Med Pharmacol Sci 2022; 26:6-10. [PMID: 35049014 DOI: 10.26355/eurrev_202201_27741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Cardiotoxicity is a common adverse effect of many antineoplastic agents, including anthracyclines and paclitaxel. However, it has not been defined as a causal side effect of cisplatin. Here we report on a patient with locally advanced non-small cell lung cancer who developed a cardiotoxic event induced by cisplatin that manifested primarily as arrhythmia. MATERIALS AND METHODS Intensive cardiac monitoring through electrocardiogram was performed to estimate the severity degree and clinical condition of arrhythmia. RESULTS The frequency and severity of the arrhythmia had a strong temporal relationship with the administration of cisplatin, that made it likely that cisplatin was responsible for the cardiotoxicity observed. CONCLUSIONS In the present case report, we discuss the potential factors that may provide pivotal contributions to the patient's susceptibility to cardiotoxicity and review the published studies regarding the cardiotoxic influence of cisplatin. We also outline the critical points that oncologists should be aware of when dealing with such high-risk patients.
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Affiliation(s)
- Y Huang
- Lung Cancer Center, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
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13
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Li D, Wang P, Zhu WW, Zhang B, Zhang XX, Duan R, Zhang YK, Feng Y, Tang NY, Chatterjee S, Cordes JM, Cruces M, Dai S, Gajjar V, Hobbs G, Jin C, Kramer M, Lorimer DR, Miao CC, Niu CH, Niu JR, Pan ZC, Qian L, Spitler L, Werthimer D, Zhang GQ, Wang FY, Xie XY, Yue YL, Zhang L, Zhi QJ, Zhu Y. Author Correction: A bimodal burst energy distribution of a repeating fast radio burst source. Nature 2021; 601:E1. [PMID: 34912125 DOI: 10.1038/s41586-021-04178-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D Li
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China. .,University of Chinese Academy of Sciences, Beijing, China.
| | - P Wang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - W W Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Las Vegas, NV, USA.
| | - X X Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - R Duan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - Y K Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Y Feng
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - N Y Tang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,Department of Physics, Anhui Normal University, Wuhu, China
| | - S Chatterjee
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - J M Cordes
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - M Cruces
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - S Dai
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia.,Western Sydney University, Penrith, New South Wales, Australia
| | - V Gajjar
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Hobbs
- CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - C Jin
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - M Kramer
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D R Lorimer
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - C C Miao
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - C H Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - J R Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Z C Pan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Qian
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Spitler
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D Werthimer
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, China
| | - X Y Xie
- Guizhou Normal University, Guiyang, China
| | - Y L Yue
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,School of Physics and Technology, Wuhan University, Wuhan, China
| | - Q J Zhi
- Guizhou Normal University, Guiyang, China.,Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang, China
| | - Y Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
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14
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Shu Y, Liu Y, Cui J, Chen X, Miao L, Li Y, Zhu X, He J, Chen P, Dai S. P40.01 Maintenance Anlotinib After Induction Therapy With Platinum-Based Chemotherapy for Advanced Non-Small-Cell Lung Cancer: A Phase 2 Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Li D, Wang P, Zhu WW, Zhang B, Zhang XX, Duan R, Zhang YK, Feng Y, Tang NY, Chatterjee S, Cordes JM, Cruces M, Dai S, Gajjar V, Hobbs G, Jin C, Kramer M, Lorimer DR, Miao CC, Niu CH, Niu JR, Pan ZC, Qian L, Spitler L, Werthimer D, Zhang GQ, Wang FY, Xie XY, Yue YL, Zhang L, Zhi QJ, Zhu Y. A bimodal burst energy distribution of a repeating fast radio burst source. Nature 2021; 598:267-271. [PMID: 34645999 DOI: 10.1038/s41586-021-03878-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 08/05/2021] [Indexed: 11/09/2022]
Abstract
The event rate, energy distribution and time-domain behaviour of repeating fast radio bursts (FRBs) contain essential information regarding their physical nature and central engine, which are as yet unknown1,2. As the first precisely localized source, FRB 121102 (refs. 3-5) has been extensively observed and shows non-Poisson clustering of bursts over time and a power-law energy distribution6-8. However, the extent of the energy distribution towards the fainter end was not known. Here we report the detection of 1,652 independent bursts with a peak burst rate of 122 h-1, in 59.5 hours spanning 47 days. A peak in the isotropic equivalent energy distribution is found to be approximately 4.8 × 1037 erg at 1.25 GHz, below which the detection of bursts is suppressed. The burst energy distribution is bimodal, and well characterized by a combination of a log-normal function and a generalized Cauchy function. The large number of bursts in hour-long spans allows sensitive periodicity searches between 1 ms and 1,000 s. The non-detection of any periodicity or quasi-periodicity poses challenges for models involving a single rotating compact object. The high burst rate also implies that FRBs must be generated with a high radiative efficiency, disfavouring emission mechanisms with large energy requirements or contrived triggering conditions.
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Affiliation(s)
- D Li
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China. .,University of Chinese Academy of Sciences, Beijing, China.
| | - P Wang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - W W Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Las Vegas, NV, USA.
| | - X X Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - R Duan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - Y K Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Y Feng
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - N Y Tang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,Department of Physics, Anhui Normal University, Wuhu, China
| | - S Chatterjee
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - J M Cordes
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - M Cruces
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - S Dai
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia.,Western Sydney University, Penrith, New South Wales, Australia
| | - V Gajjar
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Hobbs
- CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - C Jin
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - M Kramer
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D R Lorimer
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - C C Miao
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - C H Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - J R Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Z C Pan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Qian
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Spitler
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D Werthimer
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, China
| | - X Y Xie
- Guizhou Normal University, Guiyang, China
| | - Y L Yue
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,School of Physics and Technology, Wuhan University, Wuhan, China
| | - Q J Zhi
- Guizhou Normal University, Guiyang, China.,Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang, China
| | - Y Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
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16
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Coutre SE, Barr PM, Owen C, Robak T, Tedeschi A, Bairey O, Burger JA, Hillmen P, Devereux S, Grosicki S, McCarthy H, Li J, Simpson D, Offner F, Moreno C, Dai S, Szoke A, Dean JP, Kipps TJ, Ghia P. FIRST‐LINE TREATMENT WITH IBRUTINIB FOR PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA (CLL): 7‐YEAR RESULTS FROM RESONATE‐2. Hematol Oncol 2021. [DOI: 10.1002/hon.48_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- S. E. Coutre
- Stanford Cancer Center, Stanford University School of Medicine, Stanford California USA
| | - P. M. Barr
- Wilmot Cancer Institute, University of Rochester Medical Center, Clinical Trials Office Rochester USA
| | - C. Owen
- Tom Baker Cancer Centre, University of Calgary, Medicine and Oncology Calgary Canada
| | - T. Robak
- Medical University of Lodz, Copernicus Memorial Hospital, Hematology Lodz Poland
| | - A. Tedeschi
- ASST Grande Ospedale Metropolitano Niguarda, Hematology Milan Italy
| | - O. Bairey
- Rabin Medical Center, Life and Medicine Sciences Petah Tikva Israel
| | - J. A. Burger
- University of Texas MD Anderson Cancer Center, Leukemia Houston USA
| | - P. Hillmen
- The Leeds Teaching Hospitals, St. James Institute of Oncology, Oncology Leeds UK
| | - S. Devereux
- Kings College Hospital, NHS Foundation Trust, Lymphoma Biology London UK
| | - S. Grosicki
- School of Public Health, Silesian Medical University, Hematology and Cancer Prevention Katowice Poland
| | - H. McCarthy
- Royal Bournemouth General Hospital, Hematology Bournemouth UK
| | - J. Li
- Jiangsu Province Hospital, Hematology Nanjing China
| | - D. Simpson
- North Shore Hospital, Hematology Auckland New Zealand
| | - F. Offner
- Universitair Ziekenhuis Gent, Internal Medicine and Pediatrics Gent Belgium
| | - C. Moreno
- Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, Hematology Barcelona Spain
| | - S. Dai
- Pharmacyclics LLC, an AbbVie Company, Biostatistics Sunnyvale USA
| | - A. Szoke
- Pharmacyclics LLC, an AbbVie Company, Oncology Sunnyvale USA
| | - J. P. Dean
- Pharmacyclics LLC, an AbbVie Company, Oncology Sunnyvale USA
| | - T. J. Kipps
- UCSD Moores Cancer Center, Blood Cancer Research Fund San Diego USA
| | - P. Ghia
- Università Vita‐Salute San Raffaele and IRCCS Ospedale San Raffaele, Medical Oncology Milan Italy
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17
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Bridges CA, Martins ML, Jafta CJ, Sun XG, Paranthaman MP, Liu J, Dai S, Mamontov E. Dynamics of Emim + in [Emim][TFSI]/LiTFSI Solutions as Bulk and under Confinement in a Quasi-liquid Solid Electrolyte. J Phys Chem B 2021; 125:5443-5450. [PMID: 34003647 DOI: 10.1021/acs.jpcb.1c02383] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Quasi-liquid solid electrolytes are a promising alternative for next-generation Li batteries. These systems combine the safety of solid electrolytes with the desired properties of liquids and are typically formed by solutions of Li salts in ionic liquids incorporated into solid matrices. Here, we present a fundamental understanding of the transport properties in solutions of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Emim][TFSI]), either in bulk form or incorporated in a boron nitride (BN) matrix. We performed a series of quasi-elastic neutron scattering experiments that, given the high incoherent neutron scattering cross section of hydrogen, allowed us to focus on the Emim+ dynamics. First, [Emim][TFSI]/LiTFSI solutions (0.5 and 2.5 mol·kg-1) were investigated and we show how the increase in the concentration reduces the Emim+ mobility and increases the activation energy of their long-range motions. Then, the 0.5 mol·kg-1 solution was incorporated into the BN matrix and we report that the diffusivities of the Emim+ cations that remain mobile under confinement are highly accelerated in comparison with the bulk sample and the activation energy of these motions is drastically reduced. We present the experimental evidence that this effect is related to the content of the Emim+ cations immobilized near the surfaces of the BN pores.
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Affiliation(s)
- C A Bridges
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - M L Martins
- Neutron Scattering Division, Oak Ridge National Laboratory, P.O. Box 2008 MS6455, Oak Ridge, Tennessee 37831, United States
| | - C J Jafta
- Electrification and Energy Infrastructures, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - X G Sun
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - M P Paranthaman
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - J Liu
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - S Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - E Mamontov
- Neutron Scattering Division, Oak Ridge National Laboratory, P.O. Box 2008 MS6455, Oak Ridge, Tennessee 37831, United States
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Lu L, Chang M, Han X, Wang Q, Wang J, Yang H, Guan Q, Dai S. Beneficial effects of endophytic Pantoea ananatis with ability to promote rice growth under saline stress. J Appl Microbiol 2021; 131:1919-1931. [PMID: 33754394 DOI: 10.1111/jam.15082] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/11/2021] [Accepted: 03/19/2021] [Indexed: 11/28/2022]
Abstract
AIMS Soil salinization severely inhibits plant growth, leading to a low crop yield. The aim of the current study was to isolate endophytic bacteria with the ability to promote rice growth under saline conditions. METHODS AND RESULTS We isolated eight salt-tolerant endophytic bacteria from rice roots. An isolated strain D1 was selected due to its ability to stimulate rice seed germination in the presence of NaCl, which was identified as Pantoea ananatis D1. It exhibited multiple plant growth-promoting traits including phosphate solubilization, production of indole-3-acetic acid, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase and siderophore. Inoculation of P. ananatis D1 obviously enhanced the rice root and shoot growth under normal and saline conditions. It also significantly increased the contents of chlorophyll, total soluble protein, and proline in salt-stressed rice seedlings. Moreover P. ananatis D1 could ameliorate the oxidative stress in rice induced by NaCl and Na2 CO3 treatment. The malondialdehyde content and various antioxidant enzyme activities were decreased by P. ananatis D1 inoculation in salt-affected rice. In addition, P. ananatis D1 showed a positive potential for limiting the Na+ accumulation and enhancing the K+ uptake, leading to an increase of 1·2-1·7 fold in K+ /Na+ ratio under saline environment. CONCLUSIONS Pantoea ananatis D1 has the ability to improve the salt tolerance of rice seedlings. SIGNIFICANCE AND IMPACT OF THE STUDY The application of plant growth-promoting bacteria (PGPB) is an eco-friendly strategy to improve plant tolerance towards abiotic stresses. We demonstrated that P. ananatis D1 could be used as an effective halotolerant PGPB to enhance rice growth in different salt-affected soils.
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Affiliation(s)
- L Lu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - M Chang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - X Han
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Q Wang
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | - J Wang
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | - H Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Q Guan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - S Dai
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai, China
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19
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Li Y, Dai S, Huang N, Wu J, Yu C, Luo Y. Icaritin and icariin reduce p-Tau levels in a cell model of Alzheimer's disease by downregulating glycogen synthase kinase 3β. Biotechnol Appl Biochem 2021; 69:355-363. [PMID: 33502043 DOI: 10.1002/bab.2114] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 08/19/2020] [Accepted: 01/16/2021] [Indexed: 11/09/2022]
Abstract
This study aimed to explore the neuroprotective effect of icariin/icaritin (ICA/ICT) and the role of ICA/ICT in the treatment of Alzheimer's disease (AD). ICA and ICT were used to treat okadaic acid (OA)-induced Tau hyperphosphorylation in SH-SY5Y cells. We detected the relative changes in Tau, p-Tau, protein phosphatase 2A (PP2A), and glycogen synthase kinase 3β (GSK-3β) by Western blotting and enzyme-linked immunosorbent assay. At 40 nmol/L OA, the cell viability of the SH-SY5Y cells was significantly changed. We used different concentrations of ICA and IC to treat AD model cells and found that the effect of 2.5 μmol/L ICA and 1 μmol/L ICT was best after 48 H of treatment. After SH-SY5Y cell induction, the p-Tau levels were increased (P < 0.05); after the ICA/ICT treatment, the p-Tau and GSK-3β levels were decreased (P < 0.05), although PP2A expression did not change (P > 0.05). We found that ICA and ICT exert an effect on AD model cells by decreasing the levels of GSK-3β and p-Tau. The therapeutic effect of ICT is slightly better than that of ICA. Although these drugs were effective in the cell model, more studies are required to determine whether they are promising for the treatment and prevention of AD.
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Affiliation(s)
- Ying Li
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China.,Department of Neurology, First People's Hospital of Guiyang, Guiyang, Guizhou, People's Republic of China
| | - Shirui Dai
- XiangYa School of Medicine, Central South University, Changsha, Hunan, People's Republic of China
| | - Nanqu Huang
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
| | - Jie Wu
- Central Laboratory, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
| | - Changyin Yu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Yong Luo
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
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20
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Dai S, Mo Y, Wang Y, Xiang B, Liao Q, Zhou M, Li X, Li Y, Xiong W, Li G, Guo C, Zeng Z. Chronic Stress Promotes Cancer Development. Front Oncol 2020; 10:1492. [PMID: 32974180 PMCID: PMC7466429 DOI: 10.3389/fonc.2020.01492] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [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: 04/08/2020] [Accepted: 07/13/2020] [Indexed: 11/24/2022] Open
Abstract
Stress is an inevitable part of life. Chronic stress on account of reasons like adversity, depression, anxiety, or loneliness/social isolation can endanger human health. Recent studies have shown that chronic stress can induce tumorigenesis and promote cancer development. This review describes the latest progress of research on the molecular mechanisms by which chronic stress promotes cancer development. Primarily, chronic stress activates the classic neuroendocrine system [the hypothalamic-pituitary-adrenal (HPA) axis] and the sympathetic nervous system (SNS) and leads to a decline and dysfunction of the prefrontal cortex and the hippocampus under stress. Stress hormones produced during the activation of both the HPA axis and the SNS can promote tumorigenesis and cancer development through a variety of mechanisms. Chronic stress can also cause corresponding changes in the body's immune function and inflammatory response, which is significant because a long-term inflammatory response and the decline of the body's immune surveillance capabilities are implicated in tumorigenesis. Stress management is essential for both healthy people and cancer patients. Whether drugs that limit the signaling pathways downstream of the HPA axis or the SNS can suppress chronic stress-induced cancers or prolong patient survival deserves further study.
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Affiliation(s)
- Shirui Dai
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yongzhen Mo
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Yumin Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Bo Xiang
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Ming Zhou
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoling Li
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yong Li
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, United States
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Can Guo
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
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21
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Ding J, He S, Xiong Y, Liu D, Dai S, Hu H. Effects of Dietary Supplementation of Fumaric Acid on Growth Performance, Blood Hematological and Biochemical Profile of Broiler Chickens Exposed to Chronic Heat Stress. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2019-1147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- J Ding
- Anhui Science and Technology University, China
| | - S He
- Anhui Science and Technology University, China
| | - Y Xiong
- Anhui Science and Technology University, China
| | - D Liu
- Anhui Science and Technology University, China
| | - S Dai
- Anhui Science and Technology University, China
| | - H Hu
- Anhui Science and Technology University, China
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22
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Dai S, Sun Z, Lee M, Wang H, Yang Y, Lin Z. Olmsted syndrome with alopecia universalis caused by heterozygous mutation in
PERP. Br J Dermatol 2019; 182:242-244. [PMID: 31361044 DOI: 10.1111/bjd.18311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Dai
- Department of Dermatology Peking University First Hospital Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses Beijing China
| | - Z. Sun
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
| | - M. Lee
- Department of Dermatology Peking University First Hospital Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses Beijing China
| | - H. Wang
- Department of Dermatology Peking University First Hospital Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses Beijing China
| | - Y. Yang
- Department of Dermatology Peking University First Hospital Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses Beijing China
- Center for Genetic Diseases Hospital for Skin Diseases (Institute of Dermatology) Chinese Academy of Medical Sciences and Peking Union Medical College Nanjing China
| | - Z. Lin
- Department of Dermatology Peking University First Hospital Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses Beijing China
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23
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Chen Q, Dai S. [Imaging analysis of respiratory epithelial adenomatoid hamartoma in the nasal olfactory clefts]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:557-560. [PMID: 31163535 DOI: 10.13201/j.issn.1001-1781.2019.06.020] [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] [Received: 12/11/2018] [Indexed: 11/12/2022]
Abstract
Objective:To analyze the imaging features of respiratory epithelial adenomatoid hamartoma (REAH) in the nasal olfactory clefts. Method:Forty-two patients with REAH in the nasal olfactory clefts confirmed by pathology were enrolled in this study and their imaging features were analyzed. Result:All lesions of the patients were located in bilateral olfactory clefts, accompanied by varying degrees of sinusitis and nasal polyps. CT and MRI of sinuses showed that expanded soft tissue in bilateral olfactory region. The bilateral middle turbinate was extruded laterally. Sagittal images showed "discoid-shaped mass" changes. Conclusion:The imaging manifestations of REAH have certain characteristics, which can provide a basis for clinical diagnosis. Clinical analysis combined with imaging examination can improve the diagnosis of REAH and guide the treatment.
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Affiliation(s)
- Q Chen
- The Educational Base of the Air Force Hospital from Northern Theater of PLA, Jinzhou Medical University, Shenyang, 110042, China
| | - S Dai
- Department of Otorhinolaryngology, the Air Force Hospital from Northern Theater of PLA
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24
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Tedeschi A, Burger J, Barr P, Robak T, Owen C, Ghia P, Bairey O, Hillmen P, Coutre S, Devereux S, Grosicki S, McCarthy H, Li J, Simpson D, Offner F, Moreno C, Dai S, Lal I, Dean J, Kipps T. FIVE-YEAR FOLLOW-UP OF FIRST-LINE IBRUTINIB FOR TREATMENT OF PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA//SMALL LYMPHOCYTIC LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.67_2629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Tedeschi
- Department of Hematology; ASST Grande Ospedale Metropolitano Niguarda; Milan Italy
| | - J. Burger
- Department of Leukemia; University of Texas MD Anderson Cancer Center; Houston TX United States
| | - P.M. Barr
- Department of Medicine, Wilmot Cancer Institute; University of Rochester Medical Center; Rochester NY United States
| | - T. Robak
- Department of Hematology, Medical University of Lodz; Copernicus Memorial Hospital; Lodz Poland
| | - C. Owen
- Department of Oncology; Tom Baker Cancer Centre, University of Calgary; Calgary AB Canada
| | - P. Ghia
- Department of Experimental Oncology; Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele; Milan Italy
| | - O. Bairey
- Department of Hematology; Rabin Medical Center; Petah Tikva Israel
| | - P. Hillmen
- Department of Medicine, The Leeds Teaching Hospitals; St. James Institute of Oncology; Leeds United Kingdom
| | - S. Coutre
- Department of Medicine, Stanford Cancer Center; Stanford University School of Medicine; Stanford CA United States
| | - S. Devereux
- Department of Hematology; Kings College Hospital, NHS Foundation Trust; London United Kingdom
| | - S. Grosicki
- Department of Internal Medicine; School of Public Health, Silesian Medical University; Katowice Poland
| | - H. McCarthy
- Department of Hematology; Royal Bournemouth General Hospital; Bournemouth United Kingdom
| | - J. Li
- Department of Medicine; Jiangsu Province Hospital; Nanjing China
| | - D. Simpson
- Department of Hematology; North Shore Hospital; Auckland New Zealand
| | - F. Offner
- Department of Clinical Hematology; Universitair Ziekenhuis Gent; Gent Belgium
| | - C. Moreno
- Department of Hematology; Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona; Barcelona Spain
| | - S. Dai
- Department of Biostatistics; Pharmacyclics LLC, an AbbVie Company; Sunnyvale CA United States
| | - I. Lal
- Department of Clinical Science; Pharmacyclics LLC, an AbbVie Company; Sunnyvale CA United States
| | - J.P. Dean
- Department of Clinical Science; Pharmacyclics LLC, an AbbVie Company; Sunnyvale CA United States
| | - T.J. Kipps
- Department of Medicine; UCSD Moores Cancer Center; La Jolla CA United States
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25
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Wang Y, Dai S, Cheng X, Prado E, Yan L, Hu J, He Q, Lv Y, Lv Y, Du L. Notch3 signaling activation in smooth muscle cells promotes extrauterine growth restriction-induced pulmonary hypertension. Nutr Metab Cardiovasc Dis 2019; 29:639-651. [PMID: 30954415 DOI: 10.1016/j.numecd.2019.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/01/2019] [Accepted: 03/04/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIMS Early postnatal life is a critical developmental period that affects health of the whole life. Extrauterine growth restriction (EUGR) causes cardiovascular development problems and diseases, including pulmonary arterial hypertension (PAH). PAH is characterized by proliferation, migration, and anti-apoptosis of pulmonary artery smooth muscle cells (PASMCs). However, the role of PASMCs in EUGR has not been studied. Thus, we hypothesized that PASMCs dysfunction played a role in EUGR-induced pulmonary hypertension. METHODS AND RESULTS Here we identified that postnatal nutritional restriction-induced EUGR rats exhibited an elevated mean pulmonary arterial pressure and vascular remodeling at 12 weeks old. PASMCs of EUGR rats showed increased cell proliferation and migration features. In EUGR-induced PAH rats, Notch3 signaling was activated. Relative mRNA and protein expression levels of Notch3 intracellular domain (Notch3 ICD), and Notch target gene Hey1 in PASMCs were upregulated. We further demonstrated that pharmacological inhibition of Notch3 activity by using a γ-secretase inhibitor DAPT, which blocked the cleavage of Notch proteins to ICD peptides, could effectively inhibit PASMC proliferation. Specifically knocked down of Notch3 in rat PASMCs by shRNA restored the abnormal PASMC phenotype in vitro. We found that administration of Notch signaling inhibitor DAPT could successfully reduce mean pulmonary arterial pressure in EUGR rats. CONCLUSIONS The present study demonstrated that upregulation of Notch3 signaling in PASMCs was crucial for the development of EUGR-induced PAH. Blocking Notch3-Hey1 signaling pathway in PASMCs provides a potential therapeutic target for PAH.
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MESH Headings
- Animals
- Animals, Newborn
- Arterial Pressure
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Caloric Restriction
- Cell Movement
- Cell Proliferation
- Disease Models, Animal
- Growth Disorders/complications
- Growth Disorders/metabolism
- Hypertension, Pulmonary/etiology
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/pathology
- Hypertension, Pulmonary/physiopathology
- Male
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Pulmonary Artery/physiopathology
- Rats, Sprague-Dawley
- Receptor, Notch3/genetics
- Receptor, Notch3/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction
- Vascular Remodeling
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Affiliation(s)
- Y Wang
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - S Dai
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - X Cheng
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - E Prado
- Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - L Yan
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - J Hu
- Department of Surgical Intensive Care Unit, Second Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Q He
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Y Lv
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Y Lv
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - L Du
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China.
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26
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Dai S, Dai Y, Peng J, Xie X, Ning J. Simplified colonic dialysis with hemodialysis solutions delays the progression of chronic kidney disease. QJM 2019; 112:189-196. [PMID: 30407603 DOI: 10.1093/qjmed/hcy260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/08/2018] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The colon plays a vital role in the disposal of nitrogenous waste products. Therefore, the colon may provide a therapeutic target for managing chronic kidney disease (CKD). AIM To evaluate the efficacy of a simplified model of colonic dialysis with hemodialysis solutions (SCD) to delay the progression of stages 3-5 CKD. DESIGN Retrospective study. METHODS We retrospectively analyzed 178 stages 3-5 CKD patients who did or did not receive SCD (SCD group, n = 88; control group, n = 90). The follow-up was 36 months. The outcome of CKD progression was defined as a decrease in 50% or more in estimated glomerular filtration rate, starting hemodialysis or peritoneal dialysis or undergoing transplantation. The Kaplan-Meier analysis was used to compare CKD progression between SCD and control groups as well as between subgroups at different CKD stages. Cox proportional hazard models adjusted for patients' characteristics were used to examine the association between SCD and the outcome. RESULTS For all patients, the outcome was significantly better in SCD group compared to control group (P < 0.05). The results were similar in the subgroups of patients at stage 4 (P = 0.001) and stage 5 (P = 0.000), but not in the subgroup of patients at stage 3 (P = 0.121). For all patients, SCD was associated with a lower risk of CKD progression after adjusted for patients' characteristics (adjusted hazard ratio, 0.373; 95% confidence interval, 0.201-0.694; P 0.002). CONCLUSION SCD is an effective supplementary therapy to delay the progression of stages 4-5 CKD.
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Affiliation(s)
- S Dai
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - Y Dai
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - J Peng
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - X Xie
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - J Ning
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
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Liu Y, Ma XQ, Sun XH, Dai S, Zhang JF, Li HB, Ma X, Wang JY, Dou Q, Tian JY, Jia JP. [The application of 3D reconstruction in investigating the frontal sinus drainage pathway based on computer tomography data]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:171-176. [PMID: 29775014 DOI: 10.13201/j.issn.1001-1781.2018.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to explore the value of 3D reconstruction technology based on computer tomography data in understanding the frontal sinus drainage pathway. Method:Three-dimensional reconstruction of DICOM data from 100 cases of sinus CT was performed by using Mimics 19.0 software. The 3D models were used to study types, the relative locations of frontal sinus and recess cells as well as the influence of the frontal sinus drainage pathway. Result:The 3D model of frontal sinus, frontal recess cells and frontal sinus drainage pathway were reconstructed successfully. Among them, the incidence of nasal cavity was 95.5% (191/200), nasal cavity was 31.5% (63/200), nasal cavity on the frontal air room was 24.5% (49/200) supra bulla cells were 54% (108/200), supra bulla frontal cells were 14.5% (29/200), supraorbital ethmoid cells were 20.5% (41/200), and the rate of frontal septal cells were 4% (8/200). It visually demonstrated the relationship between the frontal recess and the frontal sinus drainage channel. Conclusion:The 3D reconstruction technology based on computer tomography data not only helps us to understand the anatomy of the frontal sinus, the relative position of the frontal crypt and the effect on the frontal sinus drainage channel, but also provides a new method for preoperative planning and intraoperative guidance to endoscopic frontal sinus surgery.
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Affiliation(s)
- Y Liu
- The Educational Base of the 463 Hospital of PLA, Jinzhou Medical University, Shenyang, 110042, China
| | - X Q Ma
- Department of Radiology, the 463 Hospital of PLA
| | - X H Sun
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - S Dai
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - J F Zhang
- Department of Radiology, the 463 Hospital of PLA
| | - H B Li
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - X Ma
- Shenyang Orthopedic Hospital(Liaoning Osteoarthropathy Key Laboratory)
| | - J Y Wang
- Shenyang Orthopedic Hospital(Liaoning Osteoarthropathy Key Laboratory)
| | - Q Dou
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - J Y Tian
- The Educational Base of the 463 Hospital of PLA, Jinzhou Medical University, Shenyang, 110042, China
| | - J P Jia
- Department of Otorhinolaryngology, the 463 Hospital of PLA
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Yao Q, Diao Y, Zheng Q, Lv T, Song K, Liu S, Dai S, Cui Z. Laparoscopic Bilateral Gonadectomy for a Patient with Turner's Syndrome and Hyperandrogenism. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.741] [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: 10/28/2022]
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29
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Odin A, Moineau B, Clarac E, Kistner A, Barbado M, Chipon E, Moreau-Gaudry A, Medici M, Dai S, Vuillerot C, Bosson J, Pérennou D. Conception and content validity of a new scale assessing lateropulsion after stroke: The SCALA. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.395] [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: 10/28/2022]
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30
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Dai S, Clarac E, Odin A, Kistner A, Chrispin A, Davoine P, Jaeger M, Piscicelli C, Pérennou D. Lateropulsion syndrome or Pusher syndrome? Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Chong CF, Misra SL, Escardo-Paton JA, Dai S. Predictors of long-term neurological outcomes in non-accidental head injury. Eye (Lond) 2017; 32:608-614. [PMID: 29219962 DOI: 10.1038/eye.2017.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 10/25/2017] [Indexed: 11/09/2022] Open
Abstract
BackgroundNon-accidental head injury (NAI) is an inflicted injury usually on a child, often resulting in long-term neurological impairment and occasionally death. This study aimed to investigate the predictive values of acute findings, especially ocular, for long-term neurological outcomes.MethodsMedical records including retinal images of all children who attended the local Children's hospital with a diagnosis of NAI from over a period of 5 years were reviewed and data collected via the electronic patient record system. Patient demographics, injuries sustained, wide-field digital retinal images, visual acuity and sequalae, neurological function, and global function was noted. IBM SPSS software program was used for statistical analysis.ResultsOf the 38 patients (24 males, 14 females), 12 children died acutely from the head injury with the remaining 26 children available for long-term follow-up. A younger age of injury (P=0.004) was the only statistically significant predictor of good neurological outcome as compared with absence of macular retinoschisis, unilateral retinal haemorrhage, and unilateral subdural haemorrhage. Of the 38 children, 17 children had retinoschisis; 9 children with macular retinoschisis died acutely while 4 suffered a degree of developmental delay and only 4 were developmentally normal at the last follow-up. Long-term visual acuity data was available for 18 of the 26 survivors (range: NPL to Snellen 6/5). A statistical significance was noted between retinoschisis and worsened visual acuity (P<0.05).ConclusionsBilateral macular retinoschisis on acute presentation of NAI is associated with a seven-fold and unilateral with a four-fold increase in the development of a poor neurological outcome and eventual death. Conflicting to other studies, younger children presented better neurological outcomes.
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Affiliation(s)
- C F Chong
- Department of Ophthalmology, Greenlane Clinical Centre, Auckland, New Zealand.,Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - S L Misra
- Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | | | - S Dai
- Department of Ophthalmology, Greenlane Clinical Centre, Auckland, New Zealand.,Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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32
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Hu F, Luan Y, Fei Z, Palubski IZ, Goldflam MD, Dai S, Wu JS, Post KW, Janssen GCAM, Fogler MM, Basov DN. Imaging the Localized Plasmon Resonance Modes in Graphene Nanoribbons. Nano Lett 2017; 17:5423-5428. [PMID: 28806525 DOI: 10.1021/acs.nanolett.7b02029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report a nanoinfrared (IR) imaging study of the localized plasmon resonance modes of graphene nanoribbons (GNRs) using a scattering-type scanning near-field optical microscope (s-SNOM). By comparing the imaging data of GNRs that are aligned parallel and perpendicular to the in-plane component of the excitation laser field, we observed symmetric and asymmetric plasmonic interference fringes, respectively. Theoretical analysis indicates that the asymmetric fringes are formed due to the interplay between the localized surface plasmon resonance (SPR) mode excited by the GNRs and the propagative surface plasmon polariton (SPP) mode launched by the s-SNOM tip. With rigorous simulations, we reproduce the observed fringe patterns and address quantitatively the role of the s-SNOM tip on both the SPR and SPP modes. Furthermore, we have seen real-space signatures of both the dipole and higher-order SPR modes by varying the ribbon width.
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Affiliation(s)
- F Hu
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - Y Luan
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - Z Fei
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - I Z Palubski
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - M D Goldflam
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
- Sandia National Laboratories , Albuquerque, New Mexico 87185, United States
| | - S Dai
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - J-S Wu
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - K W Post
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - G C A M Janssen
- Department of Precision and Microsystems Engineering, Delft University of Technology , Mekelweg 2, 2628 CD Delft, Netherland
| | - M M Fogler
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - D N Basov
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
- Department of Physics, Columbia University , New York, New York 10027, United States
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33
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Li Y, Sun H, Zhang C, Liu J, Zhang H, Fan F, Everley RA, Ning X, Sun Y, Hu J, Liu J, Zhang J, Ye W, Qiu X, Dai S, Liu B, Xu H, Fu S, Gygi SP, Zhou C. Identification of translationally controlled tumor protein in promotion of DNA homologous recombination repair in cancer cells by affinity proteomics. Oncogene 2017; 36:6839-6849. [PMID: 28846114 PMCID: PMC5735297 DOI: 10.1038/onc.2017.289] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 06/09/2017] [Accepted: 07/13/2017] [Indexed: 01/21/2023]
Abstract
Translationally controlled tumor protein(TCTP) has been implicated in the regulation of apoptosis, DNA repair and drug resistance. However, the underlying molecular mechanisms are poorly defined. To better understand the molecular mechanisms underlying TCTP involved in cellular processes, we performed an affinity purification-based proteomic profiling to identify proteins interacting with TCTP in human cervical cancer HeLa cells. We found that a group of proteins involved in DNA repair are enriched in the potential TCTP interactome. Silencing TCTP by short hairpin RNA in breast carcinoma MCF-7 cells leads to the declined repair efficiency for DNA double-strand breaks on the GFP-Pem1 reporter gene by homologous recombination, the persistent activation and the prolonged retention of γH2AX and Rad51 foci following ionizing radiation. Reciprocal immunoprecipitations indicated that TCTP forms complexes with Rad51 in vivo, and the stability maintenance of Rad51 requires TCTP in MCF-7 cells under normal cell culture conditions. Moreover, inactivation of TCTP by sertraline treatment enhances UVC irradiation-induced apoptosis in MCF-7 cells, and causes sensitization to DNA-damaging drug etoposide and DNA repair inhibitor olaparib. Thus, we have identified an important role of TCTP in promoting DNA double-stand break repair via facilitating DNA homologous recombination processes and highlighted the great potential of TCTP as a drug target to enhance conventional chemotherapy for cancer patients with high levels of TCTP expression.
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Affiliation(s)
- Y Li
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - H Sun
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - C Zhang
- The 2nd Affiliated Hospital, Harbin Medical University, Harbin, China
| | - J Liu
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - H Zhang
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - F Fan
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - R A Everley
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - X Ning
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - Y Sun
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - J Hu
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - J Liu
- The 2nd Affiliated Hospital, Harbin Medical University, Harbin, China
| | - J Zhang
- The 2nd Affiliated Hospital, Harbin Medical University, Harbin, China
| | - W Ye
- The 2nd Affiliated Hospital, Harbin Medical University, Harbin, China
| | - X Qiu
- The 2nd Affiliated Hospital, Harbin Medical University, Harbin, China
| | - S Dai
- The Tumor Hospital, Harbin Medical University, Harbin, China
| | - B Liu
- The Tumor Hospital, Harbin Medical University, Harbin, China
| | - H Xu
- Department of Clinical Laboratory, The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - S Fu
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - S P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - C Zhou
- The Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
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Fleck BW, Williams C, Juszczak E, Cocker K, Stenson BJ, Darlow BA, Dai S, Gole GA, Quinn GE, Wallace DK, Ells A, Carden S, Butler L, Clark D, Elder J, Wilson C, Biswas S, Shafiq A, King A, Brocklehurst P, Fielder AR. An international comparison of retinopathy of prematurity grading performance within the Benefits of Oxygen Saturation Targeting II trials. Eye (Lond) 2017; 32:74-80. [PMID: 28752837 PMCID: PMC5669461 DOI: 10.1038/eye.2017.150] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 06/21/2017] [Indexed: 12/19/2022] Open
Abstract
Purpose To investigate whether the observed international differences in retinopathy of prematurity (ROP) treatment rates within the Benefits of Oxygen Saturation Targeting (BOOST) II trials might have been caused by international variation in ROP disease grading. Methods Groups of BOOST II trial ophthalmologists in UK, Australia, and New Zealand (ANZ), and an international reference group (INT) used a web based system to grade a selection of RetCam images of ROP acquired during the BOOST II UK trial. Rates of decisions to treat, plus disease grading, ROP stage grading, ROP zone grading, inter-observer variation within groups and intra-observer variation within groups were measured. Results Forty-two eye examinations were graded. UK ophthalmologists diagnosed treat-requiring ROP more frequently than ANZ ophthalmologists, 13.9 (3.49) compared to 9.4 (4.46) eye examinations, P=0.038. UK ophthalmologists diagnosed plus disease more frequently than ANZ ophthalmologists, 14.1 (6.23) compared to 8.5 (3.24) eye examinations, P=0.021. ANZ ophthalmologists diagnosed stage 2 ROP more frequently than UK ophthalmologists, 20.2 (5.8) compared to 12.7 (7.1) eye examinations, P=0.026. There were no other significant differences in the grading of ROP stage or zone. Inter-observer variation was higher within the UK group than within the ANZ group. Intra-observer variation was low in both groups. Conclusions We have found evidence of international variation in the diagnosis of treatment-requiring ROP. Improved standardisation of the diagnosis of treatment-requiring ROP is required. Measures might include improved training in the grading of ROP, using an international approach, and further development of ROP image analysis software.
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Affiliation(s)
- B W Fleck
- Department of Child Life and Health, University of Edinburgh, Edinburgh, UK
| | - C Williams
- Department of Paediatric Ophthalmology, School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - E Juszczak
- Clinical Trials Unit, National Perinatal Epidemiology Unit, University of Oxford, Oxford, UK
| | - K Cocker
- Department of Ophthalmology, Princess Alexandra Eye Pavilion, Edinburgh, UK
| | - B J Stenson
- Neonatal Unit, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - B A Darlow
- Cure Kids Professor of Paediatric Research, Department of Paediatrics, University of Otago, Christchurch, New Zealand
| | - S Dai
- Department of Paediatric Ophthalmology, Starship Children's Hospital, University of Auckland, Auckland, New Zealand
| | - G A Gole
- Department of Ophthalmology, University of Queensland, Brisbane, Australia
| | - G E Quinn
- Department of Pediatric Ophthalmology, Children's Hospital of Philadelphia, Philadelphia, USA
| | - D K Wallace
- Department of Pediatric Ophthalmology, Duke University, Durham, USA
| | - A Ells
- Department of Ophthalmology, University of Calgary, Alberta, Canada
| | - S Carden
- Department of Ophthalmology, Royal Children's Hospital, Victoria, Australia
| | - L Butler
- Department of Paediatric Ophthalmology, Birmingham and Midlands Eye Centre, Birmingham, UK
| | - D Clark
- Department of Ophthalmology, Aintree University Hospital, Liverpool, UK
| | - J Elder
- Department of Ophthalmology, Royal Children's Hospital, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - C Wilson
- Department of Ophthalmology, Chelsea and Westminster Hospital, London, UK
| | - S Biswas
- Department of Paediatric Ophthalmology, Manchester Royal Eye Hospital, Central Manchester Foundation Trust and Manchester Academic Health Sciences Centre, Manchester, UK
| | - A Shafiq
- Department of Ophthalmology, Newcastle Eye Centre, Newcastle, UK
| | - A King
- Clinical Trials Unit, National Perinatal Epidemiology Unit, University of Oxford, Oxford, UK
| | - P Brocklehurst
- Clinical Trials Unit, National Perinatal Epidemiology Unit, University of Oxford, Oxford, UK
| | - A R Fielder
- Department of Ophthalmology, Division of Optometry and Visual Sciences, City University, London, UK
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Montillo M, Byrd J, Hillmen P, O'Brien S, Barrientos J, Reddy N, Coutre S, Tam C, Mulligan S, Jaeger U, Barr P, Furman R, Kipps T, Thornton P, Moreno C, Pagel J, Burger J, Jones J, Dai S, Vezan R, James D, Brown J. LONG-TERM EFFICACY AND SAFETY IN THE RESONATE STUDY: IBRUTINIB IN PATIENTS WITH PREVIOUSLY TREATED CHRONIC LYMPHOCYTIC LEUKEMIA (CLL) WITH UP TO FOUR YEARS FOLLOW-UP. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_98] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Montillo
- Department of Haematology & Oncology; Niguarda Cancer Center, Niguarda Hospital; Milan Italy
| | - J.C. Byrd
- Division of Hematology, Department of Internal Medicine; The Ohio State University Comprehensive Cancer Center; Columbus USA
| | - P. Hillmen
- Department of Haematology; The Leeds Teaching Hospitals, St. James Institute of Oncology; Leeds UK
| | - S. O'Brien
- Chao Family Comprehensive Cancer Center; University of California Irvine; Orange USA
| | - J.C. Barrientos
- Division of Hematology and Medical Oncology; Department of Medicine, Hofstra Northwell School of Medicine; Hempstead USA
| | - N.M. Reddy
- Hematology/Oncology; Vanderbilt-Ingram Cancer Center; Nashville USA
| | - S. Coutre
- Division of Hematology, Stanford Cancer Center; Stanford University School of Medicine; Stanford USA
| | - C.S. Tam
- Department of Haematology, Peter MacCallum Cancer Centre and St. Vincent's Hospital; Melbourne Australia
| | - S.P. Mulligan
- Hematology; Royal North Shore Hospital, St. Leonards; Australia
| | - U. Jaeger
- Division of Hematology and Hemostaseology; Medical University of Vienna; Wien Austria
| | - P.M. Barr
- James P. Wilmot Cancer Center
- Department of Medicine, Hematology/Oncology; University of Rochester Medical Center; Rochester USA
| | - R.R. Furman
- Division of Hematology and Medical Oncology, Weill Cornell Medical College; New York USA
| | - T.J. Kipps
- Moores Cancer Center; University of California San Diego; La Jolla USA
| | - P. Thornton
- Department of Haematology; Beaumont Hospital; Dublin Republic of Ireland
| | - C. Moreno
- Hematology Department; Hospital de la Santa Creu Sant Pau; Barcelona Spain
| | - J.M. Pagel
- Hematologic Malignancies Program; Swedish Cancer Institute; Seattle USA
| | - J.A. Burger
- Department of Leukemia; University of Texas MD Anderson Cancer Center; Houston USA
| | - J. Jones
- Division of Hematology, Department of Internal Medicine; The Ohio State University Comprehensive Cancer Center; Columbus USA
| | - S. Dai
- Biostatistics; Pharmacyclics LLC, an AbbVie Company; Sunnyvale USA
| | - R. Vezan
- Clinical Research; Pharmacyclics LLC, an Abbvie Company; Sunnyvale USA
| | - D.F. James
- Clinical Research; Pharmacyclics LLC, an Abbvie Company; Sunnyvale USA
| | - J.R. Brown
- Division of Hematologic Malignancies; CLL Center, Dana-Farber Cancer Institute; Boston USA
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Dai S, Nan X, Zhao H, Song Q, Zhang C. 489 Nagashima-type palmoplantar keratoderma: Mutation analysis of the SERPINB 7 gene. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang JG, Guo YZ, Kong YZ, Dai S, Zhao BY. High non-esterified fatty acid concentrations promote expression and secretion of fibroblast growth factor 21 in calf hepatocytes cultured in vitro. J Anim Physiol Anim Nutr (Berl) 2017; 102:e476-e481. [PMID: 28447390 DOI: 10.1111/jpn.12699] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/24/2017] [Indexed: 12/30/2022]
Abstract
Negative energy balance is considered as the pathological basis of energy metabolic disorders in periparturient dairy cows. Serum non-esterified fatty acids (NEFA) are one of the most important indicators of energy balance status. Fibroblast growth factor 21 (FGF21) has been identified as a hepatokine involved in regulation of metabolic adaptations, such as promoting hepatic lipid oxidation and ketogenesis, during energy deprivation. However, the direct effects of NEFA on FGF21 expression and secretion in bovine hepatocytes are not entirely clear. The objective of this study was to investigate the effects of different NEFA concentrations on FGF21 expression and secretion in calf hepatocytes cultured in vitro. NEFA were added to the culture solution at final concentrations of 0.6, 1.2, 1.8 and 2.4 mmol/L. After 24 hr of continuous culture, FGF21 mRNA and protein expression levels in the hepatocytes were determined by real-time PCR and Western blot respectively. FGF21 secretion in the supernatant was determined by enzyme-linked immunosorbent assay (ELISA). The results showed that expression and secretion of FGF21 at 0.6 mmol/L NEFA-treated hepatocytes was higher than that of the control group (p < .05). The FGF21 expression and secretion were similar at 1.2, 1.8 and 2.4 mmol/L NEFA-treated hepatocytes and significantly higher than those observed for controls (p < .01). These data suggest that high concentrations of NEFA significantly promote FGF21 expression and secretion in bovine hepatocytes. In particular, this promotion occurs in a dose-dependent manner and may be involved in the pathological processes of energy metabolism disorders of dairy cows in the peripartum period.
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Affiliation(s)
- J G Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Z Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Z Kong
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - S Dai
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - B Y Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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38
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Fei Z, Foley JJ, Gannett W, Liu MK, Dai S, Ni GX, Zettl A, Fogler MM, Wiederrecht GP, Gray SK, Basov DN. Ultraconfined Plasmonic Hotspots Inside Graphene Nanobubbles. Nano Lett 2016; 16:7842-7848. [PMID: 27960518 DOI: 10.1021/acs.nanolett.6b04076] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report on a nanoinfrared (IR) imaging study of ultraconfined plasmonic hotspots inside graphene nanobubbles formed in graphene/hexagonal boron nitride (hBN) heterostructures. The volume of these plasmonic hotspots is more than one-million-times smaller than what could be achieved by free-space IR photons, and their real-space distributions are controlled by the sizes and shapes of the nanobubbles. Theoretical analysis indicates that the observed plasmonic hotspots are formed due to a significant increase of the local plasmon wavelength in the nanobubble regions. Such an increase is attributed to the high sensitivity of graphene plasmons to its dielectric environment. Our work presents a novel scheme for plasmonic hotspot formation and sheds light on future applications of graphene nanobubbles for plasmon-enhanced IR spectroscopy.
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Affiliation(s)
- Z Fei
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
- Center for Nanoscale Materials, Argonne National Laboratory , Argonne, Illinois 60439, United States
- Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - J J Foley
- Center for Nanoscale Materials, Argonne National Laboratory , Argonne, Illinois 60439, United States
- Department of Chemistry, William Paterson University , Wayne, New Jersey 07470, United States
| | - W Gannett
- Department of Physics, University of California at Berkeley , Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - M K Liu
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
- Department of Physics and Astronomy, Stony Brook University , Stony Brook, New York 11794, United States
| | - S Dai
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - G X Ni
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - A Zettl
- Department of Physics, University of California at Berkeley , Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - M M Fogler
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - G P Wiederrecht
- Center for Nanoscale Materials, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - S K Gray
- Center for Nanoscale Materials, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - D N Basov
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
- Department of Physics, Columbia University , New York, New York 10027, United States
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Huang J, Liu Y, Dai S, Lu P, Ba Y, Wu L, Bai Y, Zhang S, Feng J, Cheng Y, Li J, Wen L, Yuan X, Ma C, Fan Q, Wang X, Xu B. Randomized, open-label, phase III study comparing irinotecan plus S-1 with S-1 alone in patients with advanced esophageal squamous cell carcinoma after failure of prior platinum- or taxane-based chemotherapy: Results of an interim analysis. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw435.18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Hu H, Bai X, Wen A, Shah A, Dai S, Ren Q, Wang S, He S, Wang L. Assessment of interactions between glutamine and glucose on meat quality, AMPK, and glutamine concentrations in pectoralis major meat of broilers under acute heat stress. J APPL POULTRY RES 2016. [DOI: 10.3382/japr/pfw021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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41
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Zhan L, Qin Q, Lu J, Liu J, Zhu H, Yang X, Zhang C, Xu L, Liu Z, Cai J, Ma J, Dai S, Tao G, Cheng H, Sun X. Novel poly (ADP-ribose) polymerase inhibitor, AZD2281, enhances radiosensitivity of both normoxic and hypoxic esophageal squamous cancer cells. Dis Esophagus 2016; 29:215-23. [PMID: 25604309 DOI: 10.1111/dote.12299] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Radiotherapy plays an important role in the treatment of esophageal squamous cell carcinoma (ESCC). However, the outcome of radiotherapy in ESCC remains unsatisfactory because esophageal squamous cancer cells, particularly those under hypoxic condition, exhibit radioresistance. The aim of this study was to determine whether or not AZD2281, a potent poly (ADP-ribose) polymerase (PARP) inhibitor, could enhance the radiation sensitivity of two ESCC cell lines, namely ECA109 and TE13. The radiosensitizing effect of AZD2281 was evaluated on the basis of cell death, clonogenic survival and tumor xenograft progression. AZD2281 alone was slightly toxic to ESCC cell lines. Apoptosis was increased and clonogenic survival was decreased in both cell lines when AZD2281 was combined with ionizing radiation (IR) under normoxic condition. AZD2281 enhanced IR-induced apoptosis to a more significant level under chronic hypoxic condition (0.2% O(2), 48 hour) than under normoxic condition. AZD2281 also slightly enhanced clonogenic cell death under chronic hypoxic condition compared with that under normoxic condition. This result could be associated with increased radiation-induced DNA double-strand breaks (DSB), decreased DSB repair and increased apoptosis of ESCC cells. Furthermore, homologous recombination (HR) protein Rad51 expression and focus formation were decreased in ESCC cells exposed to moderate chronic hypoxic condition (0.2% O(2), 48 hour); this result indicated that chronic hypoxic ESCC cells were HR deficient, possibly causing contextual synthetic lethality with PARP inhibitor in radiation sensitization. AZD2281 was also a radiation sensitizer in ESCC tumor xenograft models. Hence, in vitro and in vivo findings provide evidence that AZD2281 potently sensitizes ESCC cells to X-ray irradiation. The selective cell killing of HR-defective hypoxic cells contributes to radiosensitization by PARP inhibitor in ESCC cells under hypoxic condition.
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Affiliation(s)
- L Zhan
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Q Qin
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - J Lu
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - J Liu
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - H Zhu
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X Yang
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - C Zhang
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - L Xu
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Z Liu
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - J Cai
- Department of Radiotherapy, Nantong Tumor Hospital Affiliated to Nantong University, Nantong, China
| | - J Ma
- Department of Radiotherapy, the Second People's Hospital of Lian Yungang, Lian Yungang Hospital Affiliated to Bengbu Medical College, Lian Yungang, China
| | - S Dai
- Department of Radiotherapy, People's Hospital of Tai Zhou, Taizhou, China
| | - G Tao
- Department of Radiotherapy, the First People's Hospital of Huai'an, Huai'an, China
| | - H Cheng
- Department of Synthetic Internal Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X Sun
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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42
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Tang M, Chen C, Li J, Xiang W, Wu H, Wu J, Dai S, Wu H, Li T, Wang G. Fabivirga thermotolerans gen. nov., sp. nov., a novel marine bacterium isolated from culture broth of a marine cyanobacterium. Int J Syst Evol Microbiol 2016; 66:1095-1099. [DOI: 10.1099/ijsem.0.000839] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- M. Tang
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
- University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - C. Chen
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
- University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - J. Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
- University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - W. Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - H. Wu
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - J. Wu
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - S. Dai
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - H. Wu
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - T. Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - G. Wang
- Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Key Laboratory of Marine Materia Medica (LMMM-GD), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
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43
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Abney CW, Das S, Mayes RT, Kuo LJ, Wood J, Gill G, Piechowicz M, Lin Z, Lin W, Dai S. A report on emergent uranyl binding phenomena by an amidoxime phosphonic acid co-polymer. Phys Chem Chem Phys 2016; 18:23462-8. [DOI: 10.1039/c6cp04772f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
XAFS investigations of uranyl binding by an adsorbent polymer reveal different coordination modes than anticipated from previous small molecule studies.
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Affiliation(s)
| | - S. Das
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | | | - L.-J. Kuo
- Marine Sciences Laboratory
- Pacific Northwest National Laboratory
- Sequim
- USA
| | - J. Wood
- Marine Sciences Laboratory
- Pacific Northwest National Laboratory
- Sequim
- USA
| | - G. Gill
- Marine Sciences Laboratory
- Pacific Northwest National Laboratory
- Sequim
- USA
| | | | - Z. Lin
- The University of Chicago
- Chicago
- USA
| | - W. Lin
- The University of Chicago
- Chicago
- USA
| | - S. Dai
- Oak Ridge National Laboratory
- Oak Ridge
- USA
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44
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Cui X, Dini S, Dai S, Bi J, Binder BJ, Green JEF, Zhang H. A mechanistic study on tumour spheroid formation in thermosensitive hydrogels: experiments and mathematical modelling. RSC Adv 2016. [DOI: 10.1039/c6ra11699j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Thermo-reversible microgels to culture and harvest uniform-sized tumour spheroids with a narrow size-distribution.
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Affiliation(s)
- X. Cui
- School of Chemical Engineering
- University of Adelaide
- Adelaide
- Australia
| | - S. Dini
- School of Mathematical Sciences
- University of Adelaide
- Adelaide
- Australia
| | - S. Dai
- School of Chemical Engineering
- University of Adelaide
- Adelaide
- Australia
| | - J. Bi
- School of Chemical Engineering
- University of Adelaide
- Adelaide
- Australia
| | - B. J. Binder
- School of Mathematical Sciences
- University of Adelaide
- Adelaide
- Australia
| | - J. E. F. Green
- School of Mathematical Sciences
- University of Adelaide
- Adelaide
- Australia
| | - H. Zhang
- School of Chemical Engineering
- University of Adelaide
- Adelaide
- Australia
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45
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Fei Z, Goldflam MD, Wu JS, Dai S, Wagner M, McLeod AS, Liu MK, Post KW, Zhu S, Janssen GCAM, Fogler MM, Basov DN. Edge and Surface Plasmons in Graphene Nanoribbons. Nano Lett 2015; 15:8271-8276. [PMID: 26571096 DOI: 10.1021/acs.nanolett.5b03834] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report on nano-infrared (IR) imaging studies of confined plasmon modes inside patterned graphene nanoribbons (GNRs) fabricated with high-quality chemical-vapor-deposited (CVD) graphene on Al2O3 substrates. The confined geometry of these ribbons leads to distinct mode patterns and strong field enhancement, both of which evolve systematically with the ribbon width. In addition, spectroscopic nanoimaging in the mid-infrared range 850-1450 cm(-1) allowed us to evaluate the effect of the substrate phonons on the plasmon damping. Furthermore, we observed edge plasmons: peculiar one-dimensional modes propagating strictly along the edges of our patterned graphene nanostructures.
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Affiliation(s)
- Z Fei
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
- Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - M D Goldflam
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - J-S Wu
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - S Dai
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - M Wagner
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - A S McLeod
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - M K Liu
- Department of Physics, Stony Brook University , Stony Brook, New York 11790, United States
| | - K W Post
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - S Zhu
- Department of Precision and Microsystems Engineering, Delft University of Technology , Mekelweg 2, 2628 CD Delft, Netherlands
| | - G C A M Janssen
- Department of Precision and Microsystems Engineering, Delft University of Technology , Mekelweg 2, 2628 CD Delft, Netherlands
| | - M M Fogler
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
| | - D N Basov
- Department of Physics, University of California, San Diego , La Jolla, California 92093, United States
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46
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Ladshaw AP, Das S, Liao WP, Yiacoumi S, Janke CJ, Mayes RT, Dai S, Tsouris C. Experiments and Modeling of Uranium Uptake by Amidoxime-Based Adsorbent in the Presence of Other Ions in Simulated Seawater. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03456] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. P. Ladshaw
- Georgia Institute of Technology, Atlanta, Georgia 30332-0355, United States
| | - S. Das
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6181, United States
| | - W.-P. Liao
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6181, United States
| | - S. Yiacoumi
- Georgia Institute of Technology, Atlanta, Georgia 30332-0355, United States
| | - C. J. Janke
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6181, United States
| | - R. T. Mayes
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6181, United States
| | - S. Dai
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6181, United States
| | - C. Tsouris
- Georgia Institute of Technology, Atlanta, Georgia 30332-0355, United States
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6181, United States
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47
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Affiliation(s)
- S. Das
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - Y. Oyola
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - R. T. Mayes
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - C. J. Janke
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - L.-J. Kuo
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - G. Gill
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - J. R. Wood
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - S. Dai
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
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48
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Affiliation(s)
- S. Das
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - Y. Oyola
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - Richard T. Mayes
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - Chris J. Janke
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - L.-J. Kuo
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - G. Gill
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - J. R. Wood
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - S. Dai
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
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49
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Das S, Liao WP, Flicker Byers M, Tsouris C, Janke CJ, Mayes RT, Schneider E, Kuo LJ, Wood JR, Gill GA, Dai S. Alternative Alkaline Conditioning of Amidoxime Based Adsorbent for Uranium Extraction from Seawater. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03210] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [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)
- S. Das
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - W.-P. Liao
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - M. Flicker Byers
- Nuclear
and Radiation Engineering Program, The University of Texas at Austin, University
Station C2200, Austin, Texas 78712, United States
| | - C. Tsouris
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - C. J. Janke
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - R. T. Mayes
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
| | - E. Schneider
- Nuclear
and Radiation Engineering Program, The University of Texas at Austin, University
Station C2200, Austin, Texas 78712, United States
| | - L.-J. Kuo
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - J. R. Wood
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - G. A. Gill
- Marine
Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United States
| | - S. Dai
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6053, United States
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50
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Shanmugasegaram S, Dai S, Waters C. INCIDENCE AND PREVALENCE OF ACUTE MYOCARDIAL INFARCTION IN CANADIAN PROVINCES AND TERRITORIES. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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