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Rong S, Li H, Wei Y, Feng Z, Gan L, Deng Z, Zhao L. [Zinc finger protein-36 deficiency inhibits osteogenic differentiation of mouse bone marrow-derived mesenchymal stem cells and preosteoblasts by activating the ERK/MAPK pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:697-705. [PMID: 38708503 DOI: 10.12122/j.issn.1673-4254.2024.04.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To explore the role of zinc finger protein 36(ZFP36) in regulating osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs) and preosteoblasts. METHODS ZFP36 expression was observed in primary mouse BMSCs and mouse preosteoblasts (MC3T3-E1 cells) during induced osteogenic differentiation. Zfp36-deficient cell models were constructed in the two cells using RNA interference technique and the changes in differentiation capacities of the transfected cells into osteoblasts were observed. Transcriptome sequencing was used to investigate the potential mechanisms of ZFP36 for regulating osteoblast differentiation of the two cells. U0126, a ERK/MAPK signal suppressor, was used to verify the regulatory mechanism of Zfp36 in osteogenic differentiation of Zfp36-deficient cells. RESULTS During the 14-day induction of osteogenic differentiation, both mouse BMSCs and MC3T3-E1 cells exhibited increased expression of ZFP36, and its mRNA expression reached the peak level on Day 7(P < 0.0001). The Zfp36-deficient cell models showed reduced intensity of alkaline phosphatase (ALP) staining and alizarin red staining with significantly lowered expressions of the osteogenic marker genes including Alpl, Sp7, Bglap and Ibsp (P < 0.01). Transcriptome sequencing verified the reduction of bone mineralization-related gene expressions in Zfp36-deficient cells and indicated the involvement of ERK signaling in the potential regulatory mechanism of Zfp36. Immunoblotting showed that pERK protein expression increased significantly in Zfp36-deficient cells compared with the control cells. In Zfp36-deficient MC3T3-E1 cells, inhibition of activated ERK/MAPK signaling with U0126 resulted in obviously enhanced ALP staining and significantly increased expressions of osteoblast differentiation markers Runx2 and Bglap (P < 0.05). CONCLUSIONS ZFP36 is involved in the regulation of osteoblast differentiation of mouse BMSCs and preosteoblasts, and ZFP36 deficiency causes inhibition of osteoblast differentiation of the cells by activating the ERK/MAPK signaling pathway.
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Affiliation(s)
- S Rong
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Li
- Beijing Yijiandian Clinic, Beijing 100033, China
- Health Management Center, Peking University International Hospital, Beijing 102206, China
| | - Y Wei
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Feng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Gan
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Deng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Zhao
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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He C, Li Y, Gan L, Lin Y, Zhang B, Ma L, Xue H. Notch signaling regulates Th17 cells differentiation through PI3K/AKT/mTORC1 pathway and involves in the thyroid injury of autoimmune thyroiditis. J Endocrinol Invest 2024:10.1007/s40618-023-02293-z. [PMID: 38285310 DOI: 10.1007/s40618-023-02293-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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 12/25/2023] [Indexed: 01/30/2024]
Abstract
PURPOSE Autoimmune Thyroiditis (AIT) is the most common thyroid disease; however, there were no measures to prevent the progression of the disease. The present study attempts to identify that Notch signaling regulates the differentiation of T helper 17 (Th17) cells by activating downstream Phosphatidylinositol-3 kinase/protein kinase/mechanistic target of rapamycin complex 1 (PI3K/AKT/mTORC1) pathway participating in the thyroid injury of the experimental autoimmune thyroiditis (EAT). METHODS In vivo experiments, mice were randomly divided into 4 groups: a control group, an EAT group, and two groups with LY294002 treatment (pTg plus 25 mg/kg or 50 mg/kg LY294002, respectively). The degrees of thyroiditis were evaluated, and the percentage of Th17 cells, expression of interleukin-17A (IL-17A), and the main components of the Notch-PI3K signaling pathway were detected in different groups. In vitro experiments, two different dosages of LY294002 (25 and 50 μM) were used to intervene splenic mononuclear cells (SMCs) from EAT mice to further evaluate the regulatory effect of Notch-PI3K pathway on Th17 cells. RESULTS Our data demonstrate that the infiltration of Th17 cells and the expressions of IL-17A, Notch, hairy and split 1 (Hes1), p‑AKT (Ser473), p‑AKT (Thr308), p‑mTOR (Ser2448), S6K1, and S6K2 increased remarkably in EAT mice. After PI3K pathway was blocked, the degrees of thyroiditis were significantly alleviated, and the proportion of Th17 cells, the expression of IL-17A, and the above Notch-PI3K pathway-related molecules decreased in a dose-dependent manner. Additionally, the proportion of Th17 cells was positively correlated with the concentration of serum thyroglobulin antibody (TgAb), IL-17A, and Notch-PI3K pathway-related molecules mRNA levels. CONCLUSIONS Notch signal promotes the secretion of IL-17A from Th17 cells by regulating the downstream PI3K/AKT/mTORC1 pathway through Hes-Phosphatase and tensin homolog (PTEN) and participates in thyroid autoimmune damage, and the PI3K pathway inhibitor may play important effects on AIT by affecting Th17 cells differentiation.
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Affiliation(s)
- C He
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, 256600, People's Republic of China
| | - Y Li
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, 256600, People's Republic of China
| | - L Gan
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, 256600, People's Republic of China
| | - Y Lin
- Department of Dermatology, Binzhou Medical University Hospital, Binzhou, 256600, People's Republic of China
| | - B Zhang
- Nanchang University Queen Mary School, Nanchang, 330031, People's Republic of China
| | - L Ma
- Department of Dermatology, Binzhou Medical University Hospital, Binzhou, 256600, People's Republic of China
| | - H Xue
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, 256600, People's Republic of China.
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Wang P, Li L, Gan L, Chen Q, Qiao H, Gao W, Zhang Y, Wang J. Andrographolide loaded montmorillonite attenuated enterotoxigenic Escherichia coli induced intestinal barrier injury and inflammation in a mouse model. Pol J Vet Sci 2023; 26:367-376. [PMID: 37727052 DOI: 10.24425/pjvs.2023.145042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Montmorillonite (MMT), a natural absorbent agent, has widely been accepted for its antidiarrhea function in human and farm animals; however, its specific physicochemical property limits its biological function in practical use. In the current study, raw MMT was loaded by andrographolide, namely andrographolide loaded montmorillonite (AGP-MMT). The microstructure of AGP-MMT was observed by scanning electron microscope (SEM) and X-ray diffraction (XRD). The effect of AGP-MMT on the growth performance, intestinal barrier and inflammation was investigated in an enterotoxigenic Escherichia coli (ETEC) challenged mice model. The results show that the microstructure of MMT was obviously changed after andrographolide modification: AGP-MMT exhibited a large number of spheroid particles, and floccule aggregates, but lower interplanar spacing compared with MMT. ETEC infection induced body weight losses and intestinal barrier function injury, as indicated by a lower villus height and ratio of villus height/crypt depth, whereas the serum levels of diamine oxidase (DAO), D-xylose and ETEC shedding were higher in the ETEC group compared with the CON group. Mice pretreated with AGP-MMT showed alleviated body weight losses and the intestinal barrier function injury induced by ETEC challenge. The villus height and the ratio of villus height/crypt depth, were higher in mice pretreated with AGP-MMT than those pretreated with equal levels of MMT. Pretreatment with AGP-MMT also alleviated the increased concentration of serum tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), and the corresponding genes in the jejunum induced by ETEC infection in mice. The protein and mRNA levels of IL-1β were lower in mice pretreated with AGP-MMT than those with equal levels of MMT. The results indicate that AGP-MMT was more effective in alleviating intestinal barrier injury and inflammation in mice with ETEC challenge than MMT.
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Affiliation(s)
- P Wang
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - L Li
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - L Gan
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - Q Chen
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - H Qiao
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - W Gao
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - Y Zhang
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
| | - J Wang
- College of Biology Engineering, Henan University of Technology, Zhengzhou, China
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Gao R, Liu Z, Liu Z, Su J, Gan L. Open-Cage Fullerene as a Macrocyclic Ligand for Na, Pt, and Rh Metal Complexes. J Am Chem Soc 2023; 145:18022-18028. [PMID: 37526598 DOI: 10.1021/jacs.3c05733] [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: 08/02/2023]
Abstract
An open-cage [60]fullerene derivative was prepared through Malaprade oxidation of a vicinal triol moiety as the key step. Above the 17-membered orifice, there is one carboxyl group. Three ketone carbonyl groups and one lactone carbonyl group are located on the rim of the orifice. The carboxylic and carbonyl oxygen atoms around the orifice act as strong polydentate ligands for a sodium ion. These oxygen atoms also react with [Rh(CO)2Cl]2 to form various isomeric rhodium complexes with comparable stability. The fullerene C═C bond on the rim of the orifice forms a stable platinum complex when treated with Pt(PPh3)4. Single crystal X-ray diffraction data reveal that one of the carboxylic oxygen atoms above the orifice forms a H-bond with the water molecule trapped in the cage.
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Affiliation(s)
- Rui Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Zhen Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Zeyu Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
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Angelopoulos V, Zhang XJ, Artemyev AV, Mourenas D, Tsai E, Wilkins C, Runov A, Liu J, Turner DL, Li W, Khurana K, Wirz RE, Sergeev VA, Meng X, Wu J, Hartinger MD, Raita T, Shen Y, An X, Shi X, Bashir MF, Shen X, Gan L, Qin M, Capannolo L, Ma Q, Russell CL, Masongsong EV, Caron R, He I, Iglesias L, Jha S, King J, Kumar S, Le K, Mao J, McDermott A, Nguyen K, Norris A, Palla A, Roosnovo A, Tam J, Xie E, Yap RC, Ye S, Young C, Adair LA, Shaffer C, Chung M, Cruce P, Lawson M, Leneman D, Allen M, Anderson M, Arreola-Zamora M, Artinger J, Asher J, Branchevsky D, Cliffe M, Colton K, Costello C, Depe D, Domae BW, Eldin S, Fitzgibbon L, Flemming A, Frederick DM, Gilbert A, Hesford B, Krieger R, Lian K, McKinney E, Miller JP, Pedersen C, Qu Z, Rozario R, Rubly M, Seaton R, Subramanian A, Sundin SR, Tan A, Thomlinson D, Turner W, Wing G, Wong C, Zarifian A. Energetic Electron Precipitation Driven by Electromagnetic Ion Cyclotron Waves from ELFIN's Low Altitude Perspective. Space Sci Rev 2023; 219:37. [PMID: 37448777 PMCID: PMC10335998 DOI: 10.1007/s11214-023-00984-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] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
We review comprehensive observations of electromagnetic ion cyclotron (EMIC) wave-driven energetic electron precipitation using data collected by the energetic electron detector on the Electron Losses and Fields InvestigatioN (ELFIN) mission, two polar-orbiting low-altitude spinning CubeSats, measuring 50-5000 keV electrons with good pitch-angle and energy resolution. EMIC wave-driven precipitation exhibits a distinct signature in energy-spectrograms of the precipitating-to-trapped flux ratio: peaks at >0.5 MeV which are abrupt (bursty) (lasting ∼17 s, or Δ L ∼ 0.56 ) with significant substructure (occasionally down to sub-second timescale). We attribute the bursty nature of the precipitation to the spatial extent and structuredness of the wave field at the equator. Multiple ELFIN passes over the same MLT sector allow us to study the spatial and temporal evolution of the EMIC wave - electron interaction region. Case studies employing conjugate ground-based or equatorial observations of the EMIC waves reveal that the energy of moderate and strong precipitation at ELFIN approximately agrees with theoretical expectations for cyclotron resonant interactions in a cold plasma. Using multiple years of ELFIN data uniformly distributed in local time, we assemble a statistical database of ∼50 events of strong EMIC wave-driven precipitation. Most reside at L ∼ 5 - 7 at dusk, while a smaller subset exists at L ∼ 8 - 12 at post-midnight. The energies of the peak-precipitation ratio and of the half-peak precipitation ratio (our proxy for the minimum resonance energy) exhibit an L -shell dependence in good agreement with theoretical estimates based on prior statistical observations of EMIC wave power spectra. The precipitation ratio's spectral shape for the most intense events has an exponential falloff away from the peak (i.e., on either side of ∼ 1.45 MeV). It too agrees well with quasi-linear diffusion theory based on prior statistics of wave spectra. It should be noted though that this diffusive treatment likely includes effects from nonlinear resonant interactions (especially at high energies) and nonresonant effects from sharp wave packet edges (at low energies). Sub-MeV electron precipitation observed concurrently with strong EMIC wave-driven >1 MeV precipitation has a spectral shape that is consistent with efficient pitch-angle scattering down to ∼ 200-300 keV by much less intense higher frequency EMIC waves at dusk (where such waves are most frequent). At ∼100 keV, whistler-mode chorus may be implicated in concurrent precipitation. These results confirm the critical role of EMIC waves in driving relativistic electron losses. Nonlinear effects may abound and require further investigation.
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Affiliation(s)
- V. Angelopoulos
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X.-J. Zhang
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: University of Texas at Dallas, Richardson, TX 75080 USA
| | - A. V. Artemyev
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | | | - E. Tsai
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - C. Wilkins
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - A. Runov
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - J. Liu
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Atmospheric and Oceanic Sciences Departments, University of California, Los Angeles, CA USA
| | - D. L. Turner
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland USA
| | - W. Li
- Atmospheric and Oceanic Sciences Departments, University of California, Los Angeles, CA USA
| | - K. Khurana
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - R. E. Wirz
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: School of Mechanical, Industrial, and Manufacturing Engineering, Oregon State University, Corvallis, OR 97331 USA
| | - V. A. Sergeev
- University of St. Petersburg, St. Petersburg, Russia
| | - X. Meng
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. Wu
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - M. D. Hartinger
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Space Science Institute, Boulder, CO 80301 USA
| | - T. Raita
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
| | - Y. Shen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X. An
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X. Shi
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - M. F. Bashir
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X. Shen
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - L. Gan
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - M. Qin
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - L. Capannolo
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - Q. Ma
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - C. L. Russell
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - E. V. Masongsong
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - R. Caron
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - I. He
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Materials Science and Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - L. Iglesias
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Deloitte Consulting, New York, NY 10112 USA
| | - S. Jha
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Microsoft, Redmond, WA 98052 USA
| | - J. King
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - S. Kumar
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Astronomy and Astrophysics, The University of Chicago, Chicago, IL 60637 USA
| | - K. Le
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Materials Science and Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - J. Mao
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Raybeam, Inc., Mountain View, CA 94041 USA
| | - A. McDermott
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - K. Nguyen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
| | - A. Norris
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - A. Palla
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Reliable Robotics Corporation, Mountain View, CA 94043 USA
| | - A. Roosnovo
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Los Alamos National Laboratory, Los Alamos, NM 87545 USA
| | - J. Tam
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - E. Xie
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Deloitte Consulting, New York, NY 10112 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - R. C. Yap
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Planet Labs, PBC, San Francisco, CA 94107 USA
| | - S. Ye
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - C. Young
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Microsoft, Redmond, WA 98052 USA
| | - L. A. Adair
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: KSAT, Inc., Denver, CO 80231 USA
| | - C. Shaffer
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Tyvak Nano-Satellite Systems, Inc., Irvine, CA 92618 USA
| | - M. Chung
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - P. Cruce
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Apple, Cupertino, CA 95014 USA
| | - M. Lawson
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - D. Leneman
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - M. Allen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Zipline International, South San Francisco, CA 94080 USA
| | - M. Anderson
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Lucid Motors, Newark, CA 94560 USA
| | - M. Arreola-Zamora
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - J. Artinger
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: College of Engineering and Computer Science, California State University, Fullerton, Fullerton, CA 92831 USA
| | - J. Asher
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
| | - D. Branchevsky
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - M. Cliffe
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - K. Colton
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Planet Labs, PBC, San Francisco, CA 94107 USA
| | - C. Costello
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Heliogen, Pasadena, CA 91103 USA
| | - D. Depe
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Argo AI, LLC, Pittsburgh, PA 15222 USA
| | - B. W. Domae
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - S. Eldin
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Microsoft, Redmond, WA 98052 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - L. Fitzgibbon
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Terran Orbital, Irvine, CA 92618 USA
| | - A. Flemming
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - D. M. Frederick
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Millenium Space Systems, El Segundo, CA 90245 USA
| | - A. Gilbert
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Electrical Engineering, Stanford University, Stanford, CA 94305 USA
| | - B. Hesford
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - R. Krieger
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Materials Science and Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Mercedes-Benz Research and Development North America, Long Beach, CA 90810 USA
| | - K. Lian
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
| | - E. McKinney
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Geosyntec Consultants, Inc., Costa Mesa, CA 92626 USA
| | - J. P. Miller
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Juniper Networks Sunnyvale, California, 94089 USA
| | - C. Pedersen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - Z. Qu
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Niantic Inc., San Francisco, CA 94111 USA
| | - R. Rozario
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
| | - M. Rubly
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Teledyne Scientific and Imaging, Thousand Oaks, CA 91360 USA
| | - R. Seaton
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - A. Subramanian
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - S. R. Sundin
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Naval Surface Warfare Center Corona Division, Norco, CA 92860 USA
| | - A. Tan
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Epirus Inc., Torrance, CA 90501 USA
| | - D. Thomlinson
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
| | - W. Turner
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Astronomy, Ohio State University, Columbus, OH 43210 USA
| | - G. Wing
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Amazon, Seattle, WA 98109 USA
| | - C. Wong
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Radiology, University of California, San Francisco, San Francisco, CA 94143 USA
| | - A. Zarifian
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
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6
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Peng YZ, Wang S, Gan L, Liu YS, Duan H. [Comparative analysis of clinical diagnosis application of two intrauterine adhesion scoring criteria]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:185-190. [PMID: 36935195 DOI: 10.3760/cma.j.cn112141-20221207-00743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Objective: To explore the similarities and differences of China Society of Gynecology Endoscopy (CSGE) and American Fertility Society (AFS) intrauterine adhesion (IUA) scoring criteria on IUA grading and their predictive value of reproductive prognosis. Methods: From January 2016 to January 2019, a total of 1 249 patients were diagnosed with IUA by hysteroscopy at Beijing Obstetrics and Gynecology Hospital. Totally, 378 patients with complete clinical data were enrolled, and the results diagnosed by CSGT and AFS scoring criteria were compared and analyzed.And follow-up for 2 years, the pregnancy rate and live birth rate were statistical analysis. Results: (1) The grade of IUA according to AFS and CSGE scoring criteria was less consistent (κ=0.295, P<0.001). Compared with AFS, the proportion of severe IUA cases diagnosed by CSGE was significantly lower [45.8% (173/378) vs 15.1% (57/378); RR=0.22, 95%CI: 0.15-0.30, P<0.01); the proportions of both mild and moderate IUA cases were significantly higher (RR=4.16, 95%CI: 2.38-7.14; RR=2.38, 95%CI: 1.75-3.23; both P<0.01). (2) The pregnancy rates of mild, moderate and severe IUA diagnosed according to CSGE were 11/13, 64.5% (147/228), 31.8% (7/22), live birth rates were 11/13, 54.8% (125/228) and 22.7% (5/22), respectively; there were statistically significant differences between the groups (all P<0.01). The pregnancy rates of mild, moderate and severe IUA diagnosed based on AFS were 3/3, 66.9% (97/145) and 56.5% (65/115), respectively, with no statistically significant difference between the groups (P>0.05). (3) IUA grades based on both CSGE and AFS criteria were significantly negatively correlated with pregnancy rates and live birth rates (CSGE: r=-0.210, r=-0.226; AFS: r=-0.130, r=-0.147; all P<0.05). Univariate logistic regression analysis showed that CSGE had higher OR for both pregnancy rates and live birth rates compared to AFS (3.889 vs 1.657, 3.983 vs 1.554, respectrvely). Conclusions: Compared with AFS, the IUA grade based on CSGE is better related with reproductive prognosis, suggesting that the CSGE standard might be more objective and comprehensive and has better predictive value for reproductive prognosis, thus avoiding overdiagnosis and overtreatment.
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Affiliation(s)
- Y Z Peng
- Gynecological Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100006, China
| | - S Wang
- Gynecological Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100006, China
| | - L Gan
- Gynecological Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100006, China
| | - Y S Liu
- Gynecological Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100006, China
| | - H Duan
- Gynecological Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100006, China
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7
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Gao R, Liu Z, Liu Z, Liang T, Su J, Gan L. Open-Cage Fullerene as a Selective Molecular Trap for LiF/[BeF] . Angew Chem Int Ed Engl 2023; 62:e202300151. [PMID: 36718977 DOI: 10.1002/anie.202300151] [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: 01/04/2023] [Revised: 01/30/2023] [Accepted: 01/30/2023] [Indexed: 02/01/2023]
Abstract
The insertion of ionic compounds into open-cage fullerenes is a challenging task due to the electropositive nature of the cavity. The present work reports the preparation of an open-cage C60 derivative with a hydroxy group pointing towards the centre of the cavity, which can coordinate to a metal cation, thus acting as a bait/hook to trap the metal cation such as the lithium cation in neutral LiF and the beryllium cation in the cationic [BeF]+ species. Other metal salts could not be inserted under similar conditions. The structure of MF in the cage was unambiguously determined by single-crystal X-ray diffraction. Owing to its tendency to undergo polycoordination, Li+ monomer salts have not been isolated before, despite extensive research on Li bonds. The present results provide a unique example of a Li bond.
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Affiliation(s)
- Rui Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zhen Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zeyu Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Tongling Liang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
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8
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Yap T, Gainor J, McKean M, Bockorny B, Barve M, Sweis R, Vaishampayan U, Tarhini A, Kilari D, Chand A, Abdul-Karim R, Park D, Babu S, Ju Y, Dewall S, Liu L, Kennedy A, Marantz J, Gan L. 1O Safety, pharmacokinetics, efficacy, and biomarker results of SRK-181 (a latent TGFβ1 inhibitor) from a phase I trial (DRAGON trial). ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.100967] [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: 04/05/2023] Open
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9
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Gao R, Liu Z, Liu Z, Liang T, Su J, Gan L. Open‐Cage Fullerene as a Selective Molecular Trap for LiF/[BeF]+. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202300151] [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: 02/03/2023]
Affiliation(s)
- Rui Gao
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Zhen Liu
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Zeyu Liu
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Tongling Liang
- Institute of Chemistry Chinese Academy of Sciences Chemistry CHINA
| | - Jie Su
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Liangbing Gan
- Peking University College of Chemistry and Molecular Engin Cheng Fu Lu 100871 Beijing CHINA
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10
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Liu X, Gao R, Liu Z, Ming J, Qiu Y, Su J, Gan L. Synthesis of Open‐cage Fullerene Derivatives Containing Multiple Hydroxyl and Amino Groups on the Rim of the Orifice. CHINESE J CHEM 2023. [DOI: 10.1002/cjoc.202200829] [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: 01/19/2023]
Affiliation(s)
- Xueli Liu
- Department of Chemistry College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 China
| | - Rui Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering Peking University Beijing 100871 People's Republic of China
| | - Zhen Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering Peking University Beijing 100871 People's Republic of China
| | - Jialin Ming
- Department of Chemistry College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 China
| | - Yi Qiu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering Peking University Beijing 100871 People's Republic of China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering Peking University Beijing 100871 People's Republic of China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering Peking University Beijing 100871 People's Republic of China
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11
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Sun S, Liu Z, Colombo F, Gao R, Yu Y, Qiu Y, Su J, Gan L. Open-Cage Fullerene as Molecular Container for F - , Cl - , Br - and I . Angew Chem Int Ed Engl 2022; 61:e202212090. [PMID: 36316627 DOI: 10.1002/anie.202212090] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 08/16/2022] [Indexed: 11/06/2022]
Abstract
A 19-membered open-cage fullerene derivative was prepared from C60 in 7 steps and 5.5 % yield through the peroxide-mediate pathway. There are four carbonyl groups, an ether oxygen and a quinoxaline moiety on the rim of the orifice. A chloride anion could be inserted into its cavity by heating with hydrochloric acid at 60 °C for 4 h. Encapsulation of fluoride, bromide and iodide anions was also achieved at slightly more forcing conditions, 90 °C for 14 h. Single crystal X-ray structures of the sodium salt of the chloride and the bromide encapsulated derivatives were obtained, which showed the halide anion in the center of the cavity and two sodium cations connecting two cages through coordination to the oxygen atoms on the rim of the orifices. The halide encapsulation ratio is quantitative in the isolated products.
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Affiliation(s)
- Shijun Sun
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, College of Chemistry, Xinjiang University, 830017, Urumqi, Xinjiang, P. R. China
| | - Zhen Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Francesca Colombo
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Rui Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Yuming Yu
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, College of Chemistry, Xinjiang University, 830017, Urumqi, Xinjiang, P. R. China
| | - Yi Qiu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
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12
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Sun S, Liu Z, Colombo F, Gao R, Yu Y, Qiu Y, Su J, Gan L. Open‐cage Fullerene as Molecular Container for F‐, Cl‐, Br‐ and I‐. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202212090] [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: 11/06/2022]
Affiliation(s)
- Shijun Sun
- Xinjiang University College of Chemistry CHINA
| | - Zhen Liu
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Francesca Colombo
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Rui Gao
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Yuming Yu
- Xinjiang University College of Chemistry CHINA
| | - Yi Qiu
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Jie Su
- Peking University College of Chemistry and molecular engnerring CHINA
| | - Liangbing Gan
- Peking University College of Chemistry and Molecular Engin Cheng Fu Lu 100871 Beijing CHINA
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13
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Gan L, Li XE, Lu Q, Zhang LC. [The prevalence and influence factors of work-related musculoskeletal disorders of dental nurse]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:756-760. [PMID: 36348557 DOI: 10.3760/cma.j.cn121094-20210830-00432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the prevalence and Influence factors of work-related musculoskeletal disorders (WMSDs) among dental nurses in tertiary stomatology hospitals. Methods: From June to July 2020, 1321 dental nurses from 18 tertiary stomatology hospitals in 18 provinces of China were enrolled as research subjects through a phased sampling method. The cross-sectional study was performed with validated instruments including the basic information questionnaire, Effort-Reward Imbalance Questionnaire, Nurse-Physician Collaboration Scale, and Chinese Musculoskeletal Questionnaire, so as to get the information about the social demography information, nursing-physician cooperation, work stress and the incidence of WMSDs. The influenang factors of WMSDs was analyzed. Results: The past prevalence, annual prevalence, and weekly prevalence of WMSDs were 80.8% (1067/1321) , 68.7% and 43.7% (575/1321) . 58.4% (771/1321) of nurses had WMSDs in three or more body parts. Neck (51.4%) , waist (42.2%) and shoulder (41.6%) were the top three body regions in the past year. The absenteeism rate due to musculoskeletal disorders ranged from 3.5% to 9.0%, waist (8.9%) and neck (8.0%) were the top two body regions. Working more than 40 hours per week (OR=1.74, P<0.001) and effect/reward>1 (OR=1.50, P=0.002) were risk factors of WMSDs (OR=1.74, 95% CI: 1.32~2.30; OR=1.50, 95%CI: 1.17~1.92, P<0.05) , while regular physical exercise every week (≥30 min per times) was the protective factor (OR=0.74, 95%CI: 0.56~0.97, P=0.030) . Conclusion: The prevalence rate of WMSDs of dental nurses in China was high, and most of the nurses suffered with many body parts. Thus, we should reduce controllable occupational stresso, ensuring adequate rest and strengthening physical exercise to reduce the incidence of WMSDs.
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Affiliation(s)
- L Gan
- Nursing Department of Peking University Stomatology Hospital, Beijing 100081, China
| | - X E Li
- Nursing Department of Peking University Stomatology Hospital, Beijing 100081, China
| | - Q Lu
- Peking University Health Science Center School of Nursing, Beijing 100191, China
| | - L C Zhang
- Peking University Health Science Center School of Nursing, Beijing 100191, China
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14
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Ohl K, Subramanyam SH, Verjans E, Clarner T, Böll S, Costa Filho IG, Li Z, Gan L, Schmitt E, Bopp T, Wagner N, Schulz S, Goodarzi T, Scheld M, Floess S, Huehn J, Lambrecht B, Beyaert R, Look T, Zenke M, Tenbrock K. Foxp3-specific deletion of CREB generates ST-2 positive regulatory
T-cells with shifts towards type 2 immune responses. Klinische Pädiatrie 2022. [DOI: 10.1055/s-0042-1754516] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- K Ohl
- RWTH Aachen, Pediatrics, Aachen, Germany
| | | | - E Verjans
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - T Clarner
- RWTH Aachen, Anatomy, Aachen, Germany
| | - S Böll
- RWTH Aachen, Pediatrics, Aachen, Germany
| | | | - Z Li
- RWTH Aachen, Computational Genomics, Aachen, Germany
| | - L Gan
- RWTH Aachen, Computational Genomics, Aachen, Germany
| | - E Schmitt
- Institut für Immunologie, Universität Mainz, Mainz,
Germany
| | - T Bopp
- Institut für Immunologie, Universität Mainz, Mainz,
Germany
| | - N Wagner
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - S Schulz
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - T Goodarzi
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - M Scheld
- RWTH Aachen, Anatomy, Aachen, Germany
| | | | | | | | | | - T Look
- RWTH Aachen, Zellbiologie, Aachen, Germany
| | - M Zenke
- RWTH Aachen, Zellbiologie, Aachen, Germany
| | - K Tenbrock
- RWTH Aachen, Pediatrics, Aachen, Germany
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15
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Jiang G, He J, Gan L, Li X, Tian Y. Optimization of Exopolysaccharides Production by Lactiplantibacillus pentosus B8 Isolated from Sichuan PAOCAI and Its Functional Properties. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822020107] [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: 11/23/2022]
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16
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Ding J, Duan Y, Wang M, Yuan Y, Zhuo Z, Gan L, Song Q, Gao B, Yang L, Liu H, Hou Y, Zheng F, Chen R, Wang J, Lin L, Zhang B, Zhang G, Liu Y. Acceleration of Brain Susceptibility-Weighted Imaging with Compressed Sensitivity Encoding: A Prospective Multicenter Study. AJNR Am J Neuroradiol 2022; 43:402-409. [PMID: 35241421 PMCID: PMC8910792 DOI: 10.3174/ajnr.a7441] [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: 08/11/2021] [Accepted: 10/17/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE While three-dimensional susceptibility-weighted imaging has been widely suggested for intracranial vessel imaging, hemorrhage detection, and other neuro-diseases, its relatively long scan time has necessitated the clinical verification of recent progresses of fast imaging techniques. Our aim was to evaluate the effectiveness of brain SWI accelerated by compressed sensitivity encoding to identify the optimal acceleration factors for clinical practice. MATERIALS AND METHODS Ninety-nine subjects, prospectively enrolled from 5 centers, underwent 8 brain SWI sequences: 5 different folds of compressed sensitivity encoding acceleration (CS2, CS4, CS6, CS8, and CS10), 2 different folds of sensitivity encoding acceleration (SF2 and SF4), and 1 without acceleration. Images were assessed quantitatively on both the SNR of the red nucleus and its contrast ratio to the CSF and, subjectively, with scoring on overall image quality; visibility of the substantia nigra-red nucleus, basilar artery, and internal cerebral vein; and diagnostic confidence of the cerebral microbleeds and other intracranial diseases. RESULTS Compressed sensitivity encoding showed a promising ability to reduce the acquisition time (from 202 to 41 seconds) of SWI while increasing the acceleration factor from 2 to 10, though at the cost of decreasing the SNR, contrast ratio, and the scores of visual assessments. The visibility of the substantia nigra-red nucleus and internal cerebral vein became unacceptable in CS6 to CS10. The basilar artery was well-distinguished, and diseases including cerebral microbleeds, cavernous angiomas, intracranial gliomas, venous malformations, and subacute hemorrhage were well-diagnosed in all compressed sensitivity encoding sequences. CONCLUSIONS Compressed sensitivity encoding factor 4 is recommended in routine practice. Compressed sensitivity encoding factor 10 is potentially a fast surrogate for distinguishing the basilar artery and detecting susceptibility-related abnormalities (eg, cerebral microbleeds, cavernous angiomas, gliomas, and venous malformation) at the sacrifice of visualization of the substantia nigra-red nucleus and internal cerebral vein.
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Affiliation(s)
- J. Ding
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Y. Duan
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - M. Wang
- Department of Radiology (M.W., B.Z.), The Affiliated Drum Tower Hospital of Nanjing UniversityMedical School, Jiangsu, China
| | - Y. Yuan
- Department of Radiology (Y.Y., G.Z.), Beijing Royal Integrative Medicine Hospital, Beijing, China
| | - Z. Zhuo
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - L. Gan
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Q. Song
- Department of Radiology (Q.S., B.G.), First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - B. Gao
- Department of Radiology (Q.S., B.G.), First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - L. Yang
- Department of Radiology (L.Y., H.L., Y.H.), Shengjing Hospital of ChinaMedical University, Shenyang, China
| | - H. Liu
- Department of Radiology (L.Y., H.L., Y.H.), Shengjing Hospital of ChinaMedical University, Shenyang, China
| | - Y. Hou
- Department of Radiology (L.Y., H.L., Y.H.), Shengjing Hospital of ChinaMedical University, Shenyang, China
| | - F. Zheng
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - R. Chen
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - J. Wang
- Philips Healthcare (J.W., L.L.), Beijing, China
| | - L. Lin
- Philips Healthcare (J.W., L.L.), Beijing, China
| | - B. Zhang
- Department of Radiology (M.W., B.Z.), The Affiliated Drum Tower Hospital of Nanjing UniversityMedical School, Jiangsu, China
| | - G. Zhang
- Department of Radiology (Y.Y., G.Z.), Beijing Royal Integrative Medicine Hospital, Beijing, China
| | - Y. Liu
- From the Department of Radiology (J.D., Y.D., Z.Z., L.G., F.Z., R.C., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Liu Z, Liu Z, Gao R, Su J, Qiu Y, Gan L. Preparation of π-extended fullerene derivatives through addition of phenylenediamine to open-cage fullerene derivatives. Org Chem Front 2022. [DOI: 10.1039/d1qo01593a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Open-cage fullerenes with a quinoxaline moiety on the rim of the orifice showed evident π-system extension effect on the NMR and UV-Vis spectra.
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Affiliation(s)
- Zeyu Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhen Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Rui Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yi Qiu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Liu Z, Gao R, Liu Z, Xia Z, Liu X, Ming J, Wang X, Su J, Gan L. Synthesis of Open‐Cage Fullerenes with Pyrrole, Pyrrolone, Pyridinone, Iminofuran, and Pyranone Fragments Embedded on the Rim of the Orifice. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100908] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhen Liu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Rui Gao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Zeyu Liu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Zongpu Xia
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Xueli Liu
- Department of Chemistry College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 China
| | - Jialin Ming
- Department of Chemistry College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 China
| | - Xiaoge Wang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
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Li K, Feng J, Yuan X, Gan L, Lu Z, Xiong R. Study on a new manner of the magnetization switching actuated by a unidirectional pulse current. Nanotechnology 2021; 33:025001. [PMID: 34614479 DOI: 10.1088/1361-6528/ac2d48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
A new writing scheme with a unidirectional pulse current is proposed for spin transfer torque (STT) based magnetic random-access memory (MRAM). To investigate the feasibility of the writing scheme, bilayered nano-pillars composed of a soft layer with small in-plane shape anisotropy and a hard layer with either large perpendicular anisotropy (PMA) or in-plane anisotropy (IMA) are designed and their switching behaviors are studied. It is found that in either type of bilayered nano-pillars, with the aid of the attached hard layer, the magnetization of the soft layer can be switched back and forth under a unidirectional pulse current. In an IMA/IMA nano-pillar, the magnetization of the free layer (FL) can achieve excellent alignment, which is in contrast to the IMA/PMA nano-pillar. By optimizing the dimensions and magnetic parameters of the IMA/IMA nano-pillar, a decently low switching current density (4.3 × 1011A m-2) and ultrashort switching time (<1 ns) can be reached. Based on these results, the unidirectional writing scheme is practical if an IMA/IMA bilayer is used to replace the FL in a magnetic tunnel junction. Considering that a unidirectional writing scheme can enable the application of materials with high spin polarization such as half metals, and avoid the injection of writing current into junction using a special design, it may be very promising for STT-MRAM.
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Affiliation(s)
- K Li
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - J Feng
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - X Yuan
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - L Gan
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Z Lu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - R Xiong
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
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20
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Chen N, Wu H, Deng Z, Liao Z, Feng S, Luo Z, Chu Y, Qiu G, Li X, Jin Y, Rong S, Wang F, Gan L, Chen R, Zhao L. [An optimized protocol of meniscus cell extraction for single-cell RNA sequencing]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1310-1318. [PMID: 34658344 DOI: 10.12122/j.issn.1673-4254.2021.09.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To optimize the protocol of meniscus cell extraction to enhance the efficiency of cell suspension preparation and maintain a high cell viability for single-cell RNA sequencing. METHODS We compared the efficiency of the routine cell extraction methods (short-time digestion and long-time digestion) and the optimized protocol for obtaining meniscus cell suspensions by evaluating the cell number obtained and the cell viability. Single-cell RNA sequencing datasets were analyzed to evaluate the stability of the cell suspension prepared using the optimized protocol. The reliability of the optimized protocol was assessed by comparing the single-cell RNA sequencing dataset obtained by the optimized protocol with published single-cell RNA sequencing datasets of the meniscus. RESULTS The optimized protocol harvested a greater number of cells (over 1×105) than the routine protocols. The cell suspension prepared with the optimized protocol showed a cell viability higher than 80%, the highest among the 3 methods. Analysis of single-cell RNA sequencing datasets showed that the ratio of the mitochondrial genes was below 20% in over 80% of the cells. CD34+ cells, MCAM+ cells and COL1A1+ cells were identified in the datasets. Comparison with the publish datasets showed that the optimized protocol was capable of harvesting COL3A1+, COL1A1+, MYLK+, BMP2+, CD93+ and CDK1+ cells. CONCLUSION Single-cell suspension prepared from the meniscus can be stably obtained using the optimized protocol for single-cell RNA sequencing using the 10× Genomics platform.
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Affiliation(s)
- N Chen
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Wu
- Zhujiang Hospital, Southern Medical University, Guangzhou 510080, China
| | - Z Deng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Liao
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Feng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Luo
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y Chu
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - G Qiu
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Li
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y Jin
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Rong
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - F Wang
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Gan
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Chen
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Zhao
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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21
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Zhang H, Gao R, Liu Z, Wang X, Su J, Gan L. Selective Nitration of Open‐Cage [60]Fullerene Derivatives by Ponzio Reaction. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100557] [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)
- Hao Zhang
- Department Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Rui Gao
- Department Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Zhen Liu
- Department Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Xiaoge Wang
- Department Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Jie Su
- Department Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Liangbing Gan
- Department Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
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22
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Wang H, Cai C, Gan L, Wang S, Tian Y. Expression and Characterization of Surfactnt-Stable Calcium-Dependent Protease: a Potential Additive for Laundry Detergents. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821040165] [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: 11/23/2022]
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23
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An P, Wang Y, Zhou SF, Xie MY, Gan L, He QY, Zeng H, Yuan W. New teaching method for prenatal cardiac screening: vascular and tracheal model. Ultrasound Obstet Gynecol 2021; 58:139-141. [PMID: 32672381 DOI: 10.1002/uog.22154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Affiliation(s)
- P An
- Department of Medical Imaging, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
| | - Y Wang
- Department of Medical Imaging, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
- Department of Internal Medicine and Public Health, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - S F Zhou
- Department of Cardiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - M Y Xie
- Department of Internal Medicine and Public Health, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - L Gan
- Department of Medical Imaging, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
- Department of Obstetrics and Gynecology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - Q Y He
- Anatomy Laboratory, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - H Zeng
- Anatomy Laboratory, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - W Yuan
- Anatomy Laboratory, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
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24
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Delarbre D, Gan L, Antoine C, Poisnel E, Cambon A, Dutasta F, Paris JF, Simon F, Defuentes G. [Diagnostic issues of Whipple's disease during chronic inflammatory rheumatism: About three cases]. Rev Med Interne 2021; 42:801-804. [PMID: 34218934 DOI: 10.1016/j.revmed.2021.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Whipple's disease (WD) can mimic chronic inflammatory rheumatism leading to incorrect prescription of tumor necrosis factor inhibitors (TNFI). Several complicated cases of WD have been reported during TNFI treatment which is strongly suspected to modify the host-pathogen relationship. Tropheryma whipplei asymptomatic carriage is high in the general population, making the diagnosis of WD more difficult face to unexplained arthritis. OBSERVATIONS We report three observations that illustrate situations for which the detection of T. whipplei might be valuable to investigate the differential diagnosis of inflammatory rheumatism. CONCLUSION The decision to check for T. whipplei infection should rely on individual clinical assessment. It should be considered in the absence of clinical response or in case of worsening of an inflammatory rheumatism under TNFI treatment, especially in front of atypical features. A systematic screening for T. whipplei before anti-TNF treatment seems unjustified since asymptomatic carriers are frequent.
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Affiliation(s)
- D Delarbre
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France.
| | - L Gan
- Service de pathologie digestive, Hôpital d'instruction des armées Sainte-Anne, 1 boulevard Sainte-Anne, 83000 Toulon, France
| | - C Antoine
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France
| | - E Poisnel
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France
| | - A Cambon
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France
| | - F Dutasta
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France
| | - J F Paris
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France
| | - F Simon
- CEO & directeur scientifique, RISK&VIR, France; Inserm-IRD-Aix Marseille université, unité des virus émergents, France
| | - G Defuentes
- Service de médecine interne, Hôpital d'instruction des armées Sainte-Anne, 1, boulevard Sainte Anne, 83000 Toulon, France
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Li H, Cui D, Zheng L, Zhou Y, Gan L, Liu Y, Pan Y, Zhou X, Wan M. Bisphenol A Exposure Disrupts Enamel Formation via EZH2-Mediated H3K27me3. J Dent Res 2021; 100:847-857. [PMID: 33655795 DOI: 10.1177/0022034521995798] [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] [Indexed: 02/05/2023] Open
Abstract
Enamel formation is a serial and complex biological process, during which related genes are expressed progressively in a spatiotemporal manner. This process is vulnerable to environmental cues, resulting in developmental defects of enamel (DDE). However, how environmental factors are biologically integrated during enamel formation is still poorly understood. Here, we investigated the mechanism of DDE elicited by a model endocrine-disrupting chemical, bisphenol A (BPA), in mouse incisors. We show that BPA exposure leads to DDE in mouse incisors, as well as excessive proliferation in dental epithelial stem/progenitor cells. Western blotting, chromatin immunoprecipitation sequencing, and immunofluorescence staining revealed that this effect was accompanied by upregulation of a repressive mark, H3K27me3, in the labial cervical loop of mouse incisors. Perturbation of H3K27me3 methyltransferase EZH2 repressed the level of H3K27me3 and partially attenuated the excessive proliferation in dental epithelial stem/progenitor cells and DDE induced by BPA exposure. Overall, our results demonstrate the essential role of repressive histone modification H3K27me3 in DDE elicited by exposure to an endocrine-disrupting chemical.
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Affiliation(s)
- H Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - D Cui
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - L Zheng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - L Gan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Liu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Pan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - M Wan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Abstract
Background Keeping and improving work engagement among physicians fighting COVID-19 is important to healthy medical systems. In line with the job demands-resources model, optimism was expected to positively relate with job resources, leading to higher work engagement. However, the underlying mechanism between optimism, autonomy and work engagement has not been explored. Aims To examine whether optimism has a positive impact on work engagement via autonomy among physicians fighting COVID-19 in China. Methods This study was conducted among physicians in March 2020. A convenience sample was used to recruit physicians from the Wuhan Leishenshan Hospital and Wuhan Jinyintan Hospital. One hundred and four Chinese physicians working in the COVID-19 epidemic completed a survey measuring levels of autonomy, optimism and work engagement. The PROCESS macro (model 4) was used to test hypotheses about mediation. Results This current study found that optimism was related to increased autonomy, and autonomy was related to increased work engagement. The results of the bias-corrected bootstrap method suggested the indirect effect of optimism on work engagement via autonomy (Effect = 0.16, SE = 0.08, lower level confidence interval = 0.04, upper level confidence interval = 0.37), indicating a mediated relationship, in which autonomy is one mechanism to explain the link between optimism and increased work engagement. Conclusions This study follows an observational design, with in-depth analysis of the relationship between optimism, autonomy and work engagement. When management implements strategies to improve work engagement among physicians working in the COVID-19 epidemic, the mediating impact of autonomy on the association between optimism and work engagement should be considered.
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Affiliation(s)
- H Zhang
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Y Zhao
- Department of Nursing, Hubei No. 3 People's Hospital of Jianghan University, Wuhan, China
| | - P Zou
- School of Nursing, Nipissing University, Toronto, Ontario, Canada
| | - Y Liu
- Wuhan Jinyintan Hospital, Wuhan, China
| | - L Gan
- Department of Nursing, Hubei No. 3 People's Hospital of Jianghan University, Wuhan, China
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An P, Ye YJ, Li QX, Liu B, Lian K, Yin JB, Hao JZ, Zhou S, Gan L. Medical disputes in relation to prenatal ultrasound in China. Ultrasound Obstet Gynecol 2020; 56:11-14. [PMID: 32608569 DOI: 10.1002/uog.22020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 06/11/2023]
Affiliation(s)
- P An
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
| | - Y-J Ye
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
- Department of Internal Medicine and Public Health, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - Q-X Li
- Department of Internal Medicine and Public Health, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - B Liu
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
- Department of Internal Medicine and Public Health, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - K Lian
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
- Department of Internal Medicine and Public Health, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Hubei, China
| | - J-B Yin
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
| | - J-Z Hao
- China Fair Judicial Appraisal Center, Xiangyang, Hubei, China
| | - S Zhou
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
| | - L Gan
- Second Department of Ultrasound and Radiology, Xiangyang No. 1 People's Hospital Affiliated to Hubei University of Medicine, Xiangyang Key Laboratory of Maternal-Fetal Medicine in Fetal Heart Disease, Hubei, China
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Larin I, Zhang Y, Gasparian A, Gan L, Miskimen R, Khandaker M, Dale D, Danagoulian S, Pasyuk E, Gao H, Ahmidouch A, Ambrozewicz P, Baturin V, Burkert V, Clinton E, Deur A, Dolgolenko A, Dutta D, Fedotov G, Feng J, Gevorkyan S, Glamazdin A, Guo L, Isupov E, Ito MM, Klein F, Kowalski S, Kubarovsky A, Kubarovsky V, Lawrence D, Lu H, Ma L, Matveev V, Morrison B, Micherdzinska A, Nakagawa I, Park K, Pedroni R, Phelps W, Protopopescu D, Rimal D, Romanov D, Salgado C, Shahinyan A, Sober D, Stepanyan S, Tarasov VV, Taylor S, Vasiliev A, Wood M, Ye L, Zihlmann B. Precision measurement of the neutral pion lifetime. Science 2020; 368:506-509. [PMID: 32355026 DOI: 10.1126/science.aay6641] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 03/30/2020] [Indexed: 11/02/2022]
Abstract
The explicit breaking of the axial symmetry by quantum fluctuations gives rise to the so-called axial anomaly. This phenomenon is solely responsible for the decay of the neutral pion π0 into two photons (γγ), leading to its unusually short lifetime. We precisely measured the decay width Γ of the [Formula: see text] process. The differential cross sections for π0 photoproduction at forward angles were measured on two targets, carbon-12 and silicon-28, yielding [Formula: see text], where stat. denotes the statistical uncertainty and syst. the systematic uncertainty. We combined the results of this and an earlier experiment to generate a weighted average of [Formula: see text] Our final result has a total uncertainty of 1.50% and confirms the prediction based on the chiral anomaly in quantum chromodynamics.
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Affiliation(s)
- I Larin
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia.,Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - Y Zhang
- Department of Physics, Duke University, Durham, NC 27708, USA.,Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA
| | - A Gasparian
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - L Gan
- Department of Physics and Physical Oceanography, University of North Carolina Wilmington, Wilmington, NC 28403, USA
| | - R Miskimen
- Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - M Khandaker
- Department of Physics, Norfolk State University, Norfolk, VA 23504, USA
| | - D Dale
- Department of Physics and Nuclear Engineering, Idaho State University, Pocatello, ID 83209, USA
| | - S Danagoulian
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - H Gao
- Department of Physics, Duke University, Durham, NC 27708, USA.,Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA
| | - A Ahmidouch
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - P Ambrozewicz
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - V Baturin
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - V Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - E Clinton
- Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - A Dolgolenko
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia
| | - D Dutta
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, MS 39762, USA
| | - G Fedotov
- Department of Physics, Moscow State University, Moscow 119991, Russia.,B. P. Konstantinov Petersburg Nuclear Physics Institute, NRC "Kurchatov Institute," Gatchina, St. Petersburg, 188300, Russia
| | - J Feng
- Department of Physics and Physical Oceanography, University of North Carolina Wilmington, Wilmington, NC 28403, USA
| | - S Gevorkyan
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
| | - A Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov, 310108, Ukraine
| | - L Guo
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - E Isupov
- Department of Physics, Moscow State University, Moscow 119991, Russia
| | - M M Ito
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - F Klein
- Department of Physics, The Catholic University of America, Washington, DC 20064, USA
| | - S Kowalski
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - A Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - D Lawrence
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - H Lu
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - L Ma
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - V Matveev
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia
| | - B Morrison
- Department of Physics, Arizona State University, Tempe, AZ 85281, USA
| | - A Micherdzinska
- Department of Physics, George Washington University, Washington, DC 20064, USA
| | - I Nakagawa
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - K Park
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - R Pedroni
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - W Phelps
- Department of Physics, Computer Science and Engineering, Christopher Newport University, Newport News, VA 23606, USA
| | - D Protopopescu
- School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
| | - D Rimal
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - D Romanov
- Department of Physics, Moscow Engineering Physics Institute, Moscow, Russia
| | - C Salgado
- Department of Physics, Norfolk State University, Norfolk, VA 23504, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 0036, Armenia
| | - D Sober
- Department of Physics, The Catholic University of America, Washington, DC 20064, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - V V Tarasov
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia
| | - S Taylor
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - A Vasiliev
- Institute for High Energy Physics, NRC "Kurchatov Institute," Protvino, 142281, Russia
| | - M Wood
- Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - L Ye
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, MS 39762, USA
| | - B Zihlmann
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
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Xu Z, Tian J, Gan L, Tian Y. Discovery of the Endophytic Fungi from Polygonum cuspidatum and Biotransformation of Resveratrol to Pterostillbene by the Endophyte Penicillium sp. F5. APPL BIOCHEM MICRO+ 2020. [DOI: 10.1134/s0003683820030163] [Citation(s) in RCA: 3] [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: 11/23/2022]
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Xu D, Yang D, Su J, Gan L. Synthesis of Open-Cage [60]Fullerenes with Five Carbonyl Groups on the Rim of the 15-Membered Orifice. Chempluschem 2020; 84:608-612. [PMID: 31944004 DOI: 10.1002/cplu.201900017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 01/25/2019] [Indexed: 11/11/2022]
Abstract
A new type of open-cage [60]fullerene was prepared starting from our previously reported open-cage [60]fullerenes containing hydroxy and tert-butylperoxo groups, and an iminofuranone moiety on the rim of the orifice. The key reactions are alcoholysis with MeOH/PCl5 and reductive aromatization with SnCl2 or HI (aq). The resulting open-cage compound contains two ketone carbonyls, two amide carbonyls, and one ester carbonyl group. The X-ray crystal structure of the precursor compound shows that the 18-membered orifice is almost completely blocked because of the presence of the amide group directly above the orifice.
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Affiliation(s)
- Dan Xu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry, and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Dazhi Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry, and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry, and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry, and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 200032, P. R. China
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31
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Zewdie E, Ciechanski P, Kuo HC, Giuffre A, Kahl C, King R, Cole L, Godfrey H, Seeger T, Swansburg R, Damji O, Rajapakse T, Hodge J, Nelson S, Selby B, Gan L, Jadavji Z, Larson JR, MacMaster F, Yang JF, Barlow K, Gorassini M, Brunton K, Kirton A. Safety and tolerability of transcranial magnetic and direct current stimulation in children: Prospective single center evidence from 3.5 million stimulations. Brain Stimul 2019; 13:565-575. [PMID: 32289678 DOI: 10.1016/j.brs.2019.12.025] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/20/2019] [Accepted: 12/23/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Non-invasive brain stimulation is being increasingly used to interrogate neurophysiology and modulate brain function. Despite the high scientific and therapeutic potential of non-invasive brain stimulation, experience in the developing brain has been limited. OBJECTIVE To determine the safety and tolerability of non-invasive neurostimulation in children across diverse modalities of stimulation and pediatric populations. METHODS A non-invasive brain stimulation program was established in 2008 at our pediatric, academic institution. Multi-disciplinary neurophysiological studies included single- and paired-pulse Transcranial Magnetic Stimulation (TMS) methods. Motor mapping employed robotic TMS. Interventional trials included repetitive TMS (rTMS) and transcranial direct current stimulation (tDCS). Standardized safety and tolerability measures were completed prospectively by all participants. RESULTS Over 10 years, 384 children underwent brain stimulation (median 13 years, range 0.8-18.0). Populations included typical development (n = 118), perinatal stroke/cerebral palsy (n = 101), mild traumatic brain injury (n = 121) neuropsychiatric disorders (n = 37), and other (n = 7). No serious adverse events occurred. Drop-outs were rare (<1%). No seizures were reported despite >100 participants having brain injuries and/or epilepsy. Tolerability between single and paired-pulse TMS (542340 stimulations) and rTMS (3.0 million stimulations) was comparable and favourable. TMS-related headache was more common in perinatal stroke (40%) than healthy participants (13%) but was mild and self-limiting. Tolerability improved over time with side-effect frequency decreasing by >50%. Robotic TMS motor mapping was well-tolerated though neck pain was more common than with manual TMS (33% vs 3%). Across 612 tDCS sessions including 92 children, tolerability was favourable with mild itching/tingling reported in 37%. CONCLUSIONS Standard non-invasive brain stimulation paradigms are safe and well-tolerated in children and should be considered minimal risk. Advancement of applications in the developing brain are warranted. A new and improved pediatric NIBS safety and tolerability form is included.
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Affiliation(s)
- E Zewdie
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - P Ciechanski
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - H C Kuo
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - A Giuffre
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - C Kahl
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R King
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - L Cole
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - H Godfrey
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - T Seeger
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R Swansburg
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - O Damji
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - T Rajapakse
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - J Hodge
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - S Nelson
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - B Selby
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - L Gan
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Z Jadavji
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - J R Larson
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - F MacMaster
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - J F Yang
- Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada
| | - K Barlow
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - M Gorassini
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - K Brunton
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - A Kirton
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Zhou Z, Han H, Chen Z, Gao R, Liu Z, Su J, Xin N, Yang X, Gan L. Concise Synthesis of Open‐Cage Fullerenes for Oxygen Delivery. Angew Chem Int Ed Engl 2019; 58:17690-17694. [DOI: 10.1002/anie.201911631] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Zishuo Zhou
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Hongfei Han
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Zijing Chen
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Rui Gao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Zhen Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Jie Su
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Nana Xin
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Xiaobing Yang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry Shanghai 200032 China
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33
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Xiong W, Gasparian A, Gao H, Dutta D, Khandaker M, Liyanage N, Pasyuk E, Peng C, Bai X, Ye L, Gnanvo K, Gu C, Levillain M, Yan X, Higinbotham DW, Meziane M, Ye Z, Adhikari K, Aljawrneh B, Bhatt H, Bhetuwal D, Brock J, Burkert V, Carlin C, Deur A, Di D, Dunne J, Ekanayaka P, El-Fassi L, Emmich B, Gan L, Glamazdin O, Kabir ML, Karki A, Keith C, Kowalski S, Lagerquist V, Larin I, Liu T, Liyanage A, Maxwell J, Meekins D, Nazeer SJ, Nelyubin V, Nguyen H, Pedroni R, Perdrisat C, Pierce J, Punjabi V, Shabestari M, Shahinyan A, Silwal R, Stepanyan S, Subedi A, Tarasov VV, Ton N, Zhang Y, Zhao ZW. A small proton charge radius from an electron-proton scattering experiment. Nature 2019; 575:147-150. [PMID: 31695211 DOI: 10.1038/s41586-019-1721-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/19/2019] [Indexed: 11/09/2022]
Abstract
Elastic electron-proton scattering (e-p) and the spectroscopy of hydrogen atoms are the two methods traditionally used to determine the proton charge radius, rp. In 2010, a new method using muonic hydrogen atoms1 found a substantial discrepancy compared with previous results2, which became known as the 'proton radius puzzle'. Despite experimental and theoretical efforts, the puzzle remains unresolved. In fact, there is a discrepancy between the two most recent spectroscopic measurements conducted on ordinary hydrogen3,4. Here we report on the proton charge radius experiment at Jefferson Laboratory (PRad), a high-precision e-p experiment that was established after the discrepancy was identified. We used a magnetic-spectrometer-free method along with a windowless hydrogen gas target, which overcame several limitations of previous e-p experiments and enabled measurements at very small forward-scattering angles. Our result, rp = 0.831 ± 0.007stat ± 0.012syst femtometres, is smaller than the most recent high-precision e-p measurement5 and 2.7 standard deviations smaller than the average of all e-p experimental results6. The smaller rp we have now measured supports the value found by two previous muonic hydrogen experiments1,7. In addition, our finding agrees with the revised value (announced in 2019) for the Rydberg constant8-one of the most accurately evaluated fundamental constants in physics.
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Affiliation(s)
- W Xiong
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - A Gasparian
- North Carolina A&T State University, Greensboro, NC, USA.
| | - H Gao
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - D Dutta
- Mississippi State University, Mississippi State, MS, USA.
| | | | - N Liyanage
- University of Virginia, Charlottesville, VA, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - C Peng
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - X Bai
- University of Virginia, Charlottesville, VA, USA
| | - L Ye
- Mississippi State University, Mississippi State, MS, USA
| | - K Gnanvo
- University of Virginia, Charlottesville, VA, USA
| | - C Gu
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - M Levillain
- North Carolina A&T State University, Greensboro, NC, USA
| | - X Yan
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - M Meziane
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - Z Ye
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA.,Argonne National Laboratory, Lemont, IL, USA
| | - K Adhikari
- Mississippi State University, Mississippi State, MS, USA
| | - B Aljawrneh
- North Carolina A&T State University, Greensboro, NC, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, MS, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi State, MS, USA
| | - J Brock
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - V Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - C Carlin
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - D Di
- University of Virginia, Charlottesville, VA, USA
| | - J Dunne
- Mississippi State University, Mississippi State, MS, USA
| | - P Ekanayaka
- Mississippi State University, Mississippi State, MS, USA
| | - L El-Fassi
- Mississippi State University, Mississippi State, MS, USA
| | - B Emmich
- Mississippi State University, Mississippi State, MS, USA
| | - L Gan
- University of North Carolina, Wilmington, NC, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov, Ukraine
| | - M L Kabir
- Mississippi State University, Mississippi State, MS, USA
| | - A Karki
- Mississippi State University, Mississippi State, MS, USA
| | - C Keith
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - S Kowalski
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - I Larin
- Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow, Russia.,University of Massachusetts, Amherst, MA, USA
| | - T Liu
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | | | - J Maxwell
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | | | - V Nelyubin
- University of Virginia, Charlottesville, VA, USA
| | - H Nguyen
- University of Virginia, Charlottesville, VA, USA
| | - R Pedroni
- North Carolina A&T State University, Greensboro, NC, USA
| | - C Perdrisat
- College of William and Mary, Williamsburg, VA, USA
| | - J Pierce
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - V Punjabi
- Norfolk State University, Norfolk, VA, USA
| | - M Shabestari
- Mississippi State University, Mississippi State, MS, USA
| | | | - R Silwal
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Subedi
- Mississippi State University, Mississippi State, MS, USA
| | - V V Tarasov
- Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow, Russia
| | - N Ton
- University of Virginia, Charlottesville, VA, USA
| | - Y Zhang
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - Z W Zhao
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
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Affiliation(s)
- Zishuo Zhou
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Hongfei Han
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Zijing Chen
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Rui Gao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Zhen Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Jie Su
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Nana Xin
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Xiaobing Yang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry Shanghai 200032 China
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McDermott D, Vaishampayan U, Matrana M, Rha S, Saavedra AZ, Ho T, Keam B, Lee JL, Joseph R, Ali S, Stadler W, Haas N, Sundararajan S, Park S, Mowat R, Picus J, Dudek A, Zakharia Y, Gan L, Atkins M. Safety and efficacy of the oral CXCR4 inhibitor X4P-001 + axitinib in advanced renal cell carcinoma patients: An analysis of subgroup responses by prior treatment. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhang H, Zhou Z, Yang L, Su J, Jin P, Gan L. Selective Addition of Palladium on the Rim of Open-Cage Fullerenes To Form Mononuclear and Dinuclear Complexes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00358] [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)
- Hao Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Zishuo Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Le Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Peng Jin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, People’s Republic of China
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37
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Ali A, Amaryan M, Anassontzis EG, Austregesilo A, Baalouch M, Barbosa F, Barlow J, Barnes A, Barriga E, Beattie TD, Berdnikov VV, Black T, Boeglin W, Boer M, Briscoe WJ, Britton T, Brooks WK, Cannon BE, Cao N, Chudakov E, Cole S, Cortes O, Crede V, Dalton MM, Daniels T, Deur A, Dobbs S, Dolgolenko A, Dotel R, Dugger M, Dzhygadlo R, Egiyan H, Ernst A, Eugenio P, Fanelli C, Fegan S, Foda AM, Foote J, Frye J, Furletov S, Gan L, Gasparian A, Gauzshtein V, Gevorgyan N, Gleason C, Goetzen K, Goncalves A, Goryachev VS, Guo L, Hakobyan H, Hamdi A, Han S, Hardin J, Huber GM, Hurley A, Ireland DG, Ito MM, Jarvis NS, Jones RT, Kakoyan V, Kalicy G, Kamel M, Kourkoumelis C, Kuleshov S, Kuznetsov I, Larin I, Lawrence D, Lersch DI, Li H, Li W, Liu B, Livingston K, Lolos GJ, Lyubovitskij V, Mack D, Marukyan H, Matveev V, McCaughan M, McCracken M, McGinley W, McIntyre J, Meyer CA, Miskimen R, Mitchell RE, Mokaya F, Nerling F, Ng L, Ostrovidov AI, Papandreou Z, Patsyuk M, Pauli P, Pedroni R, Pentchev L, Peters KJ, Phelps W, Pooser E, Qin N, Reinhold J, Ritchie BG, Robison L, Romanov D, Romero C, Salgado C, Schertz AM, Schumacher RA, Schwiening J, Seth KK, Shen X, Shepherd MR, Smith ES, Sober DI, Somov A, Somov S, Soto O, Stevens JR, Strakovsky II, Suresh K, Tarasov V, Taylor S, Teymurazyan A, Thiel A, Vasileiadis G, Werthmüller D, Whitlatch T, Wickramaarachchi N, Williams M, Xiao T, Yang Y, Zarling J, Zhang Z, Zhao G, Zhou Q, Zhou X, Zihlmann B. First Measurement of Near-Threshold J/ψ Exclusive Photoproduction off the Proton. Phys Rev Lett 2019; 123:072001. [PMID: 31491124 DOI: 10.1103/physrevlett.123.072001] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/05/2019] [Indexed: 05/24/2023]
Abstract
We report on the measurement of the γp→J/ψp cross section from E_{γ}=11.8 GeV down to the threshold at 8.2 GeV using a tagged photon beam with the GlueX experiment. We find that the total cross section falls toward the threshold less steeply than expected from two-gluon exchange models. The differential cross section dσ/dt has an exponential slope of 1.67±0.39 GeV^{-2} at 10.7 GeV average energy. The LHCb pentaquark candidates P_{c}^{+} can be produced in the s channel of this reaction. We see no evidence for them and set model-dependent upper limits on their branching fractions B(P_{c}^{+}→J/ψp) and cross sections σ(γp→P_{c}^{+})×B(P_{c}^{+}→J/ψp).
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Affiliation(s)
- A Ali
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - M Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - E G Anassontzis
- National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - A Austregesilo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - M Baalouch
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - F Barbosa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Barlow
- Florida State University, Tallahassee, Florida 32306, USA
| | - A Barnes
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Barriga
- Florida State University, Tallahassee, Florida 32306, USA
| | - T D Beattie
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - V V Berdnikov
- National Research Nuclear University Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - T Black
- University of North Carolina at Wilmington, Wilmington, North Carolina 28403, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - M Boer
- The Catholic University of America, Washington, D.C. 20064, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - T Britton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W K Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - B E Cannon
- Florida State University, Tallahassee, Florida 32306, USA
| | - N Cao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Cole
- Arizona State University, Tempe, Arizona 85287, USA
| | - O Cortes
- The George Washington University, Washington, D.C. 20052, USA
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Daniels
- University of North Carolina at Wilmington, Wilmington, North Carolina 28403, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Dobbs
- Florida State University, Tallahassee, Florida 32306, USA
| | - A Dolgolenko
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - R Dotel
- Florida International University, Miami, Florida 33199, USA
| | - M Dugger
- Arizona State University, Tempe, Arizona 85287, USA
| | - R Dzhygadlo
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Ernst
- Florida State University, Tallahassee, Florida 32306, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Fegan
- The George Washington University, Washington, D.C. 20052, USA
| | - A M Foda
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - J Foote
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Frye
- Indiana University, Bloomington, Indiana 47405, USA
| | - S Furletov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Gan
- University of North Carolina at Wilmington, Wilmington, North Carolina 28403, USA
| | - A Gasparian
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
| | - V Gauzshtein
- Tomsk State University, 634050 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - N Gevorgyan
- A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute), 0036 Yerevan, Armenia
| | - C Gleason
- Indiana University, Bloomington, Indiana 47405, USA
| | - K Goetzen
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - A Goncalves
- Florida State University, Tallahassee, Florida 32306, USA
| | - V S Goryachev
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - A Hamdi
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Han
- Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - J Hardin
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - A Hurley
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M M Ito
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N S Jarvis
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R T Jones
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Kakoyan
- A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute), 0036 Yerevan, Armenia
| | - G Kalicy
- The Catholic University of America, Washington, D.C. 20064, USA
| | - M Kamel
- Florida International University, Miami, Florida 33199, USA
| | - C Kourkoumelis
- National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - S Kuleshov
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - I Kuznetsov
- Tomsk State University, 634050 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - I Larin
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D Lawrence
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Lersch
- Florida State University, Tallahassee, Florida 32306, USA
| | - H Li
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W Li
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - G J Lolos
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - V Lyubovitskij
- Tomsk State University, 634050 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Marukyan
- A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute), 0036 Yerevan, Armenia
| | - V Matveev
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M McCracken
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W McGinley
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - J McIntyre
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C A Meyer
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Miskimen
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - R E Mitchell
- Indiana University, Bloomington, Indiana 47405, USA
| | - F Mokaya
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - F Nerling
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - L Ng
- Florida State University, Tallahassee, Florida 32306, USA
| | - A I Ostrovidov
- Florida State University, Tallahassee, Florida 32306, USA
| | - Z Papandreou
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - M Patsyuk
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Pauli
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - R Pedroni
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
| | - L Pentchev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K J Peters
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - W Phelps
- The George Washington University, Washington, D.C. 20052, USA
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Qin
- Northwestern University, Evanston, Illinois 60208, USA
| | - J Reinhold
- Florida International University, Miami, Florida 33199, USA
| | - B G Ritchie
- Arizona State University, Tempe, Arizona 85287, USA
| | - L Robison
- Northwestern University, Evanston, Illinois 60208, USA
| | - D Romanov
- National Research Nuclear University Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - C Romero
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A M Schertz
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - J Schwiening
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - K K Seth
- Northwestern University, Evanston, Illinois 60208, USA
| | - X Shen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - M R Shepherd
- Indiana University, Bloomington, Indiana 47405, USA
| | - E S Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Sober
- The Catholic University of America, Washington, D.C. 20064, USA
| | - A Somov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Somov
- National Research Nuclear University Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - O Soto
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - J R Stevens
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - K Suresh
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - V Tarasov
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - S Taylor
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Teymurazyan
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - A Thiel
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - G Vasileiadis
- National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - D Werthmüller
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - T Whitlatch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - M Williams
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - T Xiao
- Northwestern University, Evanston, Illinois 60208, USA
| | - Y Yang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Zarling
- Indiana University, Bloomington, Indiana 47405, USA
| | - Z Zhang
- Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - G Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - Q Zhou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - X Zhou
- Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - B Zihlmann
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
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Abstract
Molecular containers can keep guest molecules in a confined space that is completely separated from the solution. They have wide potential applications, including selective trapping of reactive intermediates, catalysis within the cavity, and molecular delivery. Numerous molecular containers have been prepared through covalent bonds, metal-ligand interactions and H-bonding or hydrophobic interactions. Fullerenes are all-carbon molecules with a spherical structure. Partial opening of the cage structure results in open-cage fullerenes, which can serve as molecular containers for various small molecules and atoms. Compared with classical molecular containers, open-cage fullerenes exhibit some unusual phenomena because of the unique structure of the fullerene cage. The synthesis of an open-cage fullerene with a large enough orifice as a molecular container requires consecutive cleavage of multiple fullerene skeleton bonds within a local area on the cage surface. In spite of the difficulty, remarkable progress has been achieved. Several reactions have been reported to cleave fullerene C-C bonds selectively to form open-cage fullerenes, some of which have been successfully used as molecular containers for molecules such as H2O. The size and shape of the orifice play a key role in the encapsulation of the guest molecule. To date the focus in this area has been the preparation of open-cage fullerenes and encapsulation of small molecules. Little information has been reported about the functional properties of these host-guest systems. Potential applications of these systems need to be explored. This Account mainly presents our results on the encapsulation of small molecules in open-cage fullerenes prepared in my group. The preparation of our open-cage fullerenes is based on fullerene-mixed peroxides, which are briefly mentioned herein. The encapsulation and release of a single molecule of water is discussed in detail. Quantitative water encapsulation was achieved by heating the open-cage fullerene in a homogeneous CDCl3/H2O/EtOH mixture at 80 °C for 18 h. The kinetics of the water release process was studied by blackbody IR radiation-induced dissociation (BIRD) and theoretical calculations. The trapped water could also be released by H-bonding with HF. To control the encapsulation and release processes, we prepared open-cage fullerenes with a switchable stopper on the rim of the orifice. Besides H2O, encapsulations of H2, HF, CO, O2, and H2O2 were also achieved by using different open-cage fullerenes. The encapsulation of CO is quite unusual in that the trapped CO is derived from a fullerene skeleton carbon that was pushed into the cavity by oxidation under ambient conditions at room temperature. The trapped O2/H2O2 could be released slowly under mild conditions, and these systems are now being studied as a new type of oxygen-releasing materials for biomedical research. The present results demonstrate that open-cage fullerenes are suitable molecular containers for small molecules. Our future work will focus on optimizing the conditions for the preparation of open-cage fullerenes and applications of open-cage fullerenes in areas such as oxygen delivery for photodynamic therapy.
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Affiliation(s)
- Liangbing Gan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
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Xu D, Yang D, Su J, Gan L. Cover Feature: Synthesis of Open‐Cage [60]Fullerenes with Five Carbonyl Groups on the Rim of the 15‐Membered Orifice (ChemPlusChem 6/2019). Chempluschem 2019. [DOI: 10.1002/cplu.201900249] [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)
- Dan Xu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistryand Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 P. R. China
| | - Dazhi Yang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistryand Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 P. R. China
| | - Jie Su
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistryand Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 P. R. China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistryand Molecular Engineering of the Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking University Beijing 100871 P. R. China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry Shanghai 200032 P. R. China
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Han B, Zhao G, Wang Y, Song Y, Li W, Yang G, Deng M, Sui X, Gan L, Sun Z, Wang Y. VASCULAR DEMENTIA IN CHRONIC CRITICALLY ILL PATIENTS WITH INVASIVE MECHANICAL VENTILATION: A PROSPECTIVE, RANDOMIZED AND CONTROLLED STUDY. Chest 2019. [DOI: 10.1016/j.chest.2019.04.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Nie W, Xu MD, Gan L, Zhang Y, Han BH. Advanced non-small cell lung cancer patients with low tumor mutation burden might derive benefit from anti-programmed cell death (PD)-1 and anti-programmed deathligand 1 (PD-L1) blockade. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zewdie E, Ciechanski P, Kuo H, Giuffre A, Kahl C, King R, Cole L, Grant H, Seeger T, Damji O, Hodge J, Selby B, Gan L, Barlow K, MacMaster F, Kirton A. Safety and tolerability of non-invasive neurostimulation in children. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.817] [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: 10/27/2022] Open
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Lang S, Gan L, Alrazi T, Monchi O. High definition transcranial alternating current stimulation of the right fusiform cortex improves visual associative memory. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.389] [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: 10/27/2022] Open
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Kirton A, Zewdie E, Gan L, Selby B, MacMaster F, Monchi O. The Non-invasive Neurostimulation Network (N3): Shared institutional infrastructure to accelerate brain stimulation research. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.566] [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: 10/27/2022] Open
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45
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Gan L, Wang F. microRNA-16-5p enhances radiosensitivity through modulating cyclin D1/E1–pRb–E2F1 pathway in prostate cancer cells. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz029.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Zhang H, Su J, Pan C, Lu X, Gan L. Synthesis of an open-cage fullerene-based unidirectional H-bonding network and its coordination with titanium. Org Chem Front 2019. [DOI: 10.1039/c9qo00188c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyl groups formed a unidirectional H-bond network on the rim of an orifice and showed a weak interaction with a water molecule trapped inside a fullerene cage.
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Affiliation(s)
- Hao Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Jie Su
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Changwang Pan
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Xing Lu
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
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Li Y, Lou N, Xu D, Pan C, Lu X, Gan L. Oxygen-Delivery Materials: Synthesis of an Open-Cage Fullerene Derivative Suitable for Encapsulation of H2
O2
and O2. Angew Chem Int Ed Engl 2018; 57:14144-14148. [DOI: 10.1002/anie.201808926] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Yanbang Li
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Ning Lou
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Dan Xu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Changwang Pan
- State Key Laboratory of Materials Processing and Die & Mould Technology; School of Materials Science and Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road Wuhan 430074 China
| | - Xing Lu
- State Key Laboratory of Materials Processing and Die & Mould Technology; School of Materials Science and Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road Wuhan 430074 China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Shanghai 200032 China
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48
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Li Y, Lou N, Xu D, Pan C, Lu X, Gan L. Oxygen-Delivery Materials: Synthesis of an Open-Cage Fullerene Derivative Suitable for Encapsulation of H2
O2
and O2. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808926] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yanbang Li
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Ning Lou
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Dan Xu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Changwang Pan
- State Key Laboratory of Materials Processing and Die & Mould Technology; School of Materials Science and Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road Wuhan 430074 China
| | - Xing Lu
- State Key Laboratory of Materials Processing and Die & Mould Technology; School of Materials Science and Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road Wuhan 430074 China
| | - Liangbing Gan
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Shanghai 200032 China
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Choueiri T, Atkins M, Rose T, Alter R, Tsiroyannis E, Niland K, Wang Y, Parasuraman S, Gan L, McDermott D. A phase Ia/IIb trial of the CXCR4 inhibitor X4P-001 and nivolumab for advanced renal cell carcinoma (RCC) that is unresponsive to nivolumab monotherapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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50
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Affiliation(s)
- Liangbing Gan
- College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
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