1
|
Li J, Ye LJ, Dai YW, Wang HW, Gao J, Shen YH, Wang F, Dai QG, Wu YQ. Single-cell analysis reveals a unique microenvironment in peri-implantitis. J Clin Periodontol 2024. [PMID: 38566468 DOI: 10.1111/jcpe.13982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 01/31/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
AIM This study aimed to reveal the unique microenvironment of peri-implantitis through single-cell analysis. MATERIALS AND METHODS Herein, we performed single-cell RNA sequencing (scRNA-seq) of biopsies from patients with peri-implantitis (PI) and compared the results with healthy individuals (H) and patients with periodontitis (PD). RESULTS Decreased numbers of stromal cells and increased immune cells were found in the PI group, which implies a severe inflammatory infiltration. The fibroblasts were found to be heterogeneous and the specific pro-inflammatory CXCL13+ sub-cluster was more represented in the PI group, in contrast to the PD and H groups. Furthermore, more neutrophil infiltration was detected in the PI group than in the PD group, and cell-cell communication and ligand-receptor pairs revealed most neutrophils were recruited by CXCL13+ fibroblasts through CXCL8/CXCL6-CXCR2/CXCR1. Notably, our study demonstrated that the unique microenvironment of the PI group promoted the differentiation of monocyte/macrophage lineage cells into osteoclasts, which might explain the faster and more severe bone resorption in the progression of PI than PD. CONCLUSIONS Collectively, this study suggests a unique immune microenvironment of PI, which may explain the differences between PI and PD in the clinic. These outcomes will aid in finding new specific and effective treatments for PI.
Collapse
Affiliation(s)
- J Li
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - L J Ye
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Y W Dai
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - H W Wang
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - J Gao
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Y H Shen
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - F Wang
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Q G Dai
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
- Department of Stomatology, Zhang Zhiyuan Academician Work Station, Hainan, Western Central Hospital, Danzhou, Hainan, China
| | - Y Q Wu
- Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| |
Collapse
|
2
|
Zhang X, Chen X, Cao JP, Wang HW, Deng WY, Yang LH, Lin K, Li Q, Li QH, Cao YL, Deng JX, Miao J. Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO 3/La 0.7Sr 0.3MnO 3 heterostructure by inserting a SrCoO 2.5 layer. Nanoscale 2024; 16:3081-3090. [PMID: 38240724 DOI: 10.1039/d3nr04591a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
A BaTiO3/SrCoO2.5 (BTO/SCO) bilayer and a BTO single film were prepared by radio frequency magnetron sputtering on La0.7Sr0.3MnO3 (LSMO) buffered SrTiO3 (001) substrates. Interestingly, compared with reported BTO-based films, the BTO/SCO/LSMO heterostructure has a maximum ON/OFF current ratio of ∼945. More interestingly, compared with the BTO single layer, a larger Pr (∼18.4 μC cm-2) and larger dielectric tunability (∼71.9%) were achieved in the BTO/SCO bilayer. The improved performance may be attributed to the large tetragonality and improved oxygen vacancy concentrations in the BTO/SCO/LSMO heterostructure. Furthermore, our BTO/SCO/LSMO stacks exhibit potential for flexible electronic informational devices.
Collapse
Affiliation(s)
- Xi Zhang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Xin Chen
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - J P Cao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - H W Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - W Y Deng
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - L H Yang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - K Lin
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Q Li
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Q H Li
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Y L Cao
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - J X Deng
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Jun Miao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| |
Collapse
|
3
|
Chang CW, Wang HW, Huang WH, Chuang PH. Unusual upper gastrointestinal bleeding following radiofrequency ablation and transarterial chemoembolization for hepatocellular carcinoma. J Postgrad Med 2023; 69:237-238. [PMID: 36861547 PMCID: PMC10846808 DOI: 10.4103/jpgm.jpgm_764_21] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/15/2021] [Accepted: 12/09/2021] [Indexed: 02/25/2023] Open
Affiliation(s)
- CW Chang
- Department of Internal Medicine, Center for Digestive Medicine, China Medical University Hospital, Taichung, Taiwan
| | - HW Wang
- Department of Internal Medicine, Center for Digestive Medicine, China Medical University Hospital, Taichung, Taiwan
| | - WH Huang
- Department of Internal Medicine, Center for Digestive Medicine, China Medical University Hospital, Taichung, Taiwan
| | - PH Chuang
- Department of Internal Medicine, Center for Digestive Medicine, China Medical University Hospital, Taichung, Taiwan
| |
Collapse
|
4
|
Wang LX, Chen Y, Dong ST, Ren FG, Zhang YF, Chang JM, Tan YH, Chen XH, Wang HW, Xu ZF. [Expression characteristics and clinical significance of CD109 in de novo acute myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:770-774. [PMID: 38049323 PMCID: PMC10630576 DOI: 10.3760/cma.j.issn.0253-2727.2023.09.012] [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] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Indexed: 12/06/2023]
Affiliation(s)
- L X Wang
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - Y Chen
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - S T Dong
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - F G Ren
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - Y F Zhang
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - J M Chang
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - Y H Tan
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - X H Chen
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - H W Wang
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| | - Z F Xu
- Department of Haematology, The Second Hospital of Shanxi Medical University, Shanxi Provincial Key Laboratory of Molecular Diagnosis and Treatment of Hematological Diseases, Taiyuan 030001, China
| |
Collapse
|
5
|
Pouvreau M, Guo Q, Wang HW, Schenter GK, Pearce CI, Clark AE, Rosso KM. An Efficient Reactive Force Field without Explicit Coordination Dependence for Studying Caustic Aluminum Chemistry. J Phys Chem Lett 2023:6743-6748. [PMID: 37470756 DOI: 10.1021/acs.jpclett.3c01176] [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: 07/21/2023]
Abstract
Reactive force fields (RFFs) are an expedient approach to sample chemical reaction paths in complex systems, relative to density functional theory. However, there is continued need to improve efficiencies, specifically in systems that have slow transverse degrees of freedom, as in highly viscous and superconcentrated solutions. Here, we present an RFF that is differentiated from current models (e.g., ReaxFF) by omitting explicit dependence on the atom coordination and employing a small parameter set based on Lennard-Jones, Gaussian, and Stillinger-Weber potentials. The model was parametrized from AIMD simulation data and is used to model aluminate reactivity in sodium hydroxide solutions with extensive validation against experimental radial distribution functions, computed free energy profiles for oligomerization, and formation energies. The model enables simulation of early stage Al(OH)3 nucleation which has significant relevance to industrial processing of aluminum and has a computational cost that is reduced by 1 order of magnitude relative to ReaxFF.
Collapse
Affiliation(s)
- Maxime Pouvreau
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Qing Guo
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Hsiu-Wen Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Gregory K Schenter
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Carolyn I Pearce
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Aurora E Clark
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Kevin M Rosso
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| |
Collapse
|
6
|
Graham TR, Pouvreau M, Gorniak R, Wang HW, Nienhuis ET, Miller QRS, Liu J, Prange MP, Schenter GK, Pearce CI, Rosso KM, Clark AE. Disordered interfaces of alkaline aluminate salt hydrates provide glimpses of Al 3+ coordination changes. J Colloid Interface Sci 2023; 637:326-339. [PMID: 36706728 DOI: 10.1016/j.jcis.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/12/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023]
Abstract
HYPOTHESIS The precipitation and dissolution of aluminum-bearing mineral phases in aqueous systems often proceed via changes in both aluminum coordination number and connectivity, complicating molecular-scale interpretation of the transformation mechanism. Here, the thermally induced transformation of crystalline sodium aluminum salt hydrate, a phase comprised of monomeric octahedrally coordinated aluminate which is of relevance to industrial aluminum processing, has been studied. Because intermediate aluminum coordination states during melting have not previously been detected, it is hypothesized that the transition to lower coordinated aluminum ions occurs within ahighly disordered quasi-two-dimensional phase at the solid-solution interface. EXPERIMENTS AND SIMULATIONS In situ X-ray diffraction (XRD), Raman and27Al nuclear magnetic resonance (NMR) spectroscopy were used to monitor the melting transition of nonasodium aluminate hydrate (NSA, Na9[Al(OH)6]2·3(OH)·6H2O). A mechanistic interpretation was developed based on complementary classical molecular dynamics (CMD) simulations including enhanced sampling. A reactive forcefield was developed to bridge speciation in the solution and in the solid phase. FINDINGS In contrast to classical dissolution, aluminum coordination change proceeds through a dynamically stabilized ensemble of intermediate states in a disordered layer at the solid-solution interface. In both melting and dissolution of NSA, octahedral, monomeric aluminum transition through an intermediate of pentahedral coordination. The intermediate dehydroxylates to form tetrahedral aluminate (Al(OH)4-) in the liquid phase. This coordination change is concomitant with a breaking of the ionic aluminate-sodium ionlinkages. The solution phase Al(OH)4- ions subsequently polymerize into polynuclear aluminate ions. However, there are some differences between bulk melting and interfacial dissolution, with the onset of the surface-controlled process occurring at a lower temperature (∼30 °C) and the coordination change taking place more gradually as a function of temperature. This work to determine the local structure and dynamics of aluminum in the disordered layer provides a new basis to understand mechanisms controlling aluminum phase transformations in highly alkaline solutions.
Collapse
Affiliation(s)
- Trent R Graham
- Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Maxime Pouvreau
- Pacific Northwest National Laboratory, Richland, WA 99354, USA; Department of Chemistry, Washington State University, Pullman, WA 99163, USA.
| | - Rafal Gorniak
- Department of Chemistry, Washington State University, Pullman, WA 99163, USA; Department of Physical Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Hsiu-Wen Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | | | - Quin R S Miller
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Jian Liu
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Micah P Prange
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | | | - Carolyn I Pearce
- Pacific Northwest National Laboratory, Richland, WA 99354, USA; Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99163, USA
| | - Kevin M Rosso
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Aurora E Clark
- Pacific Northwest National Laboratory, Richland, WA 99354, USA; Department of Chemistry, Washington State University, Pullman, WA 99163, USA; Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA.
| |
Collapse
|
7
|
Wang HW, Qi SQ, Liu CB, Ji CJ, Li S. [Establishment and digital simulation of upper airway in patients with adenoid hypertrophy]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:337-344. [PMID: 37005780 DOI: 10.3760/cma.j.cn112144-20221024-00556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Objective: To analyze the flow field characteristics of the upper airway in patients with different adenoid hypertrophy using computational fluid dynamics (CFD). Methods: From November 2020 to November 2021, the cone-beam CT (CBCT) data of 4 patients [2 males and 2 females,age range 5-7 years, mean (6.0±1.2) years] with adenoid hypertrophy who were hospitalized in the Department of Orthodontics and the Department of Otolaryngology at Hebei Eye Hospital were selected. The degree of adenoid hypertrophy in the 4 patients was divided into normal S1 (A/N<0.6), mild hypertrophy S2 (0.6≤A/N<0.7), moderate hypertrophy S3 (0.7≤A/N<0.9) and severe hypertrophy S4 (A/N≥0.9) according to the ratio of adenoid thickness to the width of nasopharyngeal cavity (A/N). The CFD model of the upper airway was established using ANSYS 2019 R1 software, and the internal flow field of the CFD model was numerically simulated. Eight sections were selected as observation and measurement planes for flow field information. Relevant flow field information includes airflow distribution, velocity variation, and pressure variation. Results: In the S1 model, the maximum pressure difference occurred in the 4th and 5th observation planes (ΔP=27.98). The lowest pressures and the maximum flow rates of S2 and S3 were located in the 6th observation plane. The airflow in S1 and S2 models completely passed through the nasal cavity. In the S3 model, the mouth-to-nasal airflow ratio was close to 2∶1. In S4 model, the airflow completely passed through the mouth; in the S1 and S2 models, hard palates were subjected to a downward positive pressure with a pressure difference of 38.34 and 23.31 Pa, respectively. The hard palates in S3 and S4 models were subjected to a downward negative pressure with a pressure difference of -2.95 and -21.81 Pa, respectively. Conclusions: The CFD model can objectively and quantitatively describe the upper airway airflow field information in patients with adenoid hypertrophy. With the increasing degree of adenoid hypertrophy, the nasal ventilation volume gradually decreased, whereas the oral space ventilation volume gradually increased, and the pressure difference between the upper and lower surfaces of the palate gradually decreased until the pressure became negative.
Collapse
Affiliation(s)
- H W Wang
- Department of Orthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - S Q Qi
- Department of Orthodontics, Hebei Eye Hospital, Xingtai 054001, China
| | - C B Liu
- Department of Otolaryngology, Hebei Eye Hospital, Xingtai 054001, China
| | - C J Ji
- School of Biomedical Engineering, Capital Medical University, Beijing 100069, China
| | - S Li
- Department of Orthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| |
Collapse
|
8
|
Wang GH, Lin QM, Lin JF, Deng YJ, Jiang YR, Wang HW, Su RX, Qiu XC, Li CB, Jiang F. [Protocol for the development of Chinese guideline for the treatment of bedtime problems and night wakings in children under 6 years of age (2023)]. Zhonghua Er Ke Za Zhi 2023; 61:122-125. [PMID: 36720592 DOI: 10.3760/cma.j.cn112140-20220805-00706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- G H Wang
- Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Q M Lin
- Pediatric Translational Medicine Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J F Lin
- Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Y J Deng
- Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Y R Jiang
- Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - H W Wang
- Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - R X Su
- Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X C Qiu
- EBM Literature Research Center of Library, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - C B Li
- Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - F Jiang
- Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| |
Collapse
|
9
|
Nienhuis ET, Pouvreau M, Graham TR, Prange MP, Page K, Loring JS, Stack AG, Clark AE, Schenter GK, Rosso KM, Pearce CI, Wang HW. Structure and reactivity of sodium aluminate complexes in alkaline solutions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
10
|
Page K, Stack AG, Chen SA, Wang HW. Nanopore facilitated monohydrocalcitic amorphous calcium carbonate precipitation. Phys Chem Chem Phys 2022; 24:18340-18346. [PMID: 35880670 DOI: 10.1039/d2cp00446a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Predicting the precipitation of solids is important in both natural systems and subsurface energy applications. The factors controlling reaction mechanisms, phase selection and conversion between phases are particularly important. In this contribution the precipitation and growth of an amorphous calcium carbonate species from flowing aqueous solution in a nanoporous controlled pore glass is followed in situ with differential X-ray pair distribution function analysis. It is discovered that the local atomic structure of this phase indicates monohydrocalcite-like pair-pair correlations, yet is functionally amorphous because it lacks long-range structure. The unexpected occurrence of synthetic proto-monohydrocalcite amorphous calcium carbonate, precipitated from a solution undersaturated with respect to published solubilities, suggests that nanopore confinement facilitates formation of an amorphous phase at the expense of more favorable crystalline ones. This result illustrates that confinement and interface effects are physical factors exerting control on mineral nucleation behavior in natural and geological systems.
Collapse
Affiliation(s)
- Katharine Page
- Materials Science and Engineering Department, The University of Tennessee, Knoxville, TN, 38996, USA. .,Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Andrew G Stack
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
| | - Si Athena Chen
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
| | - Hsiu-Wen Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
| |
Collapse
|
11
|
Wang LJ, Wang HM, Meng YQ, He YL, Wang HW, Ren ZP, Nie JS, Tang DL. [Association between cord blood BPDE-DNA and neurodevelopment of children aged 0 and 2 years: A birth cohort study]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:412-418. [PMID: 35785892 DOI: 10.3760/cma.j.cn121094-20210413-00202] [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: 06/15/2023]
Abstract
Objective: To explore the effects of mothers' exposure to polycyclic aromatic hydrocarbons during pregnancy on their children's neurobehavioral development. Methods: In November 2009 to April 2010, a total of 221 pairs of mother-newborn pairs were recruited from two cooperative hospitals in Taiyuan, and their children were followed up at age two. High performance liquid chromatography was used to determine the level of BPDE-DNA in cord blood leukocytes. The Neonatal behavioral neurological assessment (NBNA) was used to assess the neurodevelopment of newborns, and the Gesell Development Scale was used to measure neurodevelopmental indexes of 2-year-old children. NBNA includes behavior, active and passive tone, primitive reflexes and general assessment, with a total score of 40 points. The Gesell Developmental Schedules consisted of four sub-scales: motor development, adaptive behavior development, language development and personal-social behavior development. We used mean and standard deviation to describe continuous variables with normal distribution, median (interquartile range) to describe continuous variables with skewed distribution, and frequency and proportion to describe categorical variables. Restricted cubic spline models were applied to assess the dose-response relationships between maternal prenatal polycyclic aromatic hydrocarbons exposure and children's neurobehavioral development at two years old. Generalized linear models were applied to evaluate the effect of exposure to maternal prenatal polycyclic aromatic hydrocarbons exposure on children's neurobehavioral development at 0 and two years old. Results: The NBNA score was 38.0±0.8, and the scores of 2-year-old children's motor, adaptive, language and personal-social were 111.6±15.0, 110.5±14.6, 108.8±17.2 and 111.7±14.5, respectively. After adjusting for confounding factors, there is no dose-response association between the cord blood BPDE of pregnant women and neonatal NBNA scores, but there were dose-response associations between BPDE and scores of 2-year-old children's motor, adaptive, language and personal-social. A unit increase in cord blood ln (BPDE-DNA), the score of motor, adaptive, language and personal-social of 2-year-old children decreased on average by 4.54、6.29、8.41 and 7.02 points. Conclusion: Maternal exposure to polycyclic aromatic hydrocarbons during pregnancy is associated with decreased children's neurobehavioral development at two years old.
Collapse
Affiliation(s)
- L J Wang
- Shanxi Center for Disease Control and Prevention, Taiyuan, 030001, China Academy of Preventive Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - H M Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Y Q Meng
- Shanxi Center for Disease Control and Prevention, Taiyuan, 030001, China Academy of Preventive Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Y L He
- Shanxi Center for Disease Control and Prevention, Taiyuan, 030001, China Academy of Preventive Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - H W Wang
- Shanxi Center for Disease Control and Prevention, Taiyuan, 030001, China Academy of Preventive Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Z P Ren
- Shanxi Center for Disease Control and Prevention, Taiyuan, 030001, China Academy of Preventive Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - J S Nie
- Academy of Preventive Medicine, Shanxi Medical University, Taiyuan, 030001, China Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - D L Tang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
12
|
Biriukov D, Wang HW, Rampal N, Tempra C, Kula P, Neuefeind JC, Stack AG, Předota M. The "good," the "bad," and the "hidden" in neutron scattering and molecular dynamics of ionic aqueous solutions. J Chem Phys 2022; 156:194505. [PMID: 35597655 DOI: 10.1063/5.0093643] [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: 12/25/2022] Open
Abstract
We characterize a concentrated 7.3 m CaCl2 solution, combining neutron diffraction with chloride isotopic substitution (Cl-NDIS) in null water and molecular dynamics (MD) simulations. We elucidate the solution structure, thermodynamic properties, and extent of ion pairing previously suggested as concentration-dependent and often not observed at lower concentrations. Our Cl-NDIS measurements designate the solvent-shared ion pairing as dominant and the contact ion pairing (CIP) as insignificant even under conditions close to the solubility limit. The MD models parameterized against neutron diffraction with calcium isotopic substitution (Ca-NDIS) overestimate CIP despite successfully reproducing most of the Cl-NDIS signal. This drawback originates from the fact that Ca2+-Cl- interactions were primarily "hidden" in the Ca-NDIS signal due to overlapping with Ca2+-Ow and Ca2+-Hw contributions to the total scattering. Contrary, MD models with moderate CIP and possessing generally good performance at high concentrations fail to reproduce the NDIS measurements accurately. Therefore, the electronic polarization, introduced in most of the recent MD models via scaling ionic charges, resolves some but not all parameterization drawbacks. We conclude that despite improving the quality of MD models "on average," the question "which model is the best" has not been answered but replaced by the question "which model is better for a given research." An overall "good" model can still be inappropriate or, in some instances, "bad" and, unfortunately, produce erroneous results. The accurate interpretation of several NDIS datasets, complemented by MD simulations, can prevent such mistakes and help identify the strengths, weaknesses, and convenient applications for corresponding computational models.
Collapse
Affiliation(s)
- Denys Biriukov
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 16610 Prague 6, Czech Republic
| | - Hsiu-Wen Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Nikhil Rampal
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Carmelo Tempra
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 16610 Prague 6, Czech Republic
| | - Patrik Kula
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 16610 Prague 6, Czech Republic
| | - Joerg C Neuefeind
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Andrew G Stack
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Milan Předota
- Department of Physics, Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic
| |
Collapse
|
13
|
Broome SC, Pham T, Braakhuis AJ, Narang R, Wang HW, Hickey AJR, Mitchell CJ, Merry TL. MitoQ supplementation augments acute exercise-induced increases in muscle PGC1α mRNA and improves training-induced increases in peak power independent of mitochondrial content and function in untrained middle-aged men. Redox Biol 2022; 53:102341. [PMID: 35623315 PMCID: PMC9142706 DOI: 10.1016/j.redox.2022.102341] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/10/2022] [Accepted: 05/14/2022] [Indexed: 10/27/2022] Open
Abstract
The role of mitochondrial ROS in signalling muscle adaptations to exercise training has not been explored in detail. We investigated the effect of supplementation with the mitochondria-targeted antioxidant MitoQ on a) the skeletal muscle mitochondrial and antioxidant gene transcriptional response to acute high-intensity exercise and b) skeletal muscle mitochondrial content and function following exercise training. In a randomised, double-blind, placebo-controlled, parallel design study, 23 untrained men (age: 44 ± 7 years, VO2peak: 39.6 ± 7.9 ml/kg/min) were randomised to receive either MitoQ (20 mg/d) or a placebo for 10 days before completing a bout of high-intensity interval exercise (cycle ergometer, 10 × 60 s at VO2peak workload with 75 s rest). Blood samples and vastus lateralis muscle biopsies were collected before exercise and immediately and 3 h after exercise. Participants then completed high-intensity interval training (HIIT; 3 sessions per week for 3 weeks) and another blood sample and muscle biopsy were collected. There was no effect of acute exercise or MitoQ on systemic (plasma protein carbonyls and reduced glutathione) or skeletal muscle (mtDNA damage and 4-HNE) oxidative stress biomarkers. Acute exercise-induced increases in skeletal muscle peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1-α) mRNA expression were augmented in the MitoQ group. Despite this, training-induced increases in skeletal muscle mitochondrial content were similar between groups. HIIT-induced increases in VO2peak and 20 km time trial performance were also similar between groups while training-induced increases in peak power achieved during the VO2peak test were augmented in the MitoQ group. These data suggest that training-induced increases in peak power are enhanced following MitoQ supplementation, which may be related to the augmentation of skeletal muscle PGC1α expression following acute exercise. However, these effects do not appear to be related to an effect of MitoQ supplementation on exercise-induced oxidative stress or training-induced mitochondrial biogenesis in skeletal muscle.
Collapse
Affiliation(s)
- S C Broome
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand.
| | - T Pham
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand; Auckland Bioengineering Institute, Faculty of Science, The University of Auckland, Auckland, New Zealand
| | - A J Braakhuis
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand
| | - R Narang
- School of Medicine, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - H W Wang
- School of Medicine, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand; School of Biological Sciences, Faculty of Science, The University of Auckland, Auckland, New Zealand
| | - A J R Hickey
- School of Biological Sciences, Faculty of Science, The University of Auckland, Auckland, New Zealand
| | - C J Mitchell
- School of Kinesiology, University of British Columbia, Vancouver, Canada
| | - T L Merry
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
| |
Collapse
|
14
|
Prange MP, Graham TR, Gorniak R, Pouvreau M, Dembowski M, Wang HW, Daemen LL, Schenter GK, Bowden ME, Nienhuis ET, Rosso KM, Clark AE, Pearce CI. Theory-Guided Inelastic Neutron Scattering of Crystalline Alkaline Aluminate Salts Bearing Principal Motifs of Solution-State Species. Inorg Chem 2021; 60:16223-16232. [PMID: 34644061 DOI: 10.1021/acs.inorgchem.1c02006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aluminate salts precipitated from caustic alkaline solutions exhibit a correlation between the anionic speciation and the identity of the alkali cation in the precipitate, with the aluminate ions occurring either in monomeric (Al(OH)4-) or dimeric (Al2O(OH)62-) forms. The origin of this correlation is poorly understood as are the roles that oligomeric aluminate species play in determining the solution structure, prenucleation clusters, and precipitation pathways. Characterization of aluminate solution speciation with vibrational spectroscopy results in spectra that are difficult to interpret because the ions access a diverse and dynamic configurational space. To investigate the Al(OH)4- and Al2O(OH)62- anions within a well-defined crystal lattice, inelastic neutron scattering (INS) and Raman spectroscopic data were collected and simulated by density functional theory for K2[Al2O(OH)6], Rb2[Al2O(OH)6], and Cs[Al(OH) 4]·2H2O. These structures capture archetypal solution aluminate species: the first two salts contain dimeric Al2O(OH)62- anions, while the third contains the monomeric Al(OH)4- anion. Comparisons were made to the INS and Raman spectra of sodium aluminate solutions frozen in a glassy state. In contrast to solution systems, the crystal lattice of the salts results in well-defined vibrations and associated resolved bands in the INS spectra. The use of a theory-guided analysis of the INS of this solid alkaline aluminate series revealed that differences were related to the nature of the hydrogen-bonding network and showed that INS is a sensitive probe of the degree of completeness and strength of the bond network in hydrogen-bonded materials. Results suggest that the ionic size may explain cation-specific differences in crystallization pathways in alkaline aluminate salts.
Collapse
Affiliation(s)
- Micah P Prange
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Trent R Graham
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Rafal Gorniak
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Maxime Pouvreau
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Mateusz Dembowski
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Hsiu-Wen Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Luke L Daemen
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Gregory K Schenter
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.,Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Mark E Bowden
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Emily T Nienhuis
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Kevin M Rosso
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Aurora E Clark
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.,Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Carolyn I Pearce
- Environmental Subsystem Science Division, Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.,Department of Crop and Soil Sciences, Washington State University, Pullman, Washington 99164, United States
| |
Collapse
|
15
|
Mergelsberg ST, Dembowski M, Bowden ME, Graham TR, Prange M, Wang HW, Zhang X, Qafoku O, Rosso KM, Pearce CI. Cluster defects in gibbsite nanoplates grown at acidic to neutral pH. Nanoscale 2021; 13:17373-17385. [PMID: 34713874 DOI: 10.1039/d1nr01615f] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Gibbsite [α-Al(OH)3] is the solubility limiting phase for aluminum across a wide pH range, and it is a common mineral phase with many industrial applications. The growth mechanism of this layered-structure material, however, remains incompletely understood. Synthesis of gibbsite at low to circumneutral pH yields nanoplates with substantial interlayer disorder. Here we examine defects in this material in detail, and the effects of recrystallization in highly alkaline sodium hydroxide solution at 80 °C. We employed a multimodal approach, including scanning electron microscopy, magic-angle spinning nuclear magnetic resonance (MAS-NMR), Raman and infrared spectroscopies, X-ray diffraction (XRD), and X-ray total scattering pair distribution function (XPDF) analysis to characterize the ageing of the nanoplates over several days. XRD and XPDF indicate that gibbsite nanoplates precipitated at circumneutral pH contain dense, truncated sheets imparting a local difference in interlayer distance. These interlayer defects appear well described by flat Al13 aluminum hydroxide nanoclusters nearly isostructural with gibbsite sheets present under synthesis conditions and trapped as interlayer inclusions during growth. Ageing at elevated temperature in alkaline solutions gradually improves crystallinity, showing a gradual increase in H-bonding between interlayer OH groups. Between 7 to 8 vol% of the initial gibbsite nanoparticles exhibit this defect, with the majority of differences disappearing after 2-4 hours of recrystallization in alkaline solution. The results not only identify the source of disorder in gibbsite formed under acidic/neutral conditions but also point to a possible cluster-mediated growth mechanism evident through inclusion of relict oligomers with gibbsite-like topology trapped in the interlayer spaces.
Collapse
Affiliation(s)
| | - Mateusz Dembowski
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Mark E Bowden
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Trent R Graham
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Micah Prange
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Hsiu-Wen Wang
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Xin Zhang
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Odeta Qafoku
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Kevin M Rosso
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
| | - Carolyn I Pearce
- Pacific Northwest national Laboratory, Richland, Washington 99352, USA.
- Washington State University, Pullman, Washington 99164, USA
| |
Collapse
|
16
|
Rampal N, Wang HW, Biriukov D, Brady AB, Neuefeind JC, Předota M, Stack AG. Local molecular environment drives speciation and reactivity of ion complexes in concentrated salt solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
17
|
Wang LJ, Wang HW, Jin KM, Liu W, Bao Q, Wang K, Xing BC. [Comparative study on prognosis of neoadjuvant chemotherapy followed by hepatic surgery versus upfront surgery in patients with synchronous colorectal liver metastasis]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:248-255. [PMID: 34645169 DOI: 10.3760/cma.j.cn.441530-20200606-00346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the survival outcome in patients with synchronous colorectal cancer liver metastasis receiving neoadjuvant chemotherapy followed by hepatic surgery versus upfront surgery strategies. Methods: A retrospective cohort study was carried out. Data of patients undergoing surgery at the Department of Hepatopancreatobiliary Surgery Unit I of Peking University Cancer Hospital from January 2008 to December 2018 for initially resectable synchronous colorectal liver metastasis were retrospectively collected. A total of 282 cases were enrolled, including 244 in the neoadjuvant chemotherapy group, 38 in the upfront surgery first group. The overall survival (OS) and progression-free survival (PFS) of the two groups were compared. A propensity score risk adjustment was used to eliminate potential bias between groups, and the covariates including sex, age, location of primary tumor, T stage, clinical risk score (CRS), RAS gene status, adjuvant chemotherapy, and resection margin status were included for adjustment. Results: In the neoadjuvant chemotherapy group, 244 cases received 4 (1-15) cycles of chemotherapy before hepatic resection, among whom 207 cases received oxaliplatin-based regimens, 37 cases received irinotecan-based regimens, and 90 cases received combined targeted agents in the first line treatment. The median follow-up time was 30 (5-134) months, and loss of follow-up was 1%. Before adjustment, Kaplan-Meier survival analysis showed that the 1-year and 3-year OS rates in the neoadjuvant chemotherapy group (95.1% and 66.4%) were better than those in the upfront surgery first group (94.7% and 51.5%, P=0.026); 1-year and 3-year PFS rates in neoadjuvant chemotherapy group (51.0% and 23.4%) were also better than those in surgery first group (39.5% and 11.5%, P=0.039). After propensity score risk adjustment, Cox multivariate analysis indicated that neoadjuvant chemotherapy was an independent protective factor of PFS (HR=0.664, 95% CI: 0.449-0.982, P=0.040), however, neoadjuvant chemotherapy was not an independent protective factor of OS (HR=0.651, 95% CI: 0.393-1.079, P=0.096). Subgroup analysis showed that the 1-year and 3-year OS rates in the patients with response to the first line treatment (194, including complete remission, partial remission and reduction but not partial remission) (96.9% and 67.1%) were better than those in the upfront surgery group (94.7% and 51.5%, P=0.026) after adjustment. However, the 1-year and 3-year OS rates in the patients without response to the first line treatment (50, including tumor progression or enlargement) were 90.0% and 63.3%, respectively, which were not significantly different with 94.7% and 51.5% in the upfront surgery group (P=0.310) after adjustment. Conclusions: For patients with resectable synchronous colorectal cancer liver metastasis, liver resection after neoadjuvant chemotherapy can provide longer PFS than upfront surgery. Although the whole OS benefit is not significant, patients with effective neoadjuvant first-line chemotherapy have better OS than those undergoing upfront surgery.
Collapse
Affiliation(s)
- L J Wang
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| | - H W Wang
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| | - K M Jin
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| | - W Liu
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| | - Q Bao
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| | - K Wang
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| | - B C Xing
- Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
| |
Collapse
|
18
|
Brady A, Liang K, Vuong VQ, Sacci R, Prenger K, Thompson M, Matsumoto R, Cummings P, Irle S, Wang HW, Naguib M. Pre-Sodiated Ti 3C 2T x MXene Structure and Behavior as Electrode for Sodium-Ion Capacitors. ACS Nano 2021; 15:2994-3003. [PMID: 33513013 DOI: 10.1021/acsnano.0c09301] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Layered titanium carbide (Ti3C2Tx) MXene is a promising electrode material for use in next-generation electrochemical capacitors. However, the atomic-level information needed to correlate the distribution of intercalated cations with surface redox reactions, has not been investigated in detail. Herein we report on sodium preintercalated MXene with high sodium content (up to 2Na per Ti3C2Tx formula) using a solution of Na-biphenyl radical anion complex (E0 ≈ -2.6 SHE). Multiple sodiation sites and formation of a two-dimensional sodium domain structure at interfaces/surfaces is identified through combined computational simulations with neutron pair distribution function analysis. The induced layer charges and the redox process characterized by the density-functional tight-binding method on a local scale are found to greatly depend on the location of sodium ions. Electrochemical testing of the pre-sodiated MXene as an electrode material in a sodium-ion capacitor shows excellent reversibility and promising performance, indicating the feasibility of chemical preintercalation as an approach to prepare MXene electrodes for ion capacitors.
Collapse
Affiliation(s)
- Alexander Brady
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Kun Liang
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States
| | - Van Quan Vuong
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Robert Sacci
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Kaitlyn Prenger
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States
| | - Matt Thompson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Ray Matsumoto
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Peter Cummings
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Stephan Irle
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, United States
- Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Hsiu-Wen Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Michael Naguib
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States
| |
Collapse
|
19
|
Graham TR, Dembowski M, Wang HW, Mergelsberg ST, Nienhuis ET, Reynolds JG, Delegard CH, Wei Y, Snyder M, Leavy II, Baum SR, Fountain MS, Clark SB, Rosso KM, Pearce CI. Hydroxide promotes ion pairing in the NaNO 2-NaOH-H 2O system. Phys Chem Chem Phys 2021; 23:112-122. [PMID: 33305779 DOI: 10.1039/d0cp04799f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nitrite (NO2-) is a prevalent nitrogen oxyanion in environmental and industrial processes, but its behavior in solution, including ion pair formation, is complex. This solution phase complexity impacts industries such as nuclear waste treatment, where NO2- significantly affects the solubility of other constituents present in sodium hydroxide (NaOH)-rich nuclear waste. This work provides molecular scale information into sodium nitrite (NaNO2) and NaOH ion-pairing processes to provide a physical basis for later development of thermodynamic models. Solubility isotherms of NaNO2 in aqueous mixtures with NaOH and total alkalinity were also measured. Spectroscopic characterization of these solutions utilized high-field nuclear magnetic resonance spectroscopy (NMR) and Raman spectroscopy, with additional solution structure detailed by X-ray total scattering pairwise distribution function analysis (X-ray PDF). Despite the NO2- deformation Raman band's insensitivity to added NaOH in saturated NaNO2 solutions, 23Na and 15N NMR studies indicated the Na+ and NO2- chemical environments change likely due to ion pairing. The ion pairing correlates with a decrease in diffusion coefficient of solution species as measured by pulsed field gradient 23Na and 1H NMR. Two-dimensional correlation analyses of the 2800-4000 cm-1 Raman region and X-ray PDF indicated that saturated NaNO2 and NaOH mixtures disrupt the hydrogen network of water into a new structure where the length of the OO correlations is contracted relative to the typical H2O structure. Beyond describing the solubility of NaNO2 in a multicomponent electrolyte mixture, these results also indicate that nitrite exhibits greater ion pairing in mixtures of concentrated NaNO2 and NaOH than in comparable solutions with only NaNO2.
Collapse
Affiliation(s)
- Trent R Graham
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Bao Q, Wang K, Wang HW, Jin KM, Xing BC. [Long-term outcomes of patients undergoing hepatectomy for bilateral multiple colorectal liver metastases-a propensity score matching analysis]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:976-983. [PMID: 33053993 DOI: 10.3760/cma.j.cn.441530-20200414-00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Liver is the most common site of distant metastasis in colorectal cancer patients. Currently, surgical resection of colorectal liver metastasis (CRLM) still remains the most curative therapeutic option which is associated with long-term survival. However, the outcome of CRLM patients with bilobar multiple lesions has been reported to be extremely poor due to the complex techniques of the surgery and the difficulties to achieve a negative resection margin. In this study, postoperative long-term outcome in patients with bilobar versus unilobar multiple CRLM undergoing surgical resection were compared and the prognostic factors of CRLM were analyzed. Methods: A retrospective cohort study was performed. The clinicopathological data were collected retrospectively from patients with multiple CRLM who received liver resection between January 2002 and November 2018 at our department. Inclusion criteria: (1) All CRLM lesions were confirmed by preoperative enhanced CT or MRI and enhanced ultrasonography. (2) All CRLM lesions were resectable either initially or converted by systemic treatments. The CRLM patients were considered as resectable, if their extrahepatic diseases were able to be completely removed. (3) Sufficient remnant liver volume was required to maintain normal liver function, which was defined by the ratio of remnant liver volume to total liver volume (RLV-TLV), of greater than 30% in general or 40% for the patients undergoing chemotherapy. (4) Medical records and follow-up information were intact. Those undergoing multiple operations after recurrence, with R2 resection, or with a single CRLM lesion were excluded. Patients were divided into bilobar and unilobar group according to tumor distribution. One-to-one propensity score matching (PSM) was performed to balance the covariates between the bilobar group and unilobar group. After PSM, the differences in long-term outcomes between the two groups were compared. Results: A total of 491 patients met the inclusion criteria, 344 (69.6%) with bilobar and 147 (30.4%) with unilobar CRLM. In the propensity-score-matched population (bilobar, 143; unilobar, 143), baseline characteristics were similar between the two groups. The 1-, 3-, and 5-year overall survival rates in the bilobar group were 91.6%, 52.1%, and 35.3% respectively, compared with 93.7%, 56.8%, and 43.8% in the unilobar group, and the difference was not statistically significant (P=0.204). The 1-, 3-, and 5-year recurrence-free survival rates in the bilobar group were 45.7%, 33.7%, and 33.7% respectively, compared with 62.5%, 44.1%, and 42.1% in the unilobar group, and the difference was not statistically significant (P=0.075). No significant difference was found in liver-only recurrence (45.6% in bilobar vs. 53.3% in unilobar, P=0.543). Univariate analysis showed that N stage of primary tumor, diameter of the largest liver metastases, carcinoembyonic antigen level, RAS gene status and clinical risk score (CRS) were significantly associated with the prognosis of CRLM (all P<0.05). Multivariate analysis indicated that diameter of largest liver metastases > 5 cm (HR=1.888, 95% CI: 1.251-2.848, P=0.002), CRS≥3 (HR=1.552,95% CI:1.050-2.294, P=0.027) and RAS gene mutation (HR=1.561, 95% CI: 1.102-2.212, P=0.012) were independent risk factors of poor overall survival after hepatectomy. Conclusions: Tumor distribution may not affect the prognosis of multiple CRLM after resection. Surgical removal in patients with bilobar multiple CRLM provides comparable long-term survival to unilobar multiple CRLM.
Collapse
Affiliation(s)
- Q Bao
- Key Laboratory of Carcinogenesis & Translational Research(Ministry of Education), First Department of Hepatopanereatobiliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - K Wang
- Key Laboratory of Carcinogenesis & Translational Research(Ministry of Education), First Department of Hepatopanereatobiliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - H W Wang
- Key Laboratory of Carcinogenesis & Translational Research(Ministry of Education), First Department of Hepatopanereatobiliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - K M Jin
- Key Laboratory of Carcinogenesis & Translational Research(Ministry of Education), First Department of Hepatopanereatobiliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - B C Xing
- Key Laboratory of Carcinogenesis & Translational Research(Ministry of Education), First Department of Hepatopanereatobiliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| |
Collapse
|
21
|
Lee J, Xu XX, Kaneko K, Sun Y, Lin CJ, Sun LJ, Liang PF, Li ZH, Li J, Wu HY, Fang DQ, Wang JS, Yang YY, Yuan CX, Lam YH, Wang YT, Wang K, Wang JG, Ma JB, Liu JJ, Li PJ, Zhao QQ, Yang L, Ma NR, Wang DX, Zhong FP, Zhong SH, Yang F, Jia HM, Wen PW, Pan M, Zang HL, Wang X, Wu CG, Luo DW, Wang HW, Li C, Shi CZ, Nie MW, Li XF, Li H, Ma P, Hu Q, Shi GZ, Jin SL, Huang MR, Bai Z, Zhou YJ, Ma WH, Duan FF, Jin SY, Gao QR, Zhou XH, Hu ZG, Wang M, Liu ML, Chen RF, Ma XW. Large Isospin Asymmetry in ^{22}Si/^{22}O Mirror Gamow-Teller Transitions Reveals the Halo Structure of ^{22}Al. Phys Rev Lett 2020; 125:192503. [PMID: 33216609 DOI: 10.1103/physrevlett.125.192503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/26/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
β-delayed one-proton emissions of ^{22}Si, the lightest nucleus with an isospin projection T_{z}=-3, are studied with a silicon array surrounded by high-purity germanium detectors. Properties of β-decay branches and the reduced transition probabilities for the transitions to the low-lying states of ^{22}Al are determined. Compared to the mirror β decay of ^{22}O, the largest value of mirror asymmetry in low-lying states by far, with δ=209(96), is found in the transition to the first 1^{+} excited state. Shell-model calculation with isospin-nonconserving forces, including the T=1, J=2, 3 interaction related to the s_{1/2} orbit that introduces explicitly the isospin-symmetry breaking force and describes the loosely bound nature of the wave functions of the s_{1/2} orbit, can reproduce the observed data well and consistently explain the observation that a large δ value occurs for the first but not for the second 1^{+} excited state of ^{22}Al. Our results, while supporting the proton-halo structure in ^{22}Al, might provide another means to identify halo nuclei.
Collapse
Affiliation(s)
- J Lee
- Department of Physics, The University of Hong Kong, Hong Kong, China
| | - X X Xu
- Department of Physics, The University of Hong Kong, Hong Kong, China
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516003, China
| | - K Kaneko
- Department of Physics, Kyushu Sangyo University, Fukuoka 813-8503, Japan
| | - Y Sun
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - C J Lin
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- College of Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - L J Sun
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - P F Liang
- Department of Physics, The University of Hong Kong, Hong Kong, China
| | - Z H Li
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - J Li
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - H Y Wu
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D Q Fang
- Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - J S Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Science, Huzhou University, Huzhou 313000, China
| | - Y Y Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
| | - Y H Lam
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y T Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang, 453007, China
| | - K Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - J G Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J B Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J J Liu
- Department of Physics, The University of Hong Kong, Hong Kong, China
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - P J Li
- Department of Physics, The University of Hong Kong, Hong Kong, China
| | - Q Q Zhao
- Department of Physics, The University of Hong Kong, Hong Kong, China
| | - L Yang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - N R Ma
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - D X Wang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - F P Zhong
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - S H Zhong
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - F Yang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - H M Jia
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - P W Wen
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - M Pan
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
| | - H L Zang
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - X Wang
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - C G Wu
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D W Luo
- School of Physic and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - H W Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - C Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - C Z Shi
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - M W Nie
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - X F Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - H Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - P Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Hu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - G Z Shi
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - S L Jin
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - M R Huang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Bai
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y J Zhou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W H Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - F F Duan
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - S Y Jin
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Q R Gao
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X H Zhou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516003, China
| | - Z G Hu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516003, China
| | - M Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516003, China
| | - M L Liu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - R F Chen
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - X W Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| |
Collapse
|
22
|
Dembowski M, Snyder MM, Delegard CH, Reynolds JG, Graham TR, Wang HW, Leavy II, Baum SR, Qafoku O, Fountain MS, Rosso KM, Clark SB, Pearce CI. Ion-ion interactions enhance aluminum solubility in alkaline suspensions of nano-gibbsite (α-Al(OH) 3) with sodium nitrite/nitrate. Phys Chem Chem Phys 2020; 22:4368-4378. [PMID: 31850442 DOI: 10.1039/c9cp05856g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Despite widespread industrial importance, predicting metal solubilities in highly concentrated, multicomponent aqueous solutions is difficult due to poorly understood ion-ion and ion-solvent interactions. Aluminum hydroxide solid phase solubility in concentrated sodium hydroxide (NaOH) solutions is one such case, with major implications for ore refining, as well as processing of radioactive waste stored at U.S. Department of Energy legacy sites, such as the Hanford Site, Washington State. The solubility of gibbsite (α-Al(OH)3) is often not well predicted because other ions affect the activity of hydroxide (OH-) and aluminate (Al(OH)4-) anions. In the present study, we systematically examined the influence of key anions, nitrite (NO2-) and nitrate (NO3-), as sodium salts on the solubility of α-Al(OH)3 in NaOH solutions taking care to establish equilibrium from both under- and oversaturation. Rapid equilibration was enabled by use of a highly pure and crystalline synthetic nano-gibbsite of well-defined particle size and shape. Measured dissolved aluminum concentrations were compared with those predicted by an α-Al(OH)3 solubility model derived for simple Al(OH)4-/OH- systems. Specific anion effects were expressed as an enhancement factor (Alenhc) conveying the excess of dissolved aluminum. At 45 °C, NaNO2 and NaNO3-containing systems exhibited Alenhc values of 2.70 and 1.88, respectively, indicating significant enhancement. The solutions were examined by Raman and high-field 27Al NMR spectroscopy, indicating specific interactions including Al(OH)4--Na+ contact ion pairing and Al(OH)4--NO2-/NO3- ion-ion interactions. Dynamic evolution of the α-Al(OH)3 particles including growth and agglomeration was observed revealing the importance of dissolution/reprecipitation in establishing equilibrium. These studies indicate that incomplete ion hydration, as a result of the low water activity in these concentrated electrolytes, results in: (i) enhanced reactivity of the hydroxide ion with respect to α-Al(OH)3; (ii) increased concentrations of Al(OH)4- in solution; and (iii) stronger ion-ion interactions that act to stabilize the supersaturated solutions. This information on the mechanisms by which α-Al(OH)3 becomes supersaturated is essential for more energy-efficient aluminum processing technologies, including the treatment of millions of gallons of Al(OH)4--rich high-level radioactive waste.
Collapse
Affiliation(s)
- Mateusz Dembowski
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Song X, Cheng P, Wang HF, Guo XX, Lü YY, Liu HM, Liu LJ, Zhang CX, Zhao YQ, Kou JX, Wang HW, Gong MQ. [Study on insecticide resistance of Culex pipiens pallens in southwest region of Shandong Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 32:69-72. [PMID: 32185930 DOI: 10.16250/j.32.1374.2018261] [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: 06/10/2023]
Abstract
OBJECTIVE To explore the sensitivity of Culex pipiens pallens to common chemical insecticides in the southwestern region of Shandong Province, so as to provide a theoretical basis for the development of reasonable and effective mosquito control measures. METHODS The resistance of Cx. pipiens pallens larvae to 5 chemical insecticides, such as cypermethrin, deltamethrin, DDVP, propoxur, and acetofenate were tested by using the WHO biological test method in 2018, and the co-toxicity coefficients after compounding the above-mentioned insecticides were tested by using a drug compounding method. RESULTS The resistance indexes of Cx. pipiens pallens to cypermethrin, deltamethrin, DDVP, propoxur, and acetofenate in 3 cities were 144.43-557.54, 118.17-445.33, 6.44-19.00, 2.37-8.10, and 0.88-2.98, respectively, and expect the difference between the DDVP resistances of Cx. pipiens pallens in Jining City and Heze City was not statistically significant (P > 0.05), all the other differences were statistically significant (all P < 0.05). The synergistic coefficients of cypermethrin + DDVP, cypermethrin + propoxur, DDVP + acetofenate, and propoxur + acetofenate were 199.58 - 456.95, 190.56 - 292.37, 123.32 - 319.24, and 192.31 - 367.32, respectively. The lower synergism was observed by using the mixture of DDVP + propoxur (synergistic coefficient: 99.87-108.36) . CONCLUSIONS After decades of chemical control, Cx. pipiens pallens in the southwestern region of Shandong Province has produced different degrees of resistance to common chemical insecticides. Therefore, comprehensive control measures should be taken to control mosquito breeding and prevent the development of insecticide resistance.
Collapse
Affiliation(s)
- X Song
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, China
| | - P Cheng
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - H F Wang
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - X X Guo
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - Y Y Lü
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - H M Liu
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - L J Liu
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - C X Zhang
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - Y Q Zhao
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - J X Kou
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - H W Wang
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - M Q Gong
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| |
Collapse
|
24
|
Brady A, Sun W, Durham JL, Takeuchi ES, Takeuchi KJ, Marschilok AC, Naguib M, Vlcek L, Wang HW. Stacking faults in layered electrode materials: developments in structure solutions for diffraction data. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s0108767319097587] [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: 11/10/2022] Open
|
25
|
Wang HW, Graham TR, Mamontov E, Page K, Stack AG, Pearce CI. Countercations Control Local Specific Bonding Interactions and Nucleation Mechanisms in Concentrated Water-in-Salt Solutions. J Phys Chem Lett 2019; 10:3318-3325. [PMID: 31145618 DOI: 10.1021/acs.jpclett.9b01416] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
One of the continuing challenges presented in salt solutions is understanding ion association reactions driving dynamic demixing from solvation, complexation, and solute clustering. The problems understanding this phenomenon are exacerbated in the highly concentrated water-in-salt solutions, where the deficiency of water leads to a dramatic retardation of water solvent and formation of extended solvent-solute clustering networks. By probing microscopic dynamics of water and prenucleation clusters using quasi-elastic neutron scattering and proton nuclear magnetic resonance spectroscopy, we observed contrasting mechanistic specifics of ion-water mobilities in highly concentrated Na+- versus K+-based aluminate solutions (diffusion coefficients of 0.2 vs 2.6 × 10-10 m2 s-1 at 293 K, respectively). The magnitude of the differences is far beyond countercations acting as simple innocent charge-balancing species or water solvents functioning as a simple medium for ion diffusion. The distinct crystallization mechanisms observed further imply that different prenucleation cluster dynamics can either frustrate or promote crystallization, as described by nonclassical nucleation theory.
Collapse
Affiliation(s)
| | - Trent R Graham
- Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| | | | | | | | - Carolyn I Pearce
- Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| |
Collapse
|
26
|
Semrouni D, Wang HW, Clark SB, Pearce CI, Page K, Schenter G, Wesolowski DJ, Stack AG, Clark AE. Resolving local configurational contributions to X-ray and neutron radial distribution functions within solutions of concentrated electrolytes - a case study of concentrated NaOH. Phys Chem Chem Phys 2019; 21:6828-6838. [PMID: 30620014 DOI: 10.1039/c8cp06802j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Extreme conditions of complex materials often lead to a manifold of local environments that challenge characterization and require new advances at the intersection of modern experimental and theoretical techniques. In this contribution, highly caustic and viscous aqueous NaOD solutions were characterized with a combination of X-ray and neutron radial distribution function (RDF) analyses, molecular dynamics simulations and sub-ensemble analysis. While this system has been the topic of some study, the current work expands upon the state of knowledge regarding the extent to which water is perturbed within this chemically extreme solution. Further, we introduce analyses that goes beyond merely identifying the different local environments (ion solvation and coordination environments) that are present, but toward understanding their relative contributions to the ensemble solution RDF. This integrated approach yields unique insight into the experimental sensitivity of RDFs to changes in local geometries, the composition of solvation environments about ions, and the challenge of experimentally differentiating the ensemble of all superimposed local environments-a feature of increasing importance within the extreme condition of high ionic strength.
Collapse
Affiliation(s)
- David Semrouni
- Department of Chemistry and the Materials Science and Engineering Program, Washington State University, Pullman, WA 99164, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Tao MM, Zhang N, Zou H, Ma HM, Li DM, Wang HW. [Comparison of etiology and incidence of pulmonary infection in patients with esophageal carcinoma accompanied by esophagotracheal fistula before and after the airway stent implantation]. Zhonghua Yi Xue Za Zhi 2019; 99:764-766. [PMID: 30884631 DOI: 10.3760/cma.j.issn.0376-2491.2019.10.011] [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: 06/09/2023]
Abstract
Objective: To compare the etiology and incidence of pulmonary infection in patients with esophageal carcinoma accompanied by esophagotracheal fistula before and after the airway stent implantation. Methods: The clinical records of patients with esophageal carcinoma accompanied by esophagotracheal fistula in Respiratory Department and Oncology Department of Meitan General Hospital were retrospectively analyzed from March 2008 to January 2018. The demographic data, comorbidities, pathological results and etiology were collected before and after tracheal stents were implanted in all patients. The incidence of pulmonary infection was analyzed, and the classification of etiology was compared before and after tracheal stents implantation. Results: A total of 100 patients were included in the study. The incidence rate of pulmonary infection before stents implantation was 83.0%. A total of 105 bacterial strains were cultured, including 73 strains of gram-negative bacteria (69.5%) and mainly pseudomonas aeruginosa, 5 strains of gram-positive bacteria [all methicillin-resistant staphylococcus aureus (MRSA)] (4.8%), and 27 strains of fungi (25.7%) and mainly candida albicans. The incidence rate of pulmonary infection was lowered to 53.0% after tracheal stents implantation (χ(2)=29.102, P<0.001). A total of 79 bacterial strains were cultured, and the main bacteria were still gram-negative bacteria and fungi, in which pseudomonas aeruginosa and candida albicans accounted for the majority. However, 13 strains of MRSA were cultured (16.5%), significantly higher than those before stents implantation (χ(2)=7.451, P=0.005). Conclusions: The incidence rate of pulmonary infection in patients with esophageal carcinoma accompanied by esophagotracheal fistula is very high. Gram-negative bacteria and fungi are the main etiologies. Tracheal stents implantation can effectively reduce the incidence of pulmonary infection. However, the incidence rate of MRSA is significantly increased after stents implantation.
Collapse
Affiliation(s)
- M M Tao
- Department of Respiratory, Emergency General Hospital, Beijing 100028, China
| | - N Zhang
- Department of Oncology, Emergency General Hospital, Beijing 100028, China
| | - H Zou
- Department of Oncology, Emergency General Hospital, Beijing 100028, China
| | - H M Ma
- Department of Oncology, Emergency General Hospital, Beijing 100028, China
| | - D M Li
- Department of Oncology, Emergency General Hospital, Beijing 100028, China
| | - H W Wang
- Department of Oncology, Emergency General Hospital, Beijing 100028, China
| |
Collapse
|
28
|
Liu T, Gautam S, Wang HW, Anovitz LM, Mamontov E, Allard LF, Cole DR. Structure and dynamics of water on the forsterite surface. Phys Chem Chem Phys 2018; 20:27822-27829. [PMID: 30382264 DOI: 10.1039/c8cp05075a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The behavior of water on mineral surfaces is the key to understanding interfacial and chemical reaction processes. Olivine is one of the major rock-forming minerals and its interaction with water is a ubiquitous phenomenon both on Earth's surface and in the subsurface. This work presents a combined study using molecular dynamics (MD) simulations and quasi-elastic neutron scattering (QENS) experiments conducted using three different instruments to study the structure and dynamics of water on the forsterite (Mg-end member of olivine) surface at 270 K. A combination of three different QENS instruments probes dynamical processes occurring across a broad range of time scales (∼1 ps to ∼1 ns in this study). The water structure on the hydroxylated surface is composed of three distinct water layers, transitioning from well-ordered and nearly immobile closest to the surface to a less structured layer. The energies of three motions (including translation and rotation) derived from simulations agree well with the experiments, covering the energy range from a few to hundreds of micro electron volts.
Collapse
Affiliation(s)
- Tingting Liu
- School of Earth Sciences, The Ohio State University, 125 South Oval Mall, Columbus, OH 43210, USA.
| | | | | | | | | | | | | |
Collapse
|
29
|
Graham TR, Semrouni D, Mamontov E, Ramirez-Cuesta AJ, Page K, Clark A, Schenter GK, Pearce CI, Stack AG, Wang HW. Coupled Multimodal Dynamics of Hydrogen-Containing Ion Networks in Water-Deficient, Sodium Hydroxide-Aluminate Solutions. J Phys Chem B 2018; 122:12097-12106. [DOI: 10.1021/acs.jpcb.8b09375] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Trent R. Graham
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - David Semrouni
- Department of Chemistry and the Materials Science and Engineering Program, Washington State University, Pullman, Washington 99164, United States
| | | | | | | | - Aurora Clark
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Chemistry and the Materials Science and Engineering Program, Washington State University, Pullman, Washington 99164, United States
| | - Gregory K. Schenter
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Carolyn I. Pearce
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | | | | |
Collapse
|
30
|
Wang HW, Li LL, Li ZS, Cheng LN. [Effects of patient-controlled intravenous analgesia using hydromorphone supplement with dexmedetomidine on patients undergoing transcatheter arterial chemoembolization]. Zhonghua Zhong Liu Za Zhi 2018; 40:626-630. [PMID: 30139035 DOI: 10.3760/cma.j.issn.0253-3766.2018.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the safety and efficiency of patient-controlled intravenous analgesia (PCIA) using hydromorphone supplement with dexmedetomidine on patients undergoing transcatheter arterial chemoembolization. Methods: One hundred and eighty patients, age ranged from 40 to 65 years, body mass index from 18 to 25 kg/m(2,) ASA physical status Ⅱ-Ⅲ, who were scheduled for transcatheter arterial chemoembolization (TACE) under monitor anesthesia care (MAC) were randomly divided into 3 groups: hydromorphone group (H group), hydromorphone supplement with dexmedetomidine 1 μg/kg group (D1 group), hydromorphone supplement with dexmedetomidine 2 μg/kg group (D2 group), 60 patients in every group. All the groups of patients received PCIA pump, in the H group, the PCIA reagent was composed of 120 μg/kg hydromorphone and 5 mg tropisetron in 100 ml of normal saline. In comparison, PCIA regiment was composed of 120 μg/kg hydromorphone, 1 μg/kg dexmedetomidine and 5 mg tropisetron in 100 ml of normal saline in the D1 group, while 120 μg/kg hydromorphone, 2 μg/kg dexmedetomidine and 5 mg tropisetron in 100 ml of normal saline in the D2 group. The visual analogue scale (VAS) score, the observer's assessment of alertness/sedation scale (OAA/S) score, patients' satisfaction index, consumption of hydromorphone, the additional dose of morphine, the effective pressing times of PCIA and adverse reactions were recorded in detail at 0, 0.5, 1, 4, 12 and 24 hours after the patients underwent TACE. Results: The total consumptions of hydromorphone were (4.3±0.1), (4.1±0.1), and (3.8±0.1) mg in group H, D1, and D2, respectively, and the effective pressing times were 13±3, 6±2 and 2±1, the additional doses of morphine were (30±5), (15±3), and (3±1) mg, and adverse reaction rates were 45.0%, 28.3%, and 10.0%, respectively. The manifestations mentioned above in D2 group were significantly lower than those in group H and group D1 (P<0.05). Immediately and 5 min after embolization, at the end of surgery and 0.5, 1, 4, 12 and 24 h after surgery, the VAS scores in the D2 group were 1.9±0.2, 2.1±0.3, 1.8±0.4, 1.8±0.3, 1.7±0.3, 1.6±0.3, 1.3±0.2, 1.3±0.3, respectively, lower than those in group H and group D1 (P<0.05); The satisfaction index in D2 group at these times were 8.7±1.1, 8.9±0.8, 9.2±0.9, 9.0±0.7, 9.1±0.8, 9.0±0.6, 9.1±0.7, 9.2±0.9, respectively, higher than those in group H and group D1 (P<0.05). No breath depression happened in these three groups. Conclusion: The formula of hydromorphone combined with dexmedetomidine to patients undergoing TACE is greatly safe and efficient, with advantages in alleviating pain, reducing hydromorphone consumption and the incidence of adverse reaction of hydromorphone, and without breath depression.
Collapse
Affiliation(s)
- H W Wang
- Department of Anesthesiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L L Li
- Department of Anesthesiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z S Li
- Department of Anesthesiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L N Cheng
- Department of Gastroenterology, People's Hospital of Henan Province, Zhengzhou 450003, China
| |
Collapse
|
31
|
Wang HW, Vlcek L, Neuefeind JC, Page K, Irle S, Simonson JM, Stack AG. Decoding Oxyanion Aqueous Solvation Structure: A Potassium Nitrate Example at Saturation. J Phys Chem B 2018; 122:7584-7589. [PMID: 29991255 DOI: 10.1021/acs.jpcb.8b05895] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The ability to probe the structure of a salt solution at the atomic scale is fundamentally important for our understanding of many chemical reactions and their mechanisms. The capability of neutron diffraction to "see" hydrogen (or deuterium) and other light isotopes is exceptional for resolving the structural complexity around the dissolved solutes in aqueous electrolytes. We have made measurements using oxygen isotopes on aqueous nitrate to reveal a small hydrogen-bonded water coordination number (3.9 ± 1.2) around a nitrate oxyanion. This is compared to estimates made using the existing method of nitrogen isotope substitution and those of computational simulations (>5-6 water molecules). The low water coordination number, combined with a comparison to classical molecular dynamics simulations, suggests that ion-pair formation is significant. This insight demonstrates the utility of experimental diffraction data for benchmarking atomistic computer simulations, enabling the development of more accurate intermolecular potentials.
Collapse
|
32
|
Graham TR, Dembowski M, Martinez-Baez E, Zhang X, Jaegers NR, Hu J, Gruszkiewicz MS, Wang HW, Stack AG, Bowden ME, Delegard CH, Schenter GK, Clark AE, Clark SB, Felmy AR, Rosso KM, Pearce CI. In Situ 27Al NMR Spectroscopy of Aluminate in Sodium Hydroxide Solutions above and below Saturation with Respect to Gibbsite. Inorg Chem 2018; 57:11864-11873. [PMID: 30036042 DOI: 10.1021/acs.inorgchem.8b00617] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Trent R. Graham
- The Voiland School of Chemical and Biological Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Mateusz Dembowski
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Ernesto Martinez-Baez
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Xin Zhang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Nicholas R. Jaegers
- The Voiland School of Chemical and Biological Engineering, Washington State University, Pullman, Washington 99164, United States
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jianzhi Hu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | | | - Hsiu-Wen Wang
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Andrew G. Stack
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Mark E. Bowden
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | | | - Gregory K. Schenter
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Aurora E. Clark
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Sue B. Clark
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Andrew R. Felmy
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Kevin M. Rosso
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Carolyn I. Pearce
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| |
Collapse
|
33
|
Alduino C, Alessandria F, Alfonso K, Andreotti E, Arnaboldi C, Avignone FT, Azzolini O, Balata M, Bandac I, Banks TI, Bari G, Barucci M, Beeman JW, Bellini F, Benato G, Bersani A, Biare D, Biassoni M, Bragazzi F, Branca A, Brofferio C, Bryant A, Buccheri A, Bucci C, Bulfon C, Camacho A, Caminata A, Canonica L, Cao XG, Capelli S, Capodiferro M, Cappelli L, Cardani L, Cariello M, Carniti P, Carrettoni M, Casali N, Cassina L, Cereseto R, Ceruti G, Chiarini A, Chiesa D, Chott N, Clemenza M, Conventi D, Copello S, Cosmelli C, Cremonesi O, Crescentini C, Creswick RJ, Cushman JS, D'Addabbo A, D'Aguanno D, Dafinei I, Datskov V, Davis CJ, Del Corso F, Dell'Oro S, Deninno MM, Di Domizio S, Di Vacri ML, Di Paolo L, Drobizhev A, Ejzak L, Faccini R, Fang DQ, Faverzani M, Ferri E, Ferroni F, Fiorini E, Franceschi MA, Freedman SJ, Fujikawa BK, Gaigher R, Giachero A, Gironi L, Giuliani A, Gladstone L, Goett J, Gorla P, Gotti C, Guandalini C, Guerzoni M, Gutierrez TD, Haller EE, Han K, Hansen EV, Heeger KM, Hennings-Yeomans R, Hickerson KP, Huang HZ, Iannone M, Ioannucci L, Kadel R, Keppel G, Kogler L, Kolomensky YG, Leder A, Ligi C, Lim KE, Liu X, Ma YG, Maiano C, Maino M, Marini L, Martinez M, Martinez Amaya C, Maruyama RH, Mei Y, Moggi N, Morganti S, Mosteiro PJ, Nagorny SS, Napolitano T, Nastasi M, Nisi S, Nones C, Norman EB, Novati V, Nucciotti A, Nutini I, O'Donnell T, Olcese M, Olivieri E, Orio F, Orlandi D, Ouellet JL, Pagliarone CE, Pallavicini M, Palmieri V, Pattavina L, Pavan M, Pedretti M, Pedrotta R, Pelosi A, Pessina G, Pettinacci V, Piperno G, Pira C, Pirro S, Pozzi S, Previtali E, Reindl F, Rimondi F, Risegari L, Rosenfeld C, Rossi C, Rusconi C, Sakai M, Sala E, Salvioni C, Sangiorgio S, Santone D, Schaeffer D, Schmidt B, Schmidt J, Scielzo ND, Singh V, Sisti M, Smith AR, Stivanello F, Taffarello L, Tatananni L, Tenconi M, Terranova F, Tessaro M, Tomei C, Ventura G, Vignati M, Wagaarachchi SL, Wallig J, Wang BS, Wang HW, Welliver B, Wilson J, Wilson K, Winslow LA, Wise T, Zanotti L, Zarra C, Zhang GQ, Zhu BX, Zimmermann S, Zucchelli S. First Results from CUORE: A Search for Lepton Number Violation via 0νββ Decay of ^{130}Te. Phys Rev Lett 2018; 120:132501. [PMID: 29694201 DOI: 10.1103/physrevlett.120.132501] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Indexed: 06/08/2023]
Abstract
The CUORE experiment, a ton-scale cryogenic bolometer array, recently began operation at the Laboratori Nazionali del Gran Sasso in Italy. The array represents a significant advancement in this technology, and in this work we apply it for the first time to a high-sensitivity search for a lepton-number-violating process: ^{130}Te neutrinoless double-beta decay. Examining a total TeO_{2} exposure of 86.3 kg yr, characterized by an effective energy resolution of (7.7±0.5) keV FWHM and a background in the region of interest of (0.014±0.002) counts/(keV kg yr), we find no evidence for neutrinoless double-beta decay. Including systematic uncertainties, we place a lower limit on the decay half-life of T_{1/2}^{0ν}(^{130}Te)>1.3×10^{25} yr (90% C.L.); the median statistical sensitivity of this search is 7.0×10^{24} yr. Combining this result with those of two earlier experiments, Cuoricino and CUORE-0, we find T_{1/2}^{0ν}(^{130}Te)>1.5×10^{25} yr (90% C.L.), which is the most stringent limit to date on this decay. Interpreting this result as a limit on the effective Majorana neutrino mass, we find m_{ββ}<(110-520) meV, where the range reflects the nuclear matrix element estimates employed.
Collapse
Affiliation(s)
- C Alduino
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | | | - K Alfonso
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - E Andreotti
- Dipartimento di Fisica e Matematica, Università dell'Insubria, Como I-22100, Italy
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - C Arnaboldi
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - F T Avignone
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - O Azzolini
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | - M Balata
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - I Bandac
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - T I Banks
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - G Bari
- INFN - Sezione di Bologna, Bologna I-40127, Italy
| | - M Barucci
- Dipartimento di Fisica, Università di Firenze, Firenze I-50125, Italy
- INFN - Sezione di Firenze, Firenze I-50125, Italy
| | - J W Beeman
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F Bellini
- Dipartimento di Fisica, Sapienza Università di Roma, Roma I-00185, Italy
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - G Benato
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - A Bersani
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - D Biare
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Biassoni
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - F Bragazzi
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - A Branca
- INFN - Sezione di Padova, Padova I-35131, Italy
| | - C Brofferio
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - A Bryant
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Buccheri
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - C Bucci
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - C Bulfon
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - A Camacho
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | - A Caminata
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - L Canonica
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - X G Cao
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - S Capelli
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | | | - L Cappelli
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - L Cardani
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - M Cariello
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - P Carniti
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - M Carrettoni
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - N Casali
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - L Cassina
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - R Cereseto
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - G Ceruti
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - A Chiarini
- INFN - Sezione di Bologna, Bologna I-40127, Italy
| | - D Chiesa
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - N Chott
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - M Clemenza
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - D Conventi
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | - S Copello
- INFN - Sezione di Genova, Genova I-16146, Italy
- Dipartimento di Fisica, Università di Genova, Genova I-16146, Italy
| | - C Cosmelli
- Dipartimento di Fisica, Sapienza Università di Roma, Roma I-00185, Italy
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - O Cremonesi
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | | | - R J Creswick
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - J S Cushman
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A D'Addabbo
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - D D'Aguanno
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Dipartimento di Ingegneria Civile e Meccanica, Università degli Studi di Cassino e del Lazio Meridionale, Cassino I-03043, Italy
| | - I Dafinei
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - V Datskov
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - C J Davis
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - F Del Corso
- INFN - Sezione di Bologna, Bologna I-40127, Italy
| | - S Dell'Oro
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Center for Neutrino Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
- INFN - Gran Sasso Science Institute, L'Aquila I-67100, Italy
| | - M M Deninno
- INFN - Sezione di Bologna, Bologna I-40127, Italy
| | - S Di Domizio
- INFN - Sezione di Genova, Genova I-16146, Italy
- Dipartimento di Fisica, Università di Genova, Genova I-16146, Italy
| | - M L Di Vacri
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, L'Aquila I-67100, Italy
| | - L Di Paolo
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Drobizhev
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - L Ejzak
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - R Faccini
- Dipartimento di Fisica, Sapienza Università di Roma, Roma I-00185, Italy
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - D Q Fang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - M Faverzani
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - E Ferri
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - F Ferroni
- Dipartimento di Fisica, Sapienza Università di Roma, Roma I-00185, Italy
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - E Fiorini
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - M A Franceschi
- INFN - Laboratori Nazionali di Frascati, Frascati (Roma) I-00044, Italy
| | - S J Freedman
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B K Fujikawa
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R Gaigher
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - A Giachero
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - L Gironi
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - A Giuliani
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Universit Paris-Saclay, 91405 Orsay, France
| | - L Gladstone
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Goett
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - P Gorla
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - C Gotti
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - C Guandalini
- INFN - Sezione di Bologna, Bologna I-40127, Italy
| | - M Guerzoni
- INFN - Sezione di Bologna, Bologna I-40127, Italy
| | - T D Gutierrez
- Physics Department, California Polytechnic State University, San Luis Obispo, California 93407, USA
| | - E E Haller
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
| | - K Han
- INPAC and School of Physics and Astronomy, Shanghai Jiao Tong University; Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China
| | - E V Hansen
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - R Hennings-Yeomans
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - K P Hickerson
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - H Z Huang
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - M Iannone
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - L Ioannucci
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - R Kadel
- Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - G Keppel
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | - L Kogler
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Yu G Kolomensky
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Leder
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Ligi
- INFN - Laboratori Nazionali di Frascati, Frascati (Roma) I-00044, Italy
| | - K E Lim
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - X Liu
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - Y G Ma
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - C Maiano
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - M Maino
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - L Marini
- INFN - Sezione di Genova, Genova I-16146, Italy
- Dipartimento di Fisica, Università di Genova, Genova I-16146, Italy
| | - M Martinez
- Dipartimento di Fisica, Sapienza Università di Roma, Roma I-00185, Italy
- INFN - Sezione di Roma, Roma I-00185, Italy
- Laboratorio de Fisica Nuclear y Astroparticulas, Universidad de Zaragoza, Zaragoza 50009, Spain
| | - C Martinez Amaya
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - R H Maruyama
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - Y Mei
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - N Moggi
- INFN - Sezione di Bologna, Bologna I-40127, Italy
- Dipartimento di Fisica e Astronomia, Alma Mater Studiorum - Università di Bologna, Bologna I-40127, Italy
| | - S Morganti
- INFN - Sezione di Roma, Roma I-00185, Italy
| | | | - S S Nagorny
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- INFN - Gran Sasso Science Institute, L'Aquila I-67100, Italy
| | - T Napolitano
- INFN - Laboratori Nazionali di Frascati, Frascati (Roma) I-00044, Italy
| | - M Nastasi
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - S Nisi
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - C Nones
- Service de Physique des Particules, CEA / Saclay, 91191 Gif-sur-Yvette, France
| | - E B Norman
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
| | - V Novati
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Universit Paris-Saclay, 91405 Orsay, France
| | - A Nucciotti
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - I Nutini
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- INFN - Gran Sasso Science Institute, L'Aquila I-67100, Italy
| | - T O'Donnell
- Center for Neutrino Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - M Olcese
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - E Olivieri
- Dipartimento di Fisica, Università di Firenze, Firenze I-50125, Italy
- INFN - Sezione di Firenze, Firenze I-50125, Italy
| | - F Orio
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - D Orlandi
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - J L Ouellet
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C E Pagliarone
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Dipartimento di Ingegneria Civile e Meccanica, Università degli Studi di Cassino e del Lazio Meridionale, Cassino I-03043, Italy
| | - M Pallavicini
- INFN - Sezione di Genova, Genova I-16146, Italy
- Dipartimento di Fisica, Università di Genova, Genova I-16146, Italy
| | - V Palmieri
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | - L Pattavina
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - M Pavan
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - M Pedretti
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Pedrotta
- INFN - Sezione di Padova, Padova I-35131, Italy
| | - A Pelosi
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - G Pessina
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | | | - G Piperno
- Dipartimento di Fisica, Sapienza Università di Roma, Roma I-00185, Italy
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - C Pira
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | - S Pirro
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - S Pozzi
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - E Previtali
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - F Reindl
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - F Rimondi
- INFN - Sezione di Bologna, Bologna I-40127, Italy
- Dipartimento di Fisica e Astronomia, Alma Mater Studiorum - Università di Bologna, Bologna I-40127, Italy
| | - L Risegari
- Dipartimento di Fisica, Università di Firenze, Firenze I-50125, Italy
- INFN - Sezione di Firenze, Firenze I-50125, Italy
| | - C Rosenfeld
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - C Rossi
- INFN - Sezione di Genova, Genova I-16146, Italy
| | - C Rusconi
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - M Sakai
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - E Sala
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - C Salvioni
- Dipartimento di Fisica e Matematica, Università dell'Insubria, Como I-22100, Italy
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
| | - S Sangiorgio
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D Santone
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
- Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, L'Aquila I-67100, Italy
| | - D Schaeffer
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - B Schmidt
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Schmidt
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - N D Scielzo
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - V Singh
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - M Sisti
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - A R Smith
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F Stivanello
- INFN - Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy
| | | | - L Tatananni
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - M Tenconi
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Universit Paris-Saclay, 91405 Orsay, France
| | - F Terranova
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - M Tessaro
- INFN - Sezione di Padova, Padova I-35131, Italy
| | - C Tomei
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - G Ventura
- Dipartimento di Fisica, Università di Firenze, Firenze I-50125, Italy
- INFN - Sezione di Firenze, Firenze I-50125, Italy
| | - M Vignati
- INFN - Sezione di Roma, Roma I-00185, Italy
| | - S L Wagaarachchi
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Wallig
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B S Wang
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
| | - H W Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - B Welliver
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Wilson
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - K Wilson
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - L A Winslow
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - T Wise
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - L Zanotti
- INFN - Sezione di Milano Bicocca, Milano I-20126, Italy
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano I-20126, Italy
| | - C Zarra
- INFN - Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila) I-67100, Italy
| | - G Q Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - B X Zhu
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - S Zimmermann
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Zucchelli
- INFN - Sezione di Bologna, Bologna I-40127, Italy
- Dipartimento di Fisica e Astronomia, Alma Mater Studiorum - Università di Bologna, Bologna I-40127, Italy
| |
Collapse
|
34
|
Abstract
Enterovirus type 71 ( EV71) infections are mainly found in infants. The severe cases are characterised by nervous system damage, acute circulatory and respiratory failures. So far, there has been no report of EV71 infection involving central nervous system in teenagers or young adults. We first reported a case of 15-year-old Han Chinese male who was infected by EV71, developed neurogenic pulmonary oedema rapidly, and had the risk factors including hyperglycaemia, significant leukocytosis and acute flaccid paralysis. The nucleic acids for EV71 were positive by Reverse transcriptase polymerase chain reaction (RT-PCR). The patient didn't belong to high risk population. Maculopapular rashes and blisters were also not found in hand, foot and mouth. These might be responsible for the failure to make an early diagnosis. (Hong Kong j.emerg.med. 2014;21:176-180)
Collapse
|
35
|
Muckley ES, Naguib M, Wang HW, Vlcek L, Osti NC, Sacci RL, Sang X, Unocic RR, Xie Y, Tyagi M, Mamontov E, Page KL, Kent PRC, Nanda J, Ivanov IN. Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water. ACS Nano 2017; 11:11118-11126. [PMID: 29019645 DOI: 10.1021/acsnano.7b05264] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Understanding of structural, electrical, and gravimetric peculiarities of water vapor interaction with ion-intercalated MXenes led to design of a multimodal humidity sensor. Neutron scattering coupled to molecular dynamics and ab initio calculations showed that a small amount of hydration results in a significant increase in the spacing between MXene layers in the presence of K and Mg intercalants between the layers. Films of K- and Mg-intercalated MXenes exhibited relative humidity (RH) detection thresholds of ∼0.8% RH and showed monotonic RH response in the 0-85% RH range. We found that MXene gravimetric response to water is 10 times faster than their electrical response, suggesting that H2O-induced swelling/contraction of channels between MXene sheets results in trapping of H2O molecules that act as charge-depleting dopants. The results demonstrate the use of MXenes as humidity sensors and infer potential impact of water on structural and electrical performance of MXene-based devices.
Collapse
Affiliation(s)
- Eric S Muckley
- Bredesen Center for Energy Science and Engineering, University of Tennessee , Knoxville, Tennessee 37996, United States
| | | | | | | | | | | | | | | | | | - Madhusudan Tyagi
- NIST Center for Neutron Research, National Institute of Standards and Technology , 100 Bureau Drive, MS 6100, Gaithersburg, Maryland 20899, United States
- Department of Materials Science, University of Maryland , 4418 Stadium Drive, College Park, Maryland 20740, United States
| | | | | | | | - Jagjit Nanda
- Bredesen Center for Energy Science and Engineering, University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Ilia N Ivanov
- Bredesen Center for Energy Science and Engineering, University of Tennessee , Knoxville, Tennessee 37996, United States
| |
Collapse
|
36
|
Olds D, Peterson PF, Crawford MK, Neilson JR, Wang HW, Whitfield PS, Page K. Combinatorial appraisal of transition states forin situpair distribution function analysis. J Appl Crystallogr 2017. [DOI: 10.1107/s1600576717015163] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In situtotal scattering measurements are increasingly utilized to follow atomic and nanoscale structural details of phase transitions and other transient processes in materials. This contribution presents an automated method and associated tool set to analyze series of diffraction and pair distribution function data with a linear combination of end-member states. It is demonstrated that the combinatorial appraisal of transition states (CATS) software tracks phase changes, relative phase fractions and length scales of interest in experimental data series. It is further demonstrated, using a series of local structure data simulations, that the misfit of such a model can reveal details of phase aggregation and growth related to the pair distribution function's sensitivity to interphase correlations. CATS may be applied to quantitative evaluation of many transient processes, including amorphous-to-crystalline phase transitions, the evolution of solid-solution behaviors, the precipitation and growth of aggregates, and other atomic to nanoscale details of crystallization and phase transformation phenomena.
Collapse
|
37
|
Xue F, Tan YH, Ren FG, Zhang YF, Chen XH, Xu ZF, Chang JM, Xu J, Gao F, Li J, Yin B, Liu HX, Wang HW. [Sensitivity of alternative spliceosomes of L-type PML-RARα fusion gene to ATO]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:554-556. [PMID: 28655105 PMCID: PMC7342965 DOI: 10.3760/cma.j.issn.0253-2727.2017.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - H W Wang
- Department of Hematology, the Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Molecular Diagnosis and Treatment of Blood Diseases, Taiyuan 030001, China
| |
Collapse
|
38
|
Zhao XZ, Gao GL, Wang HW, Li Q, Zhang KS, Zhong H, Wang QG. Effect of photoperiod on serum hormone concentrations during the annual reproductive cycle in geese. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019266. [PMID: 28340262 DOI: 10.4238/gmr16019266] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The poor egg-laying rate of geese hinders the development of the goose industry; therefore, the reproductive performance of geese is an important area of investigation. To evaluate the relationship between photoperiod, reproductive hormones, and reproductive activity during the egg-laying cycle in geese under natural conditions, we collected blood samples from Sichuan white geese and Xupu geese to quantify changes in prolactin (PRL), estradiol (E2), vasoactive intestinal polypeptide (VIP), follicle stimulating hormone (FSH), gonadotropin-inhibitory hormone (GnIH), and luteinizing hormone (LH). We also calculated the rate of egg laying for the two populations during the egg-laying cycle. We show that the egg-laying rate and the serum concentration of some hormones (PRL, E2, VIP, FSH, GnIH, and LH) differed significantly between the two populations during the pre-laying, laying, and ceased-laying periods. Serum LH concentrations may be associated with maturation of the ovary and oviducts, whereas FSH, PRL, and GnIH play important roles in egg laying. These results provide a useful resource for future studies examining the laying rate in geese.
Collapse
Affiliation(s)
- X Z Zhao
- Chongqing Academy of Animal Science, Chongqing, China.,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| | - G L Gao
- Chongqing Academy of Animal Science, Chongqing, China.,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| | - H W Wang
- Chongqing Academy of Animal Science, Chongqing, China.,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| | - Q Li
- Chongqing Academy of Animal Science, Chongqing, China.,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| | - K S Zhang
- Chongqing Academy of Animal Science, Chongqing, China.,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| | - H Zhong
- Chongqing Academy of Animal Science, Chongqing, China.,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| | - Q G Wang
- Chongqing Academy of Animal Science, Chongqing, China .,Chongqing Engineering Research Center of Goose Genetic Improvement, Chongqing, China
| |
Collapse
|
39
|
Gao GL, Wang C, Zhao XZ, Wang HW, Li Q, Li J, Zhang KS, Zhong H, Wang QG. Effects of feeding conditions on gene expression in chicken breast muscle. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019119. [PMID: 28128405 DOI: 10.4238/gmr16019119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Chicken meat quality is becoming increasingly important among breeders and consumers. To understand the effect of feeding conditions on chicken meat quality, we investigated the profiles of genes expressed in chicken breast muscle. Using RNA sequencing, we identified 336, 321, and 387 differentially expressed genes among Chengkou, Daninghe, and Qingjiaoma chickens under scatter- and captivity-feeding conditions. Twenty-two genes differentially expressed between different feeding conditions were shown to be common among the three breeds. Seven of these genes were assessed by real-time quantitative PCR, which confirmed the findings of RNA sequencing and suggested that the results were viable. The differentially expressed genes showed enrichment for a series of significant pathways, including energy metabolism, xenobiotics biodegradation and metabolism, and the immune system. These results provide a solid foundation for elucidating the molecular mechanisms underlying chicken meat quality.
Collapse
Affiliation(s)
| | | | - X Z Zhao
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - H W Wang
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - Q Li
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - J Li
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - K S Zhang
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - H Zhong
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - Q G Wang
- Chongqing Academy of Animal Sciences, Chongqing, China
| |
Collapse
|
40
|
Wang HW, Daemen LL, Cheshire MC, Kidder MK, Stack AG, Allard LF, Neuefeind J, Olds D, Liu J, Page K. Synthesis and structure of synthetically pure and deuterated amorphous (basic) calcium carbonates. Chem Commun (Camb) 2017; 53:2942-2945. [DOI: 10.1039/c6cc08848a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first neutron PDF data on deuterated A(B)CC, shedding new light on H(D)-bearing species in controlling polyamorphism and crystallization processes.
Collapse
Affiliation(s)
- Hsiu-Wen Wang
- Shull Wollan Center
- The University of Tennessee/Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Luke L. Daemen
- Spallation Neutron Source
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | | | | | - Andrew G. Stack
- Chemical Sciences Division
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Lawrence F. Allard
- Materials Science and Technology Division
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Jörg Neuefeind
- Spallation Neutron Source
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Daniel Olds
- Spallation Neutron Source
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Jue Liu
- Spallation Neutron Source
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Katharine Page
- Spallation Neutron Source
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| |
Collapse
|
41
|
Ren L, Wang HW, Xu Y, Feng Y, Zhang HF, Wang KH. Sequencing of Gag/Env association with HIV genotyping resolution and HIV-related epidemiologic studies of HIV in China. Genet Mol Res 2016; 15:gmr-15-gmr15048870. [PMID: 27813592 DOI: 10.4238/gmr15048870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
HIV genotyping has led to conflicting results between laboratories. Therefore, identifying the most accurate gene combinations to sequence remains a priority. Datasets of Chinese HIV subtypes based on several markers and deposited in PubMed, Metstr, CNKI, and VIP databases between 2000 and 2015 were studied. In total, 9177 cases of amplification-positive samples from 26 provinces of China were collected and used to classify HIV subtypes based on eight individual genes or a combination thereof. CRF01_AE, CRF07_BC, CRF08_BC and B were the prevalent HIV subtypes in China, accounting for 84.07% of all genotypes. Gag/Env sequencing classified a greater number of HIV subtypes compared to other genes or combination of gene fragments. The geographical distribution of Gag and Gag/Env genotypes was similar to that observed with all genetic markers. Further principal component analysis showed a significantly different geographical distribution pattern of HIV in China for HIV genotypes detected with Gag/Env, which was in line with the distribution of all HIV genotypes in China. Gag/Env sequences had the highest diversity of the eight markers studied, followed by Gag and Gag/Pol/Env; Pol/Env polymorphisms were the least divergent. Gag/Env can serve as a high-resolution marker for HIV genotyping.
Collapse
Affiliation(s)
- L Ren
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,The First People's Hospital of Yunnan Province, Kunming, Yunnan Province, China.,Medical Faculty of Kunming University of Science and Technology, Kunming, Yunnan Province, China
| | - H W Wang
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Y Xu
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Y Feng
- The First People's Hospital of Yunnan Province, Kunming, Yunnan Province, China
| | - H F Zhang
- The First People's Hospital of Yunnan Province, Kunming, Yunnan Province, China
| | - K H Wang
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China .,Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| |
Collapse
|
42
|
Wang HW, Xu Y, Zhang HF, Zeng YJ, Ren L, Miao YL, Luo HY, Wang KH. Improved protocol for extracting genomic DNA from frozen formalin-fixed tissue resulting in high-quality whole mtDNA. Genet Mol Res 2016; 15:gmr7972. [PMID: 27706610 DOI: 10.4238/gmr.15037972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Formalin fixation and paraffin embedding is widely used for convenient and long-term storage of tumor tissue and precious sources to perform genetic studies. However, DNA fragmentation is one of the major flaws of genomic DNA isolation from formalin fixation tissues, which limits its further usage. Here, we present an improved method for isolating high-quality genomic DNA from formalin fixation tissue. We obtained high-quality genomic DNA of more than 20 kb from samples frozen for more than 2 years. Furthermore, to verify DNA quality, the whole mitochondrial DNA (mtDNA) genomes from the normal and tumor tissue of the same patient were successfully amplified with two overlapping PCR fragments comprising more than 8379 bp in length for each fragment. In addition, the whole genomes were sequenced with a 48-well based primer panel in order to avoid potential sequencing errors from artificial recombination, which was further confirmed with an mtDNA phylogenetic strategy. Our improved DNA extraction method from formalin fixation tissue and sequencing strategy for entire mtDNA genomes will generate unambiguous sequence analysis results for clinical samples.
Collapse
Affiliation(s)
- H W Wang
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China.,Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Y Xu
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - H F Zhang
- The First People's Hospital of Yunnan Province, Kunming, Yunnan Province, China
| | - Y J Zeng
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - L Ren
- The First People's Hospital of Yunnan Province, Kunming, Yunnan Province, China
| | - Y L Miao
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - H Y Luo
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - K H Wang
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| |
Collapse
|
43
|
Zhao JX, Chen XH, Li JL, Pan J, Tan YH, Xu ZF, Ren FG, Zhang YF, Xu J, Li MQ, Li J, Zhang N, Chang JM, Wang XJ, Wang HW. [Frequency and clinical features of ASXL2 gene mutation in acute myeloid leukemia patients with AML1- ETO fusion gene positive]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:676-81. [PMID: 27587249 PMCID: PMC7348531 DOI: 10.3760/cma.j.issn.0253-2727.2016.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
目的 探讨伴AML1-ETO融合基因的急性髓系白血病(AML)患者ASXL2基因突变情况、突变阳性患者临床特征及ASXL2基因突变与c-kit基因突变的关系。 方法 采用PCR扩增产物片段直接测序分析法,检测59例伴AML1-ETO融合基因初发AML患者ASXL2基因第11、12外显子编码区突变情况,比较ASXL2基因突变阳性和阴性组患者的临床特征、生存及c-kit基因突变情况。 结果 59例患者中7例存在ASXL2突变,突变率为11.9%。ASXL2基因突变阳性组患者初诊时外周血红蛋白浓度中位数为56.2(38.0~72.0)g/L,显著低于ASXL2突变阴性组患者的69.0(37.2~154.0)g/L,差异有统计学意义(P=0.038);外周血WBC、PLT、嗜酸粒细胞比例、骨髓原始细胞比例与ASXL2突变阴性组相比,差异均无统计学意义(P值均>0.05)。两组均未见肝、脾、中枢神经系统浸润;淋巴结不同程度肿大,但ASXL2基因突变阳性、阴性两组间差异无统计学意义(P=0.859)。免疫表型分析显示:ASXL2基因突变阳性组CD33表达显著低于阴性组(P=0.033);两组患者均未表达cCD3,CD117、cMPO、HLA-DR、CD34、CD38、CD13、CD44、CD15、CD64、CD11b、CD56、CD19、cCD79a、CD7两组表达差异均无统计学意义(P值均>0.05)。ASXL2基因突变阳性与阴性组患者总缓解率、总生存时间差异均无统计学意义(P值分别为0.577、0.631)。两组c-kit基因突变检出率分别为14.3%和29.4%,差异无统计学意义(P=0.697)。 结论 该组伴AML1-ETO融合基因AML患者ASXL2基因突变率为11.9%。ASXL2突变阳性患者外周血红蛋白浓度、CD33表达方面呈现一定的临床特征。ASXL2基因突变与c-kit基因变突可能没有特定的关联性。
Collapse
Affiliation(s)
- J X Zhao
- Department of Hematology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Tian YX, Wang HW, Song XM, Yuan YL. [Lymphoplasmacyte-rich meningioma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2016; 45:488-489. [PMID: 27430701 DOI: 10.3760/cma.j.issn.0529-5807.2016.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
|
45
|
Pan J, Tan YH, Zhao JX, Chen XH, Xu ZF, Xu J, Chang JM, Xue F, Zhang N, Ren FG, Zhang YF, Wang XJ, Wang HW. [Discovery of a novel spliceosome of ABL gene (ABL(Δexon7+35INS)) and its association with TKIs resistance in chronic myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:503-6. [PMID: 27431076 PMCID: PMC7348335 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore whether the ABL(Δexon7) and ABL(35INS) spliceosome contributed to TKIs resistance. METHODS Screening ABL(Δexon7) and ABL(35INS) in 74 normal people and 76 CML patients (53 patients in remission and 23 patients with TKIs resistance) by using polyacrylamide gel electrophoresis combined with cloning sequencing. RESULTS A novel spliceosome ABL(Δexon7+ 35INS) (ABL(Δexon7) and ABL(3)5INS existed at the same time) was identified and the mutation was detected in 8 (10.8%) of 74 normal people, 4 (7.5%) of 53 remission patients and 2 (8.7%) of 23 resistant patients. While 47 (63.5%) cases expressed ABL(Δexon7) and 8 (10.8% ) cases expressed ABL(35INS) in 74 healthy people, 30 (56.6%) cases expressed ABL(Δexon7) and 5 (9.4% ) cases expressed ABL(35INS) in 53 remission patients, 12 (52.2%) cases expressed ABL(Δexon7) and 3(13.0%) cases expressed ABL(35INS) in 23 resistant patients. Three kinds of spliceosome in all groups had no statistical difference. CONCLUSION ABL(Δexon7+ 35INS), ABL(Δexon7) and ABL(35INS) may be not uncommon in ABL gene and were unrelated to resistance in CML with TKIs treatment. ABL(35INS) were often accompanying with exon 7 deletion.
Collapse
Affiliation(s)
- J Pan
- Department of Hematology, the Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Molecular Diagnosis and Treatment of Blood Diseases, Taiyuan 030001, China
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Li YN, Zhou YZ, Zhang N, Wang HW. [Expression of phosphatase and tensin homology deleted on chromosometen (PTEN) in squamous-cell lung cancer and its clinical significance]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:450-3. [PMID: 27289574 DOI: 10.3760/cma.j.issn.1001-0939.2016.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the expression of PTEN in squamous-cell lung cancer(SQCLC) and its clinical significance. METHODS A total of 50 patients with SQCLC, including 43 males, 7 females, aged 40 to 83(average age 66 ) years, in Meitan General Hospital from May 2009 to July 2013 were included. Tumor adjacent tissues from 10 patients, including 9 males, 1 female, aged 42 to 79 (average age 59 )years, and 13 patients with benign pulmonary disease tissues, including 11 males, 2 females, aged 34 to 76 (average age 58 ) years were also included as the controls. The expression of PTEN protein was detected by using immunohistochemistry (S-P)method and compared among SQCLC tissues tumor adjacent tissues and benign disease tissues. The correlations of expression of PTEN protein with gender, age, smoking status, lymph node metastasis, clinical stages and differentiation grades were performed. RESULTS (1) PTEN expression was low in 50 cases SQCLC, while there was a high expression in the tumor adjacent tissues and benign disease tissues. The PTEN protein positive rate of the SQCLC cases (20%, 10/50) was significantly lower than that of cases of tumor adjacent tissues and benign disease tissues (8/10, 12/13), χ(2)=23.542, P<0.01. (2) In the SQCLC group, the expression of PTEN protein was significantly related to differentiation grades and lymph node metastasis (P<0.05), but not gender, age, smoking status, and clinical stages (P>0.05). CONCLUSIONS The lower expression of PTEN in SQCLC was associated with high degree of malignancy and lymph node metastasis. The lost of expression of PTEN may serve as a marker for evaluation of malignancy and an independent factor for prognosis.
Collapse
Affiliation(s)
- Y N Li
- Department of Respiratory Medicine, Meitan General Hospital, Beijing 100028, China
| | | | | | | |
Collapse
|
47
|
Gao YZ, Xing S, Gao K, Zhang JY, Yu ZZ, Shi XJ, Wang HW. [Posterior debridement combined with atlantoaxial fusion to upper cervical tuberculosis]. Zhonghua Wai Ke Za Zhi 2016; 54:451-455. [PMID: 27938580 DOI: 10.3760/cma.j.issn.0529-5815.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore clinical results of posterior debridement combined with atlantoaxial fusion for upper cervical Tuberculosis. Methods: From March 2007 to April 2012, 8 patients with upper cervical Tuberculosis underwent posterior debridement combined with atlantoaxial fusion in our hospital were selected for retrospective analysis. 3 cases were males and 5 females, aged 29-65 (43.5±13.2) years. According to the pedicle destruction, using different screws (pedicle screw or laminar screw) fixation.In the preoperative and final follow-up, Japanese Orthopaedic Association score (JOA) and neck disability index (NDI) were used to evaluate neurological function and calculate improvement rate JOA score. At final follow-up, clinical efficacy was evaluated by Odom's grade. situation of internal fixation, fusion of upper cervical were assessed by imaging examination. During follow-up, complications were documented and analyzed. Results: Postoperatively 12 months, all bony fusion were achieved. Tuberculosis were reached clinical cure in 12-18 months. The JOA score increased from 10.5±2.0 preoperatively to 15.6 ±1.1 in final follow-up(P<0.05), and the NDI decreased from 29.9 ± 6.2 preoperatively to 8.6±1.6 (P<0.05). At last follow-up, according to Odom's standard, excellent were obtained in 6 cases (75.0%), good 1 cases (12.5%) and ordinary 1 case (12.5%). No severe complications was documented during follow-up. Conclusions: The treatment of posterior debridement combine with atlantoaxial fusion, and structure grafting and local anti-Tuberculosis drug using intraoperative, not only could obtain reliable clinical efficacy, completely removal of lesions, but also obtain strong stability, which plays an important role in the treatment of cervical tuberculosis.
Collapse
Affiliation(s)
- Y Z Gao
- Orthopaedic Department of the People's Hospital of Zhengzhou University (Henan Provincial People's Hospital) , Zhengzhou 450003, China
| | | | | | | | | | | | | |
Collapse
|
48
|
Gao GL, Wang HW, Zhao XZ, Li Q, Li J, Li QR, Wang QG. Feeding conditions and breed affect the level of DNA methylation of the mitochondrial uncoupling protein 3 gene in chicken breast muscle. J Anim Sci 2016; 93:1522-34. [PMID: 26020174 DOI: 10.2527/jas.2014-8431] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To investigate the effects of feed condition and breed on the level of DNA methylation for the uncoupling protein 3 (UCP3) gene, which is an important candidate gene for regulating intramuscular fat (IMF) content in chicken breast muscle, breast muscle of Daninghe (DNH) and Qingjiaoma (QJM) chickens under scatter-feed and captivity-feed conditions was analyzed. Using RNA sequencing, 47 and 113 candidate genes were determined to be related to feed conditions and breed, respectively, and 7 differentially expressed genes were confirmed by real-time quantitative PCR, including UCP3. The mRNA levels of UCP3 were significantly different between the 2 feed conditions. The DNA region from bp +1700 to +2459 of the UCP3 gene was studied using the bisulfite sequencing method and contained 46 methylation sites and 3 CpG islands. The results showed that the methylation level of this UCP3 region was lower in DNH chickens (0.77% to 0.88%, P = 0.012) and QJM chickens (0.88% to 0.91%, P = 0.20) under scatter-feed conditions than under captivity-feed conditions. The mean methylation level of UCP3 in DNH chickens was lower than that in QJM chickens under scatter-feed conditions (DNH to QJM, 0.77% to 0.88%, P = 0.007), which suggests that breed affects the mean methylation level of UCP3 under scatter-feed conditions. In summary, our findings suggest that feed condition and breed affect the methylation of UCP3 in chicken breast muscle.
Collapse
|
49
|
Li YN, Zhou YZ, Ma J, Wang HW. [Analysis of the mutations of EGFR and phosphatidylinositol 3-kinase catalytic α-polypeptide and their association with clinicopathological features]. Zhonghua Zhong Liu Za Zhi 2016; 38:130-132. [PMID: 26899333 DOI: 10.3760/cma.j.issn.0253-3766.2016.02.010] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Y N Li
- Department of Medical Oncology, China Meitan General Hospital, Beijing 100028, China
| | - Y Z Zhou
- Department of Medical Oncology, China Meitan General Hospital, Beijing 100028, China
| | - J Ma
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - H W Wang
- Department of Medical Oncology, China Meitan General Hospital, Beijing 100028, China
| |
Collapse
|
50
|
Stack AG, Borreguero JM, Prisk TR, Mamontov E, Wang HW, Vlcek L, Wesolowski DJ. Precise determination of water exchanges on a mineral surface. Phys Chem Chem Phys 2016; 18:28819-28828. [DOI: 10.1039/c6cp05836a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Solvent exchanges on solid surfaces and dissolved ions are a fundamental property important for understanding chemical reactions, but the rates of fast exchanges are poorly constrained.
Collapse
Affiliation(s)
| | - Jose M. Borreguero
- Neutron Data Analysis & Visualization Division
- Oak Ridge National Laboratory
- USA
| | | | - Eugene Mamontov
- Chemical & Engineering Materials Division
- Oak Ridge National Laboratory
- USA
| | - Hsiu-Wen Wang
- UTK/ORNL Shull Wollan Center
- Oak Ridge National Laboratory
- USA
| | - Lukas Vlcek
- UTK/ORNL Joint Institute for Computational Sciences
- USA
| | | |
Collapse
|