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Gao L, Zhuo H, Xu D, Qian B, Gao B. Geochemical characteristics and environmental implication of rare earth elements in sediments from the Three Gorges Reservoir, China. Sci Total Environ 2024; 923:171289. [PMID: 38423315 DOI: 10.1016/j.scitotenv.2024.171289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/21/2024] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
The construction and operation of the Three Gorges Dam occluded sediment transportation in the Yangtze River. However, the sources, transport processes, and environmental impacts of these sediments on the Three Gorges Reservoir (TGR) remain unclear. Here, we used rare earth elements (REEs) to trace the transport pathways of sediments in the TGR, China. Geochemical characteristics including the chemical composition and fractionation, temporal and spatial distribution, and potential sources of REEs were also evaluated in this study. The individual REEs concentration in the TGR sediments followed the Oddo-Harkins rule, with the mean REEs value of 207.33 μg/g. REEs concentrations in the midstream were higher than those in the upstream and downstream of the TGR. Statistical analysis showed that water impoundment phase had no significant influence on the distribution of REEs. TGR sediments are mainly derived from terrigenous detrital particulates, characterized by a distinctive enrichment in light REEs, with its percentage higher than 90 % of the total REEs. The significant positive correlation among the REEs confirmed that they are co-existed and shared the similar sources. Multiple provenance analysis approaches using discriminant function analyses, provenance indices, and La/Yb-La/Sm-Gd/Yb ternary diagrams further indicated that the REEs in sediments originated from the weathering of mudstone in the basin of TGR. After periodic water level fluctuation for more than six years, the chemical compositions of REEs in TGR sediments slightly differed from those of the Yangtze River sediments before TGR construction, but were similar to those of the downstream of the Yangtze River. Therefore, this study indicated that the construction and operation of the TGR changed the chemical compositions and the origin of the sediments in the Yangtze River, which can provide useful insights into the transport pathways of TGR sediments and their impacts on the fluvial environment.
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Affiliation(s)
- Li Gao
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; North China Power Engineering CO., LTD of China Power Engineering Consulting Group, Beijing 100120, China
| | - Haihua Zhuo
- Changjiang Basin Ecology and Environment Monitoring and Scientific Research Center, Changjiang Basin Ecology and Environment Administration, Ministry of Ecology and Environment, Wuhan 430010, China
| | - Dongyu Xu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Bao Qian
- Hydrology Bureau of Changjiang Water Resources Commission, Wuhan, Hubei 430010, PR China
| | - Bo Gao
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China.
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Yan W, He X, Chen M, Qian B, Li M, Yan Y, Lin C, Mao Z. High arsenic pollution of the eutrophic Lake Taihu and its relationship with iron, manganese, and dissolved organic matter: High-resolution synchronous analysis. J Hazard Mater 2024; 467:133644. [PMID: 38330646 DOI: 10.1016/j.jhazmat.2024.133644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/12/2024] [Accepted: 01/26/2024] [Indexed: 02/10/2024]
Abstract
Arsenic (As) is a metalloid that can accumulate in eutrophic lakes and cause adverse health effects to people worldwide. However, the seasonal process and dynamic mechanism for As mobilization in eutrophic lake remains effectively unknown. Here we innovatively used the planar optodes (PO), high-resolution dialysis (HR-Peeper) combined with fluorescence excitation-emission matrix coupled with parallel factor (EEM-PARAFAC) analysis technologies. We synchronously investigate monthly O2, As, iron (Fe), manganese (Mn), and naturally occurring dissolved organic matter (DOM) changes in sediments of Lake Taihu at high resolution in field conditions. We find high As contamination from sediments with 61.88-327.07 μg m-2 d-1 release As fluxes during the algal bloom seasons from May to October 2021. Our results show that an increase in DOM, mainly for humic-like components, resulting in high electron transfer capacity (ETC), promoted the reductive dissolution of Fe and Mn oxides to release As. Partial least square-path modeling (PLS-PM) and random forest modeling analysis identified that Mn oxide reductive dissolution directly accelerated sediments As contamination, which is the crucial factor. Understanding crucial factor controlling As release is especially essential in areas of eutrophic lakes developing effective strategies to manage As-rich eutrophic lake sediments worldwide.
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Affiliation(s)
- Wenming Yan
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China
| | - Xiangyu He
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China
| | - Musong Chen
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Bao Qian
- Bureau of Hydrology, Changjiang Water Resources Commission, Wuhan 430010, China
| | - Minjuan Li
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China
| | - Yulin Yan
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China
| | - Chen Lin
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zhigang Mao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
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He D, Li Y, Yuan C, Pei X, Damaris RN, Yu H, Qian B, Liu Y, Yi B, Huang C, Zeng J. Characterization of the CMS genetic regulation through comparative complete mitochondrial genome sequencing in Nicotiana tabacum. Plant Genome 2024; 17:e20409. [PMID: 37961811 DOI: 10.1002/tpg2.20409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 10/01/2023] [Accepted: 10/14/2023] [Indexed: 11/15/2023]
Abstract
Mitochondrial genomes (mitogenomes) of flowering plants vary greatly in structure and size, which can lead to frequent gene mutation, rearrangement, or recombination, then result in the cytoplasmic male sterile (CMS) mutants. In tobacco (Nicotiana tabacum), suaCMS lines are widely used in heterosis breeding; however, the related genetic regulations are not very clear. In this study, the cytological observation indicated that the pollen abortion of tobacco suaCMS(HD) occurred at the very early stage of the stamen primordia differentiation. In this study, the complete mitochondrial genomes of suaCMS(HD) and its maintainer HD were sequenced using the PacBio and Illumina Hiseq technology. The total length of the assembled mitogenomes of suaCMS(HD) and HD was 494,317 bp and 430,694 bp, respectively. Comparative analysis indicated that the expanded 64 K bases in suaCMS(HD) were mainly located in noncoding regions, and 23 and 21 big syntenic blocks (>5000 bp) were found in suaCMS(HD) and HD with a series of repeats. Electron transport chain-related genes were highly conserved in two mitogenomes, except five genes (ATP4, ATP6, COX2, CcmFC, and SDH3) with substantial substitutions. Three suaCMS(HD)-specific genes, orf261, orf291, and orf433, were screened. Sequence analysis and RT-PCR verification showed that they were unique to suaCMS(HD). Further gene location analysis and protein property prediction indicated that all the three genes were likely candidates for suaCMS(HD). This study provides new insight into understanding the suaCMS mechanism and is useful for improving tobacco breeding.
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Affiliation(s)
- Dongli He
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Yifan Li
- National Key Laboratory of Crop Genetic Improvement, National Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, China
| | - Cheng Yuan
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Xiaoxiong Pei
- National Key Laboratory of Crop Genetic Improvement, National Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, China
| | | | - Haiqin Yu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Bao Qian
- National Key Laboratory of Crop Genetic Improvement, National Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, China
| | - Yong Liu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Bin Yi
- National Key Laboratory of Crop Genetic Improvement, National Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, China
| | - Changjun Huang
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Jianmin Zeng
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
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Qian B, Chen ZJ, Wang YS, Hu XY, Hu XB, Zheng YH. Clinical efficacy and mechanism study of mid-frequency anti-snoring device in treating moderate obstructive sleep apnea-hypopnea syndrome. World J Clin Cases 2024; 12:942-950. [PMID: 38414605 PMCID: PMC10895626 DOI: 10.12998/wjcc.v12.i5.942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/14/2023] [Accepted: 01/23/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Obstructive sleep apnea-hypopnea syndrome (OSAHS) is primarily caused by airway obstruction due to narrowing and blockage in the nasal and nasopharyngeal, oropharyngeal, soft palate, and tongue base areas. The mid-frequency anti-snoring device is a new technology based on sublingual nerve stimulation. Its principle is to improve the degree of oropharyngeal airway stenosis in OSAHS patients under mid-frequency wave stimulation. Nevertheless, there is a lack of clinical application and imaging evidence. AIM To investigate the clinical efficacy and mechanisms of a mid-frequency anti-snoring device in treating moderate OSAHS. METHODS We selected 50 patients diagnosed with moderate OSAHS in our hospital between July 2022 and August 2023. They underwent a 4-wk treatment regimen involving the mid-frequency anti-snoring device during nighttime sleep. Following the treatment, we monitored and assessed the sleep apnea quality of life index and Epworth Sleepiness Scale scores. Additionally, we performed computed tomography scans of the oropharynx in the awake state, during snoring, and while using the mid-frequency anti-snoring device. Cross-sectional area measurements in different states were taken at the narrowest airway point in the soft palate posterior and retrolingual areas. RESULTS Compared to pretreatment measurements, patients exhibited a significant reduction in the apnea-hypopnea index, the percentage of time with oxygen saturation below 90%, snoring frequency, and the duration of the most prolonged apnea event. The lowest oxygen saturation showed a notable increase, and both sleep apnea quality of life index and Epworth Sleepiness Scale scores improved. Oropharyngeal computed tomography scans revealed that in OSAHS patients cross-sectional areas of the oropharyngeal airway in the soft palate posterior area and retrolingual area decreased during snoring compared to the awake state. Conversely, during mid-frequency anti-snoring device treatment, these areas increased compared to snoring. CONCLUSION The mid-frequency anti-snoring device demonstrates the potential to enhance various sleep parameters in patients with moderate OSAHS, thereby improving their quality of life and reducing daytime sleepiness. These therapeutic effects are attributed to the device's ability to ameliorate the narrowing of the oropharynx in OSAHS patients.
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Affiliation(s)
- Bao Qian
- Pulmonary Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai 201505, China
| | - Zhan-Jun Chen
- Pulmonary Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai 201505, China
| | - Yong-Sheng Wang
- Radiology Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai 201505, China
| | - Xiao-Yan Hu
- Pulmonary Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai 201505, China
| | - Xiao-Biao Hu
- Pulmonary Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai 201505, China
| | - Yong-Hua Zheng
- Pulmonary Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai 201505, China
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Chen Y, Tang F, Yin XQ, Han ZD, Qian B, Zhao W, Jiang XF, Fang Y, You L. Magnetic properties and critical behaviors of the nodal-line semimetal candidate ErIn 3. J Phys Condens Matter 2023; 36:055801. [PMID: 37875140 DOI: 10.1088/1361-648x/ad0674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/24/2023] [Indexed: 10/26/2023]
Abstract
The AuCu3-type intermetallic compoundsReIn3(Re= a rare earth ion) with type-IV magnetic space groups are predicted to show topologically nontrivial electronic states. Here, we grow ErIn3single crystals, and study their magnetic properties and critical behaviors by means of the magnetic susceptibility, and magnetization isotherm measurements. Combining a detailed analysis of the magnetic susceptibility and isothermal magnetization, we find that this compound harbors a complicated magnetic phase diagram, and its magnetic moment arrangement appears not to simply follow the fashion as observed in the isostructural counterpart GdIn3(it adopts a conventional type-Cmagnetic structure that belongs to type-IV magnetic space groups). A careful study of the magnetic properties around the antiferromagnetic (AFM)-paramagnetic transition yields the critical exponentsβ= 0.309 (0.297),γ= 1.117 (1.038), andδ= 4.617 (4.454), indicating that the tricritical mean field model or the three-dimensional Ising model works for ErIn3's magnetic behaviors and the presence of a long-range AFM interaction therein. Besides, the exchange interaction distanceJ(r) ∼r-4.665as well confirms a long-range magnetic coupling in ErIn3. Our results offer the clues that the magnetic structure varies from one member ofReIn3family to another, and to confirm their electronic features in the AFM phases further experimental and theoretical studies are still desired.
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Affiliation(s)
- Y Chen
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, People's Republic of China
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - F Tang
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, People's Republic of China
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - X-Q Yin
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy and Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Z-D Han
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - B Qian
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - W Zhao
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - X-F Jiang
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - Y Fang
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - L You
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, People's Republic of China
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Tang F, Chen Y, Ge XL, Meng WZ, Han ZD, Qian B, Zhao W, Jiang XF, Fang Y, Ju S. Anisotropic magnetoresistance and electronic features of the candidate topological compound praseodymium monobismuthide. Phys Chem Chem Phys 2023; 25:25573-25580. [PMID: 37721039 DOI: 10.1039/d3cp03480a] [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: 09/19/2023]
Abstract
PrBi, a sister member of the rare-earth monopnictide family, is an excellent candidate for studying extreme magnetoresistance and nontrivial topological electronic states. In this study, we perform angular magnetoresistance measurements as well as bulk and surface band structure calculations on this compound. PrBi's magnetoresistance is revealed to be significantly angle-dependent and shows a fourfold symmetry as always observed in the nonmagnetic isostructural counterparts, including LaSb, LaBi, and LuBi. Its angular magnetoresistance can be reproduced well using the semiclassical two-band model. The deduced parameters suggest that PrBi hosts an elongated electron pocket with a mobility anisotropy of ∼3.13 and is slightly uncompensated in its carrier concentration. Our bulk and surface band structure calculations confirm the anisotropic electronic features. Moreover, we reveal that a nodal-line-shaped surface state appears at the X̄ point, and is associated with the quadratic dispersion along the -X̄ direction, and the linear type-I Dirac dispersion along the X̄-M̄ direction. Owing to the type-I Dirac dispersion feature, PrBi could serve as a promising material platform for studying many unexpected physical properties, such as the highly anisotropic transport and valley polarization of electrons.
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Affiliation(s)
- F Tang
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China.
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - Y Chen
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China.
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - X-L Ge
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - W-Z Meng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Z-D Han
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - B Qian
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - W Zhao
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - X-F Jiang
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - Y Fang
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - S Ju
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China.
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Wang XP, Ma Y, Lv J, Liang Y, Jin L, Lu WH, Liang CN, Qian B, Li Z. Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function. Ren Fail 2022; 44:2085-2092. [DOI: 10.1080/0886022x.2022.2148537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Xiao-Pei Wang
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ying Ma
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jing Lv
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yu Liang
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Li Jin
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wan-Hong Lu
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Chang-Na Liang
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Bao Qian
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zhao Li
- Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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Jiang J, Pan H, Chen H, Song L, Wang Y, Qian B, Chen P, Fan S, Lin X. Comparative Efficacy of Pharmacological Therapies for Low Back Pain: A Bayesian Network Analysis. Front Pharmacol 2022; 13:811962. [PMID: 35250562 PMCID: PMC8892951 DOI: 10.3389/fphar.2022.811962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/07/2022] [Indexed: 11/13/2022] Open
Abstract
Low back pain (LBP) is a common problem, but the efficacy of pharmacological therapies remains controversial. Therefore, we aimed to comprehensively evaluate and quantitatively rank various pharmacological therapies for patients with low back pain. Two meta-analyses were performed: an initial pair-wise meta-analysis, followed by network meta-analysis using a random-effects Bayesian model. We included randomized controlled trials comparing placebos, non-steroidal anti-inflammatory drugs, opioids, skeletal muscular relaxants, pregabalin (or gabapentin), and some drug combinations. The primary and secondary outcomes were pain intensity and physical function. Eighty-eight eligible trials with 21,377 patients were included. Here, we show that only skeletal muscle relaxants significantly decreased the pain intensity of acute (including subacute) low back pain. Several kinds of drugs significantly decreased the pain of chronic low back pain, but only opioids and cyclo-oxygenase 2-selective non-steroidal anti-inflammatory drugs effectively reduced pain and improved function. Pregabalin (or gabapentin) seemed to be an effective treatment to relieve pain, but it should be used with caution for low back pain.
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Affiliation(s)
- Jiuzhou Jiang
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Hao Pan
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Haomai Chen
- Department of Cardiovascular Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | | | - Yiyun Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Bao Qian
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Pengfei Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Xianfeng Lin
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
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Jiang K, Wang Y, Jiang Z, Qian B. Study of the Void Structure of PAN Fiber by Small Angle x-ray Scattering and Spline Function. INT POLYM PROC 2022. [DOI: 10.1515/ipp-1987-0031] [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: 11/15/2022]
Abstract
Abstract
The voids in fibers, especially in wet spun fibers are a major factor of fiber structure which greatly affects the fiber properties. A lot of research has shown that the inner voids and surface imperfections were the main causes of strength decreases. Therefore it is very important to determine the void morphology development in fiber processing in order to obtain high quality as-spun fiber.
In this paper we introduce a new method for the determination of void morphology using small angle x-ray scattering with a spline function method in which the average void size, size distribution and the related scattering power as well is obtained.
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Affiliation(s)
- K. Jiang
- Man-made Fiber Research Institute, China Textile University , Shanghai , China
| | - Y. Wang
- Man-made Fiber Research Institute, China Textile University , Shanghai , China
| | - Z. Jiang
- Man-made Fiber Research Institute, China Textile University , Shanghai , China
| | - B. Qian
- Man-made Fiber Research Institute, China Textile University , Shanghai , China
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10
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Wang B, Xu YD, Shao S, Zhai LS, Qian B, Zhang FF, Wang JF, Shao XL, Wang YT. [Association between inflammation activity of left atrial epicardial adipose tissue measured by 18F-FDG PET/CT and atrial fibrillation]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:1213-1219. [PMID: 34905899 DOI: 10.3760/cma.j.cn112148-20211026-00913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the association between inflammation activity of left atrial epicardial adipose tissue (LA-EAT) measured by 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) and atrial fibrillation (AF). Methods: A total of 78 patients with AF, who underwent 18F-FDG PET/CT in the Nuclear Medicine Department of the Third Affiliated Hospital of Soochow University due to abnormally elevated levels of tumor indicators or malignant tumors from March 2018 to December 2019, were enrolled in this retrospective study. According to the examination date of PET/CT and basic characteristics of AF patients (gender, age), a 1∶1 propensity score matching was used to enroll a non-AF control group (78 patients). The maximum standard uptake value of left atrial epicardial tissue (LA-EAT FDG SUVmax) and total EAT volume (V-EAT) were measured by 18F-FDG PET/CT. Left ventricular ejection fraction (LVEF) and left atrial diameter (LAD) were obtained by echocardiography. Blood lipids and biomarkers of inflammation were measured. The differences of clinical data and EAT-related indicators were compared between the AF group and control group. Logistic multivariate regression analysis was used to determine the related factors of AF. Then the receiver operating characteristic (ROC) curve was used to determine the cutoff value of LA-EAT FDG SUVmax on the diagnosis of AF. Univariate and multivariate logistic regression analysis were used to analyze the relationship between the increase of LA-EAT FDG SUVmax and AF. Results: The age was (66.9±10.2) years and there were 55 males (70.5%) in the AF group. The age was (66.9±8.0) years, and there were 52 males (66.7%) in the control group (both P>0.05). The LAD ((44.2±5.8) mm vs. (35.4±4.4) mm), V-EAT ((122.1±42.0) cm3 vs. (91.6±34.5) cm3), and LA-EAT FDG SUVmax ((1.6±0.3) vs. (1.4±0.2)) values were significantly higher, while LVEF ((60.1±4.7)% vs. (63.9±2.9)%) was lower in the AF group than in the control group (P all<0.001). Multivariate logistic regression analysis showed that LAD (OR=1.340, 95%CI 1.195-1.502), V-EAT (OR=1.016, 95%CI 1.001-1.031), and LA-EAT FDG SUVmax (OR=1.375, 95%CI 1.095-1.723) were positively correlated with AF, LVEF (OR=0.781, 95%CI 0.659-0.926) was negatively correlated with AF(P all<0.05). The area under the ROC curve of LA-EAT FDG SUVmax for diagnosis of AF was 0.680 (95%CI 0.597-0.764, P<0.001), and the best cut-off value was 1.415 with a sensitivity of 65.4% and specificity of 61.5%. After adjusting for high-density lipoprotein cholesterol, LVEF, LAD and V-EAT, LA-EAT FDG SUVmax≥1.415 was independently associated with AF (OR=2.982, 95%CI 1.122-7.926, P=0.010). Conclusions: The inflammatory activity of LA-EAT measured by 18F-FDG PET/CT is an independent risk factor of AF, and the increased inflammatory activity of LA-EAT is positively correlated with AF.
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Affiliation(s)
- B Wang
- Department of Nuclear Medicine, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou Key Laboratory of Molecular Imaging, Changzhou 213003, China
| | - Y D Xu
- Department of Nuclear Medicine, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou Key Laboratory of Molecular Imaging, Changzhou 213003, China
| | - S Shao
- Department of Cardiology, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou 213003, China
| | - L S Zhai
- Department of Cardiology, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou 213003, China
| | - B Qian
- Department of Cardiology, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou 213003, China
| | - F F Zhang
- Department of Nuclear Medicine, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou Key Laboratory of Molecular Imaging, Changzhou 213003, China
| | - J F Wang
- Department of Nuclear Medicine, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou Key Laboratory of Molecular Imaging, Changzhou 213003, China
| | - X L Shao
- Department of Nuclear Medicine, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou Key Laboratory of Molecular Imaging, Changzhou 213003, China
| | - Y T Wang
- Department of Nuclear Medicine, Third Affiliated Hospital of Soochow University, First People's Hospital of Changzhou, Changzhou Key Laboratory of Molecular Imaging, Changzhou 213003, China
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11
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Qian B, Liu JY, Zhang FM, Kong FJ, Zhou W, Gu QC, Fang Y, Han ZD, Jiang XF, Zhu YL, Wang Y, Hu J, Mao ZQ. Coupled electronic and magnetic relaxation in Fe 1+yTe: direct evidence for the interaction between itinerant carriers and local moments. J Phys Condens Matter 2021; 34:025601. [PMID: 34619673 DOI: 10.1088/1361-648x/ac2db9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Iron chalcogenides are of particular interests among iron-based superconductors due to their distinct properties such as high-Tcon FeSe monolayer and competing magnetic correlations in Fe1+yTe. Here we report unusual transport properties observed near the critical composition of Fe1+yTe (y∼ 0.09) where competing magnetic correlations exist. The resistivity exhibits surprising temperature-dependent relaxation behavior belowTN, resulting in the increase of resistivity with time for 35 K <T<TN, but the decrease of resistivity with time for 10 K <T< 35 K. Such resistivity relaxation is intimately coupled to the magnetization relaxation and can be attributed to the glassy magnetic states induced by the competing magnetic orders. These findings demonstrate strong coupling between itinerant carriers and local ordered moments in Fe1+yTe.
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Affiliation(s)
- B Qian
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States of America
| | - J Y Liu
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States of America
| | - F M Zhang
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - F J Kong
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - W Zhou
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - Q C Gu
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - Y Fang
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - Z D Han
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - X F Jiang
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - Y L Zhu
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States of America
| | - Y Wang
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States of America
| | - J Hu
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States of America
- Department of Physics, University of Arkansas, Fayetteville, AR 72701, United States of America
| | - Z Q Mao
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States of America
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12
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Yang T, Zhang L, Yue Y, Qian B, Zeng Y, Zhang X. Optimal estimates for dissolved and suspended particulate material fluxes in the Yangtze River, China. Environ Sci Pollut Res Int 2021; 28:41337-41350. [PMID: 33783709 DOI: 10.1007/s11356-021-13581-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Accurate estimate of riverine material fluxes in dissolved and suspended particulate forms is a fundamental issue in monitoring water environments of large basins. Here we collected sub-daily observations of dissolved pollutants (NO3--N, NH4+-N, and DOC) and daily data of suspended sediment (SS) at eight gauging stations with controlling areas varied from 694,700 to 1,705,400 km2 located in the Yangtze River basin of China, and selected optimal estimates for both dissolved and suspended particulate material fluxes from five time-averaging methods and two regression methods. The results showed that time-averaging methods generally performed better in estimating dissolved pollutants, while regression methods were more applicable for suspended particulate materials. Compared with the selected optimal methods, the conventional method generally overestimated material fluxes by 0.09-49.75% in most cases. Longer sampling interval and smaller controlling area often led to larger uncertainty in estimation and critical values of sampling interval and controlling area were generally found to be 10-20 days and 1.3 million km2 in the Yangtze River basin.
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Affiliation(s)
- Tiantian Yang
- State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, 430072, China
| | | | - Yao Yue
- State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, 430072, China.
| | - Bao Qian
- Bureau of Hydrology, Changjiang Water Resources Commission, Wuhan, 430010, China
| | - Yuhong Zeng
- State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, 430072, China.
| | - Xiaofeng Zhang
- State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, 430072, China
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Shen L, Qian B, Xiao J, Zhu Y, Hussain S, Deng J, Peng G, Zuo Z, Zou L, Yu S, Ma X, Zhong Z, Ren Z, Wang Y, Liu H, Zhou Z, Cai D, Hu Y, Zong X, Cao S. Characterization of serum adiponectin and leptin in healthy perinatal dairy cows or cows with ketosis, and their effectson ketosis involved indices. Pol J Vet Sci 2021; 23:373-381. [PMID: 33006850 DOI: 10.24425/pjvs.2020.134681] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We investigated changes in concentrations of ADP (adiponectin), LEP (leptin), BHBA (beta-hydroxybutyric acid), NEFA (non-esterified fatty acid), Glucose (Glu) and INS (insulin) in serum of healthy perinatal dairy cows and cows with ketosis. Twenty-one healthy cows and seventeen cows with ketosis from a herd of a total 60 Holstein cows (near dry period i.e. 56 days antepartum) were selected. Blood was collected through the tail vein every 7 days, from 56 day antepartum to 56 day postpartum. Serum ADP, LEP, BHBA, NEFA, Glu, and INS concentrations were determined, and ketosis was diagnosed through serum BHBA (≥1.2 mmol/L). We showed the concentration of serum adipokines and energy balancing indices were stable during antepar- tum period. However, ADP concentration increased while LEP decreased, and there were a significant increase in cows with ketosis compared to that of in healthy cows. Serum BHBA and NEFA concentrations increased significantly at first, and then gradually decreased in both healthy cows and cows with ketosis. However, cows with ketosis showed higher concentrations of BHBA and NEFA which restored later. The serum concentration of Glu in both healthy dairy cows and cows with ketosis showed a decreasing trend. INS concentration in healthy cows was decreased while it was increased in cows with ketosis. The results reflect the extent of hypo- glycemia and lipid mobilization postpartum, suggest IR exists in cows with ketosis while serum ADP and LEP might play roles in the development of ketosis.
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Affiliation(s)
- L Shen
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - B Qian
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - J Xiao
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Y Zhu
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - S Hussain
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - J Deng
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - G Peng
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Z Zuo
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - L Zou
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - S Yu
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - X Ma
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Z Zhong
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Z Ren
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Y Wang
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - H Liu
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Z Zhou
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - D Cai
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - Y Hu
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
| | - X Zong
- Sichuan Agricultural University - Chengdu Campus, Academic Affairs Office, Chengdu, Sichuan, 611130, China
| | - S Cao
- Sichuan Agricultural University - Chengdu Campus, The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease Chengdu, Sichuan, 611130, China
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Qian B, Hao Z, Wang J, Zou X, Zhang G. CD4+, CD8+ T lymphocytes is related to OPN, THP expression in the kidney during the formation of kidney stones caused by nanobacteria. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00611-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
The type II protein arginine methyltransferase 5 (PRMT5) has been engaged in various human cancer development and progression types. Nevertheless, few studies uncover the biological functions of PRMT5 in the epithelial-mesenchymal transition (EMT) of human lung cancer cells, and the associated molecular mechanisms and signaling cascades are entirely unknown. Here, we show that PRMT5 is the ectopic expression in human lung cancer tissues and cell lines. Further study reveals that silencing PRMT5 by lentivirus-mediated shRNA or blocking of PRMT5 by specific inhibitor GSK591 attenuates the expression levels of EMT-related markers in vivo, using the xenograft mouse model. Moreover, our results show that down-regulation of PRMT5 impairs EGFR/Akt signaling cascades in human lung cancer cells, whereas re-expression of PRMT5 recovers those changes, suggesting that PRMT5 regulates EMT probably through EGFR/Akt signaling axis. Altogether, our results demonstrate that PRMT5 serves as a critical oncogenic regulator and promotes EMT in human lung cancer cells. More importantly, our findings also suggest that PRMT5 may be a potential therapeutic candidate for the treatment of human lung cancer.
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Affiliation(s)
- Jianhao Huang
- Department of Pulmonary and Critical Care Medicine, Shanghai East Clinical Medical College, 66324Nanjing Medical University, Nanjing, PR China.,Department of Pulmonary and Critical Care Medicine, 66324Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Yonghua Zheng
- Department of Pulmonary Medicine, Department of Respiratory Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai, PR China
| | - Xiao Zheng
- Department of Pulmonary Medicine, Department of Respiratory Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai, PR China
| | - Bao Qian
- Department of Pulmonary Medicine, Department of Respiratory Medicine, Shanghai Jinshan Tinglin Hospital, Shanghai, PR China
| | - Qi Yin
- Department of Pulmonary and Critical Care Medicine, 66324Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Jingjing Lu
- Department of Pulmonary and Critical Care Medicine, 66324Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Han Lei
- Department of Pulmonary and Critical Care Medicine, Shanghai East Clinical Medical College, 66324Nanjing Medical University, Nanjing, PR China
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Grabb KC, Ding S, Ning X, Liu SM, Qian B. Characterizing the impact of Three Gorges Dam on the Changjiang (Yangtze River): A story of nitrogen biogeochemical cycling through the lens of nitrogen stable isotopes. Environ Res 2021; 195:110759. [PMID: 33497682 DOI: 10.1016/j.envres.2021.110759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
The alterations of nitrogen sources and cycling within the Three Gorges Reservoir (TGR) and downstream the Changjiang were investigated to understand the impacts of the construction of the Three Gorges Dam (TGD) and anthropogenic inputs from the associated watershed. Water samples collected in October 2016 were analyzed for hydrologic parameters, nutrient concentrations, and stable isotopes of nitrate (NO3-), ammonium (NH4+) and particulate matter. Nitrate dual stable isotope values ranged from +5.8‰ to +7.1‰ and -1.9‰ to +0.4‰ for δ15N and δ18O, respectively. δ15N values in particulate nitrogen (PN) ranged from +0.5‰ to +8.5‰, with slightly lower values before the dam. δ15N-NH4+ values ranged between +10.5‰ and +19.4‰, likely reflecting the presence of ammonium assimilation throughout the TGR. The contribution of different nitrogen sources was calculated using a Bayesian mixing model. These sources, including soil organic nitrogen, ammonium fertilizer, and sewage effluent, contributed to elevated DIN concentrations within the TGR (83.2 μM-178.5 μM). The construction of the dam has also likely induced changes in the river environment such as ammonium assimilation in the surface waters and nitrification and/or remineralization within the deep waters of the TGR. Overall, during this investigation period, the TGR acted as a sink of PN (retaining 29%), yet negligibly influenced levels of TDN with ~96.5% of TDN exported to the downstream Changjiang and estuary. It is important to understand the long-term impacts of the TGD on the ecological environment of the Changjiang. This study highlights the influence that anthropogenic nitrogen sources have on the natural biogeochemical cycling within the TGR, showing the urgent need to reduce anthropogenic nitrogen pollution.
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Affiliation(s)
- Kalina C Grabb
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao, 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; MIT-WHOI Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge and Woods Hole, MA, USA
| | - Shuai Ding
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao, 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Xiaoyan Ning
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao, 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Su Mei Liu
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao, 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
| | - Bao Qian
- Bureau of Hydrology, Changjiang Water Resources Commission, Wuhan, 430010, China
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Jiang J, Pan H, Li M, Qian B, Lin X, Fan S. Predictive model for the 5-year survival status of osteosarcoma patients based on the SEER database and XGBoost algorithm. Sci Rep 2021; 11:5542. [PMID: 33692453 PMCID: PMC7970935 DOI: 10.1038/s41598-021-85223-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 02/26/2021] [Indexed: 11/09/2022] Open
Abstract
Osteosarcoma is the most common bone malignancy, with the highest incidence in children and adolescents. Survival rate prediction is important for improving prognosis and planning therapy. However, there is still no prediction model with a high accuracy rate for osteosarcoma. Therefore, we aimed to construct an artificial intelligence (AI) model for predicting the 5-year survival of osteosarcoma patients by using extreme gradient boosting (XGBoost), a large-scale machine-learning algorithm. We identified cases of osteosarcoma in the Surveillance, Epidemiology, and End Results (SEER) Research Database and excluded substandard samples. The study population was 835 and was divided into the training set (n = 668) and validation set (n = 167). Characteristics selected via survival analyses were used to construct the model. Receiver operating characteristic (ROC) curve and decision curve analyses were performed to evaluate the prediction. The accuracy of the prediction model was excellent both in the training set (area under the ROC curve [AUC] = 0.977) and the validation set (AUC = 0.911). Decision curve analyses proved the model could be used to support clinical decisions. XGBoost is an effective algorithm for predicting 5-year survival of osteosarcoma patients. Our prediction model had excellent accuracy and is therefore useful in clinical settings.
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Affiliation(s)
- Jiuzhou Jiang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Hao Pan
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Mobai Li
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Bao Qian
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Xianfeng Lin
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China.
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China.
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Senapati S, Qian B, Abel E, Rodriguez A, Jackson I, Eley J, Vujaskovic Z, Girdhani S, Khuntia D. Immunophenotyping Lymphocytes In Peripheral Blood Following FLASH Proton Beam Lung Irradiation. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1652] [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]
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19
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Qian B, Senapati S, Miyazaki M, Panchal J, Villanueva A, Sharma R. Synergistic Combination Of Radiation And Adenosine Pathway Inhibition In Lung Cancer Cells. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Kyuno D, Qian B, Groß W, Schäfer M, Ryschich E. Endothelium capture-based liver segment imaging using vascular endothelial growth factor receptor 2 in preclinical ex vivo models. BJS Open 2020; 4:332-341. [PMID: 31965760 PMCID: PMC7093791 DOI: 10.1002/bjs5.50253] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/08/2019] [Accepted: 11/20/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Near-infrared (NIR) imaging of liver segments provides substantial information for surgeons performing liver resection. It was hypothesized that ramucirumab, an endothelium-specific antibody approved by the Food and Drug Administration, could be used for liver segment imaging using the endothelium capture principle. METHODS The capture efficacy of anti-vascular endothelial growth factor receptor (VEGFR) 2 monoclonal antibodies (mAbs) and segment imaging were studied in a mouse model. Binding of ramucirumab in human and porcine tissues was studied using immunofluorescence staining. Isolated porcine liver perfusion was used to analyse the labelling and NIR imaging of selected liver segments. RESULTS VEGFR2 is well expressed on the endothelium of the smallest microvascular blood vessels in mouse, porcine and human liver tissues, as well as in human liver tumours. Perfusion of selected segments in the isolated liver model showed high capture of the anti-VEGFR2 (clone 522302) mAb and ramucirumab in mice and pigs respectively. NIR imaging of selected segments was achieved using isolated porcine liver perfusion with IRDye® 800CW-conjugated ramucirumab. CONCLUSION VEGFR2 is well expressed on the smallest microvascular blood vessels and can capture antibodies during single intravascular passages with high efficacy. The ex vivo imaging of a selected segment using endothelial capture of ramucirumab demonstrates the potential of this antibody for intraoperative navigation in liver surgery. Surgical relevance Imaging of liver segments provides substantial information for surgeons when performing liver resection. The antivascular endothelial growth factor receptor (VEGFR) 2 antibody ramucirumab conjugated with near-infrared dye could visualize selected liver segments using an endothelial capture-based approach in an isolated perfusion liver model. The ex vivo imaging of a selected segment using endothelial capture of ramucirumab demonstrates the potential of this anti-VEGFR2 antibody for intraoperative navigation in liver surgery.
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Affiliation(s)
- D. Kyuno
- Department of General, Visceral and Transplantation SurgeryUniversity Hospital HeidelbergHeidelbergGermany
- Department of Surgery, Surgical Oncology and ScienceSapporo Medical UniversitySapporoJapan
| | - B. Qian
- Department of General, Visceral and Transplantation SurgeryUniversity Hospital HeidelbergHeidelbergGermany
| | - W. Groß
- Department of General, Visceral and Transplantation SurgeryUniversity Hospital HeidelbergHeidelbergGermany
| | - M. Schäfer
- Department of General, Visceral and Transplantation SurgeryUniversity Hospital HeidelbergHeidelbergGermany
| | - E. Ryschich
- Department of General, Visceral and Transplantation SurgeryUniversity Hospital HeidelbergHeidelbergGermany
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Yang N, Li Y, Zhang W, Lin L, Qian B, Wang L, Niu L, Zhang H. Cascade dam impoundments restrain the trophic transfer efficiencies in benthic microbial food web. Water Res 2020; 170:115351. [PMID: 31810033 DOI: 10.1016/j.watres.2019.115351] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 05/25/2023]
Abstract
Determination of the effects of cascade dams on benthic microbial ecosystem is essential for dam regulation and ecological function protection. However, no comprehensive investigation has yet shown the ecosystem-level responses of microbiota to dam impoundments. This study conducted DNA metabarcoding and microbial food web analysis for multiple species and their interrelationships along a cascade dam-affected river. The composition, distribution and diversity of bacteria, protozoans and metazoans were obviously different between river and reservoirs, mainly controlled by hydrological (P < 0.01) and nutrient parameters (P < 0.05). Those three groups make up a co-occurrence network, with most edges direct from higher to lower trophic levels or vice versa and more than 50% keystones participate in the food web, indicating the significant role of predator-prey relationships. Based on the microbial food web analysis, the predator biomass, especially at higher trophic levels, decreased by about 10% from the riverine to the lacustrine system. The structural equation model illustrates that both bottom-up forces (environmental factors particularly velocity and nutrient concentrations) and top-down forces (higher trophic levels) critically control microbial food web patterns (P < 0.05). As a result of dam impoundments, the lower velocity in the reservoirs has direct negative effects on trophic transfer efficiencies that may be further magnified by nutrient accumulation, probably leading to an increase of eutrophication and posing a risk to water quality. The results suggest the potential ecological risk in the reservoirs and highlight the need to consider from the perspective of ecosystem during the operation of cascade dams.
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Affiliation(s)
- Nan Yang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Li Lin
- Department of Basin Water Environment, Changjiang River Scientific Research Institute, Wuhan, 430010, China; Hubei Provincial Key Laboratory of Basin Water Resources and Ecological Environment Sciences, Changjiang River Scientific Research Institute, Wuhan, 430010, China
| | - Bao Qian
- Hydrology Bureau of Changjiang Water Resources Commission, Wuhan, Hubei, 430010, China
| | - Longfei Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Huanjun Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
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Qian B, Wang DM, Gu XS, Zhou K, Wu J, Zhang CY, He XY. LncRNA H19 serves as a ceRNA and participates in non-small cell lung cancer development by regulating microRNA-107. Eur Rev Med Pharmacol Sci 2020; 22:5946-5953. [PMID: 30280776 DOI: 10.26355/eurrev_201809_15925] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate whether lncRNA H19 can regulate NF1 expression through competitive binding to microRNA-107, thereby participating in the occurrence and development of non-small cell lung cancer (NSCLC). PATIENTS AND METHODS Expression levels of H19 and NF1 in NSCLC tissues, paracancerous tissues and NSCLC cell lines were detected by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR). The binding condition of microRNA-107, H19 and NF1 was detected by dual-luciferase reporter gene assay. Corresponding lentiviruses of H19 were constructed. The regulatory effects of H19 on proliferative and migratory abilities of A549 cells were detected by cell counting kit-8 (CCK-8) and transwell assay, respectively. Rescue experiments were conducted to explore the regulatory interaction between H19 and microRNA-107 in A549 cells. RESULTS H19 and NF1 were highly expressed in NSCLC tissues and NSCLC cell lines (A549 and HCC823) than those of controls. Overexpressed H19 increased proliferative and migratory abilities of A549 cells. Dual-luciferase reporter gene assay demonstrated that H19 regulates NF1 expression through competitive binding to microRNA-107, thereafter participating in NSCLC development. CONCLUSIONS H19 is highly expressed in NSCLC, which promotes NSCLC development by regulating NF1 via competitive binding to microRNA-107.
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Affiliation(s)
- B Qian
- Department of Thoracic Surgery, Jiangdu People's Hospital of Yangzhou City, Yangzhou, China.
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Ge X, Ren C, Ding Y, Chen G, Lu X, Wang K, Ren F, Yang M, Wang Z, Li J, An X, Qian B, Leng Y. Micro/nano-structured TiO 2 surface with dual-functional antibacterial effects for biomedical applications. Bioact Mater 2019; 4:346-357. [PMID: 31720491 PMCID: PMC6838358 DOI: 10.1016/j.bioactmat.2019.10.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [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: 08/07/2019] [Revised: 10/10/2019] [Accepted: 10/17/2019] [Indexed: 01/10/2023] Open
Abstract
Implant-associated infections are generally difficult to cure owing to the bacterial antibiotic resistance which is attributed to the widespread usage of antibiotics. Given the global threat and increasing influence of antibiotic resistance, there is an urgent demand to explore novel antibacterial strategies other than using antibiotics. Recently, using a certain surface topography to provide a more persistent antibacterial solution attracts more and more attention. However, the clinical application of biomimetic nano-pillar array is not satisfactory, mainly because its antibacterial ability against Gram-positive strain is not good enough. Thus, the pillar array should be equipped with other antibacterial agents to fulfill the bacteriostatic and bactericidal requirements of clinical application. Here, we designed a novel model substrate which was a combination of periodic micro/nano-pillar array and TiO2 for basically understanding the topographical bacteriostatic effects of periodic micro/nano-pillar array and the photocatalytic bactericidal activity of TiO2. Such innovation may potentially exert the synergistic effects by integrating the persistent topographical antibacterial activity and the non-invasive X-ray induced photocatalytic antibacterial property of TiO2 to combat against antibiotic-resistant implant-associated infections. First, to separately verify the topographical antibacterial activity of TiO2 periodic micro/nano-pillar array, we systematically investigated its effects on bacterial adhesion, growth, proliferation, and viability in the dark without involving the photocatalysis of TiO2. The pillar array with sub-micron motif size can significantly inhibit the adhesion, growth, and proliferation of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Such antibacterial ability is mainly attributed to a spatial confinement size-effect and limited contact area availability generated by the special topography of pillar array. Moreover, the pillar array is not lethal to S. aureus and E. coli in 24 h. Then, the X-ray induced photocatalytic antibacterial property of TiO2 periodic micro/nano-pillar array in vitro and in vivo will be systematically studied in a future work. This study could shed light on the direction of surface topography design for future medical implants to combat against antibiotic-resistant implant-associated infections without using antibiotics.
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Affiliation(s)
- Xiang Ge
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin, 300354, China
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Chengzu Ren
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin, 300354, China
| | - Yonghui Ding
- Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Guang Chen
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin, 300354, China
| | - Xiong Lu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Fuzeng Ren
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Meng Yang
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zhuochen Wang
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, 300072, China
| | - Junlan Li
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin, 300354, China
| | - Xinxin An
- School of Humanities, Tianjin Agricultural University, Tianjin, 300384, China
| | - Bao Qian
- Department of Machine Elements and Engineering Design, University of Kassel, Kassel, 34125, Germany
| | - Yang Leng
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Li X, Zhang HM, Qian B, Gao YP, Wu M, Pan BL, Wang QH, Yang KD. [Association of polycyclic aromatic hydrocarbon exposure and CYP1A1 gene and enzyme activity of peripheral blood monocyte cells in coke oven workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:104-109. [PMID: 30929349 DOI: 10.3760/cma.j.issn.1001-9391.2019.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the association between polycyclic aromatic hydrocarbons (PAHs) exposure and cytochrome P450 CYP1A1 expression at gene and enzyme activity levels in the peripheral blood monocyte cells in coke oven workers, and to provide a certain basis for the biological monitoring of health damage in coke oven workers. Methods: We surveyed 118 coke oven workers and 63 controls (energy power workers in the same company) using self-designed questionnaire, determined their post-shift urinary 1-hydroxypyrene (1-OH-Py) concentration using high performance liquid chromatography (HPLC)-fluorescence detector method. We also isolated the peripheral blood mononuclear cell (PBMC) from fasting venous blood, and detected DNA damage using comet assay, CYP1A1 mRNA level using the real-time fluorescent quantitative PCR (FQ-PCR), and EROD activity using spectrophotometry. Statistical analyses including one-way analysis of variance and multiple linear regressions were used to analyze the association of urinary 1-OH-Py and CYP1A1 mRNA level and EROD activity. Results: Compared to the control group, the urinary 1-OH-Py concentration and PBMC DNA tail moment were significantly increased in coke oven workers (P<0.05), and CYP1A1 gene level and EROD activity in PBMC were significantly decreased (P<0.05). Multiple linear regression showed that a ten-fold increase of urinary 1-OH-Pycon centration was associated with a decrease of 0.77 (95%CI: -1.33--0.21) in CYP1A1 gene level, and a decline of 0.15 (95%CI: -0.76--0.16) in EROD activity of PBMC in coke oven workers (P<0.05). Conclusion: Occupational PAHs exposure induced DNA damage, which was associated with the decreased level in CYP1A1 gene cavel and EROD activity in PBMC of coke oven workers.
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Affiliation(s)
- X Li
- General hospital of Taiyuan Iron & Steel Company; Taiyuan 030003, China
| | - H M Zhang
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - B Qian
- General hospital of Taiyuan Iron & Steel Company; Taiyuan 030003, China
| | - Y P Gao
- General hospital of Taiyuan Iron & Steel Company; Taiyuan 030003, China
| | - M Wu
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - B L Pan
- General hospital of Taiyuan Iron & Steel Company; Taiyuan 030003, China
| | - Q H Wang
- General hospital of Taiyuan Iron & Steel Company; Taiyuan 030003, China
| | - K D Yang
- General hospital of Taiyuan Iron & Steel Company; Taiyuan 030003, China
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Li Z, Qian B, Hu R, Chang L, Yang J. An elitist nondominated sorting hybrid algorithm for multi-objective flexible job-shop scheduling problem with sequence-dependent setups. Knowl Based Syst 2019. [DOI: 10.1016/j.knosys.2019.02.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zhang W, Gu J, Li Y, Lin L, Wang P, Wang C, Qian B, Wang H, Niu L, Wang L, Zhang H, Gao Y, Zhu M, Fang S. New Insights into Sediment Transport in Interconnected River-Lake Systems Through Tracing Microorganisms. Environ Sci Technol 2019; 53:4099-4108. [PMID: 30864784 DOI: 10.1021/acs.est.8b07334] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A growing awareness of the wider environmental significance of diffuse sediment pollution in interconnected river-lake systems has generated the need for reliable provenance information. Owing to their insufficient ability to distinguish between multiple sources, common sediment source apportionment methods would rarely be a practical solution. On the basis of the inseparable relationships between sediment and adsorbed microorganisms, community-based microbial source tracking may be a novel method of identifying dominant sediment sources in the era of high-throughput sequencing. Dongting Lake was selected as a study area as it receives considerable sediment import from its inflowing rivers during the flood season. This study was conducted to characterize the bacterial community composition of sediment samples from the inflow-river estuaries and quantify their sediment microbe contributions to the central lake. Metagenomic analysis revealed that the community compositions of source sediment samples were significantly different, allowing specific sources to be identified with the machine learning classification program SourceTracker. A modified analysis using SourceTracker found that the major contributors to three major lake districts were the Songzi, Zishui, and Xinqiang Rivers. The impacts of hydrodynamic conditions on source apportionment were further verified and suggested the practicability of this method to offer a systematic and comprehensive understanding of sediment sources, pathways, and transport dynamics. Finally, a novel framework for sediment source-tracking was established to develop effective sediment management and control strategies in river-lake systems.
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Affiliation(s)
- Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Jinfei Gu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Li Lin
- Basin Water Environmental Research Department , Changjiang River Scientific Research Institute , Wuhan 430010 , P.R. China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Bao Qian
- Hydrology Bureau of Changjiang Water Resources Commission , Wuhan 430010 , P.R. China
| | - Haolan Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Longfei Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Huanjun Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Yu Gao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Mengjie Zhu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
| | - Siqi Fang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment , Hohai University , Nanjing 210098 , P.R. China
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Xing YF, Pan X, Qian B, Shi MH. [Expression of PD-1 and PD-L1 in the peripheral blood of advanced non-small-cell lung cancer patients and its implications]. Zhonghua Yi Xue Za Zhi 2019; 99:111-114. [PMID: 30669748 DOI: 10.3760/cma.j.issn.0376-2491.2019.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of programmed death 1(PD-1) and programmed death ligand 1 (PD-L1) on T lymphocyte and monocyte from peripheral blood of advanced non-small-cell lung cancer (NSCLC) patients and its potential role in immune escape of NSCLC. Methods: Forty-eight patients with advanced NSCLC (Lung Cancer Group) were included from the Department of Respiratory Diseases in The Second Affiliated Hospital of Soochow University from June 2014 to June 2015. Thirty-six healthy volunteers who received health examination at the same time, matching in sex, age were also enrolled as controls. The expression of PD-1 on peripheral blood CD4(+)T cells and CD8(+)T cells and PD-L1 on monocytes were detected by flow cytometry. Patients who received chemotherapy alone for 2-4 cycles and received sequential sampling were assessed with Response Evaluation Criteria in Solid Tumors 1.1 (RECIST 1.1). Seven cases of patients with significant response to treatment were selected as partial response (PR) group and ten patients with poor response to treatment were treated as progression disease(PD) group. The differences in the expression of PD-1 on the surface of CD4(+)T cells, CD8(+)T cells, and PD-L1 on the surface of monocyte before and after treatment were analyzed. Results: Compared with healthy control group, PD-1 expression level on both CD4(+) T and CD8(+) T cells from peripheral blood in lung cancer group were significantly increased [(25.9±7.4)% vs (20.6±6.2)%, (19.9±9.8)% vs (14.0±5.6)%, both P<0.05]. A higher level of PD-L1 expression on monocyte in lung cancer group was also found compared with the control group [(33.1±15.1)% vs (13.6±5.3)%, P<0.001]. The expression level of PD-1 on CD4(+)T and CD8(+)T cells and PD-L1 on monocytes in lung cancer group with good response to treatment was relatively lower than the baseline level of before treatment [(22.8±8.5)% vs (25.9±7.8)%, (17.1±8.4)% vs (20.4±8.6)%, (18.1±6.9)% vs (31.3±13.2)%, all P<0.05], but in lung cancer group with poor response to treatment, it was higher than the baseline level of before treatment [(33.5±6.5)% vs (23.9±4.2)%, (25.2±9.1)% vs (19.1±8.8)%, (43.1±18.3)% vs (29.7±10.6)%, all P<0.05]. Conclusion: Abnormal expression of PD-1 and PD-L1 exists in T cells and monocytes respectively, prompting PD-1/PD-L1 pathway may inhibit T cell proliferation during the interaction of T cell and monocyte, which may lead to non-small cell lung cancer immune escape.
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Affiliation(s)
- Y F Xing
- Department of Respiratory Diseases, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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He W, Yang JY, Qian B, Drury CF, Hoogenboom G, He P, Lapen D, Zhou W. Climate change impacts on crop yield, soil water balance and nitrate leaching in the semiarid and humid regions of Canada. PLoS One 2018; 13:e0207370. [PMID: 30444929 PMCID: PMC6239327 DOI: 10.1371/journal.pone.0207370] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 10/30/2018] [Indexed: 11/19/2022] Open
Abstract
The impact of climate change on agricultural systems is a major concern as it can have a significant effect on the world food supply. The objective of this study was to evaluate climate change impacts on crop production and nitrate leaching in two distinct climatic zones in Canada. Spring wheat (Triticum aestivum L.) was selected for the semiarid regions of Western Canada (Swift Current, SK) and maize (Zea mays L.) was chosen for the more humid regions of central Canada (Woodslee, ON). Climate scenarios were based upon simulations from a Canadian Regional Climate Model (CanRCM4) under two Representative Concentration Pathways (RCP4.5 and RCP8.5) and crop simulations were conducted using the Decision Support System for Agrotechnology Transfer (DSSAT) model. Compared to the baseline climate scenario, wheat yields increased by 8, 8, 11, 15%, whereas maize yields decreased by 15, 25, 22, 41% under RCP4.5 2050s (2041-2070), RCP4.5 2080s (2071-2100), RCP8.5 2050s and RCP8.5 2080s scenarios, respectively. Annual nitrate leaching increased by 19, 57, 73, 129% at Swift Current and by 84, 117, 208, 317% at Woodslee under the four scenarios, respectively. Adaptation measures suggested that fertilizer N rate for spring wheat should be increased to 80-100 kg N ha-1 to obtain optimal yields although this will result in an additional risk of 5-8 kg N ha-1 nitrate leaching at Swift Current. The fertilizer N rate of 150 kg N ha-1 was found to be suitable for high maize yields at Woodslee. New wheat and maize cultivars with long growing seasons would enable crop growth to match the phenological stage and hence maintain high crop yields to adapt to increased temperatures in the future.
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Affiliation(s)
- Wentian He
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
- Harrow Research and Development Centre, Agriculture and Agri-Food Canada, Harrow, ON, Canada
| | - J. Y. Yang
- Harrow Research and Development Centre, Agriculture and Agri-Food Canada, Harrow, ON, Canada
| | - B. Qian
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Canada
| | - C. F. Drury
- Harrow Research and Development Centre, Agriculture and Agri-Food Canada, Harrow, ON, Canada
| | - G. Hoogenboom
- Institute for Sustainable Food Systems, University of Florida, Gainesville, Florida, United States of America
| | - P. He
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - D. Lapen
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Canada
| | - W. Zhou
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
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Li Y, Yang N, Qian B, Yang Z, Liu D, Niu L, Zhang W. Development of a bacteria-based index of biotic integrity (Ba-IBI) for assessing ecological health of the Three Gorges Reservoir in different operation periods. Sci Total Environ 2018; 640-641:255-263. [PMID: 29859441 DOI: 10.1016/j.scitotenv.2018.05.291] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/23/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
It is urgently needed to quantitatively assess ecological health of the Three Gorges Reservoir (TGR) when considering its special environmental conditions and temporal variations caused by reservoir operation. This study developed a bacteria-based index of biotic integrity (Ba-IBI) based on sediment samples collected along the TGR in low water level period, impoundment period and sluicing period, respectively. Reference conditions were defined using 8 ecological variables describing the hydromorphology and anthropogenic disturbances around the sites. Five core metrics, including % Acidobacteria, % Gemmatimonadetes, % Geobacter, Methanotroph and Phototroph, were selected after the screening processes. The developed index could clearly discriminate reference and impaired conditions and exhibited significant relationship with environmental parameters according to the redundancy (p < 0.01) and multivariable linear regression analysis (R2 = 0.76). By implementing Ba-IBI in the TGR, the ecological health of the sampling sites was defined as "Excellent" (25%), "Good" (50%) and "Fair" (25%) separately. The spatial variation of biotic integrity was closely associated with environmental and ecological changes, especially the increase of nutrient concentrations. This study revealed a significant tendency that the ecological health in the low water level and sluicing periods was better than that in the impoundment period, which could be attributed to the hydrodynamic changes due to water level fluctuation. This study provides a comprehensive understanding of ecological health of the TGR in different operation periods and the index offers a guideline for the reservoir regulation in the similar areas.
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Affiliation(s)
- Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Nan Yang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Bao Qian
- Hydrology Bureau of Changjiang Water Resources Commission, Wuhan, Hubei 430010, PR China
| | - Zhengjian Yang
- Hubei Key Laboratory of Ecological Restoration of River-lakes and Algal Utilization, Hubei University of Technology, Wuhan 430068, Hubei Province, PR China
| | - Defu Liu
- Hubei Key Laboratory of Ecological Restoration of River-lakes and Algal Utilization, Hubei University of Technology, Wuhan 430068, Hubei Province, PR China
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
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Bao H, Liu Z, Bao M, Zhu Z, Yan P, Liu S, Feng Z, Qian B, Qiu Y. Predicted final spinal height in patients with adolescent idiopathic scoliosis can be achieved by surgery regardless of maturity status. Bone Joint J 2018; 100-B:1372-1376. [PMID: 30295519 DOI: 10.1302/0301-620x.100b10.bjj-2017-1540.r2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The aim of this study was to investigate the impact of maturity status at the time of surgery on final spinal height in patients with an adolescent idiopathic scoliosis (AIS) using the spine-pelvic index (SPI). The SPI is a self-control ratio that is independent of age and maturity status. PATIENTS AND METHODS The study recruited 152 female patients with a Lenke 1 AIS. The additional inclusion criteria were a thoracic Cobb angle between 45° and 70°, Risser 0 to 1 or 3 to 4 at the time of surgery, and follow-up until 18 years of age or Risser stage 5. The patients were stratified into four groups: Risser 0 to 1 and selective fusion surgery (Group 1), Risser 0 to 1 and non-selective fusion (Group 2), Risser 3 to 4 and selective fusion surgery (Group 3), and Risser 3 to 4 and non-selective fusion (Group 4). The height of spine at follow-up (HOSf) and height of pelvis at follow-up (HOPf) were measured and the predicted HOS (pHOS) was calculated as 2.22 (SPI) × HOPf. One-way analysis of variance (ANOVA) was performed for statistical analysis. RESULTS Of the 152 patients, there were 32 patients in Group 1, 27 patients in Group 2, 48 patients in Group 3, and 45 patients in Group 4. Significantly greater HOSf was observed in Group 3 compared with Group 1 (p = 0.03) and in Group 4 compared with Group 2 (p = 0.02), with similar HOPf (p = 0.75 and p = 0.83, respectively), suggesting that patients who undergo surgery at Risser grade of 0 to 1 have a shorter spinal height at follow-up than those who have surgery at Risser 4 to 5. HOSf was similar to pHOS in both Group 1 and Group 2 (p = 0.62 and p = 0.45, respectively), indicating that undergoing surgery at Risser 0 to 1 does not necessarily affect final spinal height. CONCLUSION This study shows that fusion surgery at Risser 0 may result in growth restriction unlike fusion surgery at Risser 3 to 4. Despite such growth restriction, AIS patients could reach their predicted or 'normal' spinal height after surgery regardless of baseline maturity status due to the longer baseline spinal length in AIS patients and the remaining growth potential at the non-fusion levels. Cite this article: Bone Joint J 2018;100-B:1372-6.
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Affiliation(s)
- H Bao
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - Z Liu
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - M Bao
- Geisel School of Medicine, Dartmouth College, New Hampshire, USA
| | - Z Zhu
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - P Yan
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - S Liu
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - Z Feng
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - B Qian
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
| | - Y Qiu
- Chief of Orthopedic Department Spine Surgery, Nanjing Drum Town Hospital, Nanjing University Medical School, Nanjing, China
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Huang F, Wu Y, Qian B, Guo L, Zhao D, Ren L, Xia Z. An environmental flow assessment of a river's blocking effect on a lake in a river-lake system: application in the Yangtze-Poyang system. Environ Monit Assess 2018; 190:453. [PMID: 29982885 DOI: 10.1007/s10661-018-6825-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 06/27/2018] [Indexed: 06/08/2023]
Abstract
Hydrologic regimes are essential to riverine, lacustrine, and wetland ecosystems, and every component of a hydrologic regime has a specific ecological environmental function. In an outflow lake-river system, water levels are reduced by a reservoir constructed at the river, which interferes with the river-lake interrelationships by impairing the river's blocking effect. This increases the lake-river hydraulic gradient and accelerates the lake's drainage to the river, resulting in shrinkage of the lake and damaging environmental issues. To respond to these issues, we propose an environmental flow assessment that considers the river's blocking effect on the lake. This novel methodology consists of four steps: data preparation, assessment of the lake's environmental water level, assessment of the river's environmental water level, and environmental flow assessment. We estimated the river's environmental water level through a hydraulic correlation between the lake and the river, and found that the river's blocking effect could be sustained. The Yangtze-Poyang system was selected as a case study to illustrate the methodology's procedures and applicability. The impoundment of the Three Gorges Reservoir, during the fall retreating season, decreased the Yangtze's water level and weakened the Yangtze's blocking effect on Poyang Lake. Poyang Lake's environmental water level, which ranges from 11.71 to 15.81 m in the month of October, was used to estimate the Yangtze's environmental water level as falling in a range of 11.95 to 16.17 m, which corresponds to an environmental flow range of 16,822 to 32,371 m3/s. This study offers a solution for reservoir-induced accelerated lake drainage, which may be helpful in mitigating the negative impacts of reservoirs and sustaining natural rive-lake interactions.
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Affiliation(s)
- Feng Huang
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China.
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China.
| | - Yao Wu
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
- Poyang Lake Hydro Project Construction Office of Jiangxi Province, Nanchang, 330046, China
| | - Bao Qian
- Bureau of Hydrology, Changjiang River Water Resources Commission, Wuhan, 430012, China
| | - Lidan Guo
- International River Research Centre, Hohai University, Nanjing, 210098, China
| | - Dayong Zhao
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Li Ren
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Ziqiang Xia
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
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Winkler N, Strübing F, Kyuno D, Qian B, Wang Z, Groß W, Mier W, Ryschich E. The role of endothelial filtration for locoregional targeting of hepatic tumours with endothelium-specific antibodies and nanoparticles. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yu H, Katsaros D, Biglia N, Shen Y, Loo L, Yu X, Lin H, Fu Y, Chu W, Fei P, Ni Y, Jia W, Deng X, Qian B, Wang Z. Abstract P5-07-03: Withdrawn. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p5-07-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
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Affiliation(s)
- H Yu
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - D Katsaros
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - N Biglia
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - Y Shen
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - L Loo
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - X Yu
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - H Lin
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - Y Fu
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - W Chu
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - P Fei
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - Y Ni
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - W Jia
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - X Deng
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - B Qian
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
| | - Z Wang
- University of Hawaii Cancer Center; S. Anna Hospital, n 5 and After Azienda Ospedaliero-Universitaria; University of Torino School of Medicine; Shanghai Jiao Tong University
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Li B, Xu CQ, Zhou W, Jiao WH, Sankar R, Zhang FM, Hou HH, Jiang XF, Qian B, Chen B, Bangura AF, Xu X. Evidence of s-wave superconductivity in the noncentrosymmetric La 7Ir 3. Sci Rep 2018; 8:651. [PMID: 29330440 PMCID: PMC5766628 DOI: 10.1038/s41598-017-19042-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 12/20/2017] [Indexed: 11/23/2022] Open
Abstract
Superconductivity in noncentrosymmetric compounds has attracted sustained interest in the last decades. Here we present a detailed study on the transport, thermodynamic properties and the band structure of the noncentrosymmetric superconductor La 7 Ir 3 (T c ~ 2.3 K) that was recently proposed to break the time-reversal symmetry. It is found that La7Ir3 displays a moderately large electronic heat capacity (Sommerfeld coefficient γ n ~ 53.1 mJ/mol K2) and a significantly enhanced Kadowaki-Woods ratio (KWR ~32 μΩ cm mol2 K2 J-2) that is greater than the typical value (~10 μΩ cm mol2 K2 J-2) for strongly correlated electron systems. The upper critical field Hc2 was seen to be nicely described by the single-band Werthamer-Helfand-Hohenberg model down to very low temperatures. The hydrostatic pressure effects on the superconductivity were also investigated. The heat capacity below T c reveals a dominant s-wave gap with the magnitude close to the BCS value. The first-principles calculations yield the electron-phonon coupling constant λ = 0.81 and the logarithmically averaged frequency ω ln = 78.5 K, resulting in a theoretical T c = 2.5 K, close to the experimental value. Our calculations suggest that the enhanced electronic heat capacity is more likely due to electron-phonon coupling, rather than the electron-electron correlation effects. Collectively, these results place severe constraints on any theory of exotic superconductivity in this system.
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Affiliation(s)
- B Li
- College of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - C Q Xu
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China
- Department of Physics, Hangzhou Normal University, Hangzhou, 310036, China
| | - W Zhou
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China
| | - W H Jiao
- Department of Physics, Zhejiang University of Science and Technology, Hangzhou, 310023, China
| | - R Sankar
- Institute of Physics, Academia Sinica, Nankang, Taipei R.O.C., 11529, Taiwan
- Center for Condensed Matter Sciences, National Taiwan University, Taipei, 10617, Taiwan
| | - F M Zhang
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China
| | - H H Hou
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China
| | - X F Jiang
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China
| | - B Qian
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China
| | - B Chen
- Department of Physics, University of Shanghai for Science & Tehcnology, Shanghai, China
| | - A F Bangura
- Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, D-70569, Stuttgart, Germany
| | - Xiaofeng Xu
- Advanced Functional Materials Lab and Department of Physics, Changshu Institute of Technology, Changshu, 215500, China.
- Department of Physics, Hangzhou Normal University, Hangzhou, 310036, China.
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Li J, Li Y, Qian B, Niu L, Zhang W, Cai W, Wu H, Wang P, Wang C. Development and validation of a bacteria-based index of biotic integrity for assessing the ecological status of urban rivers: A case study of Qinhuai River basin in Nanjing, China. J Environ Manage 2017; 196:161-167. [PMID: 28284134 DOI: 10.1016/j.jenvman.2017.03.003] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 02/12/2017] [Accepted: 03/01/2017] [Indexed: 05/20/2023]
Abstract
With the increasing human disturbance to urban rivers, the extinction and biodiversity losses of some macroorganism species decreased the accuracy of bioassessment. In this study, a novel index of biotic integrity based on bacteria (Ba-IBI) was first developed for Qinhuai River in Nanjing city, China. Thirty-two biofilm samples were collected along the river bank and the bacterial communities were identified by high-throughput sequencing. By the range, responsive, and redundancy tests, four core metrics were selected from the dataset of 78 candidate metrics, including Pielou's evenness index, proportion of Paenibacillus, proportion of OTUs tolerant to organic pollution and proportion of Nitrosomonas. The results showed that the Ba-IBI was able to effectively discriminate different impaired site groups, and had a good correlation with the index of water quality (r = 0.79, p < 0.01) and the qualitative habitat evaluation index (r = 0.51, p < 0.01). Moreover, the Ba-IBI was negatively correlated with the number of population within a 1 km buffer (r = -0.71, p < 0.01). Application of the index showed that most of the sites were in the poor or bad class in the river. Our study revealed that the Ba-IBI is an effective and reliable approach for assessing the ecological status of Qinhuai River basin, which can complement the existing ecological assessment approaches for urban rivers. Meanwhile, repeted surveys and field validations are still needed to further improve the applicability of the index in future studies.
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Affiliation(s)
- Jie Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yi Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China.
| | - Bao Qian
- Hydrology Bureau of Changjiang Water Resources Commission, Wuhan, Hubei, 430010, PR China
| | - Lihua Niu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Wenlong Zhang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Wei Cai
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Hainan Wu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Peifang Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Chao Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
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36
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Qian B, Zhao H, Xu B, Lan M. A thermal protective urethral heater applied to modulate the prostate cryoablation area. Cryo Letters 2017; 38:305-314. [PMID: 29734432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Urethral warmer and cryoheater are invented and applied in cryoablation to overcome urethral cryoinjury, but these devices cannot be fixed and precisely control the released heat which excessively reduces the effective ablation area. Current warmers enlarge the operation difficulty and decrease the precision in temperature control. OBJECTIVE A reformed catheter termed urethral heater aims to protect the urethra and simultaneously control the released heat so as to meet the aid of doctors' convenient operation in effective therapy, device fixation and precise heat controllability. MATERIALS AND METHODS In this paper, the temperature controller combined with temperature monitor was used to control the heating behavior of the urethral heater with the initial active temperature. The controllability and thermal protection of the urethral heater was simulated and tested, which compared with that of urethral warmer. RESULTS During the trials in vitro, the lowest temperature at the urethra surface is -3.7 degree C when one cryoprobe was introduced in the cryoablation for 15 min and -15.3 degree C with two cryoprobes. Above all, the effective cryoablation area increased with the decline of initial active temperatures. CONCLUSION The urethral heater is able to prevent the urethra from irreversible damage and modulate the ablation area. The delay of heat is a new way to decline the recurrence rate and facilitate the desire of aconuresis during the cryoablation.
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Affiliation(s)
- B Qian
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and MolecularEngineering, East China University of Science and Technology, Shanghai, China
| | - H Zhao
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and MolecularEngineering, East China University of Science and Technology, Shanghai, China
| | - B Xu
- AccuTarget MediPharma Co., Shanghai, China
| | - M Lan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and MolecularEngineering, East China University of Science and Technology, Shanghai, China.
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Qian B, Zhang D, Wang J, Huang F, Wu Y. Impacts of reservoirs on the streamflow and sediment load of the Hanjiang River, China. Environ Monit Assess 2016; 188:646. [PMID: 27796831 DOI: 10.1007/s10661-016-5652-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/14/2016] [Indexed: 06/06/2023]
Abstract
The Hanjiang River is an important tributary of the Yangtze River in China. Long-term observed streamflow and sediment load data that spanned 1951-2014 was collected from the Huangzhuang hydrometric station, which is located at the middle reaches. The data was analyzed to reveal the impacts of reservoirs on streamflow and sediment load of the Hanjiang River. The coefficient of variation (C v) and concentration degree (C d) were applied to describe the intra-annual distribution characteristics. Abrupt changes in the time series of the streamflow and sediment load were detected by the heuristic segmentation algorithm. The annual streamflow significantly decreased from 1561 to 1263 m3/s after 1991, which was mainly caused by climate change. Two significant change points in the annual sediment load series occurred at 1966 and 1985, and the average values of the sub-series were 3198, 952, and 251 kg/s, respectively. Significant change points in the C v and C d series of the streamflow and sediment load occurred around 1967. The C v and C d series decreased dramatically after the change points. Abrupt changes in the time series of the streamflow and sediment load mainly occurred around 1967 when the Danjiangkou reservoir began to impound water, indicating that the Danjiangkou reservoir was an important factor that caused hydrological changes. The reservoir trapped sediment, reduced sediment concentration, mitigated the monthly streamflow and sediment load fluctuations, and reduced the intra-annual variation and concentration. Assessed by the range of variability approaches, the overall alteration degrees of the streamflow and sediment regimes were 36 and 60 %, respectively, which qualified as a moderate degree. The reservoir exerted greater influence on the sediment regime than on the streamflow regime.
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Affiliation(s)
- Bao Qian
- Bureau of Hydrology, Changjiang River Water Resources Commission, Wuhan, 430012, China
| | - Debing Zhang
- Bureau of Hydrology, Changjiang River Water Resources Commission, Wuhan, 430012, China
| | - Jincheng Wang
- Bureau of Hydrology, Changjiang River Water Resources Commission, Wuhan, 430012, China
| | - Feng Huang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China.
| | - Yao Wu
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
- Poyang Lake Hydro Project Construction Office of Jiangxi Province, Nanchang, 330046, China
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Chen Q, Liang W, Qian F, Qian B, Cao J, Zhang D, Xu Y, Tang L. Rice-produced MSP142ofPlasmodium falciparumelicits antibodies that inhibit parasite growth in vitro. Parasite Immunol 2016; 38:635-41. [DOI: 10.1111/pim.12352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 08/01/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Q. Chen
- National Institute of Parasitic Diseases; Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Tropical Diseases; Key Laboratory of Parasite and Vector Biology; Ministry of Health; Shanghai China
| | - W. Liang
- State Key Laboratory of Hybrid Rice; School of Life Sciences and Biotechnology; Shanghai Jiao Tong University; Shanghai China
| | - F. Qian
- Department of Rheumatology and Immunology; Changzheng Hospital; Second Military Medical University; Shanghai China
| | - B. Qian
- State Key Laboratory of Hybrid Rice; School of Life Sciences and Biotechnology; Shanghai Jiao Tong University; Shanghai China
| | - J. Cao
- National Institute of Parasitic Diseases; Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Tropical Diseases; Key Laboratory of Parasite and Vector Biology; Ministry of Health; Shanghai China
| | - D. Zhang
- State Key Laboratory of Hybrid Rice; School of Life Sciences and Biotechnology; Shanghai Jiao Tong University; Shanghai China
| | - Y. Xu
- National Institute of Parasitic Diseases; Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Tropical Diseases; Key Laboratory of Parasite and Vector Biology; Ministry of Health; Shanghai China
| | - L. Tang
- National Institute of Parasitic Diseases; Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Tropical Diseases; Key Laboratory of Parasite and Vector Biology; Ministry of Health; Shanghai China
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Dong SY, Chen JY, Han ZD, Fang Y, Zhang L, Zhang CL, Qian B, Jiang XF. Intermartensitic Transformation and Enhanced Exchange Bias in Pd (Pt) -doped Ni-Mn-Sn alloys. Sci Rep 2016; 6:25911. [PMID: 27170057 PMCID: PMC4864378 DOI: 10.1038/srep25911] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 04/25/2016] [Indexed: 11/16/2022] Open
Abstract
In this work, we studied the phase transitions and exchange bias of Ni50−xMn36Sn14Tx (T = Pd, Pt; x = 0, 1, 2, 3) alloys. An intermartensitic transition (IMT), not observed in Ni50Mn36Sn14 alloy, was induced by the proper application of negative chemical pressure by Pd(Pt) doping in Ni50−xMn36Sn14Tx (T = Pd, Pt) alloys. IMT weakened and was suppressed with the increase of applied field; it also disappeared with further increase of Pd(Pt) content (x = 3 for Pd and x = 2 for Pt). Another striking result is that exchange bias effect, ascribed to the percolating ferromagnetic domains coexisting with spin glass phase, is notably enhanced by nonmagnetic Pd(Pt) addition. The increase of unidirectional anisotropy by the addition of Pd(Pt) impurities with strong spin-orbit coupling was explained by Dzyaloshinsky-Moriya interactions in spin glass phase.
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Affiliation(s)
- S Y Dong
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.,School of Materials Science and Engineering, China University of Mining &Technology, Xuzhou 221116, People's Republic of China
| | - J Y Chen
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.,School of Materials Science and Engineering, China University of Mining &Technology, Xuzhou 221116, People's Republic of China
| | - Z D Han
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.,School of Materials Science and Engineering, China University of Mining &Technology, Xuzhou 221116, People's Republic of China
| | - Y Fang
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - L Zhang
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - C L Zhang
- School of Science, Jiangnan University, Wuxi 214122, People's Republic of China
| | - B Qian
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
| | - X F Jiang
- Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China
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Abstract
Magnetic, dielectric and magnetoelectric properties of the polycrystalline Co4NbTaO9 have been investigated in this paper.
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41
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Abstract
Here we prepare polycrystalline Mn1−xNixWO4 ceramics with x = 0, 0.02, 0.04, 0.06 for investigating their magnetic, ferroelectric, and multiferroic properties.
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Affiliation(s)
- J. Yang
- Jiangsu Laboratory of Advanced Functional Materials
- Department of Physics
- Changshu Institute of Technology
- Changshu 215500
- China
| | - J. Chen
- Jiangsu Laboratory of Advanced Functional Materials
- Department of Physics
- Changshu Institute of Technology
- Changshu 215500
- China
| | - Y. Fang
- Jiangsu Laboratory of Advanced Functional Materials
- Department of Physics
- Changshu Institute of Technology
- Changshu 215500
- China
| | - Z. D. Han
- Jiangsu Laboratory of Advanced Functional Materials
- Department of Physics
- Changshu Institute of Technology
- Changshu 215500
- China
| | - S. M. Yan
- National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province
- Nanjing University
- Nanjing 210093
- P. R. China
| | - B. Qian
- Jiangsu Laboratory of Advanced Functional Materials
- Department of Physics
- Changshu Institute of Technology
- Changshu 215500
- China
| | - X. F. Jiang
- Jiangsu Laboratory of Advanced Functional Materials
- Department of Physics
- Changshu Institute of Technology
- Changshu 215500
- China
| | - D. H. Wang
- National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Y. W. Du
- National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province
- Nanjing University
- Nanjing 210093
- P. R. China
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Qian B, Saeidi K, Kvetková L, Lofaj F, Xiao C, Shen Z. Defects-tolerant Co-Cr-Mo dental alloys prepared by selective laser melting. Dent Mater 2015; 31:1435-44. [PMID: 26452598 DOI: 10.1016/j.dental.2015.09.003] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 06/22/2015] [Accepted: 09/08/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVES CrCoMo alloy specimens were successfully fabricated using selective laser melting (SLM). The aim of this study was to carefully investigate microstructure of the SLM specimens in order to understand the influence of their structural features inter-grown on different length scales ranging from nano- to macro-levels on their mechanical properties. METHODS Two different sets of processing parameters developed for building the inner part (core) and the surface (skin) of dental prostheses were tested. Microstructures were characterized by SEM, EBSD and XRD analysis. The elemental distribution was assessed by EDS line profile analysis under TEM. The mechanical properties of the specimens were measured. RESULTS The microstructures of both specimens were characterized showing formation of grains comprised of columnar sub-grains with Mo-enrichment at the sub-grain boundaries. Clusters of columnar sub-grains grew coherently along one common crystallographic direction forming much larger single crystal grains which are intercrossing in different directions forming an overall dendrite-like microstructure. Three types of microstructural defects were occasionally observed; small voids (<10 μm), fine cracks at grain boundaries (<10 μm) and cracks at weld line boundaries (>10 μm). Despite the presence of these defects, the yield and the ultimate tensile strength (UTS) were 870 and 430MPa and 1300MPa and 1160MPa, respectively, for the skin and core specimens which are higher than casted dental alloy. SIGNIFICANCE Although the formation of microstructural defects is hard to be avoided during the SLM process, the SLM CoCrMo alloys can achieve improved mechanical properties than their casted counterparts, implying they are "defect-tolerant".
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Affiliation(s)
- B Qian
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
| | - K Saeidi
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
| | - L Kvetková
- Institute of Materials Research of the Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - F Lofaj
- Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, 916 24 Trnava, Slovak Republic
| | - C Xiao
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
| | - Z Shen
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden.
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Liu L, Xu X, Jia L, Wei M, Qian B, Wu Y, Shen Y, Wang X, Pei H, Chen X. Primary fallopian tube carcinoma--a retrospective analysis of 66 cases. EUR J GYNAECOL ONCOL 2015; 36:161-167. [PMID: 26050354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Primary fallopian tube carcinoma (PFTC) is a rare malignant gynecologic oncology. There was no consensus on the outcome related clinicopathological characteristics. Present study aims to determine the prognosis associate factors in PFTC. MATERIALS AND METHODS In this retrospective study, the authors identified 50 PFTC patients in Jiangsu Institute of Cancer Research and 16 cases in the Affiliated People's Hospital of Inner Mongolia Medical College between 1988 and 2013. Disease surveillance was conducted based on the follow-up protocol of MD Anderson Cancer Center. Cox proportional hazards model and log-rank test were used to assess the associations between potential clinicpathologic characteristics and the survival durations. RESULTS The median progression free survival (PFS) and overall survival (OS) of PFTC were 36.9 and 62.7 months, respectively. FIGO Stage (p < 0.01, 0.01), grade (p = 0.02, 0.03), tumor residual after initial debulking surgery (p = 0.05, 0.01), nadir CA-125 (p = 0.01, 0.01) were independently related with PFS and OS. The PFS and OS of patients with Stage II PFTC were similar as those with Stage III-IV (30.7 vs 28.3 and 61.9 vs 49.2 months, respectively) but poorer than those of Stage I cases (N/A). The PFS of patients with paclitaxel-based chemotherapy was longer than those with other regime (51.3 vs 33.1 months), but not OS (62.7 vs 42.6 months). The outcome of patients underwent optimal initial cytoreduction surgery was better than those of suboptimal ones (PFS 56.4 vs 21.2 months and OS 65.3 vs 47.9 months, respectively). CONCLUSIOn: PFTC patients with FIGO Stage II disease should be regarded as advanced disease. Paclitaxel based chemotherapy was associated with longer PFS but not OS in PFTC.
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Xu F, Zhang H, Su Y, Kong J, Yu H, Qian B. Up-regulation of microRNA-183-3p is a potent prognostic marker for lung adenocarcinoma of female non-smokers. Clin Transl Oncol 2014; 16:980-5. [PMID: 24805982 DOI: 10.1007/s12094-014-1183-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 04/08/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND Lung cancer in never smokers presents predominately as adenocarcinoma and in females. MicroRNA-183 (miR-183) has various expression patterns in types of human cancers. In the present study, we evaluated the expression of miR-183-3p in female lung adenocarcinoma and adjacent noncancerous tissues and explored its relationship with clinicopathological characteristics and prognosis. METHODS In the present study, a hundred female nonsmoking patients who were newly diagnosed and histologically confirmed as lung adenocarcinoma at Tianjin Medical University Cancer Hospital were included. miR-183-3p expression of surgically removed NSCLC tissues and their corresponding normal lung tissues was measured by qRT-PCR assay. Associations of miR-183-3p expression with clinicopathological features were determined using the Student's t test. Log-rank test, and Cox proportional hazards model were used for survival analysis. RESULTS At first, miR-183-3p was up-regulated in lung cancer tissues when compared with the corresponding noncancerous lung tissues. Moreover, the expression of miR-183-3p in tumor tissue was found to be associated with lymph node metastasis (P = 0.043), clinical stage (P = 0.015), and EGFR mutation (P = 0.003). At last, high miR-183-3p expression was also associated with both poor overall survival and progression-free survival of women with lung adenocarcinoma (P = 0.005 and P = 0.010, respectively). CONCLUSION This study suggested that miR-183-3p expression might be involved in lung cancer pathogenesis and progression, and could be used as a potential prognostic biomarker of female lung adenocarcinoma.
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Affiliation(s)
- F Xu
- Department of Epidemiology and Biostatistics, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Tianjin, 300060, People's Republic of China
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Martino PF, Olesiak S, Batuuka D, Riley D, Neumueller S, Marshall BD, Qian B, Hodges MR, Forster HV. Differences between two inbred rat strains in the number of Kv 1.4 channel‐immunoreactive neurons in the nucleus tractus solitarius (NTS). FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.894.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paul F Martino
- Biology DepartmentCarthage CollegeKenoshaWI
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - S Olesiak
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - D Batuuka
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - D Riley
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - S Neumueller
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - B D Marshall
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - B Qian
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - M R Hodges
- PhysiologyMedical College of WisconsinMilwaukeeWI
| | - H V Forster
- PhysiologyMedical College of WisconsinMilwaukeeWI
- VA Medical CenterMilwaukeeWI
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Thampy V, Kang J, Rodriguez-Rivera JA, Bao W, Savici AT, Hu J, Liu TJ, Qian B, Fobes D, Mao ZQ, Fu CB, Chen WC, Ye Q, Erwin RW, Gentile TR, Tesanovic Z, Broholm C. Friedel-like oscillations from interstitial iron in superconducting Fe(1+y)Te0.62Se0.38. Phys Rev Lett 2012; 108:107002. [PMID: 22463442 DOI: 10.1103/physrevlett.108.107002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Indexed: 05/31/2023]
Abstract
Using polarized and unpolarized neutron scattering, we show that interstitial Fe in superconducting Fe(1+y)Te(1-x)Se(x) induces a magnetic Friedel-like oscillation that diffracts at Q⊥=(1/2 0) and involves >50 neighboring Fe sites. The interstitial >2μ(B) moment is surrounded by compensating ferromagnetic four-spin clusters that may seed double stripe ordering in Fe(1+y)Te. A semimetallic five-band model with (1/2 1/2) Fermi surface nesting and fourfold symmetric superexchange between interstitial Fe and two in-plane nearest neighbors largely accounts for the observed diffraction.
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Affiliation(s)
- V Thampy
- Institute for Quantum Matter and Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA
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Bonis JM, Neumueller SE, Marshall BD, Krause KL, Qian B, Pan LG, Hodges MR, Forster HV. The effects of lesions in the dorsolateral pons on the coordination of swallowing and breathing in awake goats. Respir Physiol Neurobiol 2010; 175:272-82. [PMID: 21145433 DOI: 10.1016/j.resp.2010.12.002] [Citation(s) in RCA: 34] [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] [Received: 08/24/2010] [Revised: 12/01/2010] [Accepted: 12/02/2010] [Indexed: 11/17/2022]
Abstract
The purpose of this retrospective study was to gain insight into the contribution of the dorsolateral pons to the coordination of swallowing and breathing in awake goats. In 4 goats, cannulas were chronically implanted bilaterally through the lateral (LPBN) and medial (MPBN) parabrachial nuclei just dorsal to the Kölliker-Fuse nucleus (KFN). After >2weeks recovery from this surgery, the goats were studied for 5½h on a control day, and on separate days after receiving 1 and 10μl injections of ibotenic acid (IA) separated by 1week. The frequency of swallows did not change during the control and 1μl IA studies, but after injection of 10μl IA, there was a transient 65% increase in frequency of swallows (P<0.05). Under control conditions swallows occurred throughout the respiratory cycle, where late-E swallows accounted for 67.6% of swallows. The distribution of swallow occurrence throughout the respiratory cycle was unaffected by IA injections. Consistent with the concept that swallowing is dominant over breathing, we found that swallows increased inspiratory (T(I)) and expiratory (T(E)) time and decreased tidal volume (V(T)) of the breath of the swallow (n) and/or the subsequent (n+1) breath. Injections of 10μl IA attenuated the normal increases in T(I) and T(E) and further attenuated V(T) of the n breath. Additionally, E and I swallows reset respiratory rhythm, but injection of 1 or 10μl IA progressively attenuated this resetting, suggesting a decreased dominance over respiratory motor output with increasing IA injections. Post mortem histological analysis revealed about 50% fewer (P<0.05) neurons remained in the KFN, LPBN, and MPBN in lesioned compared to control goats. We conclude that dorsolateral pontine nuclei have a modulatory role in a hypothesized holarchical neural network regulating swallowing and breathing particularly contributing to the normal dominance of swallowing over breathing in both rhythm and motor pattern generation.
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Affiliation(s)
- J M Bonis
- Medical College of Wisconsin, Department of Physiology, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States.
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Liu TJ, Hu J, Qian B, Fobes D, Mao ZQ, Bao W, Reehuis M, Kimber SAJ, Prokes K, Matas S, Argyriou DN, Hiess A, Rotaru A, Pham H, Spinu L, Qiu Y, Thampy V, Savici AT, Rodriguez JA, Broholm C. From (pi,0) magnetic order to superconductivity with (pi,pi) magnetic resonance in Fe(1.02)Te(1-x)Se(x). Nat Mater 2010; 9:716-20. [PMID: 20639892 DOI: 10.1038/nmat2800] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Accepted: 06/08/2010] [Indexed: 05/25/2023]
Abstract
The iron chalcogenide Fe(1+y)(Te(1-x)Se(x)) is structurally the simplest of the Fe-based superconductors. Although the Fermi surface is similar to iron pnictides, the parent compound Fe(1+y)Te exhibits antiferromagnetic order with an in-plane magnetic wave vector (pi,0) (ref. 6). This contrasts the pnictide parent compounds where the magnetic order has an in-plane magnetic wave vector (pi,pi) that connects hole and electron parts of the Fermi surface. Despite these differences, both the pnictide and chalcogenide Fe superconductors exhibit a superconducting spin resonance around (pi,pi) (refs 9, 10, 11). A central question in this burgeoning field is therefore how (pi,pi) superconductivity can emerge from a (pi,0) magnetic instability. Here, we report that the magnetic soft mode evolving from the (pi,0)-type magnetic long-range order is associated with weak charge carrier localization. Bulk superconductivity occurs as magnetic correlations at (pi,0) are suppressed and the mode at (pi, pi) becomes dominant for x>0.29. Our results suggest a common magnetic origin for superconductivity in iron chalcogenide and pnictide superconductors.
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Neumueller S, Hodges MR, Krause K, Marshall B, Bonis J, Qian B, Pan LG, Forster HV. Anatomic changes in multiple brainstem nuclei after incremental, near-complete neurotoxic destruction of the pre-Bötzinger Complex in adult goats. Respir Physiol Neurobiol 2010; 175:1-11. [PMID: 20601204 DOI: 10.1016/j.resp.2010.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 06/15/2010] [Accepted: 06/16/2010] [Indexed: 11/15/2022]
Abstract
Abrupt, bilateral destruction of the pre-Bötzinger Complex (preBötC) leads to terminal apnea in unanesthetized goats and rats. In contrast, respiratory rhythm and pattern and arterial blood gases in goats during wakefulness and sleep are normal after incremental (over a month) destruction of > 90% of the preBötC. Here, we tested the hypothesis that the difference in effects between abrupt and incremental destruction of the preBötC are a result of time-dependent plasticity, which manifests as anatomic changes at sites within the respiratory network. Accordingly, we report data from histological analyses comparing the brainstems of control goats, and goats that had undergone bilateral, incremental, ibotenic acid (IA)-induced preBötC lesioning. A major focus was on the parafacial respiratory group/retrotrapezoid nucleus (pFRG/RTN) and the pontine respiratory group (PRG), which are sites thought to contribute to respiratory rhythmogenesis. We also studied the facial (FN), rostral nucleus ambiguus (NA), medullary raphé (MRN), hypoglossal (HN), and the dorsal motor vagal (DMV) nuclei. Neuronal counts, count region area (mm²), and neuronal densities were calculated using computer-assisted analyses and/or manual microscopy to compare control and preBötC-lesioned animals. We found that within the ventral and lateral medulla 2mm rostral to the caudal pole of the FN (presumed pFRG/RTN), there were 25% and 65% more (P < 0.001) neurons, respectively, in preBötC-lesioned compared to control goats. Lesioned goats also showed 14% and 13% more (P < 0.001) neurons in the HN and medial parabrachialis nucleus, but 46%, 28%, 7%, and 17% fewer (P < 0.001) neurons in the FN, NA, DMV, and Kölliker-Fuse nuclei, respectively. In the remaining sites analyzed, there were no differences between groups. We conclude that anatomic changes at multiple sites within the respiratory network may contribute to the time-dependent plasticity in breathing following incremental and near-complete destruction of the preBötC.
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Affiliation(s)
- S Neumueller
- Department of Physiology, Medical College of Wisconsin, Milwaukee 53226-0509, WI, USA
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Bonis JM, Neumueller SE, Krause KL, Kiner T, Smith A, Marshall BD, Qian B, Pan LG, Forster HV. The pontine respiratory group, particularly the Kölliker-Fuse nucleus, mediates phases of the hypoxic ventilatory response in unanesthetized goats. J Appl Physiol (1985) 2010; 108:1321-35. [PMID: 20167677 PMCID: PMC2867534 DOI: 10.1152/japplphysiol.00935.2009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Accepted: 02/12/2010] [Indexed: 11/22/2022] Open
Abstract
The objective of the present study was to test the hypothesis that, in the in vivo awake goat model, perturbation/lesion in the pontine respiratory group (PRG) would decrease the sensitivity to hypercapnia and hypoxia. The study reported herein was part of two larger studies in which cholinergic modulation in the PRG was attenuated by microdialysis of atropine and subsequently ibotenic acid injections neurotoxically lesioned the PRG. In 14 goats, cannula were bilaterally implanted into either the lateral (n=4) or medial (n=4) parabrachial nuclei or the Kölliker-Fuse nucleus (KFN, n=6). Before and after cannula implantation, microdialysis of atropine, and injection of ibotenic acid, hypercapnic and hypoxic ventilatory sensitivities were assessed. Hypercapnic sensitivity was assessed by three 5-min periods at 3, 5, and 7% inspired CO2. In all groups of goats, CO2 sensitivity was unaffected (P>0.05) by any PRG perturbations/lesions. Hypoxic sensitivity was assessed with a 30-min period at 10.8% inspired O2. The response to hypoxia was typically triphasic, with a phase 1 increase in pulmonary ventilation, a phase 2 roll-off, and a phase 3 prolonged increase associated with shivering and increased metabolic rate and body temperature. In all groups of goats, the phase 1 of the hypoxic ventilatory responses was unaffected by any PRG perturbations/lesions, and there were no consistent effects on the phase 2 responses. However, in the KFN group of goats, the phase 3 ventilatory, shivering, metabolic rate, and temperature responses were markedly attenuated after the atropine dialysis studies, and the attenuation persisted after the ibotenic acid studies. These findings support an integrative or modulatory role for the KFN in the phase 3 responses to hypoxia.
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Affiliation(s)
- J. M. Bonis
- Department of Physiology, Medical College of Wisconsin
| | | | - K. L. Krause
- Department of Physiology, Medical College of Wisconsin
| | - T. Kiner
- Department of Physiology, Medical College of Wisconsin
| | - A. Smith
- Department of Physiology, Medical College of Wisconsin
| | | | - B. Qian
- Department of Physiology, Medical College of Wisconsin
| | - L. G. Pan
- Department of Physical Therapy, Marquette University, Milwaukee, Wisconsin
| | - H. V. Forster
- Department of Physiology, Medical College of Wisconsin
- Department of Veterans Affairs Medical Center, and
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