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Liu X, Wang Y, Zhang Q, Liu C, Song Y, Li Y, Yin Y, Cai Y. Confounding effects of seasonality and anthropogenic river regulation on suspended particulate matter-driven mercury transport to coastal seas. J Hazard Mater 2024; 469:133979. [PMID: 38492396 DOI: 10.1016/j.jhazmat.2024.133979] [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: 01/03/2024] [Revised: 02/22/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
Riverine mercury (Hg) is mainly transported to coastal areas in suspended particulate matter (SPM)-bound form, posing a potential threat to human health. Water discharge and SPM characteristics in rivers vary naturally with seasonality and can also be arbitrarily disrupted by anthropogenic regulation events, but their effects on Hg transport remain unresolved. Aiming to understand the confounding effects of seasonality and anthropogenic river regulation on Hg and SPM transport, this study selected the highly sediment-laden Yellow River as a representative conduit. Significant variations in SPM concentrations (108 - 7097 mg/L) resulted in fluctuations in total mercury (THg, 3.79 - 111 ng/L) in river water corresponding to seasonality and anthropogenic water/sediment regulation. Principal component analysis and structural equation model revealed that SPM was the essential factor controlling THg and particulate Hg (PHg) in river water. While SPM exhibited equilibrium state in the dry season, a net resuspension during the anthropogenic regulation and net deposition in the wet season demonstrated the impact of SPM dynamics on Hg distribution and transport to coastal regions. Combining water discharge, SPM, and Hg concentrations, a modified model was developed to quantify Hg flux (2256 kg), over 98% of which was in particulate phase.
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Affiliation(s)
- Xiaoquan Liu
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yingjun Wang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
| | - Qingzhe Zhang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Chengbin Liu
- Institute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yue Song
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yanbin Li
- 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
| | - Yongguang Yin
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yong Cai
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Department of Chemistry & Biochemistry, Florida International University, Miami, FL 33199, United States
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2
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Wang J, Sun D, Wang S, Li Z, Zhang Y, Li J, Zhang H. Satellite observations of suspended particulate matter concentration in Lake Gaoyou in the past four decades. Water Res 2024; 254:121442. [PMID: 38484550 DOI: 10.1016/j.watres.2024.121442] [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: 10/24/2023] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 04/06/2024]
Abstract
Suspended Particulate Matter (SPM) concentration stands as a pivotal determinant of water quality within lake ecosystems. However, comprehension of the enduring dynamics of SPM within lakes is severely hindered due to a shortage of long-term records. Our research has developed a robust remote sensing algorithm to retrieve the SPM concentration in Lake Gaoyou, situated in the lower reaches of the Huai River basin in China. The algorithm demonstrates commendable performance, with an uncertainty of 28.68 %. Leveraging Landsat series sensors imagery, our investigation yields high spatial resolution SPM concentration maps, which first provide a four-decades record of the SPM distribution within Lake Gaoyou. Our findings unveil a significant annual reduction of 1.35 mg L-1 in SPM concentration over the past four decades. This notable decline is probably attributable to a series of ecological initiatives to enhancing the management of the eco-friendly within the basin. Furthermore, our research delineated the influence of environmental factors on the intra-annual SPM dynamics across distinct spatial domains, encompassing the natural inlet region, semi-obstructed inlet region and outlet areas within the lake The SPM concentration in the natural inlet region exhibits a conspicuous correlation with precipitation. Increased precipitation induces runoff within the basin, facilitating the transport of suspended solids and sediment into the lake, consequently augmenting SPM levels. Conversely, the semi-obstructed inlet and outlet areas are predominantly influenced by the wind field, with variations in SPM attributed to sediment resuspension caused by water mixing driven by wind forcing. Our research can be considered an important reference to the evaluation of the management of the lake over long periods.
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Affiliation(s)
- Jian Wang
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Deyong Sun
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China; Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing 100081, China.
| | - Shengqiang Wang
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China; State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing 100081, China
| | - Zhenghao Li
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Yue Zhang
- Jiangsu Suli Environmental Technology Co. LTD, Nanjing 21036, China
| | - Junsheng Li
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
| | - Hailong Zhang
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China
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3
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Verhage M, van der Minne E, Kiens EM, Korol L, Spiteri RJ, Koster G, Green RJ, Baeumer C, Flipse CFJ. Electronic and Structural Disorder of the Epitaxial La 0.67Sr 0.33MnO 3 Surface. ACS Appl Mater Interfaces 2024. [PMID: 38619160 DOI: 10.1021/acsami.3c17639] [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] [Indexed: 04/16/2024]
Abstract
Understanding and tuning epitaxial complex oxide films are crucial in controlling the behavior of devices and catalytic processes. Substrate-induced strain, doping, and layer growth are known to influence the electronic and magnetic properties of the bulk of the film. In this study, we demonstrate a clear distinction between the bulk and surface of thin films of La0.67Sr0.33MnO3 in terms of chemical composition, electronic disorder, and surface morphology. We use a combined experimental approach of X-ray-based characterization methods and scanning probe microscopy. Using X-ray diffraction and resonant X-ray reflectivity, we uncover surface nonstoichiometry in the strontium and lanthanum alongside an accumulation of oxygen vacancies. With scanning tunneling microscopy, we observed an electronic phase separation (EPS) on the surface related to this nonstoichiometry. The EPS is likely driving the temperature-dependent resistivity transition and is a cause of proposed mixed-phase ferromagnetic and paramagnetic states near room temperature in these thin films.
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Affiliation(s)
- Michael Verhage
- Molecular Materials and Nanosystems (M2N)─Department of Applied Physics, Eindhoven University of Technology, Eindhoven 5612 AP, Netherlands
| | - Emma van der Minne
- MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, Enschede 7522 NB, Netherlands
| | - Ellen M Kiens
- MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, Enschede 7522 NB, Netherlands
| | - Lucas Korol
- Department of Physics & Engineering Physics, University of Saskatchewan, Saskatoon S7N 5A2, Canada
| | - Raymond J Spiteri
- Department of Computer Science, University of Saskatchewan, Saskatoon S7N 5A2, Canada
| | - Gertjan Koster
- MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, Enschede 7522 NB, Netherlands
| | - Robert J Green
- Department of Physics & Engineering Physics, University of Saskatchewan, Saskatoon S7N 5A2, Canada
- Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Christoph Baeumer
- MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, Enschede 7522 NB, Netherlands
- Peter Gruenberg Institute and JARA-FIT, Forschungszentrum Juelich GmbH, Juelich 52428, Germany
| | - Cornelis F J Flipse
- Molecular Materials and Nanosystems (M2N)─Department of Applied Physics, Eindhoven University of Technology, Eindhoven 5612 AP, Netherlands
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4
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Wang D, Woodcock E, Yang X, Nishikawa H, Sviderskaya EV, Oshima M, Edwards C, Zhang Y, Korchev Y. Exploration of individual colorectal cancer cell responses to H 2O 2 eustress using hopping probe scanning ion conductance microscopy. Sci Bull (Beijing) 2024:S2095-9273(24)00222-6. [PMID: 38644130 DOI: 10.1016/j.scib.2024.04.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/12/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024]
Abstract
Colorectal cancer (CRC), a widespread malignancy, is closely associated with tumor microenvironmental hydrogen peroxide (H2O2) levels. Some clinical trials targeting H2O2 for cancer treatment have revealed its paradoxical role as a promoter of cancer progression. Investigating the dynamics of cancer cell H2O2 eustress at the single-cell level is crucial. In this study, non-contact hopping probe mode scanning ion conductance microscopy (HPICM) with high-sensitive Pt-functionalized nanoelectrodes was employed to measure dynamic extracellular to intracellular H2O2 gradients in individual colorectal cancer Caco-2 cells. We explored the relationship between cellular mechanical properties and H2O2 gradients. Exposure to 0.1 or 1 mmol/L H2O2 eustress increased the extracellular to intracellular H2O2 gradient from 0.3 to 1.91 or 3.04, respectively. Notably, cellular F-actin-dependent stiffness increased at 0.1 mmol/L but decreased at 1 mmol/L H2O2 eustress. This H2O2-induced stiffness modulated AKT activation positively and glutathione peroxidase 2 (GPX2) expression negatively. Our findings unveil the failure of some H2O2-targeted therapies due to their ineffectiveness in generating H2O2, which instead acts eustress to promote cancer cell survival. This research also reveals the complex interplay between physical properties and biochemical signaling in cancer cells' antioxidant defense, illuminating the exploitation of H2O2 eustress for survival at the single-cell level. Inhibiting GPX and/or catalase (CAT) enhances the cytotoxic activity of H2O2 eustress against CRC cells, which holds significant promise for developing innovative therapies targeting cancer and other H2O2-related inflammatory diseases.
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Affiliation(s)
- Dong Wang
- WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kanazawa 920-1192, Japan
| | - Emily Woodcock
- Department of Medicine, Imperial College London, London W12 0NN, United Kingdom; Cell Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London SW17 0RE, United Kingdom
| | - Xi Yang
- WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kanazawa 920-1192, Japan
| | - Hiromi Nishikawa
- WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kanazawa 920-1192, Japan
| | - Elena V Sviderskaya
- Cell Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London SW17 0RE, United Kingdom
| | - Masanobu Oshima
- WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kanazawa 920-1192, Japan
| | - Christopher Edwards
- Department of Medicine, Imperial College London, London W12 0NN, United Kingdom
| | - Yanjun Zhang
- WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kanazawa 920-1192, Japan; Department of Medicine, Imperial College London, London W12 0NN, United Kingdom.
| | - Yuri Korchev
- Department of Medicine, Imperial College London, London W12 0NN, United Kingdom; WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kanazawa 920-1192, Japan.
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5
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Djuricic I, Calder PC. Omega-3 ( n-3) Fatty Acid-Statin Interaction: Evidence for a Novel Therapeutic Strategy for Atherosclerotic Cardiovascular Disease. Nutrients 2024; 16:962. [PMID: 38612996 PMCID: PMC11013773 DOI: 10.3390/nu16070962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Managing atherosclerotic cardiovascular disease (ASCVD) often involves a combination of lifestyle modifications and medications aiming to decrease the risk of cardiovascular outcomes, such as myocardial infarction and stroke. The aim of this article is to discuss possible omega-3 (n-3) fatty acid-statin interactions in the prevention and treatment of ASCVD and to provide evidence to consider for clinical practice, highlighting novel insights in this field. Statins and n-3 fatty acids (eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)) are commonly used to control cardiovascular risk factors in order to treat ASCVD. Statins are an important lipid-lowering therapy, primarily targeting low-density lipoprotein cholesterol (LDL-C) levels, while n-3 fatty acids address triglyceride (TG) concentrations. Both statins and n-3 fatty acids have pleiotropic actions which overlap, including improving endothelial function, modulation of inflammation, and stabilizing atherosclerotic plaques. Thus, both statins and n-3 fatty acids potentially mitigate the residual cardiovascular risk that remains beyond lipid lowering, such as persistent inflammation. EPA and DHA are both substrates for the synthesis of so-called specialized pro-resolving mediators (SPMs), a relatively recently recognized feature of their ability to combat inflammation. Interestingly, statins seem to have the ability to promote the production of some SPMs, suggesting a largely unrecognized interaction between statins and n-3 fatty acids with relevance to the control of inflammation. Although n-3 fatty acids are the major substrates for the production of SPMs, these signaling molecules may have additional therapeutic benefits beyond those provided by the precursor n-3 fatty acids themselves. In this article, we discuss the accumulating evidence that supports SPMs as a novel therapeutic tool and the possible statin-n-3 fatty acid interactions relevant to the prevention and treatment of ASCVD.
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Affiliation(s)
- Ivana Djuricic
- Department of Bromatology, Faculty of Pharmacy, University of Belgrade, 11221 Belgrade, Serbia;
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton SO16 6YD, UK
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6
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Donnelly CJ, Weir G, Jackson C, Alderson J, Rafeeuddin R, Sharir R, Vanrenterghem J, Robinson MA. The inter-laboratory equivalence for lower limb kinematics and kinetics during unplanned sidestepping. Sports Biomech 2024; 23:324-334. [PMID: 33886425 DOI: 10.1080/14763141.2020.1860254] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 12/01/2020] [Indexed: 01/14/2023]
Abstract
Much inter-intra-tester kinematic and kinetic repeatability research exists, with a paucity investigating inter-laboratory equivalence. The objective of this research was to evaluate the inter-laboratory equivalence between time varying unplanned kinematics and moments of unplanned sidestepping (UnSS). Eight elite female athletes completed an established UnSS procedure motion capture laboratories in the UK and Australia. Three dimensional time varying unplanned sidestepping joint kinematics and moments were compared. Discrete variables were change of direction angles and velocity. Waveform data were compared using mean differences, 1D 95%CI and RMSE. Discrete variables were compared using 0D 95% CI. The mean differences and 95%CI for UnSS kinematics broadly supported equivalence between laboratories (RMSE≤5.1°). Excluding hip flexion/extension moments (RMSE = 1.04 Nm/kg), equivalence was also supported for time varying joint moments between laboratories (RMSE≤0.40 Nm/kg). Dependent variables typically used to characterise UnSS were also equivalent. When consistent experimental and modelling procedures are employed, consistent time varying UnSS lower limb joint kinematic and moment estimates between laboratories can be obtained. We therefore interpret these results as a support of equivalence, yet highlight the challenges of establishing between-laboratory experiments or data sharing, as well as establishing appropriate ranges of acceptable uncertainty. These findings are important for data sharing and multi-centre trials.
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Affiliation(s)
- Cyril J Donnelly
- The Rehabilitation Research Institute of Singapore, Singapore, Singapore
- The School of Human Sciences (Sport and Exercise Science), The University of Western Australia, Perth, Australia
| | - Gillian Weir
- The School of Human Sciences (Sport and Exercise Science), The University of Western Australia, Perth, Australia
- Biomechanics Laboratory, Department of Kinesiology, The University of Massachusetts Amherst, Amherst, MA, USA
| | - Chris Jackson
- The School of Human Sciences (Sport and Exercise Science), The University of Western Australia, Perth, Australia
| | - Jacqueline Alderson
- The School of Human Sciences (Sport and Exercise Science), The University of Western Australia, Perth, Australia
| | - Radin Rafeeuddin
- Faculty of Sport Science and Recreation, Universiti Teknologi MARA (Uitm), Kuala Lumpur, Malaysia
- School of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - Raihana Sharir
- Faculty of Sport Science and Recreation, Universiti Teknologi MARA (Uitm), Kuala Lumpur, Malaysia
- School of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - Jos Vanrenterghem
- School of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Mark A Robinson
- School of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
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7
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Liu X, Sheng Y, Liu Q, Li Z. Suspended particulate matter affects the distribution and migration of heavy metals in the Yellow River. Sci Total Environ 2024; 912:169537. [PMID: 38141984 DOI: 10.1016/j.scitotenv.2023.169537] [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: 08/22/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Suspended particulate matter (SPM) is an important heavy metal transporter in water. As a well-known high-SPM river, its impact on the distribution and migration of heavy metals in the Yellow River (YR) deserves special attention. In this study, the spatial distributions of heavy metals in surface water and SPM of the YR were investigated. The results indicate that the concentrations (dissolved and particulate phases) and bioavailability (particulate phase) of most heavy metals were higher during the rainy season than during the dry season. A considerable proportion of heavy metals (>70 %) was transported by SPM and fine particles (clay) controlled the pollution status of heavy metals in the YR. This could lead to higher heavy metal concentrations in the SPM midstream and downstream during the rainy season and higher heavy metal concentrations in upstream during the dry season. Heavy metal adsorption experiments showed that specific combination methods (such as binding with carbonate) between Cd and SPM may cause SPM to act as a source of Cd midstream and downstream. This study provides a new perspective on the effects of SPM on heavy metal distribution and migration in the YR.
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Affiliation(s)
- Xiaozhu Liu
- State Environmental Protection Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation, Shandong Academy for Environmental Planning, Jinan, China; CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yanqing Sheng
- State Environmental Protection Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation, Shandong Academy for Environmental Planning, Jinan, China; CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China.
| | - Qunqun Liu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Zhaoran Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
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8
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Henderson ZJ, Wang S, Cornish SM, Scribbans TD. Exploring the acute muscle fatigue response in resistance trained individuals during eccentric quasi-isometric elbow flexions-a cross-sectional comparison of repetition and sex. Sports Biomech 2023:1-23. [PMID: 37921046 DOI: 10.1080/14763141.2023.2269543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 09/27/2023] [Indexed: 11/04/2023]
Abstract
Eccentric quasi-isometrics (EQIs) are a novel, low-velocity resistance exercise technique that incorporates a holding isometric contraction to positional fatigue, followed by voluntary resistance of the resulting eccentric muscle action. As females are typically more fatigue resistant than males during isometric and low-velocity dynamic muscle actions, this study explored sex-differences in the muscle fatigue response to an EQI protocol. Twenty-five (n = 12 female) participants completed 4 unilateral EQI elbow flexions. Absolute and relative surface electromyography (sEMG) amplitude (iEMG, LE peak), mean power frequency (MPF), angular impulse (aIMP), and elbow angle were compared across repetitions and between sexes using discrete values and statistical parametric/non-parametric mapping. There were significant and substantial sex and repetition differences in absolute iEMG, MPF, and aIMP, however, males and females had statistically similar absolute aIMP by repetition 4. When expressed relatively, there were no significant sex-differences. Additionally, there were significant between repetition changes in sEMG amplitude and elbow angle with an increasing number of repetitions, largely in the first-two thirds of repetition time. The current study suggests that there are absolute, but not relative sex-differences in EQI induced muscle fatigue, and the effects across repetitions occur predominately in the first two-thirds of repetition time.
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Affiliation(s)
| | - Shizhen Wang
- Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada
| | - Stephen M Cornish
- Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada
| | - Trisha D Scribbans
- Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada
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Pathak Z, Jadav T, Roy A, Chopra M, Singh N, Sengupta P, Kumar H. Maresin-1 prevents blood-spinal cord barrier disruption associated with TRPV4 elevation in the experimental model of spinal cord injury. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159395. [PMID: 37729963 DOI: 10.1016/j.bbalip.2023.159395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/22/2023]
Abstract
Recently, we reported the TRPV4 ion channel activation and its association with secondary damage after spinal cord injury (SCI). TRPV4 activation is linked with blood-spinal cord barrier (BSCB) disruption, endothelial damage, and inflammation after SCI. Specialized pro-resolving mediators (SPM) are endogenous lipid mediators released for inflammation resolution. Studies suggest that SPM could act as an endogenous antagonist of ion channels directly or indirectly at the plasma membrane. Herein, we studied the effect of maresin-1, a docosahexaenoic acid (DHA)-derived SPM, in SCI-induced TRPV4 expression and subsequent associated damage. First, employing a particular agonist (4αPDD) in endothelial and neuronal cell lines, we examined the potential of maresin-1 to block TRPV4 activation. Then we quantify the DHA levels in plasma and epicenter of the spinal cord in sham and at 1, 3, 7, 14, 21, and 28-days post-injury (DPI) using LC-MS. Then, we exogenously administered maresin-1 using two dosing regimens i.e., single-dose (1 μg) and multiple-dose (1 μg/day for seven days), to confirm its role in the TRPV4 inhibition and its linked damage. After SCI, DHA levels decrease in the spinal cord epicenter area as well as in the plasma. Treatment with maresin-1 attenuates TRPV4 expression, inflammatory cytokines, and chemokines and impedes neutrophil infiltration. Furthermore, treatment with maresin-1 prevents BSCB disruption, alleviates glial scar formation, and improves functional recovery. Thus, our results suggest that maresin-1 could modulate TRPV4 expression and could be a safe and promising approach to target inflammation and BSCB damage after SCI.
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Affiliation(s)
- Zarna Pathak
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Tarang Jadav
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Abhishek Roy
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Manjeet Chopra
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Nidhi Singh
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Pinaki Sengupta
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Hemant Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat 382355, India.
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10
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Hofmann D, Chesebro AG, Rackauckas C, Mujica-Parodi LR, Friston KJ, Edelman A, Strey HH. Leveraging Julia's automated differentiation and symbolic computation to increase spectral DCM flexibility and speed. bioRxiv 2023:2023.10.27.564407. [PMID: 37961652 PMCID: PMC10634910 DOI: 10.1101/2023.10.27.564407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Using neuroimaging and electrophysiological data to infer neural parameter estimations from theoretical circuits requires solving the inverse problem. Here, we provide a new Julia language package designed to i) compose complex dynamical models in a simple and modular way with ModelingToolkit.jl, ii) implement parameter fitting based on spectral dynamic causal modeling (sDCM) using the Laplace approximation, analogous to MATLAB implementation in SPM12, and iii) leverage Julia's unique strengths to increase accuracy and speed by employing Automatic Differentiation during the fitting procedure. To illustrate the utility of our flexible modular approach, we provide a method to improve correction for fMRI scanner field strengths (1.5T, 3T, 7T) when fitting models to real data.
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Affiliation(s)
- David Hofmann
- Laufer Center for Physical and Quantitative Biology, State University of New York at Stony Brook, NY
- Computer Science and Artificial Intelligence Lab, Massachusetts Institute of Technology, MA
| | - Anthony G Chesebro
- Laufer Center for Physical and Quantitative Biology, State University of New York at Stony Brook, NY
- Department of Biomedical Engineering, State University of New York at Stony Brook, NY
| | - Chris Rackauckas
- Computer Science and Artificial Intelligence Lab, Massachusetts Institute of Technology, MA
| | - Lilianne R Mujica-Parodi
- Laufer Center for Physical and Quantitative Biology, State University of New York at Stony Brook, NY
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, MA
- Department of Biomedical Engineering, State University of New York at Stony Brook, NY
- Baszucki Endowed Chair for Metabolic Neuroscience, Stony Brook University, NY
| | - Karl J Friston
- Wellcome Trust Centre for Neuroimaging, University College London, London UK
| | - Alan Edelman
- Computer Science and Artificial Intelligence Lab, Massachusetts Institute of Technology, MA
| | - Helmut H Strey
- Laufer Center for Physical and Quantitative Biology, State University of New York at Stony Brook, NY
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, MA
- Department of Biomedical Engineering, State University of New York at Stony Brook, NY
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11
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Sahni V, Van Dyke TE. Immunomodulation of periodontitis with SPMs. Front Oral Health 2023; 4:1288722. [PMID: 37927821 PMCID: PMC10623003 DOI: 10.3389/froh.2023.1288722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Inflammation is a critical component in the pathophysiology of numerous disease processes, with most therapeutic modalities focusing on its inhibition in order to achieve treatment outcomes. The resolution of inflammation is a separate, distinct pathway that entails the reversal of the inflammatory process to a state of homoeostasis rather than selective inhibition of specific components of the inflammatory cascade. The discovery of specialized pro-resolving mediators (SPMs) resulted in a paradigm shift in our understanding of disease etiopathology. Periodontal disease, traditionally considered as one of microbial etiology, is now understood to be an inflammation-driven process associated with dysbiosis of the oral microbiome that may be modulated with SPMs to achieve therapeutic benefit.
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Affiliation(s)
- Vaibhav Sahni
- Immunology and Infectious Disease, The Forsyth Institute, Cambridge, MA, United States
| | - Thomas E. Van Dyke
- Immunology and Infectious Disease, The Forsyth Institute, Cambridge, MA, United States
- Faculty of Medicine, Harvard University, Boston, MA, United States
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12
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Ravichandran KS. Phagocytic clearance of dying cells and its implications. Immunol Rev 2023; 319:4-6. [PMID: 37858307 DOI: 10.1111/imr.13285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Affiliation(s)
- Kodi S Ravichandran
- Department of Pathology and Immunology, Division of Immunobiology, Washington University School of Medicine, Saint Louis, Missouri, USA
- Department of Biomedical Molecular Biology, Ghent University, and the Inflammation Research Center, VIB, Ghent, Belgium
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13
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Avivi I, Vesole DH, Davila-Valls J, Usnarska-Zubkiewicz L, Olszewska-Szopa M, Milunovic V, Baumert B, Osękowska B, Kopińska A, Gentile M, Puertas-Martinez B, Robak P, Crusoe E, Rodriguez-Lobato LG, Gajewska M, Varga G, Delforge M, Cohen Y, Gozzetti A, Pena C, Shustik C, Mikala G, Zalac K, Alexander HD, Barth P, Weisel K, Martínez-López J, Waszczuk-Gajda A, Krzystański M, Jurczyszyn A. Outcome of Second Primary Malignancies Developing in Multiple Myeloma Patients. Cancers (Basel) 2023; 15:4359. [PMID: 37686635 PMCID: PMC10487060 DOI: 10.3390/cancers15174359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/15/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND There is an increased risk of second primary malignancies (SMPs) in patients with multiple myeloma (MM). This multinational 'real-world' retrospective study analyzed the characteristics and outcomes of MM patients that developed SPMs. RESULTS 165 patients were analyzed: 62.4% males; 8.5% with a prior cancer; 113 with solid SPMs, mainly ≥stage 2; and 52 with hematological SPM (hemato-SPM), mainly MDS/AML. Patients with hemato-SPM were younger (p = 0.05) and more frequently had a prior AutoHCT (p = 0.012). The time to SPM was shorter in the older (>65 years) and more heavily pretreated patients. One hundred patients were actively treated at the time of SPM detection. Treatment was discontinued in 52, substituted with another anti-MM therapy in 15, and continued in 33 patients. Treatment discontinuation was predominant in the patients diagnosed with hemato-SPM (76%). The median OS following SPM detection was 8.5 months, and the main cause of death was SPM. A poor ECOG status predicted a shorter OS (PS 3 vs. 0, HR = 5.74, 2.32-14.21, p < 0.001), whereas a normal hemoglobin level (HR = 0.43, 0.19-0.95, p = 0.037) predicted longer OS. CONCLUSIONS With the continuing improvement in OS, a higher proportion of MM patients might develop SPM. The OS following SPM diagnosis is poor; hence, frequent surveillance and early detection are imperative to improve outcomes.
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Affiliation(s)
- Irit Avivi
- Department of Hematology, Tel Aviv Sourasky Medical Center and Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - David H. Vesole
- Hackensack University Medical Center, New Jersey Medical School, Rutgers University, Hackensack, NJ 07601, USA
| | | | - Lidia Usnarska-Zubkiewicz
- Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Magdalena Olszewska-Szopa
- Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Vibor Milunovic
- Division of Hematology, Clinical Hospital Merkur, 10000 Zagreb, Croatia
| | - Bartłomiej Baumert
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland; (B.B.)
| | - Bogumiła Osękowska
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland; (B.B.)
| | - Anna Kopińska
- Department of Hematology and Bone Marrow Transplantation, Medical University of Silesia, 40-032 Katowice, Poland
| | - Massimo Gentile
- Hematology Unit AO of Cosenza, Cosenza and Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Borja Puertas-Martinez
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Cancer Research Center-IBMCC (USAL-CSIC), CIBERONC, University Hospital of Salamanca, 37007 Salamanca, Spain
| | - Paweł Robak
- Department of Hematology, Copernicus Memorial Hospital, Medical University of Lodz, 90-752 Lodz, Poland
| | - Edvan Crusoe
- Universidade Federal da Bahia, Hospital Universitário Professor Edgar Santos, Serviço de Hematologia, Salvador 40110-909, BA, Brazil
| | - Luis Gerardo Rodriguez-Lobato
- Amyloidosis and Multiple Myeloma Unit, Department of Hematology, Hospital Clínic of Barcelona, IDIBAPS, 08036 Barcelona, Spain
| | - Małgorzata Gajewska
- Department of Internal Medicine and Hematology, Military Institute of Medicine, 04-141 Warsaw, Poland
| | - Gergely Varga
- Department of Internal Medicine and Haematology, Semmelweis University, 1085 Budapest, Hungary
| | | | - Yael Cohen
- Department of Hematology, Tel Aviv Sourasky Medical Center and Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Alessandro Gozzetti
- Department of Medical Science, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Camila Pena
- Sección Hematología, Hospital del Salvador, Santiago 13123, Chile
| | - Chaim Shustik
- Royal Victoria Hospital, McGill University Health Centre, Montreal, QC H4A 3J1, Canada
| | - Gabor Mikala
- Department of Hematology and Stem Cell Transplantation, National Institute for Hematology and Infectious Diseases, South Pest Central Hospital, 1097 Budapest, Hungary;
| | - Klara Zalac
- Department of Hematology, Clinics for Internal Medicine, University Hospital Center “Sestre Milosrdnice”, 10000 Zagreb, Croatia
| | - H. Denis Alexander
- Personalised Medicine Centre, School of Medicine, Ulster University, Derry/Londonderry BT47 6SB, UK;
| | - Peter Barth
- Department of Medicine, Warren Alpert Medical School, Brown University, Providence, RI 02912, USA
| | - Katja Weisel
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Medical-Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | | | - Anna Waszczuk-Gajda
- Department of Hematology, Oncology and Internal Diseases, Warsaw Medical University, 02-097 Warsaw, Poland
| | | | - Artur Jurczyszyn
- Department of Hematology, Jagiellonian University Medical College, 31-155 Crakow, Poland;
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Sundar PKS, Kundapura S. Spatiotemporal variation in the water quality of Vembanad Lake, Kerala, India: a remote sensing approach. Environ Monit Assess 2023; 195:1097. [PMID: 37626276 DOI: 10.1007/s10661-023-11746-0] [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: 03/13/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
Water quality is one of the essential parameters of environmental monitoring; even a slight variation in its characteristics may significantly influence the ecosystem. The water quality of Vembanad Lake is affected by anthropogenic effects such as industrial effluents and tourism. The optical parameters representing water quality, such as diffuse attenuation (Kd), turbidity, suspended particulate matter (SPM), and chlorophyll-a (Chl-a), are considered in this study to evaluate the water quality of Vembanad Lake, Kerala, India. As this lake is regarded as of ecological importance by the Ramsar Convention and has faced severe concerns over recent years, there was a substantial change in the water quality during the lockdowns of the COVID-19 pandemic. This research is aimed at examining the change in water quality using optical data from Sentinel-2 satellites in the ACOLITE processing software from 2016 to 2021. The analyses showed a 2.5% decrease in the values of Kd, whereas SPM and turbidity show a reduction of about 4.3% from the year 2016 to 2021. The flood and the COVID lockdown had an impact on the improvement in the quality of water from 2018 to 2021. The findings indicated that the reduction in industrial activities and tourism had a more significant effect on the improvement in the water quality of the lake. There was no substantial change in the Chl-a until 2020, whereas an average decrease of 12% in Chl-a values was observed throughout 2021. This decrease can be attributed to the reduction in the lake's hydrological residence time (HRT). Thus, these findings will be a valuable reference to help the government and non-government organizations (NGO) during strategic planning.
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Affiliation(s)
| | - Subrahmanya Kundapura
- Faculty of Water Resources Engineering, Department of Water Resources and Ocean Engineering, National Institute of Technology Karnataka, Mangaluru, 575 025, India
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Jones JR, Cairns DA, Menzies T, Pawlyn C, Davies FE, Sigsworth R, Brioli A, Jenner MW, Kaiser MF, Olivier C, Reed M, Drayson MT, Owen RG, Boyd KD, Cook G, Morgan GJ, Jackson GH. Maintenance lenalidomide in newly diagnosed transplant eligible and non-eligible myeloma patients; profiling second primary malignancies in 4358 patients treated in the Myeloma XI Trial. EClinicalMedicine 2023; 62:102099. [PMID: 37554123 PMCID: PMC10404862 DOI: 10.1016/j.eclinm.2023.102099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 08/10/2023] Open
Abstract
Background Early trials of long-term lenalidomide use reported an increased incidence of second primary malignancy (SPM), including acute myeloid leukaemia and myelodysplastic syndrome. Later, meta-analysis suggested the link to be secondary to lenalidomide in combination with melphalan. Methods Myeloma XI is a large, phase III randomised trial in-which lenalidomide was used at induction and maintenance, in transplant eligible (TE) and non-eligible (TNE) newly diagnosed patients (NCT01554852). Here we present an analysis of SPM incidence and profile the SPM type to determine the impact of autologous stem cell transplantation (ASCT) and lenalidomide exposure in 4358 patients treated on study. Data collection took place from the start of the trial in May 2010, to May 2019, as per the protocol timeline. The Median follow-up following maintenance randomisation was 54.5 and 46.1 months for TE and TNE patients, respectively. Findings In the TE pathway, the overall SPM incidence was 7.7% in lenalidomide maintenance patients compared to 3.2% in those being observed (p = 0.006). Although the TNE lenalidomide maintenance patients had the greatest SPM incidence (15.4%), this was not statistically significant when compared to the observed patients (10%, p = 0.10).The SPM incidence was higher in patients who received lenalidomide at induction and maintenance (double exposure), when compared to those treated with lenalidomide at one time point (single exposure). Again, this was most marked in TNE patients where the overall SPM incidence was 16.9% in double exposed patients, compared to 11.7% in single exposed patients, and 11.2% in patients who did not receive lenalidomide (p = 0.04). This is likely an effect of treatment duration, with the median number of cycles being 27 in the TNE double exposed patients, vs 6 in the single exposure patients.Haematological SPMs were uncommon, diagnosed in 50 patients (incidence 1.1%). The majority of cases were diagnosed in TE patients treated with lenalidomide maintenance (n = 25, incidence 2.8%), suggesting a possible link with melphalan. Non-melanoma skin cancer incidence was highest in patients receiving lenalidomide maintenance, particularly in TNE patients, where squamous cell carcinoma and basal cell carcinoma were diagnosed in 5.5% and 2.6% of patients, respectively. The incidence of most solid tumour types was higher in lenalidomide maintenance patients.Mortality due to progressive myeloma was reduced in patients receiving lenalidomide maintenance, noted to be 16.6% compared 22.6% in those observed in TE patients and 32.7% compared to 41.5% in TNE patients. SPM related mortality was low, 1.8% and 6.1% in TE and TNE lenalidomide maintenance patients, respectively, compared to 0.4% and 2.8% in those being observed. Interpretation This provides reassurance that long-term lenalidomide treatment is safe and associated with improved outcomes in TE and TNE populations, although monitoring for SPM development should be incorporated into clinic review processes. Funding Primary financial support was from Cancer Research UK [C1298/A10410].
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Affiliation(s)
- John R. Jones
- Brighton and Sussex Medical School, Brighton, UK
- Kings College Hospital, London, UK
- East Sussex NHS Trust, UK
| | - David A. Cairns
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
| | - Tom Menzies
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
| | - Charlotte Pawlyn
- The Institute of Cancer Research, London, UK
- The Royal Marsden Hospital, London, UK
| | | | - Rachel Sigsworth
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
| | - Annamaria Brioli
- Clinic of Internal Medicine C, Greifswald University Medicine, Greifswald, Germany
| | - Matthew W. Jenner
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Martin F. Kaiser
- The Institute of Cancer Research, London, UK
- The Royal Marsden Hospital, London, UK
| | - Catherine Olivier
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
| | - Molly Reed
- Brighton and Sussex Medical School, Brighton, UK
| | - Mark T. Drayson
- Clinical Immunology, University of Birmingham, Birmingham, UK
| | | | | | - Gordon Cook
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
- Clinical Immunology, University of Birmingham, Birmingham, UK
| | | | | | - NCRI Haemato-Oncology CSG
- Brighton and Sussex Medical School, Brighton, UK
- Kings College Hospital, London, UK
- East Sussex NHS Trust, UK
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
- The Institute of Cancer Research, London, UK
- The Royal Marsden Hospital, London, UK
- Perlmutter Cancer Center, NY Langone Health, New York, USA
- Clinic of Internal Medicine C, Greifswald University Medicine, Greifswald, Germany
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Clinical Immunology, University of Birmingham, Birmingham, UK
- St James’s University Hospital, Leeds, UK
- Department of Haematology, Newcastle University, Newcastle, UK
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16
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Koncz G, Jenei V, Tóth M, Váradi E, Kardos B, Bácsi A, Mázló A. Damage-mediated macrophage polarization in sterile inflammation. Front Immunol 2023; 14:1169560. [PMID: 37465676 PMCID: PMC10351389 DOI: 10.3389/fimmu.2023.1169560] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/07/2023] [Indexed: 07/20/2023] Open
Abstract
Most of the leading causes of death, such as cardiovascular diseases, cancer, dementia, neurodegenerative diseases, and many more, are associated with sterile inflammation, either as a cause or a consequence of these conditions. The ability to control the progression of inflammation toward tissue resolution before it becomes chronic holds significant clinical potential. During sterile inflammation, the initiation of inflammation occurs through damage-associated molecular patterns (DAMPs) in the absence of pathogen-associated molecules. Macrophages, which are primarily localized in the tissue, play a pivotal role in sensing DAMPs. Furthermore, macrophages can also detect and respond to resolution-associated molecular patterns (RAMPs) and specific pro-resolving mediators (SPMs) during sterile inflammation. Macrophages, being highly adaptable cells, are particularly influenced by changes in the microenvironment. In response to the tissue environment, monocytes, pro-inflammatory macrophages, and pro-resolution macrophages can modulate their differentiation state. Ultimately, DAMP and RAMP-primed macrophages, depending on the predominant subpopulation, regulate the balance between inflammatory and resolving processes. While sterile injury and pathogen-induced reactions may have distinct effects on macrophages, most studies have focused on macrophage responses induced by pathogens. In this review, which emphasizes available human data, we illustrate how macrophages sense these mediators by examining the expression of receptors for DAMPs, RAMPs, and SPMs. We also delve into the signaling pathways induced by DAMPs, RAMPs, and SPMs, which primarily contribute to the regulation of macrophage differentiation from a pro-inflammatory to a pro-resolution phenotype. Understanding the regulatory mechanisms behind the transition between macrophage subtypes can offer insights into manipulating the transition from inflammation to resolution in sterile inflammatory diseases.
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Affiliation(s)
- Gábor Koncz
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktória Jenei
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Márta Tóth
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eszter Váradi
- Institute of Genetics, Biological Research Centre, Eotvos Lorand Research Network, Szeged, Hungary
- Doctoral School in Biology, University of Szeged, Szeged, Hungary
| | - Balázs Kardos
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Bácsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Allergology Research Group, Debrecen, Hungary
| | - Anett Mázló
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Malus J, Urbaczka J, Rygelova M, Casula V, Nieminen M, Monte A, Horka V, Uchytil J. Effect of Footwear Type on Biomechanical Risk Factors for Knee Osteoarthritis. Orthop J Sports Med 2023; 11:23259671231183416. [PMID: 37560612 PMCID: PMC10406632 DOI: 10.1177/23259671231183416] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/31/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Regular walking in different types of footwear may increase the mediolateral shear force, knee adduction moment, or vertical ground-reaction forces that could increase the risk of early development of knee osteoarthritis (OA). PURPOSE To compare kinematic and kinetic parameters that could affect the development of knee OA in 3 footwear conditions. STUDY DESIGN Controlled laboratory study. METHODS A total of 40 asymptomatic participants performed walking trials in the laboratory at self-selected walking speeds under barefoot (BF), minimalistic (MF), and neutral (NF) footwear conditions. Knee joint parameters were described using discrete point values, and continuous curves were evaluated using statistical parametric mapping. A 3 × 1 repeated-measures analysis of variance was used to determine the main effect of footwear for both discrete and continuous data. To compare differences between footwear conditions, a post hoc paired t test was used. RESULTS Discrete point analyses showed a significantly greater knee power in NF compared with MF and BF in the weight absorption phase (P < .001 for both). Statistical parametric mapping analysis indicated a significantly greater knee angle in the sagittal plane at the end of the propulsive phase in BF compared with NF and MF (P = .043). Knee joint moment was significantly greater in the propulsive phase for the sagittal (P = .038) and frontal planes (P = .035) in BF compared with NF and MF and in the absorption phase in the sagittal plane (P = .034) in BF compared with MF and NF. A significant main effect of footwear was found for anteroposterior (propulsion, ↑MF, NF, ↓BF [P = .008]; absorption, ↑BF, MF, ↓NF [P = .001]), mediolateral (propulsion, ↑MF, NF, ↓BF [P = .005]; absorption, ↑NF, MF, ↓BF [P = .044]), and vertical (propulsion, ↑NF, BF, ↓MF [P = .001]; absorption, ↑MF, BF, ↓NF [P < .001]) ground-reaction forces. Knee power showed a significant main effect of footwear (absorption, ↑NF, MF, ↓BF [P = .015]; propulsion, ↑MF, NF, ↓BF [P = .039]). CONCLUSION Walking in MF without sufficient accommodation affected kinetic and kinematic parameters and could increase the risk of early development of knee OA.
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Affiliation(s)
- Jan Malus
- Human Motion Diagnostic Center, Department of Human Movement Studies, University of Ostrava, Ostrava, Czech Republic
| | - Jan Urbaczka
- Human Motion Diagnostic Center, Department of Human Movement Studies, University of Ostrava, Ostrava, Czech Republic
| | - Marketa Rygelova
- Human Motion Diagnostic Center, Department of Human Movement Studies, University of Ostrava, Ostrava, Czech Republic
| | - Victor Casula
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Miika Nieminen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Andrea Monte
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Veronika Horka
- Human Motion Diagnostic Center, Department of Human Movement Studies, University of Ostrava, Ostrava, Czech Republic
| | - Jaroslav Uchytil
- Human Motion Diagnostic Center, Department of Human Movement Studies, University of Ostrava, Ostrava, Czech Republic
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18
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Wang Y, Zhang Y, Li Y, Ma L, Niu Z. Partitioning behavior and mechanism of polyhalogenated carbazoles in water and suspended particulate matter. Sci Total Environ 2023:164590. [PMID: 37271385 DOI: 10.1016/j.scitotenv.2023.164590] [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: 03/07/2023] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/06/2023]
Abstract
Polyhalogenated carbazoles (PHCZs), known as new dioxin-like compounds, are a new class of emerging environmental contaminants that have received increasing attention in recent years due to their wide distribution and dioxin-like toxicity. This study investigated the partition characteristics and adsorption mechanisms of eight PHCZs in the aqueous phase and suspended particulate matter (SPM). The competitive impact of humic acid (HA) on the adsorption of PHCZs was revealed when the effects of various environmental conditions (HA, temperature, perturbation disturbance, and pH) behavior were explored. The key finding of this study is that SPM, which is its effective vector, could adsorb 70.7 % of ΣPHCZs. The equilibrium adsorption amount is ranked as 3,6-ICZ > 3,6-BCZ > 2,7-BCZ > 3,6-CCZ > 1,3,6,8-BCZ > 3-BCZ > 2-BCZ > CZ. The halogen species, the degree of halogenation, and the substitution position of the PHCZs influence the amount of adsorption, where the log Kow values, the steric effect (Es), and the density contribute the most to the amount of adsorption, and the specific adsorption mechanisms are van der Waals force, π-π, hydrogen bonding, and nonspecific hydrophobic interactions. The adsorption reaction of PHCZs by SPM is endothermic, and the amount of adsorption increases with increasing temperature, oscillation velocity, and decrease in pH. HA may reduce the adsorption sites of hydroxyl, carbonyl, amide groups, and π-π bonds on SPM for PHCZs, while the SPM@HA conjugates can provide new sites for the adsorption of PHCZs. According to the experimental findings of this study, SPM plays a significant role in contaminant transport. As a result, when conducting environmental investigations of PHCZs and even other hydrophobic contaminants, we must fully consider the level of contaminants present in SPM to reveal the ecological risks accurately.
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Affiliation(s)
- Yuqi Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Ying Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Yuna Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Luyao Ma
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Zhiguang Niu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; The International Joint Institute of Tianjin University, Fuzhou 350207, China
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Murtomäki K, Joutsa J, Mertsalmi T, Jaakkola E, Mäkinen E, Levo R, Eklund M, Nuuttila S, Pekkonen E, Noponen T, Ihalainen T, Kaasinen V, Scheperjans F. Dopamine transporter binding in the brain is linked to irritable bowel syndrome in Parkinson's disease. Brain Behav 2023:e3097. [PMID: 37254594 DOI: 10.1002/brb3.3097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/17/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Gastrointestinal symptoms are common in Parkinson's disease (PD), but their neurophysiological correlates are not well understood. We recently reported that functional gastrointestinal symptoms were not associated with asymmetry per se but might be associated with lower left striatal dopamine transporter (DAT) binding. The purpose of this study was to further investigate if specific gastrointestinal symptoms associate with monoamine transporter changes in specific striatal or extrastriatal areas. METHODS Ninety PD patients, who underwent DAT ¹2 3 I-FP-CIT SPECT imaging, were assessed using the MDS-Unified Parkinson's Disease Rating Scale part III, Rome III, and Wexner constipation score. DAT binding was calculated from striatal subregions using region-to-occipital cortex ratio. Voxel-wise analysis was used to assess the relationship between gastrointestinal symptoms and striatal DAT and extrastriatal serotonin transporter (SERT) binding. RESULTS Irritable bowel syndrome (IBS) criteria were fulfilled in 17 patients and were linked to higher ¹2 3 I-FP-CIT binding in the right posterior putamen and adjacent areas as compared to patients without IBS. No other significant associations between gastrointestinal symptoms and DAT or SERT binding were found. CONCLUSIONS These findings suggest that PD patients with IBS may have higher DAT binding in the right hemisphere. This finding implicates alterations of brain neurotransmitter physiology in the gastrointestinal symptoms of PD patients.
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Affiliation(s)
- Kirsi Murtomäki
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
- Clinicum, University of Helsinki, Helsinki, Finland
| | - Juho Joutsa
- Clinical Neurosciences, University of Turku, Turku, Finland
- Neurocenter, Turku University Hospital, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
- Turku Brain and Mind Center, University of Turku, Turku, Finland
| | - Tuomas Mertsalmi
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
- Clinicum, University of Helsinki, Helsinki, Finland
| | - Elina Jaakkola
- Clinical Neurosciences, University of Turku, Turku, Finland
- Neurocenter, Turku University Hospital, Turku, Finland
| | - Elina Mäkinen
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
- Clinicum, University of Helsinki, Helsinki, Finland
- Clinical Neurosciences, University of Turku, Turku, Finland
- Neurocenter, Turku University Hospital, Turku, Finland
| | - Reeta Levo
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
- Clinicum, University of Helsinki, Helsinki, Finland
| | - Mikael Eklund
- Clinical Neurosciences, University of Turku, Turku, Finland
- Neurocenter, Turku University Hospital, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
- Turku Brain and Mind Center, University of Turku, Turku, Finland
| | - Simo Nuuttila
- Clinical Neurosciences, University of Turku, Turku, Finland
- Neurocenter, Turku University Hospital, Turku, Finland
| | - Eero Pekkonen
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
- Clinicum, University of Helsinki, Helsinki, Finland
| | - Tommi Noponen
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
- Department of Medical Physics, Turku University Hospital, Turku, Finland
| | - Toni Ihalainen
- Clinical Physiology and Nuclear Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Valtteri Kaasinen
- Clinical Neurosciences, University of Turku, Turku, Finland
- Neurocenter, Turku University Hospital, Turku, Finland
| | - Filip Scheperjans
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
- Clinicum, University of Helsinki, Helsinki, Finland
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20
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Cicarello NDS, Bohrer RCD, Devetak GF, Rodacki ALF, Loureiro APC, Manffra EF. Control of center of mass during gait of stroke patients: Statistical parametric mapping analysis. Clin Biomech (Bristol, Avon) 2023; 107:106005. [PMID: 37302301 DOI: 10.1016/j.clinbiomech.2023.106005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/14/2023] [Accepted: 05/17/2023] [Indexed: 06/13/2023]
Abstract
BACKGROUND The control of the center of mass is essential for a stable and efficient gait. Post-stroke patients present several impairments, which may compromise the control of the center of mass during gait in the sagittal and frontal planes. This study aimed to identify changes in the vertical and mediolateral behavior of the center of mass during the single stance phase of post-stroke patients using the statistical parametric mapping analysis. It also aimed to identify alterations in the center of mass trajectories regarding the motor recovery stages. METHODS Seventeen stroke patients and 11 neurologically intact individuals were analyzed. The statistical parametric mapping approach was used to identify changes in the center of mass trajectories between stroke and healthy groups. The trajectories of the center of mass of post-stroke individuals were compared according to their motor recovery status. FINDINGS A near-flat vertical trajectory of the center of mass was indenfitifed in the stroke group compared to their healthy counterparts, especially on the paretic side. The center of mass trajectories in both directions (vertical and mediolateral) presented substantial alteration at the end of the single stance phase in the stroke group. The trajectory of the center of mass of the stroke group was symmetrical in the mediolateral direction between the sides. The trajectories of the center of mass presented similar pattern irrespective of the motor recovery status. INTERPRETATION The statistical parametric mapping approach showed to be suitable for determining gait changes in post-stroke individuals, irrespective of their motor recovery stage.
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Affiliation(s)
| | | | - Gisele F Devetak
- Pontifícia Universidade Católica do Paraná, Health Technology Graduate Program, Rua Imaculada Conceição, 1155, Curitiba, Brazil; Complexo Hospital de Clínicas da Universidade Federal do Paraná, filial da Empresa Brasileira de Serviços Hospitalares (CHC-UFPR/Ebserh), Curitiba, Brazil
| | | | - Ana Paula Cunha Loureiro
- Pontifícia Universidade Católica do Paraná, Department of Physical Therapy, School of Medicine and Life Sciences, Rua Imaculada Conceição, 1155, Curitiba, Brazil.
| | - Elisangela Ferretti Manffra
- Pontifícia Universidade Católica do Paraná, Health Technology Graduate Program, Rua Imaculada Conceição, 1155, Curitiba, Brazil
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21
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Rocha MJ, Rocha E. Chemical monitoring and risk assessment of 56 pesticides in the Ave River and adjoining Atlantic coastline (Iberian Peninsula, Portugal). Mar Pollut Bull 2023; 190:114844. [PMID: 37015172 DOI: 10.1016/j.marpolbul.2023.114844] [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: 01/08/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
The Ave basin (North Atlantic Ocean Ecoregion) is highly disturbed by anthropogenic activities. The amounts and distribution patterns of 56 priority pesticides (fungicides, herbicides, and insecticides) dissolved in the aqueous phase (DAP) and suspended particle matter (SPM) were evaluated seasonally along the river, estuary and coastline. Over 83 % of the GC-MS/MS-identified pesticides were quantified in DAP and 91 % in SPM. Pesticides' average annual amounts were ≅316 ng/L and 1.3 μg/g (fungicides), ≅272 ng/L and 2.2 μg/g (herbicides) and ≅1344 ng/L and 6.6 μg/g (insecticides). Invertebrates were the most vulnerable trophic level in the theoretical assessment of pesticide mixture hazards. This hypothesis was strengthened by acute in vivo assays using Artemia salina and Daphnia magna. These data, and the fact that 38 % of pesticides showed concentrations above the maximum established by the European legislation, plus the high concentrations of nitrates, nitrites, ammonia and phosphates, request further depollution actions in this region.
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Affiliation(s)
- Maria João Rocha
- Department of Microscopy, ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal; Team of Histomorphology, Pathophysiology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Portugal.
| | - Eduardo Rocha
- Department of Microscopy, ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal; Team of Histomorphology, Pathophysiology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Portugal
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22
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Li D, Yang T, Zhou R, Zhu Z, An S. Assessment and sources of heavy metals in the suspended particulate matter, sediments and water of a karst lake in Guizhou Province, China. Mar Pollut Bull 2023; 189:114636. [PMID: 36827770 DOI: 10.1016/j.marpolbul.2023.114636] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/01/2022] [Revised: 12/22/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
An integrated assessment of heavy metal (HM) contamination in dissolved matter, suspended particular matter (SPM) and sediments in lakes is essential. This study assessed the risks of HMs in the water, SPM and sediment of Caohai, China, and analyzed the changes in sediment HM contamination in conjunction with historical data. The HM transport was dominated by the SPM load, and the concentrations of Zn (179.07-1821.24 mg kg-1), Pb (53.63-181.46 mg kg-1), and Cd (3.68-21.31 mg kg-1) in SPM and sediment were 5.34-149.11 times higher than the upper continental crust (UCC) values. SPM and sediments were lightly to extremely polluted and had moderate to very high toxicity risks with Cd, Pb and Zn, and these three HMs originated from industrial and agricultural sources. The concentrations of Zn, Pb, and Cd in Caohai sediments increased by 36.7-187.9 % in 2022 compared to pre-2020. This research provides valuable reference data for the remediation of polluted karst lakes.
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Affiliation(s)
- Dianpeng Li
- School of Life Sciences, Nanjing University, Nanjing 210046, Jiangsu, China
| | - Tangwu Yang
- School of Life Sciences, Nanjing University, Nanjing 210046, Jiangsu, China; Nanjing University Ecological Research Institute of Changshu, Suzhou 215500, Jiangsu, China
| | - Rixiu Zhou
- School of Life Sciences, Nanjing University, Nanjing 210046, Jiangsu, China
| | - Zhengjie Zhu
- School of Life Sciences, Nanjing University, Nanjing 210046, Jiangsu, China; Nanjing University Ecological Research Institute of Changshu, Suzhou 215500, Jiangsu, China
| | - Shuqing An
- School of Life Sciences, Nanjing University, Nanjing 210046, Jiangsu, China; Nanjing University Ecological Research Institute of Changshu, Suzhou 215500, Jiangsu, China.
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23
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Bouhadoun A, Manikpurage HD, Deschildre C, Zalghout S, Dubourdeau M, Urbach V, Ho-Tin-Noe B, Deschamps L, Michel JB, Longrois D, Norel X. DHA, RvD1, RvD5, and MaR1 reduce human coronary arteries contractions induced by PGE 2. Prostaglandins Other Lipid Mediat 2023; 165:106700. [PMID: 36528331 DOI: 10.1016/j.prostaglandins.2022.106700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/29/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
In patients with coronary artery disease (CAD), plasma levels of pro-inflammatory lipid mediators such as PGE2 and TxA2 are increased. They could increase vascular contraction while EPA and DHA could reduce it. Studies have been mostly conducted on animal vessels. Therefore, the aim of the study was to investigate if EPA, DHA, and DHA-derived metabolites: RvD1, RvD5 and MaR1 can modulate contraction of human coronary arteries (HCA) induced by PGE2 or TxA2 stable analogue (U46619). DHA and EPA relaxed HCA pre-contracted with PGE2. 18 h-incubation with DHA but not EPA reduced the PGE2-induced contractions. Pre-incubation with RvD1, RvD5 and MaR1 reduced the PGE2-induced contractions. Indomethacin did not significantly modify the PGE2 responses. L-NOARG (inhibitor of nitric oxide synthase), reduced only the PGE2-induced contractions in RvD1-treated rings. Finally, FPR2/ALX, GPR32 and LGR6 receptors are detected in HCA by immunofluorescence. Our results indicate that DHA and its metabolites could be beneficial for HCA blood flow and could be a therapeutic perspective for patients with CAD.
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Affiliation(s)
- Amel Bouhadoun
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Hasanga D Manikpurage
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France; Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada
| | - Catherine Deschildre
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Sara Zalghout
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | | | | | - Benoît Ho-Tin-Noe
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Lydia Deschamps
- Hôpital Bichat-Claude Bernard, Assistance Publique-Hôpitaux de Paris, Université Paris Cité Paris, France
| | - Jean-Baptiste Michel
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Dan Longrois
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France; Hôpital Bichat-Claude Bernard, Assistance Publique-Hôpitaux de Paris, Université Paris Cité Paris, France
| | - Xavier Norel
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France.
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24
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Martindale RG. Novel nutrition strategies to enhance recovery after surgery. JPEN J Parenter Enteral Nutr 2023; 47:476-481. [PMID: 36938940 DOI: 10.1002/jpen.2485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 01/20/2023] [Accepted: 02/08/2023] [Indexed: 03/21/2023]
Abstract
Surgery and traumatic injury set off a cascade of metabolic changes that are becoming better understood. Recently, strategies and protocols have been developed for optimizing outcomes, and this has yielded beneficial results. This brief review evaluates three specific nutrition or metabolic interventions in the postoperative setting that attempt to optimize outcomes. We limited this to three subspecialty areas including oncologic surgery, orthopedic surgery, and cardiac surgery. These agents included fish oils, factors to prevent dysbiosis, and resistance exercise and its role in enhancing protein update. Where these novel agents fit into the basic tenets of postoperative nutrition interventions does not change the narrative: deliver graduated early enteral feeding to attenuate the metabolic response to surgical stress, maintain the gastrointestinal mucosal barrier, use immune/metabolic modulation to enhance immune response while attenuating excessive inflammation, and support the microbiome.
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Affiliation(s)
- Robert G Martindale
- Department of Surgery, Oregon Health and Science University, Portland, Oregon, USA
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25
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Kahnt AS, Schebb NH, Steinhilber D. Formation of lipoxins and resolvins in human leukocytes. Prostaglandins Other Lipid Mediat 2023; 166:106726. [PMID: 36878381 DOI: 10.1016/j.prostaglandins.2023.106726] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 02/22/2023] [Accepted: 03/03/2023] [Indexed: 03/07/2023]
Abstract
Specialized pro-resolving lipid mediators (SPMs) such as lipoxins or resolvins are formed by the consecutive action of 5-lipoxygenase (5-LO, ALOX5) and different types of arachidonic acid 12- or 15-lipoxygenases using arachidonic acid, eicosapentaenoic acid or docosahexaenoic acid as substrate. Lipoxins are trihydroxylated oxylipins which are formed from arachidonic and eicosapentaenoic acid. The latter can also be converted to di- and trihydroxylated resolvins of the E series, whereas docosahexaenoic acid is the substrate for the formation of di- and trihydroxylated resolvins of the D series. Here, we summarize the formation of lipoxins and resolvins in leukocytes. From the data published so far, it becomes evident that FLAP is required for the biosynthesis of most of the lipoxins and resolvins. Even in the presence of FLAP, formation of the trihydroxylated SPMs (lipoxins, RvD1-RvD4, RvE1) in leukocytes is very low or undetectable which is obviously due to the extremely low epoxide formation by 5-LO from oxylipins such as 15-H(p)ETE, 18-H(p)EPE or 17-H(p)DHA. As a result, only the dihydroxylated oxylipins (5 S,15S-diHETE, 5 S,15S-diHEPE) and resolvins (RvD5, RvE2, RvE4) can be consistently detected using leukocytes as SPM source. However, the reported levels of these dihydroxylated lipid mediators are still much lower than those of the typical pro-inflammatory mediators including the monohydroxylated fatty acid derivatives (e.g. 5-HETE), leukotrienes or cyclooxygenase-derived prostaglandins. Since 5-LO expression is mainly restricted to leukocytes these cells are considered as the main source of SPMs. The low formation of trihydroxylated SPMs in leukocytes, the fact that they are hardly detected in biological samples as well as the lack of functional signaling by their receptors make it highly questionable that trihydroxylated SPMs play a role as endogenous mediators in the resolution of inflammation.
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Affiliation(s)
- Astrid S Kahnt
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany.
| | - Nils Helge Schebb
- Chair of Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany; Fraunhofer Institute for Translational Medicine and Pharmacology, ITMP and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, CIMD, 60590 Frankfurt am Main, Germany.
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26
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Thorsen T, Wen C, Porter J, Reinbolt J, Weinhandl JT, Zhang S. Tibiofemoral compressive force during downhill walking in patients with primary total knee arthroplasty: A statistical parametric mapping approach. Clin Biomech (Bristol, Avon) 2023; 102:105900. [PMID: 36739666 DOI: 10.1016/j.clinbiomech.2023.105900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 01/09/2023] [Accepted: 01/26/2023] [Indexed: 02/07/2023]
Abstract
BACKGROUND Downhill walking is a necessary part of daily life and an effective activity in post-operative rehabilitation following total knee arthroplasty. The purpose of this study was to determine differences in the behavior of total, medial, and lateral tibiofemoral compressive forces as well as knee extensor and flexor muscle forces between different limbs of patients with total knee arthroplasty (replaced, non-replaced) during downhill and level walking. METHODS Musculoskeletal modeling and simulation were implemented to determine muscle forces and tibiofemoral compressive forces in 25 patients with total knee arthroplasty. A 2 × 2 [Limb (replaced, non-replaced) × Slope (0°, 10°)] Statistical parametric mapping repeated measures analysis of variance was conducted on selected variables. FINDINGS Statistical parametric mapping did not identify any between-limb differences for compressive or muscle forces. Differences in joint compressive and muscle forces persisted throughout different intervals of stance-phase between level and downhill walking. Knee extensor muscle forces were distinctly greater during level walking for nearly all of stance phase. Knee flexor muscle force was greater during downhill walking for >60% of stance. Statistical parametric mapping did identify regions of significance between level and downhill walking that coincided temporally (near loading response and push off) with peak joint moment and joint compressive forces traditionally reported using discrete variable analyses. INTERPRETATION Downhill walking may be a safe and useful rehabilitation tool for post-knee arthroplasty rehabilitation that will not disproportionally load either the replaced or the non-replaced joint and where the quadriceps muscles can be strengthened during a gait-specific task.
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Affiliation(s)
- Tanner Thorsen
- School of Kinesiology and Nutrition, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - Chen Wen
- Department of Kinesiology, Recreation and Sport Studies, The University of Tennessee, Knoxville, TN, USA
| | - Jared Porter
- Department of Kinesiology, Recreation and Sport Studies, The University of Tennessee, Knoxville, TN, USA
| | - Jeffery Reinbolt
- Department of Mechanical, Aerospace, and Biomedical Engineering, The University of Tennessee, Knoxville, TN, USA
| | - Joshua T Weinhandl
- Department of Kinesiology, Recreation and Sport Studies, The University of Tennessee, Knoxville, TN, USA
| | - Songning Zhang
- Department of Kinesiology, Recreation and Sport Studies, The University of Tennessee, Knoxville, TN, USA.
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27
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Brown T, Blowey PJ, Henry J, Sweetman A. Intramolecular Force Mapping at Room Temperature. ACS Nano 2023; 17:1298-1304. [PMID: 36603104 PMCID: PMC9878970 DOI: 10.1021/acsnano.2c09463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Acquisition of dense, three-dimensional, force fields with intramolecular resolution via noncontact atomic force microscopy (NC-AFM) has yielded enormous progress in our ability to characterize molecular and two-dimensional materials at the atomic scale. To date, intramolecular force mapping has been performed exclusively at cryogenic temperatures, due to the stability afforded by low temperature operation, and as the carbon monoxide functionalization of the metallic scanning probe tip, normally required for submolecular resolution, is only stable at low temperature. In this paper we show that high-resolution, three-dimensional force mapping of a single organic molecule is possible even at room temperature. The physical limitations of room temperature operation are overcome using semiconducting materials to inhibit molecular diffusion and create robust tip apexes, while challenges due to thermal drift are overcome with atom tracking based feedforward correction. Three-dimensional force maps comparable in spatial and force resolution to those acquired at low temperature are demonstrated, permitting a quantitative analysis of the adsorption induced changes in the geometry of the molecule at the picometer level.
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Affiliation(s)
- Timothy Brown
- The School of Physics and Astronomy,
Bragg Centre for Materials Research, The
University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Philip James Blowey
- The School of Physics and Astronomy,
Bragg Centre for Materials Research, The
University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Jack Henry
- The School of Physics and Astronomy,
Bragg Centre for Materials Research, The
University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Adam Sweetman
- The School of Physics and Astronomy,
Bragg Centre for Materials Research, The
University of Leeds, Leeds LS2 9JT, United Kingdom
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28
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Yang WS, Wang JL, Wu W, Wang GF, Yan J, Liu Q, Wu XY, Zhou QT, Yang DH, Wang MW, Li ZP. Formyl peptide receptor 2 as a potential therapeutic target for inflammatory bowel disease. Acta Pharmacol Sin 2023; 44:19-31. [PMID: 35840658 DOI: 10.1038/s41401-022-00944-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/15/2022] [Indexed: 01/18/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a global health burden whose existing treatment is largely dependent on anti-inflammatory agents. Despite showing some therapeutic actions, their clinical efficacy and adverse events are unacceptable. Resolution as an active and orchestrated phase of inflammation involves improper inflammatory response with three key triggers, specialized pro-resolving mediators (SPMs), neutrophils and phagocyte efferocytosis. The formyl peptide receptor 2 (FPR2/ALX) is a human G protein-coupled receptor capable of binding SPMs and participates in the resolution process. This receptor has been implicated in several inflammatory diseases and its association with mouse model of IBD was established in some resolution-related studies. Here, we give an overview of three reported FPR2/ALX agonists highlighting their respective roles in pro-resolving strategies.
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29
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Mázló A, Tang Y, Jenei V, Brauman J, Yousef H, Bácsi A, Koncz G. Resolution Potential of Necrotic Cell Death Pathways. Int J Mol Sci 2022; 24. [PMID: 36613458 DOI: 10.3390/ijms24010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
During tissue damage caused by infection or sterile inflammation, not only damage-associated molecular patterns (DAMPs), but also resolution-associated molecular patterns (RAMPs) can be activated. These dying cell-associated factors stimulate immune cells localized in the tissue environment and induce the production of inflammatory mediators or specialized proresolving mediators (SPMs). Within the current prospect of science, apoptotic cell death is considered the main initiator of resolution. However, more RAMPs are likely to be released during necrotic cell death than during apoptosis, similar to what has been observed for DAMPs. The inflammatory potential of many regulated forms of necrotic cell death modalities, such as pyroptosis, necroptosis, ferroptosis, netosis, and parthanatos, have been widely studied in necroinflammation, but their possible role in resolution is less considered. In this review, we aim to summarize the relationship between necrotic cell death and resolution, as well as present the current available data regarding the involvement of certain forms of regulated necrotic cell death in necroresolution.
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30
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Paul A, K S V, Sood A, Bhaumik S, Singh KA, Sethupathi S, Chanda A. Suspended Particulate Matter Analysis of Pre and During Covid Lockdown Using Google Earth Engine Cloud Computing: A Case Study of Ukai Reservoir. Bull Environ Contam Toxicol 2022; 110:7. [PMID: 36512073 PMCID: PMC9745272 DOI: 10.1007/s00128-022-03638-9] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
Presence of suspended particulate matter (SPM) in a waterbody or a river can be caused by multiple parameters such as other pollutants by the discharge of poorly maintained sewage, siltation, sedimentation, flood and even bacteria. In this study, remote sensing techniques were used to understand the effects of pandemic-induced lockdown on the SPM concentration in the lower Tapi reservoir or Ukai reservoir. The estimation was done using Landsat-8 OLI (Operational Land Imager) having radiometric resolution (12-bit) and a spatial resolution of 30 m. The Google Earth Engine (GEE) cloud computing platform was used in this study to generate the products. The GEE is a semi-automated workflow system using a robust approach designed for scientific analysis and visualization of geospatial datasets. An algorithm was deployed, and a time-series (2013-2020) analysis was done for the study area. It was found that the average mean value of SPM in Tapi River during 2020 is lowest than the last seven years at the same time.
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Affiliation(s)
- Arnab Paul
- Indian Institute of Remote Sensing (IIRS), ISRO, 248001, Dehradun, Uttarakhand, India
| | - Vignesh K S
- School of Public Health, SRMIST, 603203, Chennai, Tamil Nadu, India.
| | - Atisha Sood
- School of Public Health, SRMIST, 603203, Chennai, Tamil Nadu, India
| | - Swastika Bhaumik
- Indian Institute of Technology (IIT), 721302, Kharagpur, West Bengal, India
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31
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Ding S, Jiao L, He J, Li L, Liu W, Liu Y, Zhu Y, Zheng J. Biogeochemical dynamics of particulate organic phosphorus and its potential environmental implication in a typical "algae-type" eutrophic lake. Environ Pollut 2022; 314:120240. [PMID: 36152715 DOI: 10.1016/j.envpol.2022.120240] [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: 04/30/2022] [Revised: 09/12/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Organic phosphorus (Po) plays a very important role in the process of lake eutrophication, but there is still a lack of knowledge about the internal cycle of Po in suspended particulate matter (SPM) dominated by algal debris. In this study, the characterization of bioavailable Po by sequential extraction and enzymatic hydrolysis showed that 45% of extracted TP was Po in SPM of Lake Dianchi, and 43-98% of total Po in H2O, NaHCO3 and NaOH fractions was enzymatically hydrolyzable Po (EHP, H2O-EHP: 31-53%). Importantly, labile monoester P was the main organic form (68%) of EHP, and its potential bioavailability was higher than that of diester P and phytate-like P. According to the estimation of P pools in SPM of the whole lake, the total load of Pi plus EHP in the H2O extract of SPM was 74.9 t and had great potential risk to enhance eutrophication in the lake water environment. Accordingly, reducing the amount of SPM in the water during the algal blooming period is likely to be a necessary measure that can successfully interfere with or block the continuous stress of unhealthy levels of P on the aquatic ecosystem.
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Affiliation(s)
- Shuai Ding
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Environmental Standard Institute, Ministry of Ecology and Environment of the People's Republic of China, Beijing, 100012, China
| | - Lixin Jiao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Institute of Water Environment Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Jia He
- Kunming Institute of Eco-Environmental Sciences, Kunming, 650032, China
| | - Lingping Li
- Shenzhen Green Creating Promotion Center of Living Environment, Shenzhen, 518040, China
| | - Wenbin Liu
- Ecological Engineering Company Limited of CCCC First Harbor Engineering Co., Ltd., Shenzhen, 518107, China
| | - Yan Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Environmental Standard Institute, Ministry of Ecology and Environment of the People's Republic of China, Beijing, 100012, China
| | - Yuanrong Zhu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Jinlong Zheng
- Kunming Institute of Eco-Environmental Sciences, Kunming, 650032, China
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Patrignani P, Brüne B, Steinhilber D. Editorial: Resolution of inflammation: Mechanisms, mediators and biomarkers: Volume II. Front Pharmacol 2022; 13:1100420. [PMID: 36506531 PMCID: PMC9731129 DOI: 10.3389/fphar.2022.1100420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022] Open
Affiliation(s)
- Paola Patrignani
- Department of Neuroscience, Imaging and Clinical Science, School of Medicine and CAST, G d’Annunzio University, Chieti, Italy,*Correspondence: Paola Patrignani, ; Bernhard Brüne, ; Dieter Steinhilber,
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe University, Frankfurt, Germany,Fraunhofer Institute for Translational Medicine and Pharmacology, ITMP and Fraunhofer Cluster of Excellence for Immune Mediated diseases, CIMD, Frankfurt, Germany,*Correspondence: Paola Patrignani, ; Bernhard Brüne, ; Dieter Steinhilber,
| | - Dieter Steinhilber
- Fraunhofer Institute for Translational Medicine and Pharmacology, ITMP and Fraunhofer Cluster of Excellence for Immune Mediated diseases, CIMD, Frankfurt, Germany,Institute of Pharmaceutical Chemistry, Goethe University, Frankfurt, Germany,*Correspondence: Paola Patrignani, ; Bernhard Brüne, ; Dieter Steinhilber,
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Duan Z, Tan X, Ali I, Wu X, Cao J, Xu Y, Shi L, Gao W, Ruan Y, Chen C. Comparison of organic matter (OM) pools in water, suspended particulate matter, and sediments in eutrophic Lake Taihu, China: Implication for dissolved OM tracking, assessment, and management. Sci Total Environ 2022; 845:157257. [PMID: 35817111 DOI: 10.1016/j.scitotenv.2022.157257] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/13/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Suspended particulate matter (SPM) and sediments are important sources of dissolved organic matter (DOM) in lake water. However, studies on what extent and how both sources affect DOM composition are lacking, which hampers DOM management. Herein, DOM, SPM-extracted particulate organic matter (POM), and sediment-extracted organic matter (SOM) were characterized and compared in terms of absorption spectral properties and chemical composition in Lake Taihu, a large cyanobacterial bloom-affected shallow lake. A statistical method was proposed to quantify the similarity of organic matter (OM) in the different states and to evaluate the potential effects of SPM and sediments on DOM. Results showed that POM and DOM were mainly composed of small-molecular-size and low-humified organic components (i.e., 27 %-38 % tryptophan-like and ~30 % protein-like substances), and most of them were derived from autochthonous sources. While tyrosine-like (57 %) and humic-like (27 %) substances were dominant in SOM. The OM similarity between POM and DOM was approximately 1.5 times higher than that between SOM and DOM, indicating the greater effect of SPM than sediments on DOM composition. High pH and low nitrogen (e.g., nitrate and ammonia) were positively correlated to the OM similarity between POM and DOM. Further, the findings indicated that nitrogen limitation enhanced the OM exchange between POM and DOM by promoting the production of extracellular polymeric substances (EPS) in cyanobacterial aggregates. The obtained findings highlighted the importance of SPM in shaping the DOM composition relative to sediments and facilitating the DOM management in bloom-affected lakes.
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Affiliation(s)
- Zhipeng Duan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu 210024, China; College of Hydrology and Water Resources, Hohai University, Nanjing, Jiangsu 210024, China
| | - Xiao Tan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu 210024, China.
| | - Imran Ali
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu 210024, China
| | - Xiaoge Wu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Jun Cao
- National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, Jiangsu 210024, China
| | - Yangxue Xu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu 210024, China
| | - Lin Shi
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu 210024, China
| | - Wanpeng Gao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu 210024, China
| | - Yinlan Ruan
- Institute for Photonics and Advanced Sensing, The University of Adelaide, SA 5005, Australia
| | - Chen Chen
- College of Dayu, Hohai University, Nanjing, Jiangsu 210024, China
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Lourenço BM, Magalhães FA, Vieira FM, Reis CK, Costa HS, Araújo VL, Richards J, Trede R. An exploration of the effects of prefabricated and customized insoles on lower limb kinetics and kinematics during walking, stepping up and down tasks: A time series analysis. Gait Posture 2022; 98:297-304. [PMID: 36257239 DOI: 10.1016/j.gaitpost.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 07/29/2022] [Accepted: 10/06/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Prefabricated and customized insoles are used in clinical practice to reduce foot pronation. Although data exist on the effects at key points within the stance phase, exploring the impact of different insoles using time series analysis may reveal more detail about their efficacy. RESEARCH QUESTION What are the effects revealed by a time series analysis of arch-supported prefabricated insoles (PREFABRICATED) versus arch-supported prefabricated insoles customized with a 6º medial wedge (CUSTOMIZED) on the lower limb biomechanics during walking, stepping up and down tasks in individuals with pronated feet? METHODS Nineteen individuals with excessive foot pronation performed walking, stepping up and down tasks using three insoles: CONTROL (flat insole), CUSTOMIZED, and PREFABRICATED. Angles and moments of ankle and knee coronal and hip transverse planes were compared between conditions using statistical parametric mapping (SPM). RESULTS For walking, CUSTOMIZED reduced ankle eversion moment compared to CONTROL during midstance and PREFABRICATED during propulsion. CUSTOMIZED decreased KAM during midstance and propulsion compared to PREFABRICATED. Compared to CONTROL, CUSTOMIZED and PREFABRICATED reduced hip internal rotation during propulsion and loading response, respectively. CUSTOMIZED decreased eversion movement during midstance and propulsion for the stepping up task. PREFABRICATED reduced eversion movement during midstance in comparison to CONTROL. For the stepping down task, CUSTOMIZED increased eversion movement during propulsion compared to PREFABRICATED. CUSTOMIZED reduced hip internal rotation angle for stepping up task during propulsion, decreased medial rotation movement during midstance compared to CONTROL, and reduced medial rotation during midstance compared to PREFABRICATED. CUSTOMIZED increased KAM for stepping up and down tasks during propulsion. SIGNIFICANCE These findings suggest that both CUSTOMIZED and PREFABRICATED reduce foot pronation. However, non-local effects, such as changes in KAM and hip internal rotation, were seen only in the CUSTOMIZED. Therefore, CUSTOMIZED may be preferable if the objective is to modify the knee and hip mechanics.
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Bertozzi F, Rabello R, Zago M, Esposito F, Sforza C. Foot dominance and ball approach angle affect whole-body instep kick kinematics in soccer players. Sports Biomech 2022:1-21. [PMID: 35993147 DOI: 10.1080/14763141.2022.2110514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/02/2022] [Indexed: 10/15/2022]
Abstract
Past investigations provided limited information regarding instep kicking kinematics in soccer. It is unclear how foot dominance and ball approach angle impact whole-body kinematics and consequently the ball velocity. We aimed to analyse the effects of the ball approach angle and the foot used on the whole-body kinematics of soccer players performing an instep kick. Twenty-four soccer players performed maximal instep kicks, using the dominant and non-dominant feet, with the ball stationary or rolling from four different directions. Whole-body motion was recorded during the kicking action and kinematic time-series were extracted and resampled to 200 points equally divided into kicking and follow-through phases. 1-D statistical parametric mapping two-way ANOVA tested for the effect of ball condition and foot dominance. Ball approach angle affected most of the swinging and support limb variables and some upper body variables. Performance-related variables such as CoM, foot, and shank velocities were reduced when the ball approached posteriorly. The linear and angular velocities of the swinging limb, and CoM vertical position, were higher when kicking with dominant foot. Based on these findings, as a practical implication, coaches should vary ball approach angles and the foot used during kicking drills to improve technical effectiveness in various situations.
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Affiliation(s)
- Filippo Bertozzi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy
- E4Sport Lab, Politecnico di Milano, Milan, Italy
| | - Rodrigo Rabello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Matteo Zago
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Fabio Esposito
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Chiarella Sforza
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
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Viellehner J, Potthast W. The effect of vibration on kinematics and muscle activation during cycling. J Sports Sci 2022; 40:1760-1771. [PMID: 35984289 DOI: 10.1080/02640414.2022.2109841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Vibration has the potential to compromise performance in cycling. This study aimed to investigate the effects of vibration on full-body kinematics and muscle activation time series. Nineteen male amateur cyclists (mass 74.9 ± 5.9 kg, body height 1.82 ± 0.05 m, Vo2max 57 ± 9 ml/kg/min, age 27 ± 7 years) cycled (216 ± 16 W) with (Vib) and without (NoVib) vibration. Full-body kinematics and muscle activation time series were analysed. Vibration did not affect lower extremity joint kinematics significantly. The pelvic rotated with vibration towards the posterior direction (NoVib: 22.2 ± 4.8°, Vib: 23.1 ± 4.7°, p = 0.016, d = 0.20), upper body lean (NoVib: 157.8 ± 3.0°, Vib: 158.9 ± 3.4°, p = 0.001, d = 0.35) and elbow flexion (NoVib: 27.0 ± 8.2°, Vib: 29.4 ± 9.0°, p = 0.010, d = 0.28) increased significantly with vibration. The activation of lower extremity muscles (soleus, gastrocnemius lat., tibialis ant., vastus med., rectus fem., biceps fem.) increased significantly during varying phases of the crank cycle due to vibration. Vibration increased arm and shoulder muscle (triceps brachii, deltoideus pars scapularis) activation significantly over almost the entire crank cycle. The co-contraction of knee and ankle flexors and extensors (vastus med. - gastrocnemius lat., vastus med. - biceps fem., soleus - tibialis ant.) increased significantly with vibration. In conclusion vibrations influence main tasks such as propulsion and upper body stabilization on the bicycle to a different extent. The effect of vibration on the task of propulsion is limited due to unchanged lower body kinematics and only phase-specific increases of muscular activation during the crank cycle. Additional demands on upper body stabilization are indicated by adjusted upper body kinematics and increased muscle activation of the arm and shoulder muscles during major parts of the cranking cycle.
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Affiliation(s)
- Josef Viellehner
- German Sport University Cologne - Institute of Biomechanics and Orthopaedics.,German Sport University Cologne, Institute of Outdoor Sports and Environmental Science, Cologne, Germany
| | - Wolfgang Potthast
- German Sport University Cologne - Institute of Biomechanics and Orthopaedics
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Gourgoulis V, Nikodelis T. Comparison of the arm-stroke kinematics between maximal and sub-maximal breaststroke swimming using discrete data and time series analysis. J Biomech 2022; 142:111255. [PMID: 35973308 DOI: 10.1016/j.jbiomech.2022.111255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/02/2022] [Accepted: 08/07/2022] [Indexed: 11/16/2022]
Abstract
The aim of the current study was to compare the arm-stroke kinematics during maximal and sub-maximal breaststroke swimming using both discrete and continuous data analysis. Nine male breaststrokers swam 2 × 25 m with maximal and sub-maximal intensity and their full body 3-D kinematics were obtained using eight video cameras. The arm-stroke was divided into five phases: recovery, glide, out-sweep, in & down-sweep and in & up-sweep. The statistical treatment of selected discrete variables was conducted using t-test, while the analysis of their equivalent time series, when applicable, was conducted using Statistical Parametric Mapping. Sub-maximal trial, compared to maximal, presented lower swimming velocity, greater stroke length and less stroke rate. Moreover, the absolute and relative duration of the glide phase was longer, while the relative duration of all the other phases was shorter. The resultant hand velocity during the arm recovery was slower, as well as the hand velocity time series in the transverse and longitudinal axis which were slower from ∼ 45 % to ∼ 60 % and from ∼ 5 % to ∼ 15 % of the stroke cycle, respectively. Both discrete and continuous data analysis revealed that the main discriminating factor between the two conditions concerns to the adjustment of the glide and the recovery phase and consequently the continuation of the propulsive movements.
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Affiliation(s)
- Vassilios Gourgoulis
- Democritus University of Thrace, School of Physical Education and Sport Science, Department of Physical Education and Sport Science, Komotini, Greece.
| | - Thomas Nikodelis
- Aristotle University of Thessaloniki, School of Physical Education and Sport Science, Department of Physical Education and Sports Sciences, Thessaloniki, Greece
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Silveira MC, Albano RM, Rocha-de-Souza CM, Leão RS, Marques EA, Picão RC, Kraychete GB, de Oliveira Santos IC, Oliveira TRTE, Tavares-Teixeira CB, Carvalho-Assef APD. Description of a novel IncP plasmid harboring bla KPC-2 recovered from a SPM-1-producing Pseudomonas aeruginosa from ST277. Infect Genet Evol 2022; 102:105302. [PMID: 35568335 DOI: 10.1016/j.meegid.2022.105302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 11/28/2022]
Abstract
The high rates of carbapenem resistance among Brazilian Pseudomonas aeruginosa isolates are mainly associated with the clone ST277 producing the carbapenemase SPM-1. Here, the complete genetic composition of a IncP plasmid harboring blaKPC-2 in isolates of this endemic clone carrying chromosomal blaSPM-1 was described using whole genome sequencing. These results confirm the association of these two carbapenemases in ST277 and also describe the genetic composition of a novel blaKPC-2-plasmid. Considering the fact that this association occurs in a high-risk clone, monitoring the dissemination of this plasmid should be a public health concern.
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Affiliation(s)
- Melise Chaves Silveira
- Laboratório de Pesquisa em Infecção Hospitalar (LAPIH), Instituto Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, Brazil
| | - Rodolpho Mattos Albano
- Departamento de Bioquímica, Instituto de Biologia Roberto de Alcântara Gomes, Universidade do Estado do Rio de Janeiro - UERJ, Rio de Janeiro, Brazil
| | | | - Robson Souza Leão
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro - UERJ, Rio de Janeiro, Brazil
| | - Elizabeth Andrade Marques
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro - UERJ, Rio de Janeiro, Brazil
| | - Renata Cristina Picão
- Laboratório de Investigação em Microbiologia Médica (LIMM), Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriela Bergiante Kraychete
- Laboratório de Investigação em Microbiologia Médica (LIMM), Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Yan D, Huang Y, Wang Z, Chen Q, Zhang J, Dong J, Fan Z, Yan H, Mao F. Key role of suspended particulate matter in assessing fate and risk of endocrine disrupting compounds in a complex river-lake system. J Hazard Mater 2022; 431:128543. [PMID: 35228078 DOI: 10.1016/j.jhazmat.2022.128543] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/11/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Endocrine-disrupting compounds (EDCs) enter lakes mainly through river inflow. However, the occurrence, transport and fate of EDCs in the overlying water, suspended particulate matter (SPM) and sediment of inflowing rivers remain unclear. This study investigated the load of seven EDCs in a complex river-lake system of the Taihu Lake Basin during different seasons, with the aims of revealing the transport routes of EDCs and identifying the contributions from different sources. The results indicated that the levels of the seven EDCs in the wet season with high temperature and dilution effects were generally lower than those in the other seasons. EDC enrichment in the sediment was largely affected by the transport and fate of SPM. Moreover, the estrogenic activity and risks of EDCs were the highest in SPM. The mass loadings of particulate EDCs carried by SPM were 2.6 times that of overlying water. SPM plays a vital role in the transport and fate of EDCs in complex river-lake systems and thereby deserves more attention. Nonpoint sources, particularly animal husbandry activities and untreated domestic sewage, were the main sources of EDCs, amounting to 61.5% of the total load.
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Affiliation(s)
- Dandan Yan
- Yangtze Institute for Conservation and Green Development, Hohai University, Nanjing 210098, China; Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Yu Huang
- Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Zhiyuan Wang
- Yangtze Institute for Conservation and Green Development, Hohai University, Nanjing 210098, China; Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Qiuwen Chen
- Yangtze Institute for Conservation and Green Development, Hohai University, Nanjing 210098, China; Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China.
| | - Jianyun Zhang
- Yangtze Institute for Conservation and Green Development, Hohai University, Nanjing 210098, China
| | - Jianwei Dong
- Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Zhaohang Fan
- Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Hanlu Yan
- Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Feijian Mao
- Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
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Smith NM, Ford JN, Haghdel A, Glodzik L, Li Y, D’Angelo D, RoyChoudhury A, Wang X, Blennow K, de Leon MJ, Ivanidze J. Statistical Parametric Mapping in Amyloid Positron Emission Tomography. Front Aging Neurosci 2022; 14:849932. [PMID: 35547630 PMCID: PMC9083453 DOI: 10.3389/fnagi.2022.849932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/21/2022] [Indexed: 12/03/2022] Open
Abstract
Alzheimer's disease (AD), the most common cause of dementia, has limited treatment options. Emerging disease modifying therapies are targeted at clearing amyloid-β (Aβ) aggregates and slowing the rate of amyloid deposition. However, amyloid burden is not routinely evaluated quantitatively for purposes of disease progression and treatment response assessment. Statistical Parametric Mapping (SPM) is a technique comparing single-subject Positron Emission Tomography (PET) to a healthy cohort that may improve quantification of amyloid burden and diagnostic performance. While primarily used in 2-[18F]-fluoro-2-deoxy-D-glucose (FDG)-PET, SPM's utility in amyloid PET for AD diagnosis is less established and uncertainty remains regarding optimal normal database construction. Using commercially available SPM software, we created a database of 34 non-APOE ε4 carriers with normal cognitive testing (MMSE > 25) and negative cerebrospinal fluid (CSF) AD biomarkers. We compared this database to 115 cognitively normal subjects with variable AD risk factors. We hypothesized that SPM based on our database would identify more positive scans in the test cohort than the qualitatively rated [11C]-PiB PET (QR-PiB), that SPM-based interpretation would correlate better with CSF Aβ42 levels than QR-PiB, and that regional z-scores of specific brain regions known to be involved early in AD would be predictive of CSF Aβ42 levels. Fisher's exact test and the kappa coefficient assessed the agreement between SPM, QR-PiB PET, and CSF biomarkers. Logistic regression determined if the regional z-scores predicted CSF Aβ42 levels. An optimal z-score cutoff was calculated using Youden's index. We found SPM identified more positive scans than QR-PiB PET (19.1 vs. 9.6%) and that SPM correlated more closely with CSF Aβ42 levels than QR-PiB PET (kappa 0.13 vs. 0.06) indicating that SPM may have higher sensitivity than standard QR-PiB PET images. Regional analysis demonstrated the z-scores of the precuneus, anterior cingulate and posterior cingulate were predictive of CSF Aβ42 levels [OR (95% CI) 2.4 (1.1, 5.1) p = 0.024; 1.8 (1.1, 2.8) p = 0.020; 1.6 (1.1, 2.5) p = 0.026]. This study demonstrates the utility of using SPM with a "true normal" database and suggests that SPM enhances diagnostic performance in AD in the clinical setting through its quantitative approach, which will be increasingly important with future disease-modifying therapies.
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Affiliation(s)
- Natasha M. Smith
- Department of Radiology and MD Program, Weill Cornell Medicine, New York City, NY, United States
| | - Jeremy N. Ford
- Department of Radiology, Weill Cornell Medicine, New York City, NY, United States
- Department of Radiology, Massachusetts General Hospital, Boston, MA, United States
| | - Arsalan Haghdel
- Department of Radiology and MD Program, Weill Cornell Medicine, New York City, NY, United States
| | - Lidia Glodzik
- Department of Radiology, Weill Cornell Medicine, New York City, NY, United States
| | - Yi Li
- Department of Radiology, Weill Cornell Medicine, New York City, NY, United States
| | - Debra D’Angelo
- Department of Population Health Sciences, Weill Cornell Medicine, New York City, NY, United States
| | - Arindam RoyChoudhury
- Department of Population Health Sciences, Weill Cornell Medicine, New York City, NY, United States
| | - Xiuyuan Wang
- Department of Radiology, Weill Cornell Medicine, New York City, NY, United States
| | - Kaj Blennow
- Department of Neuroscience and Physiology, University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Mony J. de Leon
- Department of Radiology, Weill Cornell Medicine, New York City, NY, United States
| | - Jana Ivanidze
- Department of Radiology, Weill Cornell Medicine, New York City, NY, United States
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Einspänner E, Jochimsen TH, Harries J, Melzer A, Unger M, Brown R, Thielemans K, Sabri O, Sattler B. Evaluating different methods of MR-based motion correction in simultaneous PET/MR using a head phantom moved by a robotic system. EJNMMI Phys 2022; 9:15. [PMID: 35239047 PMCID: PMC8894542 DOI: 10.1186/s40658-022-00442-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 02/10/2022] [Indexed: 11/23/2022] Open
Abstract
Background Due to comparatively long measurement times in simultaneous positron emission tomography and magnetic resonance (PET/MR) imaging, patient movement during the measurement can be challenging. This leads to artifacts which have a negative impact on the visual assessment and quantitative validity of the image data and, in the worst case, can lead to misinterpretations. Simultaneous PET/MR systems allow the MR-based registration of movements and enable correction of the PET data. To assess the effectiveness of motion correction methods, it is necessary to carry out measurements on phantoms that are moved in a reproducible way. This study explores the possibility of using such a phantom-based setup to evaluate motion correction strategies in PET/MR of the human head. Method An MR-compatible robotic system was used to generate rigid movements of a head-like phantom. Different tools, either from the manufacturer or open-source software, were used to estimate and correct for motion based on the PET data itself (SIRF with SPM and NiftyReg) and MR data acquired simultaneously (e.g. MCLFIRT, BrainCompass). Different motion estimates were compared using data acquired during robot-induced motion. The effectiveness of motion correction of PET data was evaluated by determining the segmented volume of an activity-filled flask inside the phantom. In addition, the segmented volume was used to determine the centre-of-mass and the change in maximum activity concentration. Results The results showed a volume increase between 2.7 and 36.3% could be induced by the experimental setup depending on the motion pattern. Both, BrainCompass and MCFLIRT, produced corrected PET images, by reducing the volume increase to 0.7–4.7% (BrainCompass) and to -2.8–0.4% (MCFLIRT). The same was observed for example for the centre-of-mass, where the results show that MCFLIRT (0.2–0.6 mm after motion correction) had a smaller deviation from the reference position than BrainCompass (0.5–1.8 mm) for all displacements. Conclusions The experimental setup is suitable for the reproducible generation of movement patterns. Using open-source software for motion correction is a viable alternative to the vendor-provided motion-correction software. Supplementary Information The online version contains supplementary material available at 10.1186/s40658-022-00442-6.
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Affiliation(s)
- Eric Einspänner
- Clinic of Radiology and Nuclear Medicine, Magdeburg, Germany. .,Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany.
| | - Thies H Jochimsen
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Johanna Harries
- Department of Radiation Safety and Medical Physics, Medical School Hannover, Hannover, Germany
| | - Andreas Melzer
- Innovation Center Computer Assisted Surgery (ICCAS), Faculty of Medicine, University Leipzig, Leipzig, Germany.,Institute for Medical Science and Technology IMSaT University Dundee, Dundee, UK
| | - Michael Unger
- Innovation Center Computer Assisted Surgery (ICCAS), Faculty of Medicine, University Leipzig, Leipzig, Germany
| | - Richard Brown
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Kris Thielemans
- Institute of Nuclear Medicine, University College London, London, UK
| | - Osama Sabri
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Bernhard Sattler
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
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Schebb NH, Kühn H, Kahnt AS, Rund KM, O’Donnell VB, Flamand N, Peters-Golden M, Jakobsson PJ, Weylandt KH, Rohwer N, Murphy RC, Geisslinger G, FitzGerald GA, Hanson J, Dahlgren C, Alnouri MW, Offermanns S, Steinhilber D. Formation, Signaling and Occurrence of Specialized Pro-Resolving Lipid Mediators-What is the Evidence so far? Front Pharmacol 2022; 13:838782. [PMID: 35308198 PMCID: PMC8924552 DOI: 10.3389/fphar.2022.838782] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/02/2022] [Indexed: 12/14/2022] Open
Abstract
Formation of specialized pro-resolving lipid mediators (SPMs) such as lipoxins or resolvins usually involves arachidonic acid 5-lipoxygenase (5-LO, ALOX5) and different types of arachidonic acid 12- and 15-lipoxygenating paralogues (15-LO1, ALOX15; 15-LO2, ALOX15B; 12-LO, ALOX12). Typically, SPMs are thought to be formed via consecutive steps of oxidation of polyenoic fatty acids such as arachidonic acid, eicosapentaenoic acid or docosahexaenoic acid. One hallmark of SPM formation is that reported levels of these lipid mediators are much lower than typical pro-inflammatory mediators including the monohydroxylated fatty acid derivatives (e.g., 5-HETE), leukotrienes or certain cyclooxygenase-derived prostaglandins. Thus, reliable detection and quantification of these metabolites is challenging. This paper is aimed at critically evaluating i) the proposed biosynthetic pathways of SPM formation, ii) the current knowledge on SPM receptors and their signaling cascades and iii) the analytical methods used to quantify these pro-resolving mediators in the context of their instability and their low concentrations. Based on current literature it can be concluded that i) there is at most, a low biosynthetic capacity for SPMs in human leukocytes. ii) The identity and the signaling of the proposed G-protein-coupled SPM receptors have not been supported by studies in knock-out mice and remain to be validated. iii) In humans, SPM levels were neither related to dietary supplementation with their ω-3 polyunsaturated fatty acid precursors nor were they formed during the resolution phase of an evoked inflammatory response. iv) The reported low SPM levels cannot be reliably quantified by means of the most commonly reported methodology. Overall, these questions regarding formation, signaling and occurrence of SPMs challenge their role as endogenous mediators of the resolution of inflammation.
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Affiliation(s)
- Nils Helge Schebb
- Chair of Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Wuppertal, Germany,*Correspondence: Nils Helge Schebb, ; Dieter Steinhilber,
| | - Hartmut Kühn
- Department of Biochemistry, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Astrid S. Kahnt
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt, Germany
| | - Katharina M. Rund
- Chair of Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Wuppertal, Germany
| | - Valerie B. O’Donnell
- School of Medicine, Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Nicolas Flamand
- Département de Médecine, Faculté de Médecine, Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Marc Peters-Golden
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Per-Johan Jakobsson
- Rheumatology Unit, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Karsten H. Weylandt
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, Ruppin General Hospital, Brandenburg Medical School, Neuruppin, Germany
| | - Nadine Rohwer
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, Ruppin General Hospital, Brandenburg Medical School, Neuruppin, Germany,Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Robert C. Murphy
- Department of Pharmacology, University of Colorado-Denver, Aurora, CO, United States
| | - Gerd Geisslinger
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt, University Hospital of Goethe-University, Frankfurt, Germany,Fraunhofer Institute for Translational Medicine and Pharmacology, ITMP and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, CIMD, Frankfurt, Germany
| | - Garret A. FitzGerald
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Julien Hanson
- Laboratory of Molecular Pharmacology, GIGA-Molecular Biology of Diseases, University of Liège, Liège, Belgium,Laboratory of Medicinal Chemistry, Centre for Interdisciplinary Research on Medicines (CIRM), University of Liège, Liège, Belgium
| | - Claes Dahlgren
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Mohamad Wessam Alnouri
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Stefan Offermanns
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany,Center for Molecular Medicine, Goethe University Frankfurt, Frankfurt, Germany
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt, Germany,Fraunhofer Institute for Translational Medicine and Pharmacology, ITMP and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, CIMD, Frankfurt, Germany,*Correspondence: Nils Helge Schebb, ; Dieter Steinhilber,
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43
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Bowring A, Nichols TE, Maumet C. Isolating the sources of pipeline-variability in group-level task-fMRI results. Hum Brain Mapp 2022; 43:1112-1128. [PMID: 34773436 PMCID: PMC8764489 DOI: 10.1002/hbm.25713] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 07/27/2021] [Revised: 09/28/2021] [Accepted: 10/15/2021] [Indexed: 11/15/2022] Open
Abstract
Task-fMRI researchers have great flexibility as to how they analyze their data, with multiple methodological options to choose from at each stage of the analysis workflow. While the development of tools and techniques has broadened our horizons for comprehending the complexities of the human brain, a growing body of research has highlighted the pitfalls of such methodological plurality. In a recent study, we found that the choice of software package used to run the analysis pipeline can have a considerable impact on the final group-level results of a task-fMRI investigation (Bowring et al., 2019, BMN). Here we revisit our work, seeking to identify the stages of the pipeline where the greatest variation between analysis software is induced. We carry out further analyses on the three datasets evaluated in BMN, employing a common processing strategy across parts of the analysis workflow and then utilizing procedures from three software packages (AFNI, FSL, and SPM) across the remaining steps of the pipeline. We use quantitative methods to compare the statistical maps and isolate the main stages of the workflow where the three packages diverge. Across all datasets, we find that variation between the packages' results is largely attributable to a handful of individual analysis stages, and that these sources of variability were heterogeneous across the datasets (e.g., choice of first-level signal model had the most impact for the balloon analog risk task dataset, while first-level noise model and group-level model were more influential for the false belief and antisaccade task datasets, respectively). We also observe areas of the analysis workflow where changing the software package causes minimal differences in the final results, finding that the group-level results were largely unaffected by which software package was used to model the low-frequency fMRI drifts.
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Affiliation(s)
- Alexander Bowring
- Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Population HealthBig Data Institute, University of OxfordOxfordUK
| | - Thomas E. Nichols
- Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Population HealthBig Data Institute, University of OxfordOxfordUK
- Wellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical NeurosciencesUniversity of OxfordOxfordUK
- Department of StatisticsUniversity of WarwickCoventryUK
| | - Camille Maumet
- Inria, Univ Rennes, CNRS, Inserm, IRISA UMR 6074, Empenn ERL U 1228RennesFrance
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Iwabuchi Y, Shiga T, Kameyama M, Miyazawa R, Seki M, Ito D, Uchida H, Tabuchi H, Jinzaki M. Striatal Dopaminergic Depletion Pattern Reflects Pathological Brain Perfusion Changes in Lewy Body Diseases. Mol Imaging Biol 2022; 24:950-958. [PMID: 35701723 PMCID: PMC9681681 DOI: 10.1007/s11307-022-01745-x] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/23/2022] [Accepted: 06/03/2022] [Indexed: 12/29/2022]
Abstract
PURPOSE In Lewy body diseases (LBD), various symptoms occur depending on the distribution of Lewy body in the brain, and the findings of brain perfusion and dopamine transporter single-photon emission computed tomography (DAT-SPECT) also change accordingly. We aimed to evaluate the correlation between brain perfusion SPECT and quantitative indices calculated from DAT-SPECT in patients with LBD. PROCEDURES We retrospectively enrolled 35 patients with LBD who underwent brain perfusion SPECT with N-isopropyl-p-[123I] iodoamphetamine and DAT-SPECT with 123I-ioflupane. Mini-mental state examination (MMSE) data were also collected from 19 patients. Quantitative indices (specific binding ratio [SBR], putamen-to-caudate ratio [PCR], and caudate-to-putamen ratio [CPR]) were calculated using DAT-SPECT. These data were analysed by the statistical parametric mapping procedure. RESULTS In patients with LBD, decreased PCR index correlated with hypoperfusion in the brainstem (medulla oblongata and midbrain) (uncorrected p < 0.001, k > 100), while decreased CPR index correlated with hypoperfusion in the right temporoparietal cortex (family-wise error corrected p < 0.05), right precuneus (uncorrected p < 0.001, k > 100), and bilateral temporal cortex (uncorrected p < 0.001, k > 100). However, there was no significant correlation between decreased SBR index and brain perfusion. Additionally, the MMSE score was correlated with hypoperfusion in the left temporoparietal cortex (uncorrected p < 0.001). CONCLUSIONS This study suggests that regional changes in striatal 123I-ioflupane accumulation on DAT-SPECT are related to brain perfusion changes in patients with LBD.
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Affiliation(s)
- Yu Iwabuchi
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Tohru Shiga
- Advanced Clinical Research Center, Fukushima Global Medical Science Center, Fukushima Medical University, Fukushima, Japan
| | - Masashi Kameyama
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan ,Department of Diagnostic Radiology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Raita Miyazawa
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Morinobu Seki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - Daisuke Ito
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hajime Tabuchi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Masahiro Jinzaki
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
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45
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Katayama T, Watanabe K, Narimatsu H, Kakeda S, Korogi Y. [Accuracy of VSRAD Analysis Using Scout Images: Comparison with Conventional 3D-T 1WI]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2021; 77:1411-1415. [PMID: 34924477 DOI: 10.6009/jjrt.2021_jsrt_77.12.1411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The voxel-based specific regional analysis system for Alzheimer's disease (VSRAD), which targets volume loss in medial temporal lobe, was developed as a sensitive diagnostic tool to detect early stages of Alzheimer's disease. However, conventional three-dimensional T1 -weighted image (3D-T1WI) for VSRAD analysis acquires relatively long acquisition time. Recently, it became possible to acquire Scout images (Scout) for positioning as a 3D image in a short time. The aim of this study was to determine whether Scout was reliable in VSRAD. We measured voxel-based analysis of gray matter volume using VBM and Z-score of medial temporal lobe atrophy using VSRAD advance 2 from conventional 3D-T1WI and Scout. It showed significantly different gray mass between conventional 3D-T1WI and Scout. However, there was no significant difference in Z-score (p=0.41). The Z-scores measured from Scout and conventional 3D-T1WI were significantly correlated (r=0.96, p<0.05). There is a possibility that Scout can be used to detect brain morphometry abnormalities instead of conventional 3D-T1WI in the VSRAD analysis.
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Affiliation(s)
- Tatsuya Katayama
- Department of Radiology, Wakamatsu Hospital of University of Occupational and Environmental Health.,Department of Radiology, Hospital of University of Occupational and Environmental Health
| | - Keita Watanabe
- Department of Radiology, University of Occupational and Environmental Health School of Medicine.,Department of Radiology, Kyoto University Open Innovation Institute
| | - Hidekuni Narimatsu
- Department of Radiology, Hospital of University of Occupational and Environmental Health
| | - Shingo Kakeda
- Department of Radiology, Hirosaki University School of Medicine
| | - Yukunori Korogi
- Department of Radiology, University of Occupational and Environmental Health School of Medicine
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46
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Guo L, Fu Y, Miao C, Wu S, Zhu Y, Liu Y. Second Primary Malignancy in Patients with Hypopharyngeal Carcinoma: A SEER-Based Study. Int J Gen Med 2021; 14:8847-8861. [PMID: 34858052 PMCID: PMC8630468 DOI: 10.2147/ijgm.s339595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/04/2021] [Indexed: 12/19/2022] Open
Abstract
Background A population-based analysis of the risk of secondary primary malignancy (SPM) in patients with hypopharyngeal carcinoma (HPC) has been lacking in the literature. Therefore, we conducted this study to determine the risk factors and assess the effects of SPM on the overall survival (OS) and cancer-specific survival (CSS) of patients with HPC. Methods Data on selected patients diagnosed with HPC from the Surveillance, Epidemiology and End Results (SEER) database between 1973 and 2015 were examined through logistic regression, Cox regression and nomogram methods. Results The overall risk of SPM in patients with HPC was higher than that in the general population (SIR: 2.77; P < 0.05). The specific-site, including the oral cavity, pharynx, digestive system, respiratory system and endocrine system, had a relatively higher risk of SPM. The overall risks of the subgroup of people 55–75 years of age and all subgroups of sex, race and latency were significantly elevated. In addition, patients with HPC were more likely to have been diagnosed in 2010–2015 (vs 2004–2009; P = 0.002), to be unmarried (vs married; P = 0.008), to have distant metastasis (vs no metastasis; P = 0.016) and to have had no surgery for the first tumor (vs surgery for the first tumor; P = 0.021), and these aspects were associated with a significantly elevated risk of developing SPM. SPM was independently associated with better OS and CSS. The OS and CSS in patients with HPC with SPM were better than those in patients without SPM (log rank P < 0.0001). The C indexes of the nomogram constructed with ten influencing factors including SPM were 0.681:0.699 for OS and 0.705:0.724 for CSS (training cohort:validation cohort). Conclusion Although the overall risk of SPM in patients with HPC was elevated, SPM did not decrease the OS and CSS in patients with HPC. This finding is inconsistent with clinical observations and thus requires further research and exploration. It possibly because HPC might have a shorter survival time, or the follow-up time was not long enough.
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Affiliation(s)
- Liqing Guo
- Department of Otolaryngology, The Second Affiliated Hospital of Nanchang University, NanChang, 330006, JiangXi, People's Republic of China
| | - Yanpeng Fu
- Department of Otolaryngology, The Second Affiliated Hospital of Nanchang University, NanChang, 330006, JiangXi, People's Republic of China
| | - Chunyu Miao
- Department of Otolaryngology, Nanchang Affiliated Hospital of Sun Yat-Sen University, NanChang, 330009, JiangXi, People's Republic of China
| | - Shuhong Wu
- Department of Otolaryngology, The Second Affiliated Hospital of Nanchang University, NanChang, 330006, JiangXi, People's Republic of China
| | - Yaqiong Zhu
- Department of Otolaryngology, The Second Affiliated Hospital of Nanchang University, NanChang, 330006, JiangXi, People's Republic of China
| | - Yuehui Liu
- Department of Otolaryngology, The Second Affiliated Hospital of Nanchang University, NanChang, 330006, JiangXi, People's Republic of China
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Schöbi D, Do CT, Frässle S, Tittgemeyer M, Heinzle J, Stephan KE. Technical note: A fast and robust integrator of delay differential equations in DCM for electrophysiological data. Neuroimage 2021; 244:118567. [PMID: 34530135 DOI: 10.1016/j.neuroimage.2021.118567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 07/05/2021] [Accepted: 09/07/2021] [Indexed: 10/20/2022] Open
Abstract
Dynamic causal models (DCMs) of electrophysiological data allow, in principle, for inference on hidden, bulk synaptic function in neural circuits. The directed influences between the neuronal elements of modeled circuits are subject to delays due to the finite transmission speed of axonal connections. Ordinary differential equations are therefore not adequate to capture the ensuing circuit dynamics, and delay differential equations (DDEs) are required instead. Previous work has illustrated that the integration of DDEs in DCMs benefits from sophisticated integration schemes in order to ensure rigorous parameter estimation and correct model identification. However, integration schemes that have been proposed for DCMs either emphasize speed (at the possible expense of accuracy) or robustness (but with computational costs that are problematic in practice). In this technical note, we propose an alternative integration scheme that overcomes these shortcomings and offers high computational efficiency while correctly preserving the nature of delayed effects. This integration scheme is available as open-source code in the Translational Algorithms for Psychiatry-Advancing Science (TAPAS) toolbox and can be easily integrated into existing software (SPM) for the analysis of DCMs for electrophysiological data. While this paper focuses on its application to the convolution-based formalism of DCMs, the new integration scheme can be equally applied to more advanced formulations of DCMs (e.g. conductance based models). Our method provides a new option for electrophysiological DCMs that offers the speed required for scientific projects, but also the accuracy required for rigorous translational applications, e.g. in computational psychiatry.
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Affiliation(s)
- Dario Schöbi
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich & Swiss Institute of Technology (ETH Zurich), Wilfriedstrasse 6, Zurich 8032, Switzerland
| | - Cao-Tri Do
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich & Swiss Institute of Technology (ETH Zurich), Wilfriedstrasse 6, Zurich 8032, Switzerland
| | - Stefan Frässle
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich & Swiss Institute of Technology (ETH Zurich), Wilfriedstrasse 6, Zurich 8032, Switzerland
| | - Marc Tittgemeyer
- Max Planck Institute for Metabolism Research, Gleuler Strasse 50, Cologne 50931, Germany; Cluster of Excellence in Cellular Stress and Aging associated Disease (CECAD), Cologne 50931, Germany
| | - Jakob Heinzle
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich & Swiss Institute of Technology (ETH Zurich), Wilfriedstrasse 6, Zurich 8032, Switzerland.
| | - Klaas Enno Stephan
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich & Swiss Institute of Technology (ETH Zurich), Wilfriedstrasse 6, Zurich 8032, Switzerland; Max Planck Institute for Metabolism Research, Gleuler Strasse 50, Cologne 50931, Germany
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Matsuyama A, Yano S, Taniguchi Y, Kindaichi M, Tada A, Wada M. Trends in mercury concentrations and methylation in Minamata Bay, Japan, between 2014 and 2018. Mar Pollut Bull 2021; 173:112886. [PMID: 34571383 DOI: 10.1016/j.marpolbul.2021.112886] [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: 03/06/2021] [Revised: 07/21/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
Methylmercury concentrations in Minamata Bay are high, but the cause is unclear. We conducted a basic study on the behavior of methylmercury in Minamata Bay seawater; the findings suggest that mercury methylation may occur throughout the year in Minamata Bay. Seawater temperature, salinity, and concentrations of dissolved organic carbon were the environmental factors that affected methylation, and the degree of methylation was closely related to bacterial community structure. The concentration of methylmercury in suspended particulate matter was highest 10 m below the surface and decreased with greater depths. We did not observe a correlation between methylmercury concentrations in suspended particulate matter and concentrations of dissolved methylmercury.
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Affiliation(s)
- Akito Matsuyama
- Department of International Affairs and Research, National Institute for Minamata Disease (NIMD), 4058-18 Hama, Minamata, Kumamoto 867-0008, Japan.
| | - Shinichiro Yano
- Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Yoko Taniguchi
- Department of International Affairs and Research, National Institute for Minamata Disease (NIMD), 4058-18 Hama, Minamata, Kumamoto 867-0008, Japan.
| | - Michiaki Kindaichi
- Department of International Affairs and Research, National Institute for Minamata Disease (NIMD), 4058-18 Hama, Minamata, Kumamoto 867-0008, Japan.
| | - Akihide Tada
- Faculty of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Minoru Wada
- Faculty of Fisheries, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
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Molaei E, Molaei A, Hayes AW, Karimi G. Resolvin D1, therapeutic target in acute respiratory distress syndrome. Eur J Pharmacol 2021; 911:174527. [PMID: 34582846 DOI: 10.1016/j.ejphar.2021.174527] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/09/2021] [Accepted: 09/23/2021] [Indexed: 12/25/2022]
Abstract
Acute lung injury (ALI), or its more severe form, acute respiratory distress syndrome (ARDS), is a disease with high mortality and is a serious challenge facing the World Health Organization because there is no specific treatment. The excessive and prolonged immune response is the hallmark of this disorder, so modulating and regulating inflammation plays an important role in its prevention and treatment. Resolvin D1 (RvD1) as a specialized pro-resolving mediator has the potential to suppress the expression of inflammatory cytokines and to facilitate the production of antioxidant proteins by stimulating lipoxin A4 receptor/formyl peptide receptor 2 (ALX/FPR2). These changes limit the invasion of immune cells into the lung tissue, inhibit coagulation, and enhance cell protection against oxidative stress (OS). In particular, this biomolecule reduces the generation of reactive oxygen species (ROS) by blocking the activation of inflammatory transcription factors, especially nuclear factor-κB (NF-κB), and accelerating the synthesis of antioxidant compounds such as heme oxygenase 1 (HO-1) and superoxide dismutase (SOD). Therefore, the destruction and dysfunction of important cell components such as cytoplasmic membrane, mitochondria, Na+/k + adenosine triphosphatase (ATPase) and proteins involved in the phagocytic activity of scavenger macrophages are attenuated. Numerous studies on the effect of RvD1 over inflammation using animal models revealed that Rvs have both anti-inflammatory and pro-resolving capabilities and therefore, might have potential therapeutic value in treating ALI. Here, we review the current knowledge on the classification, biosynthesis, receptors, mechanisms of action, and role of Rvs in ALI/ARDS.
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Kishioka S. Building a Scanning Probe Microscope Using Open Source Control Software and Systems. ANAL SCI 2021; 37:1645-1649. [PMID: 34219116 DOI: 10.2116/analsci.21a004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A scanning probe microscope (SPM) operating in air and liquid was constructed using an open-source control software running on Linux, a correspondingly developed commercial SPM controller and a commercial STM head. The results are shown for highly oriented pyrolytic graphite (HOPG) and Au(111) substrate surfaces, which are typical samples for SPM measurements. The cost of building the system was much lower than that of commercial products with comparable performance. The system has great scalability, and can be applied to a various environment, such as ultra-high vacuum systems.
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