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Aldas-Vargas A, Kers JG, Smidt H, Rijnaarts HHM, Sutton NB. Bioaugmentation has temporary effect on anaerobic pesticide biodegradation in simulated groundwater systems. Biodegradation 2024; 35:281-297. [PMID: 37439919 PMCID: PMC10951022 DOI: 10.1007/s10532-023-10039-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/30/2023] [Indexed: 07/14/2023]
Abstract
Groundwater is the most important source for drinking water in The Netherlands. Groundwater quality is threatened by the presence of pesticides, and biodegradation is a natural process that can contribute to pesticide removal. Groundwater conditions are oligotrophic and thus biodegradation can be limited by the presence and development of microbial communities capable of biodegrading pesticides. For that reason, bioremediation technologies such as bioaugmentation (BA) can help to enhance pesticide biodegradation. We studied the effect of BA using enriched mixed inocula in two column bioreactors that simulate groundwater systems at naturally occurring redox conditions (iron and sulfate-reducing conditions). Columns were operated for around 800 days, and two BA inoculations (BA1 and BA2) were conducted in each column. Inocula were enriched from different wastewater treatment plants (WWTPs) under different redox-conditions. We observed a temporary effect of BA1, reaching 100% removal efficiency of the pesticide 2,4-D after 100 days in both columns. In the iron-reducing column, 2,4-D removal was in general higher than under sulfate-reducing conditions demonstrating the influence of redox conditions on overall biodegradation. We observed a temporary shift in microbial communities after BA1 that is relatable to the increase in 2,4-D removal efficiency. After BA2 under sulfate-reducing conditions, 2,4-D removal efficiency decreased, but no change in the column microbial communities was observed. The present study demonstrates that BA with a mixed inoculum can be a valuable technique for improving biodegradation in anoxic groundwater systems at different redox-conditions.
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Affiliation(s)
- Andrea Aldas-Vargas
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 EV, Wageningen, The Netherlands
| | - Jannigje G Kers
- Laboratory of Microbiology, Wageningen University & Research, P.O. Box 8033, 6700 EH, Wageningen, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, P.O. Box 8033, 6700 EH, Wageningen, The Netherlands
| | - Huub H M Rijnaarts
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 EV, Wageningen, The Netherlands
| | - Nora B Sutton
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 EV, Wageningen, The Netherlands.
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2
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Versteeg E, Nam KM, Klomp DWJ, Bhogal AA, Siero JCW, Wijnen JP. A silent echo-planar spectroscopic imaging readout with high spectral bandwidth MRSI using an ultrasonic gradient axis. Magn Reson Med 2024; 91:2247-2256. [PMID: 38205917 DOI: 10.1002/mrm.30008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
PURPOSE We present a novel silent echo-planar spectroscopic imaging (EPSI) readout, which uses an ultrasonic gradient insert to accelerate MRSI while producing a high spectral bandwidth (20 kHz) and a low sound level. METHODS The ultrasonic gradient insert consisted of a single-axis (z-direction) plug-and-play gradient coil, powered by an audio amplifier, and produced 40 mT/m at 20 kHz. The silent EPSI readout was implemented in a phase-encoded MRSI acquisition. Here, the additional spatial encoding provided by this silent EPSI readout was used to reduce the number of phase-encoding steps. Spectroscopic acquisitions using phase-encoded MRSI, a conventional EPSI-readout, and the silent EPSI readout were performed on a phantom containing metabolites with resonance frequencies in the ppm range of brain metabolites (0-4 ppm). These acquisitions were used to determine sound levels, showcase the high spectral bandwidth of the silent EPSI readout, and determine the SNR efficiency and the scan efficiency. RESULTS The silent EPSI readout featured a 19-dB lower sound level than a conventional EPSI readout while featuring a high spectral bandwidth of 20 kHz without spectral ghosting artifacts. Compared with phase-encoded MRSI, the silent EPSI readout provided a 4.5-fold reduction in scan time. In addition, the scan efficiency of the silent EPSI readout was higher (82.5% vs. 51.5%) than the conventional EPSI readout. CONCLUSIONS We have for the first time demonstrated a silent spectroscopic imaging readout with a high spectral bandwidth and low sound level. This sound reduction provided by the silent readout is expected to have applications in sound-sensitive patient groups, whereas the high spectral bandwidth could benefit ultrahigh-field MR systems.
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Affiliation(s)
- Edwin Versteeg
- Center for Image Sciences, Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kyung Min Nam
- Center for Image Sciences, Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Dennis W J Klomp
- Center for Image Sciences, Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Alex A Bhogal
- Center for Image Sciences, Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jeroen C W Siero
- Center for Image Sciences, Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
- Spinoza Centre for Neuroimaging, Amsterdam, Netherlands
| | - Jannie P Wijnen
- Center for Image Sciences, Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
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3
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Bruins S, van Bergen E, Masselink MW, Barzeva SA, Hartman CA, Otten R, Rommelse NNJ, Dolan CV, Boomsma DI. Are Genetic and Environmental Risk Factors for Psychopathology Amplified in Children with Below-Average Intelligence? A Population-Based Twin Study. Behav Genet 2024; 54:278-289. [PMID: 38353893 PMCID: PMC11032279 DOI: 10.1007/s10519-023-10174-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 12/20/2023] [Indexed: 04/21/2024]
Abstract
There is a negative association between intelligence and psychopathology. We analyzed data on intelligence and psychopathology to assess this association in seven-year-old Dutch twin pairs (ranging from 616 to 14,150 depending on the phenotype) and estimated the degree to which genetic and environmental factors common to intelligence and psychopathology explain the association. Secondly, we examined whether genetic and environmental effects on psychopathology are moderated by intelligence. We found that intelligence, as assessed by psychometric IQ tests, correlated negatively with childhood psychopathology, as assessed by the DSM-oriented scales of the Child Behavior Check List (CBCL). The correlations ranged between - .09 and - .15 and were mainly explained by common genetic factors. Intelligence moderated genetic and environmental effects on anxiety and negative affect, but not those on ADHD, ODD, and autism. The heritability of anxiety and negative affect was greatest in individuals with below-average intelligence. We discuss mechanisms through which this effect could arise, and we end with some recommendations for future research.
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Affiliation(s)
- Susanne Bruins
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.
| | - Elsje van Bergen
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
- Research Institute LEARN!, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurits W Masselink
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Stefania A Barzeva
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Catharina A Hartman
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Roy Otten
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
| | - Nanda N J Rommelse
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Karakter Child and Adolescent Psychiatry University Center, Nijmegen, The Netherlands
| | - Conor V Dolan
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Dorret I Boomsma
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Research and Development (AR&D) Research Institute, Amsterdam, The Netherlands
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4
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Wijnen K, Genzel L, van der Meij J. Rodent maze studies: from following simple rules to complex map learning. Brain Struct Funct 2024; 229:823-841. [PMID: 38488865 PMCID: PMC11004052 DOI: 10.1007/s00429-024-02771-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/30/2024] [Indexed: 03/17/2024]
Abstract
More than 100 years since the first maze designed for rodent research, researchers now have the choice of a variety of mazes that come in many different shapes and sizes. Still old designs get modified and new designs are introduced to fit new research questions. Yet, which maze is the most optimal to use or which training paradigm should be applied, remains up for debate. In this review, we not only provide a historical overview of maze designs and usages in rodent learning and memory research, but also discuss the possible navigational strategies the animals can use to solve each maze. Furthermore, we summarize the different phases of learning that take place when a maze is used as the experimental task. At last, we delve into how training and maze design can affect what the rodents are actually learning in a spatial task.
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Affiliation(s)
- Kjell Wijnen
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Postbus 9010, 6500 GL, Nijmegen, The Netherlands
| | - Lisa Genzel
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Postbus 9010, 6500 GL, Nijmegen, The Netherlands.
| | - Jacqueline van der Meij
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Postbus 9010, 6500 GL, Nijmegen, The Netherlands.
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5
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Ravenstijn M, Jansen RC, du Bois G, Yzer S, Klaver CCW. Empowering patients with high myopia: The significance of education. Acta Ophthalmol 2024; 102:357-363. [PMID: 37899508 DOI: 10.1111/aos.15779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/01/2023] [Accepted: 09/18/2023] [Indexed: 10/31/2023]
Abstract
PURPOSE To investigate the status of patient education among highly myopic individuals focusing on the presence, sources, content, timing of the education and impact on patients. METHODS Self-reported data were collected through an online 13-item questionnaire consisting of open and multiple-choice questions. The questionnaire was sent to 250 highly myopic members of a patient organization in the Netherlands, of whom 128 (51%) responded. RESULTS At least one acute event had occurred in 66% (84/128) of participants at the time of the questionnaire. Among all participants, 25% (32/128) had not received patient education regarding alarm symptoms for any of these events. Among those who had been informed, the ophthalmologist was the most frequent (57%, 73/128) source of information. Participants who visited the ophthalmologist annually were more frequently informed than participants without annual visits (53%, 26/49 versus 26%, 9/35, p = 0.002). Those not informed were more likely to have a more than 3 days patient delay (92%, 12/13). Doctors delay was also present; 26% (22/84) of the participants with alarm symptoms had to wait 2 or more days before the first appointment. Long-term consequences of myopia had been discussed with 102 participants (80%, 102/128), again with the ophthalmologist as the most frequent source (59%, 76/128). PERSPECTIVES Many myopic individuals have not been educated about their increased risk of acute events, which can result in patient delay and serious consequences with respect to visual prognosis. These findings underscore the critical importance of integrating patient education across the entire ophthalmic care chain for myopia.
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Affiliation(s)
- M Ravenstijn
- Rotterdam Ophthalmic Institute, Rotterdam Eye Hospital, Rotterdam, The Netherlands
- Department of Ophthalmology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - R C Jansen
- Oogvereniging, Utrecht, The Netherlands
- Groningen Bioinformatics Centre, University of Groningen, Groningen, The Netherlands
| | - G du Bois
- Oogvereniging, Utrecht, The Netherlands
| | - S Yzer
- Department of Ophthalmology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - C C W Klaver
- Department of Ophthalmology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Ophthalmology, Radboud University Medical Centre, Nijmegen, The Netherlands
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Institute of Molecular and Clinical Ophthalmology, University of Basel, Basel, Switzerland
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van der Wal LI, Grim CCA, Del Prado MR, van Westerloo DJ, Schultz MJ, Helmerhorst HJF, de Vries MC, de Jonge E. Perspectives of ICU Patients on Deferred Consent in the Context of Post-ICU Quality of Life: A Substudy of a Randomized Clinical Trial. Crit Care Med 2024; 52:694-703. [PMID: 38180043 PMCID: PMC11008447 DOI: 10.1097/ccm.0000000000006184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
OBJECTIVES Deferred consent enables research to be conducted in the ICU when patients are unable to provide consent themselves, and there is insufficient time to obtain consent from surrogates before commencing (trial) treatment. The aim of this study was to evaluate how former ICU patients reflect on their participation in a study with deferred consent and examine whether their opinions are influenced by the quality of life (QoL) following hospital discharge. DESIGN Survey study by questionnaire. SETTING Eight ICUs in The Netherlands. PATIENTS Former ICU patients who participated in the ICONIC trial, a multicenter randomized clinical trial that evaluated oxygenation targets in mechanically ventilated ICU patients. INTERVENTIONS Participants enrolled in the ICONIC trial in one of the eight participating centers in The Netherlands received a questionnaire 6 months after randomization. The questionnaire included 12 close-ended questions on their opinion about the deferred consent procedure. QoL was measured using the EQ-5D-5L questionnaire. By calculating the EQ-5D index, patients were divided into four QoL quartiles, where Q1 reflects the lowest and Q4 is the highest. MEASUREMENTS AND MAIN RESULTS Of 362 participants who were contacted, 197 responded (54%). More than half of the respondents (59%) were unaware of their participation in the ICONIC study. In total 61% were content with the deferred consent procedure, 1% were not content, 25% neutral, 9% did not know, and 9% answered "other." Those with a higher QoL were more likely to be content ( p = 0.02). In all QoL groups, the legal representative was the most often preferred individual to provide consent. CONCLUSIONS Former ICU patients who participated in the ICONIC study often did not remember their participation but were predominantly positive regarding the use of deferred consent. Those with a higher QoL were most likely to be content.
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Affiliation(s)
- L Imeen van der Wal
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Anaesthesiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Chloe C A Grim
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Anaesthesiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Michael R Del Prado
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
| | - David J van Westerloo
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
| | - Marcus J Schultz
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Anaesthesiology, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Intensive Care, Amsterdam University Medical Centre, Location AMC, Amsterdam, The Netherlands
- Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Department of Medical Ethics and Health Law, Leiden University Medical Centre, Leiden, The Netherlands
| | - Hendrik J F Helmerhorst
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Anaesthesiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Martine C de Vries
- Department of Medical Ethics and Health Law, Leiden University Medical Centre, Leiden, The Netherlands
| | - Evert de Jonge
- Department of Intensive Care, Leiden University Medical Centre, Leiden, The Netherlands
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Safarlou CW, Bredenoord AL, Vermeulen R, Jongsma KR. Nature-versus-nurture considered harmful: Actionability as an alternative tool for understanding the exposome from an ethical perspective. Bioethics 2024; 38:356-366. [PMID: 38441318 DOI: 10.1111/bioe.13276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/18/2023] [Accepted: 01/23/2024] [Indexed: 04/17/2024]
Abstract
Exposome research is put forward as a major tool for solving the nature-versus-nurture debate because the exposome is said to represent "the nature of nurture." Against this influential idea, we argue that the adoption of the nature-versus-nurture debate into the exposome research program is a mistake that needs to be undone to allow for a proper bioethical assessment of exposome research. We first argue that this adoption is originally based on an equivocation between the traditional nature-versus-nurture debate and a debate about disease prediction/etiology. Second, due to this mistake, exposome research is pushed to adopt a limited conception of agential control that is harmful to one's thinking about the good that exposome research can do for human health and wellbeing. To fully excise the nature-versus-nurture debate from exposome research, we argue that exposome researchers and bioethicists need to think about the exposome afresh from the perspective of actionability. We define the concept of actionability and related concepts and show how these can be used to analyze the ethical aspects of the exposome. In particular, we focus on refuting the popular "gun analogy" in exposome research, returning results to study participants and risk-taking in the context of a well-lived life.
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Affiliation(s)
- Caspar W Safarlou
- Department of Global Public Health and Bioethics, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Annelien L Bredenoord
- Department of Global Public Health and Bioethics, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
- Erasmus School of Philosophy, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Roel Vermeulen
- Department of Global Public Health and Bioethics, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Population Health Sciences, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Karin R Jongsma
- Department of Global Public Health and Bioethics, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
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Lambooij JM, Tak T, Zaldumbide A, Guigas B. A 30-color spectral flow cytometry panel for comprehensive analysis of immune cell composition and macrophage subsets in mouse metabolic organs. Cytometry A 2024. [PMID: 38651815 DOI: 10.1002/cyto.a.24845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
Obesity-induced chronic low-grade inflammation, also known as metaflammation, results from alterations of the immune response in metabolic organs and contributes to the development of fatty liver diseases and type 2 diabetes. The diversity of tissue-resident leukocytes involved in these metabolic dysfunctions warrants an in-depth immunophenotyping in order to elucidate disease etiology. Here, we present a 30-color, full spectrum flow cytometry panel, designed to (i) identify the major innate and adaptive immune cell subsets in murine liver and white adipose tissues and (ii) discriminate various tissue-specific myeloid subsets known to contribute to the development of metabolic dysfunctions. This panel notably allows for distinguishing embryonically-derived liver-resident Kupffer cells from newly recruited monocyte-derived macrophages and KCs. Furthermore, several adipose tissue macrophage (ATM) subsets, including perivascular macrophages, lipid-associated macrophages, and pro-inflammatory CD11c+ ATMs, can also be identified. Finally, the panel includes cell-surface markers that have been associated with metabolic activation of different macrophage and dendritic cell subsets. Altogether, our spectral flow cytometry panel allows for an extensive immunophenotyping of murine metabolic tissues, with a particular focus on metabolically-relevant myeloid cell subsets, and can easily be adjusted to include various new markers if needed.
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Affiliation(s)
- Joost M Lambooij
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tamar Tak
- Flow Cytometry Core Facility, Leiden University Medical Center, Leiden, The Netherlands
| | - Arnaud Zaldumbide
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Bruno Guigas
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
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9
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Ding R, Ten Oever S, Martin AE. Delta-band Activity Underlies Referential Meaning Representation during Pronoun Resolution. J Cogn Neurosci 2024:1-21. [PMID: 38652108 DOI: 10.1162/jocn_a_02163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Human language offers a variety of ways to create meaning, one of which is referring to entities, objects, or events in the world. One such meaning maker is understanding to whom or to what a pronoun in a discourse refers to. To understand a pronoun, the brain must access matching entities or concepts that have been encoded in memory from previous linguistic context. Models of language processing propose that internally stored linguistic concepts, accessed via exogenous cues such as phonological input of a word, are represented as (a)synchronous activities across a population of neurons active at specific frequency bands. Converging evidence suggests that delta band activity (1-3 Hz) is involved in temporal and representational integration during sentence processing. Moreover, recent advances in the neurobiology of memory suggest that recollection engages neural dynamics similar to those which occurred during memory encoding. Integrating from these two research lines, we here tested the hypothesis that neural dynamic patterns, especially in delta frequency range, underlying referential meaning representation, would be reinstated during pronoun resolution. By leveraging neural decoding techniques (i.e., representation similarity analysis) on a magnetoencephalogram data set acquired during a naturalistic story-listening task, we provide evidence that delta-band activity underlies referential meaning representation. Our findings suggest that, during spoken language comprehension, endogenous linguistic representations such as referential concepts may be proactively retrieved and represented via activation of their underlying dynamic neural patterns.
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Affiliation(s)
- Rong Ding
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
| | - Sanne Ten Oever
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Radboud University Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
| | - Andrea E Martin
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Radboud University Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
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Vallés-Martí A, de Goeij-de Haas RR, Henneman AA, Piersma SR, Pham TV, Knol JC, Verheij J, Dijk F, Halfwerk H, Giovannetti E, Jiménez CR, Bijlsma MF. Kinase activities in pancreatic ductal adenocarcinoma with prognostic and therapeutic avenues. Mol Oncol 2024. [PMID: 38650175 DOI: 10.1002/1878-0261.13625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/12/2023] [Accepted: 02/21/2024] [Indexed: 04/25/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease with a limited number of known driver mutations but considerable cancer cell heterogeneity. Phosphoproteomics provides a direct read-out of aberrant signaling and the resultant clinically relevant phenotype. Mass spectrometry (MS)-based proteomics and phosphoproteomics were applied to 42 PDAC tumors. Data encompassed over 19 936 phosphoserine or phosphothreonine (pS/T; in 5412 phosphoproteins) and 1208 phosphotyrosine (pY; in 501 phosphoproteins) sites and a total of 3756 proteins. Proteome data identified three distinct subtypes with tumor intrinsic and stromal features. Subsequently, three phospho-subtypes were apparent: two tumor intrinsic (Phos1/2) and one stromal (Phos3), resembling known PDAC molecular subtypes. Kinase activity was analyzed by the Integrative iNferred Kinase Activity (INKA) scoring. Phospho-subtypes displayed differential phosphorylation signals and kinase activity, such as FGR and GSK3 activation in Phos1, SRC kinase family and EPHA2 in Phos2, and EGFR, INSR, MET, ABL1, HIPK1, JAK, and PRKCD in Phos3. Kinase activity analysis of an external PDAC cohort supported our findings and underscored the importance of PI3K/AKT and ERK pathways, among others. Interestingly, unfavorable patient prognosis correlated with higher RTK, PAK2, STK10, and CDK7 activity and high proliferation, whereas long survival was associated with MYLK and PTK6 activity, which was previously unknown. Subtype-associated activity profiles can guide therapeutic combination approaches in tumor and stroma-enriched tissues, and emphasize the critical role of parallel signaling pathways. In addition, kinase activity profiling identifies potential disease markers with prognostic significance.
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Affiliation(s)
- Andrea Vallés-Martí
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
- Cancer Biology, Cancer Center Amsterdam, The Netherlands
- Pharmacology Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Richard R de Goeij-de Haas
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Alex A Henneman
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Sander R Piersma
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Thang V Pham
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Jaco C Knol
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Joanne Verheij
- Department of Pathology, Amsterdam University Medical Center, The Netherlands
| | - Frederike Dijk
- Department of Pathology, Amsterdam University Medical Center, The Netherlands
| | - Hans Halfwerk
- Department of Pathology, Amsterdam University Medical Center, The Netherlands
| | - Elisa Giovannetti
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- Pharmacology Laboratory, Cancer Center Amsterdam, The Netherlands
- Cancer Pharmacology Lab, AIRC Start-Up Unit, Fondazione Pisana per la Scienza, San Giuliano Terme, Italy
| | - Connie R Jiménez
- Department of Medical Oncology, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
- OncoProteomics Laboratory, Cancer Center Amsterdam, The Netherlands
| | - Maarten F Bijlsma
- Cancer Biology, Cancer Center Amsterdam, The Netherlands
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Amsterdam University Medical Center, University of Amsterdam, The Netherlands
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11
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Duran K, Kohlstedt M, van Erven G, Klostermann CE, America AHP, Bakx E, Baars JJP, Gorissen A, de Visser R, de Vries RP, Wittmann C, Comans RNJ, Kuyper TW, Kabel MA. From 13C-lignin to 13C-mycelium: Agaricus bisporus uses polymeric lignin as a carbon source. Sci Adv 2024; 10:eadl3419. [PMID: 38640242 PMCID: PMC11029805 DOI: 10.1126/sciadv.adl3419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/19/2024] [Indexed: 04/21/2024]
Abstract
Plant biomass conversion by saprotrophic fungi plays a pivotal role in terrestrial carbon (C) cycling. The general consensus is that fungi metabolize carbohydrates, while lignin is only degraded and mineralized to CO2. Recent research, however, demonstrated fungal conversion of 13C-monoaromatic compounds into proteinogenic amino acids. To unambiguously prove that polymeric lignin is not merely degraded, but also metabolized, carefully isolated 13C-labeled lignin served as substrate for Agaricus bisporus, the world's most consumed mushroom. The fungus formed a dense mycelial network, secreted lignin-active enzymes, depolymerized, and removed lignin. With a lignin carbon use efficiency of 0.14 (g/g) and fungal biomass enrichment in 13C, we demonstrate that A. bisporus assimilated and further metabolized lignin when offered as C-source. Amino acids were high in 13C-enrichment, while fungal-derived carbohydrates, fatty acids, and ergosterol showed traces of 13C. These results hint at lignin conversion via aromatic ring-cleaved intermediates to central metabolites, underlining lignin's metabolic value for fungi.
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Affiliation(s)
- Katharina Duran
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
| | - Michael Kohlstedt
- Institute of Systems Biotechnology, Saarland University, Campus A 1.5, 66123 Saarbrücken, Germany
| | - Gijs van Erven
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
- Wageningen Food and Biobased Research, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
| | - Cynthia E. Klostermann
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen Netherlands
| | - Antoine H. P. America
- Bioscience, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
| | - Edwin Bakx
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
| | - Johan J. P. Baars
- Plant Breeding, Wageningen University & Research, 6708 PB Wageningen, Netherlands
- CNC Grondstoffen, Driekronenstraat 6, 6596 MA Milsbeek, Netherlands
| | - Antonie Gorissen
- IsoLife bv, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
| | - Ries de Visser
- IsoLife bv, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
| | - Ronald P. de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, Netherlands
| | - Christoph Wittmann
- Institute of Systems Biotechnology, Saarland University, Campus A 1.5, 66123 Saarbrücken, Germany
| | - Rob N. J. Comans
- Soil Chemistry and Chemical Soil Quality Group, Wageningen University & Research, Droevendaalsesteeg 3a, 6708 PB Wageningen, Netherlands
| | - Thomas W. Kuyper
- Soil Biology Group, Wageningen University & Research, Droevendaalsesteeg 3a, 6708 PB Wageningen, Netherlands
| | - Mirjam A. Kabel
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
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12
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van Osch MJP, Wåhlin A, Scheyhing P, Mossige I, Hirschler L, Eklund A, Mogensen K, Gomolka R, Radbruch A, Qvarlander S, Decker A, Nedergaard M, Mori Y, Eide PK, Deike K, Ringstad G. Human brain clearance imaging: Pathways taken by magnetic resonance imaging contrast agents after administration in cerebrospinal fluid and blood. NMR Biomed 2024:e5159. [PMID: 38634301 DOI: 10.1002/nbm.5159] [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] [Received: 10/04/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 04/19/2024]
Abstract
Over the last decade, it has become evident that cerebrospinal fluid (CSF) plays a pivotal role in brain solute clearance through perivascular pathways and interactions between the brain and meningeal lymphatic vessels. Whereas most of this fundamental knowledge was gained from rodent models, human brain clearance imaging has provided important insights into the human system and highlighted the existence of important interspecies differences. Current gold standard techniques for human brain clearance imaging involve the injection of gadolinium-based contrast agents and monitoring their distribution and clearance over a period from a few hours up to 2 days. With both intrathecal and intravenous injections being used, which each have their own specific routes of distribution and thus clearance of contrast agent, a clear understanding of the kinetics associated with both approaches, and especially the differences between them, is needed to properly interpret the results. Because it is known that intrathecally injected contrast agent reaches the blood, albeit in small concentrations, and that similarly some of the intravenously injected agent can be detected in CSF, both pathways are connected and will, in theory, reach the same compartments. However, because of clear differences in relative enhancement patterns, both injection approaches will result in varying sensitivities for assessment of different subparts of the brain clearance system. In this opinion review article, the "EU Joint Programme - Neurodegenerative Disease Research (JPND)" consortium on human brain clearance imaging provides an overview of contrast agent pharmacokinetics in vivo following intrathecal and intravenous injections and what typical concentrations and concentration-time curves should be expected. This can be the basis for optimizing and interpreting contrast-enhanced MRI for brain clearance imaging. Furthermore, this can shed light on how molecules may exchange between blood, brain, and CSF.
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Affiliation(s)
- Matthias J P van Osch
- C. J. Gorter MRI Center, Department of Radiology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Anders Wåhlin
- Department of Radiation Sciences, Radiation Physics, Biomedical Engineering, Umeå University, Umeå, Sweden
- Department of Applied Physics and Electronics, Umeå University, Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden
| | - Paul Scheyhing
- Department of Neuroradiology, University Medical Center Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Ingrid Mossige
- Division of Radiology and Nuclear Medicine, Department of Physics and Computational Radiology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, The Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lydiane Hirschler
- C. J. Gorter MRI Center, Department of Radiology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Anders Eklund
- Department of Radiation Sciences, Radiation Physics, Biomedical Engineering, Umeå University, Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden
| | - Klara Mogensen
- Department of Radiation Sciences, Radiation Physics, Biomedical Engineering, Umeå University, Umeå, Sweden
| | - Ryszard Gomolka
- Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark
| | - Alexander Radbruch
- Department of Neuroradiology, University Medical Center Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Sara Qvarlander
- Department of Radiation Sciences, Radiation Physics, Biomedical Engineering, Umeå University, Umeå, Sweden
| | - Andreas Decker
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Maiken Nedergaard
- Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Yuki Mori
- Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark
| | - Per Kristian Eide
- Department of Neurosurgery, Oslo University Hospital-Rikshospitalet, Oslo, Norway
- KG Jebsen Centre for Brain Fluid Research, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Katerina Deike
- Department of Neuroradiology, University Medical Center Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Geir Ringstad
- Department of Radiology, Oslo University Hospital-Rikshospitalet, Oslo, Norway
- Department of Geriatrics and Internal Medicine, Sorlandet Hospital, Arendal, Norway
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13
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van Buuren MMA, Riedstra NS, van den Berg MA, Boel FDEM, Ahedi H, Arbabi V, Arden NK, Bierma-Zeinstra SMA, Boer CG, Cicuttini F, Cootes TF, Crossley K, Felson D, Gielis WP, Heerey J, Jones G, Kluzek S, Lane NE, Lindner C, Lynch JA, Van Meurs J, Mosler AB, Nelson AE, Nevitt M, Oei E, Runhaar J, Tang J, Weinans H, Agricola R. Cohort profile: Worldwide Collaboration on OsteoArthritis prediCtion for the Hip (World COACH) - an international consortium of prospective cohort studies with individual participant data on hip osteoarthritis. BMJ Open 2024; 14:e077907. [PMID: 38637130 PMCID: PMC11029301 DOI: 10.1136/bmjopen-2023-077907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 02/20/2024] [Indexed: 04/20/2024] Open
Abstract
PURPOSE Hip osteoarthritis (OA) is a major cause of pain and disability worldwide. Lack of effective therapies may reflect poor knowledge on its aetiology and risk factors, and result in the management of end-stage hip OA with costly joint replacement. The Worldwide Collaboration on OsteoArthritis prediCtion for the Hip (World COACH) consortium was established to pool and harmonise individual participant data from prospective cohort studies. The consortium aims to better understand determinants and risk factors for the development and progression of hip OA, to optimise and automate methods for (imaging) analysis, and to develop a personalised prediction model for hip OA. PARTICIPANTS World COACH aimed to include participants of prospective cohort studies with ≥200 participants, that have hip imaging data available from at least 2 time points at least 4 years apart. All individual participant data, including clinical data, imaging (data), biochemical markers, questionnaires and genetic data, were collected and pooled into a single, individual-level database. FINDINGS TO DATE World COACH currently consists of 9 cohorts, with 38 021 participants aged 18-80 years at baseline. Overall, 71% of the participants were women and mean baseline age was 65.3±8.6 years. Over 34 000 participants had baseline pelvic radiographs available, and over 22 000 had an additional pelvic radiograph after 8-12 years of follow-up. Even longer radiographic follow-up (15-25 years) is available for over 6000 of these participants. FUTURE PLANS The World COACH consortium offers unique opportunities for studies on the relationship between determinants/risk factors and the development or progression of hip OA, by using harmonised data on clinical findings, imaging, biomarkers, genetics and lifestyle. This provides a unique opportunity to develop a personalised hip OA risk prediction model and to optimise methods for imaging analysis of the hip.
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Affiliation(s)
- Michiel M A van Buuren
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Noortje S Riedstra
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Myrthe A van den Berg
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Fleur D E M Boel
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Harbeer Ahedi
- Institute for Medical Research, University of Tasmania Menzies, Hobart, Tasmania, Australia
| | - Vahid Arbabi
- Department of Orthopedics, UMC Utrecht, Utrecht, Netherlands
- Orthopaedic-Biomechanics Research Group, Department of Mechanical Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran
| | - Nigel K Arden
- Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford Nuffield, Oxford, Oxfordshire, UK
| | | | - Cindy G Boer
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Flavia Cicuttini
- Department of Epidemiology and Preventative Medicine, Monash University, Melbourne, Victoria, Australia
| | - Timothy F Cootes
- Centre for Imaging Sciences, The University of Manchester, Manchester, UK
| | - Kay Crossley
- La Trobe Sport and Exercise Medicine Research Centre, La Trobe University School of Allied Health Human Services and Sport, Melbourne, Victoria, Australia
| | - David Felson
- Boston University School of Medicine, Boston, Massachusetts, USA
| | - Willem Paul Gielis
- Department of Orthopedics, UMC Utrecht, Utrecht, Netherlands
- Department of Radiology, UMC Utrecht, Utrecht, Netherlands
| | - Joshua Heerey
- La Trobe Sport and Exercise Medicine Research Centre, La Trobe University School of Allied Health Human Services and Sport, Melbourne, Victoria, Australia
| | - Graeme Jones
- Institute for Medical Research, University of Tasmania Menzies, Hobart, Tasmania, Australia
| | - Stefan Kluzek
- Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford Nuffield, Oxford, Oxfordshire, UK
| | - Nancy E Lane
- Department of Medicine, University of California Davis School of Medicine, Sacramento, California, USA
| | - Claudia Lindner
- Centre for Imaging Sciences, The University of Manchester, Manchester, UK
| | - John A Lynch
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - J Van Meurs
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Andrea B Mosler
- La Trobe Sport and Exercise Medicine Research Centre, La Trobe University School of Allied Health Human Services and Sport, Melbourne, Victoria, Australia
| | - Amanda E Nelson
- Thurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - M Nevitt
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Edwin Oei
- Department of Radiology & Nuclear Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Jos Runhaar
- Department of General Practice, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Jinchi Tang
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
| | - Harrie Weinans
- Department of Orthopedics, UMC Utrecht, Utrecht, Netherlands
- Department of Biomechanical Engineering, TU Delft, Delft, Zuid-Holland, Netherlands
| | - Rintje Agricola
- Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
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14
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Srivastava K, Jacobs TS, Ostendorp S, Jonker D, Brzesowsky FA, Susarrey-Arce A, Gardeniers H, Wilde G, Weckhuysen BM, van den Berg A, van der Stam W, Odijk M. Alternative nano-lithographic tools for shell-isolated nanoparticle enhanced Raman spectroscopy substrates. Nanoscale 2024; 16:7582-7593. [PMID: 38506088 PMCID: PMC11025715 DOI: 10.1039/d4nr00428k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/13/2024] [Indexed: 03/21/2024]
Abstract
Chemically synthesized metal nanoparticles (MNPs) have been widely used as surface-enhanced Raman spectroscopy (SERS) substrates for monitoring catalytic reactions. In some applications, however, the SERS MNPs, besides being plasmonically active, can also be catalytically active and result in Raman signals from undesired side products. The MNPs are typically insulated with a thin (∼3 nm), in principle pin-hole-free shell to prevent this. This approach, which is known as shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), offers many advantages, such as better thermal and chemical stability of the plasmonic nanoparticle. However, having both a high enhancement factor and ensuring that the shell is pin-hole-free is challenging because there is a trade-off between the two when considering the shell thickness. So far in the literature, shell insulation has been successfully applied only to chemically synthesized MNPs. In this work, we alternatively study different combinations of chemical synthesis (bottom-up) and lithographic (top-down) routes to obtain shell-isolated plasmonic nanostructures that offer chemical sensing capabilities. The three approaches we study in this work include (1) chemically synthesized MNPs + chemical shell, (2) lithographic substrate + chemical shell, and (3) lithographic substrate + atomic layer deposition (ALD) shell. We find that ALD allows us to fabricate controllable and reproducible pin-hole-free shells. We showcase the ability to fabricate lithographic SHINER substrates which report an enhancement factor of 7.5 × 103 ± 17% for our gold nanodot substrates coated with a 2.8 nm aluminium oxide shell. Lastly, by introducing a gold etchant solution to our fabricated SHINER substrate, we verified that the shells fabricated with ALD are truly pin-hole-free.
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Affiliation(s)
- Ketki Srivastava
- BIOS Lab on Chip Group, Mesa+ Institute of Nanotechnology, University of Twente, The Netherlands.
| | - Thimo S Jacobs
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, The Netherlands.
| | | | - Dirk Jonker
- Mesoscale Chemical Systems, Mesa+ Institute of Nanotechnology, University of Twente, The Netherlands
| | - Floor A Brzesowsky
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, The Netherlands.
| | - Arturo Susarrey-Arce
- Mesoscale Chemical Systems, Mesa+ Institute of Nanotechnology, University of Twente, The Netherlands
| | - Han Gardeniers
- Mesoscale Chemical Systems, Mesa+ Institute of Nanotechnology, University of Twente, The Netherlands
| | - Gerhard Wilde
- Institute of Materials Physics, University of Münster, Germany
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, The Netherlands.
| | - Albert van den Berg
- BIOS Lab on Chip Group, Mesa+ Institute of Nanotechnology, University of Twente, The Netherlands.
| | - Ward van der Stam
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, The Netherlands.
| | - Mathieu Odijk
- BIOS Lab on Chip Group, Mesa+ Institute of Nanotechnology, University of Twente, The Netherlands.
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15
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Heidary A, Ghaffarian Niasar M, Popov M. The principle of magnetic flux switch. Sci Rep 2024; 14:8990. [PMID: 38637610 PMCID: PMC11026425 DOI: 10.1038/s41598-024-59721-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 04/15/2024] [Indexed: 04/20/2024] Open
Abstract
This paper introduces an innovative Magnetic Switch (MFS) designed to control and alter magnetic flux within energy system components, offering an alternative to conventional power electronic devices. The MFS comprises a low-current control coil, a control core, and a high-density magnetic flux-carrying main core combined with a main coil energy system. In this novel magnetic configuration, when a low-power current excites the control coil, the magnetic flux in the main core (supplied by the main coil) decreases to nearly zero. Conversely, when the control coil disconnects from the power source, the magnetic flux within the main core attains its maximum value. This operation positions the MFS as a groundbreaking concept within magnetic-based energy systems, akin to transistors in power electronics. The main outcomes of the MFS concept are that it can vary the magnetic flux of the main core in the large range, and it is a fast magnetic switch with a simple and low power loss control circuit and an independent control coil from the main coil. Analytical studies thoroughly elucidate the performance and advantages of this proposed magnetic switch, substantiated by Finite Element Method simulations and experimental prototype outcomes.
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Affiliation(s)
- Amir Heidary
- Faculty of EEMCS, Delft University of Technology, Mekelweg 4, 2628CD, Delft, The Netherlands.
| | | | - Marjan Popov
- Faculty of EEMCS, Delft University of Technology, Mekelweg 4, 2628CD, Delft, The Netherlands
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16
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den Hollander LS, IJzerman AP, Heitman LH. Pharmacological characterization of allosteric modulators: A case for chemokine receptors. Med Res Rev 2024. [PMID: 38634664 DOI: 10.1002/med.22043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
Chemokine receptors are relevant targets for a multitude of immunological diseases, but drug attrition for these receptors is remarkably high. While many drug discovery programs have been pursued, most prospective drugs failed in the follow-up studies due to clinical inefficacy, and hence there is a clear need for alternative approaches. Allosteric modulators of receptor function represent an excellent opportunity for novel drugs, as they modulate receptor activation in a controlled manner and display increased selectivity, and their pharmacological profile can be insurmountable. Here, we discuss allosteric ligands and their pharmacological characterization for modulation of chemokine receptors. Ligands are included if (1) they show clear signs of allosteric modulation in vitro and (2) display evidence of binding in a topologically distinct manner compared to endogenous chemokines. We discuss how allosteric ligands affect binding of orthosteric (endogenous) ligands in terms of affinity as well as binding kinetics in radioligand binding assays. Moreover, their effects on signaling events in functional assays and how their binding site can be elucidated are specified. We substantiate this with examples of published allosteric ligands targeting chemokine receptors and hypothetical graphs of pharmacological behavior. This review should serve as an effective starting point for setting up assays for characterizing allosteric ligands to develop safer and more efficacious drugs for chemokine receptors and, ultimately, other G protein-coupled receptors.
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Affiliation(s)
- Lisa S den Hollander
- Leiden Academic Centre for Drug Research, Division of Drug Discovery and Safety, Leiden, The Netherlands
| | - Adriaan P IJzerman
- Leiden Academic Centre for Drug Research, Division of Drug Discovery and Safety, Leiden, The Netherlands
| | - Laura H Heitman
- Leiden Academic Centre for Drug Research, Division of Drug Discovery and Safety, Leiden, The Netherlands
- Oncode Institute, Leiden, The Netherlands
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17
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Ten Klooster S, Boerkamp VJP, Hennebelle M, van Duynhoven JPM, Schroën K, Berton-Carabin CC. Unravelling the effect of droplet size on lipid oxidation in O/W emulsions by using microfluidics. Sci Rep 2024; 14:8895. [PMID: 38632267 PMCID: PMC11024159 DOI: 10.1038/s41598-024-59170-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
Lipid oxidation in emulsions is hypothesised to increase with decreasing droplet size, as this increases the specific oil-water interfacial area, where lipid oxidation is expected to be initiated. In literature, however, contradictory results have been reported, which can be caused by confounding factors such as the oil droplet polydispersity and the distribution of components between the available phases. In this work, monodisperse surfactant-stabilised emulsions with highly controlled droplet sizes of 4.7, 9.1, and 26 µm were produced by microfluidic emulsification. We show that lipid oxidation increases with decreasing droplet size, which we ascribe to the increased contact area between lipids and continuous phase prooxidants. Besides, a significant amount of oxygen was consumed by oxidation of the surfactant itself (Tween 20), an effect that also increased with decreasing droplet size. These insights substantiate the importance of controlling droplet size for improving the oxidative stability of emulsions.
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Affiliation(s)
- Sten Ten Klooster
- Laboratory of Food Process Engineering, Wageningen University and Research, Wageningen, the Netherlands.
| | - Vincent J P Boerkamp
- Laboratory of Food Chemistry, Wageningen University and Research, Wageningen, the Netherlands
| | - Marie Hennebelle
- Laboratory of Food Chemistry, Wageningen University and Research, Wageningen, the Netherlands
| | - John P M van Duynhoven
- Unilever Food Innovation Centre, Wageningen, the Netherlands
- Laboratory of Biophysics, Wageningen University and Research, Wageningen, the Netherlands
| | - Karin Schroën
- Laboratory of Food Process Engineering, Wageningen University and Research, Wageningen, the Netherlands
| | - Claire C Berton-Carabin
- Laboratory of Food Process Engineering, Wageningen University and Research, Wageningen, the Netherlands
- INRAE, UR BIA, 44000, Nantes, France
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18
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Nieuwland C, Almacellas D, Veldhuizen MM, de Azevedo Santos L, Poater J, Fonseca Guerra C. Multiple hydrogen-bonded dimers: are only the frontier atoms relevant? Phys Chem Chem Phys 2024; 26:11306-11310. [PMID: 38054332 PMCID: PMC11022277 DOI: 10.1039/d3cp05244c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 11/29/2023] [Indexed: 12/07/2023]
Abstract
Non-frontier atom exchanges in hydrogen-bonded aromatic dimers can induce significant interaction energy changes (up to 6.5 kcal mol-1). Our quantum-chemical analyses reveal that the relative hydrogen-bond strengths of N-edited guanine-cytosine base pair isosteres, which cannot be explained from the frontier atoms, follow from the charge accumulation in the monomers.
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Affiliation(s)
- Celine Nieuwland
- Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, Amsterdam 1081 HZ, The Netherlands.
| | - David Almacellas
- Departament de Química Inorgànica i Orgànica & Institut de Química Teòrica i Computacional, Universitat de Barcelona, Martí i Franquès 1-11, Barcelona 08028, Catalonia, Spain
| | - Mac M Veldhuizen
- Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, Amsterdam 1081 HZ, The Netherlands.
| | - Lucas de Azevedo Santos
- Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, Amsterdam 1081 HZ, The Netherlands.
| | - Jordi Poater
- Departament de Química Inorgànica i Orgànica & Institut de Química Teòrica i Computacional, Universitat de Barcelona, Martí i Franquès 1-11, Barcelona 08028, Catalonia, Spain
- ICREA, Pg. Lluís Companys 23, Barcelona 08010, Spain
| | - Célia Fonseca Guerra
- Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, Amsterdam 1081 HZ, The Netherlands.
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19
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Felius RAW, Wouda NC, Geerars M, Bruijn SM, van Dieën JH, Punt M. Beyond gait speed: exploring the added value of Inertial Measurement Unit-based measurements of gait in the estimation of the walking ability in daily life. BMC Neurol 2024; 24:129. [PMID: 38627674 PMCID: PMC11022465 DOI: 10.1186/s12883-024-03632-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 04/09/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Gait speed is often used to estimate the walking ability in daily life in people after stroke. While measuring gait with inertial measurement units (IMUs) during clinical assessment yields additional information, it remains unclear if this information can improve the estimation of the walking ability in daily life beyond gait speed. OBJECTIVE We evaluated the additive value of IMU-based gait features over a simple gait-speed measurement in the estimation of walking ability in people after stroke. METHODS Longitudinal data during clinical stroke rehabilitation were collected. The assessment consisted of two parts and was administered every three weeks. In the first part, participants walked for two minutes (2MWT) on a fourteen-meter path with three IMUs attached to low back and feet, from which multiple gait features, including gait speed, were calculated. The dimensionality of the corresponding gait features was reduced with a principal component analysis. In the second part, gait was measured for two consecutive days using one ankle-mounted IMU. Next, three measures of walking ability in daily life were calculated, including the number of steps per day, and the average and maximal gait speed. A gait-speed-only Linear Mixed Model was used to estimate the association between gait speed and each of the three measures of walking ability. Next, the principal components (PC), derived from the 2MWT, were added to the gait-speed-only model to evaluate if they were confounders or effect modifiers. RESULTS Eighty-one participants were measured during rehabilitation, resulting in 198 2MWTs and 135 corresponding walking-performance measurements. 106 Gait features were reduced to nine PCs with 85.1% explained variance. The linear mixed models demonstrated that gait speed was weakly associated with the average and maximum gait speed in daily life and moderately associated with the number of steps per day. The PCs did not considerably improve the outcomes in comparison to the gait speed only models. CONCLUSIONS Gait in people after stroke assessed in a clinical setting with IMUs differs from their walking ability in daily life. More research is needed to determine whether these discrepancies also occur in non-laboratory settings, and to identify additional non-gait factors that influence walking ability in daily life.
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Affiliation(s)
- R A W Felius
- Research group lifestyle and health, Utrecht University of Applied Sciences, Utrecht, The Netherlands.
- Department of Human Movement Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
| | - N C Wouda
- Center of Excellence for Rehabilitation Medicine, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University and De Hoogstraat Rehabilitation, Utrecht, the Netherlands
- Department of neurorehabilitation, De Hoogstraat Rehabilitation, Utrecht, The Netherlands
| | - M Geerars
- Physiotherapy Department Neurology, Axioncontinu, Rehabilitation Center de Parkgraaf, Utrecht, The Netherlands
| | - S M Bruijn
- Department of Human Movement Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - J H van Dieën
- Department of Human Movement Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - M Punt
- Research group lifestyle and health, Utrecht University of Applied Sciences, Utrecht, The Netherlands
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20
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Wu X, Bickelhaupt FM, Xie J. Solvent-induced dual nucleophiles and the α-effect in the S N2 versus E2 competition. Phys Chem Chem Phys 2024; 26:11320-11330. [PMID: 38536735 PMCID: PMC11022550 DOI: 10.1039/d4cp00671b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/14/2024] [Indexed: 04/18/2024]
Abstract
We have quantum chemically investigated how microsolvation affects the various E2 and SN2 pathways, their mutual competition, and the α-effect of the model reaction system HOO-(H2O)n + CH3CH2Cl, at the CCSD(T) level. Interestingly, we identify the dual nature of the α-nucleophile HOO- which, upon solvation, is in equilibrium with HO-. This solvent-induced dual appearance gives rise to a rich network of competing reaction channels. Among both nucleophiles, SN2 is always favored over E2, and this preference increases upon increasing microsolvation. Furthermore, we found a pronounced α-effect, not only for SN2 substitution but also for E2 elimination, i.e., HOO- is more reactive than HO- in both cases. Our activation strain and quantitative molecular orbital analyses reveal the physical mechanisms behind the various computed trends. In particular, we demonstrate that two recently proposed criteria, required for solvent-free nucleophiles to display the α-effect, must also be satisfied by microsolvated HOO-(H2O)n nucleophiles.
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Affiliation(s)
- Xiangyu Wu
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
| | - F Matthias Bickelhaupt
- Department of Chemistry and Pharmaceutical Sciences, AIMMS, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands.
- Institute for Molecules and Materials (IMM), Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
- Department of Chemical Sciences, University of Johannesburg, Auckland Park, Johannesburg 2006, South Africa
| | - Jing Xie
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
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21
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Wensink FJ, Smink CE, Stevenson BC, Steele RP, Bakker JM, Armentrout PB. IR spectroscopic characterization of [M,C,2H] + (M = Ru and Rh) products formed by reacting 4d transition metal cations with oxirane: Spectroscopic evidence for multireference character in RhCH 2. Phys Chem Chem Phys 2024; 26:11445-11458. [PMID: 38572552 PMCID: PMC11022548 DOI: 10.1039/d4cp00012a] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 03/13/2024] [Indexed: 04/05/2024]
Abstract
A combination of infrared multiple-photon dissociation (IRMPD) action spectroscopy and quantum chemical calculations was employed to investigate the [M,C,2H]+ (M = Ru and Rh) species. These ions were formed by reacting laser ablated M+ ions with oxirane (ethylene oxide, c-C2H4O) in a room-temperature ion trap. IRMPD spectra for the Ru species exhibit one major band and two side bands, whereas spectra for the Rh species contain more distinct bands. Comparison with density functional theory (DFT), coupled-cluster (CCSD), and equation-of-motion spin-flip CCSD (EOM-SF-CCSD) calculations allows assignment of the [M,C,2H]+ structures. For the spectrum of [Ru,C,2H]+, a combination of HRuCH+ and RuCH2+ structures reproduces the observed spectrum at all levels of theory. The well-resolved spectrum of [Rh,C,2H]+ could not be assigned unambiguously to any calculated structure using DFT approaches. The EOM-SF-CCSD calculations showed that the ground-state surface has multireference electronic character, and symmetric carbenes in both the 1A1 and 3A2 states are needed to reproduce the observed spectrum.
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Affiliation(s)
- Frank J Wensink
- Radboud University, Institute for Molecules and Materials, HFML-FELIX, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands.
| | - Corry E Smink
- Radboud University, Institute for Molecules and Materials, HFML-FELIX, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands.
| | - Brandon C Stevenson
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.
| | - Ryan P Steele
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.
| | - Joost M Bakker
- Radboud University, Institute for Molecules and Materials, HFML-FELIX, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands.
| | - P B Armentrout
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.
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22
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van der Ham S, Agudo-Canalejo J, Vutukuri HR. Role of Shape in Particle-Lipid Membrane Interactions: From Surfing to Full Engulfment. ACS Nano 2024; 18:10407-10416. [PMID: 38513125 PMCID: PMC11025115 DOI: 10.1021/acsnano.3c11106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/08/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
Understanding and manipulating the interactions between foreign bodies and cell membranes during endo- and phagocytosis is of paramount importance, not only for the fate of living cells but also for numerous biomedical applications. This study aims to elucidate the role of variables such as anisotropic particle shape, curvature, orientation, membrane tension, and adhesive strength in this essential process using a minimal experimental biomimetic system comprising giant unilamellar vesicles and rod-like particles with different curvatures and aspect ratios. We find that the particle wrapping process is dictated by the balance between the elastic free energy penalty and adhesion free energy gain, leading to two distinct engulfment pathways, tip-first and side-first, emphasizing the significance of the particle orientation in determining the pathway. Moreover, our experimental results are consistent with theoretical predictions in a state diagram, showcasing how to control the wrapping pathway from surfing to partial to complete wrapping by the interplay between membrane tension and adhesive strength. At moderate particle concentrations, we observed the formation of rod clusters, which exhibited cooperative and sequential wrapping. Our study contributes to a comprehensive understanding of the mechanistic intricacies of endocytosis by highlighting how the interplay between the anisotropic particle shape, curvature, orientation, membrane tension, and adhesive strength can influence the engulfment pathway.
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Affiliation(s)
- Stijn van der Ham
- Active
Soft Matter and Bio-inspired Materials Lab, Faculty of Science and
Technology, MESA+ Institute, University
of Twente, 7500 AE Enschede, The Netherlands
| | - Jaime Agudo-Canalejo
- Department
of Living Matter Physics, Max Planck Institute
for Dynamics and Self-Organization, Göttingen, D-37077, Germany
- Department
of Physics and Astronomy, University College
London, London WC1E 6BT, United Kingdom
| | - Hanumantha Rao Vutukuri
- Active
Soft Matter and Bio-inspired Materials Lab, Faculty of Science and
Technology, MESA+ Institute, University
of Twente, 7500 AE Enschede, The Netherlands
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23
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Verra SE, Poelman MP, Mudd AL, de Wit J, Kamphuis CBM. Trapped in vicious cycles: unraveling the health experiences and needs of adults living with socioeconomic insecurity. Arch Public Health 2024; 82:51. [PMID: 38627821 PMCID: PMC11020895 DOI: 10.1186/s13690-024-01281-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/05/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND This study explores the role of health in daily life and needs of Dutch adults (aged 25-49) experiencing one or more forms of socioeconomic insecurity stemming from their financial, housing, or employment situations. METHODS 28 in-depth, semi-structured interviews were conducted in the Netherlands between October 2022 and February 2023. The interview guide included questions on participants' socioeconomic situation, the role of health in their daily lives, their health-related and broader needs. Data was interpreted using inductive reflexive thematic analysis. An advisory board consisting of adults with lived experiences of socioeconomic insecurity were consulted at multiple stages of the study (recruitment, interview guide, interpretation of results). RESULTS Housing insecurity was widely experienced by participants. When asked about their financial situation, most participants expressed having no issues getting by, but later on, described vigorous efforts to minimize expenses. Participants' narratives revealed four key themes in relation to the role of health in daily life and associated needs. Firstly, socioeconomic insecurity led to diminished control over life, which led to the disruption of routines. Secondly, experiencing socioeconomic insecurity compelled participants to prioritize stress reduction and mental health improvement through calming yet potentially damaging coping mechanisms. Thirdly, those who experienced little opportunity for improvement in their already long-lasting socioeconomic insecurity shared a sense of stagnation in life, which co-occurred with stagnation in unhealthy routines and diminished well-being. Fourthly, participants expressed the need for someone to speak with. This support may help participants regain control over their lives, identify opportunities for more socioeconomic security, and focus on increased health and well-being. CONCLUSIONS This study sheds light on the challenges individuals face in dealing with socioeconomic insecurity, how it may affect their health, and their needs. Gaining perspective for improved socioeconomic security and having accessible professional support tailored to self-identified needs could have health-promoting effects for individuals living with socioeconomic insecurity. It is recommended to integrate professional support and assistance regarding social security into health policies and interventions. In future research, measures of financial strain should be adjusted to include the effort needed to get by.
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Affiliation(s)
- Sanne E Verra
- Department of Interdisciplinary Social Science, Utrecht University, Padualaan 14, 3584CH, 3584 CH, Utrecht, the Netherlands.
| | - Maartje P Poelman
- Chair group Consumption and Healthy Lifestyles, Wageningen University & Research, Hollandseweg 1, 6706 KN, Wageningen, the Netherlands
| | - Andrea L Mudd
- Department of Interdisciplinary Social Science, Utrecht University, Padualaan 14, 3584CH, 3584 CH, Utrecht, the Netherlands
| | - John de Wit
- Department of Interdisciplinary Social Science, Utrecht University, Padualaan 14, 3584CH, 3584 CH, Utrecht, the Netherlands
| | - Carlijn B M Kamphuis
- Department of Interdisciplinary Social Science, Utrecht University, Padualaan 14, 3584CH, 3584 CH, Utrecht, the Netherlands
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24
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Wang F, Kramer TS, Yan B, Zhu L, Zhu Y, Heeres A, Ciolca D, Jan Heeres H, He S. Enhanced Bio-BTX Formation by Catalytic Pyrolysis of Glycerol with In Situ Produced Toluene as the Cofeed. ACS Sustain Chem Eng 2024; 12:5731-5737. [PMID: 38638549 PMCID: PMC11022236 DOI: 10.1021/acssuschemeng.4c00451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/20/2024]
Abstract
The catalytic coconversion of glycerol and toluene (93/7 wt %) over a technical H-ZSM-5/Al2O3 (60-40 wt %) catalyst was studied, aiming for enhanced production of biobased benzene, toluene, and xylenes (bio-BTX). When using glycerol/toluene cofeed with a mass ratio of 93/7 wt %, a peak BTX carbon yield of 29.7 ± 1.1 C.% (at time on stream (TOS) of 1.5-2.5 h), and an overall BTX carbon yield of 28.7 C.% (during TOS of 8.5 h) were obtained, which are considerably higher than those (19.1 ± 0.4 C.% and 11.0 C.%) for glycerol alone. Synergetic effects when cofeeding toluene on the peak and overall BTX carbon yields were observed and quantified, showing a relative increase of 3.1% and 30.0% for the peak and overall BTX carbon yield (based on the feedstock). These findings indicate that the strategy of cofeeding in situ produced toluene for the conversion of glycerol to aromatics has potential to increase BTX yields. In addition, BTX production on the catalyst (based on the fresh catalyst during the first run for TOS of 8.5 h and without regeneration) is significantly improved to 0.547 ton ton-1catalyst (excluding the 76% of toluene product that is 0.595 ton ton-1catalyst for the recycle in the cofeed) for glycerol/toluene cofeed, which was 0.426 ton ton-1catalyst for glycerol alone. In particular, this self-sufficient toluene product recycling strategy is advantageous for the production and selectivity (relative increase of 84.4% and 43.5% during TOS of 8.5 h) of biobased xylenes.
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Affiliation(s)
- Fukang Wang
- Joint
International Research Laboratory of Circular Carbon, Nanjing Tech University, 211816 Nanjing, P. R. China
| | - Thomas Sjouke Kramer
- Green
Chemical Reaction Engineering, Engineering and Technology Institute
Groningen, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Bin Yan
- Joint
International Research Laboratory of Circular Carbon, Nanjing Tech University, 211816 Nanjing, P. R. China
| | - Lin Zhu
- Joint
International Research Laboratory of Circular Carbon, Nanjing Tech University, 211816 Nanjing, P. R. China
| | - Yuezhao Zhu
- Joint
International Research Laboratory of Circular Carbon, Nanjing Tech University, 211816 Nanjing, P. R. China
| | - Andre Heeres
- Hanze
University of Applied Sciences, 9747 AS Groningen, The Netherlands
| | | | - Hero Jan Heeres
- Green
Chemical Reaction Engineering, Engineering and Technology Institute
Groningen, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Songbo He
- Joint
International Research Laboratory of Circular Carbon, Nanjing Tech University, 211816 Nanjing, P. R. China
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25
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Goyal P, van Leeuwen JL, Muijres FT. Bumblebees compensate for the adverse effects of sidewind during visually guided landings. J Exp Biol 2024; 227:jeb245432. [PMID: 38506223 DOI: 10.1242/jeb.245432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/26/2024] [Indexed: 03/21/2024]
Abstract
Flying animals often encounter winds during visually guided landings. However, how winds affect their flight control strategy during landing is unknown. Here, we investigated how sidewind affects the landing performance and sensorimotor control of foraging bumblebees (Bombus terrestris). We trained bumblebees to forage in a wind tunnel, and used high-speed stereoscopic videography to record 19,421 landing maneuvers in six sidewind speeds (0 to 3.4 m s-1), which correspond to winds encountered in nature. Bumblebees landed less often in higher windspeeds, but the landing durations from free flight were not increased by wind. By testing how bumblebees adjusted their landing control to compensate for adverse effects of sidewind on landing, we showed that the landing strategy in sidewind resembled that in still air, but with important adaptations. Bumblebees landing in a sidewind tended to drift downwind, which they controlled for by performing more hover maneuvers. Surprisingly, the increased hover prevalence did not increase the duration of free-flight landing maneuvers, as these bumblebees flew faster towards the landing platform outside the hover phases. Hence, by alternating these two flight modes along their flight path, free-flying bumblebees negated the adverse effects of high windspeeds on landing duration. Using control theory, we hypothesize that bumblebees achieve this by integrating a combination of direct aerodynamic feedback and a wind-mediated mechanosensory feedback control, with their vision-based sensorimotor control loop. The revealed landing strategy may be commonly used by insects landing in windy conditions, and may inspire the development of landing control strategies onboard autonomously flying robots.
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Affiliation(s)
- Pulkit Goyal
- Experimental Zoology Group, Wageningen University and Research, 6708 WD Wageningen, The Netherlands
| | - Johan L van Leeuwen
- Experimental Zoology Group, Wageningen University and Research, 6708 WD Wageningen, The Netherlands
| | - Florian T Muijres
- Experimental Zoology Group, Wageningen University and Research, 6708 WD Wageningen, The Netherlands
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26
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Wu LY, Wijesekara Y, Piedade GJ, Pappas N, Brussaard CPD, Dutilh BE. Benchmarking bioinformatic virus identification tools using real-world metagenomic data across biomes. Genome Biol 2024; 25:97. [PMID: 38622738 PMCID: PMC11020464 DOI: 10.1186/s13059-024-03236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 04/01/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND As most viruses remain uncultivated, metagenomics is currently the main method for virus discovery. Detecting viruses in metagenomic data is not trivial. In the past few years, many bioinformatic virus identification tools have been developed for this task, making it challenging to choose the right tools, parameters, and cutoffs. As all these tools measure different biological signals, and use different algorithms and training and reference databases, it is imperative to conduct an independent benchmarking to give users objective guidance. RESULTS We compare the performance of nine state-of-the-art virus identification tools in thirteen modes on eight paired viral and microbial datasets from three distinct biomes, including a new complex dataset from Antarctic coastal waters. The tools have highly variable true positive rates (0-97%) and false positive rates (0-30%). PPR-Meta best distinguishes viral from microbial contigs, followed by DeepVirFinder, VirSorter2, and VIBRANT. Different tools identify different subsets of the benchmarking data and all tools, except for Sourmash, find unique viral contigs. Performance of tools improved with adjusted parameter cutoffs, indicating that adjustment of parameter cutoffs before usage should be considered. CONCLUSIONS Together, our independent benchmarking facilitates selecting choices of bioinformatic virus identification tools and gives suggestions for parameter adjustments to viromics researchers.
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Affiliation(s)
- Ling-Yi Wu
- Theoretical Biology and Bioinformatics, Science4Life, Utrecht University, Padualaan 8, Utrecht, 3584 CH, The Netherlands
| | - Yasas Wijesekara
- Institute of Bioinformatics, University Medicine Greifswald, Felix Hausdorff Str. 8, 17475, Greifswald, Germany
| | - Gonçalo J Piedade
- Department Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, PO Box 59, Texel, 1790 AB, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Nikolaos Pappas
- Theoretical Biology and Bioinformatics, Science4Life, Utrecht University, Padualaan 8, Utrecht, 3584 CH, The Netherlands
| | - Corina P D Brussaard
- Department Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, PO Box 59, Texel, 1790 AB, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Bas E Dutilh
- Theoretical Biology and Bioinformatics, Science4Life, Utrecht University, Padualaan 8, Utrecht, 3584 CH, The Netherlands.
- Institute of Biodiversity, Faculty of Biological Sciences, Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, 07743, Jena, Germany.
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27
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van der Heijden O, Park S, Vos RE, Eggebeen JJJ, Koper MTM. Tafel Slope Plot as a Tool to Analyze Electrocatalytic Reactions. ACS Energy Lett 2024; 9:1871-1879. [PMID: 38633990 PMCID: PMC11019648 DOI: 10.1021/acsenergylett.4c00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/22/2024] [Accepted: 03/28/2024] [Indexed: 04/19/2024]
Abstract
Kinetic and nonkinetic contributions to the Tafel slope value can be separated using a Tafel slope plot, where a constant Tafel slope region indicates kinetic meaningfulness. Here, we compare the Tafel slope values obtained from linear sweep voltammetry to the values obtained from chronoamperometry and impedance spectroscopy, and we apply the Tafel slope plot to various electrocatalytic reactions. We show that similar Tafel slope values are observed from the different techniques under high-mass-transport conditions for the oxygen evolution reaction on NiFeOOH in 0.2 M KOH. However, for the alkaline hydrogen evolution reaction and the CO2 reduction reaction, no horizontal Tafel slope regions were observed. In contrast, we obtained the expected Tafel slope of 30 mV/dec for the HER on Pt in 1 M HClO4. We argue that widespread application of the Tafel slope plot, or similar numerical differentiation techniques, would result in an improved comparison of kinetic data for many electrocatalytic reactions when the traditional Tafel plot analysis is ambiguous.
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Affiliation(s)
- Onno van der Heijden
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands
| | - Sunghak Park
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands
| | - Rafaël E. Vos
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands
| | - Jordy J. J. Eggebeen
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands
| | - Marc T. M. Koper
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands
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28
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Schulpen JJM, Lam CHX, Dawley RA, Li R, Jin L, Ma T, Kessels WMM, Koester SJ, Bol AA. Nb Doping and Alloying of 2D WS 2 by Atomic Layer Deposition for 2D Transition Metal Dichalcogenide Transistors and HER Electrocatalysts. ACS Appl Nano Mater 2024; 7:7395-7407. [PMID: 38633297 PMCID: PMC11019465 DOI: 10.1021/acsanm.4c00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/06/2024] [Accepted: 03/14/2024] [Indexed: 04/19/2024]
Abstract
We utilize plasma-enhanced atomic layer deposition to synthesize two-dimensional Nb-doped WS2 and NbxW1-xSy alloys to expand the range of properties and improve the performance of 2D transition metal dichalcogenides for electronics and catalysis. Using a supercycle deposition process, films are prepared with compositions spanning the range from WS2 to NbS3. While the W-rich films form crystalline disulfides, the Nb-rich films form amorphous trisulfides. Through tuning the composition of the films, the electrical resistivity is reduced by 4 orders of magnitude compared to pure ALD-grown WS2. To produce Nb-doped WS2 films, we developed a separate ABC-type supercycle process in which a W precursor pulse precedes the Nb precursor pulse, thereby reducing the minimum Nb content of the film by a factor of 3 while maintaining a uniform distribution of the Nb dopant. Initial results are presented on the electrical and electrocatalytic performances of the films. Promisingly, the NbxW1-xSy films of 10 nm thickness and composition x ≈ 0.08 are p-type semiconductors and have a low contact resistivity of (8 ± 1) × 102 Ω cm to Pd/Au contacts, demonstrating their potential use in contact engineering of 2D TMD transistors.
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Affiliation(s)
- Jeff J.
P. M. Schulpen
- Department
of Applied Physics, Eindhoven University
of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Cindy H. X. Lam
- Department
of Applied Physics, Eindhoven University
of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Rebecca A. Dawley
- Department
of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan 48109, United States
| | - Ruixue Li
- Department
of Electrical and Computer Engineering, University of Minnesota, 200 Union Street Se, Minneapolis, Minnesota 55455, United States
| | - Lun Jin
- Department
of Electrical and Computer Engineering, University of Minnesota, 200 Union Street Se, Minneapolis, Minnesota 55455, United States
| | - Tao Ma
- Michigan
Center for Materials Characterization, University
of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Wilhelmus M. M. Kessels
- Department
of Applied Physics, Eindhoven University
of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Steven J. Koester
- Department
of Electrical and Computer Engineering, University of Minnesota, 200 Union Street Se, Minneapolis, Minnesota 55455, United States
| | - Ageeth A. Bol
- Department
of Applied Physics, Eindhoven University
of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
- Department
of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan 48109, United States
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Maslin M, Paix B, van der Windt N, Ambo-Rappe R, Debitus C, Gaertner-Mazouni N, Ho R, de Voogd NJ. Prokaryotic communities of the French Polynesian sponge Dactylospongia metachromia display a site-specific and stable diversity during an aquaculture trial. Antonie Van Leeuwenhoek 2024; 117:65. [PMID: 38602593 PMCID: PMC11008079 DOI: 10.1007/s10482-024-01962-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 03/28/2024] [Indexed: 04/12/2024]
Abstract
Dynamics of microbiomes through time are fundamental regarding survival and resilience of their hosts when facing environmental alterations. As for marine species with commercial applications, such as marine sponges, assessing the temporal change of prokaryotic communities allows us to better consider the adaptation of sponges to aquaculture designs. The present study aims to investigate the factors shaping the microbiome of the sponge Dactylospongia metachromia, in a context of aquaculture development in French Polynesia, Rangiroa, Tuamotu archipelago. A temporal approach targeting explants collected during farming trials revealed a relative high stability of the prokaryotic diversity, meanwhile a complementary biogeographical study confirmed a spatial specificity amongst samples at different longitudinal scales. Results from this additional spatial analysis confirmed that differences in prokaryotic communities might first be explained by environmental changes (mainly temperature and salinity), while no significant effect of the host phylogeny was observed. The core community of D. metachromia is thus characterized by a high spatiotemporal constancy, which is a good prospect for the sustainable exploitation of this species towards drug development. Indeed, a microbiome stability across locations and throughout the farming process, as evidenced by our results, should go against a negative influence of sponge translocation during in situ aquaculture.
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Affiliation(s)
- Mathilde Maslin
- Univ Polynesie Française, Ifremer, ILM, IRD, EIO UMR 241, Tahiti, French Polynesia
| | - Benoît Paix
- Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, the Netherlands.
| | - Niels van der Windt
- Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, the Netherlands
- Institute of Environmental Sciences (CML), Leiden University, PO Box 9518, 2300 RA, Leiden, the Netherlands
| | - Rohani Ambo-Rappe
- Faculty of Marine Science and Fisheries, Department of Marine Science, Hasanuddin University, Makassar, Indonesia
| | - Cécile Debitus
- IRD, Univ Brest, CNRS, Ifremer, LEMAR, 29280, Plouzané, France
| | | | - Raimana Ho
- Univ Polynesie Française, Ifremer, ILM, IRD, EIO UMR 241, Tahiti, French Polynesia
| | - Nicole J de Voogd
- Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, the Netherlands.
- Institute of Biology (IBL), Leiden University, 2333 BE, PO Box 9505, Leiden, the Netherlands.
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30
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Das S, Buschermöhle J, Zant DW, Schmidtmann M, van der Vlugt JI. Selective Manipulation of Well-Defined Trinuclear Pd(II)-Complexes. Chemistry 2024; 30:e202400044. [PMID: 38334955 DOI: 10.1002/chem.202400044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/09/2024] [Accepted: 02/09/2024] [Indexed: 02/10/2024]
Abstract
Several strategies are available to design well-defined multimetallic molecular entities bearing functional ligands. Substoichiometric exchange reactions in the coordination sphere of pre-existing multinuclear precursors are relatively underexploited in this context. Palladium(II) acetate is not a mononuclear compound in the solid state but rather exists as a trimer, i. e. [Pd3(OAc)6]. Although this material is ubiquitously used to synthesize mononuclear Pd species, it may principally also lend itself to selective exchange of some of the edge-sharing acetate units in its triangular motif, whilst keeping the overall multinuclear architecture intact. Strikingly, little is known about the controlled manipulation and substoichiometric substitution chemistry of this well-defined conglomerate. We herein conclusively demonstrate that, for the first time, the targeted exchange of two or four acetate units from the Pd3(acetate)6 platform is possible, thereby installing either one or two new tridentate ligands onto this trinuclear architecture. Follow-up exchange and substitution chemistry is available without disrupting the multimetallic nature of the core structure. New complexes 2-7 are all conclusively characterized using multinuclear NMR spectroscopy, UV-vis and IR spectroscopy as well as X-ray diffraction analysis.
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Affiliation(s)
- Siuli Das
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
| | - Julia Buschermöhle
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
| | - Dirk W Zant
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, the, Netherlands
| | - M Schmidtmann
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
| | - Jarl Ivar van der Vlugt
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
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31
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Douma ER, Kop WJ, Kupper N. Associations Between Psychological Factors and Adherence to Health Behaviors After Percutaneous Coronary Intervention: The Role of Cardiac Rehabilitation. Ann Behav Med 2024; 58:328-340. [PMID: 38431284 PMCID: PMC11008588 DOI: 10.1093/abm/kaae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Cardiac rehabilitation (CR) participation after percutaneous coronary intervention (PCI) for coronary heart disease lowers the disease burden and risk of recurrent cardiac events. Examining psychological factors may improve post-PCI health behavior adherence. PURPOSE To determine whether psychological factors are associated with post-PCI health behavior adherence, and the role of CR participation. METHODS Data from 1,682 patients (22.1% female, Mage = 64.0, SDage = 10.5 years) from the THORESCI cohort were included. Adjusted mixed models were used to examine associations between psychological factors and the 1-year course of health behaviors, using interactions to test for moderation by CR participation. RESULTS Psychological factors were associated with the trajectories of adherence to medical advice, exercise, and diet. The strongest association found was between optimism and the trajectory of dietary adherence (B: = -0.09, p = .026). Patients with high optimism levels had a worse trajectory of dietary adherence compared to patients with low to middle optimism levels. Participation in CR buffered the associations of high anxiety, pessimism, and low to middle resilience, but strengthened the associations of high stress in the past year with the probability of smoking. CONCLUSIONS Psychological factors are associated with post-PCI health behavior adherence, but the pattern of associations is complex. Patients with high levels of anxiety, pessimism, and low to middle resilience levels may disproportionately benefit from CR. Cardiac rehabilitation programs could consider this to improve post-PCI health behavior adherence. CLINICAL TRIALS REGISTRATION # NCT02621216.
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Affiliation(s)
- Emma R Douma
- Department of Medical and Clinical Psychology, Center of Research on Psychological Disorders and Somatic Diseases (CoRPS), Tilburg University, Tilburg, The Netherlands
| | - Willem J Kop
- Department of Medical and Clinical Psychology, Center of Research on Psychological Disorders and Somatic Diseases (CoRPS), Tilburg University, Tilburg, The Netherlands
| | - Nina Kupper
- Department of Medical and Clinical Psychology, Center of Research on Psychological Disorders and Somatic Diseases (CoRPS), Tilburg University, Tilburg, The Netherlands
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32
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Honaker LW, Eijffius A, Plankensteiner L, Nikiforidis CV, Deshpande S. Biosensing with Oleosin-Stabilized Liquid Crystal Droplets. Small 2024:e2309053. [PMID: 38602194 DOI: 10.1002/smll.202309053] [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] [Received: 10/09/2023] [Revised: 12/30/2023] [Indexed: 04/12/2024]
Abstract
Liquid crystals (LCs) are emerging as novel platforms for chemical, physical, and biological sensing. They can be used to detect biological amphiphiles such as lipids, fatty acids, digestive surfactants, and bacterial endotoxins. However, designing LC-based sensors in a manner that preserves their sensitivity and responsiveness to these stimuli, and possibly improves biocompatibility, remains challenging. In this work, the stabilization of LC droplets by oleosins, plant-sourced and highly surface active proteins due to their extended amphipathic helix, is investigated. Purified oleosins, at sub-micromolar concentrations, are shown to readily stabilize nematic LC droplets without switching their alignment, allowing them to detect surfactants at micromolar concentrations. Direct evidence of localization of oleosins at the LC-water interface is provided with fluorescent labeling, and the stabilized droplets remain stable over months. Interestingly, chiral LC droplets readily switch in the presence of nanomolar oleosin concentrations, an unexpected behavior that is explained by accounting for the energy barriers required for switching the alignment between the two cases. This leads thus to a twofold conclusion: oleosin-stabilized nematic LC droplets present a biocompatible alternative for bioanalyte detection, while chiral LCs can be further investigated for use as highly sensitive sensors for detecting amphipathic helices in biological systems.
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Affiliation(s)
- Lawrence W Honaker
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, 6708 WE, Wageningen, The Netherlands
| | - Axel Eijffius
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, 6708 WE, Wageningen, The Netherlands
| | - Lorenz Plankensteiner
- Laboratory of Biobased Chemistry and Technology, Wageningen University & Research, 6708 WG, Wageningen, The Netherlands
- Laboratory of Food Chemistry, Wageningen University & Research, 6708 WG, Wageningen, The Netherlands
| | - Constantinos V Nikiforidis
- Laboratory of Biobased Chemistry and Technology, Wageningen University & Research, 6708 WG, Wageningen, The Netherlands
| | - Siddharth Deshpande
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, 6708 WE, Wageningen, The Netherlands
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Fois M, Zengin A, Song K, Giselbrecht S, Habibović P, Truckenmüller RK, van Rijt S, Tahmasebi Birgani ZN. Nanofunctionalized Microparticles for Glucose Delivery in Three-Dimensional Cell Assemblies. ACS Appl Mater Interfaces 2024; 16:17347-17360. [PMID: 38561903 PMCID: PMC11009907 DOI: 10.1021/acsami.4c02321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 04/04/2024]
Abstract
Three-dimensional (3D) cell assemblies, such as multicellular spheroids, can be powerful biological tools to closely mimic the complexity of cell-cell and cell-matrix interactions in a native-like microenvironment. However, potential applications of large spheroids are limited by the insufficient diffusion of oxygen and nutrients through the spheroids and, thus, result in the formation of a necrotic core. To overcome this drawback, we present a new strategy based on nanoparticle-coated microparticles. In this study, microparticles function as synthetic centers to regulate the diffusion of small molecules, such as oxygen and nutrients, within human mesenchymal stem cell (hMSC) spheroids. The nanoparticle coating on the microparticle surface acts as a nutrient reservoir to release glucose locally within the spheroids. We first coated the surface of the poly(lactic-co-glycolic acid) (PLGA) microparticles with mesoporous silica nanoparticles (MSNs) based on electrostatic interactions and then formed cell-nanofunctionalized microparticle spheroids. Next, we investigated the stability of the MSN coating on the microparticles' surface during 14 days of incubation in cell culture medium at 37 °C. Then, we evaluated the influence of MSN-coated PLGA microparticles on spheroid aggregation and cell viability. Our results showed the formation of homogeneous spheroids with good cell viability. As a proof of concept, fluorescently labeled glucose (2-NBD glucose) was loaded into the MSNs at different concentrations, and the release behavior was monitored. For cell culture studies, glucose was loaded into the MSNs coated onto the PLGA microparticles to sustain local nutrient release within the hMSC spheroids. In vitro results demonstrated that the local delivery of glucose from MSNs enhanced the cell viability in spheroids during a short-term hypoxic culture. Taken together, the newly developed nanofunctionalized microparticle-based delivery system may offer a versatile platform for local delivery of small molecules within 3D cellular assemblies and, thus, improve cell viability in spheroids.
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Affiliation(s)
| | | | - Ke Song
- Department of Instructive
Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Stefan Giselbrecht
- Department of Instructive
Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Pamela Habibović
- Department of Instructive
Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Roman K. Truckenmüller
- Department of Instructive
Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
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Korteland RJ, Kok E, Hulshof C, van Gog T. Teaching through their eyes: effects on optometry teachers' adaptivity and students' learning when teachers see students' gaze. Adv Health Sci Educ Theory Pract 2024:10.1007/s10459-024-10325-3. [PMID: 38598135 DOI: 10.1007/s10459-024-10325-3] [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] [Received: 09/06/2023] [Accepted: 03/17/2024] [Indexed: 04/11/2024]
Abstract
Adaptive teacher support fosters effective learning in one-to-one teaching sessions, which are a common way of learning complex visual tasks in the health sciences. Adaptive support is tailored to student needs, and this is difficult in complex visual tasks as visual problem-solving processes are covert and thus cannot be directly observed by the teacher. Eye-tracking apparatus can measure covert processes and make them visible in gaze displays: visualizations of where a student looks while executing a task. We investigate whether live dynamic gaze displays help teachers in being more adaptive to students' needs when teaching optical coherence tomography interpretation in one-to-one teaching sessions and whether this fosters learning. Forty-nine students and 10 teachers participated in a one-to-one teaching session in clinical optometry. In the control condition, teachers saw the learning task of the student and could discuss it with them, whereas in the gaze-display condition, teachers could additionally see where the student looked. After the 15-minute teaching session, a test was administered to examine achievement. Furthermore, students filled in the 'questionnaire on teacher support adaptivity', and teachers rated how adaptive their support was. Bayesian analyses provide some initial evidence that students did not experience support to be more adaptive in the gaze-display condition versus the control condition, nor were their post-test scores higher. Teachers rated their provided support as being more adaptive in the gaze-display versus the control condition. Further research could investigate if live dynamic gaze displays impact adaptive teaching when used over longer periods or with more teacher training.
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Affiliation(s)
- Robert-Jan Korteland
- Department of Education, Utrecht University, P.O. Box 80140, Utrecht, 3508 CS, Netherlands
| | - Ellen Kok
- Department of Education, Utrecht University, P.O. Box 80140, Utrecht, 3508 CS, Netherlands.
| | - Casper Hulshof
- Department of Education, Utrecht University, P.O. Box 80140, Utrecht, 3508 CS, Netherlands
| | - Tamara van Gog
- Department of Education, Utrecht University, P.O. Box 80140, Utrecht, 3508 CS, Netherlands
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Güngör E, Savary J, Adema K, Dijkhuizen LW, Keilwagen J, Himmelbach A, Mascher M, Koppers N, Bräutigam A, Van Hove C, Riant O, Nierzwicki-Bauer S, Schluepmann H. The crane fly glycosylated triketide δ-lactone cornicinine elicits akinete differentiation of the cyanobiont in aquatic Azolla fern symbioses. Plant Cell Environ 2024. [PMID: 38600764 DOI: 10.1111/pce.14907] [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] [Received: 12/14/2023] [Revised: 03/02/2024] [Accepted: 03/22/2024] [Indexed: 04/12/2024]
Abstract
The restriction of plant-symbiont dinitrogen fixation by an insect semiochemical had not been previously described. Here we report on a glycosylated triketide δ-lactone from Nephrotoma cornicina crane flies, cornicinine, that causes chlorosis in the floating-fern symbioses from the genus Azolla. Only the glycosylated trans-A form of chemically synthesized cornicinine was active: 500 nM cornicinine in the growth medium turned all cyanobacterial filaments from Nostoc azollae inside the host leaf-cavities into akinetes typically secreting CTB-bacteriocins. Cornicinine further inhibited akinete germination in Azolla sporelings, precluding re-establishment of the symbiosis during sexual reproduction. It did not impact development of the plant Arabidopsis thaliana or several free-living cyanobacteria from the genera Anabaena or Nostoc but affected the fern host without cyanobiont. Fern-host mRNA sequencing from isolated leaf cavities confirmed high NH4-assimilation and proanthocyanidin biosynthesis in this trichome-rich tissue. After cornicinine treatment, it revealed activation of Cullin-RING ubiquitin-ligase-pathways, known to mediate metabolite signaling and plant elicitation consistent with the chlorosis phenotype, and increased JA-oxidase, sulfate transport and exosome formation. The work begins to uncover molecular mechanisms of cyanobiont differentiation in a seed-free plant symbiosis important for wetland ecology or circular crop-production today, that once caused massive CO2 draw-down during the Eocene geological past.
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Affiliation(s)
- Erbil Güngör
- Department of Biology, Utrecht University, Utrecht, The Netherlands
| | - Jérôme Savary
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Kelvin Adema
- Department of Biology, Utrecht University, Utrecht, The Netherlands
| | | | | | - Axel Himmelbach
- Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
| | - Martin Mascher
- Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
| | - Nils Koppers
- Computational Biology, Center for Biotechnology and Faculty of Biology, Bielefeld University, Bielefeld, Germany
| | - Andrea Bräutigam
- Computational Biology, Center for Biotechnology and Faculty of Biology, Bielefeld University, Bielefeld, Germany
| | - Charles Van Hove
- Emeritus Professor from the Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Olivier Riant
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
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Vonken L, de Bruijn GJ, Noordink A, Kremers S, Schneider F. Barriers and facilitators of implementation of new antibacterial technologies in patient care: an interview study with orthopedic healthcare professionals at a university hospital. BMC Health Serv Res 2024; 24:447. [PMID: 38594689 PMCID: PMC11005272 DOI: 10.1186/s12913-024-10878-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 03/19/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Antimicrobial resistance is a major global health threat. Therefore, promising new antibacterial technologies that could minimize our dependence on antibiotics should be widely adopted. This study aims to identify the barriers and facilitators of the adoption of new antibacterial technologies in hospital patient care. METHODS Semi-structured interviews, based on the Consolidated Framework for Implementation Research, were conducted with healthcare professionals related to the orthopedics department of an academic hospital in The Netherlands. RESULTS In total, 11 healthcare professionals were interviewed. Scientific evidence for the effectiveness of the technology was the most explicitly mentioned facilitator of adoption, but other (often contextual) factors were also considered to be important. At the level of the inner and outer setting, high costs and lacking coverage, competition from other firms, and problems with ordering and availability were the most explicit perceived barriers to adoption. Participants did not collectively feel the need for new antibacterial technologies. CONCLUSIONS Barriers and facilitators of the adoption of new antibacterial technologies were identified related to the technology, the hospital, and external factors. The implementation climate might have an indirect influence on adoption. New antibacterial technologies that are scientifically proven effective, affordable, and easily obtainable will most likely be adopted.
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Affiliation(s)
- Lieve Vonken
- Department of Health Promotion, Research School CAPHRI, Maastricht University, P. Debyelaan 1, 6229 HA, Maastricht, The Netherlands.
| | - Gert-Jan de Bruijn
- Department of Communication Studies, University of Antwerp, Stadscampus, S.M.481 Sint-Jacobsstraat 2, 2000, Antwerpen, Belgium
| | - Annika Noordink
- Department of Health Promotion, Research School CAPHRI, Maastricht University, P. Debyelaan 1, 6229 HA, Maastricht, The Netherlands
| | - Stef Kremers
- Department of Health Promotion, Research School CAPHRI, Maastricht University, P. Debyelaan 1, 6229 HA, Maastricht, The Netherlands
| | - Francine Schneider
- Department of Health Promotion, Research School CAPHRI, Maastricht University, P. Debyelaan 1, 6229 HA, Maastricht, The Netherlands
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Wissink M, Glodowska M, van der Kolk MR, Jetten MSM, Welte CU. Probing Denitrifying Anaerobic Methane Oxidation via Antimicrobial Intervention: Implications for Innovative Wastewater Management. Environ Sci Technol 2024; 58:6250-6257. [PMID: 38551595 PMCID: PMC11008094 DOI: 10.1021/acs.est.3c07197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Methane emissions present a significant environmental challenge in both natural and engineered aquatic environments. Denitrifying anaerobic methane oxidation (N-DAMO) has the potential for application in wastewater treatment plants. However, our understanding of the N-DAMO process is primarily based on studies conducted on environmental samples or enrichment cultures using metagenomic approaches. To gain deeper insights into N-DAMO, we used antimicrobial compounds to study the function and physiology of 'Candidatus Methanoperedens nitroreducens' and 'Candidatus Methylomirabilis oxyfera' in N-DAMO enrichment cultures. We explored the effects of inhibitors and antibiotics and investigated the potential application of N-DAMO in wastewater contaminated with ammonium and heavy metals. Our results showed that 'Ca. M. nitroreducens' was susceptible to puromycin and 2-bromoethanesulfonate, while the novel methanogen inhibitor 3-nitrooxypropanol had no effect on N-DAMO. Furthermore, 'Ca. M. oxyfera' was shown to be susceptible to the particulate methane monooxygenase inhibitor 1,7-octadiyne and a bacteria-suppressing antibiotic cocktail. The N-DAMO activity was not affected by ammonium concentrations below 10 mM. Finally, the N-DAMO community appeared to be remarkably resistant to lead (Pb) but susceptible to nickel (Ni) and cadmium (Cd). This study provides insights into microbial functions in N-DAMO communities, facilitating further investigation of their application in methanogenic, nitrogen-polluted water systems.
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Affiliation(s)
- Martijn Wissink
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Martyna Glodowska
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Marnix R. van der Kolk
- Synthetic
Organic Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Mike S. M. Jetten
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Cornelia U. Welte
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
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38
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van Campenhout CT, Bistervels MH, Rietveld J, Schoenmaker H, Kamp M, Noorduin WL. Designing Complex Tapestries with Photography-Inspired Manipulation of Self-Organized Thin-Films. Adv Sci (Weinh) 2024:e2401625. [PMID: 38582518 DOI: 10.1002/advs.202401625] [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] [Received: 02/15/2024] [Revised: 03/18/2024] [Indexed: 04/08/2024]
Abstract
Thin-films patterned with complex motifs are of fundamental interest because of their advanced optical, mechanical and electronic properties, but fabrication of these materials remains challenging. Self-organization strategies, such as immersion controlled reaction-diffusion patterning, have shown great potential for production of patterned thin-films. However, the autonomous nature of such processes limits controllable pattern customizability and complexity. Here, it is demonstrated that photography inspired manipulation processes can overcome this limitation to create highly-complex tapestries of micropatterned films (MPF's). Inspired by classical photographic processes, MPF's are developed, bleached, exposed, fixed, and contoured into user-defined shapes and photographic toning reactions are used to convert the chemical composition MPF's, while preserving the original stripe patterns. By applying principles of composite photography, highly complex tapestries composed of multiple MPF layers are designed, where each layer can be individually manipulated into a specific shape and composition. By overcoming fundamental limitations, this synergistic approach broadens the design possibilities of reaction-diffusion processes, furthering the potential of self-organization strategies for the development of complex materials.
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Affiliation(s)
| | - M H Bistervels
- AMOLF, Science Park 104, Amsterdam, 1098XG, The Netherlands
| | - J Rietveld
- AMOLF, Science Park 104, Amsterdam, 1098XG, The Netherlands
| | - H Schoenmaker
- AMOLF, Science Park 104, Amsterdam, 1098XG, The Netherlands
| | - M Kamp
- AMOLF, Science Park 104, Amsterdam, 1098XG, The Netherlands
| | - W L Noorduin
- AMOLF, Science Park 104, Amsterdam, 1098XG, The Netherlands
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1090 GD, The Netherlands
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Vos R, Koper MTM. Nickel as Electrocatalyst for CO (2) Reduction: Effect of Temperature, Potential, Partial Pressure, and Electrolyte Composition. ACS Catal 2024; 14:4432-4440. [PMID: 38601778 PMCID: PMC11002821 DOI: 10.1021/acscatal.4c00009] [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: 01/01/2024] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 04/12/2024]
Abstract
Electrochemical CO2 reduction on Ni has recently been shown to have the unique ability to produce longer hydrocarbon chains in small but measurable amounts. However, the effects of the many parameters of this reaction remain to be studied in more detail. Here, we have investigated the effect of temperature, bulk CO2 concentration, potential, the reactant, cations, and anions on the formation of hydrocarbons via a chain growth mechanism on Ni. We show that temperature increases the activity but also the formation of coke, which deactivates the catalyst. The selectivity and thus the chain growth probability is mainly affected by the potential and the electrolyte composition. Remarkably, CO reduction shows lower activity but a higher chain growth probability than CO2 reduction. We conclude that hydrogenation is likely to be the rate-determining step and hypothesize that this could happen either by *CO hydrogenation or by termination of the hydrocarbon chain. These insights open the way to further development and optimization of Ni for electrochemical CO2 reduction.
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Affiliation(s)
- Rafaël
E. Vos
- Leiden Institute of Chemistry, Leiden University, P.O.Box 9502, 2300
RA Leiden, The Netherlands
| | - Marc T. M. Koper
- Leiden Institute of Chemistry, Leiden University, P.O.Box 9502, 2300
RA Leiden, The Netherlands
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40
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Che Q, van den Bosch ICG, Le PTP, Lazemi M, van der Minne E, Birkhölzer YA, Nunnenkamp M, Peerlings MLJ, Safonova OV, Nachtegaal M, Koster G, Baeumer C, de Jongh P, de Groot FMF. In Situ X-ray Absorption Spectroscopy of LaFeO 3 and LaFeO 3/LaNiO 3 Thin Films in the Electrocatalytic Oxygen Evolution Reaction. J Phys Chem C Nanomater Interfaces 2024; 128:5515-5523. [PMID: 38595773 PMCID: PMC11000219 DOI: 10.1021/acs.jpcc.3c07864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 04/11/2024]
Abstract
We study the electrocatalytic oxygen evolution reaction using in situ X-ray absorption spectroscopy (XAS) to track the dynamics of the valence state and the covalence of the metal ions of LaFeO3 and LaFeO3/LaNiO3 thin films. The active materials are 8 unit cells grown epitaxially on 100 nm conductive La0.67Sr0.33MnO3 layers using pulsed laser deposition (PLD). The perovskite layers are supported on monolayer Ca2Nb3O10 nanosheet-buffered 100 nm SiNx membranes. The in situ Fe and Ni K-edges XAS spectra were measured from the backside of the SiNx membrane using fluorescence yield detection under electrocatalytic reaction conditions. The XAS spectra show significant spectral changes, which indicate that (1) the metal (co)valencies increase, and (2) the number of 3d electrons remains constant with applied potential. We find that the whole 8 unit cells react to the potential changes, including the buried LaNiO3 film.
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Affiliation(s)
- Qijun Che
- Materials
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | | | - Phu T. P. Le
- MESA+
Institute for Nanotechnology, University
of Twente, Enschede 7500 AE, The Netherlands
| | - Masoud Lazemi
- Materials
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Emma van der Minne
- MESA+
Institute for Nanotechnology, University
of Twente, Enschede 7500 AE, The Netherlands
| | - Yorick A. Birkhölzer
- MESA+
Institute for Nanotechnology, University
of Twente, Enschede 7500 AE, The Netherlands
| | - Moritz Nunnenkamp
- MESA+
Institute for Nanotechnology, University
of Twente, Enschede 7500 AE, The Netherlands
| | - Matt L. J. Peerlings
- Materials
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | | | | | - Gertjan Koster
- MESA+
Institute for Nanotechnology, University
of Twente, Enschede 7500 AE, The Netherlands
| | - Christoph Baeumer
- MESA+
Institute for Nanotechnology, University
of Twente, Enschede 7500 AE, The Netherlands
| | - Petra de Jongh
- Materials
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Frank M. F. de Groot
- Materials
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
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41
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van der Meer DJ, Zevenbergen S, Vlooswijk C, Bijlsma RM, Kaal SEJ, Kerst JM, Tromp JM, Bos MEMM, van der Hulle T, Lalisang RI, Nuver J, Kouwenhoven MCM, van der Graaf WTA, Husson O. Patient-Reported Outcomes of Accelerated Aging: A Novel Approach to Investigate Second Cancer Risk in Adolescent and Young Adult (18-39 Years) Cancer Survivors. Oncologist 2024; 29:e526-e534. [PMID: 37995309 PMCID: PMC10994290 DOI: 10.1093/oncolo/oyad307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 09/26/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Adolescent and young adult cancer survivors (AYAs, aged 18-39 years at first diagnosis) have a higher second cancer risk. Accelerated aging is hypothesized as underlying mechanism and has been described clinically by 6 indicators; fatigue, low quality of sleep, low mood, lack of motivation, subjective memory complaints, and poor exercise tolerance. Using patient-reported outcomes, we aimed to identify clusters of accelerated aging among AYA cancer survivors and to investigate their association with second cancer development. PATIENTS AND METHODS Patient, tumor, and treatment data were obtained from the Netherlands Cancer Registry. Patient-reported clinical indicators and second cancer data were obtained from the SURVivors (5-20 years) of cancer in AYAs (SURVAYA) questionnaire study between 1999 and 2015. Latent class and multivariable logistic regression analyses were performed. RESULTS In total, n = 3734 AYA survivors with known second cancer status (n = 278 [7.4%] second cancers) were included. Four latent clusters were identified and named based on their clinical indicator features; (1) high accelerated aging (31.3%), (2) intermediate accelerated aging without poor exercise tolerance (15.1%), (3) intermediate accelerated aging without lack of motivation (27.4%), and (4) low accelerated aging (26.2%). AYAs in the high accelerated aging cluster were more likely to have second cancer (odds ratio: 1.6; 95% CI, 1.1-2.3) compared to the low accelerated aging cluster. CONCLUSION AYAs with a higher burden of accelerated aging were more likely to develop a second cancer. Validation of the clinical indicators and how to best capture them is needed to improve (early) detection of AYAs at high risk of developing second cancer.
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Affiliation(s)
- Daniël J van der Meer
- Department of Medical Oncology, Netherlands Cancer Institute – Antoni van Leeuwenhoek, Amsterdam, North Holland, The Netherlands
- Department of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, North Holland, The Netherlands
| | - Susan Zevenbergen
- Department of Medical Oncology, Netherlands Cancer Institute – Antoni van Leeuwenhoek, Amsterdam, North Holland, The Netherlands
- Department of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, North Holland, The Netherlands
| | - Carla Vlooswijk
- Research and Development, Netherlands Comprehensive Cancer Organization (IKNL), Utrecht, Utrecht, The Netherlands
| | - Rhodé M Bijlsma
- Department of Medical Oncology, University Medical Center, Utrecht, Utrecht, The Netherlands
| | - Suzanne E J Kaal
- Department of Medical Oncology, Radboud University Medical Center, Nijmegen, Gelderland, The Netherlands
| | - Jan Martijn Kerst
- Department of Medical Oncology, Netherlands Cancer Institute – Antoni van Leeuwenhoek, Amsterdam, North Holland, The Netherlands
| | - Jacqueline M Tromp
- Department of Medical Oncology, Amsterdam University Medical Centers, Amsterdam, North Holland, The Netherlands
| | - Monique E M M Bos
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, The Netherlands
| | - Tom van der Hulle
- Department of Medical Oncology, Leiden University Medical Center, Leiden, South Holland, The Netherlands
| | - Roy I Lalisang
- Department of Internal Medicine, Division of Medical Oncology, GROW-School of Oncology and Reproduction, Maastricht UMC+ Comprehensive Cancer Center, Maastricht, Limburg, The Netherlands
| | - Janine Nuver
- Department of Medical Oncology, University Medical Center Groningen, Groningen, The Netherlands
| | - Mathilde C M Kouwenhoven
- Department of Neurology, Amsterdam University Medical Centers, Amsterdam, North Holland, The Netherlands
- Cancer Center Amsterdam, Cancer treatment and quality of life, Amsterdam, North Holland, The Netherlands
| | - Winette T A van der Graaf
- Department of Medical Oncology, Netherlands Cancer Institute – Antoni van Leeuwenhoek, Amsterdam, North Holland, The Netherlands
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, The Netherlands
| | - Olga Husson
- Department of Medical Oncology, Netherlands Cancer Institute – Antoni van Leeuwenhoek, Amsterdam, North Holland, The Netherlands
- Department of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, North Holland, The Netherlands
- Department of Surgical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, The Netherlands
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42
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Hung TC, Godinez-Loyola Y, Steinbrecher M, Kiraly B, Khajetoorians AA, Doltsinis NL, Strassert CA, Wegner D. Activating the Fluorescence of a Ni(II) Complex by Energy Transfer. J Am Chem Soc 2024; 146:8858-8864. [PMID: 38513215 PMCID: PMC10996004 DOI: 10.1021/jacs.3c07716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 03/23/2024]
Abstract
Luminescence of open-shell 3d metal complexes is often quenched due to ultrafast intersystem crossing (ISC) and cooling into a dark metal-centered excited state. We demonstrate successful activation of fluorescence from individual nickel phthalocyanine (NiPc) molecules in the junction of a scanning tunneling microscope (STM) by resonant energy transfer from other metal phthalocyanines at low temperature. By combining STM, scanning tunneling spectroscopy, STM-induced luminescence, and photoluminescence experiments as well as time-dependent density functional theory, we provide evidence that there is an activation barrier for the ISC, which, in most experimental conditions, is overcome. We show that this is also the case in an electroluminescent tunnel junction where individual NiPc molecules adsorbed on an ultrathin NaCl decoupling film on a Ag(111) substrate are probed. However, when an MPc (M = Zn, Pd, Pt) molecule is placed close to NiPc by means of STM atomic manipulation, resonant energy transfer can excite NiPc without overcoming the ISC activation barrier, leading to Q-band fluorescence. This work demonstrates that the thermally activated population of dark metal-centered states can be avoided by a designed local environment at low temperatures paired with directed molecular excitation into vibrationally cold electronic states. Thus, we can envisage the use of luminophores based on more abundant transition metal complexes that do not rely on Pt or Ir by restricting vibration-induced ISC.
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Affiliation(s)
- Tzu-Chao Hung
- Institute
for Molecules and Materials, Radboud University, 6500 GL Nijmegen, The Netherlands
- Institute
for Experimental and Applied Physics, University of Regensburg, 93040 Regensburg, Germany
| | - Yokari Godinez-Loyola
- Institut
für Anorganische und Analytische Chemie, University of Münster, 48149 Münster, Germany
- Center
for Nanotechnology (CeNTech), University
of Münster, 48149 Münster, Germany
| | - Manuel Steinbrecher
- Institute
for Molecules and Materials, Radboud University, 6500 GL Nijmegen, The Netherlands
| | - Brian Kiraly
- Institute
for Molecules and Materials, Radboud University, 6500 GL Nijmegen, The Netherlands
| | | | - Nikos L. Doltsinis
- Institut
für Festkörpertheorie and Center for Multiscale Theory
and Computation, University of Münster, 48149 Münster, Germany
| | - Cristian A. Strassert
- Institut
für Anorganische und Analytische Chemie, University of Münster, 48149 Münster, Germany
- Center
for Nanotechnology (CeNTech), University
of Münster, 48149 Münster, Germany
- Cells in
Motion Interfaculty Centre (CiMIC) and Center for Soft Nanoscience
(SoN), University of Münster, 48149 Münster, Germany
| | - Daniel Wegner
- Institute
for Molecules and Materials, Radboud University, 6500 GL Nijmegen, The Netherlands
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43
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van Stuijvenberg OC, Broekman MLD, Wolff SEC, Bredenoord AL, Jongsma KR. Developer perspectives on the ethics of AI-driven neural implants: a qualitative study. Sci Rep 2024; 14:7880. [PMID: 38570593 PMCID: PMC10991497 DOI: 10.1038/s41598-024-58535-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 04/01/2024] [Indexed: 04/05/2024] Open
Abstract
Convergence of neural implants with artificial intelligence (AI) presents opportunities for the development of novel neural implants and improvement of existing neurotechnologies. While such technological innovation carries great promise for the restoration of neurological functions, they also raise ethical challenges. Developers of AI-driven neural implants possess valuable knowledge on the possibilities, limitations and challenges raised by these innovations; yet their perspectives are underrepresented in academic literature. This study aims to explore perspectives of developers of neurotechnology to outline ethical implications of three AI-driven neural implants: a cochlear implant, a visual neural implant, and a motor intention decoding speech-brain-computer-interface. We conducted semi-structured focus groups with developers (n = 19) of AI-driven neural implants. Respondents shared ethically relevant considerations about AI-driven neural implants that we clustered into three themes: (1) design aspects; (2) challenges in clinical trials; (3) impact on users and society. Developers considered accuracy and reliability of AI-driven neural implants conditional for users' safety, authenticity, and mental privacy. These needs were magnified by the convergence with AI. Yet, the need for accuracy and reliability may also conflict with potential benefits of AI in terms of efficiency and complex data interpretation. We discuss strategies to mitigate these challenges.
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Affiliation(s)
- Odile C van Stuijvenberg
- Department of Bioethics and Health Humanities, Julius Center, University Medical Center Utrecht, Utrecht University, 3508 GA, Utrecht, The Netherlands.
| | - Marike L D Broekman
- Department of Neurosurgery, Haaglanden Medical Center, 2512 VA, The Hague, The Netherlands
- Department of Neurosurgery, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - Samantha E C Wolff
- Netherlands Institute for Neuroscience, 1105 BA, Amsterdam, The Netherlands
| | - Annelien L Bredenoord
- Erasmus School of Philosophy, Erasmus University Rotterdam, 3062 PA, Rotterdam, The Netherlands
| | - Karin R Jongsma
- Department of Bioethics and Health Humanities, Julius Center, University Medical Center Utrecht, Utrecht University, 3508 GA, Utrecht, The Netherlands
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44
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Keessen P, Kan KJ, ter Riet G, Visser B, Jørstad HT, Latour CHM, van Duijvenbode ICD, Scholte op Reimer WJM. The longitudinal relationship between fear of movement and physical activity after cardiac hospitalization: A cross lagged panel model. PLoS One 2024; 19:e0297672. [PMID: 38568940 PMCID: PMC10990176 DOI: 10.1371/journal.pone.0297672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/11/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Little is known about the association between fear of movement (kinesiophobia) and objectively measured physical activity (PA), the first 12 weeks after cardiac hospitalization. PURPOSE To assess the longitudinal association between kinesiophobia and objectively measured PA and to assess the factor structure of kinesiophobia. METHODS We performed a longitudinal observational study. PA was continuously measured from hospital discharge to 12 weeks using the Personal Activity Monitor. The PAM measures time spent per day in PA-intensity categories: light, moderate and heavy. Kinesiophobia was assessed with the Tampa Scale for Kinesiophobia (TSK) at four time points (hospital discharge, 3, 6 and 12 weeks). The longitudinal association between PA-intensity and kinesiophobia was studied with a random intercept cross lagged panel model (RI-CLPM). A RI-CLPM estimates effects from kinesiophobia on objectively measured PA and vice versa (cross-over effects), and autoregressive effects (e.g. kinesiophobia from one occasion to the next). RESULTS In total, 116 patients (83.6% male) with a median age of 65.5 were included in this study. On no occasion did we find an effect of kinesiophobia on PA and vice versa. Model fit for the original model was poor (X2: = 44.646 P<0.001). Best model fit was found for a model were kinesiophobia was modelled as a stable between factor (latent variable) and PA as autoregressive component (dynamic process) (X2 = 27.541 P<0.12). CONCLUSION Kinesiophobia and objectively measured PA are not associated in the first 12 weeks after hospital discharge. This study shows that kinesiophobia remained relatively stable, 12 weeks after hospital discharge, despite fluctuations in light to moderate PA-intensity.
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Affiliation(s)
- Paul Keessen
- Faculty of Health, Centre of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands
| | - Kees Jan Kan
- Research Institute of Child Development and Education, University of Amsterdam, Amsterdam, the Netherlands
| | - Gerben ter Riet
- Research Institute of Child Development and Education, University of Amsterdam, Amsterdam, the Netherlands
| | - Bart Visser
- Faculty of Health, Centre of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands
| | - Harald T. Jørstad
- Department of Cardiology, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Corine H. M. Latour
- Faculty of Health, Centre of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands
| | - Ingrid C. D. van Duijvenbode
- Faculty of Health, Centre of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands
| | - Wilma J. M. Scholte op Reimer
- Department of Cardiology, Amsterdam University Medical Centre, Amsterdam, the Netherlands
- Research Group Chronic Diseases, Utrecht University of Applied Sciences, Utrecht, the Netherlands
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45
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Hess KM, Leach IF, Wijtenhorst L, Lee H, Klein JEMN. Valence Tautomerism Induced Proton Coupled Electron Transfer:X-H Bond Oxidation with a Dinuclear Au(II) Hydroxide Complex. Angew Chem Int Ed Engl 2024; 63:e202318916. [PMID: 38324462 DOI: 10.1002/anie.202318916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 02/09/2024]
Abstract
We report the preparation and characterization of the dinuclear AuII hydroxide complex AuII 2(L)2(OH)2 (L=N,N'-bis (2,6-dimethyl) phenylformamidinate) and study its reactivity towards weak X-H bonds. Through the interplay of kinetic analysis and computational studies, we demonstrate that the oxidation of cyclohexadiene follows a concerted proton-coupled electron transfer (cPCET) mechanism, a rare type of reactivity for Au complexes. We find that the Au-Au σ-bond undergoes polarization in the PCET event leading to an adjustment of oxidation levels for both Au centers prior to C(sp3)-H bond cleavage. We thus describe the oxidation event as a valence tautomerism-induced PCET where the basicity of one reduced Au-OH unit provides a proton acceptor and the second more oxidized Au center serves as an electron acceptor. The coordination of these events allows for unprecedented radical-type reactivity by a closed shell AuII complex.
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Affiliation(s)
- Kristopher M Hess
- Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG Groningen, The Netherlands
| | - Isaac F Leach
- Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG Groningen, The Netherlands
| | - Lisa Wijtenhorst
- Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG Groningen, The Netherlands
| | - Hangyul Lee
- Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG Groningen, The Netherlands
| | - Johannes E M N Klein
- Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG Groningen, The Netherlands
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46
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Maßmann SC, Metselaar GA, van Dijken DJ, van den Berg KJ, Witte MD, Minnaard AJ. Regioselective palladium-catalysed aerobic oxidation of dextran and its use as a bio-based binder in paperboard coatings. Green Chem 2024; 26:4005-4012. [PMID: 38571728 PMCID: PMC10986772 DOI: 10.1039/d3gc04204a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/22/2024] [Indexed: 04/05/2024]
Abstract
The coatings industry is aiming to replace petrochemical-based binders in products such as paints and lacquers with bio-based alternatives. Native polysaccharide additives are already used, especially as adhesives, and here we show the use of oxidised dextran as a bio-based binder additive. Linear dextran with a molecular weight of 6 kDa was aerobically oxidised in water at the C3-position of its glucose units, catalysed by [(neocuproine)PdOAc]2(OTf)2. The resulting keto-dextran with different oxidation degrees was studied using adipic dihydrazide as a crosslinker in combination with the commercial petrochemical-based binder Joncryl®. Coating experiments show that part of the Joncryl® can be replaced by keto-dextran while maintaining the desired performance.
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Affiliation(s)
- Sarina C Maßmann
- Stratingh Institute for Chemistry, University of Groningen Nijenborgh 7 9747 AG Groningen The Netherlands
| | | | | | | | - Martin D Witte
- Stratingh Institute for Chemistry, University of Groningen Nijenborgh 7 9747 AG Groningen The Netherlands
| | - Adriaan J Minnaard
- Stratingh Institute for Chemistry, University of Groningen Nijenborgh 7 9747 AG Groningen The Netherlands
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47
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Stroganova I, Willenberg H, Tente T, Depraz Depland A, Bakels S, Rijs AM. Exploring the Aggregation Propensity of PHF6 Peptide Segments of the Tau Protein Using Ion Mobility Mass Spectrometry Techniques. Anal Chem 2024; 96:5115-5124. [PMID: 38517679 PMCID: PMC10993201 DOI: 10.1021/acs.analchem.3c04974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/24/2024]
Abstract
Peptide and protein aggregation involves the formation of oligomeric species, but the complex interplay between oligomers of different conformations and sizes complicates their structural elucidation. Using ion mobility mass spectrometry (IM-MS), we aim to reveal these early steps of aggregation for the Ac-PHF6-NH2 peptide segment from tau protein, thereby distinguishing between different oligomeric species and gaining an understanding of the aggregation pathway. An important factor that is often neglected, but which can alter the aggregation propensity of peptides, is the terminal capping groups. Here, we demonstrate the use of IM-MS to probe the early stages of aggregate formation of Ac-PHF6-NH2, Ac-PHF6, PHF6-NH2, and uncapped PHF6 peptide segments. The aggregation propensity of the four PHF6 segments is confirmed using thioflavin T fluorescence assays and transmission electron microscopy. A novel approach based on post-IM fragmentation and quadrupole selection on the TIMS-Qq-ToF (trapped ion mobility) spectrometer was developed to enhance oligomer assignment, especially for the higher-order aggregates. This approach pushes the limits of IM identification of isobaric species, whose signatures appear closer to each other with increasing oligomer size, and provides new insights into the interpretation of IM-MS data. In addition, TIMS collision cross section values are compared with traveling wave ion mobility (TWIMS) data to evaluate potential instrumental bias in the trapped ion mobility results. The two IM-MS instrumental platforms are based on different ion mobility principles and have different configurations, thereby providing us with valuable insight into the preservation of weakly bound biomolecular complexes such as peptide aggregates.
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Affiliation(s)
- Iuliia Stroganova
- Division
of Bioanalytical Chemistry, Department of Chemistry and Pharmaceutical
Sciences, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1105, Amsterdam 1081 HV, The Netherlands
- Centre
for Analytical Sciences Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Hannah Willenberg
- Division
of Bioanalytical Chemistry, Department of Chemistry and Pharmaceutical
Sciences, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1105, Amsterdam 1081 HV, The Netherlands
| | - Thaleia Tente
- Division
of Bioanalytical Chemistry, Department of Chemistry and Pharmaceutical
Sciences, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1105, Amsterdam 1081 HV, The Netherlands
| | - Agathe Depraz Depland
- Division
of Bioanalytical Chemistry, Department of Chemistry and Pharmaceutical
Sciences, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1105, Amsterdam 1081 HV, The Netherlands
- Centre
for Analytical Sciences Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Sjors Bakels
- Division
of Bioanalytical Chemistry, Department of Chemistry and Pharmaceutical
Sciences, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1105, Amsterdam 1081 HV, The Netherlands
- Centre
for Analytical Sciences Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Anouk M. Rijs
- Division
of Bioanalytical Chemistry, Department of Chemistry and Pharmaceutical
Sciences, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1105, Amsterdam 1081 HV, The Netherlands
- Centre
for Analytical Sciences Amsterdam, Amsterdam 1098 XH, The Netherlands
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48
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de Kler N, Pereverzev AY, Roithová J. Terminal Copper Nitrenoid Formation and Reactivity Induced by Absorption to an Antenna Ligand. Angew Chem Int Ed Engl 2024; 63:e202319270. [PMID: 38314650 DOI: 10.1002/anie.202319270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 02/06/2024]
Abstract
Copper nitrenoids are key intermediates in copper-catalyzed direct C-H amination reactions. Further development of this important reaction relies on knowing the properties and reactivity of the nitrenoid intermediates. This work utilizes antenna ligands to form copper nitrenoid complexes and monitor the consecutive C-H amination reactions under well-defined single-molecule conditions in the gas phase. The [Cu(Lphoto)(Lazide)]+ precursors (Lphoto is a bidentate antenna ligand, and Lazide is an organic azide) were stored in an ion trap at 3.5 K and irradiated by visible light, which resulted in denitrogenation of the complex. Further irradiation of the copper nitrenoid led to the consecutive C-H amination of the antenna ligand. The nitrenoid complexes, as well as the products of the C-H amination, were characterized by helium tagging IRPD spectroscopy, and the mechanism was described by DFT calculations. This research demonstrates that the antenna ligands can be used to promote the denitrogenation of metal azides in the gas phase and also channel the internal energy to promote further reactivity, which opens a new way to study the reactivity of highly reactive species under well-defined conditions.
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Affiliation(s)
- Noël de Kler
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Aleksandr Y Pereverzev
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Jana Roithová
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
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49
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Marinus N, Reintjens NRM, Haldimann K, Mouthaan MLMC, Hobbie SN, Witte MD, Minnaard AJ. Site-Selective Palladium-catalyzed Oxidation of Unprotected Aminoglycosides and Sugar Phosphates. Chemistry 2024; 30:e202400017. [PMID: 38284753 DOI: 10.1002/chem.202400017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 01/30/2024]
Abstract
The site-selective modification of complex biomolecules by transition metal-catalysis is highly warranted, but often thwarted by the presence of Lewis basic functional groups. This study demonstrates that protonation of amines and phosphates in carbohydrates circumvents catalyst inhibition in palladium-catalyzed site-selective oxidation. Both aminoglycosides and sugar phosphates, compound classes that up till now largely escaped direct modification, are oxidized with good efficiency. Site-selective oxidation of kanamycin and amikacin was used to prepare a set of 3'-modified aminoglycoside derivatives of which two showed promising activity against antibiotic-resistant E. coli strains.
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Affiliation(s)
- Nittert Marinus
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Niels R M Reintjens
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Klara Haldimann
- Institute of Medical Microbiology, University of Zürich, Gloriastrasse 28/30, Zürich, Switzerland
| | - Marc L M C Mouthaan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Sven N Hobbie
- Institute of Medical Microbiology, University of Zürich, Gloriastrasse 28/30, Zürich, Switzerland
| | - Martin D Witte
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Adriaan J Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
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50
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Hooglugt A, van der Stoel MM, Shapeti A, Neep BF, de Haan A, van Oosterwyck H, Boon RA, Huveneers S. DLC1 promotes mechanotransductive feedback for YAP via RhoGAP-mediated focal adhesion turnover. J Cell Sci 2024:jcs.261687. [PMID: 38563084 DOI: 10.1242/jcs.261687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024] Open
Abstract
Angiogenesis is a tightly controlled dynamic process demanding a delicate equilibrium between pro-angiogenic signals and factors that promote vascular stability. The spatiotemporal activation of the transcriptional co-factors YAP/TAZ is crucial to allow for efficient collective endothelial migration in angiogenesis. The focal adhesion protein Deleted-in-liver-cancer-1 (DLC1) was recently described as a transcriptional downstream target of YAP/TAZ in endothelial cells. In this study, we uncover a negative feedback loop between DLC1 expression and YAP activity during collective migration and sprouting angiogenesis. In particular, our study demonstrates that signaling via the RhoGAP domain of DLC1 reduces YAP's nuclear localization and its transcriptional activity. Moreover, the RhoGAP activity of DLC1 is essential for YAP-mediated cellular processes, including the regulation of focal adhesion turnover, traction forces, and sprouting angiogenesis. We show that DLC1 restricts intracellular cytoskeletal tension by inhibiting Rho signaling at the basal adhesion plane, consequently reducing nuclear YAP localization. Collectively, these findings underscore the significance of DLC1 expression levels and its function in mitigating intracellular tension as a pivotal mechanotransductive feedback mechanism that finely tunes YAP activity throughout the process of sprouting angiogenesis.
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Affiliation(s)
- Aukie Hooglugt
- Amsterdam UMC, University of Amsterdam, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
- Amsterdam UMC, VU University Medical Center, Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Miesje M van der Stoel
- Amsterdam UMC, University of Amsterdam, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Apeksha Shapeti
- KU Leuven, Department of Mechanical Engineering, Biomechanics section, Leuven, Belgium
| | - Beau F Neep
- Amsterdam UMC, University of Amsterdam, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
- Amsterdam UMC, VU University Medical Center, Department of Pulmonary Medicine, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Annett de Haan
- Amsterdam UMC, University of Amsterdam, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Hans van Oosterwyck
- KU Leuven, Department of Mechanical Engineering, Biomechanics section, Leuven, Belgium
- KU Leuven, Prometheus, Division of Skeletal Tissue Engineering, Leuven, Belgium
| | - Reinier A Boon
- Amsterdam UMC, VU University Medical Center, Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein-Main, Berlin, Germany
- Goethe University, Institute of Cardiovascular Regeneration, Frankfurt am Main, Germany
| | - Stephan Huveneers
- Amsterdam UMC, University of Amsterdam, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
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