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Blankestijn JM, Abdel-Aziz MI, Baalbaki N, Bazdar S, Beekers I, Beijers RJHCG, Bloemsma LD, Cornelissen MEB, Gach D, Houweling L, Holverda S, Jacobs JJL, Jonker R, van der Lee I, Linders PMA, Mohamed Hoesein FAA, Noij LCE, Nossent EJ, van de Pol MA, Schaminee DW, Schols AMWJ, Schuurman LT, Sondermeijer B, Geelhoed JJM, van den Bergh JP, Weersink EJM, de Wit-van Wijck Y, Maitland-van der Zee AH. Long COVID exhibits clinically distinct phenotypes at 3-6 months post-SARS-CoV-2 infection: results from the P4O2 consortium. BMJ Open Respir Res 2024; 11:e001907. [PMID: 38663887 PMCID: PMC11043734 DOI: 10.1136/bmjresp-2023-001907] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Four months after SARS-CoV-2 infection, 22%-50% of COVID-19 patients still experience complaints. Long COVID is a heterogeneous disease and finding subtypes could aid in optimising and developing treatment for the individual patient. METHODS Data were collected from 95 patients in the P4O2 COVID-19 cohort at 3-6 months after infection. Unsupervised hierarchical clustering was performed on patient characteristics, characteristics from acute SARS-CoV-2 infection, long COVID symptom data, lung function and questionnaires describing the impact and severity of long COVID. To assess robustness, partitioning around medoids was used as alternative clustering. RESULTS Three distinct clusters of patients with long COVID were revealed. Cluster 1 (44%) represented predominantly female patients (93%) with pre-existing asthma and suffered from a median of four symptom categories, including fatigue and respiratory and neurological symptoms. They showed a milder SARS-CoV-2 infection. Cluster 2 (38%) consisted of predominantly male patients (83%) with cardiovascular disease (CVD) and suffered from a median of three symptom categories, most commonly respiratory and neurological symptoms. This cluster also showed a significantly lower forced expiratory volume within 1 s and diffusion capacity of the lung for carbon monoxide. Cluster 3 (18%) was predominantly male (88%) with pre-existing CVD and diabetes. This cluster showed the mildest long COVID, and suffered from symptoms in a median of one symptom category. CONCLUSIONS Long COVID patients can be clustered into three distinct phenotypes based on their clinical presentation and easily obtainable information. These clusters show distinction in patient characteristics, lung function, long COVID severity and acute SARS-CoV-2 infection severity. This clustering can help in selecting the most beneficial monitoring and/or treatment strategies for patients suffering from long COVID. Follow-up research is needed to reveal the underlying molecular mechanisms implicated in the different phenotypes and determine the efficacy of treatment.
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Affiliation(s)
- Jelle M Blankestijn
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Mahmoud I Abdel-Aziz
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
- Department of Clinical Pharmacy, Assiut University Faculty of Pharmacy, Assiut, Egypt
| | - Nadia Baalbaki
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Somayeh Bazdar
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Inés Beekers
- ORTEC, Zoetermeer, Zuid-Holland, The Netherlands
| | - Rosanne J H C G Beijers
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
- Universiteit Maastricht School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Lizan D Bloemsma
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Merel E B Cornelissen
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Debbie Gach
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
- Universiteit Maastricht School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Laura Houweling
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
- Department of Environmental Epidemiology, Utrecht University Institute for Risk Assessment Sciences, Utrecht, The Netherlands
| | | | | | - Reneé Jonker
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Ivo van der Lee
- Department of Pulmonology, Spaarne Gasthuis, Haarlem, The Netherlands
| | - Paulien M A Linders
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | | | - Lieke C E Noij
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Esther J Nossent
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Marianne A van de Pol
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Daphne W Schaminee
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Annemie M W J Schols
- Universiteit Maastricht School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Lisanne T Schuurman
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
- Universiteit Maastricht School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | | | - J J Miranda Geelhoed
- Department of Respiratory Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Joop P van den Bergh
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
- Department of Internal Medicine, VieCuri Medical Centre, Venlo, The Netherlands
| | - Els J M Weersink
- Department of Pulmonary Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | | | - Anke H Maitland-van der Zee
- Department of Respiratory Medicine, Amsterdam UMC, Amsterdam, The Netherlands
- Department of Pediatric Respiratory Medicine, Emma Childrens' Hospital UMC, Amsterdam, The Netherlands
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Abstract
This paper proposes a conceptual framework to study and evaluate the impact of 'Algorithmic Management' (AM) on worker dignity. While the literature on AM addresses many concerns that relate to the dignity of workers, a shared understanding of what worker dignity means, and a framework to study it, in the context of software algorithms at work is lacking. We advance a conceptual framework based on a Capability Approach (CA) as a route to understanding worker dignity under AM. This paper contributes to the existing AM literature which currently is mainly focused on exploitation and violations of dignity and its protection. By using a CA, we expand this focus and can evaluate the possibility that AM might also enable and promote dignity. We conclude that our CA-based conceptual framework provides a valuable means to study AM and then discuss avenues for future research into the complex relationship between worker dignity and AM systems.
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Affiliation(s)
- Laura Lamers
- Department of Industrial Engineering and Business Information Systems, Human Resource Management Research Group, University of Twente, Enschede, Netherlands
| | - Jeroen Meijerink
- Department of Industrial Engineering and Business Information Systems, Human Resource Management Research Group, University of Twente, Enschede, Netherlands
| | - Giedo Jansen
- Department of Public Administration, University of Twente, Enschede, Netherlands
| | - Mieke Boon
- Department of Philosophy, University of Twente, Enschede, Netherlands
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Wondergem CS, Kromwijk JJG, Slagter M, Vrijburg WL, Hensen EJM, Monai M, Vogt C, Weckhuysen BM. In Situ Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy of Nickel-Catalyzed Hydrogenation Reactions. Chemphyschem 2020; 21:625-632. [PMID: 31981395 PMCID: PMC7187311 DOI: 10.1002/cphc.201901162] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/18/2020] [Indexed: 11/17/2022]
Abstract
Synthesis methods to prepare lower transition metal catalysts and specifically Ni for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy (SHINERS) are explored. Impregnation, colloidal deposition, and spark ablation have been investigated as suitable synthesis routes to prepare SHINERS-active Ni/Au@SiO2 catalyst/Shell-Isolated Nanoparticles (SHINs). Ni precursors are confirmed to be notoriously difficult to reduce and the temperatures required are generally harsh enough to destroy SHINs, rendering SHINERS experiments on Ni infeasible using this approach. For colloidally synthesized Ni nanoparticles deposited on Au@SiO2 SHINs, stabilizing ligands first need to be removed before application is possible in catalysis. The required procedure results in transformation of the metallic Ni core to a fully oxidized metal nanoparticle, again too challenging to reduce at temperatures still compatible with SHINs. Finally, by use of spark ablation we were able to prepare metallic Ni catalysts directly on Au@SiO2 SHINs deposited on a Si wafer. These Ni/Au@SiO2 catalyst/SHINs were subsequently successfully probed with several molecules (i. e. CO and acetylene) of interest for heterogeneous catalysis, and we show that they could be used to study the in situ hydrogenation of acetylene. We observe the interaction of acetylene with the Ni surface. This study further illustrates the true potential of SHINERS by opening the door to studying industrially relevant reactions under in situ or operando reaction conditions.
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Affiliation(s)
- Caterina S. Wondergem
- Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Josepha J. G. Kromwijk
- Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Mark Slagter
- Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Wilbert L. Vrijburg
- Laboratory of Inorganic Materials and CatalysisEindhoven University of Technology P.O. Box 5135600 MBEindhovenThe Netherlands
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and CatalysisEindhoven University of Technology P.O. Box 5135600 MBEindhovenThe Netherlands
| | - Matteo Monai
- Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Charlotte Vogt
- Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
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