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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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Waeijen-Smit K, DiGiandomenico A, Bonnell J, Ostridge K, Gehrmann U, Sellman BR, Kenny T, van Kuijk S, Peerlings D, Spruit MA, Simons SO, Houben-Wilke S, Franssen FME. Early diagnostic BioMARKers in exacerbations of chronic obstructive pulmonary disease: protocol of the exploratory, prospective, longitudinal, single-centre, observational MARKED study. BMJ Open 2023; 13:e068787. [PMID: 36868599 PMCID: PMC9990620 DOI: 10.1136/bmjopen-2022-068787] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
INTRODUCTION Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) play a pivotal role in the burden and progressive course of chronic obstructive pulmonary disease (COPD). As such, disease management is predominantly based on the prevention of these episodes of acute worsening of respiratory symptoms. However, to date, personalised prediction and early and accurate diagnosis of AECOPD remain unsuccessful. Therefore, the current study was designed to explore which frequently measured biomarkers can predict an AECOPD and/or respiratory infection in patients with COPD. Moreover, the study aims to increase our understanding of the heterogeneity of AECOPD as well as the role of microbial composition and hostmicrobiome interactions to elucidate new disease biology in COPD. METHODS AND ANALYSIS The 'Early diagnostic BioMARKers in Exacerbations of COPD' study is an exploratory, prospective, longitudinal, single-centre, observational study with 8-week follow-up enrolling up to 150 patients with COPD admitted to inpatient pulmonary rehabilitation at Ciro (Horn, the Netherlands). Respiratory symptoms, vitals, spirometry and nasopharyngeal, venous blood, spontaneous sputum and stool samples will be frequently collected for exploratory biomarker analysis, longitudinal characterisation of AECOPD (ie, clinical, functional and microbial) and to identify host-microbiome interactions. Genomic sequencing will be performed to identify mutations associated with increased risk of AECOPD and microbial infections. Predictors of time-to-first AECOPD will be modelled using Cox proportional hazards' regression. Multiomic analyses will provide a novel integration tool to generate predictive models and testable hypotheses about disease causation and predictors of disease progression. ETHICS AND DISSEMINATION This protocol was approved by the Medical Research Ethics Committees United (MEC-U), Nieuwegein, the Netherlands (NL71364.100.19). TRIAL REGISTRATION NUMBER NCT05315674.
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Affiliation(s)
- Kiki Waeijen-Smit
- Department of Research and Development, CIRO, Horn, Netherlands
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health Medicine and Life Sciences, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Antonio DiGiandomenico
- Discovery Microbiome, Vaccines and Immune Therapies, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, USA
| | - Jessica Bonnell
- Discovery Microbiome, Vaccines and Immune Therapies, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, USA
| | - Kristoffer Ostridge
- Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Ulf Gehrmann
- Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Bret R Sellman
- Discovery Microbiome, Vaccines and Immune Therapies, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, USA
| | - Tara Kenny
- Discovery Microbiome, Vaccines and Immune Therapies, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, USA
| | - Sander van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht Universitair Medisch Centrum+, Maastricht, Netherlands
| | | | - Martijn A Spruit
- Department of Research and Development, CIRO, Horn, Netherlands
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health Medicine and Life Sciences, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Sami O Simons
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health Medicine and Life Sciences, Maastricht University Medical Centre+, Maastricht, Netherlands
| | | | - Frits M E Franssen
- Department of Research and Development, CIRO, Horn, Netherlands
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health Medicine and Life Sciences, Maastricht University Medical Centre+, Maastricht, Netherlands
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Nazarbahjat N, Kadir FA, Ariffin A, Abdulla MA, Abdullah Z, Yehye WA. Antioxidant Properties and Gastroprotective Effects of 2-(Ethylthio)Benzohydrazones on Ethanol-Induced Acute Gastric Mucosal Lesions in Rats. PLoS One 2016; 11:e0156022. [PMID: 27272221 PMCID: PMC4896442 DOI: 10.1371/journal.pone.0156022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 05/09/2016] [Indexed: 01/26/2023] Open
Abstract
A series of new 2-(ethylthio)benzohydrazone derivatives (1-6) were prepared and characterised by IR, 1H NMR, and 13C NMR spectroscopy and mass spectrometry. The newly prepared compounds were screened for their in vitro antioxidant activities using free radical scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays. Among them, most powerful antioxidant, compound 1 has been selected in order to illustrate anti-ulcer effect on ethanol-induced gastric mucosal lesions in rats. Four groups of Sprague Dawley rats were respectively treated with 10% Tween 20 as ulcer control group, 20 mg/kg omeprazole as reference group, 50 mg/kg and 100 mg/kg compound 1 as experimental animals. Macroscopically, ulcer control group showed extensive hemorrhagic lesions of gastric mucosa compared with omeprazole or compound 1. Rats pre-treated with compound 1 showed increased in gastric pH and gastric mucus. Histologically, ulcer control group showed severe damage to gastric mucosa with edema and leucocytes infiltration of submucosal layer. In immunohistochemical analysis, rats which were pre-treated with compound 1 showed up-regulation of HSP70 and down-regulation of Bax proteins. In conclusion, the gastroprotective effect of compound 1 may be due to its antioxidant activity, and/or due to up-regulation of HSP70 and down-regulation of Bax protein in stained tissue section.
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Affiliation(s)
- Nafal Nazarbahjat
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Farkaad A. Kadir
- Division of Human Biology, Faculty of Medicine, International Medical University, Kuala Lumpur, Malaysia
| | - Azhar Ariffin
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Mahmood A. Abdulla
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zanariah Abdullah
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Wageeh A. Yehye
- Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, Block 3A, Institute of Postgraduate Studies Building, Kuala Lumpur, Malaysia
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Ahmed RH, Huri HZ, Al-Hamodi Z, Salem SD, Al-absi B, Muniandy S. Association of DPP4 Gene Polymorphisms with Type 2 Diabetes Mellitus in Malaysian Subjects. PLoS One 2016; 11:e0154369. [PMID: 27111895 PMCID: PMC4844141 DOI: 10.1371/journal.pone.0154369] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/12/2016] [Indexed: 12/15/2022] Open
Abstract
Background Genetic polymorphisms of the Dipeptidyl Peptidase 4 (DPP4) gene may play a role in the etiology of type 2 diabetes mellitus (T2DM). This study aimed to investigate the possible association of single nucleotide polymorphisms (SNPs) of the DPP4 gene in Malaysian subjects with T2DM and evaluated whether they had an effect on the serum levels of soluble dipeptidyl peptidase 4 (sDPP-IV). Method Ten DPP4 SNPs were genotyped by TaqMan genotyping assays in 314 subjects with T2DM and 235 controls. Of these, 71 metabolic syndrome (MetS) subjects were excluded from subsequent analysis. The odds ratios (ORs) and their 95% confidence interval (CIs) were calculated using multiple logistic regression for the association between the SNPs of DPP4 and T2DM. In addition, the serum levels of sDPP-IV were investigated to evaluate the association of the SNPs of DPP4 with the sDPP-IV levels. Results Dominant, recessive, and additive genetic models were employed to test the association of DPP4 polymorphisms with T2DM, after adjusting for age, race, gender and BMI. The rs12617656 was associated with T2DM in Malaysian subjects in the recessive genetic model (OR = 1.98, p = 0.006), dominant model (OR = 1.95, p = 0.008), and additive model (OR = 1.63, p = 0.001). This association was more pronounced among Malaysian Indians, recessive (OR = 3.21, p = 0.019), dominant OR = 3.72, p = 0.003) and additive model (OR = 2.29, p = 0.0009). The additive genetic model showed that DPP4 rs4664443 and rs7633162 polymorphisms were associated with T2DM (OR = 1.53, p = 0.039), and (OR = 1.42, p = 0.020), respectively. In addition, the rs4664443 G>A polymorphism was associated with increased sDPP-IV levels (p = 0.042) in T2DM subjects. Conclusions DPP4 polymorphisms were associated with T2DM in Malaysian subjects, and linked to variations in sDPP-IV levels. In addition, these associations were more pronounced among Malaysian Indian subjects.
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Affiliation(s)
- Radwan H. Ahmed
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail: (RHA); (SM)
| | - Hasniza Zaman Huri
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Clinical Investigation Centre, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Zaid Al-Hamodi
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Sana’a University, Sana’a, Yemen
| | - Sameer D. Salem
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Sana’a University, Sana’a, Yemen
| | - Boshra Al-absi
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sekaran Muniandy
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail: (RHA); (SM)
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