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Rorat M, Zarębska-Michaluk D, Kowalska J, Kujawa K, Rogalska M, Kozielewicz D, Lorenc B, Sikorska K, Czupryna P, Bolewska B, Maciukajć J, Piekoś T, Podlasin R, Dworzańska A, Mazur W, Brzdęk M, Szymanek-Pasternak A, Flisiak R. The Course of COVID-19 in Patients with Systemic Autoimmune Rheumatic Diseases. J Clin Med 2022; 11:jcm11247342. [PMID: 36555957 PMCID: PMC9781406 DOI: 10.3390/jcm11247342] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Patients with systemic autoimmune rheumatic disease (SARD) have increased susceptibility to viral infections, including SARS-CoV-2. The aim of this study was to analyse the SARD patient population with COVID-19 (coronavirus disease 2019) in terms of baseline characteristics, severity, course and outcomes of the disease compared with the non-SARD group, and to identify factors associated with prognosis, including remdesivir therapy efficacy. Retrospective study comprised 8220 COVID-19 cases from the SARSTer database, including 185 with SARD. Length of hospitalisation, duration of oxygen therapy, mortality and the need for HFNO (high-flow nasal oxygen) and/or NIV (noninvasive ventilation) were significantly higher in the SARD versus non-SARD group. There was no difference in clinical features on admission to hospital. Patients with SARD were older and more likely to have cardiovascular, pulmonary and chronic kidney diseases. Age, the presence of cardiovascular disease, more severe conditions on admission and higher inflammatory marker values were found to be risk factors for death in the SARD group. In patients with SARD treated with remdesivir, there was a trend towards improved mortality but without statistical significance. Length of hospitalisation, 28-day mortality and the need for HFNO and/or NIV were higher in the SARD group. These patients often had other chronic diseases and were older.
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Affiliation(s)
- Marta Rorat
- Department of Forensic Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland
- Correspondence:
| | | | - Justyna Kowalska
- Department of Adults’ Infectious Diseases, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Krzysztof Kujawa
- Statistical Analysis Centre, Wroclaw Medical University, 50-368 Wroclaw, Poland
| | - Magdalena Rogalska
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, 15-089 Białystok, Poland
| | - Dorota Kozielewicz
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 87-100 Torun, Poland
| | - Beata Lorenc
- Pomeranian Center of Infectious Diseases, Department of Infectious Diseases, 80-210 Gdansk, Poland
| | - Katarzyna Sikorska
- Division of Tropical Medicine and Epidemiology, Department of Tropical Medicine and Parasitology, Faculty of Health Sciences, Medical University of Gdańsk, 80–210 Gdańsk, Poland
- Division of Tropical and Parasitic Diseases, Department of Tropical Medicine and Parasitology, Faculty of Health Sciences, Medical University of Gdańsk, 80–210 Gdańsk, Poland
| | - Piotr Czupryna
- Department of Infectious Diseases and Neuroinfections, Medical University of Białystok, 15-089 Białystok, Poland
| | - Beata Bolewska
- Department of Infectious Diseases, Poznan University of Medical Sciences, 61-701 Poznan, Poland
| | - Jadwiga Maciukajć
- Department of Infectious Diseases, District Healthcare Center, 27-200 Starachowice, Poland
| | - Tomasz Piekoś
- Independent Public Healthcare Center in Puławy, Department of Infectious Diseases and Observation for Adults, 24-100 Puławy, Poland
| | - Regina Podlasin
- IV-th Department, Hospital for Infectious Diseases, 01-301 Warsaw, Poland
| | - Anna Dworzańska
- Department of Infectious Diseases and Hepatology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Włodzimierz Mazur
- Clinical Department of Infectious Diseases in Chorzów, Medical University of Silesia, 41-500 Katowice, Poland
| | - Michał Brzdęk
- Department of Infectious Diseases, Jan Kochanowski University, 25-369 Kielce, Poland
| | - Anna Szymanek-Pasternak
- Department of Infectious Diseases and Hepatology, Wrocław Medical University, 50-367 Wrocław, Poland
| | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, 15-089 Białystok, Poland
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Terao R, Fujino R, Ahmed T. Risk Factors and Treatment Strategy for Retinal Vascular Occlusive Diseases. J Clin Med 2022; 11:6340. [PMID: 36362567 PMCID: PMC9656338 DOI: 10.3390/jcm11216340] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/17/2022] [Accepted: 10/24/2022] [Indexed: 07/30/2023] Open
Abstract
Retinal occlusive diseases are common diseases that can lead to visual impairment. Retinal artery occlusion and retinal vein occlusion are included in the clinical entity, but they have quite different pathophysiologies. Retinal artery occlusion is an emergent eye disorder. Retinal artery occlusion is mainly caused by thromboembolism, which frequently occurs in conjunction with life-threatening stroke and cardiovascular diseases. Therefore, prompt examinations and interventions for systemic vascular diseases are often necessary for these patients. Retinal vein occlusion is characterized by retinal hemorrhage and ischemia, which may impair visual function via several complications such as macular edema, macular ischemia, vitreous hemorrhage, and neovascular glaucoma. Even though anti-vascular endothelial growth factor therapy is the current established first-line of treatment for retinal vein occlusion, several clinical studies have been performed to identify better treatment protocols and new therapeutic options. In this review, we summarize the current findings and advances in knowledge regarding retinal occlusive diseases, particularly focusing on recent studies, in order to provide an update for a better understanding of its pathogenesis.
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Affiliation(s)
- Ryo Terao
- Department of Ophthalmology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Ryosuke Fujino
- Department of Ophthalmology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
| | - Tazbir Ahmed
- Department of Ophthalmology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
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Haibel H, Poddubnyy D, Angermair S, Allers K, Vahldiek JL, Schumann M, Schneider T. Successful treatment of severe COVID-19 pneumonia, a case series with simultaneous interleukin-1 and interleukin-6 blockade with 1-month follow-up. Ther Adv Musculoskelet Dis 2022; 14:1759720X221116405. [PMID: 36071720 PMCID: PMC9444821 DOI: 10.1177/1759720x221116405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 07/12/2022] [Indexed: 11/17/2022] Open
Abstract
Interleukin (IL)-6 and IL-1 blockade showed beneficial results in patients with severe COVID-19 pneumonia and evidence of cytokine release at the early disease stage. Here, we report outcomes of open-label therapy with a combination of blocking IL-6 with tocilizumab 8 mg/kg up to 800 mg and IL-1 receptor antagonist anakinra 100–300 mg over 3–5 days. Thirty-one adult patients with severe COVID-19 pneumonia and signs of cytokine release, mean age 54 (30–79) years, 5 female, 26 male, and mean symptom duration 6 (3–10) days were treated. Patients with more than 10 days of symptoms, evidence of bacterial infection/elevated procalcitonin and other severe lung diseases were excluded. Computed tomography (CT) scans of the lung were performed initially and after 1 month; inflammatory activity was assessed on a scale 0–25. Twenty-five patients survived without intubation and mechanical lung ventilation, two patients died. C-reactive protein decreased in 19/31 patients to normal ranges. The mean activity CT score decreased from 14 (8–20) to 6 (0–16, n = 16). In conclusion, most of our patients recovered fast and sustained, indicating that early interruption of cytokine release might be very effective in preventing patients from mechanical ventilation, death, and long-term damage.
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Affiliation(s)
- Hildrun Haibel
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-University Medicine Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Denis Poddubnyy
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Stefan Angermair
- Department of Anestesiology and Surgical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Kristina Allers
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Janis L Vahldiek
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Schumann
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Thomas Schneider
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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Khan MS, Prakash J, Banerjee S, Bhattacharya PK, Kumar R, Nirala DK. High-flow Nasal Oxygen Therapy in COVID-19 Critically Ill Patients with Acute Hypoxemic Respiratory Failure: A Prospective Observational Cohort Study. Indian J Crit Care Med 2022; 26:596-603. [PMID: 35719441 PMCID: PMC9160615 DOI: 10.5005/jp-journals-10071-24167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Coronavirus disease-2019 (COVID-19) is prone to acute hypoxemic respiratory failure (AHRF). Because tracheal intubation is associated with a higher risk of death in these patients, AHRF employs high-flow nasal oxygen therapy (HFNOT). The goal of this study was to assess the effect of HFNOT on oxygenation status as well as different predictors of HFNOT failure. Methods A prospective observational cohort study was conducted in COVID-positive critically ill adult patients (age >18 years) with AHRF, who were unable to maintain SpO2 >90% on a non-rebreathing face mask at an oxygen flow ≥15 L/minute. Respiratory variables (PaO2/FiO2, SpO2, and RR) before HFNOT (baseline) and then at 1 hour, 6 hours, 7th day, and 14th day after HFNOT application were recorded. Borg CR10 scale and visual analogue scale were used to evaluate the subjective sensation of dyspnea and comfort level, respectively. As needed, Student's t, Mann-Whitney U, or Wilcoxon signed-rank tests were performed. To find parameters linked to HFNOT failure, multivariate logistic regression and receiver operating characteristic (ROC) analysis were employed. Results A total of 114 patients were enrolled in the study, with an HFNOT failure rate of 29%. The median PaO2/FiO2 ratio at baseline (before the initiation of HFNOT) was 99.5 (80-110) which significantly increased at various time points (1 hour, 6 hours, 7th day, and 14th day) after HFNOT initiation in the successful group. Patients reported significant improvement in sensation of breathlessness [9 (8-10), 3 (2-4); p <0.001] as well as in comfort level [2 (1-2), 8 (4-9); p <0.001]. Multivariate logistic regression analysis, sequential organ failure assessment (SOFA) score >7, acute physiology and chronic health evaluation (APACHE) II score >20, admission P/F ratio <100, D-dimer >2 mg/L, IL-6 >40 pg/mL, random blood sugar (RBS) >250 mg/dL, and 6 hours ROX Index <3.5 were independent prognostic factors of HFNOT failure. Conclusion The use of HFNOT significantly increased the oxygenation levels in COVID-19 patients with AHRF at various time periods after HFNOT beginning. Age, SOFA score, APACHE II score, ROX score, admission P/F ratio, IL-6, D-dimer, and RBS were independent prognostic factors of HFNOT failure in this cohort. How to cite this article Khan MS, Prakash J, Banerjee S, Bhattacharya PK, Kumar R, Nirala DK. High-flow Nasal Oxygen Therapy in COVID-19 Critically Ill Patients with Acute Hypoxemic Respiratory Failure: A Prospective Observational Cohort Study. Indian J Crit Care Med 2022;26(5):596-603.
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Affiliation(s)
- Mohd Saif Khan
- Department of Critical Care Medicine, Rajendra Institute Medical Sciences, Ranchi, Jharkhand, India
| | - Jay Prakash
- Department of Critical Care Medicine, Rajendra Institute Medical Sciences, Ranchi, Jharkhand, India
| | - Sudipto Banerjee
- Department of Critical Care Medicine, Rajendra Institute Medical Sciences, Ranchi, Jharkhand, India
| | - Pradip K Bhattacharya
- Department of Critical Care Medicine, Rajendra Institute Medical Sciences, Ranchi, Jharkhand, India
| | - Raman Kumar
- Department of Critical Care Medicine, Rajendra Institute Medical Sciences, Ranchi, Jharkhand, India
| | - Deepak K Nirala
- Department of Critical Care Medicine, Rajendra Institute Medical Sciences, Ranchi, Jharkhand, India
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Atienza-Mateo B, Prieto-Peña D, Vicente-Rabaneda EF, Blanco R, González-Gay MA, Castañeda S. Utility of tocilizumab in autoimmune eye diseases. Expert Opin Biol Ther 2022; 22:789-799. [DOI: 10.1080/14712598.2022.2066971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Belén Atienza-Mateo
- Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain
| | - Diana Prieto-Peña
- Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain
| | | | - Ricardo Blanco
- Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain
| | - Miguel A. González-Gay
- Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain
- Department of Medicine, University of Cantabria, Santander, Spain
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Santos Castañeda
- Rheumatology Division, Hospital de La Princesa, IIS-Princesa, Madrid, Spain
- Cátedra UAM-Roche, EPID-Future, Department of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
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Fonollosa A, Hernández-Rodríguez J, Cuadros C, Giralt L, Sacristán C, Artaraz J, Pelegrín L, Olate-Pérez Á, Romero R, Pastor-Idoate S, Sobas Bsc EM, Fernández-Fidalgo S, Abraldes MJ, Oleñik A, Insausti-García A, Torres P, Porcar C, Lorca DR, Adan A. CHARACTERIZING COVID-19-RELATED RETINAL VASCULAR OCCLUSIONS: A Case Series and Review of the Literature. Retina 2022; 42:465-475. [PMID: 34914345 DOI: 10.1097/iae.0000000000003327] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To describe clinical and ophthalmologic features and outcomes of patients with coronavirus disease-19 with retinal vascular occlusions. METHODS Retrospective multicenter case series and PubMed review of cases reported from March 2020 to September 2021. Outcome measures are as follows: type of occlusion, treatments, best-corrected visual acuity, and central macular thickness on optical coherence tomography. RESULTS Thirty-nine patients were identified. Fifteen patients with a median age of 39 (30-67) years were included in the multicenter study. Vascular occlusions included central retinal vein occlusion (12 eyes), branch retinal vein occlusion (4 eyes), and central retinal artery occlusion (2 eyes). Three cases were bilateral. Baseline best-corrected visual acuity was 20/45 (no light perception-20/20). Baseline central macular thickness was 348.64 (±83) μm. Nine eyes received anti-vascular endothelial growth factor agents, dexamethasone intravitreal implant, or both. Final best-corrected visual acuity was 20/25 (no light perception-20/20), and central macular thickness was 273.7 ± 68 μm (follow-up of 19.6 ± 6 weeks). Among the 24 cases from the literature review, retinal vein occlusion was the predominant lesion. Clinical characteristics and outcomes were similar to those found in our series. CONCLUSION Coronavirus disease-19-associated retinal vascular occlusions tend to occur in individuals younger than 60 years. Retinal vein occlusion is the most frequent occlusive event, and outcomes are favorable in most cases.
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Affiliation(s)
- Alex Fonollosa
- Department of Ophthalmology, BioCruces Bizkaia Health Research Institute, Cruces University Hospital, University of the Basque Country, Barakaldo, Spain
- Instituto Oftalmológico Bilbao, Bilbao, Spain
- Cooperative Health Network for Research in Ophthalmology (Oftared), National Institute of Health Carlos III, ISCIII, Madrid, Spain
| | - José Hernández-Rodríguez
- Vasculitis Research Unit and Clinical Unit of Autoinflammatory Diseases, Department of Autoimmune Diseases, Hospital Clínic de Barcelona, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Carlos Cuadros
- Department of Ophthalmology, BioCruces Bizkaia Health Research Institute, Cruces University Hospital, University of the Basque Country, Barakaldo, Spain
| | - Lena Giralt
- Department of Ophthalmology, BioCruces Bizkaia Health Research Institute, Cruces University Hospital, University of the Basque Country, Barakaldo, Spain
| | - Cristina Sacristán
- Department of Ophthalmology, BioCruces Bizkaia Health Research Institute, Cruces University Hospital, University of the Basque Country, Barakaldo, Spain
| | - Joseba Artaraz
- Department of Ophthalmology, BioCruces Bizkaia Health Research Institute, Cruces University Hospital, University of the Basque Country, Barakaldo, Spain
| | - Laura Pelegrín
- Department of Ophthalmology, Institut Clínic d'Oftalmologia (ICOF), Hospital Clinic de Barcelona, University of Barcelona, Institut de Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Álvaro Olate-Pérez
- Department of Ophthalmology, Institut Clínic d'Oftalmologia (ICOF), Hospital Clinic de Barcelona, University of Barcelona, Institut de Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Rosa Romero
- CIENI (Centro de Investigación en enfermedades infecciosas)-INER (Instituto Nacional de Enfermedades Respiratorias), Méjico DF, Méjico
| | - Salvador Pastor-Idoate
- Cooperative Health Network for Research in Ophthalmology (Oftared), National Institute of Health Carlos III, ISCIII, Madrid, Spain
- Clinical University Hospital of Valladolid, Valladolid, Spain
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain
| | | | | | - Maximino J Abraldes
- Cooperative Health Network for Research in Ophthalmology (Oftared), National Institute of Health Carlos III, ISCIII, Madrid, Spain
- Servicio de Oftalmología, Complexo Hospitalario Universitario de Santiago de Compostela
- Departamento de Cirugía y Especialidades Médico-Quirúrgicas, Universidad de Santiago de Compostela, Santiago de Compostela, A Coruña, España
| | | | | | - Pedro Torres
- Hospital Oftalmológico Juan Domingo Perón, Buenos Aires, Argentina
| | - Carmela Porcar
- Department of Ophthalmology, Hospital Virgen de los Lirios, Alcoy, Alicante, Spain; and
| | - Daniela Rego Lorca
- Servicio de Oftalmología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Alfredo Adan
- Department of Ophthalmology, Institut Clínic d'Oftalmologia (ICOF), Hospital Clinic de Barcelona, University of Barcelona, Institut de Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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FRAGILE-COLCOVID19: A Clinical Trial Based on Early Administration of an Oral Combination of Colchicine and Prednisone in Elderly Patients with COVID-19 in Geriatric Facilities. Clin Drug Investig 2022; 42:949-964. [PMID: 36173596 PMCID: PMC9521010 DOI: 10.1007/s40261-022-01201-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Unprotected and fragile elderly people in nursing homes experienced the highest mortality rates during the initial coronavirus disease 2019 (COVID-19) pandemic. OBJECTIVE Our aim was to study the role of two oral anti-inflammatory drugs, colchicine and prednisone, in elderly patients with COVID-19 in geriatric centers. METHODS A phase II/III, randomized, controlled, multicenter clinical trial was performed in a geriatric population comparing the efficacy and safety of an oral combination of prednisone (60 mg/day for 3 days) and colchicine (at loading doses of 1-1.5 mg/day for 3 days, followed by 0.5 mg/day for 11 days) with the standard treatment, based on intravenous dexamethasone. Primary endpoints assessed the efficacy in reducing death or the modified endpoint death/therapeutic failure to the study drugs over a 28-day period, while secondary endpoints included safety, laboratory changes, and additional therapies used. RESULTS Fifty-four patients (35 female/19 male) were enrolled, 25 (46.3%) of whom were allocated to the experimental arm and 29 (53.7%) to the control arm. At day 28, no differences in deaths were observed. The combination of mortality or therapeutic failure occurred in 12 (45.13%) patients receiving dexamethasone and 6 (28.13%) patients receiving colchicine/prednisone, resulting in a reduction of risk difference (RD) of - 17% (p = 0.17), with an average reduction of 39% (risk ratio [RR] 0.61) in patients receiving colchicine/prednisone (p = 0.25). Control patients received higher amounts of additional glucocorticoids (p = 0.0095) over a longer time frame (p = 0.0003). Colchicine/prednisone significantly reduced ferritin levels at day 14, as well as D-dimer and lactate dehydrogenase (LDH) levels at day 28. Adverse events were similar in both groups. CONCLUSIONS The combination colchicine/prednisone compared with intravenous dexamethasone has shown a remarkable trend to increase disease survival over a 28-day period in elderly patients requiring oxygen therapy in geriatric centers, without safety issues. CLINICAL TRIAL REGISTRY Clinical Trials Registration Number: NCT04492358.
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Vrachatis DA, Papathanasiou KA, Giotaki SG, Raisakis K, Kossyvakis C, Kaoukis A, Kolokathis F, Deftereos G, Iliodromitis KE, Avramides D, Bogossian H, Siasos G, Giannopoulos G, Reimers B, Lansky A, Tardif JC, Deftereos S. Immunologic Dysregulation and Hypercoagulability as a Pathophysiologic Background in COVID-19 Infection and the Immunomodulating Role of Colchicine. J Clin Med 2021; 10:5128. [PMID: 34768648 PMCID: PMC8584586 DOI: 10.3390/jcm10215128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/20/2021] [Accepted: 10/29/2021] [Indexed: 12/20/2022] Open
Abstract
In 2020, SARS-COV-2 put health systems under unprecedented resource and manpower pressure leading to significant number of deaths. Expectedly, researchers sought to shed light on the pathophysiologic background of this novel disease (COVID-19) as well as to facilitate the design of effective therapeutic modalities. Indeed, early enough the pivotal role of inflammatory and thrombotic pathways in SARS-COV-2 infection has been illustrated. The purpose of this article is to briefly present the epidemiologic and clinical features of COVID-19, analyze the pathophysiologic importance of immunologic dysregulation and hypercoagulability in developing disease complications and finally to present an up-to-date systematic review of colchicine's immunomodulating capacity in view of hindering coronavirus complications.
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Affiliation(s)
- Dimitrios A. Vrachatis
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.A.V.); (K.A.P.); (S.G.G.); (F.K.); (G.S.)
| | - Konstantinos A. Papathanasiou
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.A.V.); (K.A.P.); (S.G.G.); (F.K.); (G.S.)
| | - Sotiria G. Giotaki
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.A.V.); (K.A.P.); (S.G.G.); (F.K.); (G.S.)
| | - Konstantinos Raisakis
- Department of Cardiology, “G. Gennimatas” General Hospital of Athens, 11527 Athens, Greece; (K.R.); (C.K.); (A.K.); (G.D.); (D.A.)
| | - Charalampos Kossyvakis
- Department of Cardiology, “G. Gennimatas” General Hospital of Athens, 11527 Athens, Greece; (K.R.); (C.K.); (A.K.); (G.D.); (D.A.)
| | - Andreas Kaoukis
- Department of Cardiology, “G. Gennimatas” General Hospital of Athens, 11527 Athens, Greece; (K.R.); (C.K.); (A.K.); (G.D.); (D.A.)
| | - Fotis Kolokathis
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.A.V.); (K.A.P.); (S.G.G.); (F.K.); (G.S.)
| | - Gerasimos Deftereos
- Department of Cardiology, “G. Gennimatas” General Hospital of Athens, 11527 Athens, Greece; (K.R.); (C.K.); (A.K.); (G.D.); (D.A.)
| | - Konstantinos E. Iliodromitis
- Evangelisches Krankenhaus Hagen-Haspe, Clinic for Cardiology and Electrophysiology, 58135 Hagen, Germany; (K.E.I.); (H.B.)
- Department of Cardiology, University of Witten/Herdecke, 58455 Witten, Germany
| | - Dimitrios Avramides
- Department of Cardiology, “G. Gennimatas” General Hospital of Athens, 11527 Athens, Greece; (K.R.); (C.K.); (A.K.); (G.D.); (D.A.)
| | - Harilaos Bogossian
- Evangelisches Krankenhaus Hagen-Haspe, Clinic for Cardiology and Electrophysiology, 58135 Hagen, Germany; (K.E.I.); (H.B.)
- Department of Cardiology, University of Witten/Herdecke, 58455 Witten, Germany
| | - Gerasimos Siasos
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.A.V.); (K.A.P.); (S.G.G.); (F.K.); (G.S.)
| | - George Giannopoulos
- Medical School, Artistotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | | | - Alexandra Lansky
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA;
| | - Jean-Claude Tardif
- Montreal Heart Institute, Université de Montréal, Montreal, QC H1T 1C8, Canada;
| | - Spyridon Deftereos
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.A.V.); (K.A.P.); (S.G.G.); (F.K.); (G.S.)
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Zhang S, Asquith B, Szydlo R, Tregoning JS, Pollock KM. Peripheral T cell lymphopenia in COVID-19: potential mechanisms and impact. IMMUNOTHERAPY ADVANCES 2021; 1:ltab015. [PMID: 35965490 PMCID: PMC9364037 DOI: 10.1093/immadv/ltab015] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/10/2021] [Accepted: 06/30/2021] [Indexed: 12/23/2022] Open
Abstract
Immunopathogenesis involving T lymphocytes, which play a key role in defence against viral infection, could contribute to the spectrum of COVID-19 disease and provide an avenue for treatment. To address this question, a review of clinical observational studies and autopsy data in English and Chinese languages was conducted with a search of registered clinical trials. Peripheral lymphopenia affecting CD4 and CD8 T cells was a striking feature of severe COVID-19 compared with non-severe disease. Autopsy data demonstrated infiltration of T cells into organs, particularly the lung. Seventy-four clinical trials are on-going that could target T cell-related pathogenesis, particularly IL-6 pathways. SARS-CoV-2 infection interrupts T cell circulation in patients with severe COVID-19. This could be due to redistribution of T cells into infected organs, activation induced exhaustion, apoptosis, or pyroptosis. Measuring T cell dynamics during COVID-19 will inform clinical risk-stratification of hospitalised patients and could identify those who would benefit most from treatments that target T cells.
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Affiliation(s)
- Sifan Zhang
- Department of Infectious Disease, Imperial College London, London, UK
| | - Becca Asquith
- Department of Infectious Disease, Imperial College London, London, UK
| | - Richard Szydlo
- Centre for Haematology, Department of Immunology and Inflammation, Imperial College London, London, UK
| | - John S Tregoning
- Department of Infectious Disease, Imperial College London, London, UK
| | - Katrina M Pollock
- Department of Infectious Disease, Imperial College London, London, UK
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10
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Akturk H, Tanyildiz M, Erbey F, Tasdemir M, Celikyurt A, Gonen E, Bilge I. Macrophage Activation Syndrome in a Child with Juvenile Idiopathic Arthritis Secondary to SARS-CoV-2. J Trop Pediatr 2021; 67:6283612. [PMID: 34028559 PMCID: PMC8194557 DOI: 10.1093/tropej/fmab049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has caused a pandemic affecting many countries and millions of people. Physicians have encountered some rare and challenging cases related to SARS-CoV-2, a novel virus with still many unknowns. In order to share our experience of a such clinical picture, we present here a child with SARS-CoV-2-induced macrophage activation syndrome in the setting of juvenile idiopathic arthritis.
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Affiliation(s)
- Hacer Akturk
- Department of Pediatrics, Pediatric Infectious Disease Unit, Koc University Hospital, Istanbul, Turkey,Corresponding Author: Hacer Akturk,, Postal adress: Koc University Hospital, Department of Pediatrics, Davutpaşa Caddesi No : 4, 34010, Topkapi, Istanbul, Turkey,, E-mail: Phone: +90850 250 8 250
| | - Murat Tanyildiz
- Department of Pediatrics, Pediatric Intensive Care Unit, Koc University Hospital, Istanbul, Turkey
| | - Fatih Erbey
- Department of Pediatrics, Pediatric Hematology&Oncology Unit, Koc University Hospital, Istanbul, Turkey
| | - Mehmet Tasdemir
- Department of Pediatrics, Pediatric Nephrology Unit, Koc University Hospital, Istanbul, Turkey
| | - Aydın Celikyurt
- Department of Pediatrics, Koc University Hospital, Istanbul, Turkey
| | - Emel Gonen
- Department of Orthopedics, Koc University Hospital, Istanbul, Turkey
| | - Ilmay Bilge
- Department of Pediatrics, Pediatric Rheumotology Unit, Koc University Hospital, Istanbul, Turkey
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11
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Birlutiu V, Birlutiu RM, Chicea L. Off-label tocilizumab and adjuvant iron chelator effectiveness in a group of severe COVID-19 pneumonia patients: A single center experience. Medicine (Baltimore) 2021; 100:e25832. [PMID: 33950993 PMCID: PMC8104262 DOI: 10.1097/md.0000000000025832] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 03/19/2021] [Indexed: 01/04/2023] Open
Abstract
ABSTRACT Tocilizumab (TCZ), a monoclonal recombinant antibody against IL-6 receptor, is currently used in managing the cytokine release syndrome (CRS) that occurred in coronavirus disease 2019 (COVID-19) selected cases. The primary objective of our study was to establish the effectiveness of TCZ in patients with severe or critical severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pneumonia.We retrospectively analyzed 25 consecutive patients, admitted in the Academic Emergency Hospital Sibiu, Romania from April 1, 2020 until May 25, 2020, all with confirmed SARS-CoV-2 infection and severe pneumonia. All patients were treated off-label with TCZ, beside their standard care. Adjuvant iron chelator was associated in 11 patients.Six female and 19 male patients admitted in our hospital all with confirmed SARS-CoV-2 infection and severe pneumonia as defined by Chinese Centers for Disease Control and Prevention were enrolled in this study. Seventeen of the 25 enrolled patients (68%) were seriously ill requiring noninvasive ventilation or oxygen mask, and 8 cases (32%) were critically ill requiring invasive mechanical ventilation. All patients received TCZ, and also received hydroxychloroquine, and lopinavir/ritonavir 200/50 mg for 10 days. Adjuvant iron chelator (deferasirox - marketed as Exjade) was associated in 11 patients who had ferritin serum levels above 1000 ng/mL. No side effects were encountered during infusions or after TCZ. We observed a rapid increase in arterial oxygen saturation for 20 of the 25 cases (80%) with a favorable evolution toward healing. Survivors were younger than 60 years old (80%), had less comorbidities (10% no comorbidities, 70% with 1 or 2 comorbidities), lower serum ferritin levels (30% under 1000 ng/mL), and 50% had no serum glucose elevation. Our patients with CRS had no response to corticosteroid therapy. Five out of the 25 patients had an unfavorable evolution to death. The off-label use of TCZ in patients with severe or critically ill form of SARS-CoV-2 infection had good results in our study.Off-label use of TCZ in severe and critical cases of COVID-19 pneumonia is effective in managing the "cytokine storm." Better outcomes were noted in younger patients. Associated adjuvant iron chelators may contribute to a good outcome and needs to be confirmed in larger studies.
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Affiliation(s)
- Victoria Birlutiu
- Lucian Blaga University of Sibiu, Faculty of Medicine Sibiu, Academic Emergency Hospital Sibiu - Infectious Diseases Clinic, Sibiu
| | - Rares Mircea Birlutiu
- Lucian Blaga University of Sibiu, Faculty of Medicine Sibiu, FOISOR Clinical Hospital of Orthopedics, Traumatology, and Osteoarticular TB Bucharest
| | - Liana Chicea
- Lucian Blaga University of Sibiu, Faculty of Medicine Sibiu, Academic Emergency Hospital Sibiu - Internal Medicine Clinic, Sibiu, Romania
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12
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Hassanzadeh P. Nanotheranostics against COVID-19: From multivalent to immune-targeted materials. J Control Release 2020; 328:112-126. [PMID: 32882269 PMCID: PMC7457914 DOI: 10.1016/j.jconrel.2020.08.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 12/16/2022]
Abstract
Destructive impacts of COVID-19 pandemic worldwide necessitates taking more appropriate measures for mitigating virus spread and development of the effective theranostic agents. In general, high heterogeneity of viruses is a major challenging issue towards the development of effective antiviral agents. Regarding the coronavirus, its high mutation rates can negatively affect virus detection process or the efficiency of drugs and vaccines in development or induce drug resistance. Bioengineered nanomaterials with suitable physicochemical characteristics for site-specific therapeutic delivery, highly-sensitive nanobiosensors for detection of very low virus concentration, and real-time protections using the nanorobots can provide roadmaps towards the imminent breakthroughs in theranostics of a variety of diseases including the COVID-19. Besides revolutionizing the classical disinfection procedures, state-of-the-art nanotechnology-based approaches enable providing the analytical tools for accelerated monitoring of coronavirus and associated biomarkers or drug delivery towards the pulmonary system or other affected organs. Multivalent nanomaterials capable of interaction with multivalent pathogens including the viruses could be suitable candidates for viral detection and prevention of further infections. Besides the inactivation or destruction of the virus, functionalized nanoparticles capable of modulating patient's immune response might be of great significance for attenuating the exaggerated inflammatory reactions or development of the effective nanovaccines and medications against the virus pandemics including the COVID-19.
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Affiliation(s)
- Parichehr Hassanzadeh
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 13169-43551, Iran.
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Menzella F, Fontana M, Salvarani C, Massari M, Ruggiero P, Scelfo C, Barbieri C, Castagnetti C, Catellani C, Gibellini G, Falco F, Ghidoni G, Livrieri F, Montanari G, Casalini E, Piro R, Mancuso P, Ghidorsi L, Facciolongo N. Efficacy of tocilizumab in patients with COVID-19 ARDS undergoing noninvasive ventilation. Crit Care 2020; 24:589. [PMID: 32993751 PMCID: PMC7523258 DOI: 10.1186/s13054-020-03306-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 09/22/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The severity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is extremely variable, ranging from asymptomatic patients to those who develop severe acute respiratory distress syndrome (ARDS). As for now, there are still no really effective therapies for coronavirus disease 2019 (COVID-19). Some evidences suggest that tocilizumab (TCZ) may avoid the progression of severe COVID-19. The aim of this retrospective case-control study was to analyze the efficacy and safety of TCZ in patients with COVID-19 ARDS undergoing noninvasive mechanical ventilation (NIV). METHODS Seventy-nine consecutive patients with severe COVID-19 pneumonia and worsening acute respiratory failure (ARF) were admitted to the Pulmonology Unit of Azienda USL of Reggio Emilia-IRCCS. All patients were inflamed (elevated CRP and IL-6 levels) and received NIV at admission according to the presence of a pO2/FiO2 ratio ≤ 200 mmHg. The possibility of being treated with TCZ depended on the drug availability. The primary outcome was the in-hospital mortality rate. A secondary composite outcome of worsening was represented by the patients who died in the pulmonology unit or were intubated. RESULTS Out of 79 patients, 41 were treated with TCZ. Twenty-eight patients received intravenous (IV) TCZ and 13 patients received subcutaneous (SC) TCZ. In-hospital overall mortality rate was 38% (30/79 patients). The probabilities of dying and being intubated during the follow-up using Kaplan-Meier method were significantly lower in total patients treated with TCZ compared to those of patients not treated with TCZ (log-rank p value = 0.006 and 0.036, respectively). However, using Cox multivariate analyses adjusted for age and Charlson comorbidity index only the association with the reduced risk of being intubated or dying maintained the significance (HR 0.44, 95%CI 0.22-0.89, p = 0.022). Two patients treated with TCZ developed cavitating lung lesions during the follow-up. CONCLUSIONS This study shows that TCZ treatment may be effective in COVID-19 patients with severe respiratory impairment receiving NIV. More data on safety are required. Randomized controlled trials are needed to confirm these results.
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Affiliation(s)
- Francesco Menzella
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy.
| | - Matteo Fontana
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Carlo Salvarani
- Division of Rheumatology, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
- University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Massari
- Infectious Disease Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Patrizia Ruggiero
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Chiara Scelfo
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Chiara Barbieri
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Claudia Castagnetti
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Chiara Catellani
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Giorgia Gibellini
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Francesco Falco
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Giulia Ghidoni
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Francesco Livrieri
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Gloria Montanari
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Eleonora Casalini
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Roberto Piro
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Pamela Mancuso
- Epidemiology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Luca Ghidorsi
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
| | - Nicola Facciolongo
- Pneumology Unit, Arcispedale Santa Maria Nuova, Azienda USL-IRCCS di Reggio Emilia, 42123, Reggio Emilia, Italy
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14
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Stella A, Lamkanfi M, Portincasa P. Familial Mediterranean Fever and COVID-19: Friends or Foes? Front Immunol 2020; 11:574593. [PMID: 33072117 PMCID: PMC7530822 DOI: 10.3389/fimmu.2020.574593] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022] Open
Abstract
Familial Mediterranean Fever (FMF) and COVID-19 show a remarkable overlap of clinical symptoms and similar laboratory findings. Both are characterized by fever, abdominal/chest pain, elevation of C-reactive protein, and leukocytosis. In addition, colchicine and IL-1 inhibitors treatments that are effective in controlling inflammation in FMF patients have recently been proposed for off-label use in COVID-19 patients. Thus, FMF may resemble a milder recapitulation of the cytokine storm that is a hallmark of COVID-19 patients progressing to severe disease. We analyzed the sequence of the MEFV-encoded Pyrin protein - whose mutations cause FMF- in mammals, bats and pangolin. Intriguingly, although Pyrin is extremely conserved in species that are considered either a reservoir or intermediate hosts for SARS-CoV-2, some of the most common FMF-causing variants in humans are present as wildtype residues in these species. We propose that in humans, Pyrin may have evolved to fight highly pathogenic infections.
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Affiliation(s)
- Alessandro Stella
- Department of Human Oncology and Biomedical Sciences, University of Bari Aldo Moro, Bari, Italy
| | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Piero Portincasa
- Division of Internal Medicine, Clinica Medica "A Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
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15
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Affiliation(s)
- Miguel A González-Gay
- Division of Rheumatology and Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Santander, Spain; Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Santos Castañeda
- Division of Rheumatology. Hospital Universitario La Princesa. IIS-Princesa, Cátedra UAM-Roche (EPID-Future), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Julio Ancochea
- Division of Pneumology, Hospital Universitario La Princesa. IIS-Princesa, Director Cátedra UAM-Roche (EPID-Future), Universidad Autónoma de Madrid (UAM), Madrid, Spain.
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16
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Ancochea J, Soriano JB. COPD in Spain at the Start of a New Decade. Arch Bronconeumol 2020; 57:1-2. [PMID: 32204954 DOI: 10.1016/j.arbres.2020.01.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 01/30/2020] [Accepted: 01/30/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Julio Ancochea
- Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Universidad Autónoma de Madrid, Madrid, España; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, España
| | - Joan B Soriano
- Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Universidad Autónoma de Madrid, Madrid, España; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, España.
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