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Bertilacchi MS, Piccarducci R, Celi A, Germelli L, Romei C, Bartholmai B, Barbieri G, Giacomelli C, Martini C. Blood oxygenation state in COVID-19 patients: Unexplored role of 2,3-bisphosphoglycerate. Biomed J 2024:100723. [PMID: 38583585 DOI: 10.1016/j.bj.2024.100723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/16/2024] [Accepted: 03/29/2024] [Indexed: 04/09/2024] Open
Abstract
BACKGROUND COVID-19 reduces lung functionality causing a decrease of blood oxygen levels (hypoxemia) often related to a decreased cellular oxygenation (hypoxia). Besides lung injury, other factors are implicated in the regulation of oxygen availability such as pH, partial arterial carbon dioxide tension (PaCO2), temperature, and erythrocytic 2,3-bisphosphoglycerate (2,3-BPG) levels, all factors affecting hemoglobin saturation curve. However, few data are currently available regarding the 2,3-BPG modulation in SARS-CoV-2 affected patients at the hospital admission. MATERIAL AND METHODS Sixty-eight COVID-19 patients were enrolled at hospital admission. The lung involvement was quantified using chest-Computer Tomography (CT) analysed with automatic software (CALIPER). Haemoglobin concentrations, glycemia, and routine analysis were evaluated in the whole blood, while partial arterial oxygen tension (PaO2), PaCO2, pH, and HCO3- were assessed by arterial blood gas analysis. 2,3-BPG levels were assessed by specific immunoenzymatic assays in RBCs. RESULTS A higher percentage of interstitial lung disease (ILD) and vascular pulmonary-related structure (VRS) volume on chest-CT quantified with CALIPER had been found in COVID-19 patients with a worse disease outcome (R = 0.4342; and R = 0.3641, respectively). Furthermore, patients with lower PaO2 showed an imbalanced acid-base equilibrium (pH, p = 0.0208; PaCO2, p = 0.0496) and a higher 2,3-BPG levels (p = 0.0221). The 2,3-BPG levels were also lower in patients with metabolic alkalosis (p = 0.0012 vs. no alkalosis; and p = 0.0383 vs. respiratory alkalosis). CONCLUSIONS Overall, the data reveal a different pattern of activation of blood oxygenation compensatory mechanisms reflecting a different course of the COVID-19 disease specifically focusing on 2,3-BPG modulation.
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Affiliation(s)
| | | | - Alessandro Celi
- Department of Surgical, Medical and Molecular Pathology and Critical Care, University of Pisa, Pisa, 56126, Italy
| | | | - Chiara Romei
- Department of Radiology, Pisa University Hospital, Pisa, Italy.
| | - Brian Bartholmai
- Division of Radiology, Mayo Clinic Rochester, Rochester, MN, USA
| | - Greta Barbieri
- Department of Emergency Medicine Department, Pisa University Hospital, Italy
| | | | - Claudia Martini
- Department of Pharmacy, University of Pisa, 56126, Pisa, Italy
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Verma M, Rawat N, Rani R, Singh M, Choudhary A, Abbasi S, Kumar M, Kumar S, Tanwar A, Misir BR, Khanna S, Agrawal A, Faruq M, Rai S, Tripathi R, Kumar A, Pujani M, Bhojani M, Pandey AK, Nesari T, Prasher B. Adhatoda vasica and Tinospora cordifolia extracts ameliorate clinical and molecular markers in mild COVID-19 patients: a randomized open-label three-armed study. Eur J Med Res 2023; 28:556. [PMID: 38049897 PMCID: PMC10696694 DOI: 10.1186/s40001-023-01507-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 11/04/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND SARS-CoV-2 infections caused mild-to-moderate illness. However, a sizable portion of infected people experience a rapid progression of hyper-inflammatory and hypoxic respiratory illness that necessitates an effective and safer remedy to combat COVID-19. METHODS A total of 150 COVID-19-positive patients with no to mild symptoms, between the age groups 19-65 years were enrolled in this randomized, open-labeled three-armed clinical trial. Among them, 136 patients completed the study with RT-PCR negative reports. The patients received herbal drugs orally (Group A (Adhatoda vasica; AV; 500 mg; n = 50); Group B (Tinospora cordifolia; TC; 500 mg; n = 43), and Group C (AV + TC; 250 mg each; n = 43)) for 14 days. Clinical symptoms, vital parameters, and viral clearance were taken as primary outcomes, and biochemical, hematological parameters, cytokines, and biomarkers were evaluated at three time points as secondary outcomes. RESULTS We found that the mean viral clearance time was 13.92 days (95% confidence interval [CI] 12.85-14.99) in Group A, 13.44 days (95% confidence interval [CI] 12.14-14.74) in Group B, and 11.86 days (95% confidence interval [CI] 10.62-13.11) days in Group C. Over a period of 14 days, the mean temperature in Groups A, and B significantly decreased linearly. In Group A, during the trial period, eosinophils, and PT/INR increased significantly, while monocytes, SGOT, globulin, serum ferritin, and HIF-1α, a marker of hypoxia reduced significantly. On the other hand, in Group B hsCRP decreased at mid-treatment. Eosinophil levels increased in Group C during the treatment, while MCP-3 levels were significantly reduced. CONCLUSIONS All the patients of the three-armed interventions recovered from COVID-19 and none of them reported any adverse effects from the drugs. Group C patients (AV + TC) resulted in a quicker viral clearance as compared to the other two groups. We provide the first clinical report of AV herbal extract acting as a modifier of HIF-1α in COVID-19 patients along with a reduction in levels of ferritin, VEGF, and PT/INR as the markers of hypoxia, inflammation, and thrombosis highlighting the potential use in progression stages, whereas the TC group showed immunomodulatory effects. Trial registration Clinical Trials Database -India (ICMR-NIMS), CTRI/2020/09/028043. Registered 24th September 2020, https://www.ctri.nic.in/Clinicaltrials/pdf_generate.php?trialid=47443&EncHid=&modid=&compid=%27,%2747443det%27.
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Grants
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
- GAP-0183 Ministry of AYUSH, Government of India
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Affiliation(s)
- Mukta Verma
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- All India Institute of Ayurveda, New Delhi, India
| | - Neha Rawat
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- All India Institute of Ayurveda, New Delhi, India
| | - Ritu Rani
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Manju Singh
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Aditi Choudhary
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Sarfaraz Abbasi
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Manish Kumar
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Sachin Kumar
- ESIC Medical College and Hospital, Faridabad, Haryana, India
| | - Ankur Tanwar
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- All India Institute of Ayurveda, New Delhi, India
| | - Bishnu Raman Misir
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Sangeeta Khanna
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Anurag Agrawal
- Trivedi School of Biosciences, Ashoka University, Sonipat, Haryana, India
| | - Mohammed Faruq
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Shalini Rai
- All India Institute of Ayurveda, New Delhi, India
| | | | - Anil Kumar
- All India Institute of Ayurveda, New Delhi, India
| | - Mukta Pujani
- ESIC Medical College and Hospital, Faridabad, Haryana, India
| | | | | | | | - Bhavana Prasher
- Centre of Excellence for Applied Development of Ayurveda Prakriti and Genomics, CSIR-Institute of Genomics & Integrative Biology, Delhi, India.
- CSIR-Institute of Genomics & Integrative Biology, Delhi, India.
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3
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Trimble A, Goodacre S. Silent hypoxia in COVID-19: easy to recognise but hard to define. Emerg Med J 2023; 40:804. [PMID: 37775255 DOI: 10.1136/emermed-2023-213579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 09/04/2023] [Indexed: 10/01/2023]
Affiliation(s)
- Ashleigh Trimble
- Emergency Department, Sheffield Teaching Hospitals NHS Trust, Sheffield, UK
| | - Steve Goodacre
- School of Health and Related Research (ScHARR), The University of Sheffield, Sheffield, UK
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Presley KF, Falcucci T, Shaidani S, Fitzpatrick V, Barry J, Ly JT, Dalton MJ, Grusenmeyer TA, Kaplan DL. Engineered porosity for tissue-integrating, bioresorbable lifetime-based phosphorescent oxygen sensors. Biomaterials 2023; 301:122286. [PMID: 37643490 DOI: 10.1016/j.biomaterials.2023.122286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/05/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
Versatile silk protein-based material formats were studied to demonstrate bioresorbable, implantable optical oxygen sensors that can integrate with the surrounding tissues. The ability to continuously monitor tissue oxygenation in vivo is desired for a range of medical applications. Silk was chosen as the matrix material due to its excellent biocompatibility, its unique chemistry that facilitates interactions with chromophores, and the potential to tune degradation time without altering chemical composition. A phosphorescent Pd (II) benzoporphyrin chromophore was incorporated to impart oxygen sensitivity. Organic solvent-based processing methods using 1,1,1,3,3,3-hexafluoro-2-propanol were used to fabricate: 1) silk-chromophore films with varied thickness and 2) silk-chromophore sponges with interconnected porosity. All compositions were biocompatible and exhibited photophysical properties with oxygen sensitivities (i.e., Stern-Volmer quenching rate constants of 2.7-3.2 × 104 M-1) useful for monitoring physiological tissue oxygen levels and for detecting deviations from normal behavior (e.g., hyperoxia). The potential to tune degradation time without significantly impacting photophysical properties was successfully demonstrated. Furthermore, the ability to consistently monitor tissue oxygenation in vivo was established via a multi-week rodent study. Histological assessments indicated successful tissue integration for the sponges, and this material format responded more quickly to various oxygen challenges than the film samples.
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Affiliation(s)
- Kayla F Presley
- Air Force Research Laboratory, Materials and Manufacturing Directorate, 2179 12th Street, Wright-Patterson AFB, Ohio, 45433, United States; UES, Inc., 4401 Dayton-Xenia Road, Dayton, OH, 45432, United States.
| | - Thomas Falcucci
- Tufts University, Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, United States
| | - Sawnaz Shaidani
- Tufts University, Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, United States
| | - Vincent Fitzpatrick
- Tufts University, Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, United States
| | - Jonah Barry
- Tufts University, Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, United States
| | - Jack T Ly
- Air Force Research Laboratory, Materials and Manufacturing Directorate, 2179 12th Street, Wright-Patterson AFB, Ohio, 45433, United States; UES, Inc., 4401 Dayton-Xenia Road, Dayton, OH, 45432, United States
| | - Matthew J Dalton
- Air Force Research Laboratory, Materials and Manufacturing Directorate, 2179 12th Street, Wright-Patterson AFB, Ohio, 45433, United States
| | - Tod A Grusenmeyer
- Air Force Research Laboratory, Materials and Manufacturing Directorate, 2179 12th Street, Wright-Patterson AFB, Ohio, 45433, United States.
| | - David L Kaplan
- Tufts University, Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, United States.
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Kozlova E, Sherstyukova E, Sergunova V, Grechko A, Kuzovlev A, Lyapunova S, Inozemtsev V, Kozlov A, Chernysh A. Atomic Force Microscopy and High-Resolution Spectrophotometry for Study of Anoxemia and Normoxemia in Model Experiment In Vitro. Int J Mol Sci 2023; 24:11043. [PMID: 37446221 PMCID: PMC10341442 DOI: 10.3390/ijms241311043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
The oxygen content in the blood may decrease under the influence of various physicochemical factors and different diseases. The state of hypoxemia is especially dangerous for critically ill patients. In this paper, we describe and analyze the changes in the characteristics of red blood cells (RBCs) with decreasing levels of oxygen in the RBC suspension from normoxemia to hypoxemia/anoxemia in an in vitro model experiment. The RBCs were stored in hypoxemia/anoxemia and normoxemia conditions in closed and open tubes correspondingly. For the quantitative study of RBC parameter changes, we used atomic force microscopy, digital spectrophotometry, and nonlinear curve fitting of the optical spectra. In both closed and open tubes, at the end of the storage period by day 29, only 2% of discocytes remained, and mainly irreversible types, such as microspherocytes and ghosts, were observed. RBC hemolysis occurred at a level of 25-30%. Addition of the storage solution, depending on the concentration, changed the influence of hypoxemia on RBCs. The reversibility of the change in hemoglobin derivatives was checked. Based on the experimental data and model approach, we assume that there is an optimal level of hypoxemia at which the imbalance between the oxidative and antioxidant systems, the rate of formation of reactive oxygen species, and, accordingly, the disturbances in RBCs, will be minimal.
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Affiliation(s)
- Elena Kozlova
- Laboratory of Biophysics of Cell Membranes under Critical State, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (E.K.); (E.S.); (V.S.); (V.I.); (A.C.)
- Department of Medical and Biological Physics, Sechenov First Moscow State Medical University, 119991 Moscow, Russia;
- Faculty of Physics, Federal State Budget Educational Institution of Higher Education M.V. Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Ekaterina Sherstyukova
- Laboratory of Biophysics of Cell Membranes under Critical State, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (E.K.); (E.S.); (V.S.); (V.I.); (A.C.)
- Department of Medical and Biological Physics, Sechenov First Moscow State Medical University, 119991 Moscow, Russia;
| | - Viktoria Sergunova
- Laboratory of Biophysics of Cell Membranes under Critical State, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (E.K.); (E.S.); (V.S.); (V.I.); (A.C.)
| | - Andrey Grechko
- Administration, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (A.G.); (A.K.)
| | - Artem Kuzovlev
- Administration, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (A.G.); (A.K.)
| | - Snezhanna Lyapunova
- Laboratory of Biophysics of Cell Membranes under Critical State, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (E.K.); (E.S.); (V.S.); (V.I.); (A.C.)
| | - Vladimir Inozemtsev
- Laboratory of Biophysics of Cell Membranes under Critical State, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (E.K.); (E.S.); (V.S.); (V.I.); (A.C.)
| | - Aleksandr Kozlov
- Department of Medical and Biological Physics, Sechenov First Moscow State Medical University, 119991 Moscow, Russia;
| | - Aleksandr Chernysh
- Laboratory of Biophysics of Cell Membranes under Critical State, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (E.K.); (E.S.); (V.S.); (V.I.); (A.C.)
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6
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Gao CA, Pickens CI, Morales-Nebreda L, Wunderink RG. Clinical Features of COVID-19 and Differentiation from Other Causes of CAP. Semin Respir Crit Care Med 2023; 44:8-20. [PMID: 36646082 DOI: 10.1055/s-0042-1759889] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Community-acquired pneumonia (CAP) is a significant cause of morbidity and mortality, one of the most common reasons for infection-related death worldwide. Causes of CAP include numerous viral, bacterial, and fungal pathogens, though frequently no specific organism is found. Beginning in 2019, the COVID-19 pandemic has caused incredible morbidity and mortality. COVID-19 has many features typical of CAP such as fever, respiratory distress, and cough, and can be difficult to distinguish from other types of CAP. Here, we highlight unique clinical features of COVID-19 pneumonia such as olfactory and gustatory dysfunction, lymphopenia, and distinct imaging appearance.
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Affiliation(s)
- Catherine A Gao
- Division of Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Chiagozie I Pickens
- Division of Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Luisa Morales-Nebreda
- Division of Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Richard G Wunderink
- Division of Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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7
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Lee JH, Kanwar B, Khattak A, Balentine J, Nguyen NH, Kast RE, Lee CJ, Bourbeau J, Altschuler EL, Sergi CM, Nguyen TNM, Oh S, Sohn MG, Coleman M. COVID-19 Molecular Pathophysiology: Acetylation of Repurposing Drugs. Int J Mol Sci 2022; 23:13260. [PMID: 36362045 PMCID: PMC9656873 DOI: 10.3390/ijms232113260] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 01/14/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) induces immune-mediated type 1 interferon (IFN-1) production, the pathophysiology of which involves sterile alpha motif and histidine-aspartate domain-containing protein 1 (SAMHD1) tetramerization and the cytosolic DNA sensor cyclic-GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling pathway. As a result, type I interferonopathies are exacerbated. Aspirin inhibits cGAS-mediated signaling through cGAS acetylation. Acetylation contributes to cGAS activity control and activates IFN-1 production and nuclear factor-κB (NF-κB) signaling via STING. Aspirin and dapsone inhibit the activation of both IFN-1 and NF-κB by targeting cGAS. We define these as anticatalytic mechanisms. It is necessary to alleviate the pathologic course and take the lag time of the odds of achieving viral clearance by day 7 to coordinate innate or adaptive immune cell reactions.
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Affiliation(s)
- Jong Hoon Lee
- Science and Research Center, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Badar Kanwar
- Department of Intensive Care Unit and Neonatal Intensive Care, Hunt Regional Hospital, Greenville, 75401 TX, USA
| | - Asif Khattak
- Department of Intensive Care Unit and Neonatal Intensive Care, Hunt Regional Hospital, Greenville, 75401 TX, USA
| | - Jenny Balentine
- Department of Intensive Care Unit and Neonatal Intensive Care, Hunt Regional Hospital, Greenville, 75401 TX, USA
| | - Ngoc Huy Nguyen
- Department of Health, Phutho Province, Tran Phu Str., Viet Tri City 227, Vietnam
| | | | - Chul Joong Lee
- Department of Anesthesiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jean Bourbeau
- Respiratory Epidemiology and Clinical Research Unit, McGill University Health Centre, Montréal, QC H4A 3S5, Canada
| | - Eric L. Altschuler
- Department of Physical Medicine and Rehabilitation, Metropolitan Hospital, New York, NY 10029, USA
| | - Consolato M. Sergi
- Division of Anatomical Pathology, Children’s Hospital of Eastern Ontario (CHEO), University of Ottawa, 401 Smyth Road, Ottawa, ON K1H 8L1, Canada
| | | | - Sangsuk Oh
- Department of Food Engineering, Food Safety Laboratory, Memory Unit, Ewha Womans University, Seoul 03600, Korea
| | - Mun-Gi Sohn
- Department of Food Science, KyungHee University College of Life Science, Seoul 17104, Korea
| | - Michael Coleman
- College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
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8
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Mah AJ, Nguyen T, Ghazi Zadeh L, Shadgan A, Khaksari K, Nourizadeh M, Zaidi A, Park S, Gandjbakhche AH, Shadgan B. Optical Monitoring of Breathing Patterns and Tissue Oxygenation: A Potential Application in COVID-19 Screening and Monitoring. SENSORS (BASEL, SWITZERLAND) 2022; 22:7274. [PMID: 36236373 PMCID: PMC9573619 DOI: 10.3390/s22197274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The worldwide outbreak of the novel Coronavirus (COVID-19) has highlighted the need for a screening and monitoring system for infectious respiratory diseases in the acute and chronic phase. The purpose of this study was to examine the feasibility of using a wearable near-infrared spectroscopy (NIRS) sensor to collect respiratory signals and distinguish between normal and simulated pathological breathing. Twenty-one healthy adults participated in an experiment that examined five separate breathing conditions. Respiratory signals were collected with a continuous-wave NIRS sensor (PortaLite, Artinis Medical Systems) affixed over the sternal manubrium. Following a three-minute baseline, participants began five minutes of imposed difficult breathing using a respiratory trainer. After a five minute recovery period, participants began five minutes of imposed rapid and shallow breathing. The study concluded with five additional minutes of regular breathing. NIRS signals were analyzed using a machine learning model to distinguish between normal and simulated pathological breathing. Three features: breathing interval, breathing depth, and O2Hb signal amplitude were extracted from the NIRS data and, when used together, resulted in a weighted average accuracy of 0.87. This study demonstrated that a wearable NIRS sensor can monitor respiratory patterns continuously and non-invasively and we identified three respiratory features that can distinguish between normal and simulated pathological breathing.
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Affiliation(s)
- Aaron James Mah
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada
- Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Thien Nguyen
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institute of Health, Rockville, MD 20847, USA
| | - Leili Ghazi Zadeh
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada
| | - Atrina Shadgan
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada
| | - Kosar Khaksari
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institute of Health, Rockville, MD 20847, USA
| | - Mehdi Nourizadeh
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada
| | - Ali Zaidi
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada
| | - Soongho Park
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institute of Health, Rockville, MD 20847, USA
| | - Amir H. Gandjbakhche
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institute of Health, Rockville, MD 20847, USA
| | - Babak Shadgan
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada
- Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
- Department of Orthopedics, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
- Department of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
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