1
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Diekman CO, Thomas PJ, Wilson CG. COVID-19 and silent hypoxemia in a minimal closed-loop model of the respiratory rhythm generator. BIOLOGICAL CYBERNETICS 2024; 118:145-163. [PMID: 38884785 PMCID: PMC11289179 DOI: 10.1007/s00422-024-00989-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 03/28/2024] [Indexed: 06/18/2024]
Abstract
Silent hypoxemia, or "happy hypoxia," is a puzzling phenomenon in which patients who have contracted COVID-19 exhibit very low oxygen saturation ( SaO 2 < 80%) but do not experience discomfort in breathing. The mechanism by which this blunted response to hypoxia occurs is unknown. We have previously shown that a computational model of the respiratory neural network (Diekman et al. in J Neurophysiol 118(4):2194-2215, 2017) can be used to test hypotheses focused on changes in chemosensory inputs to the central pattern generator (CPG). We hypothesize that altered chemosensory function at the level of the carotid bodies and/or the nucleus tractus solitarii are responsible for the blunted response to hypoxia. Here, we use our model to explore this hypothesis by altering the properties of the gain function representing oxygen sensing inputs to the CPG. We then vary other parameters in the model and show that oxygen carrying capacity is the most salient factor for producing silent hypoxemia. We call for clinicians to measure hematocrit as a clinical index of altered physiology in response to COVID-19 infection.
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Affiliation(s)
- Casey O Diekman
- Department of Mathematical Sciences, New Jersey Institute of Technology, University Heights, Newark, NJ, 07102, USA.
| | - Peter J Thomas
- Department of Mathematics, Applied Mathematics and Statistics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA
| | - Christopher G Wilson
- Department of Pediatrics and Basic Sciences, Lawrence D. Longo, MD Center for Perinatal Biology, Loma Linda University, 11223 Campus St, Loma Linda, CA, 92350, USA
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2
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Tan L, Wang F, Huang Y, Fu C, Zhang H, Feng J, Xu Y, Ye X, Tang R, Chen Y, Mou L, Li R, Chen J, Xian J. The Impact of SARS-CoV-2 Infection on the Length of Stay in the Neuro-ICU:A Prospective Multicenter Cohort Study in Eight Neuro-ICU, China Between February and April 2023. Neuropsychiatr Dis Treat 2024; 20:765-775. [PMID: 38577632 PMCID: PMC10992672 DOI: 10.2147/ndt.s447887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/21/2024] [Indexed: 04/06/2024] Open
Abstract
Purpose The SARS-CoV-2 infection cases are increasing rapidly in neuro-intensive care units (neuro-ICUs) at the beginning of 2023 in China. We aimed to characterize the prevalence, risk factors, and prognosis of critically ill patients treated in neuro-ICUs. Materials and Methods In the prospective, multicenter, observational registry study, critically ill patients with intracerebral hemorrhage (ICH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI) admitted to eight Chinese neuro-ICUs between Feb 16, 2023, to Apr 30, 2023 were enrolled for the study. Mortality and ICU stay day were used as the primary outcomes. Results 131 patients were finally included and analyzed (mean age 60.36 years [SD 13.81], 64.12% male, 39.69% SARS-CoV-2 infected). The mortality is higher in the SARS-CoV-2 infection group without statistical signification (7.69% vs 5.06%, p>0.05). The length of stay (LOS) in neuro-ICUs was significantly longer among the SARS-CoV-2 infection patients (7(1-12) vs 4(1-8), p<0.01), with increased viral pneumonia occurrence (58.54% vs 7.32%, p<0.01). SARS-CoV-2 infection, surgery, and low GCS scores were independent risk factors for prolonged LOS, and respiratory/renal failure were independent risk factors for death. Conclusion Based on the present neuro-ICU cohort, SARS-CoV-2 infection was a significant risk for the prolonged LOS of neuro-critically ill patients. Trial Registration Registered with Chictr.org.cn (ChiCTR2300068355) at 16 February 2023, Prospective registration. https://www.chictr.org.cn/showproj.html?proj=188252.
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Affiliation(s)
- Liang Tan
- Department of Neurosurgery, Southwest Hospital, Army Medical University, Chongqing, People’s Republic of China
| | - Feilong Wang
- Department of Neurosurgery, Southwest Hospital, Army Medical University, Chongqing, People’s Republic of China
| | - Yi Huang
- Department of Neurosurgery, The Ninth People’s Hospital of Chongqing, Chongqing, People’s Republic of China
| | - Chuhua Fu
- Department of Neurosurgery, Xiangyang No.1 People’s Hospital, University of Medicine, Xiangyang, Hubei, People’s Republic of China
| | - Haijun Zhang
- Department of Neurosurgery, Kaifeng Central Hospital, Kaifeng, Henan, People’s Republic of China
| | - Jianfei Feng
- Department of Encephalopathy, Beibei Traditional Chinese Medical Hospital, Chongqing, People’s Republic of China
| | - Yincai Xu
- Department of Neurosurgery, Zheng Coal General Hospital, Zhengzhou, Henan Province, People’s Republic of China
| | - Xinzhen Ye
- Department of Neurosurgery, Songshan General Hospital, Chongqing, People’s Republic of China
| | - Rongrui Tang
- Department of Neurosurgery, University-Town Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yinglian Chen
- Zhuhai Brainlightning Research Institute, Zhuhai City, Guangdong, People’s Republic of China
| | - Liansheng Mou
- Department of Neurosurgery, Liangping District People’s Hospital, Chongqing, People’s Republic of China
| | - Ronghao Li
- Department of Basic Medicine, Army Medical University, Chongqing, People’s Republic of China
| | - Jingyu Chen
- Department of Neurosurgery, Southwest Hospital, Army Medical University, Chongqing, People’s Republic of China
| | - Jishu Xian
- Department of Neurosurgery, Southwest Hospital, Army Medical University, Chongqing, People’s Republic of China
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3
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El-Medany A, Adams ZH, Blythe HC, Hope KA, Kendrick AH, Abdala Sheikh AP, Paton JFR, Nightingale AK, Hart EC. Carotid body dysregulation contributes to Long COVID symptoms. COMMUNICATIONS MEDICINE 2024; 4:20. [PMID: 38374172 PMCID: PMC10876702 DOI: 10.1038/s43856-024-00447-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND The symptoms of long COVID, which include fatigue, breathlessness, dysregulated breathing, and exercise intolerance, have unknown mechanisms. These symptoms are also observed in heart failure and are partially driven by increased sensitivity of the carotid chemoreflex. As the carotid body has an abundance of ACE2 (the cell entry mechanism for SARS-CoV-2), we investigated whether carotid chemoreflex sensitivity was elevated in participants with long COVID. METHODS Non-hositalised participants with long-COVID (n = 14) and controls (n = 14) completed hypoxic ventilatory response (HVR; the measure of carotid chemoreflex sensitivity) and cardiopulmonary exercise tests. Parametric and normally distributed data were compared using Student's unpaired t-tests or ANOVA. Nonparametric equivalents were used where relevant. Peason's correlation coefficient was used to examine relationships between variables. RESULTS During cardiopulmonary exercise testing the VE/VCO2 slope (a measure of breathing efficiency) was higher in the long COVID group (37.8 ± 4.4) compared to controls (27.7 ± 4.8, P = 0.0003), indicating excessive hyperventilation. The HVR was increased in long COVID participants (-0.44 ± 0.23 l/min/ SpO2%, R2 = 0.77 ± 0.20) compared to controls (-0.17 ± 0.13 l/min/SpO2%, R2 = 0.54 ± 0.38, P = 0.0007). The HVR correlated with the VE/VCO2 slope (r = -0.53, P = 0.0036), suggesting that excessive hyperventilation may be related to carotid body hypersensitivity. CONCLUSIONS The carotid chemoreflex is sensitised in long COVID and may explain dysregulated breathing and exercise intolerance in these participants. Tempering carotid body excitability may be a viable treatment option for long COVID patients.
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Affiliation(s)
- Ahmed El-Medany
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
- Department of Cardiology, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
- Bristol Heart Institute, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Zoe H Adams
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
| | - Hazel C Blythe
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
| | - Katrina A Hope
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
- Department of Anaesthetics, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - Adrian H Kendrick
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
- Department of Respiratory Medicine, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | | | - Julian F R Paton
- Manaaki Manawa, The Centre for Heart Research, University of Auckland, Auckland, New Zealand
| | - Angus K Nightingale
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
- Bristol Heart Institute, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Emma C Hart
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
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4
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Sandu GC, Weisser G, Krämer S, Reinhard M. Relapsing TIPIC Syndrome after Administration of an mRNA-Based COVID-19 Vaccine. Case Rep Vasc Med 2023; 2023:6679200. [PMID: 37736104 PMCID: PMC10511291 DOI: 10.1155/2023/6679200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/29/2023] [Indexed: 09/23/2023] Open
Abstract
Reported vascular complications following mRNA-based COVID-19 vaccines are consisting of myocarditis, cerebral venous thrombosis, cerebral vascular thrombosis, and vaccine-induced thrombocytopenia. Here, we describe a case of a 49-year-old woman with left-sided pain above the middle common carotid artery (carotidynia) starting a few days after her second vaccination with an mRNA-based COVID-19 vaccine (Spikevax). Imaging was indicative of transient perivascular inflammation of the carotid artery (TIPIC) syndrome. The diagnostic workup for other immunologically mediated diseases was negative. The inflammation subsided after a course of prednisone and aspirin, and clinical symptoms vanished, but later mildly relapsed in the context of a viral upper respiratory tract infection other than SARS-CoV-2. Carotidynia because of TIPIC syndrome may present as an immunogenic side effect of the newly developed mRNA-based vaccinations against COVID-19. TIPIC syndrome should be considered in new-onset neck pain after vaccination.
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Affiliation(s)
| | - Gregor Weisser
- Center for Internal Medicine, Diabetology and Occupational Medicine, ZIDA Remstal, Germany
| | - Stefan Krämer
- Department of Radiology and Nuclear Medicine, Medical Center Esslingen, Academic Teaching Hospital of the University of Tübingen, Germany
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Emmi A, Tushevski A, Sinigaglia A, Barbon S, Sandre M, Stocco E, Macchi V, Antonini A, Barzon L, Porzionato A, De Caro R. ACE2 Receptor and TMPRSS2 Protein Expression Patterns in the Human Brainstem Reveal Anatomical Regions Potentially Vulnerable to SARS-CoV-2 Infection. ACS Chem Neurosci 2023. [PMID: 37172190 DOI: 10.1021/acschemneuro.3c00101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
Abstract
Angiotensin-converting enzyme 2 receptor (ACE2R) is a transmembrane protein expressed in various tissues throughout the body that plays a key role in the regulation of blood pressure. Recently, ACE2R has gained significant attention due to its involvement in the pathogenesis of COVID-19, the disease caused by the Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV-2). While ACE2 receptors serve as entry points for the novel coronavirus, Transmembrane Serine Protease 2 (TMPRSS2), an enzyme located on the cell membrane, is required for SARS-CoV-2 S protein priming. Even though numerous studies have assessed the effects of COVID-19 on the brain, very little information is available concerning the distribution of ACE2R and TMPRSS2 in the human brain, with particular regard to their topographical expression in the brainstem. In this study, we investigated the expression of ACE2R and TMPRSS2 in the brainstem of 18 adult subjects who died due to pneumonia/respiratory insufficiency. Our findings indicate that ACE2R and TMPRSS2 are expressed in neuronal and glial cells of the brainstem, particularly at the level of the vagal nuclei of the medulla and the midbrain tegmentum, thus confirming the expression and anatomical localization of these proteins within specific human brainstem nuclei. Furthermore, our findings help to define anatomically susceptible regions to SARS-CoV-2 infection in the brainstem, advancing knowledge on the neuropathological underpinnings of neurological manifestations in COVID-19.
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Affiliation(s)
- Aron Emmi
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
- Movement Disorders Unit, Padova University Hospital, 35121 Padova, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, 35121 Padova, Italy
| | - Aleksandar Tushevski
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
| | | | - Silvia Barbon
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
| | - Michele Sandre
- Movement Disorders Unit, Padova University Hospital, 35121 Padova, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, 35121 Padova, Italy
| | - Elena Stocco
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
- Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padova, 35121 Padova, Italy
| | - Veronica Macchi
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
| | - Angelo Antonini
- Movement Disorders Unit, Padova University Hospital, 35121 Padova, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, 35121 Padova, Italy
| | - Luisa Barzon
- Department of Molecular Medicine, University of Padova, 35121 Padova, Italy
| | - Andrea Porzionato
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, 35121 Padova, Italy
| | - Raffaele De Caro
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, 35121 Padova, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, 35121 Padova, Italy
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Diekman CO, Thomas PJ, Wilson CG. COVID-19 and silent hypoxemia in a minimal closed-loop model of the respiratory rhythm generator. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.19.536507. [PMID: 37131753 PMCID: PMC10153159 DOI: 10.1101/2023.04.19.536507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Silent hypoxemia, or 'happy hypoxia', is a puzzling phenomenon in which patients who have contracted COVID-19 exhibit very low oxygen saturation (SaO2 < 80%) but do not experience discomfort in breathing. The mechanism by which this blunted response to hypoxia occurs is unknown. We have previously shown that a computational model (Diekman et al., 2017, J. Neurophysiol) of the respiratory neural network can be used to test hypotheses focused on changes in chemosensory inputs to the central pattern generator (CPG). We hypothesize that altered chemosensory function at the level of the carotid bodies and/or the nucleus tractus solitarii are responsible for the blunted response to hypoxia. Here, we use our model to explore this hypothesis by altering the properties of the gain function representing oxygen sensing inputs to the CPG. We then vary other parameters in the model and show that oxygen carrying capacity is the most salient factor for producing silent hypoxemia. We call for clinicians to measure hematocrit as a clinical index of altered physiology in response to COVID-19 infection.
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Affiliation(s)
- Casey O Diekman
- Department of Mathematical Sciences, New Jersey Institute of Technology, University Heights, Newark NJ 07102
| | - Peter J Thomas
- Department of Mathematics, Applied Mathematics and Statistics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland OH 44106
| | - Christopher G Wilson
- Department of Pediatrics & Basic Sciences, Loma Linda University, Lawrence D. Longo, MD Center for Perinatal Biology, 11223 Campus St, Loma Linda CA 92350
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7
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Sklienka P, Frelich M, Burša F. Patient Self-Inflicted Lung Injury-A Narrative Review of Pathophysiology, Early Recognition, and Management Options. J Pers Med 2023; 13:593. [PMID: 37108979 PMCID: PMC10146629 DOI: 10.3390/jpm13040593] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Patient self-inflicted lung injury (P-SILI) is a life-threatening condition arising from excessive respiratory effort and work of breathing in patients with lung injury. The pathophysiology of P-SILI involves factors related to the underlying lung pathology and vigorous respiratory effort. P-SILI might develop both during spontaneous breathing and mechanical ventilation with preserved spontaneous respiratory activity. In spontaneously breathing patients, clinical signs of increased work of breathing and scales developed for early detection of potentially harmful effort might help clinicians prevent unnecessary intubation, while, on the contrary, identifying patients who would benefit from early intubation. In mechanically ventilated patients, several simple non-invasive methods for assessing the inspiratory effort exerted by the respiratory muscles were correlated with respiratory muscle pressure. In patients with signs of injurious respiratory effort, therapy aimed to minimize this problem has been demonstrated to prevent aggravation of lung injury and, therefore, improve the outcome of such patients. In this narrative review, we accumulated the current information on pathophysiology and early detection of vigorous respiratory effort. In addition, we proposed a simple algorithm for prevention and treatment of P-SILI that is easily applicable in clinical practice.
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Affiliation(s)
- Peter Sklienka
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Ostrava, 17. listopadu 1790, 70800 Ostrava, Czech Republic
- Department of Intensive Medicine, Emergency Medicine and Forensic Studies, Faculty of Medicine, University of Ostrava, Syllabova 19, 70300 Ostrava, Czech Republic
- Institute of Physiology and Pathophysiology, Department of Intensive Care Medicine and Forensic Studies, Faculty of Medicine, University of Ostrava, Syllabova 19, 70300 Ostrava, Czech Republic
| | - Michal Frelich
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Ostrava, 17. listopadu 1790, 70800 Ostrava, Czech Republic
- Department of Intensive Medicine, Emergency Medicine and Forensic Studies, Faculty of Medicine, University of Ostrava, Syllabova 19, 70300 Ostrava, Czech Republic
| | - Filip Burša
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Ostrava, 17. listopadu 1790, 70800 Ostrava, Czech Republic
- Department of Intensive Medicine, Emergency Medicine and Forensic Studies, Faculty of Medicine, University of Ostrava, Syllabova 19, 70300 Ostrava, Czech Republic
- Institute of Physiology and Pathophysiology, Department of Intensive Care Medicine and Forensic Studies, Faculty of Medicine, University of Ostrava, Syllabova 19, 70300 Ostrava, Czech Republic
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8
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Emmi A, Rizzo S, Barzon L, Sandre M, Carturan E, Sinigaglia A, Riccetti S, Della Barbera M, Boscolo-Berto R, Cocco P, Macchi V, Antonini A, De Gaspari M, Basso C, De Caro R, Porzionato A. Detection of SARS-CoV-2 viral proteins and genomic sequences in human brainstem nuclei. NPJ Parkinsons Dis 2023; 9:25. [PMID: 36781876 PMCID: PMC9924897 DOI: 10.1038/s41531-023-00467-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Neurological manifestations are common in COVID-19, the disease caused by SARS-CoV-2. Despite reports of SARS-CoV-2 detection in the brain and cerebrospinal fluid of COVID-19 patients, it is still unclear whether the virus can infect the central nervous system, and which neuropathological alterations can be ascribed to viral tropism, rather than immune-mediated mechanisms. Here, we assess neuropathological alterations in 24 COVID-19 patients and 18 matched controls who died due to pneumonia/respiratory failure. Aside from a wide spectrum of neuropathological alterations, SARS-CoV-2-immunoreactive neurons were detected in the dorsal medulla and in the substantia nigra of five COVID-19 subjects. Viral RNA was also detected by real-time RT-PCR. Quantification of reactive microglia revealed an anatomically segregated pattern of inflammation within affected brainstem regions, and was higher when compared to controls. While the results of this study support the neuroinvasive potential of SARS-CoV-2 and characterize the role of brainstem inflammation in COVID-19, its potential implications for neurodegeneration, especially in Parkinson's disease, require further investigations.
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Affiliation(s)
- Aron Emmi
- grid.5608.b0000 0004 1757 3470Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy ,grid.5608.b0000 0004 1757 3470Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padova, Italy
| | - Stefania Rizzo
- grid.5608.b0000 0004 1757 3470Department of Cardio-Thoracic-Vascular Sciences & Public Health, University of Padova, Padova, Italy
| | - Luisa Barzon
- grid.5608.b0000 0004 1757 3470Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Michele Sandre
- grid.5608.b0000 0004 1757 3470Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padova, Italy ,grid.5608.b0000 0004 1757 3470Department of Neuroscience, University of Padova, Padova, Italy
| | - Elisa Carturan
- grid.5608.b0000 0004 1757 3470Department of Cardio-Thoracic-Vascular Sciences & Public Health, University of Padova, Padova, Italy
| | - Alessandro Sinigaglia
- grid.5608.b0000 0004 1757 3470Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Silvia Riccetti
- grid.5608.b0000 0004 1757 3470Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Mila Della Barbera
- grid.5608.b0000 0004 1757 3470Department of Cardio-Thoracic-Vascular Sciences & Public Health, University of Padova, Padova, Italy
| | - Rafael Boscolo-Berto
- grid.5608.b0000 0004 1757 3470Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
| | - Patrizia Cocco
- Pathology and Histopathology Unit, Ospedali Riuniti Padova Sud, Padova, Italy
| | - Veronica Macchi
- grid.5608.b0000 0004 1757 3470Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy ,grid.5608.b0000 0004 1757 3470Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padova, Italy
| | - Angelo Antonini
- grid.5608.b0000 0004 1757 3470Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padova, Italy ,grid.5608.b0000 0004 1757 3470Movement Disorders Unit, Department of Neuroscience, University of Padova, Padova, Italy
| | - Monica De Gaspari
- grid.5608.b0000 0004 1757 3470Department of Cardio-Thoracic-Vascular Sciences & Public Health, University of Padova, Padova, Italy
| | - Cristina Basso
- grid.5608.b0000 0004 1757 3470Department of Cardio-Thoracic-Vascular Sciences & Public Health, University of Padova, Padova, Italy
| | - Raffaele De Caro
- Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy. .,Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padova, Italy.
| | - Andrea Porzionato
- grid.5608.b0000 0004 1757 3470Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy ,grid.5608.b0000 0004 1757 3470Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padova, Italy
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9
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Lazarov NE, Atanasova DY. Carotid Body Dysfunction and Mechanisms of Disease. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2023; 237:123-138. [PMID: 37946080 DOI: 10.1007/978-3-031-44757-0_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Emerging evidence shows that the carotid body (CB) dysfunction is implicated in various physiological and pathophysiological conditions. It has been revealed that the CB structure and neurochemical profile alter in certain human sympathetic-related and cardiometabolic diseases. Specifically, a tiny CB with a decrease of glomus cells and their dense-cored vesicles has been seen in subjects with sleep disordered breathing such as sudden infant death syndrome and obstructive sleep apnea patients and people with congenital central hypoventilation syndrome. Moreover, the CB degranulation is accompanied by significantly elevated levels of catecholamines and proinflammatory cytokines in such patients. The intermittent hypoxia stimulates the CB, eliciting augmented chemoreflex drive and enhanced cardiorespiratory and sympathetic responses. High CB excitability due to blood flow restrictions, oxidative stress, alterations in neurotransmitter gases and disruptions of local mediators is also observed in congestive heart failure conditions. On the other hand, the morpho-chemical changes in hypertension include an increase in the CB volume due to vasodilation, altered transmitter phenotype of chemoreceptor cells and elevated production of neurotrophic factors. Accordingly, in both humans and animal models CB denervation prevents the breathing instability and lowers blood pressure. Knowledge of the morphofunctional aspects of the CB, a better understanding of its role in disease and recent advances in human CB translational research would contribute to the development of new therapeutic strategies.
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Affiliation(s)
- Nikolai E Lazarov
- Department of Anatomy and Histology, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria.
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10
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Ulus S, Denizoğlu N, Akarçay M. Subacute and Recurrent Transient Perivascular Inflammation of the Carotid Artery (TIPIC syndrome) and Supraclavicular Lymphadenopathy Associated with Ipsilateral Intramuscular m-RNA COVID-19 Vaccine. INFECTIOUS DISEASES & CLINICAL MICROBIOLOGY 2022; 4:214-217. [PMID: 38633398 PMCID: PMC10986724 DOI: 10.36519/idcm.2022.126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 06/24/2022] [Indexed: 04/19/2024]
Abstract
We describe a case of recurrent transient perivascular inflammation of the carotid artery (TIPIC) syndrome and associated supraclavicular lymphadenopathy after ipsilateral intramuscular administration of an mRNA-based COVID-19 vaccine.
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Affiliation(s)
- Sıla Ulus
- Department of Radiology, Ataşehir Florence Nightingale Hospital, İstanbul, Türkiye
| | - Nurper Denizoğlu
- Department of Radiology, Ataşehir Florence Nightingale Hospital, İstanbul, Türkiye
| | - Mustafa Akarçay
- Department of Ear, Nose and Throat (ENT), Ataşehir Florence Nightingale Hospital, İstanbul, Türkiye
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11
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Emmi A, Antonini A, Sandre M, Baldo A, Contran M, Macchi V, Guidolin D, Porzionato A, De Caro R. Topography and distribution of adenosine A2A and dopamine D2 receptors in the human Subthalamic Nucleus. Front Neurosci 2022; 16:945574. [PMID: 36017181 PMCID: PMC9396224 DOI: 10.3389/fnins.2022.945574] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022] Open
Abstract
The human Subthalamic Nucleus (STh) is a diencephalic lens-shaped structure located ventrally to the thalamus and functionally implicated in the basal ganglia circuits. Despite recent efforts to characterize the neurochemical and functional anatomy of the STh, little to no information is available concerning the expression and distribution of receptors belonging to the dopaminergic and purinergic system in the human STh. Both systems are consistently implicated in basal ganglia physiology and pathology, especially in Parkinson’s Disease, and represent important targets for the pharmacological treatment of movement disorders. Here, we investigate the topography and distribution of A2A adenosine and D2 dopamine receptors in the human basal ganglia and subthalamic nucleus. Our findings indicate a peculiar topographical distribution of the two receptors throughout the subthalamic nucleus, while colocalization between the receptors opens the possibility for the presence of A2AR- D2R heterodimers within the dorsal and medial aspects of the structure. However, further investigation is required to confirm these findings.
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Affiliation(s)
- Aron Emmi
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padua, Italy
- Movement Disorders Unit, Neurology Clinic, University Hospital of Padova, Padua, Italy
| | - Angelo Antonini
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padua, Italy
- Movement Disorders Unit, Neurology Clinic, University Hospital of Padova, Padua, Italy
| | - Michele Sandre
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padua, Italy
- Movement Disorders Unit, Neurology Clinic, University Hospital of Padova, Padua, Italy
| | - Andrea Baldo
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
| | - Martina Contran
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
| | - Veronica Macchi
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padua, Italy
| | - Diego Guidolin
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
| | - Andrea Porzionato
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padua, Italy
- *Correspondence: Andrea Porzionato,
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua, Italy
- Center for Neurodegenerative Disease Research (CESNE), University of Padova, Padua, Italy
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