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Hilas O, Caliendo T. Intranasal Theophylline: Potential Treatment for Long COVID Olfactory Dysfunction? Ann Pharmacother 2024; 58:661-662. [PMID: 37675960 DOI: 10.1177/10600280231194960] [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] [Indexed: 09/08/2023] Open
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2
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Merle-Nguyen L, Ando-Grard O, Bourgon C, St Albin A, Jacquelin J, Klonjkowski B, Le Poder S, Meunier N. Early corticosteroid treatment enhances recovery from SARS-CoV-2 induced loss of smell in hamster. Brain Behav Immun 2024; 118:78-89. [PMID: 38367845 DOI: 10.1016/j.bbi.2024.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 02/03/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024] Open
Abstract
Among the numerous long COVID symptoms, olfactory dysfunction persists in ∼10 % of patients suffering from SARS-CoV-2 induced anosmia. Among the few potential therapies, corticoid treatment has been used for its anti-inflammatory effect with mixed success in patients. In this study, we explored its impact using hamster as an animal model. SARS-CoV-2 infected hamsters lose their smell abilities and this loss is correlated with damage of the olfactory epithelium and persistent presence of innate immunity cells. We started a dexamethasone treatment 2 days post infection, when olfaction was already impacted, until 11 days post infection when it started to recover. We observed an improvement of olfactory capacities in the animals treated with corticoid compared to those treated with vehicle. This recovery was not related to differences in the remaining damage to the olfactory epithelium, which was similar in both groups. This improvement was however correlated with a reduced inflammation in the olfactory epithelium with a local increase of the mature olfactory neuron population. Surprisingly, at 11 days post infection, we observed an increased and disorganized presence of immature olfactory neurons, especially in persistent inflammatory zones of the epithelium. This unusual population of immature olfactory neurons coincided with a strong increase of olfactory epithelium proliferation in both groups. Our results indicate that persistent inflammation of the olfactory epithelium following SARS-CoV-2 infection may alter the extent and speed of regeneration of the olfactory neuron population, and that corticoid treatment is effective to limit inflammation and improve olfaction recovery following SARS-CoV-2 infection.
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Affiliation(s)
- Laetitia Merle-Nguyen
- Unité de Virologie et Immunologie Moléculaires (UR892), INRAE, Université Paris-Saclay, Jouy-en-Josas, France
| | - Ophélie Ando-Grard
- Unité de Virologie et Immunologie Moléculaires (UR892), INRAE, Université Paris-Saclay, Jouy-en-Josas, France
| | - Clara Bourgon
- Unité de Virologie et Immunologie Moléculaires (UR892), INRAE, Université Paris-Saclay, Jouy-en-Josas, France
| | - Audrey St Albin
- Unité de Virologie et Immunologie Moléculaires (UR892), INRAE, Université Paris-Saclay, Jouy-en-Josas, France
| | - Juliette Jacquelin
- Unité de Virologie et Immunologie Moléculaires (UR892), INRAE, Université Paris-Saclay, Jouy-en-Josas, France
| | - Bernard Klonjkowski
- UMR 1161 Virologie, INRAE-ENVA-ANSES, École Nationale Vétérinaire d'Alfort, Maisons-Alfort, 94704 Paris, France
| | - Sophie Le Poder
- UMR 1161 Virologie, INRAE-ENVA-ANSES, École Nationale Vétérinaire d'Alfort, Maisons-Alfort, 94704 Paris, France
| | - Nicolas Meunier
- Unité de Virologie et Immunologie Moléculaires (UR892), INRAE, Université Paris-Saclay, Jouy-en-Josas, France.
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Qiu Y, Mo C, Chen L, Ye W, Chen G, Zhu T. Alterations in microbiota of patients with COVID-19: implications for therapeutic interventions. MedComm (Beijing) 2024; 5:e513. [PMID: 38495122 PMCID: PMC10943180 DOI: 10.1002/mco2.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/19/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) recently caused a global pandemic, resulting in more than 702 million people being infected and over 6.9 million deaths. Patients with coronavirus disease (COVID-19) may suffer from diarrhea, sleep disorders, depression, and even cognitive impairment, which is associated with long COVID during recovery. However, there remains no consensus on effective treatment methods. Studies have found that patients with COVID-19 have alterations in microbiota and their metabolites, particularly in the gut, which may be involved in the regulation of immune responses. Consumption of probiotics may alleviate the discomfort caused by inflammation and oxidative stress. However, the pathophysiological process underlying the alleviation of COVID-19-related symptoms and complications by targeting the microbiota remains unclear. In the current study, we summarize the latest research and evidence on the COVID-19 pandemic, together with symptoms of SARS-CoV-2 and vaccine use, with a focus on the relationship between microbiota alterations and COVID-19-related symptoms and vaccine use. This work provides evidence that probiotic-based interventions may improve COVID-19 symptoms by regulating gut microbiota and systemic immunity. Probiotics may also be used as adjuvants to improve vaccine efficacy.
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Affiliation(s)
- Yong Qiu
- Department of AnesthesiologyNational Clinical Research Center for Geriatrics and The Research Units of West China (2018RU012)West China HospitalSichuan UniversityChengduChina
- Laboratory of Anesthesia and Critical Care MedicineNational‐Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduChina
| | - Chunheng Mo
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOEState Key Laboratory of BiotherapyWest China Second University HospitalSichuan UniversityChengduChina
| | - Lu Chen
- Department of AnesthesiologyNational Clinical Research Center for Geriatrics and The Research Units of West China (2018RU012)West China HospitalSichuan UniversityChengduChina
- Laboratory of Anesthesia and Critical Care MedicineNational‐Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduChina
| | - Wanlin Ye
- Department of AnesthesiologyNational Clinical Research Center for Geriatrics and The Research Units of West China (2018RU012)West China HospitalSichuan UniversityChengduChina
- Laboratory of Anesthesia and Critical Care MedicineNational‐Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduChina
| | - Guo Chen
- Department of AnesthesiologyNational Clinical Research Center for Geriatrics and The Research Units of West China (2018RU012)West China HospitalSichuan UniversityChengduChina
- Laboratory of Anesthesia and Critical Care MedicineNational‐Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduChina
| | - Tao Zhu
- Department of AnesthesiologyNational Clinical Research Center for Geriatrics and The Research Units of West China (2018RU012)West China HospitalSichuan UniversityChengduChina
- Laboratory of Anesthesia and Critical Care MedicineNational‐Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduChina
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Kitsios GD, Blacka S, Jacobs JJ, Mirza T, Naqvi A, Gentry H, Murray C, Wang X, Golubykh K, Qurashi H, Dodia A, Risbano M, Benigno M, Emir B, Weinstein E, Bramson C, Jiang L, Dai F, Szigethy E, Mellors JW, Methe B, Sciurba FC, Nouraie SM, Morris A. Subphenotypes of self-reported symptoms and outcomes in long COVID: a prospective cohort study with latent class analysis. BMJ Open 2024; 14:e077869. [PMID: 38485476 PMCID: PMC10941166 DOI: 10.1136/bmjopen-2023-077869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 02/21/2024] [Indexed: 03/17/2024] Open
Abstract
OBJECTIVE To characterise subphenotypes of self-reported symptoms and outcomes (SRSOs) in postacute sequelae of COVID-19 (PASC). DESIGN Prospective, observational cohort study of subjects with PASC. SETTING Academic tertiary centre from five clinical referral sources. PARTICIPANTS Adults with COVID-19 ≥20 days before enrolment and presence of any new self-reported symptoms following COVID-19. EXPOSURES We collected data on clinical variables and SRSOs via structured telephone interviews and performed standardised assessments with validated clinical numerical scales to capture psychological symptoms, neurocognitive functioning and cardiopulmonary function. We collected saliva and stool samples for quantification of SARS-CoV-2 RNA via quantitative PCR. OUTCOMES MEASURES Description of PASC SRSOs burden and duration, derivation of distinct PASC subphenotypes via latent class analysis (LCA) and relationship with viral load. RESULTS We analysed baseline data for 214 individuals with a study visit at a median of 197.5 days after COVID-19 diagnosis. Participants reported ever having a median of 9/16 symptoms (IQR 6-11) after acute COVID-19, with muscle-aches, dyspnoea and headache being the most common. Fatigue, cognitive impairment and dyspnoea were experienced for a longer time. Participants had a lower burden of active symptoms (median 3 (1-6)) than those ever experienced (p<0.001). Unsupervised LCA of symptoms revealed three clinically active PASC subphenotypes: a high burden constitutional symptoms (21.9%), a persistent loss/change of smell and taste (20.6%) and a minimal residual symptoms subphenotype (57.5%). Subphenotype assignments were strongly associated with self-assessments of global health, recovery and PASC impact on employment (p<0.001) as well as referral source for enrolment. Viral persistence (5.6% saliva and 1% stool samples positive) did not explain SRSOs or subphenotypes. CONCLUSIONS We identified three distinct PASC subphenotypes. We highlight that although most symptoms progressively resolve, specific PASC subpopulations are impacted by either high burden of constitutional symptoms or persistent olfactory/gustatory dysfunction, requiring prospective identification and targeted preventive or therapeutic interventions.
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Affiliation(s)
- Georgios D Kitsios
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Center for Medicine and the Microbiome, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Shawna Blacka
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jana J Jacobs
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Taaha Mirza
- Internal Medicine Residency Program, UPMC in Central Pa, Harrisburg, Pennsylvania, USA
| | - Asma Naqvi
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Heather Gentry
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Cathy Murray
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Xiaohong Wang
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Konstantin Golubykh
- Internal Medicine Residency Program, UPMC in Central Pa, Harrisburg, Pennsylvania, USA
| | - Hafiz Qurashi
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Akash Dodia
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael Risbano
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | - Feng Dai
- Pfizer Inc, New York, New York, USA
| | - Eva Szigethy
- Department of Psychiatry and Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John W Mellors
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Barbara Methe
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Center for Medicine and the Microbiome, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Frank C Sciurba
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Emphysema Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Seyed Mehdi Nouraie
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Alison Morris
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Center for Medicine and the Microbiome, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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5
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von Bartheld CS, Wang L. An Explanation for Reports of Increased Prevalence of Olfactory Dysfunction With Omicron: Asymptomatic Infections. J Infect Dis 2024; 229:155-160. [PMID: 37697932 PMCID: PMC11032248 DOI: 10.1093/infdis/jiad394] [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: 07/02/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023] Open
Abstract
The prevalence of olfactory dysfunction (OD) in people infected with the Omicron variant is substantially reduced compared with previous variants. However, 4 recent studies reported a greatly increased prevalence of OD with Omicron. We provide a likely explanation for these outlier studies and reveal a major methodological flaw. When the proportion of asymptomatic infections is large, studies on the prevalence of OD will examine and report predominantly on nonrepresentative cohorts, those with symptomatic subjects, thereby artificially inflating the prevalence of OD by up to 10-fold. Estimation of the true OD prevalence requires representative cohorts that include relevant fractions of asymptomatic cases.
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Affiliation(s)
- Christopher S von Bartheld
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
- Center of Biomedical Research Excellence in Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Lingchen Wang
- School of Public Health, University of Nevada, Reno, Nevada, USA
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Meinhardt J, Streit S, Dittmayer C, Manitius RV, Radbruch H, Heppner FL. The neurobiology of SARS-CoV-2 infection. Nat Rev Neurosci 2024; 25:30-42. [PMID: 38049610 DOI: 10.1038/s41583-023-00769-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2023] [Indexed: 12/06/2023]
Abstract
Worldwide, over 694 million people have been infected with SARS-CoV-2, with an estimated 55-60% of those infected developing COVID-19. Since the beginning of the pandemic in December 2019, different variants of concern have appeared and continue to occur. With the emergence of different variants, an increasing rate of vaccination and previous infections, the acute neurological symptomatology of COVID-19 changed. Moreover, 10-45% of individuals with a history of SARS-CoV-2 infection experience symptoms even 3 months after disease onset, a condition that has been defined as 'post-COVID-19' by the World Health Organization and that occurs independently of the virus variant. The pathomechanisms of COVID-19-related neurological complaints have become clearer during the past 3 years. To date, there is no overt - that is, truly convincing - evidence for SARS-CoV-2 particles in the brain. In this Review, we put special emphasis on discussing the methodological difficulties of viral detection in CNS tissue and discuss immune-based (systemic and central) effects contributing to COVID-19-related CNS affection. We sequentially review the reported changes to CNS cells in COVID-19, starting with the blood-brain barrier and blood-cerebrospinal fluid barrier - as systemic factors from the periphery appear to primarily influence barriers and conduits - before we describe changes in brain parenchymal cells, including microglia, astrocytes, neurons and oligodendrocytes as well as cerebral lymphocytes. These findings are critical to understanding CNS affection in acute COVID-19 and post-COVID-19 in order to translate these findings into treatment options, which are still very limited.
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Affiliation(s)
- Jenny Meinhardt
- Department of Neuropathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Simon Streit
- Department of Neuropathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Carsten Dittmayer
- Department of Neuropathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Regina V Manitius
- Department of Neuropathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Helena Radbruch
- Department of Neuropathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.
| | - Frank L Heppner
- Department of Neuropathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.
- Cluster of Excellence, NeuroCure, Berlin, Germany.
- German Center for Neurodegenerative Diseases (DZNE) Berlin, Berlin, Germany.
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7
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Vidyanti AN, Satiti S, Khairani AF, Fauzi AR, Hardhantyo M, Sufriyana H, Su ECY. Symptom-based scoring technique by machine learning to predict COVID-19: a validation study. BMC Infect Dis 2023; 23:871. [PMID: 38087249 PMCID: PMC10716953 DOI: 10.1186/s12879-023-08846-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) surges, such as that which occurred when omicron variants emerged, may overwhelm healthcare systems. To function properly, such systems should balance detection and workloads by improving referrals using simple yet precise and sensitive diagnostic predictions. A symptom-based scoring system was developed using machine learning for the general population, but no validation has occurred in healthcare settings. We aimed to validate a COVID-19 scoring system using self-reported symptoms, including loss of smell and taste as major indicators. METHODS A cross-sectional study was conducted to evaluate medical records of patients admitted to Dr. Sardjito Hospital, Yogyakarta, Indonesia, from March 2020 to December 2021. Outcomes were defined by a reverse-transcription polymerase chain reaction (RT-PCR). We compared the symptom-based scoring system, as the index test, with antigen tests, antibody tests, and clinical judgements by primary care physicians. To validate use of the index test to improve referral, we evaluated positive predictive value (PPV) and sensitivity. RESULTS After clinical judgement with a PPV of 61% (n = 327/530, 95% confidence interval [CI]: 60% to 62%), confirmation with the index test resulted in the highest PPV of 85% (n = 30/35, 95% CI: 83% to 87%) but the lowest sensitivity (n = 30/180, 17%, 95% CI: 15% to 19%). If this confirmation was defined by either positive predictive scoring or antigen tests, the PPV was 92% (n = 55/60, 95% CI: 90% to 94%). Meanwhile, the sensitivity was 88% (n = 55/62, 95% CI: 87% to 89%), which was higher than that when using only antigen tests (n = 29/41, 71%, 95% CI: 69% to 73%). CONCLUSIONS The symptom-based COVID-19 predictive score was validated in healthcare settings for its precision and sensitivity. However, an impact study is needed to confirm if this can balance detection and workload for the next COVID-19 surge.
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Affiliation(s)
- Amelia Nur Vidyanti
- Department of Neurology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Department of Neurology, Dr. Sardjito General Hospital, Yogyakarta, 55281, Indonesia
| | - Sekar Satiti
- Department of Neurology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Department of Neurology, Dr. Sardjito General Hospital, Yogyakarta, 55281, Indonesia
| | - Atitya Fithri Khairani
- Department of Neurology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Department of Neurology, Dr. Sardjito General Hospital, Yogyakarta, 55281, Indonesia
| | - Aditya Rifqi Fauzi
- Department of Neurology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | - Muhammad Hardhantyo
- Center for Health Policy and Management, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Faculty of Health Science, Respati University Yogyakarta, Yogyakarta, 55281, Indonesia
| | - Herdiantri Sufriyana
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan
- Department of Medical Physiology, Faculty of Medicine, Universitas Nahdlatul Ulama Surabaya, Surabaya, 60237, Indonesia
| | - Emily Chia-Yu Su
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan.
- Clinical Big Data Research Center, Taipei Medical University Hospital, Taipei, 11031, Taiwan.
- Research Center for Artificial Intelligence in Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
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Boscolo-Rizzo P, Spinato G, Hopkins C, Marzolino R, Cavicchia A, Zucchini S, Borsetto D, Lechien JR, Vaira LA, Tirelli G. Evaluating long-term smell or taste dysfunction in mildly symptomatic COVID-19 patients: a 3-year follow-up study. Eur Arch Otorhinolaryngol 2023; 280:5625-5630. [PMID: 37715807 DOI: 10.1007/s00405-023-08227-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/31/2023] [Indexed: 09/18/2023]
Abstract
INTRODUCTION No studies have reported data on 3-year prevalence and recovery rates of self-reported COVID-19-related olfactory and gustatory dysfunction. The aim of the present study was to estimate the 3-year prevalence and recovery rate of self-reported COVID-19-related chemosensory dysfunction in a cohort of patients with antecedent mild COVID-19. METHODS This is a prospective observational study, measuring the prevalence of altered sense of smell or taste at follow-up and their variation from baseline, on adult patients consecutively assessed at Treviso and Trieste University Hospitals, who tested positive for SARS-CoV-2 RNA by polymerase chain reaction during March 2020. RESULTS Overall, out of 403 respondents, 267 patients (66.3%) reported an altered sense of smell or taste (SNOT-22 > 0) at baseline, while 56 (13.9%), 29 (7.2%), and 21 (5.2%) reported such alterations at 6-24 months, 2 years, and 3 years, respectively. Among the 267 patients with COVID-19-associated smell or taste dysfunction at baseline, 246 (92.1%) reported complete resolution at 3 years. Of the patients who still experienced smell or taste dysfunction 2 years after COVID-19, 27.6% and 37.9% recovered completely and partially, respectively, at the 3-year follow-up. CONCLUSION Among subjects with antecedent mildly symptomatic SARS-CoV-2 infection, the 3-year prevalence and recovery rate of COVID-19-related alteration in sense of smell or taste was 5% and 92%, respectively. In approximately two-thirds of patients experiencing chemosensory dysfunction still 2 years after COVID-19, it is still possible to observe a delayed complete or partial recovery after a period of 3 years, while the remaining one-third of individuals continues to have unchanged persistent chemosensory alteration.
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Affiliation(s)
- Paolo Boscolo-Rizzo
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Strada Di Fiume 447, 34149, Trieste, Italy.
| | - Giacomo Spinato
- Department of Neurosciences, Section of Otolaryngology, University of Padova, Treviso, Italy
| | | | - Riccardo Marzolino
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Strada Di Fiume 447, 34149, Trieste, Italy
| | - Angelo Cavicchia
- Department of Neurosciences, Section of Otolaryngology, University of Padova, Treviso, Italy
| | - Simone Zucchini
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Strada Di Fiume 447, 34149, Trieste, Italy
| | - Daniele Borsetto
- Department of ENT, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Jerome R Lechien
- Department of Laryngology, EpiCURA Hospital, Mons School of Medicine, University of Mons, Mons, Belgium
| | - Luigi Angelo Vaira
- Department of Medicine, Surgery and Pharmacy, Maxillofacial Surgery Operative Unit, University of Sassari, Sassari, Italy
- PhD School of Biomedical Sciences, Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Giancarlo Tirelli
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Strada Di Fiume 447, 34149, Trieste, Italy
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9
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Hujamberdieva LM, Chimed-Ochir O, Yumiya Y, Tanaka J, Ohge H, Kuwabara M, Kishita E, Kubo T. Relationship between clinical symptom profiles and COVID-19 infection status during Delta-dominant period versus Omicron-dominant period-analysis of real-world data collected in Hiroshima Prefecture, Japan. Int J Infect Dis 2023; 136:92-99. [PMID: 37717650 DOI: 10.1016/j.ijid.2023.09.007] [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: 06/05/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/19/2023] Open
Abstract
OBJECTIVES The present study investigates the diagnosis and prediction of COVID-19 based on clinical symptoms, and corresponding difference between the Delta- and Omicron-dominant periods, using data collected at polymerase chain reaction (PCR) centers in Hiroshima Prefecture, Japan. METHODS Data was collected using a J-SPEED-style COVID-19 standard data collection form. The analysis was done in two directions: calculating the likelihood ratio that clinical symptoms will manifest in "infected" versus "non-infected" individuals and calculating the diagnostic odds ratio (OR) of infection for those who have symptoms compared to those without symptoms. RESULTS COVID-19 was more strongly associated with smell and taste disorders during the Delta-dominant period, and muscle pain during the Omicron-dominant period. An age-specific analysis of likelihood and diagnostic ORs found cold-like symptoms had the lowest ability to diagnose COVID-19, and the lowest predictability of COVID-19 with children during both periods. The likelihood and diagnostic ORs of other symptoms for COVID-19 were highest in adults and lowest in those over 65. CONCLUSION Symptoms are an important indicator of COVID-19, but the association between specific symptoms and COVID-19 is dependent on the dominant variant of the virus.
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Affiliation(s)
- Lola Mamazairovna Hujamberdieva
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Odgerel Chimed-Ochir
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Yui Yumiya
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
| | - Masao Kuwabara
- Hiroshima Prefectural Center for Disease Control and Prevention, Hiroshima, Japan
| | - Eisaku Kishita
- Medical Economics Division, Health Insurance Bureau, Ministry of Health, Labour and Welfare, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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10
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Weir EM, Exten C, Gerkin RC, Munger SD, Hayes JE. Transient loss and recovery of oral chemesthesis, taste and smell with COVID-19: A small case-control series. Physiol Behav 2023; 271:114331. [PMID: 37595820 PMCID: PMC10591985 DOI: 10.1016/j.physbeh.2023.114331] [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: 03/26/2023] [Revised: 08/07/2023] [Accepted: 08/15/2023] [Indexed: 08/20/2023]
Abstract
Transient loss of smell is a common symptom of influenza and other upper respiratory infections. Loss of taste is possible but rare with these illnesses, and patient reports of 'taste loss' typically arise from a taste / flavor confusion. Thus, initial reports from COVID-19 patients of loss of taste and chemesthesis (i.e., chemical somatosensation like warming or cooling) were met with skepticism until multiple studies confirmed SARS-CoV-2 infections could disrupt these senses. Many studies have been based on self-report or on single time point assessments after acute illness was ended. Here, we describe intensive longitudinal data over 28 days from adults aged 18-45 years recruited in early 2021 (i.e., prior to the Delta and Omicron SARS-CoV-2 waves). These individuals were either COVID-19 positive or close contacts (per U.S. CDC criteria at the time of the study) in the first half of 2021. Upon enrollment, all participants were given nose clips, blinded samples of commercial jellybeans (Sour Cherry and Cinnamon), and scratch-n-sniff odor identification test cards (ScentCheckPro), which they used for daily assessments. In COVID-19 cases who enrolled on or before Day 10 of infection, Gaussian Process Regression showed two distinct measures of function - odor identification and odor intensity - declined relative to controls (exposed individuals who never developed COVID-19). Because enrollment began upon exposure, some participants became ill only after enrollment, which allowed us to capture baseline ratings, onset of loss, and recovery. Data from these four cases and four age- and sex- matched controls were plotted over 28 days to create panel plots. Variables included mean orthonasal intensity of four odors (ScentCheckPro), perceived nasal blockage, oral burn (Cinnamon jellybeans), and sourness and sweetness (Sour Cherry jellybeans). Controls exhibited stable ratings over time. By contrast, COVID-19 cases showed sharp deviations over time. Changes in odor intensity or odor identification were not explained by nasal blockage. No single pattern of taste loss or recovery was apparent, implying different taste qualities might recover at different rates. Oral burn was transiently reduced for some before recovering quickly, suggesting acute loss may be missed in datasets collected only after illness ends. Collectively, intensive daily testing shows orthonasal smell, oral chemesthesis and taste were each altered by acute SARS-CoV-2 infection. This disruption was dyssynchronous for different modalities, with variable loss and recovery rates across both modalities and individuals.
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Affiliation(s)
- Elisabeth M Weir
- Sensory Evaluation Center, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA, 16802, United States of America; Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA, 16802, United States of America
| | - Cara Exten
- Ross and Carol Nese College of Nursing, The Pennsylvania State University, University Park, PA, 16802, United States of America
| | - Richard C Gerkin
- School of Life Sciences, Arizona State University, Tempe, AZ, 85287, United States of America
| | - Steven D Munger
- Department of Pharmacology and Therapeutics, University of Florida College of Medicine, Gainesville, FL, 32610, United States of America; Center for Smell and Taste, University of Florida, Gainesville, FL, 32610, United States of America; Department of Otolaryngology, University of Florida College of Medicine, Gainesville, FL, 32610, United States of America
| | - John E Hayes
- Sensory Evaluation Center, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA, 16802, United States of America; Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA, 16802, United States of America.
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11
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AlEnazi AS, Alharbi MA, Althomaly DH, Ashoor MMS, Alwazzeh MJ, Halawani RT, Buohliqah LA, Telmesani LM. Olfactory and gustatory dysfunction, evaluation and the impact on quality of life among COVID-19 patients: a multi-centre study. Ann Med Surg (Lond) 2023; 85:5403-5409. [PMID: 37915638 PMCID: PMC10617925 DOI: 10.1097/ms9.0000000000001311] [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: 04/08/2023] [Accepted: 09/06/2023] [Indexed: 11/03/2023] Open
Abstract
Background Olfactory and gustatory dysfunctions are frequently reported symptoms among COVID-19 patients. However, several reports suggested that there might be significant variation in the prevalence and clinical picture of chemosensory dysfunction in COVID-19 patients among different population. Objective To study the prevalence of chemosensory dysfunction, recovery time and its impact on quality of life (QoL) among COVID-19 patients in Saudi population. Methods This multi-centre observational study was conducted at three COVID-19 centres in Saudi Arabia. Epidemiological and clinical data were extracted at baseline and within the 2-month post-infection. Olfactory and gustatory dysfunctions were assessed via valid taste and smell questionnaire, electronically collected via online survey. Short version of questionnaire of Olfactory disorders-negative statements (sQOD-NS) was used to assess the impact on QoL. Result Total 1734 patients [926 males and 808 females, the mean age of patients was 37.7±11.6 years] with laboratory confirmed COVID-19 were recruited for this study. Chemosensory dysfunction was reported in 56.5% cases. olfactory and gustatory dysfunctions were significantly high in females (66.2%) and age group younger than or equal to 40 years (62.2%). Among patients with olfactory dysfunction and gustatory dysfunction, recovery rate was 757 (77.2%) and 702 (71.6%). Furthermore, the recovery time was within 8 days of onset of symptoms in 53.6% and 61.3% of olfactory dysfunction and gustatory dysfunction cases, respectively. Overall mean QoL score indicated Olfactory and gustatory dysfunction has significant impact on QoL [11.3±6.2 (P value<0.001)]. female as compared to males (12.8±7). Females had significant impact on QoL (11.4±6.6) as compared to males [12.8±7 (P value<0.001)]. Conclusion Chemosensory dysfunction among Saudi population was comparable to the European data and significantly higher than Asian supporting the fact that these symptoms vary as per ethnicity. Olfactory and gustatory dysfunction significantly impaired QoL and could present as an early symptom of COVID-19. Recovery rate of these symptoms can serve as a good prognostic data for patient's counselling. Further long-term follow-up studies would lead to better understanding of prognosis and clinical outcomes.
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Affiliation(s)
| | | | | | | | - Marwan Jaber Alwazzeh
- Internal Medicine, College of Medicine, King Fahad Hospital of the University, Al-Khobar, Imam Abdulrahman Bin Faisal University, Dammam
| | - Roa Talal Halawani
- Department of Otorhinolaryngology—Head and Neck Surgery ,Ohud General Hospital, Ministry of Health, AL Medina
| | - Lamia Abdulwahab Buohliqah
- Department of Otorhinolaryngology—Head and Neck Surgery, Qatif Center Hospital, Ministry of Health, AL Qatif, Saudi Arabia
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12
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Shen Y, Peng A, Chu X, Ji Z, Li M, Bai S, Wei Z, Liang H, Zhao X, Xue G. Association of seizures with COVID-19 infection in underage during the pandemic: A systematic review and meta-analysis. Epilepsy Res 2023; 197:107223. [PMID: 37801748 DOI: 10.1016/j.eplepsyres.2023.107223] [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: 05/17/2023] [Revised: 09/09/2023] [Accepted: 09/13/2023] [Indexed: 10/08/2023]
Abstract
OBJECTIVE Coronavirus disease 2019 (COVID-19) is a contagious infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused worldwide transmission. The aim of this systematic review and meta-analysis was to investigate the morbidity and characteristics of seizures after SARS-CoV-2 infection in underage (≤18 y) and to provide valuable reference material for subsequent clinical treatment. METHODS PubMed/MEDLINE, Cochrane, and EMBASE databases were searched up to 10th May 2023. We utilized the search strategy of medical subject headings combined with entry terms to search all related literatures. RESULTS The meta-analysis was performed according to PRISMA reporting guidelines. Risk of bias was assessed using the Newcastle-Ottawa Scale (NOS) and the Agency for Healthcare Research and Quality (AHRQ). A total of 12 articles were selected, including 4153 subjects and 333 seizure-prone minor patients with COVID-19. The morbidity of seizures after SARS-CoV-2 infection in immature patients was approximately 8.2 (95 % CI, 4.7%-12.4 %). By subgroup analysis, we know that the morbidity of male, Americas, with fever and first occurrence of seizures were 4.2% (95 % CI, 0.4-10.5 %), 4.6 % (95 % CI, 0.4 %-11.7 %), 5.4 % (95 % CI, 2.6 %-9.1 %) and 3.7 % (95 % CI, 0.7 %-8.2 %), respectively. Generalized seizures are the main type of seizures (80.6 %). CONCLUSIONS Seizures can be caused by SARS-CoV-2 infection in underage groups, with a pooled morbidity of 8.2% and a higher morbidity in females, in African regions, in febrile groups and during 2022-2023. In addition, generalized seizures being the predominant seizure type.
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Affiliation(s)
- Yingjie Shen
- School of Yuncheng Clinical Medicine, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China; Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, China
| | - Anqi Peng
- School of Yuncheng Clinical Medicine, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China
| | - Xuehong Chu
- School of Yuncheng Clinical Medicine, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China
| | - Zhongjie Ji
- School of Yuncheng Clinical Medicine, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China
| | - Mengkai Li
- Department of neurosurgery, Yuncheng Central Hospital, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China
| | - Sha Bai
- Capital University of Economics and Business, Beijing, China
| | - Zhongjun Wei
- Department of neurosurgery, Yuncheng Central Hospital, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China
| | - Hongsheng Liang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, China
| | - Xujing Zhao
- Department of Pediatrics, Yuncheng Pediatrics Hospital, No. 330, Hedong East Street, Yuncheng 044000, Shanxi Province, China.
| | - Guoqiang Xue
- Department of neurosurgery, Yuncheng Central Hospital, Shanxi Medical University, No. 3690, Hedong East Street, Yuncheng 044000, Shanxi Province, China.
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Chen Y, Chen Y, Chen L, Wu H, Liu X, Yan C, Zou L. Smell, taste and chemesthesis disorders in patients with the SARS-CoV-2 during Omicron variant pandemic in China. Heliyon 2023; 9:e20715. [PMID: 37842559 PMCID: PMC10568085 DOI: 10.1016/j.heliyon.2023.e20715] [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: 06/22/2023] [Revised: 09/26/2023] [Accepted: 10/04/2023] [Indexed: 10/17/2023] Open
Abstract
Chemosensory disorders (including smell, taste and chemesthesis) are among the established symptoms of COVID-19 infection; however, new data indicate that the changes in chemosensory sensation caused by COVID-19 may differ among populations and COVID-19 variants. To date, few studies have focused on the influence of the SARS-CoV-2 Omicron variant on qualitative changes and quantitative reductions in chemosensory function in China. We conducted a cross-sectional study of patients with COVID-19 caused by the Omicron variant, to investigate the prevalence of chemosensory disorders and chemosensory function before and during infection, using an online questionnaire. A total of 1245 patients with COVID-19 completed the survey. The prevalence rates of smell, taste, and chemesthesis disorders were 69.2%, 67.7%, and 31.4%, respectively. Our data indicate that sex, age, smoking, and COVID-19-related symptoms, such as lack of appetite, dyspnea, and fatigue, may be associated with chemosensory disorders during COVID-19. Self-rating of chemosensory function revealed that patients experienced a general decline in smell, taste, and chemesthesis function. Further longitudinal research studies are needed to generate additional data based on objective assessment and investigate the factors influencing chemosensory function in COVID-19.
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Affiliation(s)
- Ying Chen
- Chemical Senses and Mental Health Lab, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuying Chen
- Chemical Senses and Mental Health Lab, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Lixin Chen
- Chemical Senses and Mental Health Lab, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Hangying Wu
- Chemical Senses and Mental Health Lab, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiang Liu
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chao Yan
- Key Laboratory of Brain Functional Genomics (MOE & STCSM), Shanghai Changning-ECNU Mental Health Center, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China
| | - Laiquan Zou
- Chemical Senses and Mental Health Lab, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
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14
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Ruggeri M, Ricci M, Pagliaro M, Gerace C. Anosmia predicts memory impairment in post-COVID-19 syndrome: results of a neuropsychological cohort study. Eur Arch Psychiatry Clin Neurosci 2023:10.1007/s00406-023-01670-2. [PMID: 37644214 DOI: 10.1007/s00406-023-01670-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 07/31/2023] [Indexed: 08/31/2023]
Abstract
Recovered COVID-19 patients frequently suffer of cognitive disorders. Several etiopathogenetic mechanisms have been considered for the brain complications in COVID-19 but results are uncertain. Amongst them, an olfactory route to SARS-CoV-2 brain infection might explain cognitive and memory disturbances in post-COVID-19 patients, given the cooccurrence of anosmia and possible underlying limbic involvement. The aims of the study are to investigate cognition of patients with post-COVID-19 syndrome, and to find clinical factors predicting cognitive and memory impairments. 18 patients with post-COVID-19 syndrome underwent neuropsychological assessment and evaluation of clinical parameters. Stepwise regression analysis was used between clinical parameters as factors and cognitive global scores as dependent variables. Since only anosmia predicted memory performances, repeated measures ANOVA of memory scores was conducted between anosmic and non-anosmic patients. We found lack of association between clinical parameters and cognitive performances. Only anosmia was a good predictor for memory performances, with anosmic subjects showing a temporo-mesial amnesic profile. Our study shows novel findings of causal association between transient anosmia during COVID-19 and memory disorders with temporo-mesial dysfunction, probably sharing a common pathophysiological mechanism, and suggesting a possible SARS-CoV 2 infection of the limbic brain via the olfactory route. In contrast to previous studies, cognitive dysfunctions were not associated with respiratory distress, comorbidity, and depression.
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Affiliation(s)
- Massimiliano Ruggeri
- Cognitive Disorders and Dementia Unit, San Camillo Forlanini Hospital, C.ne Gianicolense 57, 00152, Rome, Italy.
- Rehabilitation Center C.A.R., Rome, Italy.
| | - Monica Ricci
- Cognitive Disorders and Dementia Unit, San Camillo Forlanini Hospital, C.ne Gianicolense 57, 00152, Rome, Italy
| | | | - Carmela Gerace
- Cognitive Disorders and Dementia Unit, San Camillo Forlanini Hospital, C.ne Gianicolense 57, 00152, Rome, Italy
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15
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Hojo-Souza NS, Freitas VLDS, Guidoni DL, de Souza FSH. Clinical symptom profile of hospitalized COVID-19 Brazilian patients according to SARS-CoV-2 variants. Epidemiol Health 2023; 45:e2023079. [PMID: 37654165 PMCID: PMC10867512 DOI: 10.4178/epih.e2023079] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 08/08/2023] [Indexed: 09/02/2023] Open
Abstract
OBJECTIVES The aim of this study was to investigate the prevalence of the main symptoms in Brazilian coronavirus disease 2019 (COVID-19) patients hospitalized during 4 distinct waves, based on their infection with different severe acute respiratory disease coronavirus 2 (SARS-CoV-2) variants. METHODS This study included hospitalized patients who tested positive for SARS-CoV-2 during 15 weeks around the peak of each of 4 waves: W1, ancestral strain/B.1 lineage (May 31 to September 12, 2020); W2, Gamma/P.1 variant (January 31 to May 15, 2021); W3, Omicron variant (December 5, 2021 to March 19, 2022); and W4, BA.4/BA.5 subvariants (May 22 to September 3, 2022). Symptom data were extracted from the Brazilian Severe Acute Respiratory Syndrome Database. Relative risks were calculated, and an analysis of symptom networks was performed. RESULTS Patients who were hospitalized during the prevalence of the Gamma/P.1 variant demonstrated a higher risk, primarily for symptoms such as fatigue, abdominal pain, low oxygen saturation, and sore throat, than patients hospitalized during the first wave. Conversely, patients who were hospitalized during the predominance of the Omicron variant exhibited a lower relative risk, particularly for symptoms such as loss of smell, loss of taste, diarrhea, fever, respiratory distress, and dyspnea. Similar results were observed in COVID-19 patients who were hospitalized during the wave of the Omicron subvariants BA.4/BA.5. A symptom network analysis, conducted to explore co-occurrence patterns among different variants, revealed significant differential profiles across the 4 waves, with the most notable difference observed between the W2 and W4 networks. CONCLUSIONS Overall, the relative risks and patterns of symptom co-occurrence associated with different SARS-CoV-2 variants may reflect disease severity.
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16
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Chen YC, Wang X, Teng YS, Jia DS, Li L, Pan HG. Otolaryngology-related symptoms of COVID-19 in children in the post-epidemic era: a cross-sectional web-based survey study. Front Pediatr 2023; 11:1190734. [PMID: 37601127 PMCID: PMC10436526 DOI: 10.3389/fped.2023.1190734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/20/2023] [Indexed: 08/22/2023] Open
Abstract
Purpose China adjusted and optimized its prevention and control strategies in December 2022, and it entered a new era of the coronavirus epidemic. Here, we describe the general and otolaryngology-related symptoms of coronavirus disease 2019 (COVID-19) in children during the first pandemic in the post-epidemic era, focusing on the frequency and severity of smell and taste loss, as well as the recovery process and its influencing factors. Patients and methods From 2 January to 7 January 2023, we conducted a cross-sectional online questionnaire survey through Questionnaire Stars in order to collect relevant information about COVID-19 in children in Shenzhen. Results A total of 1,247 valid questionnaires were received, with an effective response rate of 78.72%. All of the diagnoses were confirmed by nucleic acid or antigen test for COVID-19. Among the subjects, the sex ratio of male to female was more inclined to male (1.35:1), and the age was 3-16 years, with an average of 10.13 ± 2.82 years old. The most common symptoms were cough (58.24%), stuffy nose (56.18%), headache (42.09%), fatigue (40.44%), and sore throat (31.63%). Approximately 6.43% of the children reported dysosmia, the mean time of the duration of dysosmia was 5.38 ± 2.92 days, and the mean score of the severity of the dysosmia as assessed by visual analogue scale (VAS) was 4.63 ± 2.29. Approximately 13.34% reported dysgeusia, the mean time of the duration of dysgeusia was 4.77 ± 3.98 days, and the mean score of the severity of the dysgeusia as assessed by VAS was 5.12 ± 2.29. Univariate and multivariate logistic regression analysis showed that the prevalence of taste and olfactory disorders increased with age, mainly in children with severe symptoms and older children. Conclusion In the post-epidemic era, due to weakening of the pathogenicity of the subvariant of Omicron, overall condition of children with COVID-19 was mild, incidence of olfactory and taste disorders was low, recovery was faster, and prognosis was better. In our study, cough, runny nose, and sore throat were the most common symptoms, and the prevalence of taste and olfactory disorders increased with age, mainly in older children with severe symptoms.
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Affiliation(s)
- Yong-chao Chen
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, Shenzhen, China
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, China Medical University, Shenzhen, China
| | - Xin Wang
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, Shenzhen, China
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, China Medical University, Shenzhen, China
| | - Yi-shu Teng
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, Shenzhen, China
| | - De-sheng Jia
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, Shenzhen, China
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, China Medical University, Shenzhen, China
| | - Lan Li
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, Shenzhen, China
| | - Hong-guang Pan
- Department of Otorhinolaryngology, Shenzhen Children’s Hospital, Shenzhen, China
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Chen S, Wang S. The immune mechanism of the nasal epithelium in COVID-19-related olfactory dysfunction. Front Immunol 2023; 14:1045009. [PMID: 37529051 PMCID: PMC10387544 DOI: 10.3389/fimmu.2023.1045009] [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] [Received: 09/15/2022] [Accepted: 06/29/2023] [Indexed: 08/03/2023] Open
Abstract
During the first waves of the coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, olfactory dysfunction (OD) was reported as a frequent clinical sign. The nasal epithelium is one of the front-line protections against viral infections, and the immune responses of the nasal mucosa may be associated with OD. Two mechanisms underlying OD occurrence in COVID-19 have been proposed: the infection of sustentacular cells and the inflammatory reaction of the nasal epithelium. The former triggers OD and the latter likely prolongs OD. These two alternative mechanisms may act in parallel; the infection of sustentacular cells is more important for OD occurrence because sustentacular cells are more likely to be the entry point of SARS-CoV-2 than olfactory neurons and more susceptible to early injury. Furthermore, sustentacular cells abundantly express transmembrane protease, serine 2 (TMPRSS2) and play a major role in the olfactory epithelium. OD occurrence in COVID-19 has revealed crucial roles of sustentacular cells. This review aims to elucidate how immune responses of the nasal epithelium contribute to COVID-19-related OD. Understanding the underlying immune mechanisms of the nasal epithelium in OD may aid in the development of improved medical treatments for COVID-19-related OD.
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Affiliation(s)
| | - Shufen Wang
- *Correspondence: Shunmei Chen, ; Shufen Wang,
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18
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Kumari V, Chauhan S, Vakani K, Antonova E, Bryant J. Camera-based visual feedback learning aid for recovering sense of smell and taste in COVID-19 survivors: a proof-of-concept study. Front Psychol 2023; 14:1213254. [PMID: 37502751 PMCID: PMC10371255 DOI: 10.3389/fpsyg.2023.1213254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 06/21/2023] [Indexed: 07/29/2023] Open
Abstract
Introduction A significant proportion of people report persistent COVID-19-related anosmia, hyposmia or parosmia, often accompanied with ageusia, hypogeusia or dysgeusia. Here, we present a proof-of-concept study that assessed the feasibility and acceptability of a new Camera-Based Visual Feedback Learning Aid (CVFLA) and explored its potential to restore or improve persistent COVID-19-related smell and/or taste impairment. Methods Fifteen adult participants with persistent smell and/or taste impairment were randomly allocated to 7-, 14-, or 21-days baseline of symptom monitoring before receiving the intervention in up to 10 sessions (length and frequency determined by participant's preference and progress) using a specialised CVFLA apparatus (patent no. 10186160). Smell and taste were assessed pre- and post-intervention subjectively, and also objectively using the ODOFIN Taste Strips and Sniffin Sticks. Participant feedback about their experience of receiving CVFLA was obtained via a semi-structured interview conducted by someone not involved in delivering the intervention. Results The intervention was extremely well received, with no dropouts related to the intervention. There was also a significant improvement in smell and taste from pre- to post-CVFLA intervention (mean number of sessions = 7.46, SD = 2.55; total duration = 389.96 min, SD = 150.93) both in subjective and objective measures. All participants, except one, reported experiencing some improvement from the 2nd or 3rd session. Discussion This new CVFLA intervention shows promise in improving COVID-19 related impairment in smell and taste with a very high level of acceptability. Further studies with larger samples are required to confirm its potential in restoring, improving or correcting smell and/or taste impairment in relevant clinical and non-clinical groups.
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Affiliation(s)
- Veena Kumari
- Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
- Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
| | - Satyam Chauhan
- Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
- Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
| | - Krupa Vakani
- Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
- Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
| | - Elena Antonova
- Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
- Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
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von Bartheld CS, Wang L. The prevalence of olfactory dysfunction with Omicron has decreased in Asia, similar to Western countries. Int J Infect Dis 2023; 131:193-195. [PMID: 37001800 DOI: 10.1016/j.ijid.2023.03.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 03/31/2023] Open
Affiliation(s)
- Christopher S von Bartheld
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, United States; Center of Biomedical Excellence in Cell Biology, University of Nevada, Reno School of Medicine, Reno, United States.
| | - Lingchen Wang
- School of Public Health, University of Nevada, Reno, United States
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Riccardi G, Niccolini GF, Bellizzi MG, Fiore M, Minni A, Barbato C. Post-COVID-19 Anosmia and Therapies: Stay Tuned for New Drugs to Sniff Out. Diseases 2023; 11:79. [PMID: 37366867 DOI: 10.3390/diseases11020079] [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: 05/08/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Background: Anosmia is defined as the complete absence of olfactory function, which can be caused by a variety of causes, with upper respiratory tract infections being among the most frequent causes. Anosmia due to SARS-CoV-2 infection has attracted attention given its main role in symptomatology and the social impact of the pandemic. Methods: We conducted systematic research in a clinicaltrials.gov database to evaluate all active clinical trials worldwide regarding drug therapies in adult patients for anosmia following SARS-CoV-2 infection with the intention of identifying the nearby prospects to treat Anosmia. We use the following search terms: "Anosmia" AND "COVID-19" OR "SARS-CoV-2" OR "2019 novel coronavirus". Results: We found 18 active clinical trials that met our criteria: one phase 1, one phase 1-2, five phases 2, two phases 2-3, three phases 3, and six phases 4 studies were identified. The drug therapies that appear more effective and promising are PEA-LUT and Cerebrolysin. The other interesting drugs are 13-cis-retinoic acid plus aerosolized Vitamin D, dexamethasone, and corticosteroid nasal irrigation. Conclusions: COVID-19 has allowed us to highlight how much anosmia is an important and debilitating symptom for patients and, above all, to direct research to find a therapy aimed at curing the symptom, whether it derives from SARS-CoV-2 infection or other infections of the upper airways. Some of these therapies are very promising and are almost at the end of experimentation. They also provide hope in this field, which not addressed until recently.
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Affiliation(s)
- Gabriele Riccardi
- Department of Sense Organs (DOS), Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | | | - Mario Giuseppe Bellizzi
- Department of Sense Organs (DOS), Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Unit of Translational Biomolecular Medicine, Department of Sense Organs (DOS), Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | - Antonio Minni
- Department of Sense Organs (DOS), Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Christian Barbato
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Unit of Translational Biomolecular Medicine, Department of Sense Organs (DOS), Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
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Vaira LA, De Riu G, Mayo-Yáñez M, Gengler IM, Lechien JR. Prevalence of chemosensitive disorders with Omicron infections and the possible impacts of vaccination. Int J Infect Dis 2023; 129:205-206. [PMID: 36805326 DOI: 10.1016/j.ijid.2023.02.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Affiliation(s)
- Luigi Angelo Vaira
- Young Otolaryngologists of International Federation of Otorhinolaryngological Societies, Paris, France; Maxillofacial Surgery Operative Unit, Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy; Biomedical Science Department, PhD School of Biomedical Science, University of Sassari, Sassari, Italy.
| | - Giacomo De Riu
- Maxillofacial Surgery Operative Unit, Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy; Biomedical Science Department, PhD School of Biomedical Science, University of Sassari, Sassari, Italy
| | - Miguel Mayo-Yáñez
- Young Otolaryngologists of International Federation of Otorhinolaryngological Societies, Paris, France; Otorhinolaryngology, Head and Neck Surgery Department, University Hospital Complex of A Coruña (CHUAC), A Coruña, Spain
| | - Isabelle M Gengler
- Young Otolaryngologists of International Federation of Otorhinolaryngological Societies, Paris, France; Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati Medical Center, Cincinnati, USA
| | - Jerome R Lechien
- Young Otolaryngologists of International Federation of Otorhinolaryngological Societies, Paris, France; Department of Laryngology and Bronchoesophagology, EpiCURA Hospital, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMons), Mons, Belgium; Department of Otolaryngology-Head & Neck Surgery, Foch Hospital, School of Medicine, UFR Simone Veil, Université Versailles Saint-Quentin-en-Yvelines (Paris Saclay University), Paris, France
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22
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Thirumugam G, Radhakrishnan Y, Ramamurthi S, Bhaskar JP, Krishnaswamy B. A systematic review on impact of SARS-CoV-2 infection. Microbiol Res 2023; 271:127364. [PMID: 36989761 PMCID: PMC10015779 DOI: 10.1016/j.micres.2023.127364] [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] [Received: 01/08/2023] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Innumerable pathogens including RNA viruses have catastrophic pandemic propensity, in turn, SARS-CoV-2 infection is highly contagious. Emergence of SARS-CoV-2 variants with high mutation rate additionally codifies infectious ability of virus and arisen clinical imputations to human health. Although, our knowledge of mechanism of virus infection and its impact on host system has been substantially demystified, uncertainties about the emergence of virus are still not fully understood. To date, there are no potentially curative drugs are identified against the viral infection. Even though, drugs are repurposed in the initial period of infection, many are significantly negative in clinical trials. Moreover, the infection is dependent on organ status, co-morbid conditions, variant of virus and geographic region. This review article aims to comprehensively describe the SARS-CoV-2 infection and the impacts in the host cellular system. This review also briefly provides an overview of genome, proteome and metabolome associated risk to infection and the advancement of therapeutics in SARS-CoV-2 infection management.
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Key Words
- sars-cov-2, severe acute respiratory syndrome coronavirus 2
- who, world health organization
- mers-cov-middle, east respiratory syndrome coronavirus
- ig, immunoglobulin
- rgd, arginine-glycine-aspartic
- nk-natural, killer cells
- s1 and s2, subunits of s protein
- nsp, non-structural proteins
- voi, varian of interest
- voc, variant of concern
- vum-variant, under monitoring
- ace2, angiotensin converting enzyme 2
- nsp-non-structural, proteins
- orf-open, reading frame
- sars-cov-2
- variants
- omics
- alternative medicines
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Affiliation(s)
- Gowripriya Thirumugam
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Yashwanth Radhakrishnan
- ITC - Life Sciences and Technology Centre, Peenya Industrial Area, 1(st) Phase, Bangalore 560058, Karnataka, India
| | - Suresh Ramamurthi
- ITC - Life Sciences and Technology Centre, Peenya Industrial Area, 1(st) Phase, Bangalore 560058, Karnataka, India
| | - James Prabhanand Bhaskar
- ITC - Life Sciences and Technology Centre, Peenya Industrial Area, 1(st) Phase, Bangalore 560058, Karnataka, India
| | - Balamurugan Krishnaswamy
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, Tamil Nadu, India,Corresponding author
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23
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Tai APL, Leung MK, Lau BWM, Ngai SPC, Lau WKW. Olfactory dysfunction: A plausible source of COVID-19-induced neuropsychiatric symptoms. Front Neurosci 2023; 17:1156914. [PMID: 37021130 PMCID: PMC10067586 DOI: 10.3389/fnins.2023.1156914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/06/2023] [Indexed: 04/07/2023] Open
Abstract
Olfactory dysfunction and neuropsychiatric symptoms are commonly reported by patients of coronavirus disease 2019 (COVID-19), a respiratory infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Evidence from recent research suggests linkages between altered or loss of smell and neuropsychiatric symptoms after infection with the coronavirus. Systemic inflammation and ischemic injury are believed to be the major cause of COVID-19-related CNS manifestation. Yet, some evidence suggest a neurotropic property of SARS-CoV-2. This mini-review article summarizes the neural correlates of olfaction and discusses the potential of trans-neuronal transmission of SARS-CoV-2 or its particles within the olfactory connections in the brain. The impact of the dysfunction in the olfactory network on the neuropsychiatric symptoms associated with COVID-19 will also be discussed.
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Affiliation(s)
- Alan Pui-Lun Tai
- Department of Special Education and Counselling, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Integrated Centre for Wellbeing, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bioanalytical Laboratory for Educational Sciences, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Mei-Kei Leung
- Department of Counselling and Psychology, Hong Kong Shue Yan University, Hong Kong, Hong Kong SAR, China
| | - Benson Wui-Man Lau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China
| | - Shirley Pui-Ching Ngai
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China
| | - Way Kwok-Wai Lau
- Department of Special Education and Counselling, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Integrated Centre for Wellbeing, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bioanalytical Laboratory for Educational Sciences, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
- *Correspondence: Way Kwok-Wai Lau,
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