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Karni N, Klein H, Asseo K, Benjamini Y, Israel S, Nimri M, Olstein K, Nir-Paz R, Hershko A, Muszkat M, Niv MY. Erratum: Corridengum to: Self-Rated Smell Ability Enables Highly Specific Predictors of COVID-19 Status: A Case-Control Study in Israel. Open Forum Infect Dis 2021; 8:ofab303. [PMID: 34950745 PMCID: PMC8691156 DOI: 10.1093/ofid/ofab303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
[This corrects the article DOI: 10.1093/ofid/ofaa589.].
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Affiliation(s)
- Noam Karni
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hadar Klein
- The Institute of Biochemistry, Food and Nutrition, The Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
| | - Kim Asseo
- The Institute of Biochemistry, Food and Nutrition, The Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
| | - Yuval Benjamini
- Department of Statistics, The Hebrew University, Mt. Scopus Campus, Jerusalem, Israel
| | - Sarah Israel
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Musa Nimri
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Keren Olstein
- Department of Clinical Microbiology and Infectious Diseases, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ran Nir-Paz
- Department of Clinical Microbiology and Infectious Diseases, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Alon Hershko
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Mordechai Muszkat
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Masha Y Niv
- The Institute of Biochemistry, Food and Nutrition, The Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
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Klein H, Asseo K, Karni N, Benjamini Y, Nir-Paz R, Muszkat M, Israel S, Niv MY. Onset, duration and unresolved symptoms, including smell and taste changes, in mild COVID-19 infection: a cohort study in Israeli patients. Clin Microbiol Infect 2021; 27:S1198-743X(21)00083-5. [PMID: 33607252 PMCID: PMC7884919 DOI: 10.1016/j.cmi.2021.02.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/26/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To characterize longitudinal symptoms of mild coronavirus disease 2019 (COVID-19) patients for a period of 6 months, to potentially aid in disease management. METHODS Phone interviews were conducted with 103 patients with mild COVID-19 in Israel over a 6-month period (April 2020 to October 2020). Patients were recruited via social media and word to mouth and were interviewed up to 4 times, depending on reports of their unresolved symptoms. Inclusion criteria required participants to be residents of Israel aged 18 years or older, with positive COVID-19 real-time PCR results and nonsevere symptoms. The onset, duration, severity and resolution of symptoms were analysed. RESULTS A total of 44% (45/103), 41% (42/103), 39% (40/103) and 38% (39/103) of patients experienced headache, fever, muscle ache and dry cough as the first symptom respectively. Smell and taste changes were experienced at 3.9 ± 5.4 and 4.6 ± 5.7 days (mean ± standard deviation (SD)) after disease onset respectively. Among prevalent symptoms, fever had the shortest duration (5.8 ± 8.6 days), and taste and smell changes were the longest-lasting symptoms (17.2 ± 17.6 and 18.9 ± 19.7 days; durations censored at 60 days). Longer recovery of the sense of smell correlated with the extent of smell change. At the 6-month follow-up, 46% (47/103) of the patients had at least one unresolved symptom, most commonly fatigue (22%, 23/103), smell and taste changes (15%, 15/103 and 8%, 8/103 respectively) and breathing difficulties (8%, 8/103). CONCLUSIONS Long-lasting effects of mild COVID-19 manifested in almost half of the participants reporting at least one unresolved symptom after 6 months.
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Affiliation(s)
- Hadar Klein
- Institute of Biochemistry, Food and Nutrition, Hebrew University, Rehovot, Israel
| | - Kim Asseo
- Institute of Biochemistry, Food and Nutrition, Hebrew University, Rehovot, Israel
| | - Noam Karni
- Department of Medicine, Hadassah University Hospital, Mt Scopus Campus, Jerusalem, Israel; Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yuval Benjamini
- Department of Statistics and Data Science, Hebrew University, Mt Scopus Campus, Jerusalem, Israel
| | - Ran Nir-Paz
- Department of Clinical Microbiology and Infectious Diseases, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Mordechai Muszkat
- Department of Medicine, Hadassah University Hospital, Mt Scopus Campus, Jerusalem, Israel; Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Sarah Israel
- Department of Medicine, Hadassah University Hospital, Mt Scopus Campus, Jerusalem, Israel; Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Masha Y Niv
- Institute of Biochemistry, Food and Nutrition, Hebrew University, Rehovot, Israel.
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Klein H, Karni N, Israel S, Gross M, Muszkat M, Niv MY. Reversible Taste Loss in a COVID-19 Patient With Preexisting Chronic Smell Impairment. J Investig Med High Impact Case Rep 2021; 9:2324709621990765. [PMID: 33535814 PMCID: PMC7868492 DOI: 10.1177/2324709621990765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/21/2020] [Accepted: 01/01/2021] [Indexed: 01/06/2023] Open
Abstract
Smell loss is important for coronavirus disease-2019 (COVID-19) screening and diagnosis. Particular attention should be paid to individuals with pre-COVID-19 chronic hyposmia or anosmia. We report a case of reversible taste impairment in a COVID-19 patient with chronically impaired sense of smell. This case emphasizes the importance of COVID-19-related taste assessment.
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Affiliation(s)
| | - Noam Karni
- Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel
| | - Sarah Israel
- Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel
| | - Menachem Gross
- Hadassah Hebrew-University Medical Center, Jerusalem, Israel
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Parma V, Ohla K, Veldhuizen MG, Niv MY, Kelly CE, Bakke AJ, Cooper KW, Bouysset C, Pirastu N, Dibattista M, Kaur R, Liuzza MT, Pepino MY, Schöpf V, Pereda-Loth V, Olsson SB, Gerkin RC, Rohlfs Domínguez P, Albayay J, Farruggia MC, Bhutani S, Fjaeldstad AW, Kumar R, Menini A, Bensafi M, Sandell M, Konstantinidis I, Di Pizio A, Genovese F, Öztürk L, Thomas-Danguin T, Frasnelli J, Boesveldt S, Saatci Ö, Saraiva LR, Lin C, Golebiowski J, Hwang LD, Ozdener MH, Guàrdia MD, Laudamiel C, Ritchie M, Havlícek J, Pierron D, Roura E, Navarro M, Nolden AA, Lim J, Whitcroft KL, Colquitt LR, Ferdenzi C, Brindha EV, Altundag A, Macchi A, Nunez-Parra A, Patel ZM, Fiorucci S, Philpott CM, Smith BC, Lundström JN, Mucignat C, Parker JK, van den Brink M, Schmuker M, Fischmeister FPS, Heinbockel T, Shields VDC, Faraji F, Santamaría E, Fredborg WEA, Morini G, Olofsson JK, Jalessi M, Karni N, D'Errico A, Alizadeh R, Pellegrino R, Meyer P, Huart C, Chen B, Soler GM, Alwashahi MK, Welge-Lüssen A, Freiherr J, de Groot JHB, Klein H, Okamoto M, Singh PB, Hsieh JW, Reed DR, Hummel T, Munger SD, Hayes JE. Corrigendum to: More Than Smell-COVID-19 Is Associated With Severe Impairment of Smell, Taste, and Chemesthesis. Chem Senses 2021; 46:6457126. [PMID: 34879393 PMCID: PMC8689756 DOI: 10.1093/chemse/bjab050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Valentina Parma
- Department of Psychology, Temple University, Philadelphia, PA, USA
| | - Kathrin Ohla
- Institute of Neuroscience and Medicine (INM-3), Research Center Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
| | - Maria G Veldhuizen
- Department of Anatomy, Faculty of Medicine, Mersin University, Çiftlikköy Campus, Yenişehir, Mersin, Turkey
| | - Masha Y Niv
- Institute of Biochemistry, Food Science and Nutrition, The Hebrew University of Jerusalem, Rehovot, Israel
| | | | - Alyssa J Bakke
- Department of Food Science, The Pennsylvania State University, Erickson Food Science Building, University Park, PA, USA
| | - Keiland W Cooper
- Center for the Neurobiology of Learning and Memory, University of California and Qureshey Research Laboratory, Irvine, CA, USA
| | - Cédric Bouysset
- Institut de Chimie de Nice, UMR CNRS 7272, Université Côte d'Azur, Avenue Valrose, Nice, France
| | - Nicola Pirastu
- Centre for Global Health Research, Usher Institute, The University of Edinburgh, Old Medical School, Teviot Place, Edinburgh, UK
| | - Michele Dibattista
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, Università degli Studi di Bari A. Moro, P.zza G. Cesare, Bari, Italy
| | - Rishemjit Kaur
- CSIR-Central Scientific Instruments Organisation, Chandigarh, India
| | - Marco Tullio Liuzza
- Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Viale Europa (Loc. Germaneto), Catanzaro, Italy
| | - Marta Y Pepino
- Department of Food Science and Human Nutrition and Division of Nutritional Sciences, University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Veronika Schöpf
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Währinger Gürtel, Vienna, Austria
| | - Veronica Pereda-Loth
- Laboratoire d'Anthropologie Moléculaire et Imagerie de Synthese, UMR 5288 CNRS, Universitéde Toulouse, Toulouse, France
| | - Shannon B Olsson
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, GKVK Campus, Bengaluru, India
| | - Richard C Gerkin
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Paloma Rohlfs Domínguez
- Department of Psychology and Anthropology, University of Extremadura, Avenida de la Universidad, s/n, Cáceres, Spain
| | - Javier Albayay
- Department of General Psychology, University of Padova, Via Venezia, Padova, Italy
| | - Michael C Farruggia
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Surabhi Bhutani
- School of Exercise and Nutritional Sciences, 5500 Campanile Drive, San Diego State University, San Diego, CA, USA
| | - Alexander W Fjaeldstad
- Flavour Clinic, Department of Otorhinolaryngology, Regional Hospital West Jutland, Central Denmark Region, Laegaardvej, Holstebro, Denmark
| | - Ritesh Kumar
- Biocomputation Group, Department of Computer Science, University of Hertfordshire, Hatfield, UK
| | - Anna Menini
- Neuroscience Area, International School for Advanced Studies, SISSA, Via Bonomea, Trieste, Italy
| | - Moustafa Bensafi
- Neuropop Team, Lyon Neuroscience Research Center, CNRS UMR5292-INSERM U1028-University Claude Bernard Lyon 1, 95 bd Pinel, Bron, France
| | - Mari Sandell
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland.,Functional Foods Forum, University of Turku, Turku, Finland
| | | | - Antonella Di Pizio
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str., Freising, Germany
| | | | - Lina Öztürk
- Department of Anatomy, Faculty of Medicine, Mersin University, Çiftlikköy Campus, Yenişehir, Mersin, Turkey
| | - Thierry Thomas-Danguin
- CSGA-Centre for Taste and Feeding Behavior, INRAE, CNRS, AgroSup Dijon, Université Bourgogne Franche-Comté, 17 rue Sully, Dijon, France
| | - Johannes Frasnelli
- Department of Anatomy, Université du Québec à Trois-Rivières, boul. des Forges, Trois-Rivières, QC, Canada
| | - Sanne Boesveldt
- Division of Human Nutrition and Health, Wageningen University, Stippeneng, WE Wageningen, the Netherlands
| | - Özlem Saatci
- Department of Otorhinolaryngology, Medical Science University, Emek, Sancaktepe-İstanbul, Turkey
| | - Luis R Saraiva
- Monell Chemical Senses Center, Philadelphia, PA, USA.,Sidra Medicine, Out Patient Clinic, Doha, Qatar
| | - Cailu Lin
- Monell Chemical Senses Center, Philadelphia, PA, USA
| | - Jérôme Golebiowski
- Institut de Chimie de Nice, UMR CNRS 7272, Université Côte d'Azur, Avenue Valrose, Nice, France
| | - Liang-Dar Hwang
- The University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD, Australia
| | | | - Maria Dolors Guàrdia
- IRTA-Food Technology Programme, IRTA, Finca Camps i Armet, Monells, Girona, Spain
| | | | - Marina Ritchie
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA
| | - Jan Havlícek
- Department of Zoology, Charles University, Viničná, Nové Město, Czechia
| | - Denis Pierron
- Équipe de Médecine Evolutive, UMR5288 CNRS/Université Toulouse III, faculté de chirurgie dentaire, 3 Chemin des Maraîchers, Toulouse, France
| | - Eugeni Roura
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, Australia
| | - Marta Navarro
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, Australia
| | - Alissa A Nolden
- Department of Food Science, University of Massachusetts, Holdsworth Way, Amherst, MA, USA
| | - Juyun Lim
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, USA
| | | | | | - Camille Ferdenzi
- Neuropop Team, Lyon Neuroscience Research Center, CNRS UMR5292-INSERM U1028-University Claude Bernard Lyon 1, 95 bd Pinel, Bron, France
| | - Evelyn V Brindha
- Department of Electrical and Electronics Engineering, Karunya Institute of Technology and Sciences, Karunya Nagar, Coimbatore, Tamilnadu, India
| | - Aytug Altundag
- Otorhinolaryngology Department, Biruni University, Protokol Yolu, Topkapı, Zeytinburnu, Istanbul, Turkey
| | - Alberto Macchi
- Italian Academy of Rhinology Asst Settelaghi-University of Insubriae, via Guicciardini, Varese, Italy
| | - Alexia Nunez-Parra
- Department of Biology, Universidad de Chile, Las Palmeras, Santiago, Chile
| | - Zara M Patel
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Sébastien Fiorucci
- Institut de Chimie de Nice, UMR CNRS 7272, Université Côte d'Azur, Avenue Valrose, Nice, France
| | - Carl M Philpott
- The Norfolk Smell and Taste Clinic, University of East Anglia, Norwich Research Park, Norwich, UK
| | - Barry C Smith
- Centre for the Study of the Senses, Institute of Philosophy, School of Advanced Study, University of London, London, UK
| | - Johan N Lundström
- Monell Chemical Senses Center, Philadelphia, PA, USA.,Department of Clinical Neuroscience, Karolinska Institutet, Nobels väg, Stockholm, Sweden
| | - Carla Mucignat
- Department of Molecular Medicine, University of Padova, via Marzolo, Padova, Italy
| | - Jane K Parker
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, UK
| | - Mirjam van den Brink
- Laboratory of Behavioural Gastronomy, Maastricht University Campus Venlo, Nassaustraat, BV Venlo, the Netherlands
| | - Michael Schmuker
- Biocomputation Group, Department of Computer Science, University of Hertfordshire, Hatfield, UK
| | | | - Thomas Heinbockel
- Department of Anatomy, College of Medicine, Howard University, N.W., Washington, DC, USA
| | - Vonnie D C Shields
- Biological Sciences Department, Fisher College of Science and Mathematics, Towson University, Towson, MD USA
| | - Farhoud Faraji
- Division of Otolaryngology, Head & Neck Surgery, University of California San Diego Health, MC La Jolla, CA, USA
| | - Enrique Santamaría
- Clinical Neuroproteomics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IDISNA), Proteored-ISCIII, Pamplona, Spain
| | - William E A Fredborg
- Department of Psychology, Stockholm University, Frescativägen, Stockholm, Sweden
| | - Gabriella Morini
- University of Gastronomic Sciences, Piazza Vittorio Emanuele II 9, Bra, Pollenzo, CN, Italy
| | - Jonas K Olofsson
- Department of Psychology, Stockholm University, Frescativägen, Stockholm, Sweden
| | - Maryam Jalessi
- Skull Base Research Center, The Five Senses Institute, Iran University of Medical Sciences, Rasoul Akram Hospital, Sattarkhan Ave., Tehran, Iran
| | - Noam Karni
- Internal Medicine Department, Hadassah Medical Center, Kiryat Hadassah, Jerusalem, Israel
| | - Anna D'Errico
- Department of Molecular and Cellular Neurobiology, Goethe Universität Frankfurt, Goethe Universität Frankfurt, Max von Laue Strasse, Frankfurt am Main, Germany
| | - Rafieh Alizadeh
- ENT and Head and Neck Research Center and Department, Hazrat Rasoul Hospital, The Five Senses Institute, Iran University of Medical Sciences, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, Iran
| | - Robert Pellegrino
- Food Science Department, University of Tennessee, Knoxville, TN, USA
| | - Pablo Meyer
- Health Care and Life Sciences, IBM T. J. Watson Research Center, Yorktown Heights, NY, USA
| | - Caroline Huart
- Department of Otorhinolaryngology, Cliniques Universitaires Saint-Luc, Avenue Hippocrate, Brussels, Belgium
| | - Ben Chen
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Liwan District, Guangzhou City, China
| | - Graciela M Soler
- Department of Otorhinolaringology, Buenos Aires University and GEOG (Grupo de Estudio de Olfato y Gusto), Calle Paraguay, Piso 3. CABA (Ciudad Autónoma de Buenos Aires), Argentina
| | - Mohammed K Alwashahi
- Surgery Department, ENT Division, Sultan Qaboos University Hospital, Al Khoud, Muscat, Oman
| | - Antje Welge-Lüssen
- Department of Otorhinolaryngology, University Hospital Basel, Petersgraben, Basel, Switzerland
| | - Jessica Freiherr
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage, Erlangen, Germany
| | - Jasper H B de Groot
- Department of Psychology, Utrecht University, Heidelberglaan 1, CS Utrecht, The Netherlands
| | - Hadar Klein
- Institute of Biochemistry, Food Science and Nutrition, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Masako Okamoto
- Department of Applied Biological Chemistry, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, Japan
| | - Preet Bano Singh
- Department of Oral Surgery and Oral Medicine, Faculty of Dentistry, University of Oslo, Blindern, Oslo, Norway
| | - Julien W Hsieh
- Rhinology-Olfactology Unit, ENT Department, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil, Geneva, Switzerland
| | | | | | - Thomas Hummel
- Department of Otorhinolaryngology, TU Dresden, Helmholtzstr., Dresden, Germany
| | - Steven D Munger
- Center for Smell and Taste, University of Florida, , Rm LG-101D, Gainesville, FL, USA.,Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
| | - John E Hayes
- Department of Food Science, The Pennsylvania State University, Erickson Food Science Building, University Park, PA, USA
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5
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Karni N, Klein H, Asseo K, Benjamini Y, Israel S, Nammary M, Olshtain-Pops K, Nir-Paz R, Hershko A, Muszkat M, Niv MY. Self-Rated Smell Ability Enables Highly Specific Predictors of COVID-19 Status: A Case-Control Study in Israel. Open Forum Infect Dis 2020; 8:ofaa589. [PMID: 33604398 PMCID: PMC7798480 DOI: 10.1093/ofid/ofaa589] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/02/2020] [Indexed: 12/21/2022] Open
Abstract
Background Clinical diagnosis of coronavirus disease 2019 (COVID-19) is essential to the detection and prevention of COVID-19. Sudden onset of loss of taste and smell is a hallmark of COVID-19, and optimal ways for including these symptoms in the screening of patients and distinguishing COVID-19 from other acute viral diseases should be established. Methods We performed a case–control study of patients who were polymerase chain reaction–tested for COVID-19 (112 positive and 112 negative participants), recruited during the first wave (March 2020–May 2020) of the COVID-19 pandemic in Israel. Patients reported their symptoms and medical history by phone and rated their olfactory and gustatory abilities before and during their illness on a 1–10 scale. Results Changes in smell and taste occurred in 68% (95% CI, 60%–76%) and 72% (95% CI, 64%–80%) of positive patients, with odds ratios of 24 (range, 11–53) and 12 (range, 6–23), respectively. The ability to smell was decreased by 0.5 ± 1.5 in negatives and by 4.5 ± 3.6 in positives. A penalized logistic regression classifier based on 5 symptoms had 66% sensitivity, 97% specificity, and an area under the receiver operating characteristics curve (AUC) of 0.83 on a holdout set. A classifier based on degree of smell change was almost as good, with 66% sensitivity, 97% specificity, and 0.81 AUC. The predictive positive value of this classifier was 0.68, and the negative predictive value was 0.97. Conclusions Self-reported quantitative olfactory changes, either alone or combined with other symptoms, provide a specific tool for clinical diagnosis of COVID-19. A simple calculator for prioritizing COVID-19 laboratory testing is presented here.
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Affiliation(s)
- Noam Karni
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hadar Klein
- The Institute of Biochemistry, Food and Nutrition, The Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
| | - Kim Asseo
- The Institute of Biochemistry, Food and Nutrition, The Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
| | - Yuval Benjamini
- Department of Statistics, The Hebrew University, Mt. Scopus Campus, Jerusalem, Israel
| | - Sarah Israel
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Musa Nammary
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Keren Olshtain-Pops
- Department of Clinical Microbiology and Infectious Diseases, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ran Nir-Paz
- Department of Clinical Microbiology and Infectious Diseases, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Alon Hershko
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Mordechai Muszkat
- Department of Medicine, Hadassah University Hospital, Mt. Scopus Campus, Jerusalem, Israel.,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Masha Y Niv
- The Institute of Biochemistry, Food and Nutrition, The Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
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6
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Parma V, Ohla K, Veldhuizen MG, Niv MY, Kelly CE, Bakke AJ, Cooper KW, Bouysset C, Pirastu N, Dibattista M, Kaur R, Liuzza MT, Pepino MY, Schöpf V, Pereda-Loth V, Olsson SB, Gerkin RC, Rohlfs Domínguez P, Albayay J, Farruggia MC, Bhutani S, Fjaeldstad AW, Kumar R, Menini A, Bensafi M, Sandell M, Konstantinidis I, Di Pizio A, Genovese F, Öztürk L, Thomas-Danguin T, Frasnelli J, Boesveldt S, Saatci Ö, Saraiva LR, Lin C, Golebiowski J, Hwang LD, Ozdener MH, Guàrdia MD, Laudamiel C, Ritchie M, Havlícek J, Pierron D, Roura E, Navarro M, Nolden AA, Lim J, Whitcroft KL, Colquitt LR, Ferdenzi C, Brindha EV, Altundag A, Macchi A, Nunez-Parra A, Patel ZM, Fiorucci S, Philpott CM, Smith BC, Lundström JN, Mucignat C, Parker JK, van den Brink M, Schmuker M, Fischmeister FPS, Heinbockel T, Shields VDC, Faraji F, Santamaría E, Fredborg WEA, Morini G, Olofsson JK, Jalessi M, Karni N, D'Errico A, Alizadeh R, Pellegrino R, Meyer P, Huart C, Chen B, Soler GM, Alwashahi MK, Welge-Lüssen A, Freiherr J, de Groot JHB, Klein H, Okamoto M, Singh PB, Hsieh JW, Reed DR, Hummel T, Munger SD, Hayes JE. More Than Smell-COVID-19 Is Associated With Severe Impairment of Smell, Taste, and Chemesthesis. Chem Senses 2020; 45:609-622. [PMID: 32564071 PMCID: PMC7337664 DOI: 10.1093/chemse/bjaa041] [Citation(s) in RCA: 300] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Recent anecdotal and scientific reports have provided evidence of a link between COVID-19 and chemosensory impairments such as anosmia. However, these reports have downplayed or failed to distinguish potential effects on taste, ignored chemesthesis, and generally lacked quantitative measurements. Here, we report the development, implementation and initial results of a multi-lingual, international questionnaire to assess self-reported quantity and quality of perception in three distinct chemosensory modalities (smell, taste, and chemesthesis) before and during COVID-19. In the first 11 days after questionnaire launch, 4039 participants (2913 women, 1118 men, 8 other, ages 19-79) reported a COVID-19 diagnosis either via laboratory tests or clinical assessment. Importantly, smell, taste and chemesthetic function were each significantly reduced compared to their status before the disease. Difference scores (maximum possible change ±100) revealed a mean reduction of smell (-79.7 ± 28.7, mean ± SD), taste (-69.0 ± 32.6), and chemesthetic (-37.3 ± 36.2) function during COVID-19. Qualitative changes in olfactory ability (parosmia and phantosmia) were relatively rare and correlated with smell loss. Importantly, perceived nasal obstruction did not account for smell loss. Furthermore, chemosensory impairments were similar between participants in the laboratory test and clinical assessment groups. These results show that COVID-19-associated chemosensory impairment is not limited to smell, but also affects taste and chemesthesis. The multimodal impact of COVID-19 and lack of perceived nasal obstruction suggest that SARS-CoV-2 infection may disrupt sensory-neural mechanisms.
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Affiliation(s)
- Valentina Parma
- Department of Psychology, Temple University, Philadelphia, PA, USA
| | - Kathrin Ohla
- Institute of Neuroscience and Medicine (INM-3), Research Center Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
| | - Maria G Veldhuizen
- Department of Anatomy, Faculty of Medicine, Mersin University, Çiftlikköy Campus, Yenişehir, Mersin, Turkey
| | - Masha Y Niv
- Institute of Biochemistry, Food Science and Nutrition, The Hebrew University of Jerusalem, Rehovot, Israel
| | | | - Alyssa J Bakke
- Department of Food Science, The Pennsylvania State University, Erickson Food Science Building, University Park, PA, USA
| | - Keiland W Cooper
- Center for the Neurobiology of Learning and Memory, University of California and Qureshey Research Laboratory, Irvine, CA, USA
| | - Cédric Bouysset
- Institut de Chimie de Nice, UMR CNRS 7272, Université Côte d'Azur, Avenue Valrose, Nice, France
| | - Nicola Pirastu
- Centre for Global Health Research, Usher Institute, The University of Edinburgh, Old Medical School, Teviot Place, Edinburgh, UK
| | - Michele Dibattista
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, Università degli Studi di Bari A. Moro, P.zza G. Cesare, Bari, Italy
| | - Rishemjit Kaur
- CSIR-Central Scientific Instruments Organisation, Chandigarh, India
| | - Marco Tullio Liuzza
- Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Viale Europa (Loc. Germaneto), Catanzaro, Italy
| | - Marta Y Pepino
- Department of Food Science and Human Nutrition and Division of Nutritional Sciences, University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Veronika Schöpf
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Währinger Gürtel, Vienna, Austria
| | - Veronica Pereda-Loth
- Laboratoire d'Anthropologie Moléculaire et Imagerie de Synthese, UMR 5288 CNRS, Universitéde Toulouse, Toulouse, France
| | - Shannon B Olsson
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, GKVK Campus, Bengaluru, India
| | - Richard C Gerkin
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Paloma Rohlfs Domínguez
- Department of Psychology and Anthropology, University of Extremadura, Avenida de la Universidad, s/n, Cáceres, Spain
| | - Javier Albayay
- Department of General Psychology, University of Padova, Via Venezia, Padova, Italy
| | - Michael C Farruggia
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Surabhi Bhutani
- School of Exercise and Nutritional Sciences, 5500 Campanile Drive, San Diego State University, San Diego, CA, USA
| | - Alexander W Fjaeldstad
- Flavour Clinic, Department of Otorhinolaryngology, Regional Hospital West Jutland, Central Denmark Region, Laegaardvej, Holstebro, Denmark
| | - Ritesh Kumar
- Biocomputation Group, Department of Computer Science, University of Hertfordshire, Hatfield, UK
| | - Anna Menini
- Neuroscience Area, International School for Advanced Studies, SISSA, Via Bonomea, Trieste, Italy
| | - Moustafa Bensafi
- Neuropop Team, Lyon Neuroscience Research Center, CNRS UMR5292-INSERM U1028-University Claude Bernard Lyon 1, 95 bd Pinel, Bron, France
| | - Mari Sandell
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland.,Functional Foods Forum, University of Turku, Turku, Finland
| | | | - Antonella Di Pizio
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str., Freising, Germany
| | | | - Lina Öztürk
- Department of Anatomy, Faculty of Medicine, Mersin University, Çiftlikköy Campus, Yenişehir, Mersin, Turkey
| | - Thierry Thomas-Danguin
- CSGA-Centre for Taste and Feeding Behavior, INRAE, CNRS, AgroSup Dijon, Université Bourgogne Franche-Comté, 17 rue Sully, Dijon, France
| | - Johannes Frasnelli
- Department of Anatomy, Université du Québec à Trois-Rivières, boul. des Forges, Trois-Rivières, QC, Canada
| | - Sanne Boesveldt
- Division of Human Nutrition and Health, Wageningen University, Stippeneng, WE Wageningen, the Netherlands
| | - Özlem Saatci
- Department of Otorhinolaryngology, Medical Science University, Emek, Sancaktepe-İstanbul, Turkey
| | - Luis R Saraiva
- Monell Chemical Senses Center, Philadelphia, PA, USA.,Sidra Medicine, Out Patient Clinic, Doha, Qatar
| | - Cailu Lin
- Monell Chemical Senses Center, Philadelphia, PA, USA
| | - Jérôme Golebiowski
- Institut de Chimie de Nice, UMR CNRS 7272, Université Côte d'Azur, Avenue Valrose, Nice, France
| | - Liang-Dar Hwang
- The University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD, Australia
| | | | - Maria Dolors Guàrdia
- IRTA-Food Technology Programme, IRTA, Finca Camps i Armet, Monells, Girona, Spain
| | | | - Marina Ritchie
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA
| | - Jan Havlícek
- Department of Zoology, Charles University, Viničná, Nové Město, Czechia
| | - Denis Pierron
- Équipe de Médecine Evolutive, UMR5288 CNRS/Université Toulouse III, faculté de chirurgie dentaire, 3 Chemin des Maraîchers, Toulouse, France
| | - Eugeni Roura
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, Australia
| | - Marta Navarro
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, Australia
| | - Alissa A Nolden
- Department of Food Science, University of Massachusetts, Holdsworth Way, Amherst, MA, USA
| | - Juyun Lim
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, USA
| | | | | | - Camille Ferdenzi
- Neuropop Team, Lyon Neuroscience Research Center, CNRS UMR5292-INSERM U1028-University Claude Bernard Lyon 1, 95 bd Pinel, Bron, France
| | - Evelyn V Brindha
- Department of Electrical and Electronics Engineering, Karunya Institute of Technology and Sciences, Karunya Nagar, Coimbatore, Tamilnadu, India
| | - Aytug Altundag
- Otorhinolaryngology Department, Biruni University, Protokol Yolu, Topkapı, Zeytinburnu, Istanbul, Turkey
| | - Alberto Macchi
- Italian Academy of Rhinology Asst Settelaghi-University of Insubriae, via Guicciardini, Varese, Italy
| | - Alexia Nunez-Parra
- Department of Biology, Universidad de Chile, Las Palmeras, Santiago, Chile
| | - Zara M Patel
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Sébastien Fiorucci
- Institut de Chimie de Nice, UMR CNRS 7272, Université Côte d'Azur, Avenue Valrose, Nice, France
| | - Carl M Philpott
- The Norfolk Smell and Taste Clinic, University of East Anglia, Norwich Research Park, Norwich, UK
| | - Barry C Smith
- Centre for the Study of the Senses, Institute of Philosophy, School of Advanced Study, University of London, London, UK
| | - Johan N Lundström
- Monell Chemical Senses Center, Philadelphia, PA, USA.,Department of Clinical Neuroscience, Karolinska Institutet, Nobels väg, Stockholm, Sweden
| | - Carla Mucignat
- Department of Molecular Medicine, University of Padova, via Marzolo, Padova, Italy
| | - Jane K Parker
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, UK
| | - Mirjam van den Brink
- Laboratory of Behavioural Gastronomy, Maastricht University Campus Venlo, Nassaustraat, BV Venlo, the Netherlands
| | - Michael Schmuker
- Biocomputation Group, Department of Computer Science, University of Hertfordshire, Hatfield, UK
| | | | - Thomas Heinbockel
- Department of Anatomy, College of Medicine, Howard University, N.W., Washington, DC, USA
| | - Vonnie D C Shields
- Biological Sciences Department, Fisher College of Science and Mathematics, Towson University, Towson, MD USA
| | - Farhoud Faraji
- Division of Otolaryngology, Head & Neck Surgery, University of California San Diego Health, MC La Jolla, CA, USA
| | - Enrique Santamaría
- Clinical Neuroproteomics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IDISNA), Proteored-ISCIII, Pamplona, Spain
| | - William E A Fredborg
- Department of Psychology, Stockholm University, Frescativägen, Stockholm, Sweden
| | - Gabriella Morini
- University of Gastronomic Sciences, Piazza Vittorio Emanuele II 9, Bra, Pollenzo, CN, Italy
| | - Jonas K Olofsson
- Department of Psychology, Stockholm University, Frescativägen, Stockholm, Sweden
| | - Maryam Jalessi
- Skull Base Research Center, The Five Senses Institute, Iran University of Medical Sciences, Rasoul Akram Hospital, Sattarkhan Ave., Tehran, Iran
| | - Noam Karni
- Internal Medicine Department, Hadassah Medical Center, Kiryat Hadassah, Jerusalem, Israel
| | - Anna D'Errico
- Department of Molecular and Cellular Neurobiology, Goethe Universität Frankfurt, Goethe Universität Frankfurt, Max von Laue Strasse, Frankfurt am Main, Germany
| | - Rafieh Alizadeh
- ENT and Head and Neck Research Center and Department, Hazrat Rasoul Hospital, The Five Senses Institute, Iran University of Medical Sciences, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, Iran
| | - Robert Pellegrino
- Food Science Department, University of Tennessee, Knoxville, TN, USA
| | - Pablo Meyer
- Health Care and Life Sciences, IBM T. J. Watson Research Center, Yorktown Heights, NY, USA
| | - Caroline Huart
- Department of Otorhinolaryngology, Cliniques Universitaires Saint-Luc, Avenue Hippocrate, Brussels, Belgium
| | - Ben Chen
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Liwan District, Guangzhou City, China
| | - Graciela M Soler
- Department of Otorhinolaringology, Buenos Aires University and GEOG (Grupo de Estudio de Olfato y Gusto), Calle Paraguay, Piso 3. CABA (Ciudad Autónoma de Buenos Aires), Argentina
| | - Mohammed K Alwashahi
- Surgery Department, ENT Division, Sultan Qaboos University Hospital, Al Khoud, Muscat, Oman
| | - Antje Welge-Lüssen
- Department of Otorhinolaryngology, University Hospital Basel, Petersgraben, Basel, Switzerland
| | - Jessica Freiherr
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage, Erlangen, Germany
| | - Jasper H B de Groot
- Department of Psychology, Utrecht University, Heidelberglaan 1, CS Utrecht, The Netherlands
| | - Hadar Klein
- Institute of Biochemistry, Food Science and Nutrition, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Masako Okamoto
- Department of Applied Biological Chemistry, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, Japan
| | - Preet Bano Singh
- Department of Oral Surgery and Oral Medicine, Faculty of Dentistry, University of Oslo, Blindern, Oslo, Norway
| | - Julien W Hsieh
- Rhinology-Olfactology Unit, ENT Department, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil, Geneva, Switzerland
| | | | | | - Thomas Hummel
- Department of Otorhinolaryngology, TU Dresden, Helmholtzstr., Dresden, Germany
| | - Steven D Munger
- Center for Smell and Taste, University of Florida, , Rm LG-101D, Gainesville, FL, USA.,Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
| | - John E Hayes
- Department of Food Science, The Pennsylvania State University, Erickson Food Science Building, University Park, PA, USA
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Gerkin RC, Ohla K, Veldhuizen MG, Joseph PV, Kelly CE, Bakke AJ, Steele KE, Farruggia MC, Pellegrino R, Pepino MY, Bouysset C, Soler GM, Pereda-Loth V, Dibattista M, Cooper KW, Croijmans I, Di Pizio A, Ozdener MH, Fjaeldstad AW, Lin C, Sandell MA, Singh PB, Brindha VE, Olsson SB, Saraiva LR, Ahuja G, Alwashahi MK, Bhutani S, D'Errico A, Fornazieri MA, Golebiowski J, Hwang LD, Öztürk L, Roura E, Spinelli S, Whitcroft KL, Faraji F, Fischmeister FPS, Heinbockel T, Hsieh JW, Huart C, Konstantinidis I, Menini A, Morini G, Olofsson JK, Philpott CM, Pierron D, Shields VDC, Voznessenskaya VV, Albayay J, Altundag A, Bensafi M, Bock MA, Calcinoni O, Fredborg W, Laudamiel C, Lim J, Lundström JN, Macchi A, Meyer P, Moein ST, Santamaría E, Sengupta D, Domínguez PP, Yanık H, Boesveldt S, de Groot JHB, Dinnella C, Freiherr J, Laktionova T, Mariño S, Monteleone E, Nunez-Parra A, Abdulrahman O, Ritchie M, Thomas-Danguin T, Walsh-Messinger J, Al Abri R, Alizadeh R, Bignon E, Cantone E, Cecchini MP, Chen J, Guàrdia MD, Hoover KC, Karni N, Navarro M, Nolden AA, Mazal PP, Rowan NR, Sarabi-Jamab A, Archer NS, Chen B, Di Valerio EA, Feeney EL, Frasnelli J, Hannum M, Hopkins C, Klein H, Mignot C, Mucignat C, Ning Y, Ozturk EE, Peng M, Saatci O, Sell EA, Yan CH, Alfaro R, Cecchetto C, Coureaud G, Herriman RD, Justice JM, Kaushik PK, Koyama S, Overdevest JB, Pirastu N, Ramirez VA, Roberts SC, Smith BC, Cao H, Wang H, Balungwe P, Baguma M, Hummel T, Hayes JE, Reed DR, Niv MY, Munger SD, Parma V. The best COVID-19 predictor is recent smell loss: a cross-sectional study. medRxiv 2020. [PMID: 32743605 DOI: 10.1101/2020.07.22.20157263] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND COVID-19 has heterogeneous manifestations, though one of the most common symptoms is a sudden loss of smell (anosmia or hyposmia). We investigated whether olfactory loss is a reliable predictor of COVID-19. METHODS This preregistered, cross-sectional study used a crowdsourced questionnaire in 23 languages to assess symptoms in individuals self-reporting recent respiratory illness. We quantified changes in chemosensory abilities during the course of the respiratory illness using 0-100 visual analog scales (VAS) for participants reporting a positive (C19+; n=4148) or negative (C19-; n=546) COVID-19 laboratory test outcome. Logistic regression models identified singular and cumulative predictors of COVID-19 status and post-COVID-19 olfactory recovery. RESULTS Both C19+ and C19- groups exhibited smell loss, but it was significantly larger in C19+ participants (mean±SD, C19+: -82.5±27.2 points; C19-: -59.8±37.7). Smell loss during illness was the best predictor of COVID-19 in both single and cumulative feature models (ROC AUC=0.72), with additional features providing no significant model improvement. VAS ratings of smell loss were more predictive than binary chemosensory yes/no-questions or other cardinal symptoms, such as fever or cough. Olfactory recovery within 40 days was reported for ~50% of participants and was best predicted by time since illness onset. CONCLUSIONS As smell loss is the best predictor of COVID-19, we developed the ODoR-19 tool, a 0-10 scale to screen for recent olfactory loss. Numeric ratings ≤2 indicate high odds of symptomatic COVID-19 (10<OR<4), especially when viral lab tests are impractical or unavailable.
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Affiliation(s)
- R Mester
- Ness-Ziona Mental Health Center, Sackler Faculty of Medicine, Tel Aviv, Israel
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Ravid R, Jedwab G, Persitz E, David MP, Karni N, Gil S, Cordova T, Harell A, Ayalon D. Gonadotrophin release in ovariectomized patients. I. Suppression by clomiphene or low doses of ethinyl oestradiol. Clin Endocrinol (Oxf) 1977; 6:333-8. [PMID: 872443 DOI: 10.1111/j.1365-2265.1977.tb02019.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Administration of clomiphene citrate (150 mg/day) for 5 days to twenty-four ovariectomized patients and seven normal female patients evoked a significant release of FSH and LH in the normal control group and suppressed the gonadotrophin secretion in the castrated patients. A similar suppressive effect on gonadotrophin secretion was noted in eight ovariectomized patients treated for 10 days with low doses (50 microgram/day) of ethinyl oestradiol. It is suggested that in the ovariectomized hypoestrogenic patients, clomiphene acted as an oestrogen, suppressing by a negative feedback action gonadotrophin release in a way similar to ethinyl oestradiol. In the normal control group with an adequate steroid environment, clomiphene acted (probably at the hypothalamic level) as an oestrogen antagonist and stimulated gonadotrophin secretion. In view of our findings, it seems as if the ability of anovulatory patients to respond to clomiphene treatment by increased gonadotrophin secretion depends upon the absolute concentration of the compound in the different organs and by the quantitative relation of clomiphene to the endogenous oestrogens.
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