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Cournoyer M, Gauthier AC, Maldera A, Maso FD, Mathieu ME. Effect of physical activity on olfaction acuity: A systematic review. Physiol Behav 2024; 284:114648. [PMID: 39059598 DOI: 10.1016/j.physbeh.2024.114648] [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: 04/26/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 07/28/2024]
Abstract
Olfaction acuity, which includes detection thresholds, discrimination and identification, appears to decline with age, obesity, and various neurological disorders. Knowing that smell influences energy intake, there is a growing interest in protecting this sense. Physical activity could be a key intervention to counteract the loss of olfaction. This systematic review aims to explore the literature on the effect of physical activity on olfaction acuity. The search strategy consisted of using index terms and keywords in MEDLINE, EMBASE, EBM Reviews - Cochrane Central Register of Controlled Trials, CINAHL, SPORTDiscus, and Web of Science search engine. Data from 17 trials involving 10,861 participants showed that physical activity improved olfaction thresholds, discrimination, identification and perceived intensity. Regular practice of physical activity seemed to have better effects on olfaction components than acute exercise. Although this review has clarified the evidence on the effects of physical activity on olfaction, better methodological consistency is needed.
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Affiliation(s)
- Mathieu Cournoyer
- École de Kinésiologie et des Sciences de l'Activité Physique, Faculté de Médecine, Université de Montréal, Montreal, Canada
| | - Alexandre-Charles Gauthier
- École de Kinésiologie et des Sciences de l'Activité Physique, Faculté de Médecine, Université de Montréal, Montreal, Canada
| | - Alice Maldera
- École de Kinésiologie et des Sciences de l'Activité Physique, Faculté de Médecine, Université de Montréal, Montreal, Canada
| | - Fabien Dal Maso
- École de Kinésiologie et des Sciences de l'Activité Physique, Faculté de Médecine, Université de Montréal, Montreal, Canada; Centre Interdisciplinaire de Recherche sur le Cerveau et l'Apprentissage, Montreal, QC, Canada
| | - Marie-Eve Mathieu
- École de Kinésiologie et des Sciences de l'Activité Physique, Faculté de Médecine, Université de Montréal, Montreal, Canada; Centre de Recherche Azrieli du CHU Sainte-Justine, Montreal, Canada.
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Nettore IC, Palatucci G, Ungaro P, Scidà G, Corrado A, De Vito R, Vitale M, Rivieccio AM, Annuzzi G, Bozzetto L, Colao A, Macchia PE. Flavor and taste recognition impairments in people with type 1 diabetes. Nutr Diabetes 2024; 14:57. [PMID: 39095342 PMCID: PMC11297142 DOI: 10.1038/s41387-024-00322-1] [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: 01/08/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND/OBJECTIVES Adherence to dietary recommendations is a critical component in the management of type 1 diabetes (T1D). Taste and flavor significantly influence food choices. The aim of this study was to investigate taste sensitivity and flavor recognition ability in adults with T1D compared to healthy individuals. SUBJECTS/METHODS Seventy-two people with T1D and 72 matched healthy controls participated in the study. Participants underwent the gustometry test for sweet, sour, salty, and bitter tastes and the flavor test, which consisted of oral administration of aqueous aromatic solutions identifying 21 different compounds. RESULTS Participants with T1D had significantly lower flavor scores and gustometry scores than controls (p < 0.0001 and p = 0.0063, respectively). T1D individuals showed a lower perception of sour, bitter and salty tastes than controls, while the perception of sweet taste was similar. The sex differences and age-related decline in flavor perception observed in controls were not present in the participants with T1D. Neither BMI nor disease-related parameters such as fasting blood glucose on the day of the study, glycosylated hemoglobin, age at onset of diabetes, duration of diabetes, or type of insulin treatment (insulin pump or multiple daily injections) correlated with flavor and taste perception in the T1D participants. CONCLUSIONS Flavor and taste perception are impaired in adults with T1D, potentially affecting dietary adherence and food choices. This highlights the need for further research into the mechanisms underlying sensory changes in T1D and emphasizes the importance of targeted dietary interventions to improve health outcomes and quality of life in this population.
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Affiliation(s)
- Immacolata Cristina Nettore
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Giuseppe Palatucci
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Paola Ungaro
- Istituto per l'Endocrinologia ed Oncologia Sperimentale del Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy
- UNESCO Chair on Health Education and Sustainable Development, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Giuseppe Scidà
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Alessandra Corrado
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Rosa De Vito
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Marilena Vitale
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Anna Maria Rivieccio
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Giovanni Annuzzi
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Lutgarda Bozzetto
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy
- UNESCO Chair on Health Education and Sustainable Development, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Paolo Emidio Macchia
- Dipartimento di Medicina Clinica e Chirurgia, Scuola di Medicina, Università degli Studi di Napoli Federico II, Naples, Italy.
- UNESCO Chair on Health Education and Sustainable Development, Università degli Studi di Napoli Federico II, Naples, Italy.
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Chamberlin KW, Yuan Y, Li C, Luo Z, Reeves M, Kucharska‐Newton A, Pinto JM, Ma J, Simonsick EM, Chen H. Olfactory Impairment and the Risk of Major Adverse Cardiovascular Outcomes in Older Adults. J Am Heart Assoc 2024; 13:e033320. [PMID: 38847146 PMCID: PMC11255730 DOI: 10.1161/jaha.123.033320] [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: 10/27/2023] [Accepted: 03/27/2024] [Indexed: 06/18/2024]
Abstract
BACKGROUND Olfactory impairment is common in older adults and may be associated with adverse cardiovascular health; however, empirical evidence is sparse. We examined olfaction in relation to the risk of coronary heart disease (CHD), stroke, and congestive heart failure (CHF). METHODS AND RESULTS This study included 2537 older adults (aged 75.6±2.8 years) from the Health ABC (Health, Aging, and Body Composition) study with olfaction assessed by the 12-item Brief Smell Identification Test in 1999 to 2000, defined as poor (score ≤8), moderate (9-10), or good (11-12). The outcomes were incident CHD, stroke, and CHF. During up to a 12-year follow-up, 353 incident CHD, 258 stroke, and 477 CHF events were identified. Olfaction was statistically significantly associated with incident CHF, but not with CHD or stroke. After adjusting for demographics, risk factors, and biomarkers of CHF, the cause-specific hazard ratio (HR) of CHF was 1.32 (95% CI, 1.05-1.66) for moderate and 1.28 (95% CI, 1.01-1.64) for poor olfaction. These associations were robust in preplanned subgroup analyses by age, sex, race, and prevalent CHD/stroke. While the subgroup results were not statistically significantly different, the association of olfaction with CHF appeared to be evident among participants who reported very good to excellent health (HR, 1.47 [95% CI, 1.01-2.14] for moderate; and 1.76 [95% CI, 1.20-2.58] for poor olfaction), but not among those with fair to poor self-reported health (HR, 1.04 [95% CI, 0.64-1.70] for moderate; and 0.92 [95% CI, 0.58-1.47] for poor olfaction). CONCLUSIONS In community-dwelling older adults, a single olfaction test was associated with a long-term risk for incident CHF, particularly among those reporting very good to excellent health.
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Affiliation(s)
- Keran W. Chamberlin
- Department of Epidemiology and Biostatistics, College of Human MedicineMichigan State UniversityEast LansingMI
| | - Yaqun Yuan
- Department of Epidemiology and Biostatistics, College of Human MedicineMichigan State UniversityEast LansingMI
| | - Chenxi Li
- Department of Epidemiology and Biostatistics, College of Human MedicineMichigan State UniversityEast LansingMI
| | - Zhehui Luo
- Department of Epidemiology and Biostatistics, College of Human MedicineMichigan State UniversityEast LansingMI
| | - Mathew Reeves
- Department of Epidemiology and Biostatistics, College of Human MedicineMichigan State UniversityEast LansingMI
| | - Anna Kucharska‐Newton
- Department of EpidemiologyGillings School of Global Public Health, University of North Carolina at Chapel HillChapel HillNC
| | - Jayant M. Pinto
- Section of Otolaryngology‐Head and Neck Surgery, Department of SurgeryThe University of Chicago Medicine and Biological SciencesChicagoIL
| | - Jiantao Ma
- Division of Nutrition Epidemiology and Data Science, Gerald J. and Dorothy R. Friedman School of Nutrition Science and PolicyTufts UniversityBostonMA
| | - Eleanor M. Simonsick
- Translational Gerontology Branch, Intramural Research Program of the National Institutes of HealthNational Institute on AgingBethesdaMD
| | - Honglei Chen
- Department of Epidemiology and Biostatistics, College of Human MedicineMichigan State UniversityEast LansingMI
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Namiranian K, Gauthier AC, Gilbert JA, Mathieu ME. The association between parameters of physical activity and olfactory function-the importance of frequency and moderate intensity. Front Sports Act Living 2024; 6:1394858. [PMID: 38903386 PMCID: PMC11188330 DOI: 10.3389/fspor.2024.1394858] [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: 03/07/2024] [Accepted: 05/13/2024] [Indexed: 06/22/2024] Open
Abstract
Introduction Overall physical activity (PA) has been linked to decreased olfactory dysfunction and could improve olfactory function. Additionally, decreased olfactory function can contribute to reduced overall PA levels, given its association with neurodegenerative disorders. This study aims to examine the relationship between specific PA parameters (duration, frequency, intensity) and olfactory function in adults. Methods A total of 3,527 participants from the National Health and Nutrition Examination Survey (NHANES) 2013-2014 underwent assessments for weekly PA duration, frequency, and intensity, alongside a smell test (including odors such as chocolate, strawberry, grape, onion, smoke, natural gas, leather, and soap). Correlation analyses and binary logistic regressions using SPSS were used to evaluate associations. Results The total smell score exhibited small yet significant positive correlations with the duration, frequency, and volume of moderate PA (correlation coefficients ranging between 0.05 and 0.08; all p ≤ 0.05) and frequency of vigorous PA (correlation coefficient of 0.05; p < 0.05). For moderate PA, the duration, frequency, and volume were significantly and positively associated with the ability to correctly detect the smell of grapes while the frequency was significantly and positively associated with the ability to identify smoke and leather odors (odds ratios ranging from 1.01 to 1.07; p < 0.05). For vigorous PA, the frequency of PA was positively associated with the detection of grape smell (odds ratio of 1.05; p < 0.05). Conclusion Some parameters of an active lifestyle are associated with improved odds of accurately identifying odors by up to 7.4%. Moderate PA duration, frequency, and volume were linked to better olfactory scores, while high-intensity PA had limited associations.
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Affiliation(s)
- Khoosheh Namiranian
- School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Alexandre-Charles Gauthier
- School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Jo-Anne Gilbert
- School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Marie-Eve Mathieu
- School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Azrieli Research Center—Sainte-Justine University Hospital Center, Chemin de la Côte-Sainte-Catherine, Montréal, QC, Canada
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Al-Amouri FM, Badrasawi M. Taste alteration and its relationship with nutritional status among cancer patients receiving chemotherapy, cross-sectional study. PLoS One 2024; 19:e0302990. [PMID: 38723006 PMCID: PMC11081316 DOI: 10.1371/journal.pone.0302990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 04/16/2024] [Indexed: 05/13/2024] Open
Abstract
The aim of this study is to determine the prevalence of taste alterations (TAs) during chemotherapy and their association with nutritional status and malnutrition. In addition to the associated factors with TA, including sociodemographic health-related factors and clinical status, and to investigate coping strategies to manage TA. A multicenter cross-sectional design study was conducted on 120 cancer patients aged at least 18 who had been undergoing at least one round of chemotherapy. TAs were evaluated using the chemotherapy-induced taste alteration scale (CiTAS), the malnutrition universal screening tool (MUST) was used for nutritional screening, the antineoplastic side effects scale (ASES) was used for subjective assessment of chemotherapy side effects, and the Charlson comorbidity index (CCI) was used for comorbidity assessment. SPSS21 software was used to analyze the data, and the independent T-test and one-way ANOVA test were used to determine the association between TAs and a variety of related variables. The prevalence of TAs was 98.3%. Among participants, 48.3% were at low risk of malnutrition, 20% at medium risk, and 31.7% at high risk. Malnutrition risk was associated with taste disorders (p<0.05). Patients' age, gender, educational level, and physical status were associated with TAs (p<0.05). Type of cancer, chemotherapy regimen, and number of chemotherapy cycles were also associated with TAs (p<0.05). A variety of antineoplastic side effects were associated with TAs (p<0.05), including nausea, vomiting, dry mouth, sore mouth and throat, excessive thirst, swallowing difficulty, appetite changes, weight loss, dizziness, lack of energy, disturbed sleep, anxiety, and difficulty concentrating. TAs were associated with an increased number of comorbidities, and individuals with diabetes, pulmonary diseases, and hypertension were associated with TAs (P<0.05). Patients in this study rarely practice self-management strategies to cope with TAs. A high prevalence (98.3%) of TAs in cancer patients receiving chemotherapy was found, and it was linked to a variety of negative outcomes. Chemotherapy-induced TAs are an underestimated side effect that requires more attention from patients and health care providers.
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Affiliation(s)
- Fatima Masoud Al-Amouri
- Department of Nutrition and Food Technology, An-Najah National University, Nablus, Palestine
| | - Manal Badrasawi
- Department of Nutrition and Food Technology, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
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Schertel Cassiano L, Leite FRM, Alves-Costa S, Costa SA, Nascimento GG. Oral conditions are associated with salt taste disability among American adults. Oral Dis 2024. [PMID: 38566452 DOI: 10.1111/odi.14926] [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: 04/06/2023] [Revised: 10/30/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024]
Abstract
AIM To explore the association between oral conditions and their interaction with salt taste disability among American adults. METHODS Data from the 2013-2014 NHANES cycle were used (n = 2373). The exposures were periodontitis, defined by the 2017 EFP-AAP classification, dental caries, missing teeth, and edentulism, as per the DMF-T index, and xerostomia. The outcome was salt taste disability, objectively assessed. Covariates included sex, age, educational level, poverty index, obesity, diabetes, smoking, alcohol consumption, and medications related to mouth dryness. Weighted multivariable logistic regression modeling was used to evaluate the relationship between oral conditions and their interaction and salt taste disability. RESULTS Participants who reported xerostomia were more likely to have salt taste disability (OR 2.42; 95%CI 1.44-4.07), especially those older than 60 years (OR 3.63; 95%CI 1.72-7.63). Among participants aged 40-59, xerostomia increased the chance of salt taste disability; however, the confidence interval included the null value. The interactions between xerostomia and edentulism increased the chance of salt taste disability. CONCLUSION Oral conditions seem to influence the ability to taste salt. Dental professionals may help identify individuals with taste alterations and raise their awareness of the risk of systemic diseases that require the reduction of salt intake.
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Affiliation(s)
| | - Fábio R M Leite
- National Dental Research Institute Singapore, National Dental Centre Singapore, Singapore, Singapore
- Oral Health Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Silas Alves-Costa
- Graduate Program in Dentistry, Federal University of Maranhão, São Luís, Brazil
| | | | - Gustavo G Nascimento
- National Dental Research Institute Singapore, National Dental Centre Singapore, Singapore, Singapore
- Oral Health Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore
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Soflaei Saffar S, Nazar E, Sahranavard T, Fayedeh F, Moodi Ghalibaf A, Ebrahimi M, Alimi H, Shahri B, Izadi-Moud A, Ferns GA, Ghodsi A, Mehrabi S, Tarhimi M, Esmaily H, Moohebati M, Ghayour-Mobarhan M. Association of T-wave electrocardiogram changes and type 2 diabetes: a cross-sectional sub-analysis of the MASHAD cohort population using the Minnesota coding system. BMC Cardiovasc Disord 2024; 24:48. [PMID: 38218755 PMCID: PMC10788011 DOI: 10.1186/s12872-023-03649-2] [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: 07/30/2023] [Accepted: 11/30/2023] [Indexed: 01/15/2024] Open
Abstract
BACKGROUND Type 2 Diabetes Mellitus (T2DM) has become a major health concern with an increasing prevalence and is now one of the leading attributable causes of death globally. T2DM and cardiovascular disease are strongly associated and T2DM is an important independent risk factor for ischemic heart disease. T-wave abnormalities (TWA) on electrocardiogram (ECG) can indicate several pathologies including ischemia. In this study, we aimed to investigate the association between T2DM and T-wave changes using the Minnesota coding system. METHODS A cross-sectional study was conducted on the MASHAD cohort study population. All participants of the cohort population were enrolled in the study. 12-lead ECG and Minnesota coding system (codes 5-1 to 5-4) were utilized for T-wave observation and interpretation. Regression models were used for the final evaluation with a level of significance being considered at p < 0.05. RESULTS A total of 9035 participants aged 35-65 years old were included in the study, of whom 1273 were diabetic. The prevalence of code 5-2, 5-3, major and minor TWA were significantly higher in diabetics (p < 0.05). However, following adjustment for age, gender, and hypertension, the presence of TWAs was not significantly associated with T2DM (p > 0.05). Hypertension, age, and body mass index were significantly associated with T2DM (p < 0.05). CONCLUSIONS Although some T-wave abnormalities were more frequent in diabetics, they were not statistically associated with the presence of T2DM in our study.
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Affiliation(s)
- Sara Soflaei Saffar
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Eisa Nazar
- Orthopedic Research Center, Mazandaran University of Medical Sciences, Sari, Iran
- Psychiatry and Behavioral Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Toktam Sahranavard
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzad Fayedeh
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Mahmoud Ebrahimi
- Vascular and Endovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hedieh Alimi
- Vascular and Endovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahram Shahri
- Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Azadeh Izadi-Moud
- Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton and Sussex Medical School, Division of Medical Education, Brighton, UK
| | - Alireza Ghodsi
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeed Mehrabi
- Department of Cardiology, Faculty of Medicine, Gonabad University of Medical Sciences, Mashhad, Iran
| | - Milad Tarhimi
- Department of Cardiology, Faculty of Medicine, Gonabad University of Medical Sciences, Mashhad, Iran
| | - Habibollah Esmaily
- Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Moohebati
- Vascular and Endovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Majid Ghayour-Mobarhan
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran.
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, 99199-91766, Iran.
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Vegas Aguilar IM, Porca Fernández C, Casañas Quintana T, Calleja Fernández A, Tejera Pérez C, Tinahones Madueño FJ, Bellido Guerrero D, García Almeida JM. [Organoleptic evaluation of a diabetes-specific oral nutritional supplement with extra virgin olive oil in patients at nutritional risk and type 2 diabetes mellitus: Double-blind, randomized, crossover and multicenter clinical trial (DIACARE)]. NUTR HOSP 2023; 40:686-691. [PMID: 37409710 DOI: 10.20960/nh.04569] [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] [Indexed: 07/07/2023] Open
Abstract
Introduction Introduction: oral nutritional supplements specific for diabetes (DSF) usually have a composition that favors their palatability and simultaneous glycemic and metabolic control. Objetive: to compare the sensory acceptability of a DSF with respect to a standard oral nutritional supplement (STF) in patients at risk of malnutrition with type 2 diabetes mellitus. Method: randomized, double-blind, crossover, multicenter, controlled, double-blind clinical trial. Odor, taste and perceived texture of a DSF and a STD were evaluated using a scale of 1 to 4. Results: twenty-nine patients were recruited and 58 organoleptic evaluations of the supplements were registered. A better evaluation of DSF was observed with respect to STD, although no statistically significant differences were reached: odor, 0.04 (CI 95 %) -0.49 to 0.56 (p = 0.092); taste, 0.14 (CI 95 %), -0.35 to 0.63 (p = 0.561); texture, 0.14 (CI 95 %), -0.43 to 0.72 (p = 0.619). No differences were found when analyzed by order of randomization, sex, degree of malnutrition, greater or lesser degree of complexity, greater or lesser time of evolution of diabetes, or by being older or younger. Conclusions: the specific nutritional supplement for diabetic patients formulated with extra virgin olive oil, EPA and DHA, a specific mixture of carbohydrates, and fiber, presented an adequate sensory acceptance by malnourished patients with type 2 diabetes mellitus.
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Affiliation(s)
| | | | | | | | - Cristina Tejera Pérez
- Servicio de Endocrinología y Nutrición. Complejo Hospitalario Universitario de Ferrol
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Sińska BI, Kucharska A, Czarnecka K, Harton A, Szypowska A, Traczyk I. Sensitivity to Sweet and Salty Tastes in Children and Adolescents with Type 1 Diabetes. Nutrients 2022; 15:nu15010172. [PMID: 36615831 PMCID: PMC9824369 DOI: 10.3390/nu15010172] [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: 11/30/2022] [Revised: 12/22/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Taste function impairment is observed in people with type 1 diabetes (T1D). It is most often related to sweet taste. It is associated with such factors as diabetic neuropathy, smoking, age, duration of the disease and a rigorous diet that eliminates easily digestible carbohydrates. The aim of the study was to compare sensitivity to sweet and salty tastes between healthy children and adolescents and children and adolescents with T1D. The study group consisted of children with T1D (n = 35), with at least 5 years of disease history, while the group of healthy children included 46 individuals selected in terms of age, gender and BMI. A study concerning the perception of sweet and salty taste was carried out with the use of the specific gustometry method (examining the recognition and assessment of the intensity of taste sensations, performing a hedonic assessment). Children and adolescents from both groups had trouble recognising tastes. Children and adolescents with T1D were more likely to recognise sweet taste correctly even at its lower concentrations compared to healthy individuals (p = 0.04). Salty taste was significantly more often correctly identified by healthy children compared to T1D patients (p = 0.01). Children and adolescents with T1D reported a stronger intensity of perceived tastes than healthy ones. No significant differences in perceived pleasure were noted at lower sucrose concentrations in any group. The intensity score was higher in individuals with T1D at higher sucrose concentrations. No significant differences occurred in the assessment of salty taste intensity. The hedonic scoring of solutions with higher concentrations of sweet taste was higher in people with T1D than in healthy ones, while salty taste was assessed neutrally. Children and adolescents with T1D were demonstrated to have some taste recognition disorders. Therefore, monitoring taste function in pediatric diabetic clinical practice seems relevant, as it may be associated with important implications for the intake of a particular type of food and for the development of eating habits and preferences.
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Affiliation(s)
- Beata I. Sińska
- Department of Human Nutrition, Faculty of Health Sciences, Medical University of Warsaw, 27 Erazma Ciołka Street, 01-445 Warsaw, Poland
- Correspondence:
| | - Alicja Kucharska
- Department of Human Nutrition, Faculty of Health Sciences, Medical University of Warsaw, 27 Erazma Ciołka Street, 01-445 Warsaw, Poland
| | - Katarzyna Czarnecka
- Department of Human Nutrition, Faculty of Health Sciences, Medical University of Warsaw, 27 Erazma Ciołka Street, 01-445 Warsaw, Poland
| | - Anna Harton
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS), 159C Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Agnieszka Szypowska
- Department of Pediatrics, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Iwona Traczyk
- Department of Human Nutrition, Faculty of Health Sciences, Medical University of Warsaw, 27 Erazma Ciołka Street, 01-445 Warsaw, Poland
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Bloody olfaction? Confounding associations of sex and age on the influence of blood parameters and body weight on odor identification performance in healthy adults. Physiol Behav 2022; 254:113907. [PMID: 35817126 DOI: 10.1016/j.physbeh.2022.113907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 11/20/2022]
Abstract
Olfactory function and nutrition are closely related and may influence each other via metabolic parameters. However, the relationship between nutritional blood parameters and olfactory performance is still unclear. Inconclusive findings exist for specific blood parameters. In this extensive analysis, we examined the relationship between olfactory performance, measured with MONEX-40, as well as intensity and pleasantness ratings with 38 metabolic blood parameters, age, sex, and the anthropometric measurements body mass index (BMI) and body fat percentage (BFP). Therefore, we included data of 418 healthy, well-phenotyped Caucasians of the Enable cohort. We replicated age-dependent olfactory identification scores (p < 0.001) and found slight evidence for a body fat dependence measured with BFP (BF10 = 10.466). We further identified a sex difference only in middle-aged adults (p < 0.001) that could be explained by environmental factors. Several blood parameters correlated significantly with the MONEX-40 score (p < 0.05 - p < 0.001). However, these effects diminished after adjusting for sex and age (p > 0.9) that were identified as confounders. The same applies for BFP. In addition, no parameters were identified to correlate significantly with perceived olfactory intensity or pleasantness score if controlled for sex and age (p > 0.08). Our results suggest that metabolic blood parameters are not related to olfactory identification performance in a relevant manner and highlight the importance of controlling for sex and age in chemosensory research.
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11
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Caretta A, Mucignat-Caretta C. Not Only COVID-19: Involvement of Multiple Chemosensory Systems in Human Diseases. Front Neural Circuits 2022; 16:862005. [PMID: 35547642 PMCID: PMC9081982 DOI: 10.3389/fncir.2022.862005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Chemosensory systems are deemed marginal in human pathology. In appraising their role, we aim at suggesting a paradigm shift based on the available clinical and experimental data that will be discussed. Taste and olfaction are polymodal sensory systems, providing inputs to many brain structures that regulate crucial visceral functions, including metabolism but also endocrine, cardiovascular, respiratory, and immune systems. Moreover, other visceral chemosensory systems monitor different essential chemical parameters of “milieu intérieur,” transmitting their data to the brain areas receiving taste and olfactory inputs; hence, they participate in regulating the same vital functions. These chemosensory cells share many molecular features with olfactory or taste receptor cells, thus they may be affected by the same pathological events. In most COVID-19 patients, taste and olfaction are disturbed. This may represent only a small portion of a broadly diffuse chemosensory incapacitation. Indeed, many COVID-19 peculiar symptoms may be explained by the impairment of visceral chemosensory systems, for example, silent hypoxia, diarrhea, and the “cytokine storm”. Dysregulation of chemosensory systems may underlie the much higher mortality rate of COVID-19 Acute Respiratory Distress Syndrome (ARDS) compared to ARDSs of different origins. In chronic non-infectious diseases like hypertension, diabetes, or cancer, the impairment of taste and/or olfaction has been consistently reported. This may signal diffuse chemosensory failure, possibly worsening the prognosis of these patients. Incapacitation of one or few chemosensory systems has negligible effects on survival under ordinary life conditions but, under stress, like metabolic imbalance or COVID-19 pneumonia, the impairment of multiple chemosensory systems may lead to dire consequences during the course of the disease.
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Affiliation(s)
- Antonio Caretta
- National Institute for Biostructures and Biosystems (NIBB), Rome, Italy
- Department of Food and Drug Science, University of Parma, Parma, Italy
| | - Carla Mucignat-Caretta
- National Institute for Biostructures and Biosystems (NIBB), Rome, Italy
- Department of Molecular Medicine, University of Padova, Padua, Italy
- *Correspondence: Carla Mucignat-Caretta,
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12
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Novak Kujundžić R. COVID-19: Are We Facing Secondary Pellagra Which Cannot Simply Be Cured by Vitamin B3? Int J Mol Sci 2022; 23:ijms23084309. [PMID: 35457123 PMCID: PMC9032523 DOI: 10.3390/ijms23084309] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/07/2023] Open
Abstract
Immune response to SARS-CoV-2 and ensuing inflammation pose a huge challenge to the host’s nicotinamide adenine dinucleotide (NAD+) metabolism. Humans depend on vitamin B3 for biosynthesis of NAD+, indispensable for many metabolic and NAD+-consuming signaling reactions. The balance between its utilization and resynthesis is vitally important. Many extra-pulmonary symptoms of COVID-19 strikingly resemble those of pellagra, vitamin B3 deficiency (e.g., diarrhoea, dermatitis, oral cavity and tongue manifestations, loss of smell and taste, mental confusion). In most developed countries, pellagra is successfully eradicated by vitamin B3 fortification programs. Thus, conceivably, it has not been suspected as a cause of COVID-19 symptoms. Here, the deregulation of the NAD+ metabolism in response to the SARS-CoV-2 infection is reviewed, with special emphasis on the differences in the NAD+ biosynthetic pathway’s efficiency in conditions predisposing for the development of serious COVID-19. SARS-CoV-2 infection-induced NAD+ depletion and the elevated levels of its metabolites contribute to the development of a systemic disease. Acute liberation of nicotinamide (NAM) in antiviral NAD+-consuming reactions potentiates “NAM drain”, cooperatively mediated by nicotinamide N-methyltransferase and aldehyde oxidase. “NAM drain” compromises the NAD+ salvage pathway’s fail-safe function. The robustness of the host’s NAD+ salvage pathway, prior to the SARS-CoV-2 infection, is an important determinant of COVID-19 severity and persistence of certain symptoms upon resolution of infection.
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Affiliation(s)
- Renata Novak Kujundžić
- Laboratory for Epigenomics, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
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13
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Sensory Capacities and Eating Behavior: Intriguing Results from a Large Cohort of Italian Individuals. Foods 2022; 11:foods11050735. [PMID: 35267368 PMCID: PMC8909480 DOI: 10.3390/foods11050735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 11/16/2022] Open
Abstract
Eating behavior (EB) is a complex system influenced by many factors, but an undisputed role is played by the senses. In this work, we examined the effect of the sensory capacities on EB in 1152 Italian adult individuals. After administering a questionnaire on EB and assessing sensory performance through standard audiometric, olfactory, and taste tests, the prevalence of reduced sensory capacities (RSCs) and the correlation with selected risk factors were calculated. Regression models, structural equation modelling, and conditional recursive partitioning were used to investigate the relationship between variables. Around 70% of the subjects show reduced capacities in at least one sense, with taste being the most prevalent (55.21%). Male sex, aging, and low educational level are risk factors for RSCs. The increased number of senses with reduced capacities is a predictor of diminished food adventurousness and lower liking for vegetables, fish, and alcoholic beverages, while reduced capacities (RCs) in taste is a predictor of lower liking for alcoholic beverages and sweets. Overall, in addition to providing an overall picture of RSCs in Italian samples, our study reveals the association of RSCs with EB variables. This finding could have a relevant role in influencing individuals’ dietary habits and, therefore, health status.
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14
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Eulalia C, Luciano N, Paolo G, Antonietta R. Are taste variations associated with the liking of sweetened and unsweetened coffee? Physiol Behav 2022; 244:113655. [PMID: 34813822 DOI: 10.1016/j.physbeh.2021.113655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/11/2021] [Accepted: 11/18/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE In this study, we evaluated the influence of taste phenotypes and genotypes on the hedonics of sweetened and unsweetened coffee. METHODS Liking of espresso coffee from food questionnaire and of a ready-to-drink unsweetened coffee beverage was measured using a 9-point hedonic scale in 1551 Italian individuals. Perception and liking for different bitter and sweet compounds were also collected. Genotyping of selected Single Nucleotide Polymorphisms (SNPs) in five taste genes (TAS1R3, GNAT3, TAS2R14, TAS2R19, TAS2R38) was performed. Linear and logistic regression models, including sex and gender as covariates, were used to test the relationship of taste phenotypes and selected SNPs with coffee liking. RESULTS We found that increased caffeine bitterness perception was associated with an increasing liking for sweetened coffee (p-value = 0.018) and decreased liking of unsweetened coffee (p-value = 0.034). The liking of unsweetened coffee beverage was also negatively associated with sweet intensity perception (p-value = 0.03). Analysis of SNPs in taste-related genes showed that rs6467192 G allele (intron 4 variant) in GNAT3 sweet taste gene was associated with higher liking of sweetened coffee (p-value = 0.002) and lower liking of unsweetened coffee (p-value = 0.01). An association also emerged between unsweetened coffee and SNPs in bitter receptor genes, with rs2597979 in TAS2R14 gene associated with liking of unsweetened coffee (p-value = 0.004) and rs10772420 in TAS2R19 gene associated with liking of both unsweetened espresso coffee and coffee beverage (p-value = 0.04 and p-value = 0.03, respectively). CONCLUSION These findings suggested that individual preference for sweetened and unsweetened coffee may be influenced by both phenotypic and nucleotide variations in bitter and sweet taste sensitivity.
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Affiliation(s)
- Catamo Eulalia
- Institute for Maternal and Child Health - IRCCS ''Burlo Garofolo", Via dell'Istria 65/1, 34137, Trieste, Italy; Department of Medical Sciences, University of Trieste, Strada di Fiume 447, 34149, Trieste, Italy.
| | | | - Gasparini Paolo
- Institute for Maternal and Child Health - IRCCS ''Burlo Garofolo", Via dell'Istria 65/1, 34137, Trieste, Italy; Department of Medical Sciences, University of Trieste, Strada di Fiume 447, 34149, Trieste, Italy
| | - Robino Antonietta
- Institute for Maternal and Child Health - IRCCS ''Burlo Garofolo", Via dell'Istria 65/1, 34137, Trieste, Italy
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15
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Catamo E, Robino A, Tinti D, Dovc K, Franceschi R, Giangreco M, Gasparini P, Barbi E, Cauvin V, Rabbone I, Battelino T, Tornese G. Altered Taste Function in Young Individuals With Type 1 Diabetes. Front Nutr 2022; 8:797920. [PMID: 35096943 PMCID: PMC8790289 DOI: 10.3389/fnut.2021.797920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/08/2021] [Indexed: 01/08/2023] Open
Abstract
Past studies on altered taste function in individuals with type 1 diabetes have yielded inconsistent results. We therefore evaluated taste recognition and possible association with personal and diseases characteristics in young individuals with type 1 diabetes and healthy controls. Taste recognition and intensity for 6-n-propylthiouracil (PROP), quinine, citric acid, sucrose, and sodium chloride were assessed using a filter paper method in 276 participants with type 1 diabetes and 147 healthy controls. Personal and clinical data were recorded for all participants during a baseline visit. Regression analysis was adjusted for sex, age, and standardized BMI. Overall, 47% of participants with type 1 diabetes vs. 63.5% of healthy controls recognized all tastes (p = 0.006). Moreover, a lower capacity for recognizing the bitter taste of PROP and the sour taste of citric acid was found in participants with type 1 diabetes compared to healthy controls (p = 0.014 and p = 0.003, respectively). While no significant effect of glycemic control on taste recognition was found, an association with lower age at onset emerged. Our findings suggest an impaired taste perception in individuals with type 1 diabetes, possibly linked to age at onset.
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Affiliation(s)
- Eulalia Catamo
- Institute for Maternal and Child Health, Scientific Institute for Research, Hospitalization and Healthcare Burlo Garofolo (IRCCS), Trieste, Italy
| | - Antonietta Robino
- Institute for Maternal and Child Health, Scientific Institute for Research, Hospitalization and Healthcare Burlo Garofolo (IRCCS), Trieste, Italy
| | - Davide Tinti
- Center for Pediatric Diabetology, A.O.U. Città della Salute e della Scienza, Torino, Italy
| | - Klemen Dovc
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Department of Endocrinology, Diabetes and Metabolism, University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | | | - Manuela Giangreco
- Institute for Maternal and Child Health, Scientific Institute for Research, Hospitalization and Healthcare Burlo Garofolo (IRCCS), Trieste, Italy
| | - Paolo Gasparini
- Institute for Maternal and Child Health, Scientific Institute for Research, Hospitalization and Healthcare Burlo Garofolo (IRCCS), Trieste, Italy.,Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Egidio Barbi
- Institute for Maternal and Child Health, Scientific Institute for Research, Hospitalization and Healthcare Burlo Garofolo (IRCCS), Trieste, Italy.,Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Vittoria Cauvin
- Division of Pediatrics, S. Chiara General Hospital, Trento, Italy
| | - Ivana Rabbone
- Center for Pediatric Diabetology, A.O.U. Città della Salute e della Scienza, Torino, Italy.,Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Tadej Battelino
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Department of Endocrinology, Diabetes and Metabolism, University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Gianluca Tornese
- Institute for Maternal and Child Health, Scientific Institute for Research, Hospitalization and Healthcare Burlo Garofolo (IRCCS), Trieste, Italy
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16
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Faour M, Magnan C, Gurden H, Martin C. Olfaction in the context of obesity and diabetes: Insights from animal models to humans. Neuropharmacology 2021; 206:108923. [PMID: 34919903 DOI: 10.1016/j.neuropharm.2021.108923] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 12/12/2022]
Abstract
The olfactory system is at the crossroad between sensory processing and metabolic sensing. In addition to being the center of detection and identification of food odors, it is a sensor for most of the hormones and nutrients responsible for feeding behavior regulation. The consequences of modifications in body homeostasis, nutrient overload and alteration of this brain network in the pathological condition of food-induced obesity and type 2 diabetes are still not elucidated. The aim of this review was first to use both humans and animal studies to report on the current knowledge of the consequences of obesity and type 2 diabetes on odorant threshold and olfactory perception including identification discrimination and memory. We then discuss how olfactory processing can be modified by an alteration of the metabolic homeostasis of the organism and available elements on pharmacological treatments that regulate olfaction. We focus on data within the olfactory system but also on the interactions between the olfactory system and other brain networks impacted by metabolic diseases.
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Affiliation(s)
- Maya Faour
- Université de Paris, BFA, UMR 8251, CNRS, F-75013, Paris, France
| | | | - Hirac Gurden
- Université de Paris, BFA, UMR 8251, CNRS, F-75013, Paris, France
| | - Claire Martin
- Université de Paris, BFA, UMR 8251, CNRS, F-75013, Paris, France.
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17
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Tan SY, Hack C, Yu C, Rennick I, Ohanian J, Dezan M, Mott N, Manibo R, Tucker RM. Alterations in sweet taste function in adults with diabetes mellitus: a systematic review and potential implications. Crit Rev Food Sci Nutr 2021; 63:2613-2625. [PMID: 34904473 DOI: 10.1080/10408398.2021.2015282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Diet therapy for diabetes involves controlling carbohydrate intake in order to manage blood glucose concentrations. Simple carbohydrates, like sucrose, quickly and potently raise blood glucose when ingested, and are typically perceived as sweet. Sweetness is innately pleasurable and contributes to the positive hedonic evaluation of foods and beverages. There is some evidence to suggest that individuals with diabetes mellitus may be less able to detect sweetness, which could result in increased intake and, thus, more difficulty managing blood glucose. A systematic review that included PubMed, PsycInfo, and Embase databases was conducted. Inclusion criteria included observational studies that investigated the sweet taste function of adults with and without diabetes mellitus (Prospero CRD42021225058). The quality of the final included studies was assessed using the Academy of Nutrition and Dietetics' Evidence Analysis Library Quality Criteria Checklist: Primary Research tool. Eighteen studies that compared sweet taste thresholds, intensity ratings, or hedonic responses in adults both with and without diabetes were included. Differences in sweet taste thresholds, both detection and recognition, indicated that individuals with diabetes were less sensitive than healthy controls. The same findings were observed for intensity ratings. Only two studies examined hedonic responses; results were inconclusive.
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Affiliation(s)
- Sze-Yen Tan
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia.,Institute for Physical Activity and Nutrition (IPAN), Deakin University, Burwood, Australia
| | - Caitlyn Hack
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - Cindy Yu
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - Isabella Rennick
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - James Ohanian
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - Marina Dezan
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - Nicole Mott
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - Rebecca Manibo
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Australia
| | - Robin M Tucker
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, USA
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18
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Caretta A, Mucignat-Caretta C. Are Multiple Chemosensory Systems Accountable for COVID-19 Outcome? J Clin Med 2021; 10:5601. [PMID: 34884303 PMCID: PMC8658083 DOI: 10.3390/jcm10235601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 01/03/2023] Open
Abstract
Chemosensory systems (olfaction, taste, trigeminus nerve, solitary chemoreceptor cells, neuroendocrine pulmonary cells, and carotid body, etc.) detect molecules outside or inside our body and may share common molecular markers. In addition to the impairment of taste and olfaction, the detection of the internal chemical environment may also be incapacitated by COVID-19. If this is the case, different consequences can be expected. (1) In some patients, hypoxia does not trigger distressing dyspnea ("silent" hypoxia): Long-term follow-up may determine whether silent hypoxia is related to malfunctioning of carotid body chemoreceptors. Moreover, taste/olfaction and oxygen chemoreceptors may be hit simultaneously: Testing olfaction, taste, and oxygen chemoreceptor functions in the early stages of COVID-19 allows one to unravel their connections and trace the recovery path. (2) Solitary chemosensory cells are also involved in the regulation of the innate mucosal immune response: If these cells are affected in some COVID-19 patients, the mucosal innate immune response would be dysregulated, opening one up to massive infection, thus explaining why COVID-19 has lethal consequences in some patients. Similar to taste and olfaction, oxygen chemosensory function can be easily tested with a non-invasive procedure in humans, while functional tests for solitary chemosensory or pulmonary neuroendocrine cells are not available, and autoptic investigation is required to ascertain their involvement.
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Affiliation(s)
- Antonio Caretta
- Department of Food and Drug Science, University of Parma, 43100 Parma, Italy;
- NIBB—National Institute for Biostructures and Biosystems, 00136 Rome, Italy
| | - Carla Mucignat-Caretta
- NIBB—National Institute for Biostructures and Biosystems, 00136 Rome, Italy
- Department of Molecular Medicine, University of Padova, 35131 Padova, Italy
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19
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Abstract
Age-related olfactory dysfunction, or presbyosmia, is a common sensory impairment in aging adults. People in this demographic group with comorbid conditions or exposure to viral, traumatic, or environmental insults remain at the greatest risk for impairment. Several methods for assessing olfaction exist, but they are only available in special settings and require consideration of age, sex, ancestry, and cognition. Perhaps most importantly, olfactory dysfunction has been suggested as an early sign of Alzheimer's and Parkinson's disease and therefore may serve as a tool in the diagnosis and prognosis of these neurodegenerative conditions. Outside of this context, olfactory loss also impacts nutrition, safety, and social relationships, and even predicts mortality itself. This review covers the detection and manifestations of olfactory decline in aging individuals and the myriad ways in which olfactory impairment is connected to their health and well-being.
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Affiliation(s)
- Emily J Papazian
- Pritzker School of Medicine, The University of Chicago, Chicago, IL, USA
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Jayant M Pinto
- Section of Otolaryngology-Head and Neck Surgery, Department of Surgery, The University of Chicago Medicine, Chicago, IL, USA
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