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Fonseca LM, Schmidt JJ, Snoek FJ, Weinstock RS, Chaytor N, Stuckey H, Ryan CM, van Duinkerken E. Barriers and Facilitators of Self-Management in Older People with Type 1 Diabetes: A Narrative Review Focusing on Cognitive Impairment. Diabetes Metab Syndr Obes 2024; 17:2403-2417. [PMID: 38872713 PMCID: PMC11175657 DOI: 10.2147/dmso.s410363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 05/30/2024] [Indexed: 06/15/2024] Open
Abstract
Over the past decades, life expectancy of people with type 1 diabetes has increased considerably, which brings potential challenges due to the process of aging. Cognitive aging and dementia, as well as reductions in visual acuity, hearing and dexterity, can influence the frequency and quality of daily self-management activities, including medication taking and insulin dosing, glucose self-monitoring, and healthy eating. This can increase the risk for hypo- and hyperglycemic events, which, in turn, may contribute to cognitive decline. Because there is a gap in understanding the barriers and facilitators of self-management in older adults with type 1 diabetes and the relationship to cognitive functioning, the authors 1) review the available literature on cognitive aging and type 1 diabetes, 2) describe what self-management in later adulthood entails and the cognitive functions required for effective self-management behaviors, 3) analyze the interaction between type 1 diabetes, cognition, aging, and self-management behaviors, and 4) describe the barriers and facilitators for self-management throughout the life span and how they may differ for older people. Potential evidence-based practices that could be developed for older adults with type 1 diabetes are discussed. There is need for further studies that clarify the impact of aging on T1D self-management, ultimately to improve diabetes care and quality of life.
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Affiliation(s)
- Luciana Mascarenhas Fonseca
- Department of Community and Behavioral Health, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, USA
- Programa Terceira Idade (PROTER, Old Age Research Group), Department and Institute of Psychiatry, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Juliana Janeiro Schmidt
- Post-Graduate Program in Neurology, Universidade Federal Do Estado Do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Frank J Snoek
- Department of Medical Psychology, Amsterdam University Medical Center, Vrije Universiteit, Amsterdam, the Netherlands
| | - Ruth S Weinstock
- Department of Medicine, Upstate Medical University, Syracuse, NY, USA
| | - Naomi Chaytor
- Department of Community and Behavioral Health, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, USA
| | - Heather Stuckey
- Department of Medicine, Penn State University College of Medicine, Hershey, PA, USA
| | - Christopher M Ryan
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Eelco van Duinkerken
- Post-Graduate Program in Neurology, Universidade Federal Do Estado Do Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Medical Psychology, Amsterdam University Medical Center, Vrije Universiteit, Amsterdam, the Netherlands
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Makizako H, Nakai Y, Akaida S, Taniguchi Y, Miwa T, Morimoto S. Association of Olfactory and Gustatory Function with Memory among Community-Dwelling Independent Older Adults. Ann Geriatr Med Res 2024; 28:178-183. [PMID: 38475663 PMCID: PMC11217661 DOI: 10.4235/agmr.23.0217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/04/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND This study examined the association between memory function and reduced olfactory and gustatory function among independent community-dwelling older adults. METHODS This cross-sectional study included 127 older adults (65.4% women). We assessed their memory, odor, and taste identification skills. Open essence (OE) test and taste strips (TS) were used to identify hyposmia (OE test ≤6) and hypogeusia (TS test ≤8), respectively. RESULTS Participants with severe hyposmia had significantly poorer memory functions compared to participants without severe hyposmia. After adjusting for covariates, multivariate logistic regression models revealed a significant association between immediate recognition performance and a decreased likelihood of severe hyposmia (odds ratio=0.65; 95% confidence interval 0.47-0.90). We observed no significant association between taste function and memory. CONCLUSION Memory function may be associated with olfactory impairment in older adults.
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Affiliation(s)
- Hyuma Makizako
- Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Yuki Nakai
- Department of Mechanical Systems Engineering, Faculty of Engineering, Daiichi Institute of Technology, Kagoshima, Japan
| | - Shoma Akaida
- Graduate School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Yoshiaki Taniguchi
- Department of Rehabilitation, Faculty of Nursing and Welfare, Kyushu University of Nursing and Social Welfare, Tamana, Kumamoto, Japan
| | - Takaki Miwa
- Department of Otorhinolaryngology, Kanazawa Medical University, Uchinada, Ishikawa, Japan
| | - Shigeto Morimoto
- Center for Comprehensive Care on Memory Disorders, Kanazawa Medical University, Uchinada, Ishikawa, Japan
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Xu J, Sun Y, Zhu X, Pan S, Tong Z, Jiang K. Tactile discrimination as a diagnostic indicator of cognitive decline in patients with mild cognitive impairment: A narrative review. Heliyon 2024; 10:e31256. [PMID: 38803967 PMCID: PMC11129005 DOI: 10.1016/j.heliyon.2024.e31256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 04/08/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Background Tactile discrimination, a cognitive task reliant on fingertip touch for stimulus discrimination, encompasses the somatosensory system and working memory, with its acuity diminishing with advancing age. Presently, the evaluation of cognitive capacity to differentiate between individuals with early Alzheimer's disease (AD) and typical older adults predominantly relies on visual or auditory tasks, yet the efficacy of discrimination remains constrained. Aims To review the existing tactile cognitive tasks and explore the interaction between tactile perception and the pathological process of Alzheimer's disease. The tactile discrimination task may be used as a reference index of cognitive decline in patients with mild cognitive impairment and provide a new method for clinical evaluation. Methods We searched four databases (Embase, PubMed, Web of Science and Google scholar). The reference coverage was from 1936 to 2023. The search terms included "Alzheimer disease" "mild cognitive impairment" "tactile" "tactile discrimination" "tactile test" and so on. Reviews and experimental reports in the field were examined and the effectiveness of different types of tactile tasks was compared. Main results Individuals in the initial phases of Alzheimer's spectrum disease, specifically those in the stage of mild cognitive impairment (MCI), exhibit notable impairments in tasks involving tactile discrimination. These tasks possess certain merits, such as their quick and straightforward comparability, independence from educational background, and ability to circumvent the limitations associated with conventional cognitive assessment scales. Furthermore, tactile discrimination tasks offer enhanced accuracy compared to cognitive tasks that employ visual or auditory stimuli. Conclusions Tactile discrimination has the potential to serve as an innovative reference indicator for the swift diagnosis of clinical MCI patients, thereby assisting in the screening process on a clinical scale.
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Affiliation(s)
- Jinan Xu
- Center for Applied Psychological Research (Ningbo), School of Mental Health, Wenzhou Medical University, Cixi, 315300, China
- School of Mental Health, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, School of Mental Health, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yuqi Sun
- Center for Applied Psychological Research (Ningbo), School of Mental Health, Wenzhou Medical University, Cixi, 315300, China
- School of Mental Health, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xianghe Zhu
- Center for Applied Psychological Research (Ningbo), School of Mental Health, Wenzhou Medical University, Cixi, 315300, China
- School of Mental Health, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, School of Mental Health, Wenzhou Medical University, Wenzhou, 325035, China
| | - Sipei Pan
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, School of Mental Health, Wenzhou Medical University, Wenzhou, 325035, China
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, China
| | - Zhiqian Tong
- Center for Applied Psychological Research (Ningbo), School of Mental Health, Wenzhou Medical University, Cixi, 315300, China
- School of Mental Health, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, School of Mental Health, Wenzhou Medical University, Wenzhou, 325035, China
| | - Ke Jiang
- Center for Applied Psychological Research (Ningbo), School of Mental Health, Wenzhou Medical University, Cixi, 315300, China
- School of Mental Health, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
- Center for Brain, Mind and Education, Shaoxing University, China
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Simonini L, Frijia F, Ait Ali L, Foffa I, Vecoli C, De Gori C, De Cori S, Baroni M, Aquaro GD, Maremmani C, Lombardo F. A Comprehensive Review of COVID-19-Related Olfactory Deficiency: Unraveling Associations with Neurocognitive Disorders and Magnetic Resonance Imaging Findings. Diagnostics (Basel) 2024; 14:359. [PMID: 38396398 PMCID: PMC10888385 DOI: 10.3390/diagnostics14040359] [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: 01/02/2024] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Olfactory dysfunction (OD) is one of the most common symptoms in COVID-19 patients and can impact patients' lives significantly. The aim of this review was to investigate the multifaceted impact of COVID-19 on the olfactory system and to provide an overview of magnetic resonance (MRI) findings and neurocognitive disorders in patients with COVID-19-related OD. Extensive searches were conducted across PubMed, Scopus, and Google Scholar until 5 December 2023. The included articles were 12 observational studies and 1 case report that assess structural changes in olfactory structures, highlighted through MRI, and 10 studies correlating the loss of smell with neurocognitive disorders or mood disorders in COVID-19 patients. MRI findings consistently indicate volumetric abnormalities, altered signal intensity of olfactory bulbs (OBs), and anomalies in the olfactory cortex among COVID-19 patients with persistent OD. The correlation between OD and neurocognitive deficits reveals associations with cognitive impairment, memory deficits, and persistent depressive symptoms. Treatment approaches, including olfactory training and pharmacological interventions, are discussed, emphasizing the need for sustained therapeutic interventions. This review points out several limitations in the current literature while exploring the intricate effects of COVID-19 on OD and its connection to cognitive deficits and mood disorders. The lack of objective olfactory measurements in some studies and potential validity issues in self-reports emphasize the need for cautious interpretation. Our research highlights the critical need for extensive studies with larger samples, proper controls, and objective measurements to deepen our understanding of COVID-19's long-term effects on neurological and olfactory dysfunctions.
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Affiliation(s)
- Ludovica Simonini
- Institute of Clinical Physiology, National Research Council (CNR), 54100 Massa, Italy; (I.F.); (C.V.)
| | - Francesca Frijia
- Bioengineering Unit, Fondazione Toscana G. Monasterio, 56124 Pisa, Italy;
| | - Lamia Ait Ali
- Institute of Clinical Physiology, National Research Council (CNR), 54100 Massa, Italy; (I.F.); (C.V.)
- Pediatric Cardiology and GUCH Unit, Fondazione “G. Monasterio” CNR-Regione Toscana, 54100 Massa, Italy
| | - Ilenia Foffa
- Institute of Clinical Physiology, National Research Council (CNR), 54100 Massa, Italy; (I.F.); (C.V.)
| | - Cecilia Vecoli
- Institute of Clinical Physiology, National Research Council (CNR), 54100 Massa, Italy; (I.F.); (C.V.)
| | - Carmelo De Gori
- Department of Radiology, Fondazione Monasterio/CNR, 56124 Pisa, Italy; (C.D.G.); (S.D.C.); (F.L.)
| | - Sara De Cori
- Department of Radiology, Fondazione Monasterio/CNR, 56124 Pisa, Italy; (C.D.G.); (S.D.C.); (F.L.)
| | - Monica Baroni
- Fondazione “G. Monasterio” CNR-Regione Toscana, 54100 Massa, Italy;
| | - Giovanni Donato Aquaro
- Academic Radiology Unit, Department of Surgical, Medical and Molecular Pathology and Critical Area, University of Pisa, 56124 Pisa, Italy;
| | - Carlo Maremmani
- Unit of Neurology, Ospedale Apuane, Azienda USL Toscana Nord Ovest, 54100 Massa, Italy;
| | - Francesco Lombardo
- Department of Radiology, Fondazione Monasterio/CNR, 56124 Pisa, Italy; (C.D.G.); (S.D.C.); (F.L.)
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Chen H, Ding Y, Huang L, Zhong W, Lin X, Zhang B, Zheng Y, Xu X, Lou M, Yuan C. The Association of Allergy-Related and Non-Allergy-Related Olfactory Impairment with Cognitive Function in Older Adults: Two Cross- Sectional Studies. Curr Alzheimer Res 2024; 20:811-820. [PMID: 38409711 DOI: 10.2174/0115672050284179240215052257] [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: 09/26/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Evidence on the association of Olfactory Impairment (OI) with age-related cognitive decline is inconclusive, and the potential influence of allergy remains unclear. OBJECTIVE We aimed to evaluate the cross-sectional associations of allergy-related and non-allergy- related OI to cognitive function. METHODS We included 2,499 participants from the Health and Retirement Study (HRS)-Harmonized Cognitive Assessment Protocol (HCAP) sub-study and 1,086 participants from the English Longitudinal Study of Ageing (ELSA)-HCAP. The Olfactory Function Field Exam (OFFE) using Sniffin' Stick odor pens was used to objectively assess olfactory function and an olfactory score <6/11 indicated OI. Mini-Mental Status Examination (MMSE) was used to assess global cognitive function and define cognitive impairment (<24/30). A neuropsychologic battery was used to assess five cognitive domains. RESULTS Compared to non-OI participants, individuals with OI had lower MMSE z-score [βHRS = -0.33, 95% Confidence Interval (CI): -0.41 to -0.24; βELSA = -0.31, -0.43 to -0.18] and higher prevalence of cognitive impairment (Prevalence Ratio (PR)HRS = 1.46, 1.06 to 2.01; PRELSA = 1.63, 1.26 to 2.11). The associations were stronger for non-allergy-related OI (βHRS = -0.36; βELSA = -0.34) than for allergy-related OI (βHRS = -0.26; βELSA = 0.13). Similar associations were observed with domain- specific cognitive function measures. CONCLUSION OI, particularly non-allergy-related OI, was related to poorer cognitive function in older adults. Although the current cross-sectional study is subject to several limitations, such as reverse causality and residual confounding, the findings will provide insights into the OI-cognition association and enlighten future attention to non-allergy-related OI for the prevention of potential cognitive impairment.
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Affiliation(s)
- Hui Chen
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yihong Ding
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liyan Huang
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wansi Zhong
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaojun Lin
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Baoyue Zhang
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Zheng
- Human Phenome Institute, School of Life Sciences, Fudan University, Shanghai, China
| | - Xin Xu
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Min Lou
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Changzheng Yuan
- School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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St Clair L, Grady A, Mahmut MK. Investigating the Link between Eating Attitudes, Taste and Odour Preferences and the Chemical Senses. BIOLOGY 2023; 12:1415. [PMID: 37998014 PMCID: PMC10669679 DOI: 10.3390/biology12111415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES To examine if higher degrees of pathological eating attitudes in a non-clinical sample are associated with odour and taste perception and preferences based on psychophysical ratings. PARTICIPANTS AND METHODS A total of 80 female university students completed the eating attitudes test (EAT-26), followed by four chemosensory measures including olfactory and gustatory perception plus perceptual ratings and preferences for food odours and tastes. RESULTS There were no significant correlations between EAT-26 scores and measures of olfactory and gustatory perception. However, a significant interaction effect indicated higher degrees of pathological eating attitudes may be associated with differential sensitivity to sweet and fatty food odours compared to those with lower levels of pathological eating attitudes. CONCLUSIONS This was the first study to examine pathological eating attitudes using food stimuli with a non-clinical sample. The results remain preliminary until replication. However, the findings highlight the need for development of measures of disordered eating attitudes and behaviours that go beyond caloric restriction.
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Affiliation(s)
| | | | - Mehmet K. Mahmut
- Food, Flavour and Fragrance Lab, School of Psychological Sciences, Macquarie University, Sydney, NSW 2109, Australia
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Mattos JL, Hasan S, Schlosser RJ, Payne SC, Soler ZM. The association of gustatory dysfunction, olfactory dysfunction, and cognition in older adults. Int Forum Allergy Rhinol 2023; 13:1577-1583. [PMID: 36562185 PMCID: PMC10412899 DOI: 10.1002/alr.23126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/18/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND The association of gustatory dysfunction (GD) with quality of life (QOL) and cognition in older adults is understudied. Our objective was to study the prevalence of GD in the community and explore impacts and associated factors. METHODS A prospective, multi-institutional, pre-corona virus disease (COVID) cohort of adults aged 50 years and older had smell and taste testing using "Sniffin' Sticks" (TDI) and "Taste Strips." The impact of GD on mood, QOL, and social interaction was assessed through visual analog scales. Subjects completed the Questionnaire of Olfactory Disorders, Patient Health Questionnaire 9, Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment, and the DeJong scale of loneliness. RESULTS A total of 48 patients, average age of 54.7 years, were enrolled. Thirty-two percent experienced GD on taste strips, and 62% experienced olfactory dysfunction (OD) on TDI. Almost 30% (29.5%) had both GD and OD. GD and OD correlated with worsened cognitive function on MMSE (r = 0.392 and 0.05, p = 0.018 and 0.003). Subjects with both GD and OD had worse MMSE than either alone (p = 0.003). Dry mouth and difficult chewing correlated with GD (r = -0.37 and -0.31, p = 0.10 and 0.37). Self-reported GD and OD were correlated (r = 0.46, p = 0.001), as were psychophysical GD and OD (r = 0.394, p = 0.008). GD did not correlate with other metrics. CONCLUSION Thirty-two percent of subjects experienced GD on psychophysical testing, yet most are unaware without impacts on daily life. However, GD correlates with worsened cognitive function. Taste testing may play a role in screening of neurocognitive decline, and multisensory dysfunction may indicate of worsened cognitive states.
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Affiliation(s)
- Jose L. Mattos
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology – Head and Neck Surgery, University of Virginia, Charlottesville, VA
- University of Virginia School of Medicine, Charlottesville, VA
| | - Shahzeb Hasan
- University of Virginia School of Medicine, Charlottesville, VA
| | - Rodney J. Schlosser
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology – Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA
- Department of Surgery, Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Spencer C. Payne
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology – Head and Neck Surgery, University of Virginia, Charlottesville, VA
- University of Virginia School of Medicine, Charlottesville, VA
| | - Zachary M. Soler
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology – Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA
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Chen PP, Wei XY, Tao L, Xin X, Xiao ST, He N. Cerebral abnormalities in HIV-infected individuals with neurocognitive impairment revealed by fMRI. Sci Rep 2023; 13:10331. [PMID: 37365237 DOI: 10.1038/s41598-023-37493-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023] Open
Abstract
Although the combination antiretroviral treatment (cART) has considerably lowered the risk of HIV associated dementia (HAD), the incidence of neurocognitive impairments (NCI) has not decreased likely due to the insidious and slow progressive nature of HIV infection. Recent studies showed that the resting-state functional magnetic resonance imaging (rs-fMRI) is a prominent technique in helping the non-invasive analysis of neucognitive impairment. Our study is to explore the neuroimaging characteristics among people living with HIV (PLWH) with or without NCI in terms of cerebral regional and neural network by rs-fMRI, based on the hypothesis that HIV patients with and without NCI have independent brain imaging characteristics. 33 PLWH with NCI and 33 PLWH without NCI, recruited from the Cohort of HIV-infected associated Chronic Diseases and Health Outcomes, Shanghai, China (CHCDO) which was established in 2018, were categorized into the HIV-NCI and HIV-control groups, respectively, based on Mini-Mental State Examination (MMSE) results. The two groups were matched in terms of sex, education and age. Resting-state fMRI data were collected from all participants to analyze the fraction amplitude of low-frequency fluctuation (fALFF) and functional connectivity (FC) to assess regional and neural network alterations in the brain. Correlations between fALFF/FC values in specific brain regions and clinical characteristics were also examined. The results showed increased fALFF values in the bilateral calcarine gyrus, bilateral superior occipital gyrus, left middle occipital gyrus, and left cuneus in the HIV-NCI group compared to the HIV-control group. Additionally, increased FC values were observed between the right superior occipital gyrus and right olfactory cortex, bilateral gyrus rectus, and right orbital part of the middle frontal gyrus in the HIV-NCI group. Conversely, decreased FC values were found between the left hippocampus and bilateral medial prefrontal gyrus, as well as bilateral superior frontal gyrus. The study concluded that abnormal spontaneous activity in PLWH with NCI primarily occurred in the occipital cortex, while defects in brain networks were mostly associated with the prefrontal cortex. The observed changes in fALFF and FC in specific brain regions provide visual evidence to enhance our understanding of the central mechanisms underlying the development of cognitive impairment in HIV patients.
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Affiliation(s)
- Pan-Pan Chen
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 2000323, China
- Pudong New Area Center for Disease Control and Prevention, Shanghai, 201203, China
- Pudong Institute of Preventive Medicine, Fudan University, Shanghai, China
| | - Xiang-Yu Wei
- Institute of Acupuncture & Anesthesia, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Department of Acupuncture & Moxibustion, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Larissa Tao
- Department of Acupuncture & Moxibustion, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- International Education College, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xin Xin
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 2000323, China
- Pudong New Area Center for Disease Control and Prevention, Shanghai, 201203, China
- Pudong Institute of Preventive Medicine, Fudan University, Shanghai, China
| | - Shao-Tan Xiao
- Pudong New Area Center for Disease Control and Prevention, Shanghai, 201203, China
- Pudong Institute of Preventive Medicine, Fudan University, Shanghai, China
| | - Na He
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 2000323, China.
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Park SY, Kim KS, Min HJ. Gustatory dysfunction perceptions versus objective gustatory dysfunction among older adults. BMC Geriatr 2023; 23:56. [PMID: 36721099 PMCID: PMC9887822 DOI: 10.1186/s12877-023-03781-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/29/2023] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Research on gustatory dysfunction among older adults has been scarce relative to research on olfactory dysfunction, and the relationship between subjective and objective gustatory dysfunction has not been studied in detail. We aimed to evaluate whether subjective recognition of gustatory dysfunction correlates with objective diagnosis of gustatory dysfunction among older adults. METHODS In this retrospective, cross-sectional study, we reviewed the medical records of 138 patients of ages ≥ 60 years for whom data were available on self-reported and objectively measured gustatory and olfactory function from January 2018 through April 2021 at a specialized smell/taste center of a single institution. We reviewed self-reported and measured outcomes of gustatory and olfactory function using patient data including clinical characteristics, including age, sex, smoking history, and medical history. RESULTS We found that the subjective recognition of gustatory dysfunction does not correlate with the objective diagnosis of gustatory dysfunction based on the measured results of gustatory function tests. Subjective gustatory dysfunction, however, was correlated with subjective olfactory dysfunction. Among clinical and demographic characteristics, age and sex were significantly associated with measured gustatory function outcomes. CONCLUSION We suggest that subjective gustatory dysfunction underestimates objective dysfunction and recommend that older men with diminished olfactory function undergo gustatory function testing regardless of their self-reported gustatory function status.
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Affiliation(s)
- Seung Yong Park
- grid.254224.70000 0001 0789 9563Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, 102, Heukseok-ro, Dongjak-gu, Seoul, 156-755 South Korea
| | - Kyung Soo Kim
- grid.254224.70000 0001 0789 9563Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, 102, Heukseok-ro, Dongjak-gu, Seoul, 156-755 South Korea
| | - Hyun Jin Min
- grid.254224.70000 0001 0789 9563Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, 102, Heukseok-ro, Dongjak-gu, Seoul, 156-755 South Korea
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Wang MC, Chiou JM, Chen YC, Chen JH. Association Between Olfactory Dysfunction and Cognitive Impairment in Dementia-Free Older Adults: A Prospective Cohort Study in Taiwan. J Alzheimers Dis 2023; 96:1477-1488. [PMID: 37980657 PMCID: PMC10741368 DOI: 10.3233/jad-230319] [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] [Accepted: 09/27/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Previous studies assessing olfactory function and cognition have mostly been cross-sectional, and few have investigated the Asian geriatric population. OBJECTIVE To examine the relationships of olfaction with global or domain-specific cognitive function in Taiwanese community-dwelling older adults. METHODS This cohort study (2015-2019) is part of the Taiwan Initiative for Geriatric Epidemiological Research. The Taiwanese version of the Montreal Cognitive Assessment (MoCA-T) and a battery of neuropsychological tests were assessed at baseline and at a two-year follow-up. The cross-culture modified Sniffin' Sticks Identification Test (SSIT) was utilized to measure olfactory function. Generalized linear mixed models were used to examine the association of olfaction with cognitive performance over two years. RESULTS Data were collected from 376 participants (55.1% women), with a mean age of 75.6 years. A one-point decrease in the SSIT score (worsening of olfaction) was associated with worse global cognition (MoCA-T: βˆ= -0.13), memory (βˆ= -0.08 to -0.06), and verbal fluency (βˆ= -0.07). Compared with an SSIT score ≥ 11 (normosmia), an SSIT score < 8 (anosmia) was associated with worse global cognition (MoCA-T: βˆ= -0.99), memory (βˆ= -0.48 to -0.42), executive function (Trail Making Test A: βˆ= -0.36), attention (digit span backward: βˆ= -0.34), and verbal fluency (βˆ= -0.45). After stratified analyses, the associations remained in older adults ≥ 75 years, males, and non-carriers of apolipoprotein E ɛ4 in terms of global cognition, memory, and verbal fluency. CONCLUSIONS Odor identification deficits were associated with poor global or domain-specific cognitive function in a four-year cohort of community-dwelling older adults. Cognitive assessments should be conducted in dementia-free elderly individuals with impaired odor identification.
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Affiliation(s)
- Mu-Cyun Wang
- Department of Geriatrics and Gerontology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu City, Taiwan
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taipei, Taiwan
| | - Jeng-Min Chiou
- Institute of Statistics and Data Science, National Taiwan University, Taipei, Taiwan
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Yen-Ching Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Jen-Hau Chen
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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11
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Desai DD, Yu SE, Salvatore B, Goldberg Z, Bowers EMR, Moore JA, Phan B, Lee SE. Olfactory and neurological outcomes of SARS-CoV-2 from acute infection to recovery. FRONTIERS IN ALLERGY 2022; 3:1019274. [DOI: 10.3389/falgy.2022.1019274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/07/2022] [Indexed: 11/07/2022] Open
Abstract
Educational objectiveTo investigate the impact of SARS-CoV-2 on sinonasal quality of life, olfaction, and cognition at different stages of viral infection and evaluate the association between olfaction and cognition in this population cohort.ObjectivesWhile olfactory dysfunction (OD) is a frequently reported symptom of COVID-19 (98% prevalence), neurocognitive symptoms are becoming more apparent as patients recover from infection. This study aims to address how different stages of infection [active infection (positive PCR test, symptomatic) vs. recovered (7 days post-symptoms)] compared to healthy control patients influence sinonasal quality of life, olfactory function, and cognition.Study designProspective, longitudinal, case-control.MethodsParticipants completed the SNOT-22, University of Pennsylvania Smell Identification Test (UPSIT) and validated cognitive examinations to assess degree of smell loss and neurocognitive function at baseline and at 1 and 3 months for the active group and 3 months for the recovered group. Self-reported olfactory function and overall health metrics were also collected.ResultsThe recovered group had the lowest average UPSIT score of 27.6 compared to 32.7 (active) and 32.6 (healthy control). 80% (n = 24) of the recovered patients and 56.3% (n = 9) of the active patients suffered from smell loss. In follow-up, the active group showed improvement in UPSIT scores while the recovered group scores worsened. In terms of neurocognitive performance, recovered patients had lower processing speed despite an improving UPSIT score.ConclusionSARS-CoV-2 infection was found to impact olfactory function in a delayed fashion with significant impact despite recovery from active infection. Although olfactory function improved, decrements in cognitive processing speed were detected in our cohort.
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12
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Mantovani E, Tamburin S. D2/D3 Receptor Agonism: Paving the Way for a New Therapeutic Target for Taste Disorders in Parkinson's Disease and Other Conditions? Int J Neuropsychopharmacol 2022; 25:933-935. [PMID: 35908177 PMCID: PMC9670739 DOI: 10.1093/ijnp/pyac042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Chemosensory (i.e., olfaction and taste) dysfunction is common in neurodegenerative (e.g., Parkinson's disease, Alzheimer's disease, and dementia), psychiatric (e.g., depression, bipolar disorders, other conditions), and postinfectious (i.e., long COVID) diseases and in the elderly. Despite its impact on patients' quality of life, no established treatment for taste disorders exists so far. A recent report on the effect of pramipexole, a D2/D3 agonist, on taste performance in healthy participants provides support for a new potential therapeutic target for taste dysfunction to be tested in future randomized, placebo-controlled, clinical trials across several populations reporting gustatory symptoms.
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Affiliation(s)
- Elisa Mantovani
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Italy
| | - Stefano Tamburin
- Correspondence: Stefano Tamburin, MD, PhD, Section of Neurology, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Piazzale Scuro 10, I-37134 Verona, Italy ( )
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13
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Challakere Ramaswamy VM, Schofield PW. Olfaction and Executive Cognitive Performance: A Systematic Review. Front Psychol 2022; 13:871391. [PMID: 35615205 PMCID: PMC9125097 DOI: 10.3389/fpsyg.2022.871391] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/14/2022] [Indexed: 11/30/2022] Open
Abstract
Objective tests of olfaction are widely available to aid in the assessment of olfaction. Their clearest role is in the characterization of olfactory changes, either reported by or suspected in a patient. There is a rapidly growing literature concerned with the association of olfactory changes with certain neuropsychiatric conditions and the use of olfactory testing to supplement conventional assessments in clinical and research practice is evolving. Neural pathways important for olfactory processing overlap extensively with pathways important for cognitive functioning, and especially those important for executive functioning, many of which are concentrated in the frontal lobes. Previous work has identified associations between performance on certain olfactory tests (most frequently olfactory identification) and executive functioning and behavioral measures (e.g. of impulsivity). More recently, similar associations have also been identified in non-clinical samples, raising new questions as to the utility of olfactory test scores as proxy measures for non-olfactory phenomena. In this systemic review, we sought to identify studies, both clinical and non-clinical, that investigated the associations of olfaction with performance on tasks sensitive to frontal lobe functioning. Our search criteria led to the identification of 70 studies published in English. We examined in detail and tabulated the data from these studies, highlighted each study's key findings, and critically evaluated these studies. We use the results of this review to reflect on some of the current and future challenges concerning the use of olfactory testing in clinical neuropsychiatric practice and research and speculate on the potential benefits of administering phonemic fluency in combination with olfactory testing to enhance its predictive value.
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Affiliation(s)
- Vasudeva Murthy Challakere Ramaswamy
- School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
- *Correspondence: Vasudeva Murthy Challakere Ramaswamy
| | - Peter William Schofield
- School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
- Neuropsychiatry Service, Hunter New England Mental Health, New Lambton, NSW, Australia
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14
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Chen Z, Hu C, Zhang Y, Xie H, Wei Y. Gustatory event-related potential alterations in olfactory dysfunction patients. Neurol Sci 2022; 43:2899-2908. [PMID: 35106693 PMCID: PMC8807141 DOI: 10.1007/s10072-022-05876-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/01/2022] [Indexed: 11/25/2022]
Abstract
The phenomenon that longstanding impaired olfactory function is associated with the decreased gustatory function was described in present studies, which was seems attributed to mutual chemosensory interactions. And the interaction between olfaction and gustation still needs more research to figure out. The objective of the study was to investigate how the taste was influenced by olfactory impairment in the central pathway. We tested 33 subjects with normal (n = 19) or impaired (n = 14) olfactory function for their gustatory event-related potentials (gERPs). Validated tests were used for olfactory and gustatory testing (Sniffin’ Sticks, gERPs, and three-drop test). This study reported an objective gustatory function decline in olfactory dysfunction participants. However, it also reported the increased gustatory event-related potentials of olfactory dysfunction participants, especially at the frontal electrode (FZ) and electrode 16 (E16), and the reduced latency of P2 peak of them at electrode 21 (E21), while no obvious difference was observed at the centro-parietal electrode (PZ). Inferior insula might be the main response area for the increase in gERPs, and this increase averaged amplitude of the P2 component may attribute to compensation of the secondary gustatory response that occurred in the gustatory processing of olfactory-impaired patients.
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Affiliation(s)
- Zirong Chen
- Beijing Institute of Heart, Lung and Blood Vessel Diseases, Anzhen Road, Beijing, Chaoyang District, China
- Department of Otolaryngology, Smell and Taste Center, Beijing Anzhen Hospital, Capital Medical University, Anzhen Road 2, Beijing, Chaoyang District, 100010, China
| | - Chunhua Hu
- Department of Otolaryngology, Smell and Taste Center, Beijing Anzhen Hospital, Capital Medical University, Anzhen Road 2, Beijing, Chaoyang District, 100010, China
| | - Yaru Zhang
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, China National Technology Institute On Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Hongbo Xie
- Beijing Institute of Heart, Lung and Blood Vessel Diseases, Anzhen Road, Beijing, Chaoyang District, China
- Department of Otolaryngology, Smell and Taste Center, Beijing Anzhen Hospital, Capital Medical University, Anzhen Road 2, Beijing, Chaoyang District, 100010, China
| | - Yongxiang Wei
- Department of Otorhinolaryngology-Head and Neck Surgery, Capital Institute of Pediatrics, Yabao Road 2, Chaoyang District, 100029, Beijing, China.
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15
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Ojha P, Dixit A. Olfactory training for Olfactory dysfunction in COVID-19: A promising mitigation amidst looming neurocognitive sequelae of the pandemic. Clin Exp Pharmacol Physiol 2022; 49:462-473. [PMID: 35090056 DOI: 10.1111/1440-1681.13626] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/15/2021] [Accepted: 12/02/2021] [Indexed: 12/01/2022]
Abstract
Olfactory dysfunction (OD) is a recognized symptom of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is independently associated with neurodegenerative disorders. Moreover, the central nervous system manifestations in patients infected with the coronavirus -2019 (COVID-19) have demonstrated cognitive decline and neuropsychiatric manifestations. Hence, OD in COVID -19 necessitates perusal of its' mechanism and available treatment options to avert possible development of neurocognitive sequelae of the pandemic. The article presents a literature review organized from the published information about olfactory training (OT) for OD during COVID-19. The methodology comprised retrieval of available literature from database searches and subsequent scrutinization of relevant information. Inferentially, Injury to the sustentacular cells, possessing angiotensin-converting enzyme 2 (ACE-2) receptors, is an important mechanism causing OD in COVID-19. OD may be prolonged in severe cases of anosmia predisposing to neurodegenerative and cognitive impairment in COVID-19 infection. OT demonstrates an effective treatment for OD based on human and animal-derived evidence through recent studies. It curtails the progression of OD, besides inducing neural rearrangement and changes in functional connectivity in patients receiving OT. Additionally, contemporary reports support that the administration of OT for COVID-induced anosmia is effective and encompasses no significant adverse effects. The present review highlights the prominence of olfactory training as a recommended intervention for OD in COVID-19. This review can guide the clinicians in curbing neurological repercussions of COVID besides enhancing cognitive rehabilitation through olfactory training.
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Affiliation(s)
- Pooja Ojha
- Department of Physiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Abhinav Dixit
- Department of Physiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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16
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Hura N, Bernstein IA, Mady LJ, Agrawal Y, Lane AP, Rowan NR. Otolaryngic sensory loss as a measure of frailty among older US adults. Int Forum Allergy Rhinol 2021; 12:771-779. [PMID: 34878232 DOI: 10.1002/alr.22918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/08/2021] [Accepted: 10/14/2021] [Indexed: 01/11/2023]
Abstract
BACKGROUND Frailty is a syndrome characterized by reduced physiologic reserve and increased vulnerability to poor health outcomes. Disruption of sensorineural function appears to serve as a novel biomarker of frailty. Using population-level data, we sought to characterize the association between otolaryngic sensory dysfunction and frailty. METHODS A cross-sectional analysis of the 2011-2012 US National Health and Nutrition Examination Survey was performed on adults ≥40 years of age (n = 2138). Participants were grouped by subjective gustatory dysfunction (sGD), olfactory dysfunction (sOD), hearing loss (sHL), and measured hearing loss (mHL) with pure tone averages (PTAs). Frailty was operationalized using a continuous 36-item frailty index (FI) scored from 0 to 1, stratified in 4 categories ("non-frail," "vulnerable," "frail," or "most frail"). RESULTS All sensory loss groups had significantly higher FI scores than those without sensory loss (sGD = 0.15; sOD = 0.14; sHL = 0.15; low-frequency mHL = 0.16; high-frequency mHL = 0.14 vs control = 0.11; p < 0.007 for all). "Vulnerable" individuals had increased odds of sOD (adjusted odds ratio [aOR], 1.45; 95% confidence interval [CI], 1.05-2.00), whereas "frail" individuals had increased odds of sOD (aOR, 1.85; 95% CI, 1.26-2.71) and low-frequency mHL (aOR, 4.01; 95% CI, 1.27-12.63). The "most frail" individuals had increased odds of sHL (aOR, 11.72; 95% CI, 2.88-47.66) and high-frequency mHL (aOR 5.10; 95% CI, 1.72-15.12). PTAs were linearly associated with FI (low: β = 10.15; 95% CI, 1.78-18.51; high: β = 19.85; 95% CI, 5.19-34.53). CONCLUSION Otolaryngic sensory loss is associated with increased frailty. Independent association of frailty with measures of olfaction and hearing suggests that olfactory and hearing assessments may help identify at-risk individuals with modifiable risk factors.
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Affiliation(s)
- Nanki Hura
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Isaac A Bernstein
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA
| | - Leila J Mady
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
- Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA
| | - Yuri Agrawal
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Andrew P Lane
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Nicholas R Rowan
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
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17
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Abstract
Gustatory dysfunctions are more frequent than other chemosensory dysfunctions in aging people. Gustatory event-related potentials (ERPs) has been suggested as a reliable and effective approach for assessing gustatory functions in young and middle subjects, but has rarely been investigated in aging people, leaving influencing factors of ERPs in that population not completely understood. In this study, we analyzed gustatory ERPs results of aging participants and characterized potential impacting factors, including age, sex, BMI, drinking, smoking, hypertension, diabetes, cognition and psychophysical test scores of gustation and olfaction. Our results revealed three components (P1, N1 and P2) in gustatory ERPs upon salty stimulation. Significant differences between responses collected from different recording electrodes were observed: minimum latencies and maximum amplitudes of P1 were detected at frontal electrode, and maximum amplitudes of N1 and P2 were detected at central and centro-parietal electrodes, respectively. Major cortical sources of components P1, N1 and P2 were located at bilateral insula, frontal operculum, and orbitofrontal cortex. Diabetes was positively associated with latencies of P1. Sex was positively associated with amplitudes of P1, N1 and P2. Hypertension was negatively associated with amplitudes of P1 and P2. In conclusion, gustatory ERPs in aging people exhibited a specific topographical distribution, represented by sex-related differences and negative impacts of diabetes and hypertension.
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18
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Xu L, Liu J, Wroblewski KE, McClintock MK, Pinto JM. Odor Sensitivity Versus Odor Identification in Older US Adults: Associations With Cognition, Age, Gender, and Race. Chem Senses 2021; 45:321-330. [PMID: 32406505 DOI: 10.1093/chemse/bjaa018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The ability to identify odors predicts morbidity, mortality, and quality of life. It varies by age, gender, and race and is used in the vast majority of survey and clinical literature. However, odor identification relies heavily on cognition. Other facets of olfaction, such as odor sensitivity, have a smaller cognitive component. Whether odor sensitivity also varies by these factors has not been definitively answered. We analyzed data from the National Social Life, Health, and Aging Project, a nationally representative study of older US adults (n = 2081). Odor identification was measured using 5 validated odors presented with Sniffin' Stick pens as was odor sensitivity in a 6-dilution n-butanol constant stimuli detection test. Multivariate ordinal logistic regression modeled relationships between olfaction and age, gender, race, cognition, education, socioeconomic status, social network characteristics, and physical and mental health. Odor sensitivity was worse in older adults (P < 0.01), without gender (P = 0.56) or race (P = 0.79) differences. Odor identification was also worse in older adults, particularly men (both P ≤ 0.01), without differences by race. Decreased cognitive function was associated with worse odor identification (P ≤ 0.01) but this relationship was weaker for odor sensitivity (P = 0.02) in analyses that adjusted for other covariates. Odor sensitivity was less strongly correlated with cognitive ability than odor identification, confirming that it may be a more specific measure of peripheral olfactory processing. Investigators interested in associations between olfaction and health should consider both odor sensitivity and identification when attempting to understand underlying neurosensory mechanisms.
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Affiliation(s)
- Lucy Xu
- Pritzker School of Medicine, The University of Chicago, Chicago, USA
| | - Jia Liu
- Beijing An Zhen Hospital, Capital Medical University, An Zhen Hospital, Beijing, China
| | | | - Martha K McClintock
- Department of Comparative Human Development, The University of Chicago, Chicago, USA.,Center on Demography and Aging, The University of Chicago, Chicago, USA.,Institute for Mind and Biology, The University of Chicago, Institute for Mind and Biology, Chicago, USA
| | - Jayant M Pinto
- Section of Otolaryngology, Head and Neck Surgery, The University of Chicago, Chicago, USA.,Institute for Population and Precision Health, The University of Chicago, Chicago, USA
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19
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Zhang Z, Rowan NR, Pinto JM, London NR, Lane AP, Biswal S, Ramanathan M. Exposure to Particulate Matter Air Pollution and Anosmia. JAMA Netw Open 2021; 4:e2111606. [PMID: 34042992 PMCID: PMC8160589 DOI: 10.1001/jamanetworkopen.2021.11606] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
IMPORTANCE Anosmia, the loss of the sense of smell, has profound implications for patient safety, well-being, and quality of life, and it is a predictor of patient frailty and mortality. Exposure to air pollution may be an olfactory insult that contributes to the development of anosmia. OBJECTIVE To investigate the association between long-term exposure to particulate matter (PM) with an aerodynamic diameter of no more than 2.5 μm (PM2.5) with anosmia. DESIGN, SETTING, AND PARTICIPANTS This case-control study examined individuals who presented from January 1, 2013, through December 31, 2016, at an academic medical center in Baltimore, Maryland. Case participants were diagnosed with anosmia by board-certified otolaryngologists. Control participants were selected using the nearest neighbor matching strategy for age, sex, race/ethnicity, and date of diagnosis. Data analysis was conducted from September 2020 to March 2021. EXPOSURES Ambient PM2.5 levels. MAIN OUTCOMES AND MEASURES Novel method to quantify ambient PM2.5 exposure levels in patients diagnosed with anosmia compared with matched control participants. RESULTS A total of 2690 patients were identified with a mean (SD) age of 55.3 (16.6) years. The case group included 538 patients with anosmia (20%), and the control group included 2152 matched control participants (80%). Most of the individuals in the case and control groups were women, White patients, had overweight (BMI 25 to <30), and did not smoke (women: 339 [63.0%] and 1355 [63.0%]; White patients: 318 [59.1%] and 1343 [62.4%]; had overweight: 179 [33.3%] and 653 [30.3%]; and did not smoke: 328 [61.0%] and 1248 [58.0%]). Mean (SD) exposure to PM2.5 was significantly higher in patients with anosmia compared with healthy control participants at 12-, 24-, 36-, 60-month time points: 10.2 (1.6) μg/m3 vs 9.9 (1.9) μg/m3; 10.5 (1.7) μg/m3 vs 10.2 (1.9) μg/m3; 10.8 (1.8) μg/m3 vs 10.4 (2.0) μg/m3; and 11.0 (1.8) μg/m3 vs 10.7 (2.1) μg/m3, respectively. There was an association between elevated PM2.5 exposure level and odds of anosmia in multivariate analyses that adjusted for age, sex, race/ethnicity, body mass index, alcohol or tobacco use, and medical comorbidities (12 mo: odds ratio [OR], 1.73; 95% CI, 1.28-2.33; 24 mo: OR, 1.72; 95% CI, 1.30-2.29; 36 mo: OR, 1.69; 95% CI, 1.30-2.19; and 60 mo: OR, 1.59; 95% CI, 1.22-2.08). The association between long-term exposure to PM2.5 and the odds of developing anosmia was nonlinear, as indicated by spline analysis. For example, for 12 months of exposure to PM2.5, the odds of developing anosmia at 6.0 µg/m3 was OR 0.79 (95% CI, 0.64-0.97); at 10.0 µg/m3, OR 1.42 (95% CI, 1.10-1.82); at 15.0 µg/m3, OR 2.03 (95% CI, 1.15-3.58). CONCLUSIONS AND RELEVANCE In this study, long-term airborne exposure to PM2.5 was associated with anosmia. Ambient PM2.5 represents a potentially ubiquitous and modifiable risk factor for the loss of sense of smell.
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Affiliation(s)
- Zhenyu Zhang
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Global Health, The Peking University School of Public Health, Beijing, China
| | - Nicholas R. Rowan
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jayant M. Pinto
- Section of Otolaryngology–Head and Neck Surgery, Department of Surgery, The University of Chicago, Illinois
| | - Nyall R. London
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Andrew P. Lane
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Shyam Biswal
- Department of Environmental Health Sciences, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Murugappan Ramanathan
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Pirker-Kees A, Platho-Elwischger K, Hafner S, Redlich K, Baumgartner C. Hyposmia Is Associated with Reduced Cognitive Function in COVID-19: First Preliminary Results. Dement Geriatr Cogn Disord 2021; 50:68-73. [PMID: 33853062 PMCID: PMC8089429 DOI: 10.1159/000515575] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/22/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Hyposmia is frequently reported as an initial symptom in coronavirus disease 2019 (COVID-19). OBJECTIVE As hyposmia accompanies cognitive impairment in several neurological disorders, we aimed to study whether hyposmia represents a clinical biomarker for both neurological involvement and cognitive impairment in mild CO-VID-19. We aimed to study whether olfactory dysfunction (OD) represents a clinical biomarker for both neurological involvement and cognitive impairment in mild COVID-19. METHODS Formal olfactory testing using the Sniffin'Sticks® Screening test, neuropsychological assessment using the Montreal Cognitive Assessment (MoCA), and detailed neurological examination were performed in 7 COVID-19 patients with mild disease course and no history of olfactory or cognitive impairment, and 7 controls matched for age, sex, and education. Controls were initially admitted to a dedicated COVID-19 screening ward but tested negative by real-time PCR. RESULTS The number of correctly identified odors was significantly lower in COVID-19 than in controls (6 ± 3, vs. 10 ± 1 p = 0.028, r = 0.58). Total MoCA score was significantly lower in COVID-19 patients than in controls (20 ± 5 vs. 26 ± 3, p = 0.042, r = 0.54). Cognitive performance indicated by MoCA was associated with number of correctly identified odors in COVID-19 patients and controls (COVID-19: p = 0.018, 95% CI = 9-19; controls: p = 0.18, r = 0.63, 95% CI = 13-18.5 r = 0.64). DISCUSSION/CONCLUSION OD is associated with cognitive impairment in controls and mild COVID-19. OD may represent a potentially useful clinical biomarker for subtle and even subclinical neurological involvement in severe acute respiratory distress syndrome coronavirus-2 infection.
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Affiliation(s)
- Agnes Pirker-Kees
- Department of Neurology, Clinic Hietzing, Vienna, Austria,Karl Landsteiner Institute for Clinical Epilepsy Research and Cognitive Neurology, Vienna, Austria,* Agnes Pirker-Kees,
| | | | | | - Kurt Redlich
- Department of Rheumatology, Klinik Hietzing, Vienna, Austria
| | - Christoph Baumgartner
- Department of Neurology, Clinic Hietzing, Vienna, Austria,Karl Landsteiner Institute for Clinical Epilepsy Research and Cognitive Neurology, Vienna, Austria,Medical Faculty, Sigmund Freud University, Vienna, Austria
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21
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Park H, Kim H, Kim S, Cha H. The Association between Olfactory Function and Cognitive Impairment in Older Persons with Cognitive Impairments: A Cross-Sectional Study. Healthcare (Basel) 2021; 9:healthcare9040399. [PMID: 33916102 PMCID: PMC8065920 DOI: 10.3390/healthcare9040399] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/31/2022] Open
Abstract
Olfactory function is an emerging topic of research in the fields of cognitive impairment and neurodegenerative diseases. We aimed to confirm the association between olfactory function and cognitive impairment by assessing the olfactory function of older persons with cognitive impairment and identify whether olfactory function is associated with cognitive impairment. For this study, we recruited 117 older people aged ≥65 years with cognitive impairments from a public hospital in Korea. We used the Korean version of the expanded clinical dementia rating scale to evaluate participants’ cognitive impairments, and the University of Pennsylvania’s smell identification test to assess their olfactory function. Our results indicate a significant negative correlation between olfactory function and all domains of cognitive impairment (memory, orientation, judgement and problem-solving, community affairs, home and hobbies, and personal care). In addition, olfactory function was a factor associated with cognitive impairment in older persons. Therefore, we expect that our results to provide useful data for the development of interventions using olfactory stimulation to improve cognitive function in older persons with cognitive impairment.
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Affiliation(s)
- Hyangjeong Park
- Department of Nursing, Cheonan Medical Center, Cheonan 31071, Chungcheongnam-do, Korea;
| | - Heejeong Kim
- Department of Nursing, College of Health & Health Care, Namseoul University, Cheonan 31020, Chungcheongnam-do, Korea; (H.K.); (S.K.)
| | - Sisook Kim
- Department of Nursing, College of Health & Health Care, Namseoul University, Cheonan 31020, Chungcheongnam-do, Korea; (H.K.); (S.K.)
| | - Hyegyeong Cha
- Department of Nursing, College of Health & Health Care, Namseoul University, Cheonan 31020, Chungcheongnam-do, Korea; (H.K.); (S.K.)
- Correspondence: ; Tel.: +82-10-4322-7941
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Murai T, Sukoff Rizzo SJ. The Importance of Complementary Collaboration of Researchers, Veterinarians, and Husbandry Staff in the Successful Training of Marmoset Behavioral Assays. ILAR J 2021; 61:230-247. [PMID: 33501501 DOI: 10.1093/ilar/ilaa024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 08/31/2020] [Accepted: 09/09/2020] [Indexed: 12/30/2022] Open
Abstract
Interest in marmosets as research models has seen exponential growth over the last decade, especially given that the research community is eager to improve on gaps with historical animal models for behavioral and cognitive disorders. The spectrum of human disease traits that present naturally in marmosets, as well as the range of analogous human behaviors that can be assessed in marmosets, makes them ideally suited as translational models for behavioral and cognitive disorders. Regardless of the specific research aims of any project, without close collaboration between researchers, veterinarians, and animal care staff, it would be impossible to meet these goals. Behavior is inherently variable, as are marmosets that are genetically and phenotypically diverse. Thus, to ensure rigor, reliability, and reproducibility in results, it is important that in the research environment, the animal's daily husbandry and veterinary needs are being met and align with the research goals while keeping the welfare of the animal the most critical and highest priority. Much of the information described herein provides details on key components for successful behavioral testing, based on a compendium of methods from peer-reviewed publications and our own experiences. Specific areas highlighted include habituation procedures, selection of appropriate rewards, optimization of testing environments, and ways to integrate regular veterinary and husbandry procedures into the research program with minimal disruptions to the behavioral testing plan. This article aims to provide a broad foundation for researchers new to establishing behavioral and cognitive testing paradigms in marmosets and especially for the veterinary and husbandry colleagues who are indispensable collaborators of these research projects.
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Affiliation(s)
- Takeshi Murai
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Criado C, Muñoz-González C, Pozo-Bayón MÁ. Differences in salivary flow and composition between age groups are correlated to dynamic retronasal aroma perception during wine consumption. Food Qual Prefer 2021. [DOI: 10.1016/j.foodqual.2020.104046] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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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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25
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Bernstein IA, Roxbury CR, Lin SY, Rowan NR. The association of frailty with olfactory and gustatory dysfunction in older adults: a nationally representative sample. Int Forum Allergy Rhinol 2020; 11:866-876. [PMID: 33131203 DOI: 10.1002/alr.22718] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/19/2020] [Accepted: 10/05/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Olfaction and gustation are associated with age-related decline. Deficits in these chemosenses have been associated with significant comorbidities. Meanwhile, frailty, defined as a reduced physiological reserve, is well correlated with mortality and worse health outcomes. We sought to analyze a nationally representative patient population to determine the association between chemosensory dysfunction and frailty. METHODS Cross-sectional analysis of U.S. National Health and Nutrition Examination Survey (NHANES) 2013-2014 was performed, using multivariate logistic regression to examine the association between chemosensory dysfunction and frailty in adults aged ≥40 years (n = 3547). Self-reported olfactory dysfunction (sOD) and gustatory dysfunction (sGD), and measured olfactory dysfunction (mOD) and gustatory dysfunction (mGD) were assessed for all participants. Frailty was operationalized using a 39-item frailty index (FI) and stratified into 4 groups using validated cutoffs. RESULTS Participants with sOD and mOD had significantly higher mean FI scores (sOD: 0.18 vs 0.13, p < 0.001; mOD: 0.20 vs 0.14, p < 0.001), whereas subjects with sGD, but not mGD, had higher mean FI scores (sGD: 0.21 vs 0.13, p < 0.001; mGD: 0.14 vs 0.14, p = 0.953). Multivariate logistic regression demonstrated frail participants had significantly greater odds of sGD (odds ratio [OR] 4.11; 95% confidence interval [CI], 3.46 to 4.88), sOD (OR 2.35; 95% CI, 1.98 to 2.78), and mOD (OR 1.58; 95% CI, 1.22 to 2.05), but not mGD (OR 1.21; 95% CI, 0.91 to 1.61). This association was strongest in the frailest group. CONCLUSION Self-reported chemosensory dysfunction and mOD are independently associated with measures of frailty, suggesting a novel method to assess or predict frailty.
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Affiliation(s)
- Isaac A Bernstein
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Christopher R Roxbury
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Chicago Medicine, Chicago, IL
| | - Sandra Y Lin
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Nicholas R Rowan
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
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Chen SI, Chiang CL, Chao CT, Chiang CK, Huang JW. Gustatory Dysfunction Is Closely Associated With Frailty in Patients With Chronic Kidney Disease. J Ren Nutr 2020; 31:49-56. [PMID: 32773236 DOI: 10.1053/j.jrn.2020.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/05/2020] [Accepted: 06/21/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE Gustatory function is frequently impaired in patients with chronic kidney disease (CKD), and the associated taste dysfunction contributes to compromised nutrition. Whether gustatory dysfunction is an underappreciated risk factor for frailty in patients with CKD remains unclear. The objective of this work was to examine the role of gustatory dysfunction as a risk factor for frailty in patients with CKD. METHODS We prospectively enrolled patients with stage 3 or higher CKD from a single institute, with their gustatory function assessed using both objective (taste strip method) and subjective approaches, and frailty identified using the Edmonton frail scale, FRAIL scale, and Study of Osteoporotic Fracture (SOF) scale. Multiple regression analyses were performed to investigate whether results from gustatory function tests independently correlated with frailty. RESULTS Among the enrolled patients with CKD, 14 (17.9%) were found to be frail. We discovered that higher taste strip scores, or better taste function, were significantly associated with a lower frail probability (odds ratio [OR] 0.74 per score, 95% confidence interval [CI] 0.57-0.97), independent of clinical features, while better subjective taste function (OR 0.84 per score, 95% CI 0.74-0.96) and better oral cavity intactness (OR, 0.94; 95% CI, 0.9-0.98) were similarly associated with a lower frail probability among patients with CKD. CONCLUSION Gustatory dysfunction may be an important risk factor for frailty in patients with CKD. It is tempting to presume that interventions aiming to ameliorate such deficits may bear the potential of reducing frailty severity in this population with a high frailty burden.
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Affiliation(s)
- Shih-I Chen
- Nephrology Division, Department of Internal Medicine, National Taiwan University Hospital BeiHu Branch and National Taiwan University College of Medicine, Taipei, Taiwan; Geriatric and Community Medicine Research Center, National Taiwan University Hospital BeiHu Branch, Taipei, Taiwan
| | - Chin-Ling Chiang
- Department of Nursing, National Taiwan University Hospital BeiHu Branch, Taipei, Taiwan
| | - Chia-Ter Chao
- Nephrology Division, Department of Internal Medicine, National Taiwan University Hospital BeiHu Branch and National Taiwan University College of Medicine, Taipei, Taiwan; Geriatric and Community Medicine Research Center, National Taiwan University Hospital BeiHu Branch, Taipei, Taiwan; Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan.
| | - Chih-Kang Chiang
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan; Department of Integrative Diagnostics and Therapeutics, National Taiwan University Hospital, Taipei, Taiwan
| | - Jenq-Wen Huang
- Nephrology Division, Department of Internal Medicine, National Taiwan University Hospital Yunlin branch, Yunlin county, Taiwan
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Wood RM, Garcia Z, Daniels N, Landon SM, Humayun S, Lee HG, Macpherson LJ. Selective Peripheral Taste Dysfunction in APP/PS1 Mutant Transgenic Mice. J Alzheimers Dis 2020; 76:613-621. [PMID: 32538852 DOI: 10.3233/jad-200376] [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: 12/30/2022]
Abstract
BACKGROUND Previous studies indicate that taste dysfunction occurs early in the development of Alzheimer's disease. It is debatable whether the deficit in taste is due primarily to peripheral sensory mechanisms or to central processing, or a combination of the two. OBJECTIVE The aim of our current study is to combine behavior and histological data in APP/PS1 transgenic mice to determine whether APP/PS1 transgenic mice show deficits in unconditioned taste preference and avoidance behaviors and whether taste impairments are due to defects in the peripheral taste system and/or problems with central processing of taste information. METHODS The APP/PS1 transgenic mutant mice were used as a model of Alzheimer's disease. We employed a brief-access gustometer test to assess immediate orosensory taste responses of APP/PS1 mice. We used immunohistochemistry to examine tongue, gustatory ganglion, and brain tissues to determine a cytological basis for behavioral deficits. RESULTS There is a significant, selective reduction of bitter taste sensitivity in APP/PS1 mice. These mice also have a loss of TRPM5-expressing taste receptor cells in the circumvallate papillae of the tongue. While we observed no overt loss of neuron cell bodies within the primary gustatory sensory neurons, degeneration of the neurons' peripheral axons innervating the taste bud may play a role in the observed loss of TRPM5-expressing taste receptor cells. CONCLUSION This data supports a potential role for peripheral taste dysfunction in AD through the selective loss of taste receptor cells. Further study is necessary to delineate the mechanisms and pathological significance of this deficit in AD.
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Affiliation(s)
- Ryan M Wood
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA
| | - Zacnite Garcia
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA
| | - Nathan Daniels
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA
| | - Shannon M Landon
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA
| | - Saima Humayun
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA
| | - Hyoung-Gon Lee
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA.,The University of Texas at San Antonio, Neurosciences Institute, One UTSA Circle, San Antonio, TX, USA
| | - Lindsey J Macpherson
- The University of Texas at San Antonio, Department of Biology, One UTSA Circle, San Antonio, TX, USA.,The University of Texas at San Antonio, Neurosciences Institute, One UTSA Circle, San Antonio, TX, USA
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Duran-Badillo T, Salazar-González BC, Cruz-Quevedo JE, Sánchez-Alejo EJ, Gutierrez-Sanchez G, Hernández-Cortés PL. Sensory and cognitive functions, gait ability and functionality of older adults. Rev Lat Am Enfermagem 2020; 28:e3282. [PMID: 32491121 PMCID: PMC7266634 DOI: 10.1590/1518-8345.3499.3282] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/06/2020] [Indexed: 11/24/2022] Open
Abstract
Objective: to know the relationship between the sensory function, gait ability, and
cognitive function with dependency in older adults. Method: a descriptive cross-sectional design, 146 older adults took part. Measurements: Snellen chart, Audiometer, Stereognosia tests, Semmes-Weinstein monofilament,
basic aromas and flavors, GAITRite system, Montreal Cognitive Assessment
Test, the Barthel Index, and the Lawton and Brody Index. Results: sensory function, cognitive function and gait explain 25% dependence on basic
activities of daily life and 21% dependence on instrumental activities of
daily life. The variables that influence dependence on basic activities were
taste (p=.029), gait speed (p=.009), cadence (p=.002) and step length
(p=.001) and, in instrumental activities, gait speed (p=.049), cadence
(p=.028) and step length (p=.010). Conclusion: gait speed, cadence and stride length are variables that influence both
dependence on basic and instrumental activities of daily life.
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Affiliation(s)
- Tirso Duran-Badillo
- Unidad Académica Multidisciplinaria, Universidad Autónoma de Tamaulipas, Matamoros, Tamaulipas, Mexico
| | | | | | | | - Gustavo Gutierrez-Sanchez
- Unidad Académica Multidisciplinaria, Universidad Autónoma de Tamaulipas, Matamoros, Tamaulipas, Mexico
| | - Perla Lizeth Hernández-Cortés
- Facultad de Organización Deportiva, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
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Belissa E, Vallet T, Laribe-Caget S, Chevallier A, Chedhomme FX, Abdallah F, Bachalat N, Belbachir SA, Boulaich I, Bloch V, Delahaye A, Depoisson M, Wojcicki AD, Gibaud S, Grancher AS, Guinot C, Lachuer C, Lechowski L, Leglise P, Mahiou A, Meaume S, Michel C, Michelon H, Orven Y, Perquy I, Piccoli M, Rabus M, Ribemont AC, Rwabihama JP, Trouvin JH, Ruiz F, Boudy V. Acceptability of oral liquid pharmaceutical products in older adults: palatability and swallowability issues. BMC Geriatr 2019; 19:344. [PMID: 31810442 PMCID: PMC6898963 DOI: 10.1186/s12877-019-1337-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Background In institutional care, oral liquid pharmaceutical products are widely prescribed for older patients, especially for those with swallowing disorders. As medicines acceptability is a key factor for compliance in the older population, this study investigated the acceptability of oral liquid pharmaceutical products in this targeted population. Methods An observational, multicenter, prospective study was conducted in eight geriatric hospitals and eight nursing homes in France. Observers reported several behaviours/events describing the many aspects of acceptability for various pharmaceutical products’ uses in patients aged 65 and older. Acceptability scores of oral liquid pharmaceutical products were obtained using an acceptability reference framework (CAST - ClinSearch Acceptability Score Test®): a 3D-map summarizing the different users’ behaviors, with two clusters defining the positively and negatively accepted profiles materialized by the green and red zones, respectively. Results Among 1288 patients included in the core study and supporting the acceptability reference framework, 340 assessments were related to the administration of an oral liquid pharmaceutical product. The mean age of these patients was 87 (Range [66-104y]; SD = 6.7), 68% were women and 16% had swallowing disorders. Globally, the oral liquid pharmaceutical products were classified as “positively accepted,” the barycenter of the 340 assessments, along with the entire confidence ellipses surrounding it, were positioned on the green zone of the map. Sub-populations presenting a different acceptability profile have also been identified. For patients with swallowing disorders, the oral liquid pharmaceutical products were classified as “negatively accepted,” the barycenter of the 53 assessments along with 87% of its confidence ellipses were associated with this profile. A gender difference was observed for unflavored oral liquids. In women, they were classified “negatively accepted,” the barycenter of the 68 assessments with 75% of its confidence ellipses were located in the red zone, while they were classified “positively accepted” in men. Conclusion This study showed that oral liquid pharmaceutical products are a suboptimal alternative to solid oral dosage forms in patients with swallowing disorders. To ensure an optimal acceptability, prescribers should also consider the presence of a taste-masker in these oral liquids. As highlighted herein, palatability remains crucial in older populations, especially for women.
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Affiliation(s)
- Emilie Belissa
- Département Recherche et Développement Pharmaceutique, Agence Générale des Equipements et Produits de Santé (AGEPS), Assistance Publique-Hôpitaux de Paris (AP-HP), 7 rue du Fer à Moulin, 75005, Paris, France
| | - Thibault Vallet
- ClinSearch, 110 avenue Pierre Brossolette, 92240, Malakoff, France
| | - Sandra Laribe-Caget
- Hôpital Rothschild, Groupe Hospitalier Universitaire Est Parisien, AP-HP, 5 rue Santerre, 75012, Paris, France
| | - Alain Chevallier
- Hôpital Broca, Groupe Hospitalier Universitaire Paris Centre, AP-HP, 54-56 rue Pascal, 75013, Paris, France
| | - François-Xavier Chedhomme
- Hôpital Broca, Groupe Hospitalier Universitaire Paris Centre, AP-HP, 54-56 rue Pascal, 75013, Paris, France
| | - Fattima Abdallah
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Nathalie Bachalat
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Sid-Ahmed Belbachir
- Hôpital René Muret, Groupe Hospitalier Universitaire Paris Seine-Saint-Denis, AP-HP, avenue du Dr Schaeffner, 93270, Sevran, France
| | - Imad Boulaich
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Vanessa Bloch
- Hôpital Fernand Widal, Groupe Hospitalier Universitaire Saint-Louis - Lariboisière - Fernand-Widal, AP-HP, 200 rue du Faubourg Saint-Denis, 75010, Paris, France
| | - Anne Delahaye
- Hôpital Sainte Périne, Groupe Hospitalier Universitaire Paris Ile-de-France Ouest, AP-HP, 11 rue Chardon Lagache, 75016, Paris, France
| | - Mathieu Depoisson
- Hôpital Vaugirard, Groupe Hospitalier Universitaire Paris Ouest, AP-HP, 10 rue Vaugelas, 75015, Paris, France
| | - Amélie Dufaÿ Wojcicki
- Département Recherche et Développement Pharmaceutique, Agence Générale des Equipements et Produits de Santé (AGEPS), Assistance Publique-Hôpitaux de Paris (AP-HP), 7 rue du Fer à Moulin, 75005, Paris, France
| | - Stéphane Gibaud
- Centre Hospitalier de l'Ouest Vosgien, 1280 avenue division Leclerc, 88300, Neufchâteau, France
| | - Anne-Sophie Grancher
- Hôpital Rothschild, Groupe Hospitalier Universitaire Est Parisien, AP-HP, 5 rue Santerre, 75012, Paris, France
| | - Caroline Guinot
- Hôpital Fernand Widal, Groupe Hospitalier Universitaire Saint-Louis - Lariboisière - Fernand-Widal, AP-HP, 200 rue du Faubourg Saint-Denis, 75010, Paris, France
| | - Celia Lachuer
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Laurent Lechowski
- Hôpital Sainte Périne, Groupe Hospitalier Universitaire Paris Ile-de-France Ouest, AP-HP, 11 rue Chardon Lagache, 75016, Paris, France
| | - Patrick Leglise
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Abdel Mahiou
- Hôpital René Muret, Groupe Hospitalier Universitaire Paris Seine-Saint-Denis, AP-HP, avenue du Dr Schaeffner, 93270, Sevran, France
| | - Sylvie Meaume
- Hôpital Rothschild, Groupe Hospitalier Universitaire Est Parisien, AP-HP, 5 rue Santerre, 75012, Paris, France
| | - Corinne Michel
- Hôpital René Muret, Groupe Hospitalier Universitaire Paris Seine-Saint-Denis, AP-HP, avenue du Dr Schaeffner, 93270, Sevran, France
| | - Hugues Michelon
- Hôpital Sainte Périne, Groupe Hospitalier Universitaire Paris Ile-de-France Ouest, AP-HP, 11 rue Chardon Lagache, 75016, Paris, France
| | - Yann Orven
- Hôpital Vaugirard, Groupe Hospitalier Universitaire Paris Ouest, AP-HP, 10 rue Vaugelas, 75015, Paris, France
| | - Ines Perquy
- Hôpital Broca, Groupe Hospitalier Universitaire Paris Centre, AP-HP, 54-56 rue Pascal, 75013, Paris, France
| | - Matthieu Piccoli
- Hôpital Broca, Groupe Hospitalier Universitaire Paris Centre, AP-HP, 54-56 rue Pascal, 75013, Paris, France
| | - Maïté Rabus
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Annie-Claude Ribemont
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Jean-Paul Rwabihama
- Hôpital Joffre Dupuytren, Groupe Hospitalier Universitaire Henri Mondor, AP-HP, 1 rue Eugène Delacroix, 91210, Draveil, France
| | - Jean-Hugues Trouvin
- Département Recherche et Développement Pharmaceutique, Agence Générale des Equipements et Produits de Santé (AGEPS), Assistance Publique-Hôpitaux de Paris (AP-HP), 7 rue du Fer à Moulin, 75005, Paris, France
| | - Fabrice Ruiz
- ClinSearch, 110 avenue Pierre Brossolette, 92240, Malakoff, France
| | - Vincent Boudy
- Département Recherche et Développement Pharmaceutique, Agence Générale des Equipements et Produits de Santé (AGEPS), Assistance Publique-Hôpitaux de Paris (AP-HP), 7 rue du Fer à Moulin, 75005, Paris, France.
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