1
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Xu X, Kong W, Geng L, Chen C, Yang H, Bian W, Chen S, Xu R, Liang J, Sun L. Association between cognitive impairment and olfactory deficits in systemic lupus erythematosus without major neuropsychiatric syndromes. Lupus 2023; 32:1245-1257. [PMID: 37700453 DOI: 10.1177/09612033231201278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
OBJECTIVE The aim of the study was to investigate the utility of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), evaluate cognitive deficits in systemic lupus erythematosus (SLE) patients and examine the relationship between cognitive and olfactory functions. METHODS 55 SLE patients and 50 healthy controls were administered by RBANS including five indexes: immediate memory (IMME), visuospatial/constructional (Vis/Con), language (LANG), attention (ATT), and delayed memory (DEME). Olfactory functions were evaluated by computerized testing including three stages of smell: threshold (THR), identification (ID), and memory (ME) of different odors. The disease activity and cumulative damage were assessed by the SLE Disease Activity Index 2000 (SLEDAI-2K) and the Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology (ACR) Damage Index (SDI). RESULTS SLE patients exhibited significant lower total RBANS scores, IMME, Vis/Con, ATT, and DEME index scores than healthy controls (p < 0.01 for all and p = 0.027 for attention). Reduced RBANS scores were associated with several organ involvement and autoantibodies. SLE patients with higher SLEDAI-2K scores or with accumulated damage (SDI≥1) showed decreased RBANS scores. All the olfactory scores in SLE patients were significantly decreased than controls (p = 0.001). Patients had higher proportion of anosmia (8.57% vs 0%) and hyposmia (28.58% vs 5.72%) than controls (χ2 = 10.533, p = 0.015). Multivariable regression analysis revealed that olfactory functions had a positive effect on RBANS index scores. Olfactory memory and total scores were significantly correlated with the DEME (r = 0.393, p = 0.021) and total scores (r = 0.429, p = 0.011). CONCLUSION This study indicates that significantly cognitive and olfactory functions are impaired in SLE patients. The RBANS is a potentially useful instrument for evaluating neuropsychological status in SLE. Physicians are encouraged to perform routine screening in SLE patients to detect subtle cognitive dysfunction.
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Affiliation(s)
- Xue Xu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wei Kong
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Linyu Geng
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Chen Chen
- Department of Clinical Nutrition, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Hailong Yang
- Department of Psychology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wenjuan Bian
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Siwen Chen
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Renju Xu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jun Liang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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Rezaeyan A, Asadi S, Kamrava SK, Zare-Sadeghi A. Brain structural analysis in patients with post-traumatic anosmia: Voxel-based and surface-based morphometry. J Neuroradiol 2023; 50:482-491. [PMID: 36610937 DOI: 10.1016/j.neurad.2022.11.005] [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: 12/27/2021] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE AND BACKGROUND Voxel-based morphometry (VBM) and surfaced-based morphometry (SBM) investigate the characteristics of gray matter (GM) in various diseases such as post-traumatic anosmia (PTA). This study uses SBM and VBM to examine neuroanatomical measurements of GM and its functional correlates in patients with PTA. METHODS MRI images and olfactory test results were collected from 39 PTA patients and 39 healthy controls. Sniffin' Sticks test was used to assess olfactory function. GM structure was analyzed using CAT12 and FreeSurfer, and olfactory bulb (OB) volume and olfactory sulcus (OS) depth were calculated using 3D-Slicer. RESULTS Anosmic patients showed lower scores in the Sniffin' Sticks olfactory test, as well as reduction of OB volume and OS depth compared to control subjects. In these patients, overlapping changes were found between the VBM and SBM findings in the areas with significant effects, in particular, orbitofrontal cortex, superior and middle frontal gyrus, superior and middle temporal gyrus, anterior cingulate cortex, and insular cortex. Using SBM, decreased cortical thickness clusters were located in inferior and superior parietal gyrus. Further analysis in the region of interest demonstrated correlations between the orbitofrontal cortex and odor threshold score as well as the middle frontal gyrus and smell loss duration. CONCLUSION These findings show that the morphological alterations in the OB, OS, and the central olfactory pathways might contribute to the pathogenic mechanism of olfactory dysfunction after head injury.
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Affiliation(s)
- Abolhasan Rezaeyan
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran; Department of Medical Physics, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Somayeh Asadi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - S Kamran Kamrava
- ENT and Head and Neck Research Center and Department, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Arash Zare-Sadeghi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; ENT and Head and Neck Research Center and Department, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran; Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.
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3
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D'Alessandro A, Grigorescu O, Höchenberger R, Ohla K, Hummel T. A Bayesian adaptive algorithm (
QUEST
) to estimate olfactory threshold in hyposmic patients. J SENS STUD 2022. [DOI: 10.1111/joss.12769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea D'Alessandro
- Smell & Taste Clinic, Department of Otorhinolaryngology Technical University of Dresden Dresden Germany
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology University of Trieste Trieste Italy
| | - Oana Grigorescu
- Smell & Taste Clinic, Department of Otorhinolaryngology Technical University of Dresden Dresden Germany
- University Center for Orthopedics, Trauma and Plastic Surgery, Faculty of Medicine Carl Gustav Carus Technical University of Dresden Dresden Germany
| | | | | | - Thomas Hummel
- Smell & Taste Clinic, Department of Otorhinolaryngology Technical University of Dresden Dresden Germany
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4
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Nakanishi M, Fornazieri MA, Lança Gomes P, Dias LADM, Freire GSM, Vinha LGDA, Barbosa de Sa LC, Voegels RL, Galvão C, Lima WTA. The digital scent device as a new concept for olfactory assessment. Int Forum Allergy Rhinol 2022; 12:1263-1272. [PMID: 35224885 DOI: 10.1002/alr.22992] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND There are major challenges in olfactory measurements in clinical practice; therefore, a handheld digital scent device (DSD; Noar MultiScent 20) was developed as a tablet with an integrated storage system for odors. The DSD is a self-administered, handheld device that controls the duration of odor release to the nasal cavity through a touchscreen digital interface with automatic database generation. In this study we aimed to determine the feasibility of this DSD as an olfactory assessment test. METHODS We recruited 180 participants (age [mean ± standard deviation], 34.58 ± 9.71 years; 114 women and 66 men) to participate in smell tests using both the DSD and the 40-item Smell Identification Test (SIT-40), which contained the same type and order of odors and the same multiple-choice answers. The scores were compared and evaluated for correlation between the tests, and test-retest reliability was calculated. RESULTS The DSD test scores were higher than the SIT-40 scores (median [interquartile range], 32 [5.0] vs 31 [7.0]; p = 0.005). The completion time was less for the DSD test than for the SIT-40 (12.5 [5.0] vs 16 [6.0] minutes; p < 0.001). The tests were strongly correlated (Spearman rho = 0.74; p < 0.001) and exhibited a high level of agreement (Bland-Altman regression coefficient = 0.672; p = 0.003). The DSD test-retest reliability coefficient was 0.820. CONCLUSION The DSD is feasible as an olfactory assessment test. The digitalization of olfactory assessment combined with data science may enable new research perspectives in the field of olfaction.
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Affiliation(s)
- Marcio Nakanishi
- Department of Otorhinolaryngology, University Hospital of Brasília UnB-EBSERH, Brasilia, Federal District, Brazil.,Department of Ophthalmology and Otorhinolaryngology, Ribeirão Preto Medical School-USP, Ribeirão Preto, São Paulo, Brazil.,Division of Otorhinolaryngology, D'Or Institute of Education and Research, Hospital Santa Luzia, Brasilia, Brazil
| | - Marco Aurélio Fornazieri
- Department of Otorhinolaryngology State University of Londrina, Pontifical Catholic University of Paraná, Londrina, PR, Brazil
| | - Pedro Lança Gomes
- Division of Otorhinolaryngology, D'Or Institute of Education and Research, Hospital Santa Luzia, Brasilia, Brazil
| | | | | | | | | | - Richard Louis Voegels
- Department of Ophthalmology and Otorhinolaryngology, University of São Paulo, São Paulo, Brazil
| | | | - Wilma Terezinha Anselmo Lima
- Department of Ophthalmology and Otorhinolaryngology, Ribeirão Preto Medical School-USP, Ribeirão Preto, São Paulo, Brazil
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Thorstensen WM, Øie MR, Dahlslett SB, Sue-Chu M, Steinsvåg SK, Helvik AS. Olfaction in COPD. Rhinology 2021; 60:47-55. [PMID: 34647543 DOI: 10.4193/rhin21.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Olfaction is poorly characterized in COPD. To test the hypothesis that olfaction is reduced in COPD, we assessed olfaction with the "Sniffin' Sticks" test and a questionnaire addressing olfaction in COPD and a corresponding control group in respect to age and sex. We also explored whether there is an association between COPD, chronic rhinosinusitis without nasal polyps (CRSsNP), and other predefined covariates with olfactory function. METHODOLOGY Olfactory function was assessed by the score for threshold (T), discrimination (D) and identification (I), and the composite TDI score in the "Sniffin' Sticks" test and by self-reported evaluation of impaired olfaction and of "decreased sense of smell and taste" in the 22-item Sino-Nasal Outcome Test (SNOT-22) in 90 COPD patients and 93 controls. A clinical interview and ENT-examination with nasal endoscopy, skin prick test and spirometry with reversibility were performed. RESULTS The TDI, D and I scores were significantly lower in the COPD group than in the control group. The T score was not significantly different between the two groups. Hyposmia and anosmia were present in up to 79% of patients with COPD. The prevalence of self-reported impaired olfactory function and for "decreased sense of smell and taste" - was more than two-fold greater in the COPD than in the control group. COPD, higher age, male sex and allergy were associated with a lower TDI score, while CRSsNP was not associated with the TDI score. CONCLUSIONS COPD is associated with olfactory dysfunction and the underlying mechanisms for this dysfunction should be elucidated.
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Affiliation(s)
- W M Thorstensen
- Dept of Otolaryngology, Head and Neck Surgery, St. Olavs University Hospital, Trondheim, Norway.,Dept of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - M R Øie
- Dept of Otolaryngology, Head and Neck Surgery, St. Olavs University Hospital, Trondheim, Norway.,Dept of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - S B Dahlslett
- Dept of Otolaryngology, Head and Neck Surgery, St. Olavs University Hospital, Trondheim, Norway
| | - M Sue-Chu
- Dept of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.,Dept of Thoracic Medicine, St. Olavs University Hospital, Trondheim, Norway
| | - S K Steinsvåg
- Dept of Otolaryngology, Head and Neck Surgery, Sørlandet Hospital, Kristiansand, Norway.,Haukeland University Hospital, Bergen, Norway
| | - A S Helvik
- Dept of Otolaryngology, Head and Neck Surgery, St. Olavs University Hospital, Trondheim, Norway.,Dept of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway
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6
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Rezaeyan A, Asadi S, Kamrava SK, Khoei S, Zare-Sadeghi A. Reorganizing brain structure through olfactory training in post-traumatic smell impairment: An MRI study. J Neuroradiol 2021; 49:333-342. [PMID: 33957160 DOI: 10.1016/j.neurad.2021.04.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/01/2021] [Accepted: 04/24/2021] [Indexed: 12/13/2022]
Abstract
PURPOSE AND BACKGROUND Post-traumatic olfactory dysfunction (PTOD), mostly caused by head injury, is thought to be associated with changes in the structure and function of the brain olfactory processing areas. Training and repeated exposure to odorants lead to enhanced olfactory capability. This study investigated the effects of a 16-weeks olfactory training (OT) on olfactory function and brain structure. METHODS Twenty-five patients with PTOD were randomly divided in three groups: (1) 9 control patients who did not receive any training, (2) 9 patients underwent classical OT by 4 fixed odors, and (3) 7 patients underwent modified OT coming across 4 sets of 4 different odors sequentially. Before and after the training period, all patients performed olfactory function tests and structural magnetic resonance imaging (MRI). Sniffin' Sticks test was used to assess olfactory function. MRI data were analyzed using voxel-based morphometry and surface-based morphometry. RESULTS Both trained groups showed a considerable recovery of olfactory function, especially in odor identification. MRI data analysis revealed that the classical OT leads to increases in cortical thickness/density of several brain regions, including the right superior and middle frontal gyrus, and bilateral cerebellums. In addition, the modified OT yielded a lower extent of cortical measures in the right orbital frontal cortex and right insular. Following modified OT, a positive correlation was observed between the odor identification and the right orbital frontal cortex. CONCLUSION Both olfactory training methods can improve olfactory function and that the improvement is associated with changes in the structure of olfactory processing areas of the brain.
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Affiliation(s)
- Abolhasan Rezaeyan
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Somayeh Asadi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - S Kamran Kamrava
- ENT and Head & Neck Research Center and Department, The Five Senses Institute, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Samideh Khoei
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran; Finetech in Medicine Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Arash Zare-Sadeghi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran; Finetech in Medicine Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran.
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7
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Abstract
Approximately 5% of the general population is affected by functional anosmia with approximately additional 15% exhibiting decreased olfactory function. Many of these individuals ask for help. Because the subjective rating of olfactory function is biased, assessment of olfactory function is important. Olfactory measurements are needed for patient counseling and the tracking of changes in the sense of smell over time. The present review provides an overview of frequently used psychophysical tests for olfactory function, discusses differences between threshold and suprathreshold aspects of olfactory function, and gives examples on how to apply psychophysical tests.
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Affiliation(s)
- Thomas Hummel
- Department of Otorhinolaryngology, Smell & Taste Clinic, "Technische Universität Dresden", Dresden, Germany
| | - Dino Podlesek
- Department of Neurosurgery, "Technische Universität Dresden", Dresden, Germany
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8
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Muhlbauer Avni M, Yosha-Orpaz N, Konen O, Goldenberg-Cohen N, Straussberg R. Association of pediatric idiopathic intracranial hypertension with olfactory performance. Eur J Paediatr Neurol 2021; 30:162-169. [PMID: 33129661 PMCID: PMC7532354 DOI: 10.1016/j.ejpn.2020.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 09/19/2020] [Accepted: 09/22/2020] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the association between pediatric Idiopathic intracranial hypertension (IIH) and olfactory performance. METHODS A cross-sectional comparative study was conducted including 17 patients under 18 years diagnosed with IIH at a tertiary hospital and 17 healthy age- and sex-matched subjects. All participants underwent the semi-objective chemosensory Sniffin' Sticks test for evaluation of odor threshold (OT), indicative of peripheral olfactory function, and odor identification (OI), reflecting higher cognitive olfactory processing. Scores were compared and referred to the updated normative values. Demographic, clinical, and neuroimaging data were collected from the medical files. The patients with IIH were reassessed for olfactory function and clinical state at the subsequent follow-up, under treatment. RESULTS Compared to controls, the IIH group had a significantly lower mean OT score (6.41 ± 3.43 vs 10.21 ± 2.79, p = 0.001) and higher rate of OT score below the 10th percentile for age and sex according to the normative values (47.1% vs 0%, p = 0.001). There was no significant between-group difference in mean OI scores (9.82 ± 1.63, vs 10.59 ± 1.84, p = 0.290). OT scores were not associated with sex, age, body mass index, neuroimaging abnormalities, or lumbar puncture opening pressure. At the follow-up assessment, the OT scores were improved (9.36 ± 4.17 vs 6.7 ± 3.32, p = 0.027) whereas the OI scores were unchanged (9.88 ± 2.5 vs 9.69 ± 1.58, p = 0.432). CONCLUSIONS As reported in adults, children and adolescents with IIH appear to have a selective reversible deficit in olfactory detection threshold, which may imply a reduction in peripheral olfactory perceptual ability. Future studies should examine the predictive value of olfactory function for IIH.
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Affiliation(s)
- Maya Muhlbauer Avni
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel.
| | - Naama Yosha-Orpaz
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel; Department of Pediatrics A, Schneider Children's Medical Center of Israel, Petach Tikva, 4920235, Israel.
| | - Osnat Konen
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel; Department of Imaging, Schneider Children's Medical Center of Israel, Petach Tikva, 4920235, Israel.
| | - Nitza Goldenberg-Cohen
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel; Pediatric Ophthalmology Unit, Schneider Children's Medical Center of Israel, Petach Tikva, 4920235, Israel.
| | - Rachel Straussberg
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel; Neurology Institute, Schneider Children's Medical Center of Israel, Petach Tikva, 4920235, Israel.
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9
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Falkowski B, Duda-Sobczak A, Araszkiewicz A, Chudzinski M, Urbas M, Gajewska E, Borucki L, Zozulinska-Ziolkiewicz D. Insulin resistance is associated with impaired olfactory function in adult patients with type 1 diabetes: A cross-sectional study. Diabetes Metab Res Rev 2020; 36:e3307. [PMID: 32129918 DOI: 10.1002/dmrr.3307] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/26/2020] [Accepted: 02/27/2020] [Indexed: 01/13/2023]
Abstract
AIM To investigate whether insulin resistance is a predictor for decreased olfactory function in adult type 1 diabetes patients (T1DM). MATERIALS AND METHODS The following parameters were examined in the group of 113 T1DM participants: body mass index (BMI), waist-hip ratio (WHR), TG/HDL ratio, glycated hemoglobin (HbA1c ), visceral fat (VF) in body bioimpedance, specific calculators (eGDR, VAI). Bilateral olfactory test score (BOTS) was performed using 12-odour-tests from Sniffin' Sticks. Then participants were allocated to one of two groups: normosmia (10-12 odours identified) or hyposmia/anosmia (0-9 odours). The association between BOTS and insulin resistance indicators was analyzed using: Spearman's rank correlation, multivariate linear regression analysis, and receiver operating characteristic (ROC) curve. RESULTS 49.6% participants were diagnosed with hyposmia/anosmia, median BOTS was 10. BOTS correlated significantly with: WHR, TG, VF index, TG/HDL ratio, VAI, and eGDR. In multivariate linear regression analysis higher WHR turned out to be statistically significant independent predictor of lower BOTS (β = -0.36; P = .005) after adjustment for age, sex, TG and peripheral neuropathy (R2 = 0.19; P = .0005). The ROC analysis indicated a WHR cut-off of 0.92 [area under the ROC curve (AUC): 0.737; 95% confidence interval (CI): 0.647-0.828, P < .0001] as the best among evaluated factors significantly affecting hyposmia/anosmia occurrence (sensitivity of this cut-off 0.50 and specificity 0.86). CONCLUSIONS We have provided evidence of an association between lowered insulin sensitivity expressed in bioelectrical impedance analysis, anthropometrical (WHR), laboratory (TG/HDL ratio) measurements, specific calculators (eGDR, VAI) and deteriorated olfactory function.
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Affiliation(s)
- Bogusz Falkowski
- Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poznan, Poland
| | - Anna Duda-Sobczak
- Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poznan, Poland
| | - Aleksandra Araszkiewicz
- Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poznan, Poland
| | - Maciej Chudzinski
- Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poznan, Poland
| | - Magdalena Urbas
- Department of Otorhinolaryngology, Raszeja City Hospital, Poznan, Poland
| | - Ewa Gajewska
- Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poznan, Poland
| | - Lukasz Borucki
- Department of Otorhinolaryngology, Raszeja City Hospital, Poznan, Poland
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10
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Lötsch J, Hummel T. Machine-learned analysis of side-differences in odor identification performance. Neuroscience 2019; 422:44-53. [PMID: 31689389 DOI: 10.1016/j.neuroscience.2019.09.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 11/28/2022]
Abstract
A right-left dichotomy of olfactory processes has been recognized on several levels of the perception or processing of olfactory input. On a clinical level, the lateralization of components of human olfaction is contrasted by the predominantly birhinal olfactory testing. The present analyses aimed at investigation of the relation of such side-differences related with the subject's age, sex and with the cause or degree of olfactory loss. The detection of 12 different odors from a validated clinical standard test of human olfactory function was assessed separately for both nostrils in a cohort of 6016 subjects who had reported for olfactory loss associated with different etiologies. In 26.8% of all odor identification tasks, the same odor was correctly identified only when using one but not the other nostril. Beside the subjects' age, associated with reduced olfactory performance, the analysis identified additional modulators of the agreement between nostrils, quantified as Cohen's kappa. Classical hierarchical clustering and machine-learning based deep clustering resulted in a consistent cluster structure of odors. This structure could be interpreted as possibly owing to different familiarity of the odors. The observation particularly owed to olfactory loss attributed to head trauma, which may hint at a different impact on the left or right hemisphere processing of olfactory input. Thus, between-nostrils agreement in odor identification is limited and the common unilateral olfactory testing probably misses important information. Lateral differences owe to age, sex, kind of odor and etiology of olfactory loss.
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Affiliation(s)
- Jörn Lötsch
- Institute of Clinical Pharmacology, Goethe - University, Theodor Stern Kai 7, 60590 Frankfurt am Main, Germany; Fraunhofer Institute of Molecular Biology and Applied Ecology - Project Group Translational Medicine and Pharmacology (IME-TMP), Theodor - Stern - Kai 7, 60590 Frankfurt am Main, Germany.
| | - Thomas Hummel
- Smell & Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
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11
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Magliulo G, Iannella G, Ciofalo A, Angeletti D, Pulvirenti F, Quinti I. The olfactory function in patients with common variable immunodeficiency. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:429-434. [PMID: 31196799 DOI: 10.1016/j.anorl.2018.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/24/2017] [Accepted: 02/16/2018] [Indexed: 11/28/2022]
Abstract
AIMS To determine the incidence of olfactory dysfunction in common variable immunodeficiency patients. To evaluate the correlation between olfactory dysfunction and chronic rhinosinusitis in this class of patients. MATERIALS AND METHODS Fifty patients, with a diagnosis of common variable immunodeficiency and under immunoglobulin replacement therapy, were submitted to an otolaryngology physical examination and a CT scan of the craniofacial structures in order to show the presence of signs of chronic rhinosinusitis. An olfactory function evaluation was executed using the Sniffin' Sticks Test, with assessment of olfactory threshold, discrimination, identification and overall composite scores (TDI: threshold-discrimination-identification score). RESULTS An olfactory dysfunction was found in 23 (46%) common variable immunodeficiency patients, with hyposmia and anosmia respectively present in 65% and 38% of them. The mean TDI score in the study group was 27.7. Common variable immunodeficiency patients with CRS presented a more suggestive increase of the olfactory threshold, discrimination and identification compared to those without chronic rhinosinusitis. CONCLUSION In conclusion, patients with common variable immunodeficiency seem to suffer from olfactory disorders more than healthy people. One of the causal factors could be considered the presence of rhinosinusal pathologies.
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Affiliation(s)
- G Magliulo
- Organi di Senso Department, Sapienza University of Rome, Viale del Policlinico, 151, 00161 Rome, Italy.
| | - G Iannella
- Organi di Senso Department, Sapienza University of Rome, Viale del Policlinico, 151, 00161 Rome, Italy
| | - A Ciofalo
- Organi di Senso Department, Sapienza University of Rome, Viale del Policlinico, 151, 00161 Rome, Italy
| | - D Angeletti
- Organi di Senso Department, Sapienza University of Rome, Viale del Policlinico, 151, 00161 Rome, Italy
| | - F Pulvirenti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - I Quinti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
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12
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Lötsch J, Hummel T. Clinical Usefulness of Self-Rated Olfactory Performance—A Data Science-Based Assessment of 6000 Patients. Chem Senses 2019; 44:357-364. [DOI: 10.1093/chemse/bjz029] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
In clinical practice, with its time constraints, a frequent conclusion is that asking about the ability to smell may suffice to detect olfactory problems. To address this question systematically, 6049 subjects were asked about how well they can perceive odors, with 5 possible responses. Participants presented at a University Department of Otorhinolaryngology, where olfactory testing was part of the routine investigation performed in patients receiving surgery at the clinic (for various reasons). According to an odor identification test, 1227 subjects had functional anosmia and 3113 were labeled with normosmia. Measures of laboratory test performance were used to assess the success of self-estimates to capture the olfactory diagnosis. Ratings of the olfactory function as absent or impaired provided the diagnosis of anosmia at a balanced accuracy of 79%, whereas ratings of good or excellent indicated normosmia at a balanced accuracy of 64.6%. The number of incorrect judgments of anosmia increased with age, whereas false negative self-estimates of normosmia became rarer with increasing age. The subject’s sex was irrelevant in this context. Thus, when asking the question “How well can you smell odors?” and querying standardized responses, fairly accurate information can be obtained about whether or not the subject can smell. However, this has to be completed with the almost 30% (355 subjects) of anosmic patients who judged their ability to smell as at least “average.” Thus, olfactory testing using reliable and validated tests appears indispensable.
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Affiliation(s)
- Jörn Lötsch
- Institute of Clinical Pharmacology, Goethe University, Theodor-Stern-Kai, Frankfurt am Main, Germany
- Fraunhofer Institute of Molecular Biology and Applied Ecology—Project Group Translational Medicine and Pharmacology (IME-TMP), Theodor-Stern-Kai, Frankfurt am Main, Germany
| | - Thomas Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Fetscherstrasse, Dresden, Germany
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Magliulo G, De Vincentiis M, Iannella G, Ciofalo A, Pasquariello B, Manno A, Angeletti D, Polimeni A. Olfactory evaluation in obstructive sleep apnoea patients. ACTA OTORHINOLARYNGOLOGICA ITALICA : ORGANO UFFICIALE DELLA SOCIETA ITALIANA DI OTORINOLARINGOLOGIA E CHIRURGIA CERVICO-FACCIALE 2018; 38:338-345. [PMID: 30197425 PMCID: PMC6146584 DOI: 10.14639/0392-100x-1981] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/24/2018] [Indexed: 12/31/2022]
Abstract
The sense of smell has a high impact on the quality of life. The aim of the present study was to investigate olfactory dysfunction in patients with obstructive sleep apnoea syndrome (OSAS) and correlate the severity of disease with olfactory dysfunction. The relationships between nasal obstruction, nasal mucociliary cleareance and olfactory tests were also evaluated. Sixty patients with a diagnosis of OSAS were enrolled and underwent olfactory function evaluation. In all patients olfactory performance was tested with the Sniffin' Sticks method. Mucociliary transport times and anterior rhinomanometry were performed to identify eventual nasal obstruction and deficits in nasal mucociliary clearance. Olfactory dysfunction was present in 22 (36.6%) patients of the study group: of these, hyposmia was present in 19 (86.4%) and anosmia in 3 (13.6%). The mean TDI score in the study group was 30. A strong correlation between the olfactory dysfunction and severity of sleep apnoea measured using the AHI was found. Patients with OSA would seem to have a high incidence of olfactory dysfunction. The degree of olfactory dysfunction appears to be related to the severity of disease. However, other co-factors such as nasal obstruction and reduced mucociliary clearance might also play a role in of the aetiology of this condition.
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Affiliation(s)
- G. Magliulo
- Department of Organi di Senso, University Sapienza, Rome, Italy
| | | | - G. Iannella
- Department of Organi di Senso, University Sapienza, Rome, Italy
| | - A. Ciofalo
- Department of Organi di Senso, University Sapienza, Rome, Italy
| | - B. Pasquariello
- Department of Organi di Senso, University Sapienza, Rome, Italy
| | - A. Manno
- Department of Organi di Senso, University Sapienza, Rome, Italy
| | - D. Angeletti
- Department of Organi di Senso, University Sapienza, Rome, Italy
| | - A. Polimeni
- Department of Oral and Maxillo Facial Sciences, University Sapienza, Rome, Italy
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Bratt M, Skandsen T, Hummel T, Moen KG, Vik A, Nordgård S, Helvik AS. Frequency and prognostic factors of olfactory dysfunction after traumatic brain injury. Brain Inj 2018; 32:1021-1027. [DOI: 10.1080/02699052.2018.1469043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mette Bratt
- Department of Otorhinolaryngology, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Faculty of Medicine and Health Sciences (MH), Trondheim, Norway
| | - Toril Skandsen
- Department of Physical Medicine and Rehabilitation, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Faculty of Medicine and Health Sciences (MH), Trondheim, Norway
| | - Thomas Hummel
- Department of Otorhinolaryngology, Smell & Taste Clinic, Dresden, Germany
| | - Kent G. Moen
- Clinic of Radiology and Nuclear Medicine, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Faculty of Medicine and Health Sciences (MH), Trondheim, Norway
| | - Anne Vik
- Department of Neurosurgery, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Faculty of Medicine and Health Sciences (MH), Trondheim, Norway
| | - Ståle Nordgård
- Department of Otorhinolaryngology, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Faculty of Medicine and Health Sciences (MH), Trondheim, Norway
| | - Anne-S. Helvik
- Department of Otorhinolaryngology, St. Olavs University Hospital, Trondheim, Norway
- Department of Public Health and Nursing, NTNU, Faculty of MH, Trondheim, Norway
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Ciofalo A, De Vincentiis M, Iannella G, Zambetti G, Giacomello P, Altissimi G, Greco A, Fusconi M, Pasquariello B, Magliulo G. Mild traumatic brain injury: evaluation of olfactory dysfunction and clinical–neurological characteristics. Brain Inj 2018; 32:550-556. [DOI: 10.1080/02699052.2018.1432074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Andrea Ciofalo
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Marco De Vincentiis
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Giannicola Iannella
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Giampietro Zambetti
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Paola Giacomello
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Giancarlo Altissimi
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Antonio Greco
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Massimo Fusconi
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Benedetta Pasquariello
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
| | - Giuseppe Magliulo
- Department of ‘Organi di Senso’, University “Sapienza”, Rome, Italy
- Department of Social Sciences and Economics, University “ Sapienza”, Rome, Italy
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Bombini MF, Peres FA, Lapa AT, Sinicato NA, Quental BR, Pincelli ÁDSM, Amaral TN, Gomes CC, Del Rio AP, Marques-Neto JF, Costallat LTL, Fernandes PT, Cendes F, Rittner L, Appenzeller S. Olfactory function in systemic lupus erythematosus and systemic sclerosis. A longitudinal study and review of the literature. Autoimmun Rev 2018; 17:405-412. [PMID: 29444467 DOI: 10.1016/j.autrev.2018.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 11/28/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND/PURPOSE To evaluate olfactory function in systemic lupus erythematosus (SLE), systemic sclerosis (SSc) and healthy controls over a 2-year period, and to determine the association of olfactory dysfunction with age, disease activity, disease damage, treatment, anxiety and depression symptoms and limbic structures volumes. METHODS Consecutive SLE and SSc patients were enrolled in this study. Clinical, laboratory disease activity and damage were assessed according to diseases specific guidelines. Olfactory functions were evaluated using the Sniffin' Sticks test (TDI). Volumetric magnetic resonance imaging (MRI) was obtained in a 3T Phillips scanner. Amygdalae and hippocampi volumes were analyzed using FreeSurfer® software. RESULTS We included 143 SLE, 57 SSc and 166 healthy volunteers. Olfactory dysfunction was observed in 78 (54.5%) SLE, 35 (59.3%) SSc patients and in 24 (14.45%) controls (p<0.001) at study entry. SLE and SSc patients had significantly lower mean in all three phases (TDI) of the olfactory assessment when compared with healthy volunteers. In SLE, the presence of olfactory dysfunction was associated with older age, disease activity, higher anxiety and depression symptoms score, smaller left hippocampus volume, smaller left and right amygdalae volume and the presence of anti-ribosomal P (anti-P) antibodies. In SSc the presence of olfactory impairment was associated with older age, disease activity, smaller left and right hippocampi volumes and smaller right amygdala volume. Olfactory function was repeated after a 2-year period in 90 SLE, 35 SSc and 62 controls and was stable in all three groups. CONCLUSION Both SLE and SSc patients with longstanding disease had significant reduction in all stages of TDI that maintained stable over a 2-year period. Olfactory dysfunction was associated with age, inflammation and hippocampi and amygdalae volumes. In SLE, additional association with anti-P, anxiety and depression symptoms was observed.
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Affiliation(s)
- Mariana Freschi Bombini
- Physiopathology Graduate Program, School of Medical Sciences, University of Campinas, Brazil; Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil
| | - Fernando Augusto Peres
- Medicine Graduate Program, School of Medical Sciences, University of Campinas, Brazil; Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil
| | - Aline Tamires Lapa
- Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil; Child and Adolescent Health Graduate Program, School of Medical Sciences, University of Campinas, Brazil
| | - Nailú Angélica Sinicato
- Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil; Child and Adolescent Health Graduate Program, School of Medical Sciences, University of Campinas, Brazil
| | - Beatriz Ricato Quental
- Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil
| | - Ágatha de Souza Melo Pincelli
- Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil
| | - Tiago Nardi Amaral
- Medicine Graduate Program, School of Medical Sciences, University of Campinas, Brazil; Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil; Department of Medicine, Rheumatology Unit, School of Medical Sciences, University of Campinas, Brazil
| | | | - Ana Paula Del Rio
- Department of Medicine, Rheumatology Unit, School of Medical Sciences, University of Campinas, Brazil
| | | | - Lilian T L Costallat
- Department of Medicine, Rheumatology Unit, School of Medical Sciences, University of Campinas, Brazil
| | | | - Fernando Cendes
- Medical Imaging Computing Laboratory, School of Electrical and Computer Engineering, University of Campinas, Brazil
| | - Leticia Rittner
- Department of Neurology, School of Medical Sciences, University of Campinas, Brazil
| | - Simone Appenzeller
- Rheumatology Lab, School of Medical Sciences, University of Campinas, Brazil; Autoimmunity Lab School of Medical Sciences, University of Campinas, Brazil; Department of Medicine, Rheumatology Unit, School of Medical Sciences, University of Campinas, Brazil.
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Association of Helicobacter pylori infection with olfactory function using smell identification screening test. Eur Arch Otorhinolaryngol 2017; 274:3403-3405. [PMID: 28653267 DOI: 10.1007/s00405-017-4656-y] [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: 05/01/2017] [Accepted: 06/20/2017] [Indexed: 10/19/2022]
Abstract
The aim of the present study is to investigate the role of Helicobacter pylori in olfactory function. Thirty-six patients (mean age 38.5) aged between 18 and 55 years who were diagnosed with H. pylori by gastric biopsies and age- and sex-matched 30 healthy adults (mean age 33.6) were included in the study. All participants underwent a detailed ear-nose-throat examination including endoscopic examination of the nasal cavity and laryngeal area, and olfactory tests were performed using the Sniffin' Sticks, a 12-item screening test (Sniffin'Sticks; Burghart, Wedel, Germany) and odor scores were recorded. The mean odor score was 7.9 ± 1.7 (range 2-10) in the patient group and 10.3 ± 1.4 (range 6-12) in the control group. There were significant lower scores in the patient group compared to the control group (p < 0.05). In conclusion, it is apparent that there is an association of H. pylori infection with olfactory dysfunction. H. pylori infection should be considered as possible etiological factors in patients with olfactory dysfunction.
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Schienle A, Schöpf V. Disgust-Related Olfactory Processing: The Role of Gender and Trait Disgust. Perception 2017; 46:475-483. [PMID: 28077013 DOI: 10.1177/0301006616689278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
For the rejection of disgusting and potentially health-threatening food, the sense of smell plays a critical role. We conducted two experiments in order to investigate the role of gender and trait disgust (the temporally stable tendency to experience disgust across different situations) on disgust-related olfactory processing. A total of 40 men and women (Study 1), as well as a group of women divided according to high versus low trait disgust (Study 2, n = 59), were compared with regard to their odor thresholds for carbon disulfide (which smells like spoiled food) and a control stimulus ( n-butanol). The stimuli were rated for experienced arousal, negative valence, and familiarity. In addition, all participants underwent the "Sniffin' Sticks" battery assessing general olfactory performance. We found that women had a lower carbon disulfide threshold and rated this odorant as more unpleasant than men. Trait disgust was neither associated with the detection of the odorant signaling spoilage, nor with general olfactory function. The latter finding questions the role of this personality trait for olfactory-driven food-rejection responses, at least for normosmic individuals.
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Affiliation(s)
- Anne Schienle
- Institute of Psychology, University of Graz, Austria, BioTechMed Graz, Austria
| | - Veronika Schöpf
- Institute of Psychology, University of Graz, Austria, BioTechMed Graz, Austria
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Servello A, Fioretti A, Gualdi G, Di Biasi C, Pittalis A, Sollaku S, Pavaci S, Tortorella F, Fusetti M, Valenti M, Masedu F, Cacciafesta M, Marigliano V, Ettorre E, Pagliarella M. Olfactory Dysfunction, Olfactory Bulb Volume and Alzheimer's Disease: Is There a Correlation? A Pilot Study1. J Alzheimers Dis 2016; 48:395-402. [PMID: 26402003 DOI: 10.3233/jad-150232] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Olfactory dysfunction is present since the earliest stage of Alzheimer's disease (AD). In AD patients, the olfactory impairment has been correlated with atrophy of some structures of the olfactory system, but the role of the olfactory bulb remains unclear. OBJECTIVE The aim of our work is to test if patients suffering from AD exhibit a statistically significant reduction of the average volume of the olfactory bulb (OBV) compared to healthy subjects. METHODS 78 subjects were enrolled in the study and divided into three groups: 28 healthy elderly (22 females, 6 males, mean age 69.4 ± 9.2), 25 patients with mild cognitive impairment (MCI) amnestic type (14 females, 11 males, mean age 74.5 ± 7.5), and 25 mild AD patients (14 females, 11 males, mean age 73.7 ± 6.8). Every subject underwent an MRI study of the olfactory bulb and an olfactory assessment with the Sniffin' Stick Extended Test. RESULTS The statistical analysis showed no correlation between the OBV and MCI or AD. Moreover, olfactory function and OBV were not correlated in any of the three groups. CONCLUSION The reduction of OBV does not seem to represent an index of neuronal damage in the earliest stages of AD.
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Affiliation(s)
- Adriana Servello
- Department of Public Health and Infectious Disease, La Sapienza, University of Rome, Rome, Italy
| | - Alessandra Fioretti
- Department of Applied Clinical Sciences and Biotechnologies, University of L'Aquila, L'Aquila, Italy
| | - Gianfranco Gualdi
- Radiology, Umberto I Hospital, Department of Emergency, La Sapienza, University of Rome, Rome, Italy
| | - Claudio Di Biasi
- Radiology, Umberto I Hospital, Department of Emergency, La Sapienza, University of Rome, Rome, Italy
| | - Angelo Pittalis
- Radiology, Umberto I Hospital, Department of Emergency, La Sapienza, University of Rome, Rome, Italy
| | - Saadi Sollaku
- Radiology, Umberto I Hospital, Department of Emergency, La Sapienza, University of Rome, Rome, Italy
| | - Silva Pavaci
- Department of Applied Clinical Sciences and Biotechnologies, University of L'Aquila, L'Aquila, Italy
| | - Federica Tortorella
- Department of Applied Clinical Sciences and Biotechnologies, University of L'Aquila, L'Aquila, Italy
| | - Marco Fusetti
- Department of Applied Clinical Sciences and Biotechnologies, University of L'Aquila, L'Aquila, Italy
| | - Marco Valenti
- Section of Clinical Epidemiology, Department of Applied Sciences, University of L'Aquila, L'Aquila, Italy
| | - Francesco Masedu
- Section of Clinical Epidemiology, Department of Applied Sciences, University of L'Aquila, L'Aquila, Italy
| | - Mauro Cacciafesta
- Department of Cardiovascular, Respiratory, Nephrologic and Geriatric Sciences, Sapienza, University of Rome, Rome, Italy
| | - Vincenzo Marigliano
- Department of Cardiovascular, Respiratory, Nephrologic and Geriatric Sciences, Sapienza, University of Rome, Rome, Italy
| | - Evaristo Ettorre
- Department of Cardiovascular, Respiratory, Nephrologic and Geriatric Sciences, Sapienza, University of Rome, Rome, Italy
| | - Martina Pagliarella
- Department of Applied Clinical Sciences and Biotechnologies, University of L'Aquila, L'Aquila, Italy
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[Clinical assessment of olfactory performance - why patient interviews are not enough : A report on lessons learned in planning studies with anosmic patients]. HNO 2016; 63:511-5. [PMID: 26112981 DOI: 10.1007/s00106-015-0017-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND AIM Olfactory dysfunction and loss of smell are mostly associated with an immense decrease in the quality of life. The aim of the presented study was to report on particularities in the acquisition of patients with olfactory dysfunction. METHODS During July 2011 and May 2014 we were contacted by 300 potential patients with self-reported loss of smell, 95 (54 female, 41 male, mean age 53) of which were invited for clinical testing after phone interviews. RESULTS Clinical smell testing revealed 46 patients with anosmia, 38 with hyposmia, and 11 with normosmia. Self-assessment of olfactory function only correlated with clinical scores if patients had nearly no olfactory function left. The ability of self-assessment of olfactory function was independent of age or sex. Further, most patients were not able to report on the reason for or the duration of their olfactory dysfunction. DISCUSSION Our report shows that patients with olfactory dysfunction are hardly ever ably to assess their grade of performance reduction. Awareness among patients with a reduced sense of smell is of great general importance, since it can be an indicator of neurodegenerative diseases. This should especially be noted for patients older than 50 who are not able to indicate a reason for their loss of smell.
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Effects of chronic peripheral olfactory loss on functional brain networks. Neuroscience 2015; 310:589-99. [DOI: 10.1016/j.neuroscience.2015.09.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/16/2015] [Accepted: 09/18/2015] [Indexed: 01/18/2023]
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Olfactory training induces changes in regional functional connectivity in patients with long-term smell loss. NEUROIMAGE-CLINICAL 2015; 9:401-10. [PMID: 26594622 PMCID: PMC4590718 DOI: 10.1016/j.nicl.2015.09.004] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 07/25/2015] [Accepted: 09/08/2015] [Indexed: 11/18/2022]
Abstract
Recently, olfactory training has been introduced as a promising treatment for patients with olfactory dysfunction. However, less is known about the neuronal basis and the influence on functional networks of this training. Thus, we aimed to investigate the neuroplasticity of chemosensory perception through an olfactory training program in patients with smell loss. The experimental setup included functional MRI (fMRI) experiments with three different types of chemosensory stimuli. Ten anosmic patients (7f, 3m) and 14 healthy controls (7f, 7m) underwent the same testing sessions. After a 12-week olfactory training period, seven patients (4f, 3m) were invited for follow-up testing using the same fMRI protocol. Functional networks were identified using independent component analysis and were further examined in detail using functional connectivity analysis. We found that anosmic patients and healthy controls initially use the same three networks to process chemosensory input: the olfactory; the somatosensory; and the integrative network. Those networks did not differ between the two groups in their spatial extent, but in their functional connectivity. After the olfactory training, the sensitivity to detect odors significantly increased in the anosmic group, which was also manifested in modifications of functional connections in all three investigated networks. The results of this study indicate that an olfactory training program can reorganize functional networks, although, initially, no differences in the spatial distribution of neural activation were observed.
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[Polish version of the Sniffin' Sticks Test - adaptation and normalization]. Otolaryngol Pol 2014; 68:308-14. [PMID: 25168274 DOI: 10.1016/j.otpol.2014.08.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 07/29/2014] [Accepted: 08/05/2014] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Sniffin' Sticks Test (SST) is a complex smell test, enabling the diagnosis of various aspects of olfactory sensitivity. It is one of the most popular tools for olfactory testing all over the world; however, so far it has not been commonly used in Poland. AIM The presented study had the following aims: assessment of the applicability of the SST in Poland, adaptation of the identification subtest, normalization of the whole battery and comparison of the Polish results to the norms in the original tool. MATERIALS AND METHODS We tested olfactory sensitivity of 281 healthy volunteers aged 18-87 years. We used the full version of the SST (threshold, discrimination and identification subtests). RESULTS The results of the presented study are the modified version of the identification test response questionnaire and clearly defined normative values for the Polish people of different ages. Normative values and results in Poland were not significantly different from the previously reported findings for the original, German tool. Additionally, consistent with previous reports, olfactory sensitivity of the eldest group of the Polish people was lower than performance in younger age groups. CONCLUSIONS The presented findings suggest that the adapted version of the Sniffin' Sticks Test might be used for both medical and research purposes in Poland.
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Antsov E, Silveira-Moriyama L, Kilk S, Kadastik-Eerme L, Toomsoo T, Lees A, Taba P. Adapting the Sniffin' Sticks olfactory test to diagnose Parkinson's disease in Estonia. Parkinsonism Relat Disord 2014; 20:830-3. [PMID: 24792992 DOI: 10.1016/j.parkreldis.2014.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 03/24/2014] [Accepted: 04/07/2014] [Indexed: 02/03/2023]
Abstract
UNLABELLED The aim of the study was to develop a culturally adapted translation of the 12-item smell identification test from Sniffin' Sticks (SS-12) for the Estonian population in order to help diagnose Parkinson's disease (PD). METHODS A standard translation of the SS-12 was created and 150 healthy Estonians were questioned about the smells used as response options in the test. Unfamiliar smells were replaced by culturally familiar options. The adapted SS-12 was applied to 70 controls in all age groups, and thereafter to 50 PD patients and 50 age- and sex-matched controls. RESULTS 14 response options from 48 used in the SS-12 were replaced with familiar smells in an adapted version, in which the mean rate of correct response was 87% (range 73-99) compared to 83% with the literal translation (range 50-98). In PD patients, the average adapted SS-12 score (5.4/12) was significantly lower than in controls (average score 8.9/12), p < 0.0001. A multiple linear regression using the score in the SS-12 as the outcome measure showed that diagnosis and age independently influenced the result of the SS-12. A logistic regression using the SS-12 and age as covariates showed that the SS-12 (but not age) correctly classified 79.0% of subjects into the PD and control category, using a cut-off of <7 gave a sensitivity of 76% and specificity of 86% for the diagnosis of PD. CONCLUSIONS The developed SS-12 cultural adaption is appropriate for testing olfaction in Estonia for the purpose of PD diagnosis.
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Affiliation(s)
- Eva Antsov
- Department of Neurology and Neurosurgery, University of Tartu, Tartu, Estonia
| | - Laura Silveira-Moriyama
- Reta Lila Weston Institute of Neurological Studies, Institute of Neurology, University College London, London, UK; University of Campinas, UNICAMP, Campinas, Brazil; PPGMI, Universidade Federal do Paraná, UFPR, Brazil
| | - Stela Kilk
- Department of Neurology and Neurosurgery, University of Tartu, Tartu, Estonia
| | - Liis Kadastik-Eerme
- Department of Neurology and Neurosurgery, University of Tartu, Tartu, Estonia
| | | | - Andrew Lees
- Reta Lila Weston Institute of Neurological Studies, Institute of Neurology, University College London, London, UK
| | - Pille Taba
- Department of Neurology and Neurosurgery, University of Tartu, Tartu, Estonia.
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