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Suzuki T, Bai Y, Ohno Y. Prevalence and Factors Related to High Risk of Multiple Chemical Sensitivity among Japanese High School Students. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:934. [PMID: 39063510 PMCID: PMC11276707 DOI: 10.3390/ijerph21070934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/04/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024]
Abstract
Multiple chemical sensitivity (MCS) onset in minors can greatly impact learning and future employment. This study investigated the prevalence of MCS and related factors in high school students to determine whether it was the same as in adults. A comprehensive survey was conducted on 80 high schools in Gunma Prefecture, Japan. The survey incorporated the Quick Environmental Exposure and Sensitivity Inventory, as well as items related to allergies, the living environment, and lifestyle. Of the 4630 students analyzed, according to Hojo's cut-off value, 9.0% were classified as high-risk for MCS and 77.9% reported some allergy-like symptoms. Significant factors associated with elevated MCS risk included female sex, having various allergic conditions, having experienced living in a new home or home renovations or extensions, proximity to environmental stressors (freeways, national highway, factories, rubbish dumps, or sources of offensive odors), insufficient physical activity (exercising less than once a week outside of physical education classes), having cold hands and feet, being fatigued, having a bedtime earlier than 11 p.m., and having moderate-frequent subjective stress. Overall, 9.0% of high school students in Japan are at high risk for MCS. Enhancing awareness of MCS-like symptoms and addressing allergies, living environments, and lifestyle habits may mitigate these symptoms.
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Affiliation(s)
- Tamami Suzuki
- Graduate School of Nursing, Dokkyo Medical University, 880 Kitakobayashi, Mibu 321-0293, Japan
| | - Yoshiko Bai
- Institutional Research Center, Dokkyo Medical University, 880 Kitakobayashi, Mibu 321-0293, Japan;
| | - Yuko Ohno
- Graduate School of Engineering, Osaka University, 1-1 Yamadaoka, Suita 565-0871, Japan;
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2
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Golomb BA, Berg BK, Han JH. Susceptibility to radiation adverse effects in veterans with Gulf War illness and healthy civilians. Sci Rep 2024; 14:874. [PMID: 38195674 PMCID: PMC10776672 DOI: 10.1038/s41598-023-50083-7] [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: 08/24/2023] [Accepted: 12/15/2023] [Indexed: 01/11/2024] Open
Abstract
We evaluated whether veterans with Gulf War illness (VGWI) report greater ionizing radiation adverse effects (RadAEs) than controls; whether radiation-sensitivity is tied to reported chemical-sensitivity; and whether environmental exposures are apparent risk factors for reported RadAEs (rRadAEs). 81 participants (41 VGWI, 40 controls) rated exposure to, and rRadAEs from, four radiation types. The relations of RadAE-propensity (defined as the ratio of rRadAEs to summed radiation exposures) to Gulf War illness (GWI) presence and severity, and to reported chemical-sensitivity were assessed. Ordinal logistic regression evaluated exposure prediction of RadAE-propensity in the full sample, in VGWI, and stratified by age and chemical-sensitivity. RadAE-propensity was increased in VGWI (vs. controls) and related to GWI severity (p < 0.01) and chemical-sensitivity (p < 0.01). Past carbon monoxide (CO) exposure emerged as a strong, robust predictor of RadAE-propensity on univariable and multivariable analyses (p < 0.001 on multivariable assessment, without and with adjustment for VGWI case status), retaining significance in age-stratified and chemical-sensitivity-stratified replication analyses. Thus, RadAE-propensity, a newly-described GWI-feature, relates to chemical-sensitivity, and is predicted by CO exposure-both features reported for nonionizing radiation sensitivity, consistent with shared mitochondrial/oxidative toxicity across radiation frequencies. Greater RadAE vulnerability fits an emerging picture of heightened drug/chemical susceptibility in VGWI.
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Affiliation(s)
- Beatrice Alexandra Golomb
- Department of Medicine, UC San Diego School of Medicine, University of California, San Diego, 9500 Gilman Dr. #0995, La Jolla, CA, 92093-0995, USA.
| | - Brinton Keith Berg
- Department of Medicine, UC San Diego School of Medicine, University of California, San Diego, 9500 Gilman Dr. #0995, La Jolla, CA, 92093-0995, USA
| | - Jun Hee Han
- Department of Medicine, UC San Diego School of Medicine, University of California, San Diego, 9500 Gilman Dr. #0995, La Jolla, CA, 92093-0995, USA
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3
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Palmer RF, Dempsey TT, Afrin LB. Chemical Intolerance and Mast Cell Activation: A Suspicious Synchronicity. J Xenobiot 2023; 13:704-718. [PMID: 37987446 PMCID: PMC10660865 DOI: 10.3390/jox13040045] [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: 09/01/2023] [Revised: 10/19/2023] [Accepted: 11/10/2023] [Indexed: 11/22/2023] Open
Abstract
Background: Chemical Intolerance (CI) is characterized by intolerances for chemicals, foods, and drugs with multi-system symptoms. As yet, the biomechanism remains unclear. One study reported converging lines of evidence supporting a substantive association between mast cell activation syndrome (MCAS) and CI. The purpose of this study is to (1) confirm a previous report demonstrating that 60% of MCAS patients report CI and (2) examine the parallels between symptoms and intolerances in CI and MCAS. Methods: Five hundred forty-four MCAS patients were assigned a clinical MCAS score using a validated assessment instrument and were assessed for CI using the validated Quick Environmental Exposure Sensitivity Index. Results: Our outcomes confirm the previously published study where the majority of MCAS patients also have CI. There was a clear overlap between various ICD-10 diagnostic categories and CI symptoms, providing further support for a potential shared mechanism. Conclusions: Exposures to pesticides, volatile organic compounds, combustion products, and mold have previously been reported as initiators of CI. However, until recently, little was known about the biological mechanism involved that could explain the multisystem symptoms associated with CI. This paper addresses a newly identified biomechanism for disease, which may underlie a host of "medically unexplained symptoms" triggered by xenobiotics.
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Affiliation(s)
- Raymond F Palmer
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229-3900, USA
| | - Tania T Dempsey
- AIM Center for Personalized Medicine, Purchase, NY 10577, USA
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4
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Hempel S, Danz M, Robinson KA, Bolshakova M, Rodriguez J, Mears A, Pham C, Yagyu S, Motala A, Tolentino D, Akbari O, Johnston J. Multiple chemical sensitivity scoping review protocol: overview of research and MCS construct. BMJ Open 2023; 13:e072098. [PMID: 37739463 PMCID: PMC10533706 DOI: 10.1136/bmjopen-2023-072098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/16/2023] [Indexed: 09/24/2023] Open
Abstract
INTRODUCTION Multiple chemical sensitivity (MCS) has been characterised by reported adverse responses to environmental exposures of common chemical agents (eg, perfumes, paint, cleaning products and other inhaled or ingested agents) in low doses considered non-toxic for the general population. There is currently no consensus on whether MCS can be established as a distinct disorder. METHODS AND ANALYSIS The scoping review of the literature will be guided by five questions: How is MCS defined and which diagnostic criteria have been proposed? What methods are used to report prevalence and incidence estimates of MCS? What are the characteristics of the body of scientific evidence that addresses whether MCS is a distinct disorder or syndrome? What underlying mechanisms for MCS have been proposed in the scientific literature? Which treatment and management approaches for MCS have been evaluated in empirical research studies? We will conduct a comprehensive search in 14 research databases. Citation screening will be supported by machine learning algorithms. Two independent reviewers will assess eligibility of full-text publications against prespecified criteria. Data abstraction will support concise evidence tables. A formal consultation exercise will elicit input regarding the review results and presentation. The existing research evidence will be documented in a user-friendly visualisation in the format of an evidence map. ETHICS AND DISSEMINATION Determined to be exempt from review (UP-22-00516). Results will be disseminated through a journal manuscript and data will be publicly accessible through an online data repository. REGISTRATION DETAILS The protocol is registered in Open Science Framework (osf.io/4a3wu).
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Affiliation(s)
- Susanne Hempel
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Margie Danz
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Karen A Robinson
- Division of Health Science Informatics, John Hopkins Medicine, Baltimore, Maryland, USA
| | - Maria Bolshakova
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Jesus Rodriguez
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Alanna Mears
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Cindy Pham
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Sachi Yagyu
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Aneesa Motala
- Southern California Evidence Review Center, University of Southern California, Los Angeles, California, USA
| | - Danica Tolentino
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Omid Akbari
- Molecular Microbiology and Immunology, University of Southern California, Los Angeles, California, USA
| | - Jill Johnston
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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5
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Molot J, Sears M, Anisman H. Multiple Chemical Sensitivity: It's time to catch up to the science. Neurosci Biobehav Rev 2023; 151:105227. [PMID: 37172924 DOI: 10.1016/j.neubiorev.2023.105227] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 05/06/2023] [Indexed: 05/15/2023]
Abstract
Multiple chemical sensitivity (MCS) is a complex medical condition associated with low dose chemical exposures. MCS is characterized by diverse features and common comorbidities, including fibromyalgia, cough hypersensitivity, asthma, and migraine, and stress/anxiety, with which the syndrome shares numerous neurobiological processes and altered functioning within diverse brain regions. Predictive factors linked to MCS comprise genetic influences, gene-environment interactions, oxidative stress, systemic inflammation, cell dysfunction, and psychosocial influences. The development of MCS may be attributed to the sensitization of transient receptor potential (TRP) receptors, notably TRPV1 and TRPA1. Capsaicin inhalation challenge studies demonstrated that TRPV1 sensitization is manifested in MCS, and functional brain imaging studies revealed that TRPV1 and TRPA1 agonists promote brain-region specific neuronal variations. Unfortunately, MCS has often been inappropriately viewed as stemming exclusively from psychological disturbances, which has fostered patients being stigmatized and ostracized, and often being denied accommodation for their disability. Evidence-based education is essential to provide appropriate support and advocacy. Greater recognition of receptor-mediated biological mechanisms should be incorporated in laws, and regulation of environmental exposures.
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Affiliation(s)
- John Molot
- Family Medicine, University of Ottawa Faculty of Medicine, Ottawa ON Canada; Ottawa Hospital Research Institute, Ottawa, ON, Canada; Department of Neuroscience, Carleton University, Ottawa Canada.
| | - Margaret Sears
- Family Medicine, University of Ottawa Faculty of Medicine, Ottawa ON Canada; Ottawa Hospital Research Institute, Ottawa, ON, Canada; Department of Neuroscience, Carleton University, Ottawa Canada.
| | - Hymie Anisman
- Family Medicine, University of Ottawa Faculty of Medicine, Ottawa ON Canada; Ottawa Hospital Research Institute, Ottawa, ON, Canada; Department of Neuroscience, Carleton University, Ottawa Canada.
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6
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Claeson AS, Sommar J, Liljelind I. Symptoms and oxylipins in plasma before and after exposure to rooms in which individuals have both experienced and not experienced building-related symptoms - an exploratory study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:2756-2766. [PMID: 34666571 DOI: 10.1080/09603123.2021.1988908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
The aim of this study was to investigate if there are differences in symptom ratings and plasma concentrations of oxylipins as a measure of acute inflammation between individuals with building-related symptoms (BRS) and referents during exposure to rooms where people experienced BRS and rooms where they did not experience BRS. Medically examined individuals with BRS and healthy, age and sex matched referents working in the same building were exposed for 60 min. Ratings of symptoms and collection of blood to measure oxylipins in plasma were performed before and after each exposure. Individuals with BRS reported more symptoms (mostly mucosal) than the referents in the problem rooms and there was a tendency towards a difference between the groups in concentration of metabolites from the cyclooxygenase pathway (COX). The mean reported intensity of symptoms among all participants was also found to be positively correlated with both COX and lipoxygenase (LOX-15) oxylipins in problem rooms.
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Affiliation(s)
| | - Johan Sommar
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Ingrid Liljelind
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
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7
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Fares-Medina S, Díaz-Caro I, García-Montes R, Corral-Liria I, García-Gómez-Heras S. Multiple Chemical Sensitivity Syndrome: First Symptoms and Evolution of the Clinical Picture: Case-Control Study/Epidemiological Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15891. [PMID: 36497963 PMCID: PMC9737200 DOI: 10.3390/ijerph192315891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Multiple chemical sensitivity (MCS) is a chronic condition characterized by the appearance of symptoms caused by exposure to chemical compounds that are tolerable for the general population. It mainly affects middle-aged women. There are very few studies focusing on the most frequent symptoms of MCS considering age groups and gender. The main goal of this study was to find the most frequent symptoms both at the onset of the disease and at the present time describing them by age groups. The QEESI (Quick Environmental Exposure and Sensitivity Inventory) questionnaire, Scale 3 which assesses symptoms and their severity, was used as a diagnostic tool for the disease. A case-control study was conducted with the participation of 210 people. Of the cases, 94.3% were women. The symptoms that most often manifested first were airway and mucous membrane alterations (68.9%). In the development of the disease, we found cognitive alterations (OR = 31.25), heart or chest problems (OR = 22.49), neuromuscular problems (OR = 20.00) and head-related symptomatology (OR = 19.29). Identifying the most frequent pattern of symptoms by age group and sex will allow an early diagnosis of the disease to improve its prognosis and treatment.
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Affiliation(s)
- Sandra Fares-Medina
- Student International Doctoral School, Rey Juan Carlos University (URJC), 28922 Madrid, Spain
| | | | - Rebeca García-Montes
- Student International Doctoral School, Rey Juan Carlos University (URJC), 28922 Madrid, Spain
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8
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Zucco GM, Doty RL. Multiple Chemical Sensitivity. Brain Sci 2021; 12:46. [PMID: 35053790 PMCID: PMC8773480 DOI: 10.3390/brainsci12010046] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/13/2021] [Accepted: 12/16/2021] [Indexed: 01/09/2023] Open
Abstract
Multiple Chemical Sensitivity (MCS), a condition also known as Chemical Sensitivity (CS), Chemical Intolerance (CI), Idiopathic Environmental Illness (IEI) and Toxicant Induced Loss of Tolerance (TILT), is an acquired multifactorial syndrome characterized by a recurrent set of debilitating symptoms. The symptoms of this controversial disorder are reported to be induced by environmental chemicals at doses far below those usually harmful to most persons. They involve a large spectrum of organ systems and typically disappear when the environmental chemicals are removed. However, no clear link has emerged among self-reported MCS symptoms and widely accepted objective measures of physiological dysfunction, and no clear dose-response relationship between exposure and symptom reactions has been observed. In addition, the underlying etiology and pathogenic processes of the disorder remain unknown and disputed, although biologic and psychologic hypotheses abound. It is currently debated whether MCS should be considered a clinical entity at all. Nevertheless, in the last few decades MCS has received considerable scientific and governmental attention in light of the many persons reporting this illness. In this review, we provide a general overview of the history, definition, demographics, prevalence, and etiologic challenges in defining and understanding MCS.
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Affiliation(s)
- Gesualdo M Zucco
- Department of Philosophy, Sociology, Education and Applied Psychology, University of Padova, 35100 Padova, Italy
| | - Richard L Doty
- Smell and Taste Center, Department of Otorhinolaryngology, Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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9
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Insulin Resistance Is Associated with Multiple Chemical Sensitivity in a Danish Population-Based Study-DanFunD. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312654. [PMID: 34886380 PMCID: PMC8657139 DOI: 10.3390/ijerph182312654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/12/2022]
Abstract
Multiple chemical sensitivity (MCS) is a multisystem syndrome, and limited knowledge of its pathophysiology exists. Based on the population-based Danish cohort DanFunD, this study investigated metabolic health in people with MCS compared to individuals who did not have MCS. From 9656 cohort participants aged 18–76 years old, 1.95% were categorized as MCS individuals with comorbid functional somatic disorders (MCS +FSD, n = 188), and 1.13% were categorized as MCS without functional somatic disorders (MCS ÷FSD, n = 109). MCS was characterized based on three criteria: the experience of symptoms upon exposure to common odors and airborne chemicals, symptoms related the central nervous systems and others organ symptoms, and significant impact on every day, social, and occupational life. The remaining study population without MCS or any other functional somatic disorders were regarded as controls. We used adjusted multiple linear regression with link-function to evaluate the associations between lipid and glucose metabolism markers and MCS. We also tested the odds ratio of metabolic syndrome in MCS. Results did not point to statistically significant associations between lipid biomarkers or metabolic syndrome and both MCS groups compared to the controls. We found that MCS individuals may be more insulin resistant and that MCS ÷ FSD may have an impaired glucose metabolism when compared to controls.
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10
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Cannata A, De Luca C, Andolina G, Caccamo D, Currò M, Ferlazzo N, Ientile R, Alibrandi A, Korkina L. Influence of the SOD2 A16V gene polymorphism on alterations of redox markers and erythrocyte membrane fatty acid profiles in patients with multiple chemical sensitivity. Biomed Rep 2021; 15:101. [PMID: 34667598 PMCID: PMC8517758 DOI: 10.3892/br.2021.1477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/15/2021] [Indexed: 11/05/2022] Open
Abstract
Chronically increased oxidative stress has been reported in patients with multiple chemical sensitivity (MCS). Recently, a single nucleotide polymorphism of the gene coding for mitochondrial superoxide dismutase (SOD2), namely the missense substitution A16V (C47>T) resulting in alteration of SOD2 enzyme activity, has been reported to be associated with MCS. However, the influence of SOD2 A16V genetic background on redox status of patients with MCS has not yet been investigated. Here, the results of a retrospective analysis aimed to evaluate the role of the SOD2 A16V polymorphism in the alterations of antioxidant defense markers as well as fatty acid (FA) composition of erythrocyte membranes in 67 patients with MCS matched with 55 healthy controls is reported. The mutated SOD2 V16 variant was observed more frequently in the MCS group compared with the control group, and this difference was statistically significant. The most common genotype in both groups was the heterozygous SOD2 AV16 variant, whereas the mutated SOD2 VV16 variant was more frequently observed in the MCS group, although the difference was not significant. The MCS cohort showed significantly depleted levels of plasma total antioxidant activity, ubiquinol, erythrocyte reduced glutathione and membrane polyunsaturated FA levels, coupled with significant increases in glutathione peroxidase activity, likely accounting for sustained detoxification from lipoperoxides. Notably, the highest levels of oxidative stress were found in patients with MCS bearing the genotype SOD2 AA16, whereas intermediate levels were found in patients bearing the heterozygous AV16 genotype. Healthy subjects bearing the SOD2 AA16 genotype also showed increased oxidative stress compared with carriers of other SOD2 genotypes. Despite the need for further confirmations in larger cohorts, due to MCS population genetic heterogeneity, these preliminary findings suggest that SOD2 defective activity makes certain patients with MCS more susceptible to developing oxidative stress following a chronic daily exposure to pro-oxidant insults.
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Affiliation(s)
- Attilio Cannata
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, University of Messina, Polyclinic Hospital University 'G. Martino', I-98125 Messina, Italy
| | - Chiara De Luca
- R&D Regulatory Affairs Department, Medena AG, CH-8910 Affoltern-am-Albis (ZH), Switzerland
| | - Giulia Andolina
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, University of Messina, Polyclinic Hospital University 'G. Martino', I-98125 Messina, Italy
| | - Daniela Caccamo
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, University of Messina, Polyclinic Hospital University 'G. Martino', I-98125 Messina, Italy
| | - Monica Currò
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, University of Messina, Polyclinic Hospital University 'G. Martino', I-98125 Messina, Italy
| | - Nadia Ferlazzo
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, University of Messina, Polyclinic Hospital University 'G. Martino', I-98125 Messina, Italy
| | - Riccardo Ientile
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, University of Messina, Polyclinic Hospital University 'G. Martino', I-98125 Messina, Italy
| | - Angela Alibrandi
- Department of Economics, Section of Statistical and Mathematical Sciences, University of Messina, I-98124 Messina, Italy
| | - Liudmila Korkina
- Centre of Innovative Biotechnological Investigations Nanolab (CIBI-NANOLAB), 119571 Moscow, Russian Federation
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11
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Palmieri B, Corazzari V, Vadalaʹ M, Vallelunga A, Morales-Medina JC, Iannitti T. The role of sensory and olfactory pathways in multiple chemical sensitivity. REVIEWS ON ENVIRONMENTAL HEALTH 2021; 36:319-326. [PMID: 33070122 DOI: 10.1515/reveh-2020-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
Multiple chemical sensitivity (MCS) is characterised by non-specific and recurring symptoms affecting multiple organs and associated with exposure to chemicals, even at low concentrations, which are, under normal circumstances, harmless to the general population. Symptoms include general discomfort, cardiovascular instability, irritation of the sensory organs, breath disorders, hypersensitivity affecting the skin and epithelial lining of the gut, throat and lungs, anxiety, and learning and memory loss. Chemical intolerance is a key distinguishing feature of MCS, limiting considerably patients' lifestyle with serious social, occupational and economic implications. Since no specific diagnostic markers are currently available for chemical intolerance, the diagnosis relies on clinical symptoms. Despite the formulation of several hypotheses regarding the pathophysiology of MCS, its mechanisms remain undefined. A person-centred care approach, based on multidisciplinary and individualised medical plans, has shown promising results. However, more definite treatment strategies are required. We have reviewed the main experimental studies on MCS pathophysiology, focusing on the brain networks involved, the impact of environmental pollution on the olfactory system and the correlation with other pathologies such as neurodegenerative diseases. Finally, we discuss treatment strategies targeting the olfactory system.
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Affiliation(s)
- Beniamino Palmieri
- Surgical, Medical, Dental and Morphological Sciences Departments with interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- Network of Second Opinion, Modena, Italy
| | | | - Maria Vadalaʹ
- Surgical, Medical, Dental and Morphological Sciences Departments with interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- Network of Second Opinion, Modena, Italy
| | - Annamaria Vallelunga
- Department of Medicine and Surgery, Centre for Neurodegenerative Diseases (CEMAND), University of Salerno, Salerno, Italy
| | - Julio César Morales-Medina
- Centro de Investigación en Reproducción Animal, CINVESTAV- Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Tommaso Iannitti
- Charles River Discovery Research Services UK Limited, Portishead, UK
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12
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Fileccia E, Incensi A, Ventruto F, Rizzo G, Galimberti D, Rao G, Salvi F, Liguori R, Donadio V. Small Fiber Neuropathy in Patients with Chronic Pain and a Previous Diagnosis of Multiple Chemical Sensitivity Syndrome. J Neuropathol Exp Neurol 2021; 80:868-874. [PMID: 34402516 DOI: 10.1093/jnen/nlab082] [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: 12/12/2022] Open
Abstract
Small fiber neuropathy (SFN) is characterized by the involvement of Aδ and C fibers leading to sensory, mainly pain, and/or autonomic symptoms. Multiple chemical sensitivity syndrome (MCS) is an incompletely defined condition characterized by the onset of various symptoms in patients after exposure to several chemical substances. Pain is a common symptom in these patients. In this study, we report the histological and clinical data of a cohort of 21 patients who had been diagnosed as having MCS and who were referred to us with the suspicion of SFN because of chronic pain. All patients underwent neurological clinical examination, (including scales for pain and autonomic disorders), and a skin biopsy. Age-matched healthy subjects were used as controls for the skin biopsies. Nerve conduction studies and serum screening to exclude possible causes of peripheral neuropathy were also performed. Skin biopsies disclosed a somatic SFN in all patients. Although the majority (18 out of 21) of patients also had autonomic symptoms. we found sparing of autonomic innervation in the biopsies. These observations suggest that chronic pain in MCS could be secondary to the presence of somatic SFN, although more data are needed to confirm these observations.
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Affiliation(s)
- Enrico Fileccia
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy
| | - Alex Incensi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy
| | - Francesco Ventruto
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy
| | - Giovanni Rizzo
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy
| | - Damiano Galimberti
- Università di Catania, Dipartimento di Biochimica e Patologia Clinica, Catania, Italy
| | - Giacomo Rao
- Sovrintendenza Sanitaria Centrale Settore Prevenzione Ricerca Direzione Generale INAIL Rome, Italy
| | | | - Rocco Liguori
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy.,Dipartimento di Scienze Biomediche e Neuromotorie, Università di Bologna, Bologna, Italy
| | - Vincenzo Donadio
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy
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13
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Storino V, Muñoz-Ortiz J, Villabona-Martinez V, Villamizar-Sanjuán JD, Rojas-Carabali W, de-la-Torre A. An Unusual Case of Multiple Food Allergies Comorbid with Multiple Chemical Sensitivity: A Case Report. J Asthma Allergy 2021; 14:317-323. [PMID: 33833533 PMCID: PMC8020051 DOI: 10.2147/jaa.s293248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 02/26/2021] [Indexed: 12/23/2022] Open
Abstract
Purpose To report the case of a patient with multiple food allergies comorbid with multiple chemical sensitivity (MCS) who was misdiagnosed on various occasions, resulting in a negative impact on the patient's personal and social life. Case Report We present the case of a 43-year-old Colombian women with multiple food allergies concomitant with MCS. Symptoms started with a mild reaction to insecticides, car exhaust smoke, and perfumes and gradually evolved into a severe reaction to her environment. She also presented recurrent episodes of clinical reactivity to foods and persistent elevated IgE levels, as well as several life-threatening anaphylactic reactions. Alternative and allopathic therapies were applied, but her symptoms persisted. Various diagnoses were made before the definitive diagnosis. Conclusion MCS is an unusual entity of unknown pathophysiology that can, on rare occasions, coexist with food allergies. Early recognition and multidisciplinary treatment are required as these entities have a major impact on the patient's quality of life. We present the first Latin American case regarding the association of the two diseases.
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Affiliation(s)
| | - Juliana Muñoz-Ortiz
- Escuela Barraquer, Research Group, Escuela Superior de Oftalmología, Instituto Barraquer de América, Bogotá, Colombia
| | - Valeria Villabona-Martinez
- Neuroscience Research Group "NeURos", Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
| | - Juan Diego Villamizar-Sanjuán
- Neuroscience Research Group "NeURos", Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
| | - William Rojas-Carabali
- Neuroscience Research Group "NeURos", Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
| | - Alejandra de-la-Torre
- Neuroscience Research Group "NeURos", Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
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Environmental, Neuro-immune, and Neuro-oxidative Stress Interactions in Chronic Fatigue Syndrome. Mol Neurobiol 2020; 57:4598-4607. [PMID: 32761353 DOI: 10.1007/s12035-020-01939-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 05/13/2020] [Indexed: 12/19/2022]
Abstract
Chronic fatigue syndrome/myalgic encephalomyelitis (CFS) is a complex, multisystem disease that is characterized by long-term fatigue, exhaustion, disabilities, pain, neurocognitive impairments, gastrointestinal symptoms, and post-exertional malaise, as well as lowered occupational, educational, and social functions. The clinical and biomarker diagnosis of this disorder is hampered by the lack of validated diagnostic criteria and laboratory tests with adequate figures of merit, although there are now many disease biomarkers indicating the pathophysiology of CFS. Here, we review multiple factors, such as immunological and environmental factors, which are associated with CFS and evaluate current concepts on the involvement of immune and environmental factors in the pathophysiology of CFS. The most frequently reported immune dysregulations in CFS are modifications in immunoglobulin contents, changes in B and T cell phenotypes and cytokine profiles, and decreased cytotoxicity of natural killer cells. Some of these immune aberrations display a moderate diagnostic performance to externally validate the clinical diagnosis of CFS, including the expression of activation markers and protein kinase R (PKR) activity. Associated with the immune aberrations are activated nitro-oxidative pathways, which may explain the key symptoms of CFS. This review shows that viral and bacterial infections, as well as nutritional deficiencies, may further aggravate the immune-oxidative pathophysiology of CFS. Targeted treatments with antioxidants and lipid replacement treatments may have some clinical efficacy in CFS. We conclude that complex interactions between immune and nitro-oxidative pathways, infectious agents, environmental factors, and nutritional deficiencies play a role in the pathophysiology of CFS.
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15
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Cannata A, De Luca C, Korkina LG, Ferlazzo N, Ientile R, Currò M, Andolina G, Caccamo D. The SNP rs2298383 Reduces ADORA2A Gene Transcription and Positively Associates with Cytokine Production by Peripheral Blood Mononuclear Cells in Patients with Multiple Chemical Sensitivity. Int J Mol Sci 2020; 21:ijms21051858. [PMID: 32182774 PMCID: PMC7084623 DOI: 10.3390/ijms21051858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/05/2020] [Accepted: 03/06/2020] [Indexed: 01/06/2023] Open
Abstract
Systemic inflammation and immune activation are striking features of multiple chemical sensitivity (MCS). The rs2298383 SNP of ADORA2A gene, coding for adenosine receptor type 2A (A2AR), has been involved in aberrant immune activation. Here we aimed to assess the prevalence of this SNP in 279 MCS patients and 238 healthy subjects, and its influence on ADORA2A, IFNG and IL4 transcript amounts in peripheral blood mononuclear cells of randomly selected patients (n = 70) and controls (n = 66) having different ADORA2A genotypes. The ADORA2A rs2298383 TT mutated genotype, significantly more frequent in MCS patients than in controls, was associated with a three-fold increased risk for MCS (O.R. = 2.86; C.I. 95% 1.99–4.12, p < 0.0001), while the CT genotype, highly prevalent among controls, resulted to be protective (O.R. = 0.33; C.I. 95% 0.224–0.475, p < 0.0001). Notably, ADORA2A mRNA levels were significantly lower, while IFNG, but not IL4, mRNA levels were significantly higher in TT MCS patients compared with controls. A significant negative correlation was found between ADORA2A and both IFNG and IL4, while a significant positive correlation was found between IFNG and IL4. These findings suggest that A2AR defective signaling may play a relevant role in PBMC shift towards a pro-inflammatory phenotype in MCS patients.
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Affiliation(s)
- Attilio Cannata
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, Messina 989125, Italy; (A.C.); (N.F.); (R.I.); (M.C.); (G.A.)
| | - Chiara De Luca
- R & D Regulatory Affairs Department, Medena AG, Affoltern-am-Albis (ZH) CH-8910, Switzerland;
| | - Liudmila G. Korkina
- Centre of Innovative Biotechnological Investigations Nanolab (CIBI-NANOLAB), Moscow 119571, Russia;
| | - Nadia Ferlazzo
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, Messina 989125, Italy; (A.C.); (N.F.); (R.I.); (M.C.); (G.A.)
| | - Riccardo Ientile
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, Messina 989125, Italy; (A.C.); (N.F.); (R.I.); (M.C.); (G.A.)
| | - Monica Currò
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, Messina 989125, Italy; (A.C.); (N.F.); (R.I.); (M.C.); (G.A.)
| | - Giulia Andolina
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, Messina 989125, Italy; (A.C.); (N.F.); (R.I.); (M.C.); (G.A.)
| | - Daniela Caccamo
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, Messina 989125, Italy; (A.C.); (N.F.); (R.I.); (M.C.); (G.A.)
- Correspondence:
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16
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Harter K, Hammel G, Fleming M, Traidl-Hoffmann C. Multiple chemical sensitivity (MCS) - a guide for dermatologists on how to manage affected individuals. J Dtsch Dermatol Ges 2020; 18:119-130. [PMID: 32026633 DOI: 10.1111/ddg.14027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/13/2020] [Indexed: 02/03/2023]
Abstract
Multiple chemical sensitivity (MCS) is a condition characterized by a subjectively perceived increase in sensitivity to environmental chemicals. Individuals affected report a wide variety of nonspecific complaints, and frequently attribute cutaneous and mucosal symptoms to chemical exposures. Dermatologists should therefore be familiar with this condition. MCS is a diagnosis of exclusion. Other causes for the patients' symptoms should be ruled out by routine laboratory tests, allergy tests and, if indicated, monitoring for toxic (environmental) substances. The primary job of dermatologists is to rule out skin diseases or hypersensitivities as possible causes of the complaints. Interdisciplinary patient management is essential, especially in severe cases in which those affected have problems coping with everyday life. Relevant specialties in this context include environmental medicine, psychosomatic medicine as well as occupational and social medicine. Cutaneous symptoms are usually addressed with symptomatic treatment using basic skin care products. There are currently no evidence-based treatment recommendations for MCS. It is crucial that MCS patients be protected from unnecessary treatments and thus from mental, social and financial strain. In addition to medical skills, managing MCS patients requires communicative and psychosocial competence in particular. Physicians involved in the treatment will benefit from training in psychotherapy. Irrespective of the mechanisms that lead to MCS, diagnosis and treatment of this condition require an actively supportive attitude towards these patients, a good doctor-patient relationship and interdisciplinary cooperation.
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Affiliation(s)
- Katharina Harter
- Chair and Institute of Environmental Medicine, UNIKA-T, Medical Faculty of the Technical University Munich and Helmholtz Center Munich, Augsburg, Germany.,Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Gertrud Hammel
- Chair and Institute of Environmental Medicine, UNIKA-T, Medical Faculty of the Technical University Munich and Helmholtz Center Munich, Augsburg, Germany.,Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Megan Fleming
- Chair and Institute of Environmental Medicine, UNIKA-T, Medical Faculty of the Technical University Munich and Helmholtz Center Munich, Augsburg, Germany.,Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.,Outpatient Clinic for Environmental Medicine at Augsburg University Medical Center, Augsburg, Germany
| | - Claudia Traidl-Hoffmann
- Chair and Institute of Environmental Medicine, UNIKA-T, Medical Faculty of the Technical University Munich and Helmholtz Center Munich, Augsburg, Germany.,Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.,Outpatient Clinic for Environmental Medicine at Augsburg University Medical Center, Augsburg, Germany
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17
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Harter K, Hammel G, Fleming M, Traidl-Hoffmann C. Multiple Chemikaliensensibilität (MCS) – Ein Leitfaden für die Dermatologie zum Umgang mit den Betroffenen. J Dtsch Dermatol Ges 2020; 18:119-131. [PMID: 32026641 DOI: 10.1111/ddg.14027_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/13/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Katharina Harter
- Lehrstuhl und Institut für Umweltmedizin, UNIKA-T, Medizinische Fakultät der Technischen Universität München und Helmholtzzentrum München, Augsburg, Deutschland.,Christine-Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Schweiz.,Professur für Soziologie mit Schwerpunkt Gesundheitsforschung, Philosophisch-Sozialwissenschaftliche Fakultät, Universität Augsburg, Augsburg, Deutschland
| | - Gertrud Hammel
- Lehrstuhl und Institut für Umweltmedizin, UNIKA-T, Medizinische Fakultät der Technischen Universität München und Helmholtzzentrum München, Augsburg, Deutschland.,Christine-Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Schweiz
| | - Megan Fleming
- Lehrstuhl und Institut für Umweltmedizin, UNIKA-T, Medizinische Fakultät der Technischen Universität München und Helmholtzzentrum München, Augsburg, Deutschland.,Christine-Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Schweiz.,Hochschulambulanz für Umweltmedizin, Universitätsklinikum Augsburg, Augsburg, Deutschland
| | - Claudia Traidl-Hoffmann
- Lehrstuhl und Institut für Umweltmedizin, UNIKA-T, Medizinische Fakultät der Technischen Universität München und Helmholtzzentrum München, Augsburg, Deutschland.,Christine-Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Schweiz.,Hochschulambulanz für Umweltmedizin, Universitätsklinikum Augsburg, Augsburg, Deutschland
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18
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Quarato M, De Maria L, Caputi A, Cavone D, Cannone ESS, Mansi F, Gatti MF, Vimercati L. A case report of idiopathic environmental intolerance: A controversial and current issue. Clin Case Rep 2020; 8:79-85. [PMID: 31998492 PMCID: PMC6982481 DOI: 10.1002/ccr3.2535] [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: 09/12/2019] [Accepted: 10/21/2019] [Indexed: 11/13/2022] Open
Abstract
In this case of idiopathic environmental intolerance, a little known disease characterized by many symptoms of irritation due to exposure to several toxic compounds, genetic analysis could be helpful in case of differential diagnosis issue.
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Affiliation(s)
- Marco Quarato
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Luigi De Maria
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Antonio Caputi
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Domenica Cavone
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Enza Sabrina Silvana Cannone
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Francesca Mansi
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Maria Franca Gatti
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
| | - Luigi Vimercati
- Interdisciplinary Department of MedicineOccupational Medicine “B. Ramazzini”University of Bari Medical SchoolBariItaly
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19
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Micarelli A, Cormano A, Caccamo D, Alessandrini M. Olfactory-Related Quality of Life in Multiple Chemical Sensitivity: A Genetic-Acquired Factors Model. Int J Mol Sci 2019; 21:ijms21010156. [PMID: 31881664 PMCID: PMC6981591 DOI: 10.3390/ijms21010156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 12/19/2022] Open
Abstract
Genetic polymorphisms as well as environmental exposures to chemical compounds, iatrogenic, psychological, and physical trauma may play a pathophysiological role in multiple chemical sensitivity (MCS) olfactory complaints, given that xenobiotic metabolism is influenced by sequence variations in genes of metabolizing enzymes. Thus, the aim of the present study was to depict-by means of multiple regression analysis-how different genetic conditions, grouped according to their function as well as clinical background and environmental exposure may interfere with those olfactory complaints referred by MCS patients. Therefore, MCS patients after gene polymorphism sequencing, the olfactory-related quality of life score-calculated by means of the Questionnaire of Olfactory Disorder in forty-six MCS patients-have been found to significantly rely on the phase I and II enzymes score and exposure to previous compounds and surgical treatments. The present work-implementing for the first time a genetic-acquired factors model on a regression analysis-further reinforces those theories, positing MCS as a complex, multifactorial, disease in which the genetic risk related to phase I and II enzymes involved in xenobiotic detoxification, olfactory, and neurodegenerative diseases play a necessary, but probably not sufficient role, along the pathophysiological route of the disease.
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Affiliation(s)
- Alessandro Micarelli
- Institute of Mountain Emergency Medicine, EURAC Research, I-39100 Bolzano, Italy
- ITER Center for Balance and Rehabilitation Research (ICBRR), 02032 Rome, Italy
- Correspondence:
| | | | - Daniela Caccamo
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, 98124 Messina, Italy;
| | - Marco Alessandrini
- Department of Clinical Sciences and Translational Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy;
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20
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Multiple Chemical Sensitivity: Review of the State of the Art in Epidemiology, Diagnosis, and Future Perspectives. J Occup Environ Med 2019; 60:138-146. [PMID: 29111991 PMCID: PMC5794238 DOI: 10.1097/jom.0000000000001215] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Systematic bibliography analysis of about the last 17 years on multiple chemical sensitivity (MCS) was carried out in order to detect new diagnostic and epidemiological evidence. The MCS is a complex syndrome that manifests as a result of exposure to a low level of various common contaminants. The etiology, diagnosis, and treatment are still debated among researchers. METHOD Querying PubMed, Web of Science, Scopus, Cochrane library, both using some specific MESH terms combined with MESH subheadings and through free search, even by Google. RESULTS The studies were analyzed by verifying 1) the typology of study design; 2) criteria for case definition; 3) presence of attendances in the emergency departments and hospital admissions, and 4) analysis of the risk factors. OUTLOOK With this review, we give some general considerations and hypothesis for possible future research.
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21
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Pigatto PD, Guzzi G. Prevalence and risk factors for multiple chemical sensitivity in Australia. Prev Med Rep 2019; 14:100856. [PMID: 31193443 PMCID: PMC6527960 DOI: 10.1016/j.pmedr.2019.100856] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 03/26/2019] [Accepted: 03/28/2019] [Indexed: 11/29/2022] Open
Abstract
The author found that the prevalence of diagnosed multiple chemical sensitivity (MCS) in Australia was 6.5%. No mention is made about the role of exposure to metals. Exposure to metallic elements has been associated with MCS. Metals are a well-known primary risk factor for idiopathic environmental intolerance. It is important that the medical approach designed to reduce the risk factors for MCS includes preventive strategies of metal exposure.
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Affiliation(s)
- Paolo D Pigatto
- Department of Biomedical, Surgical and Dental Sciences, Unit of Dermatology, IRCCS Istituto Ortopedico Galeazzi, University of Milan, Via Riccardo Galeazzi 4, 20161 Milan, Italy
| | - Gianpaolo Guzzi
- Italian Association for Metals and Biocompatibility Research - A.I.R.M.E.B., Via Antonio Banfi 4, 20122 Milan, Italy
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22
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Pedro A, Martínez D, Pontigo J, Vargas-Lagos C, Hawes C, Wadsworth S, Morera F, Vargas-Chacoff L, Yáñez A. Transcriptional activation of genes involved in oxidative stress in Salmo salar challenged with Piscirickettsia salmonis. Comp Biochem Physiol B Biochem Mol Biol 2019; 229:18-25. [DOI: 10.1016/j.cbpb.2018.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/06/2018] [Accepted: 12/15/2018] [Indexed: 01/18/2023]
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23
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Claeson AS, Gouveia-Figueira S, Stenlund H, Johansson AI. A standardized protocol for comparable analysis of GSH/GSSG by UHPLC-ESI-MSMS for human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1104:67-72. [DOI: 10.1016/j.jchromb.2018.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/15/2018] [Accepted: 11/06/2018] [Indexed: 11/25/2022]
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Alsaad AM, Al-Arifi MN, Maayah ZH, Attafi IM, Alanazi FE, Belali OM, Alhoshani A, Asiri YA, Korashy HM. Genotoxic impact of long-term cigarette and waterpipe smoking on DNA damage and oxidative stress in healthy subjects. Toxicol Mech Methods 2018; 29:119-127. [DOI: 10.1080/15376516.2018.1528650] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Abdulaziz M. Alsaad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed N. Al-Arifi
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Zaid H. Maayah
- Cardiovascular Research Centre, Department of Pediatrics and Medicine, Mazankowski Alberta Heart Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Ibraheem M. Attafi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Fawaz E. Alanazi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Osamah M. Belali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ali Alhoshani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Yousif A. Asiri
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hesham M. Korashy
- Department of Pharmaceutical Sciences, College of Pharmacy, Qatar University, Doha, Qatar
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Watai K, Fukutomi Y, Hayashi H, Kamide Y, Sekiya K, Taniguchi M. Epidemiological association between multiple chemical sensitivity and birth by caesarean section: a nationwide case-control study. Environ Health 2018; 17:89. [PMID: 30547814 PMCID: PMC6295056 DOI: 10.1186/s12940-018-0438-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Multiple chemical sensitivity (MCS) is characterized by recurrent nonspecific symptoms that are attributed to exposure to trace levels of environmental agents. Although the clinical symptoms of MCS have been described in several studies, the risk factors for this condition remain unclear. Our aim was to clarify the risk factors for MCS and the association between MCS and birth by caesarean section. METHODS We conducted a nationwide case-control study of Japanese individuals (aged 20-65 years) with physician-diagnosed MCS (183 cases) and without MCS (345 controls). The study participants were selected from among 150,000 people in a web-based research panel with approximately 1,000,000 registrants. They completed an online survey including questions on their sociodemographic characteristics, birth history (i.e., birth by caesarean section), and other potential risk factors for MCS. Multivariate logistic regression analysis was employed to determine the association between sociodemographic characteristics and the risk of MCS. RESULTS The proportions of case and control subjects who were born by caesarean section were 39.9 and 7.0%, respectively. The association between birth by caesarean section and MCS was significant even after adjusting for potential confounders (adjusted odds ratio: 6.15; 95% confidence interval: 3.13-12.1). A history of agricultural work, mouth breathing, ≥11 vaccinations in the past 10 years, and residing in a new home (< 1 year-old) ≥3 times were also significantly associated with MCS. CONCLUSION Our data indicate an epidemiological link between MCS and birth by caesarean section. Moreover, we show that factors other than chemical exposure may be associated with the development of MCS.
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Affiliation(s)
- Kentaro Watai
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan.
- Course of Allergy and Clinical Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Yuma Fukutomi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan
- Course of Allergy and Clinical Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroaki Hayashi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan
| | - Yosuke Kamide
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan
| | - Kiyoshi Sekiya
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan
| | - Masami Taniguchi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan
- Course of Allergy and Clinical Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Steinemann A. Prevalence and effects of multiple chemical sensitivities in Australia. Prev Med Rep 2018; 10:191-194. [PMID: 29868366 PMCID: PMC5984225 DOI: 10.1016/j.pmedr.2018.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/05/2018] [Accepted: 03/09/2018] [Indexed: 12/19/2022] Open
Abstract
Multiple chemical sensitivities (MCS) is a medical condition associated with exposure to common chemical pollutants. The aims of this study are to assess the prevalence of MCS, its overlaps with asthma and fragrance sensitivity, and its health and societal effects in Australia. Data were collected in June 2016 using an on-line survey with a representative national sample (N = 1098) of adults (ages 18–65) in Australia. Results found that, across the country, 6.5% report medically diagnosed MCS, 18.9% report chemical sensitivity (being unusually sensitive to everyday chemicals and chemically formulated products), and 19.9% either or both. Among people with MCS, 74.6% also have diagnosed asthma or an asthma-like condition, and 91.5% have fragrance sensitivity, reporting health problems (such as migraine headaches) when exposed to fragranced consumer products (such as air fresheners and cleaning supplies). In addition, among people with MCS, 77.5% are prevented from access to places because of fragranced products, 52.1% lost workdays or a job in the past year due to fragranced product exposure in the workplace, and 55.4% report health effects considered potentially disabling. Results indicate that MCS is a widespread disease, affecting an estimated 1 million adult Australians, with chemical sensitivity affecting another 2 million. Reducing chemical exposure to problematic sources, such as fragranced consumer products, is critical to reduce adverse effects.
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Affiliation(s)
- Anne Steinemann
- Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia.,College of Science, Technology and Engineering, James Cook University, Townsville, Queensland 4811, Australia.,Climate, Atmospheric Sciences, and Physical Oceanography, Scripps Institution of Oceanography, University of California, La Jolla, San Diego, CA 92093, USA
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Rainham D, Brown P, Sampalli T. Spatial variation in risk for physician diagnosed environmental sensitivity. Spat Spatiotemporal Epidemiol 2017; 23:35-45. [PMID: 29108689 DOI: 10.1016/j.sste.2017.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 07/20/2017] [Accepted: 07/29/2017] [Indexed: 10/19/2022]
Abstract
Multiple chemical sensitivity (MCS) is a chronic condition characterized by recurring and severe symptoms triggered by exposures to low levels of toxicants or anthropogenic pollution. This study investigated the spatial structure of MCS incidence and estimated the contribution of socio-economic deprivation to variations in rates of MCS at the community level in Nova Scotia, Canada. Patient data were used to calculate cumulative incidence rate ratios for treated multiple chemical sensitivities. Poisson regression with a spatially autoregressive random effect was employed to assess spatial variation in MCS. Odds of MSC incidence are greatest among patients from the highest socioeconomic category using the most socioeconomically deprived category as reference (OR: 1.94, CI [2.5-95%] 1.45-2.56). No discernable spatial pattern for MCS risk was evident after controlling for known risk factors. This is the first study to investigate spatial variations in cumulative incidence of multiple chemical sensitivities. The socioeconomic status of the community in which patients live has a significant influence on the geographic patterns of MCS. Future research will include a smartphone application to assess positional and temporal information on environmental exposures to further explain MCS prevalence.
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Affiliation(s)
- Daniel Rainham
- Healthy Populations Institute, Dalhousie University, 1318 Robie Street, Halifax, Nova Scotia B3H 3E2, Canada.
| | - Patrick Brown
- Department of Statistical Sciences, University of Toronto, 100 St. George St., Toronto, Ontario M5S 3G3, Canada.
| | - Tara Sampalli
- Primary Health Care, Nova Scotia Health Authority, 6960 Mumford Road, Suite 265, Halifax, Nova Scotia B3L 4P1, Canada.
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Meristem Plant Cells as a Sustainable Source of Redox Actives for Skin Rejuvenation. Biomolecules 2017; 7:biom7020040. [PMID: 28498360 PMCID: PMC5485729 DOI: 10.3390/biom7020040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/03/2017] [Accepted: 05/08/2017] [Indexed: 12/30/2022] Open
Abstract
Recently, aggressive advertisement claimed a “magic role” for plant stem cells in human skin rejuvenation. This review aims to shed light on the scientific background suggesting feasibility of using plant cells as a basis of anti-age cosmetics. When meristem cell cultures obtained from medicinal plants are exposed to appropriate elicitors/stressors (ultraviolet, ultrasound ultraviolet (UV), ultrasonic waves, microbial/insect metabolites, heavy metals, organic toxins, nutrient deprivation, etc.), a protective/adaptive response initiates the biosynthesis of secondary metabolites. Highly bioavailable and biocompatible to human cells, low-molecular weight plant secondary metabolites share structural/functional similarities with human non-protein regulatory hormones, neurotransmitters, pigments, polyamines, amino-/fatty acids. Their redox-regulated biosynthesis triggers in turn plant cell antioxidant and detoxification molecular mechanisms resembling human cell pathways. Easily isolated in relatively large quantities from contaminant-free cell cultures, plant metabolites target skin ageing mechanisms, above all redox imbalance. Perfect modulators of cutaneous oxidative state via direct/indirect antioxidant action, free radical scavenging, UV protection, and transition-metal chelation, they are ideal candidates to restore photochemical/redox/immune/metabolic barriers, gradually deteriorating in the ageing skin. The industrial production of plant meristem cell metabolites is toxicologically and ecologically sustainable for fully “biological” anti-age cosmetics.
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Tuuminen T, Rinne KS. Severe Sequelae to Mold-Related Illness as Demonstrated in Two Finnish Cohorts. Front Immunol 2017; 8:382. [PMID: 28421079 PMCID: PMC5377931 DOI: 10.3389/fimmu.2017.00382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 03/17/2017] [Indexed: 11/13/2022] Open
Abstract
The presence of toxic indoor molds with accompanying bacterial growth is clearly detrimental to human health. The pathophysiological and toxicological effects of toxins and structural components of molds and bacteria have been clarified in experiments conducted in tissue culture and animals, and there is convincing epidemiologic evidence; nonetheless their implications for human health are either ignored or denied, at least in Finland. In this communication, we describe two cohorts suffering severe sequelae to mold-related illness. One cohort is a nine-member family with pets that moved into a new house, which soon proved to be infested with pathogenic molds. The other cohort consists of 30 teachers and 50 students from a mold-infested school building. The first cohort experienced a plethora of mucosal irritation, neurological, skin, allergic, and other symptoms, with all family members ultimately developing a multiple chemical syndrome. In the second cohort, we detected a greatly elevated prevalence of autoimmune conditions and malignancies. We claim that mold-related illness exists in multiple facets; if not simply a transient mucosal irritation or even an increased risk of asthma onset or its exacerbation. We propose a scheme to explain the natural course of the mold-related illness. We recommend that future studies should combine data from, e.g., cancer, autoimmune, and endocrine disorder registers and neurological and mental health or neuropsychological registers with mold-exposed individuals being monitored for prolonged follow-up times.
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Affiliation(s)
- Tamara Tuuminen
- Medicum, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
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Korashy HM, Attafi IM, Famulski KS, Bakheet SA, Hafez MM, Alsaad AMS, Al-Ghadeer ARM. Gene expression profiling to identify the toxicities and potentially relevant human disease outcomes associated with environmental heavy metal exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 221:64-74. [PMID: 27916491 DOI: 10.1016/j.envpol.2016.10.058] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 10/09/2016] [Accepted: 10/19/2016] [Indexed: 06/06/2023]
Abstract
Heavy metals are the most commonly encountered toxic substances that increase susceptibility to various diseases after prolonged exposure. We have previously shown that healthy volunteers living near a mining area had significant contamination with heavy metals associated with significant changes in the expression of some detoxifying genes, xenobiotic metabolizing enzymes, and DNA repair genes. However, alterations of most of the molecular target genes associated with diseases are still unknown. Thus, the aims of this study were to (a) evaluate the gene expression profile and (b) identify the toxicities and potentially relevant human disease outcomes associated with long-term human exposure to environmental heavy metals in mining area using microarray analysis. For this purpose, 40 healthy male volunteers who were residents of a heavy metal-polluted area (Mahd Al-Dhahab city, Saudi Arabia) and 20 healthy male volunteers who were residents of a non-heavy metal-polluted area were included in the study. Total RNA was isolated from whole blood using PAXgene Blood RNA tubes and then reversed transcribed and hybridized to the gene array using the Affymetrix U219 GeneChip. Microarray analysis showed about 2129 genes were identified and differentially altered, among which a shared set of 425 genes was differentially expressed in the heavy metal-exposed groups. Ingenuity pathway analysis revealed that the most altered gene-regulated diseases in heavy metal-exposed groups included hematological and developmental disorders and mostly renal and urological diseases. Quantitative real-time polymerase chain reaction closely matched the microarray data for some genes tested. Importantly, changes in gene-related diseases were attributed to alterations in the genes encoded for protein synthesis. Renal and urological diseases were the diseases that were most frequently associated with the heavy metal-exposed group. Therefore, there is a need for further studies to validate these genes, which could be used as early biomarkers to prevent renal injury.
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Affiliation(s)
- Hesham M Korashy
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
| | - Ibraheem M Attafi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Konrad S Famulski
- Alberta Transplant Applied Genomics Centre, University of Alberta, Edmonton, AB T6G 2S2, Canada
| | - Saleh A Bakheet
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohammed M Hafez
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdulaziz M S Alsaad
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdul Rahman M Al-Ghadeer
- Central Laboratory, Research Center, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Greiner A, Drexler H. Unnecessary Investigations in Environmental Medicine. DEUTSCHES ARZTEBLATT INTERNATIONAL 2016; 113:773-780. [PMID: 27989277 PMCID: PMC5169161 DOI: 10.3238/arztebl.2016.0773] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 06/15/2016] [Accepted: 08/30/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND Patients in environmental medicine often want a thorough diagnostic evaluation of nonspecific symptoms. Unconventional testing, as well as conventional testing for indications other than the established ones, can lead to false diagnoses and, in turn, to substantial emotional, social, and financial harm. The goal of this single-center study was to assess inappropriate diagnostic testing among the patients of a specialized university outpatient clinic for environmental medicine. METHODS The charts of 653 consecutive outpatients seen in the institute and outpatient clinic of occupational, social, and environmental medicine in Erlangen from 2010 to 2015 were evaluated, and inappropriate diagnostic tests were assessed. RESULTS 9% of the patients had received at least one inappropriate diagnostic test. The most common one was an inappropriate heavy-metal test (26%), followed by an inappropriately ordered hair analysis (15%) and biomonitoring in the blood or urine with an erroneous choice of the testing matrix or an erroneous interpretation of the findings (15%). Biomonitoring performed by us did not confirm the suspected environmental diagnosis in any case. Laboratory values exceeding the normal limits were rarer among these patients than in the patients for whom we considered biomonitoring to be indicated without any pretesting. CONCLUSION An appreciable number of patients in environmental medicine were subjected to inappropriate diagnostic testing. When this happens, proper testing often needs to be done thereafter in order to confirm or refute the findings. This phenomenon should be more thoroughly assessed and quantified.
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Affiliation(s)
- Annette Greiner
- Institute and Outpatient Clinic of Occupational, Social, and Environmental Medicine, University of Erlangen-Nuremberg
| | - Hans Drexler
- Institute and Outpatient Clinic of Occupational, Social, and Environmental Medicine, University of Erlangen-Nuremberg
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Mast cell activation disease and the modern epidemic of chronic inflammatory disease. Transl Res 2016; 174:33-59. [PMID: 26850903 DOI: 10.1016/j.trsl.2016.01.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 12/18/2022]
Abstract
A large and growing portion of the human population, especially in developed countries, suffers 1 or more chronic, often quite burdensome ailments which either are overtly inflammatory in nature or are suspected to be of inflammatory origin, but for which investigations to date have failed to identify specific causes, let alone unifying mechanisms underlying the multiple such ailments that often afflict such patients. Relatively recently described as a non-neoplastic cousin of the rare hematologic disease mastocytosis, mast cell (MC) activation syndrome-suspected to be of greatly heterogeneous, complex acquired clonality in many cases-is a potential underlying/unifying explanation for a diverse assortment of inflammatory ailments. A brief review of MC biology and how aberrant primary MC activation might lead to such a vast range of illness is presented.
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Pacharra M, Kleinbeck S, Schäper M, Blaszkewicz M, van Thriel C. Multidimensional assessment of self-reported chemical intolerance and its impact on chemosensory effects during ammonia exposure. Int Arch Occup Environ Health 2016; 89:947-59. [DOI: 10.1007/s00420-016-1134-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 04/21/2016] [Indexed: 11/28/2022]
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Bonde E, Andersson E, Brisman J, Eklöf M, Ringsberg KC, Torén K. Dissociation of dysfunctional breathing and odour intolerance among adults in a general-population study. CLINICAL RESPIRATORY JOURNAL 2016; 7:176-82. [PMID: 22621613 DOI: 10.1111/j.1752-699x.2012.00299.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Many patients present with a mixture of respiratory problems such as shortness of breath, heavy breathing, coughing and odour intolerance. If these patients are diagnosed as asthma, it might sometimes be a false diagnosis. Concepts such as sensory hyperreactivity, hyperventilation, asthma-like symptoms, odour intolerance and dysfunctional breathing are used to refer to these patients. Non-respiratory symptoms such as headache, fatigue and bloating are sometimes also part of the clinical picture. Our aim was to use factor analysis to increase our understanding of breathing-related symptoms in a general-population frame. METHODS A respiratory questionnaire was answered by 10 108 subjects in a general-population sample. Items aiming to identify individuals with breathing-related symptoms and asthma were included. We used factor analysis with Varimax rotation to extract discriminatory components (i.e. groups of symptoms), based on the questionnaire items. The aim was to find groups of items (factors) as distinct as possible, still allowing overlap and showing the importance of each item in the separated factor. RESULTS Five distinct factors were identified in the factor analysis, representing dysfunctional breathing, odour intolerance, asthma, bronchitis and a group with mixed symptoms, respectively. These five factors explained 55% of the variance. CONCLUSIONS Based on our findings, we conclude that non-asthmatic breathing-related symptoms may be separated into at least two categories in a general population, odour intolerance and dysfunctional breathing. These two categories seem to be two distinct groups of subjects with breathing-related symptoms and may represent different clinical entities separated from asthma and bronchitis.
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Affiliation(s)
- Ellen Bonde
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden.
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Bijlsma N, Cohen MM. Environmental Chemical Assessment in Clinical Practice: Unveiling the Elephant in the Room. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:181. [PMID: 26848668 PMCID: PMC4772201 DOI: 10.3390/ijerph13020181] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/19/2016] [Accepted: 01/27/2016] [Indexed: 02/06/2023]
Abstract
A growing body of evidence suggests chemicals present in air, water, soil, food, building materials and household products are toxicants that contribute to the many chronic diseases typically seen in routine medical practice. Yet, despite calls from numerous organisations to provide clinicians with more training and awareness in environmental health, there are multiple barriers to the clinical assessment of toxic environmental exposures. Recent developments in the fields of systems biology, innovative breakthroughs in biomedical research encompassing the "-omics" fields, and advances in mobile sensing, peer-to-peer networks and big data, provide tools that future clinicians can use to assess environmental chemical exposures in their patients. There is also a need for concerted action at all levels, including actions by individual patients, clinicians, medical educators, regulators, government and non-government organisations, corporations and the wider civil society, to understand the "exposome" and minimise the extent of toxic exposures on current and future generations. Clinical environmental chemical risk assessment may provide a bridge between multiple disciplines that uses new technologies to herald in a new era in personalised medicine that unites clinicians, patients and civil society in the quest to understand and master the links between the environment and human health.
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Affiliation(s)
- Nicole Bijlsma
- School of Health Sciences, RMIT University, Bundoora, Victoria 3083, Australia.
| | - Marc M Cohen
- School of Health Sciences, RMIT University, Bundoora, Victoria 3083, Australia.
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Fell AKM, Eikeland R, Aaseth JO. En kvinne i 30-årene med hoste, tremor, uro og synsforstyrrelser. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2016; 136:1233-5. [DOI: 10.4045/tidsskr.15.0998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Gugliandolo A, Gangemi C, Calabrò C, Vecchio M, Di Mauro D, Renis M, Ientile R, Currò M, Caccamo D. Assessment of glutathione peroxidase-1 polymorphisms, oxidative stress and DNA damage in sensitivity-related illnesses. Life Sci 2015; 145:27-33. [PMID: 26685757 DOI: 10.1016/j.lfs.2015.12.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/12/2015] [Accepted: 12/11/2015] [Indexed: 01/07/2023]
Abstract
AIMS Oxidative stress increase is a key event for development of sensitivity-related illnesses (SRIs). The aim of this work was to evaluate the influence of a genetic variant in the antioxidant enzyme glutathione peroxidase (GPx1) on oxidative stress development in SRIs. MAIN METHODS GPx1 rs1800668 genotype, as well as glutathione, ubiquinone, and DNA damage were assessed in 34 SRI patients and 36 healthy subjects. KEY FINDINGS Total glutathione, reduced/oxidized glutathione, and ubiquinone were significantly decreased in cases compared with controls, while DNA fragmentation was significantly increased in patients. However, these differences were not associated to GPx1 genetic background. SIGNIFICANCE GPx1 rs1800668 polymorphism does not play a major role in SRI-related oxidative stress development.
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Affiliation(s)
- Agnese Gugliandolo
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Chiara Gangemi
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Carlo Calabrò
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Mercurio Vecchio
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Debora Di Mauro
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Marcella Renis
- Department of Drug Sciences, University of Catania, Viale Andrea Doria, 95100 Catania, Italy
| | - Riccardo Ientile
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Monica Currò
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy
| | - Daniela Caccamo
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, Polyclinic University of Messina, Via C. Valeria 1, 98125 Messina, Italy.
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Andersson L, Claeson AS, Dantoft TM, Skovbjerg S, Lind N, Nordin S. Chemosensory perception, symptoms and autonomic responses during chemical exposure in multiple chemical sensitivity. Int Arch Occup Environ Health 2015; 89:79-88. [PMID: 25917753 DOI: 10.1007/s00420-015-1053-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 04/17/2015] [Indexed: 11/28/2022]
Abstract
PURPOSE Multiple chemical sensitivity (MCS) is a prevalent medically unexplained symptom characterized by symptom reactions to everyday chemical exposure below hygienic thresholds. The aim of this study was to investigate the expressions of hyper-reactivity in MCS during whole-body exposure to low concentrations of the odorant n-butanol. METHODS We exposed 18 participants with MCS and 18 non-ill controls to a low concentration of the odorant n-butanol using an exposure chamber. The first 10 min constituted blank exposure, after which the n-butanol concentration increased and reached a plateau at 11.5 mg/m(3). RESULTS MCS participants, compared with controls, reported greater perceived odor intensities, more unpleasantness to the exposure and increasing symptoms over time. MCS participants also expressed higher pulse rate and lower pulse rate variability than controls did. No group differences were found for breathing rate or tonic electrodermal activity responses. CONCLUSIONS We conclude that MCS sufferers differ from healthy controls in terms of autonomic responses, symptoms and chemosensory perception during chemical exposure.
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Affiliation(s)
- Linus Andersson
- Department of Occupational and Public Health Sciences, University of Gävle, Johan Bures Väg 13, 907 36, Umeå, Sweden.
| | | | - Thomas Meinertz Dantoft
- Danish Research Centre for Chemical Sensitivities, Copenhagen University Hospital Gentofte, Ledreborg Allé 40, 2, 2820, Gentofte, Denmark. .,Department of Systems Biology, Center for Biological Sequence Analysis, Technical University of Denmark, Kemitorvet, Building 208, 2800, Lyngby, Denmark.
| | - Sine Skovbjerg
- Danish Research Centre for Chemical Sensitivities, Copenhagen University Hospital Gentofte, Ledreborg Allé 40, 2, 2820, Gentofte, Denmark.
| | - Nina Lind
- Department of Psychology, Umeå University, 901 87, Umeå, Sweden.
| | - Steven Nordin
- Department of Psychology, Umeå University, 901 87, Umeå, Sweden.
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Role of polymorphisms of inducible nitric oxide synthase and endothelial nitric oxide synthase in idiopathic environmental intolerances. Mediators Inflamm 2015; 2015:245308. [PMID: 25878398 PMCID: PMC4387900 DOI: 10.1155/2015/245308] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 03/08/2015] [Indexed: 11/29/2022] Open
Abstract
Oxidative stress and inflammation play a pathogenetic role in idiopathic environmental intolerances (IEI), namely, multiple chemical sensitivity (MCS), fibromyalgia (FM), and chronic fatigue syndrome (CFS). Given the reported association of nitric oxide synthase (NOS) gene polymorphisms with inflammatory disorders, we aimed to investigate the distribution of NOS2A −2.5 kb (CCTTT)n as well as Ser608Leu and NOS3 −786T>C variants and their correlation with nitrite/nitrate levels, in a study cohort including 170 MCS, 108 suspected MCS (SMCS), 89 FM/CFS, and 196 healthy subjects. Patients and controls had similar distributions of NOS2A Ser608Leu and NOS3 −786T>C polymorphisms. Interestingly, the NOS3 −786TT genotype was associated with increased nitrite/nitrate levels only in IEI patients. We also found that the NOS2A −2.5 kb (CCTTT)11 allele represents a genetic determinant for FM/CFS, and the (CCTTT)16 allele discriminates MCS from SMCS patients. Instead, the (CCTTT)8 allele reduces by three-, six-, and tenfold, respectively, the risk for MCS, SMCS, and FM/CFS. Moreover, a short number of (CCTTT) repeats is associated with higher concentrations of nitrites/nitrates. Here, we first demonstrate that NOS3 −786T>C variant affects nitrite/nitrate levels in IEI patients and that screening for NOS2A −2.5 kb (CCTTT)n polymorphism may be useful for differential diagnosis of various IEI.
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Zhang DL, Liu SY, Zhang J, Hu CX, Li DH, Liu YD. Antioxidative responses in zebrafish liver exposed to sublethal doses Aphanizomenon flos-aquae DC-1 aphantoxins. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 113:425-432. [PMID: 25544652 DOI: 10.1016/j.ecoenv.2014.12.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 06/04/2023]
Abstract
Aphanizomenon flos-aquae secretes paralytic shellfish poisons (PSPs), termed aphantoxins, and endangers environmental and human health via eutrophication of water worldwide. Although the molecular mechanism of neuronal PSP toxicity has been well studied, several issues remain unresolved, notably the in vivo hepatic antioxidative responses to this neurotoxin. Aphantoxins extracted from a natural isolate of A. flos-aquae DC-1 were resolved by high performance liquid chromatography. The primary components were gonyautoxins 1 and 5 and neosaxitoxin. Zebrafish (Danio rerio) were treated intraperitoneally with either 5.3 or 7.61 (low and high doses, respectively) μg saxitoxin (STX) equivalents (eq)/kg of A. flos-aquae DC-1 aphantoxins. Antioxidative responses in zebrafish liver were examined at different timepoints 1-24h post-exposure. Aphantoxin administration significantly enhanced hepatic malondialdehyde (MDA) content 1-12h post-exposure, indicative of oxidative stress and lipid peroxidation. By contrast, levels of reduced glutathione (GSH) in zebrafish liver declined significantly after 3-24h exposure, suggesting that GSH participates in MDA metabolism. A significant upregulation of the activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) was observed, suggesting that aphantoxins induce lipid peroxidation in zebrafish liver and are likely to be hepatotoxic. Hepatic levels of MDA and GSH, and of the three enzymes (SOD, CAT, and GPx), therefore provide potential biomarkers for studying environmental exposure to aphantoxins/PSPs from cyanobacterial blooms.
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Affiliation(s)
- De Lu Zhang
- Department of Lifescience and Biotechnology, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Si Yi Liu
- Department of Lifescience and Biotechnology, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China
| | - Jing Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Chun Xiang Hu
- Key Laboratory of Algal Biology, Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan 430072, PR China.
| | - Dun Hai Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan 430072, PR China
| | - Yong Ding Liu
- Key Laboratory of Algal Biology, Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan 430072, PR China
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Belpomme D, Campagnac C, Irigaray P. Reliable disease biomarkers characterizing and identifying electrohypersensitivity and multiple chemical sensitivity as two etiopathogenic aspects of a unique pathological disorder. REVIEWS ON ENVIRONMENTAL HEALTH 2015; 30:251-271. [PMID: 26613326 DOI: 10.1515/reveh-2015-0027] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/02/2015] [Indexed: 06/05/2023]
Abstract
Much of the controversy over the causes of electro-hypersensitivity (EHS) and multiple chemical sensitivity (MCS) lies in the absence of both recognized clinical criteria and objective biomarkers for widely accepted diagnosis. Since 2009, we have prospectively investigated, clinically and biologically, 1216 consecutive EHS and/or MCS-self reporting cases, in an attempt to answer both questions. We report here our preliminary data, based on 727 evaluable of 839 enrolled cases: 521 (71.6%) were diagnosed with EHS, 52 (7.2%) with MCS, and 154 (21.2%) with both EHS and MCS. Two out of three patients with EHS and/or MCS were female; mean age (years) was 47. As inflammation appears to be a key process resulting from electromagnetic field (EMF) and/or chemical effects on tissues, and histamine release is potentially a major mediator of inflammation, we systematically measured histamine in the blood of patients. Near 40% had a increase in histaminemia (especially when both conditions were present), indicating a chronic inflammatory response can be detected in these patients. Oxidative stress is part of inflammation and is a key contributor to damage and response. Nitrotyrosin, a marker of both peroxynitrite (ONOO°-) production and opening of the blood-brain barrier (BBB), was increased in 28% the cases. Protein S100B, another marker of BBB opening was increased in 15%. Circulating autoantibodies against O-myelin were detected in 23%, indicating EHS and MCS may be associated with autoimmune response. Confirming animal experiments showing the increase of Hsp27 and/or Hsp70 chaperone proteins under the influence of EMF, we found increased Hsp27 and/or Hsp70 in 33% of the patients. As most patients reported chronic insomnia and fatigue, we determined the 24 h urine 6-hydroxymelatonin sulfate (6-OHMS)/creatinin ratio and found it was decreased (<0.8) in all investigated cases. Finally, considering the self-reported symptoms of EHS and MCS, we serially measured the brain blood flow (BBF) in the temporal lobes of each case with pulsed cerebral ultrasound computed tomosphygmography. Both disorders were associated with hypoperfusion in the capsulothalamic area, suggesting that the inflammatory process involve the limbic system and the thalamus. Our data strongly suggest that EHS and MCS can be objectively characterized and routinely diagnosed by commercially available simple tests. Both disorders appear to involve inflammation-related hyper-histaminemia, oxidative stress, autoimmune response, capsulothalamic hypoperfusion and BBB opening, and a deficit in melatonin metabolic availability; suggesting a risk of chronic neurodegenerative disease. Finally the common co-occurrence of EHS and MCS strongly suggests a common pathological mechanism.
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Abstract
Data about classification, nomenclature, structure, substrate specificity and role of many glutathione transferase's isoenzymes in cell functions have been summarised. The enzyme has been discovered more than 50 years ago. This family of proteins is updated continuously. It has very different composition and will have demand for system analysis for many years.
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De Luca C, Chung Sheun Thai J, Raskovic D, Cesareo E, Caccamo D, Trukhanov A, Korkina L. Metabolic and genetic screening of electromagnetic hypersensitive subjects as a feasible tool for diagnostics and intervention. Mediators Inflamm 2014; 2014:924184. [PMID: 24812443 PMCID: PMC4000647 DOI: 10.1155/2014/924184] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/26/2014] [Indexed: 12/15/2022] Open
Abstract
Growing numbers of "electromagnetic hypersensitive" (EHS) people worldwide self-report severely disabling, multiorgan, non-specific symptoms when exposed to low-dose electromagnetic radiations, often associated with symptoms of multiple chemical sensitivity (MCS) and/or other environmental "sensitivity-related illnesses" (SRI). This cluster of chronic inflammatory disorders still lacks validated pathogenetic mechanism, diagnostic biomarkers, and management guidelines. We hypothesized that SRI, not being merely psychogenic, may share organic determinants of impaired detoxification of common physic-chemical stressors. Based on our previous MCS studies, we tested a panel of 12 metabolic blood redox-related parameters and of selected drug-metabolizing-enzyme gene polymorphisms, on 153 EHS, 147 MCS, and 132 control Italians, confirming MCS altered (P < 0.05-0.0001) glutathione-(GSH), GSH-peroxidase/S-transferase, and catalase erythrocyte activities. We first described comparable-though milder-metabolic pro-oxidant/proinflammatory alterations in EHS with distinctively increased plasma coenzyme-Q10 oxidation ratio. Severe depletion of erythrocyte membrane polyunsaturated fatty acids with increased ω 6/ ω 3 ratio was confirmed in MCS, but not in EHS. We also identified significantly (P = 0.003) altered distribution-versus-control of the CYP2C19∗1/∗2 SNP variants in EHS, and a 9.7-fold increased risk (OR: 95% C.I. = 1.3-74.5) of developing EHS for the haplotype (null)GSTT1 + (null)GSTM1 variants. Altogether, results on MCS and EHS strengthen our proposal to adopt this blood metabolic/genetic biomarkers' panel as suitable diagnostic tool for SRI.
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Affiliation(s)
- Chiara De Luca
- Centre of Innovative Biotechnological Investigations (Cibi-Nanolab), Novoslobodskaya Street 36/1, Moscow 127055, Russia
- Active Longevity Clinic “Institut Krasoty na Arbate”, 8 Maly Nikolopeskovsky lane, Moscow 119002, Russia
| | - Jeffrey Chung Sheun Thai
- Natural Health Farm, 39 Jln Pengacara U1/48, Seksyen U1, Temasya Industrial Park, 40150 Shah Alam, Selangor, Malaysia
| | - Desanka Raskovic
- 2nd Dermatology Division, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Eleonora Cesareo
- 2nd Dermatology Division, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Daniela Caccamo
- Department of Biomedical Sciences and Morpho-Functional Imaging, Polyclinic University of Messina, 98125 Messina, Italy
| | - Arseny Trukhanov
- Active Longevity Clinic “Institut Krasoty na Arbate”, 8 Maly Nikolopeskovsky lane, Moscow 119002, Russia
| | - Liudmila Korkina
- Centre of Innovative Biotechnological Investigations (Cibi-Nanolab), Novoslobodskaya Street 36/1, Moscow 127055, Russia
- Active Longevity Clinic “Institut Krasoty na Arbate”, 8 Maly Nikolopeskovsky lane, Moscow 119002, Russia
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Allergological and toxicological aspects in a multiple chemical sensitivity cohort. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:356235. [PMID: 24367721 PMCID: PMC3866722 DOI: 10.1155/2013/356235] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 05/11/2013] [Indexed: 11/30/2022]
Abstract
Background. Multiple chemical sensitivity (MCS) is a chronic condition characterized by an exaggerated response to toxicants. We ascertained the prevalence of allergy to metals and toxicological aspects in MCS patients. Methods. We conducted a retrospective review of medical records of 41 patients with MCS. We performed patch testing (n = 21) for dental series and did lymphocyte transformation test (n = 18) for metals. We measured mercury in samples of blood (n = 19), urine (n = 19), saliva (n = 20), and scalp hair (n = 17) to investigate the association between mercury levels and cases of MCS. Results. The prevalence of metal immune hypersensitivity in a subset of 26 patients was 92.3 percent. Elevations of mercury occurred in 81.2 percent (26 of 32). The mean (±SD) in blood concentrations of mercury was 7.6 ± 13.6 μg/L; mean in urine was 1.9 ± 2.5 μg/L; mean in scalp hair was 2.2 ± 2.5 μg/g; mean in saliva was 38.1 ± 52.1 μg/L. Subgroup analyses showed that elevation of mercury levels in biological matrices were associated with mercury amalgams in patients with MCS (22 patients), compared with controls (8 patients) (odds ratio 11 : 95 percent confidence interval 1.5 to 81.6; P = 0.023). Conclusions. Our data show an increased prevalence of metal allergy and elevation of mercury levels in bioindicators among patients with MCS.
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Al Bakheet SA, Attafi IM, Maayah ZH, Abd-Allah AR, Asiri YA, Korashy HM. Effect of long-term human exposure to environmental heavy metals on the expression of detoxification and DNA repair genes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2013; 181:226-232. [PMID: 23872045 DOI: 10.1016/j.envpol.2013.06.014] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 06/06/2013] [Accepted: 06/07/2013] [Indexed: 06/02/2023]
Abstract
The present study was designed to evaluate the influence of long-term environmental human exposure to three heavy metals, lead (Pb), cadmium (Cd), and mercury (Hg), on the expression of detoxifying, xenobiotic metabolizing, and DNA repair genes in Mahd Ad-Dahab city. The study groups consisted of 40 healthy male residents (heavy metal-exposed) and 20 healthy male from Riyadh city, 700 km away, and served as control group. The heavy metal-exposed group with high exposure to Pb, Cd, or Hg was divided into three subgroups Pb-, Cd-, and Hg-exposed groups, respectively. The mRNA expression levels of detoxifying, NQO1, HO-1, GSTA1, MT-1, and HSP70, were significantly decreased in all heavy metal-exposed group as compared to control group. This was accompanied with a proportional decrease in the expression of xenobiotic metabolizing gene, cytochrome P4501A1. On the other hand, the DNA repair gene OGG1 and the 8-OHdG level were dramatically inhibited in Cd-exposed group only.
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Affiliation(s)
- Saleh A Al Bakheet
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Gizzo S, Di Gangi S, Patrelli TS, Anis O, Noventa M, D'Antona D, Nardelli GB. Multiple chemical sensitivity in pregnancy: an unclassified rare syndrome. Gynecol Obstet Invest 2013; 76:193-4. [PMID: 24051383 DOI: 10.1159/000354855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 04/23/2013] [Indexed: 11/19/2022]
Affiliation(s)
- Salvatore Gizzo
- Department of Women's and Children's Health, University of Padua, Padua, Italy
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Facco E, Pasquali S, Zanette G, Casiglia E. Hypnosis as sole anaesthesia for skin tumour removal in a patient with multiple chemical sensitivity. Anaesthesia 2013; 68:961-5. [DOI: 10.1111/anae.12251] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2013] [Indexed: 11/26/2022]
Affiliation(s)
- E. Facco
- Department of Neurosciences University of Padua, and the Italian Center for Clinical and Experimental Hypnosis Turin Italy
| | - S. Pasquali
- Department of Oncological and Surgical Sciences University of Padua Padua Italy
| | - G. Zanette
- Department of Neurosciences University of Padua, and the Italian Center for Clinical and Experimental Hypnosis Turin Italy
| | - E. Casiglia
- Department of Medicine University of Padua, and the Italian Center for Clinical and Experimental Hypnosis Turin Italy
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Caccamo D, Cesareo E, Mariani S, Raskovic D, Ientile R, Currò M, Korkina L, De Luca C. Xenobiotic sensor- and metabolism-related gene variants in environmental sensitivity-related illnesses: a survey on the Italian population. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:831969. [PMID: 23936614 PMCID: PMC3725911 DOI: 10.1155/2013/831969] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 05/19/2013] [Indexed: 12/24/2022]
Abstract
In the environmental sensitivity-related illnesses (SRIs), multiple chemical sensitivity (MCS), chronic fatigue syndrome (FCS), and fibromyalgia (FM), the search for genetic polymorphisms of phase I/II xenobiotic-metabolizing enzymes as suitable diagnostic biomarkers produced so far inconclusive results, due to patient heterogeneity, geographic/ethnic differences in genetic backgrounds, and different methodological approaches. Here, we compared the frequency of gene polymorphisms of selected cytochrome P450 (CYP) metabolizing enzymes and, for the first time, the frequency of the xenobiotic sensor Aryl hydrocarbon receptor (AHR) in the three cohorts of 156 diagnosed MCS, 94 suspected MCS, and 80 FM/FCS patients versus 113 healthy controls. We found significantly higher frequency of polymorphisms CYP2C9∗2, CYP2C9∗3, CYP2C19∗2, CYP2D6∗4 and CYP2D6∗41 in patients compared with controls. This confirms that these genetic variants represent a genetic risk factor for SRI. Moreover, the compound heterozygosity for CYP2C9∗2 and ∗3 variants was useful to discriminate between either MCS or FM/CFS versus SMCS, while the PM ∗41/∗41 genotype discriminated between MCS and either SMCS or FM/CFS. The compound heterozygosity for CYP2C9 ∗1/∗3 and CYP2D6 ∗1/∗4 differentiated MCS and SMCS cases from FM/CFS ones. Interestingly, despite the distribution of the AHR Arg554Lys variant did not result significantly different between SRI cases and controls, it resulted useful for the discrimination between MCS and SMCS cases when considered within haplotypes in combination with CYP2C19 ∗1/∗2 and CYP2D6 ∗1/∗4. Results allowed us to propose the genotyping for these specific CYP variants, together with the AHR Arg554Lys variant, as reliable, cost-effective genetic parameters to be included in the still undefined biomarkers' panel for laboratory diagnosis of the main types of environmental-borne SRI.
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Affiliation(s)
- Daniela Caccamo
- Department of Biomedical Sciences and Morpho-Functional Imaging, Polyclinic University of Messina, 98125 Messina, Italy
| | - Eleonora Cesareo
- Laboratory of Tissue Engineering and Skin Pathophysiology, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Serena Mariani
- Laboratory of Tissue Engineering and Skin Pathophysiology, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Desanka Raskovic
- 2nd Dermatology Division, Dermatology Institute (IDI IRCCS), 00167 Rome, Italy
| | - Riccardo Ientile
- Department of Biomedical Sciences and Morpho-Functional Imaging, Polyclinic University of Messina, 98125 Messina, Italy
| | - Monica Currò
- Department of Biomedical Sciences and Morpho-Functional Imaging, Polyclinic University of Messina, 98125 Messina, Italy
| | - Liudmila Korkina
- Laboratory of Tissue Engineering and Skin Pathophysiology, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Chiara De Luca
- Laboratory of Tissue Engineering and Skin Pathophysiology, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
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Multiple chemical sensitivity and the workplace: current position and need for an occupational health surveillance protocol. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:351457. [PMID: 23844274 PMCID: PMC3697784 DOI: 10.1155/2013/351457] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 05/28/2013] [Indexed: 12/03/2022]
Abstract
Multiple chemical sensitivity, commonly known as environmental illness, is a chronic disease in which exposure to low levels of chemicals causes correlated symptoms of varying intensity. With the continuous introduction of new substances, people with MCS suffer significant limitations to their living environment and frequently to their workplace. This paper describes the current situation as regards MCS and the critical points in its case definition, which is still not generally agreed upon; this makes it difficult to recognize with certainty, especially, its precise relationship with work. Other problems arise in relation to the occupational physician's role in diagnosing and managing the worker with the disorder, the question of low levels of exposure to chemicals, and the best measures possible to prevent it. A diagnostic “route” is proposed, useful as a reference for the occupational physician who is often called in first to identify cases suspected of having this disease and to manage MCS workers. Work-related problems for people with MCS depend not only on occupational exposure but also on the incompatibility between their illness and their work. More occupational physicians need to be “sensitive” to MCS, so that these workers are recognized promptly, the work is adapted as necessary, and preventive measures are promoted in the workplace.
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Theoharides TC. Atopic conditions in search of pathogenesis and therapy. Clin Ther 2013; 35:544-7. [PMID: 23642292 DOI: 10.1016/j.clinthera.2013.04.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 04/03/2013] [Indexed: 12/22/2022]
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