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Lu X, Hojo S, Mizukoshi A, Katoh T. Prevalence and correlation of multiple chemical sensitivity and electromagnetic hypersensitivity with age, sex, and depression in the Japanese population: a retrospective study. BMC Public Health 2023; 23:1205. [PMID: 37344806 DOI: 10.1186/s12889-023-16152-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/19/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND In Japan, there are currently no definitive conclusions regarding the characteristics of multiple chemical sensitivity (MCS) and electromagnetic hypersensitivity (EHS). This study aimed to determine the prevalence and correlation of MCS and EHS with age, sex, and depression in the Japanese population. METHODS An anonymous self-report questionnaire was distributed to 2,007 participants. Variables such as MCS, EHS, depression score, and demographic characteristics were individually evaluated using the U-test, chi-squared test, and correlation analyses. Moreover, we performed a covariance structure analysis to build a structural equation model. RESULTS Older individuals and women were more likely to exhibit MCS and EHS symptoms. Moreover, depression was correlated with MCS and EHS. CONCLUSIONS Although MCS and EHS are strongly correlated, they exhibit distinct characteristics and symptoms, indicating that they can be regarded as separate conditions.
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Affiliation(s)
- Xi Lu
- Department of Public Health, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.
| | - Sachiko Hojo
- Shokei Gakuin University, Natori, Miyagi, 981-1295, Japan
- Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - Atsushi Mizukoshi
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Osaka, 589-8511, Japan
| | - Takahiko Katoh
- Department of Public Health, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
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Tsumura K, Nakaoka H, Suzuki N, Takaguchi K, Nakayama Y, Shimatani K, Mori C. Is indoor environment a risk factor of building-related symptoms? PLoS One 2023; 18:e0279757. [PMID: 36696431 PMCID: PMC9876365 DOI: 10.1371/journal.pone.0279757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/14/2022] [Indexed: 01/26/2023] Open
Abstract
The indoor environment, particularly indoor air quality (IAQ), is significantly associated with building-related symptoms (BRSs) in humans. In our previous studies, we demonstrated a significant relationship between BRSs and indoor chemical concentrations. In Japan, the Ministry of Health, Labor, and Welfare (MHLW) guideline recommends an air quality target of 13 volatile organic compounds (VOCs) and a provisional target of 400 μg/m3 for total VOCs (TVOC). The objective of this study was to determine the relationship between TVOC levels and the risk of BRSs using the Japanese provisional target TVOC level of 400 μg/m3. The relationship between odor intensity and BRSs while the TVOC levels were under 400 μg/m3 was also examined. The study was conducted in a laboratory house (LH) on the campus of Chiba University from 2017-2019. The study included 149 participants who spent 60 minutes in the LH. The participants were asked to evaluate the IAQ of the LH. A significant relationship between the risk of BRSs and the provisional target TVOC level was observed (odds ratio: 2.94, 95% confidence interval: 1.18-7.35). Furthermore, a significant relationship between odor intensity and risk of BRSs in spaces with TVOC levels less than 400 μg/m3 was detected (odds ratio: 6.06, 95% confidence interval: 1.21-30.44). In conclusion, the risk of BRSs is significantly lower in spaces with low TVOC levels and low odor intensity. Reducing the concentration of airborne chemicals and odor intensity may improve IAQ and prevent BRSs.
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Affiliation(s)
- Kayo Tsumura
- Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Hiroko Nakaoka
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
- Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Norimichi Suzuki
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Kohki Takaguchi
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | | | - Keiichi Shimatani
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Chisato Mori
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
- Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- * E-mail:
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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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Azuma K, Uchiyama I, Kunugita N. Potential factors affecting chronic chemical intolerance associated with constitutional predisposition or lifestyle and environment during childhood: From a six-year follow-up study. J Psychosom Res 2021; 151:110665. [PMID: 34763204 DOI: 10.1016/j.jpsychores.2021.110665] [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: 08/02/2021] [Revised: 10/31/2021] [Accepted: 10/31/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The Japanese chemical intolerance (JCI) study was conducted in January 2012 with a cohort of 7245 adults from population-based sampling. This study aimed to investigate the childhood constitutional and environmental factors involved in the development of chronic CI from the prospective cohort study. METHODS In the cohort, 4683 persons were identified after six years. Self-reported questionnaires were administered to the subjects to obtain information on CI status; medical history; constitution, lifestyle, and housing environment during childhood; and recent psychosomatic states. We assessed the differences between individuals with persisting CI status during the follow-up (defined as chronic CI) and controls not having CI status during the follow-up. RESULTS A total of 2500 individuals responded. Multiple logistic regression analyses revealed significant associations between chronic CI and motion sickness to car or bus and allergic conjunctivitis during childhood. Significant associations between a possible increased risk of CI and the existence of high-voltage power lines close to housing, the use of vinyl covering in wall material, the use of strong perfume by a family member, and the experience of stinky odor of paint or wax at elementary school were observed. However, the use of carpet in floor material and plaster coating in wall material was associated with a possible decreased risk of CI. CONCLUSIONS Some potential constitutional predisposition from childhood, including inherent susceptibility in the autonomic nervous system may be involved in the development of CI.
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Affiliation(s)
- Kenichi Azuma
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama 589-8511, Japan; Department of Environmental Health, National Institute of Public Health, Wako 351-0197, Japan.
| | - Iwao Uchiyama
- Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto 606-8225, Japan.
| | - Naoki Kunugita
- Occupational and Community Health Nursing Division, Department of Nursing, School of Health Sciences, University of Occupational and Environmental Health, Japan; Department of Environmental Health, National Institute of Public Health, Wako 351-0197, Japan.
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Multiple Chemical Sensitivity in Patients Exposed to Moisture Damage at Work and in General Working-Age Population-The SAMDAW Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312296. [PMID: 34886041 PMCID: PMC8657242 DOI: 10.3390/ijerph182312296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 11/17/2022]
Abstract
A considerable proportion of patients having respiratory tract or voice symptoms associated with workplace moisture damage (MD) could have multiple chemical sensitivity (MCS). MCS is characterized by symptoms of different organ systems in association with low-level chemical exposure. The objective of this study was to assess the prevalence of MCS among patients referred to secondary health care because of respiratory or voice symptoms associated with workplace MD compared to the general working-age population. Using three subscales of the QEESI© questionnaire, we assessed MCS in the study patients and 1500 controls in the same district randomly selected from the Finnish Population Information System. Study patients had significantly more often high scores in chemical intolerance (39% vs. 23%, p = 0.001), symptom severity (60% vs. 27%, p < 0.001), and life impact subscales (53% vs. 20%, p < 0.001). Asthma, chronic rhinosinusitis, laryngeal problems, and atopy were not associated with the presence of MCS. MCS is common among patients referred to secondary health care with respiratory tract and/or voice symptoms associated with workplace MD, and it considerably affects their everyday life. MCS should be considered as a possible explanatory factor for MD-associated symptoms.
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Suzuki N, Nakaoka H, Nakayama Y, Tsumura K, Takaguchi K, Takaya K, Eguchi A, Hanazato M, Todaka E, Mori C. Association between sum of volatile organic compounds and occurrence of building-related symptoms in humans: A study in real full-scale laboratory houses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 750:141635. [PMID: 32882497 DOI: 10.1016/j.scitotenv.2020.141635] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/03/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
It is well known that the indoor environment, particularly indoor air quality (IAQ), has significant effects on building-related symptoms (BRSs) in humans, such as irritation of mucosal membranes, headaches, and allergies, such as asthma and atopic dermatitis. In 2017, Chiba University launched the "Chemiless Town Project Phase 3" to investigate the relationship between IAQ and human health. Two laboratory houses (LHs) were built on a university campus in which the interiors and exteriors were similar, but the levels of indoor air volatile organic compounds (VOCs) were different. A total of 141 participants evaluated IAQ using their sensory perception. There was a significant relationship between differences in VOC levels and BRSs occurrence (OR: 6.89, 95% CI: 1.40-33.98). It was suggested that people with a medical history of allergies (OR: 5.73, 95% CI: 1.12-29.32) and those with a high sensitivity to chemicals (OR: 8.82, 95% CI: 1.16-67.16) tended to experience BRSs. Thus, when buildings are constructed, people with a history of allergies or with a sensitivity to chemicals may be at high risk to BRSs, and it is important to pay attention to IAQ to prevent BRSs.
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Affiliation(s)
- Norimichi Suzuki
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.
| | - Hiroko Nakaoka
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan; Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Yoshitake Nakayama
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.
| | - Kayo Tsumura
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan; Graduate School of Medical and Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Kohki Takaguchi
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.
| | - Kazunari Takaya
- National Institute of Occupational Safety and Health, 6-21-1 Nagao, Tama-ku, Kawasaki 214-8585, Japan.
| | - Akifumi Eguchi
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.
| | - Masamichi Hanazato
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.
| | - Emiko Todaka
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan; Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Chisato Mori
- Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan; Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
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Palmer RF, Jaén CR, Perales RB, Rincon R, Forster JN, Miller CS. Three questions for identifying chemically intolerant individuals in clinical and epidemiological populations: The Brief Environmental Exposure and Sensitivity Inventory (BREESI). PLoS One 2020; 15:e0238296. [PMID: 32936802 PMCID: PMC7494077 DOI: 10.1371/journal.pone.0238296] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 08/14/2020] [Indexed: 12/12/2022] Open
Abstract
The Quick Environmental Exposure and Sensitivity Inventory (QEESI) is a validated questionnaire used worldwide to assess intolerances to chemicals, foods, and drugs, and has emerged as the gold standard for assessing chemical intolerance (CI). Despite a reported prevalence of 8–33%, epidemiological studies and routine primary care clinics rarely assess CI. To help address this gap, we developed the Brief Environmental Exposure and Sensitivity Inventory (BREESI)—a 3-item CI screening tool. We tested the BREESI’s potential to predict whether an individual is likely to be classified as chemically intolerant if administered the 50-item QEESI. We recruited 293 participants from a university-based primary care clinic and through online participation. The statistical sensitivity, specificity, and positive and negative predictive values of the BREESI were calculated against the validated QEESI. Ninety percent (90%) of participants answering “yes” to all three items on the BREESI fit the QEESI criteria for being very suggestive of CI based upon their chemical intolerance and symptom scores (positive predictive value = 90%). For participants endorsing two items, 93% were classified as either very suggestive (39%) or suggestive (54%) of CI (positive predictive value = 87%). Of those endorsing only one item, 13% were classified as very suggestive of CI, and 70% as suggestive. Of those answering “No” to all of the BREESI items, 95% were classified as not suggestive of CI (i.e., negative predictive value = 95%). The BREESI is a versatile screening tool for assessing potential CI useful for clinical and epidemiological applications, based upon individuals’ past adverse responses in a variety of settings. Just as health care professionals routinely inquire about latex allergy to prevent adverse reactions, the BREESI provides an essential screen for CI. Together, the BREESI and QEESI provide new diagnostic tools that may help predict and prevent future adverse reactions to chemicals, foods, and drugs.
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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, Texas, United States of America
- * E-mail:
| | - Carlos R. Jaén
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Roger B. Perales
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Rodolfo Rincon
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Jacqueline N. Forster
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Claudia S. Miller
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
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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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Hojo S, Mizukoshi A, Azuma K, Okumura J, Mizuki M, Miyata M. New criteria for multiple chemical sensitivity based on the Quick Environmental Exposure and Sensitivity Inventory developed in response to rapid changes in ongoing chemical exposures among Japanese. PLoS One 2019; 14:e0215144. [PMID: 31026284 PMCID: PMC6485617 DOI: 10.1371/journal.pone.0215144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/27/2019] [Indexed: 12/12/2022] Open
Abstract
Background & objectives The Quick Environmental Exposure and Sensitivity Inventory (QEESI) developed by Miller and Prihoda in the USA is used as a questionnaire for patients with multiple chemical sensitivity (MCS) in >10 countries. We developed a Japanese version of QEESI, assessed its reliability and validity, and defined original cut-off values for screening Japanese patients with MCS in 2003. Our recent study revealed that opportunities for exposure to various chemicals had increased for people in Japan, while subjective symptoms of MCS in patients had increased in severity. In this study, we considered new cut-off values that combined QEESI subscale scores based on the current situation in Japan. Methods The questionnaire used was a Japanese version of QEESI. The survey was conducted from 2012 to 2015. Participants were 111 patients with MCS (mean age: 46 ± 20, 81% female) initially diagnosed by physicians, and 444 age- and gender-matched controls not diagnosed with MCS by doctors. The discriminatory validity of QEESI scores of patients and controls were evaluated by logistic regression and receiver operating characteristic analyses when considering interactions of the Masking Index (ongoing chemical exposure). New combined cut-off values were then set. Results New combined cut-off values (meeting conditions of Chemical Intolerances ≥ 30, Symptom Severity ≥ 13, and Life Impacts ≥ 17) showed high sensitivity (82.0%) and specificity (94.4%). Using new criteria when considering ongoing chemical exposure, study participants were categorized as: Very suggestive, Somewhat suggestive, Problematic, and Not suggestive. Participants classified as Very suggestive included 25 (5.6%) controls. Conclusions We have set new criteria with combined cut-off values based on current Japanese conditions. Such new criteria can be used for screening and as a diagnostic aid for Japanese patients with MCS and suggest approximately 6% of the Japanese general population may be classified as “Very suggestive people with MCS”.
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Affiliation(s)
- Sachiko Hojo
- Institute of Applied Brain Sciences, Waseda University, Tokorozawa, Japan
- Shokei Gakuin University, Natori, Japan
- Tohoku University Graduate School of Dentistry, Sendai, Japan
- * E-mail:
| | - Atsushi Mizukoshi
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Kenichi Azuma
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Jiro Okumura
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Masami Mizuki
- Department of Respiratory Medicine and Allergy, National Hospital Organization, Morioka National Hospital, Morioka, Japan
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Azuma K, Uchiyama I, Kunugita N. Factors affecting self-reported chemical intolerance: A five-year follow-up study in Japan. J Psychosom Res 2019; 118:1-8. [PMID: 30782347 DOI: 10.1016/j.jpsychores.2019.01.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Chemical intolerance (CI) has become a strong public health concern in industrialized countries. The Japanese Chemical Intolerance (JCI) study was conducted in January 2012 with a cohort of 7245 adults from population-based sampling as the baseline. The aim of the present study was to investigate the factors involved in the improvement and development of CI from the five-year follow-up study. METHODS From the 7245 cohort, 735 persons with CI (case) were identified, and 1750 controls without CI were randomly selected to match gender and age for case and control groups. Self-reported questionnaires were administered to the subjects of the two groups to obtain information on status of CI; medical history; medical, lifestyle, or physical interventions; changes in living situation or occupation; and psychosomatic states. RESULTS A total of 909 individuals responded during the follow-up period. After five years, improvement in CI was observed in 67.7% of the case group. Status of CI was reported in 6.7% of the control group. Multiple logistic regression analyses revealed that baseline atopic dermatitis and negative psychosomatic states including irritability, fatigue, anxiety, depressed mood, and somatic symptoms were significantly associated with development of CI in controls. Appropriate physical activity and maintaining a regular lifestyle including diet or sleep during the last three years of the follow-up period were significant factors for improvement of CI in the case group. CONCLUSIONS Ensuring appropriate physical activity and regular lifestyle rather than improving physical environment lead to improvement of CI. Stable psychosomatic state is essential for preventing CI.
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Affiliation(s)
- Kenichi Azuma
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama 589-8511, Japan; Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto 606-8225, Japan; Department of Environmental Health, National Institute of Public Health, Wako 351-0197, Japan.
| | - Iwao Uchiyama
- Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto 606-8225, Japan.
| | - Naoki Kunugita
- Department of Environmental Health, National Institute of Public Health, Wako 351-0197, Japan.
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Hojo S, Mizukoshi A, Azuma K, Okumura J, Ishikawa S, Miyata M, Mizuki M, Ogura H, Sakabe K. Survey on changes in subjective symptoms, onset/trigger factors, allergic diseases, and chemical exposures in the past decade of Japanese patients with multiple chemical sensitivity. Int J Hyg Environ Health 2018; 221:1085-1096. [PMID: 30115513 DOI: 10.1016/j.ijheh.2018.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 07/19/2018] [Accepted: 08/02/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Recently, with rapid changes in the Japanese lifestyle, the clinical condition of patients with multiple chemical sensitivity (MCS) may also have undergone change. Thus, we conducted a new survey for subjective symptoms, ongoing chemical exposures, the prevalence of allergic diseases, and presumed onset/trigger factors in patients with MCS and compared results with those of an old survey from ten years ago. METHODS The new survey was conducted from 2012 to 2015 and the old survey was independently conducted from 1999 to 2003, meaning it was not a follow-up study. Patients were initially diagnosed by physicians at five medical institutions with MCS specialty outpatient services, with 111 and 103 patients participating in the new and old surveys, respectively. The controls were a general population living in Japan, with 1313 and 2382 participants in the new and old surveys, respectively. Subjective symptoms and ongoing chemical exposure were evaluated using a quick environmental exposure sensitivity inventory. Additionally, from clinical findings recorded by an attending physician, the prevalence of allergic diseases and presumed onset/trigger factors were evaluated. Differences between new and old surveys were analyzed using logistic regression analyses and significance tests. RESULTS Compared with ten years ago: (1) Regarding factors affecting patients with ongoing chemical exposures, the proportion of patients affected decreased significantly for two items only (insecticides and second-hand smoke). The proportion of controls showing ongoing exposure to 8 out of 10 items changed significantly. (2) In patients, scores for chemical intolerances, other intolerances, and life impacts increased significantly. (3) In terms of the prevalence of allergic diseases among patients with MCS, bronchial asthma (adjusted odds ratio [AOR]: 5.19), atopic dermatitis (AOR: 3.77), allergic rhinitis (AOR: 5.34), and food allergies (AOR: 2.63) increased significantly, while hay fever (AOR: 0.38) and drug allergies (AOR: 0.40) decreased significantly. (4) With regard to construction and renovation, which was the presumed predominant onset/trigger factor for MCS 10 years ago, this decreased from 68.9% to 35.1%; in contrast, electromagnetic fields (0.0%-26.1%), perfume (0.0%-20.7%), and medical treatment (1.9%-7.2%) increased significantly, confirming the diversification of onset/trigger factors. CONCLUSION Compared to ten years ago, for patients with MCS, an increase in avoidance behavior toward chemical substance exposures, which were presumed to be aggravating factors for symptoms, was confirmed. It has been suggested that the ongoing chemical exposure of the general population in Japan has largely changed. In addition, for patients with MCS, chemical intolerances and life impacts have become severe, the prevalence of the main allergic diseases has increased, and onset/trigger factors have become diversified.
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Affiliation(s)
- Sachiko Hojo
- Institute of Applied Brain Sciences, Waseda University, Tokorozawa, Japan; Shokei Gakuin University, Natori, Japan; Graduate School of Dentistry, Tohoku University, Sendai, Japan.
| | - Atsushi Mizukoshi
- Institute of Applied Brain Sciences, Waseda University, Tokorozawa, Japan; Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Kenichi Azuma
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Jiro Okumura
- Department of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Satoshi Ishikawa
- Environmental Medical Center, Kitasato Institute Hospital, Tokyo, Japan
| | | | - Masami Mizuki
- Department of Respiratory Medicine and Allergy, Morioka National Hospital, Morioka, Japan
| | - Hideo Ogura
- Department of Clinical Research and Allergy, Kochi National Hospital, Kochi, Japan
| | - Kou Sakabe
- Environmental Medical Center, Kitasato Institute Hospital, Tokyo, Japan; Department of Human Structure and Function, Tokai University School of Medicine, Isehara, Japan
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12
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Hojo S, Tokiya M, Mizuki M, Miyata M, Kanatani KT, Takagi A, Tsurikisawa N, Kame S, Katoh T, Tsujiuchi T, Kumano H. Development and evaluation of an electromagnetic hypersensitivity questionnaire for Japanese people. Bioelectromagnetics 2016; 37:353-72. [PMID: 27324106 PMCID: PMC5094565 DOI: 10.1002/bem.21987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 05/20/2016] [Indexed: 11/17/2022]
Abstract
The purpose of the present study was to evaluate the validity and reliability of a Japanese version of an electromagnetic hypersensitivity (EHS) questionnaire, originally developed by Eltiti et al. in the United Kingdom. Using this Japanese EHS questionnaire, surveys were conducted on 1306 controls and 127 self‐selected EHS subjects in Japan. Principal component analysis of controls revealed eight principal symptom groups, namely, nervous, skin‐related, head‐related, auditory and vestibular, musculoskeletal, allergy‐related, sensory, and heart/chest‐related. The reliability of the Japanese EHS questionnaire was confirmed by high to moderate intraclass correlation coefficients in a test–retest analysis, and high Cronbach's α coefficients (0.853–0.953) from each subscale. A comparison of scores of each subscale between self‐selected EHS subjects and age‐ and sex‐matched controls using bivariate logistic regression analysis, Mann–Whitney U‐ and χ2 tests, verified the validity of the questionnaire. This study demonstrated that the Japanese EHS questionnaire is reliable and valid, and can be used for surveillance of EHS individuals in Japan. Furthermore, based on multiple logistic regression and receiver operating characteristic analyses, we propose specific preliminary criteria for screening EHS individuals in Japan. Bioelectromagnetics. 37:353–372, 2016. © 2016 The Authors. Bioelectromagnetics Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Sachiko Hojo
- Institute of Applied Brain Sciences, Waseda University, Tokorozawa, Japan.,Department of Allergy and Respirology, and Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Sagamihara, Japan.,Shokei Gakuin University, Natori, Japan
| | - Mikiko Tokiya
- Faculty of Medicine, Department of Public Health and Epidemiology, Oita University, Oita, Japan
| | - Masami Mizuki
- Department of Respiratory Medicine and Allergy, National Hospital Organization, Morioka National Hospital, Morioka, Japan
| | - Mikio Miyata
- Clinic of Enviromental Medicine Soyokaze Tokyo, Tokyo, Japan
| | - Kumiko T Kanatani
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Airi Takagi
- Division of Biostatistics, Tohoku University Hospital Clinic Research Data Center, Sendai, Japan
| | - Naomi Tsurikisawa
- Department of Allergy and Respirology, and Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Sagamihara, Japan
| | - Setsuko Kame
- Kansai University of Health Sciences, Osaka, Japan
| | - Takahiko Katoh
- Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takuya Tsujiuchi
- Institute of Applied Brain Sciences, Waseda University, Tokorozawa, Japan.,Faculty of Human Sciences, Waseda University, Tokorozawa, Japan
| | - Hiroaki Kumano
- Institute of Applied Brain Sciences, Waseda University, Tokorozawa, Japan.,Faculty of Human Sciences, Waseda University, Tokorozawa, Japan
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13
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Azuma K, Uchiyama I, Katoh T, Ogata H, Arashidani K, Kunugita N. Prevalence and Characteristics of Chemical Intolerance: A Japanese Population-Based Study. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2015; 70:341-353. [PMID: 25137616 DOI: 10.1080/19338244.2014.926855] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Population-based cross-sectional study was performed to estimate the prevalence of chemical intolerance and to examine the characteristics of the sample. A Web-based survey was conducted that included 7,245 adults in Japan. The criteria for chemical intolerance proposed by Skovbjerg yielded a prevalence of 7.5% that was approximately consistent with that reported from a Danish population-based survey. Female gender, older age, and renovation in the house during the past 7 years were positively associated with chemical intolerance. Improvements in the condition were observed with daily ventilation habits. Medical history of atopic dermatitis, allergic rhinitis, food allergy, multiple chemical sensitivity, and depression were associated with chemical intolerance. Fatigue, depressed mood, and somatic symptoms were also positively correlated with chemical intolerance. Better elucidation of the causes, comorbidities, concomitants, and consequences of chemical intolerance has the potential to provide effective solutions for its prevention and treatment.
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Affiliation(s)
- Kenichi Azuma
- a Department of Environmental Medicine and Behavioral Science, Kinki University Faculty of Medicine , Osaka , Japan
- b Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research , Kyoto , Japan
| | - Iwao Uchiyama
- b Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research , Kyoto , Japan
| | - Takahiko Katoh
- c Department of Public Health, Graduate School of Life Sciences, Kumamoto University, Kumamoto , Japan
| | - Hiromitsu Ogata
- d Center for Public Health Informatics, National Institute of Public Health , Saitama , Japan
| | | | - Naoki Kunugita
- f Department of Environmental Health, National Institute of Public Health , Saitama , Japan
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14
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Cui X, Lu X, Hiura M, Oda M, Hisada A, Miyazaki W, Omori H, Katoh T. Prevalence and interannual changes in multiple chemical sensitivity in Japanese workers. Environ Health Prev Med 2014; 19:215-9. [PMID: 24477857 DOI: 10.1007/s12199-014-0378-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 01/14/2014] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE We aimed to evaluate the prevalence rates and interannual fluctuations in multiple chemical sensitivity (MCS) in Japanese workers. METHODS We assessed MCS using the Quick Environmental Exposure and Sensitivity Inventory, employing both Miller and Japanese criteria. Workers of two manufacturing companies located in Kyushu, Japan, were assessed, with company A surveyed in 2003, 2006 and 2011, and company B in 2003 and 2011. RESULTS In company A, the Miller criteria-based MCS prevalence rate was higher in 2011 than in 2003, and according to the Japanese criteria, it was higher in 2011 than 2006. In company B, the Miller criteria-based MCS prevalence rate was lower in 2011 than in 2003. CONCLUSION The results indicated that MCS exists among industrial workers in Japan. We found no statistically significant interannual changes in MCS rates.
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Affiliation(s)
- Xiaoyi Cui
- Department of Public Health, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjou, Chuo-ku, Kumamoto, 860-8556, Japan,
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15
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Azuma K, Uchiyama I, Takano H, Tanigawa M, Azuma M, Bamba I, Yoshikawa T. Changes in cerebral blood flow during olfactory stimulation in patients with multiple chemical sensitivity: a multi-channel near-infrared spectroscopic study. PLoS One 2013; 8:e80567. [PMID: 24278291 PMCID: PMC3836968 DOI: 10.1371/journal.pone.0080567] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 10/03/2013] [Indexed: 11/19/2022] Open
Abstract
Multiple chemical sensitivity (MCS) is characterized by somatic distress upon exposure to odors. Patients with MCS process odors differently from controls. This odor-processing may be associated with activation in the prefrontal area connecting to the anterior cingulate cortex, which has been suggested as an area of odorant-related activation in MCS patients. In this study, activation was defined as a significant increase in regional cerebral blood flow (rCBF) because of odorant stimulation. Using the well-designed card-type olfactory test kit, changes in rCBF in the prefrontal cortex (PFC) were investigated after olfactory stimulation with several different odorants. Near-infrared spectroscopic (NIRS) imaging was performed in 12 MCS patients and 11 controls. The olfactory stimulation test was continuously repeated 10 times. The study also included subjective assessment of physical and psychological status and the perception of irritating and hedonic odors. Significant changes in rCBF were observed in the PFC of MCS patients on both the right and left sides, as distinct from the center of the PFC, compared with controls. MCS patients adequately distinguished the non-odorant in 10 odor repetitions during the early stage of the olfactory stimulation test, but not in the late stage. In comparison to controls, autonomic perception and negative affectivity were poorer in MCS patients. These results suggest that prefrontal information processing associated with odor-processing neuronal circuits and memory and cognition processes from past experience of chemical exposure play significant roles in the pathology of this disorder.
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Affiliation(s)
- Kenichi Azuma
- Department of Environmental Medicine and Behavioral Science, Kinki University Faculty of Medicine, Osakasayama, Osaka, Japan
- Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto, Japan
- * E-mail:
| | - Iwao Uchiyama
- Sick-house Medical Science Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto, Japan
- Outpatient Department of Sick-house Syndrome, Hyakumanben Clinic, Kyoto, Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Mari Tanigawa
- Clinical Immune Function Laboratory, Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto, Japan
- Division of Internal Medicine, Hyakumanben Clinic, Kyoto, Japan
| | - Michiyo Azuma
- Department of Human Environmental Design, Faculty of Health Science, Kio University, Kitakatsuragi-gun, Nara, Japan
| | - Ikuko Bamba
- Department of Environmental Medicine and Behavioral Science, Kinki University Faculty of Medicine, Osakasayama, Osaka, Japan
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16
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Cui X, Lu X, Hiura M, Oda M, Miyazaki W, Katoh T. Evaluation of genetic polymorphisms in patients with multiple chemical sensitivity. PLoS One 2013; 8:e73708. [PMID: 23967348 PMCID: PMC3742528 DOI: 10.1371/journal.pone.0073708] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 07/20/2013] [Indexed: 01/21/2023] Open
Abstract
Objective Multiple chemical sensitivity (MCS) is a chronic medical condition characterized by symptoms that the affect an individual’s response to low-level chemical exposure. In this study, we identified a chemical sensitive population (CSP) and investigated the effect of genetic polymorphisms on their risk of chemical sensitivity. Methods A quick environment exposure sensitivity (QEESI) questionnaire was used to survey 324 Japanese male workers whose DNA samples had been collected and stored. The following genes, which encode enzymes affecting the metabolic activation of a large number of xenobiotic compounds, were selected and analyzed in order to determine their influence on genetic predisposition to CSP: cytochrome P450 (CYP) 2E1, N-acetyl transferase (NAT) 2, glutathione S-transferase (GST) M1, GSTT1, GSTP1, low Km aldehyde dehydrogenase (ALDH2), and superoxide dismutase (SOD) 2. Results Significant case-control distributed differences were observed in SOD2 polymorphisms and allele frequency distribution in high chemical sensitive subjects. Both the significant adjusted OR of 4.30 (95% CI, 1.23–15.03) and 4.53 (95% CI, 1.52-13.51) were observed in SOD2 Ala/Ala and Val/Ala compared to Val/Val and in SOD2 Ala/Ala compared to Val/Ala compared to Val/Val genetic analysis in the high chemical sensitivity case-control study. Conclusions We observed that high chemical sensitive individuals diagnosed by using Japanese criteria as MCS patients were more significantly associated with SOD2 polymorphisms.
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Affiliation(s)
- Xiaoyi Cui
- Department of Public Health, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
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17
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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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18
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Evaluation of the quick environmental exposure and sensitivity inventory in a Danish population. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2012; 2012:304314. [PMID: 22529872 PMCID: PMC3317206 DOI: 10.1155/2012/304314] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 11/18/2011] [Accepted: 12/03/2011] [Indexed: 11/17/2022]
Abstract
Objectives. To evaluate a Danish translation of the Quick Environmental Exposure and Sensitivity Inventory (QEESI). Methods. The study included two groups: one comprised a random sample of 2000 individuals drawn from the Danish Civil Registration System; the other comprised 315 patients with chemical intolerance. Results. The evaluation suggested good reliability for the four QEESI scales in terms of internal consistency and coefficients between test and retest scores. The discriminatory validity was the largest for the Chemical (inhalant) Intolerance and Life Impact Scales. Using combined cut-off scores for these two scales provided a sensitivity of 92.1 and a specificity of 91.8 and yielded a prevalence of 8.2% in the population group. Conclusions. The Danish translation of the QEESI showed overall good reliability and validity. We recommend the use of the combined Chemical (inhalant) Intolerance and Life Impact Scales in future studies.
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Fujimori S, Hiura M, Yi CX, Xi L, Katoh T. Factors in genetic susceptibility in a chemical sensitive population using QEESI. Environ Health Prev Med 2011; 17:357-63. [PMID: 22205546 DOI: 10.1007/s12199-011-0260-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Accepted: 12/05/2011] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES Inherited impairment of xenobiotic metabolism is a postulated mechanism underlying environmentally associated pathogeneses such as multiple chemical sensitivity (MCS). Using the Quick Environmental Exposure and Sensitivity Inventory (QEESI), we defined people who have a strong response to chemical substances as "chemical sensitive populations (CSP)." The aim of this study is to evaluate the condition of subjects sensitive to chemicals and to analyze their genotypes in order to identify susceptibility factors in CSPs in Japanese populations. METHODS A total of 1,084 employees of Japanese companies were surveyed using the QEESI, history of MCS, and sick house syndrome. The common genotypes of the participants were analyzed for glutathione S-transferase (GST) M1, GSTT1, aldehyde dehydrogenase2 (ALDH2), and paraoxonase1 (PON1) in order to identify factors in the susceptibility to sensitivity to chemicals. RESULTS Four subjects had history of diagnosis of MCS; no subjects had diagnosis of sick house syndrome. The subjects were divided into four levels according to scores of 0, 1-19, 20-39, and 40 or more on three of the QEESI subscales. In addition, we used the MCS criteria by Hojo to differentiate between cases (CSP) and controls. No significant differences in the allelic distribution of genetic polymorphisms in the GSTM1, GSTT1, ALDH2 or PON1 genes were found among the four levels of each subscale, or between cases and controls. CONCLUSIONS Our findings suggest that the common genotypes of GSTM1, GSTT1, ALDH2, and PON1 are of little importance to CSP in a Japanese population.
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Affiliation(s)
- Saeko Fujimori
- Department of Public Health, Faculty of Life Sciences, Kumamoto University, Japan
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20
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Nogué Xarau S, Dueñas Laita A, Ferrer Dufol A, Fernández Solà J. [Multiple chemical sensitivity]. Med Clin (Barc) 2010; 136:683-7. [PMID: 21367433 DOI: 10.1016/j.medcli.2010.04.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 04/05/2010] [Accepted: 04/20/2010] [Indexed: 11/29/2022]
Affiliation(s)
- Santiago Nogué Xarau
- Sección de Toxicología, Servicio de Urgencias, Hospital Clínic, Barcelona, España.
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21
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Harada K, Hasegawa A, Wei CN, Minamoto K, Noguchi Y, Hara K, Matsushita O, Noda K, Ueda A. A Review of Indoor Air Pollution and Health Problems from the Viewpoint of Environmental Hygiene: Focusing on the Studies of Indoor Air Environment in Japan Compared to Those of Foreign Countries. ACTA ACUST UNITED AC 2010. [DOI: 10.1248/jhs.56.488] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Koichi Harada
- Department of Biomedical Laboratory Sciences, Faculty of Life Sciences, Kumamoto University
| | - Asako Hasegawa
- Graduate School of Science and Technology, Kumamoto University
| | - Chan-Nian Wei
- Department of Prevention and Environmental Medicine, Faculty of Life Sciences, Kumamoto University
| | - Keiko Minamoto
- Department of Prevention and Environmental Medicine, Faculty of Life Sciences, Kumamoto University
| | - Yukari Noguchi
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University
| | - Kunio Hara
- Faculty of Regional Health Therapy, Teikyo Heisei University
| | - Osamu Matsushita
- Department of Public Policy, Graduate School of Law, Kumamoto University
| | - Kosuke Noda
- Innovation Promotion Office, Kumamoto Software Co. Ltd
| | - Atsushi Ueda
- Department of Prevention and Environmental Medicine, Faculty of Life Sciences, Kumamoto University
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