Multiple Chemical Sensitivity

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....

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Main Authors: Gesualdo M. Zucco, Richard L. Doty
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/12/1/46
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author Gesualdo M. Zucco
Richard L. Doty
author_facet Gesualdo M. Zucco
Richard L. Doty
author_sort Gesualdo M. Zucco
collection DOAJ
description 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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spelling doaj.art-18df19a409cc4c96945cce7645f32dbf2023-11-23T13:09:16ZengMDPI AGBrain Sciences2076-34252021-12-011214610.3390/brainsci12010046Multiple Chemical SensitivityGesualdo M. Zucco0Richard L. Doty1Department of Philosophy, Sociology, Education and Applied Psychology, University of Padova, 35100 Padova, ItalySmell and Taste Center, Department of Otorhinolaryngology, Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USAMultiple 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.https://www.mdpi.com/2076-3425/12/1/46multiple chemical sensitivitychemical intolerancetoxicant induced loss of toleranceprevalenceetiologiesassessment
spellingShingle Gesualdo M. Zucco
Richard L. Doty
Multiple Chemical Sensitivity
Brain Sciences
multiple chemical sensitivity
chemical intolerance
toxicant induced loss of tolerance
prevalence
etiologies
assessment
title Multiple Chemical Sensitivity
title_full Multiple Chemical Sensitivity
title_fullStr Multiple Chemical Sensitivity
title_full_unstemmed Multiple Chemical Sensitivity
title_short Multiple Chemical Sensitivity
title_sort multiple chemical sensitivity
topic multiple chemical sensitivity
chemical intolerance
toxicant induced loss of tolerance
prevalence
etiologies
assessment
url https://www.mdpi.com/2076-3425/12/1/46
work_keys_str_mv AT gesualdomzucco multiplechemicalsensitivity
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