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From the Townsend Letter
November 2014

Nine Research Areas That Need to Be Applied to or Expanded in the Study of Multiple Chemical Sensitivities
by Laurie Dennison Busby, BEd
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MCP-1 and the MCP-1 Stimulation Test
Monocyte chemotactic protein-1 (MCP-1) acts as a chemoattractant, promoting infiltration of immune cells, and as a basophil agonist, which leads to histamine release. MCP-1 is elevated in postviral CFS, MCS, HT, lupus, CU, some types of asthma, and during infections (EBV, HHV-6).39-46
   
In a study of patients with allergic rhinitis, submucosa had increased MCAF/MCP-1 and associated histamine release from basophils, suggesting that MCP-1 "is stored in human nasal mucosa, possibly participates in protracted histamine release from basophils and in the pathogenesis of perennial allergic rhinitis."47
   
While in one study of atopic asthmatics, who had increased total IgE and eosinophils, a significant association with MCP-1 was not found in all patients; in a different study of asthmatics, MCP-1 was elevated in the serum during asymptomatic periods and further elevated during acute attacks.44 In addition, when testing patients with chemically (dissocyanate)-induced asthma, one team found that MCP-1 stimulation assays (MSA) with dissocyanate-human serum albumin (DIISO-HSA) were more sensitive than DIISO-HSA antibody tests in identifying patients.48
   
Potentially, MSA might be positive in those who developed MCS from sick building syndrome or another lengthy exposure.

Other Potential Non-IgE-Mediated Immune Mechanisms
T cells or inflammatory cytokines may play a role in some patients. T cells have been associated with non-IgE-mediated delayed-type hypersensitivity reactions and with ADR. In one CFS study, in response to intradermal administration of common antigens such as Candida albicans and in vitro T cell activation tests, patients had a delayed-type hypersensitive (DTH) response, and "the intensity of the DTH response correlated with the number of T-cells activated in vitro."49
   
Increased inflammatory cytokines have been found in the blood in several CFS cohorts and an MCS cohort. However, preliminary tests did not find increased cytokines in nasal fluid in one CFS cohort with rhinitis.39,50,51
   
While the exact mechanisms in MCS and CFS have yet to be elucidated, research on these diseases is getting closer to answers and the above pathways have the potential to play a role.
   
As researchers begin to gain more understanding of non-IgE-mediated hypersensitivity pathways, doctors may eventually be able to more readily recognize patients with nonallergic hypersensitivity reactions. Once doctors become familiar with some of the associations in these diseases, including the increased frequency of HT-related autoantibodies in patients with hypersensitivities, maybe someday patients, especially female patients with concurrent Hashimoto's thyroiditis, will be able go to their doctors and say, "I have a hard time taking medicine because I tend to react to everything," and doctors will no longer tell them, as they have told me, "That's impossible!"

Notes
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25.    Kimata H. Effect of exposure to volatile organic compounds on plasma levels of neuropeptides, nerve growth factor, and histamine in patients with self-reported multiple chemical sensitivity. Int J Hyg Environ Health. 2004;207(2):159–163.
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28.    Samareh Fekri M, Shokoohi M, Gozashti MH, et al. Association between anti-thyroid peroxidase antibody and asthma in women. Iran J Allergy Asthma Immunol. 2012;11(3):241–245. doi:011.03/ijaai.241245
29.    Comi AL, Tedeschi A, Lorini M, Miadonna A. Novel clinical and serological aspects in non-allergic asthma. Respir Med. 2007;101(12):2526–2533.
30.    Viswsnathan RK, Biagtan MJ, Mathur SK. The role of autoimmune testing in chronic idiopathic urticaria. Ann Allergy Asthma Immunol. 2012;108(5):337–341.
31.    Jang AS, Park JS, Lee JH, Park SW, Kim DJ, Park CS. Autologous serum skin test for autoantibodies is associated with airway hyperresponsiveness in patients with asthma. Respiration. 2007;74(3)293–296.
32.    Comert S, Celebioglu E, Karakava G, Kalvoncu AE. The general characteristics of acute urticaria attacks and the factors predictive of progression to chronic urticaria. Allergol Immunopathol (Madr). 2012;2013;41(4):239–245. pii:S0301-0546(12)00179-6. doi:10.1016/j.aller.2012.05.007.
33.    Vohra S, Sharma NL, Mahaian VK, Shanker V. Clinicoepidemiologic features of chronic urticaria in patients having positive verses negative autologous serum skin test: a study of 100 Indian patients. Indian J Dermatol Venereol Leprol. 2011;77(2):156–159. doi:10.4103/0378-6323.77454.
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39.    Kerr JR, Tyrrell DA. Cytokines in parvovirus B19 infection as an aid to understanding chronic fatigue syndrome. Curr Pain Headache Res. 2003;7(5):333–341.
40.    DeLuca C, Scordo MG, Cesareo E, Pastore S, Mariani S. Biological definition of multiple chemical sensitivity from redox state and cytokine profiling and not from polymorphisms of xenobiotic-metabolizing enzymes. Toxicol Appl Pharmacol. 2010;248(3):285–292. doi:10.1016/j.taap.2010.04.017.
41.    Kemp EH, Metcalfe RA, Smith KA, Woodroofe MN, Watson PF, Weetman AP. Detection and localization of chemokine gene expression in autoimmune thyroid disease. Clin Endocrinol (Oxf). 2003;59(2):207–213.
42.    Kaneko H, Ogasawana H, Naito T, et al. Circulating levels of beta-chemokines in systemic lupus erythema toss. L Rheumatol. 1999;26(3):568–573.
43.    Santos JC, de Brito CA, Futata EA, et al. Up-regulation of chemokine C-C ligand 2 (CCL2) and C-X-C chemokine 8 (CXCL8) expression by monocytes in chronic idiopathic urticaria. Clin Exp Immunol. 2012;167(1):129–136.
44.    Chan CK, Kuo ML, Yeh KW, et al. Sequential evaluation of serum monocyte chemotactic protein 1 among a symptomatic state and acute exacerbation and remission of asthma in children. J Asthma. 2009;46(3):225–8. doi:10.1080/02770900802553805.
45.    Gaudreault E, Fiola S, Olivier M, Gosselin J. Epstein-Barr virus induces MCP-1 secretion by human monocytes via TLR2. J Virol. 2007;81(15):8016–8024.
46.    Arena A, Stassi G, Speranza A, Ianello D, Mastroeni P. Modulatory effect of HHV-6 on MCP-1 production by human monocytes. New Microbiol. 2002;25(3):335–340.
47.    Fujikura T, Otsuka H. Monocytes chemotactic and activating factor/monocyte chemoattractant protein-1- mediated histamine release from human nasal mucosa. Arch Otolaryngeal Head Neck Surg. 1998;124(12):1331–1335.
48.    Bernstein DI, Cartier A, Cote J, et al. Dissocyanate antigen-stimulated monocyte chemoattractant protein-1 synthesis has greater test efficacy than specific antibodies for identification of dissocyanate asthma. Am J Respir Crit Care Med. 2002;166(4):445–450.
49.    Brunet JL, Fatoohi F, Liaudet AP, Cozon GJ. Role of pathological delayed-type hypersensitivity in chronic fatigue syndrome: importance of the evaluation of lymphocyte activation by flow cytometry and the measurement of urinary neopterin. Allerg Immunol (Paris). 2002;34(2):38–44.
50.    Dantoft TM, Elberling J, Brix S, Szecsi PB, Vesterhauge S, Skovbjerg S. An elevated pro-inflammatory cytokine profile in multiple chemical sensitivity. Psychoneuroendocrinology. 2014;40:140–150. doi:10.1016/j.psyneuron.2013.11.012.
51.    Repka-Ramirez S, Naranch K, Park YJ, Clauw D, Baraniuk JN. Cytokines in nasal lavage fluids from acute sinusitis, allergic rhinitis, and chronic fatigue syndrome subjects. Allergy Asthma Proc. 2002;23(3):185–190.

© 2014 Laurie Dennison Busby, BEd

Laurie Busby received a BEd from the University of Missouri. At age 30, she developed chronic fatigue syndrome and the hypersensitivities that sometimes accompany it. Shortly thereafter, her aunt, a nurse anesthetist, handed her a huge medical dictionary and some studies, insisting that Laurie learn how to read them because she had something with no answers. Since that time, Laurie has asked for several tests that have given her incredible clues about her illness, conducted a family medical health survey among patients, testified before the CFS Advisory Committee to the US Department of Health and Human Services, and started a chronic illness blog, cfsfmmcsandrelatedstudies.tumblr.com, in an attempt to share what she has learned.

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