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Kline JM, Arriaga-Gomez E, Yangdon T, Boo B, Landry J, Saldías-Montivero M, Neamonitaki N, Mengistu H, Silverio S, Zacheis H, Pasha D, Martinov T, Fife BT, Chatterjea D. Repeated dermal application of the common preservative methylisothiazolinone triggers local inflammation, T cell influx, and prolonged mast cell-dependent tactile sensitivity in mice. PLoS One 2020; 15:e0241218. [PMID: 33104726 PMCID: PMC7588120 DOI: 10.1371/journal.pone.0241218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/09/2020] [Indexed: 11/26/2022] Open
Abstract
Occupational exposure to toxic chemicals increases the risk of developing localized provoked vulvodynia-a prevalent, yet poorly understood, chronic condition characterized by sensitivity to touch and pressure, and accumulation of mast cells in painful tissues. Here, we topically sensitized female ND4 Swiss mice to the common household and industrial preservative methylisothiazolinone (MI) and subsequently challenged them daily with MI or acetone and olive oil vehicle on the labiar skin. MI-challenged mice developed significant, persistent tactile sensitivity and long-lasting local accumulation of mast cells alongside early, transient increases in CD4+ and CD8+ T cells, eosinophils, neutrophils, and increases in pro-inflammatory cytokines. Therapeutic administration of imatinib, a c-Kit inhibitor known to inhibit mast cell survival, led to reduced mast cell accumulation and alleviated tactile genital pain. We provide the first pre-clinical evidence of dermal MI-induced mast-cell dependent pain and lay the groundwork for detailed understanding of these intersections between MI-driven immunomodulation and chronic pain.
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Affiliation(s)
- Jaclyn M. Kline
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Erica Arriaga-Gomez
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Tenzin Yangdon
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Beebie Boo
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Jasmine Landry
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | | | - Nefeli Neamonitaki
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Hanna Mengistu
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Sayira Silverio
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Hayley Zacheis
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Dogukan Pasha
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
| | - Tijana Martinov
- Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Brian T. Fife
- Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Devavani Chatterjea
- Biology Department, Macalester College, Saint Paul, Minnesota, United States of America
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Botelheiro JC, Silverio S. Tratamento da doença de Kienbock com colapso cárpico (Lichtman IIIb) com osteotomia de encurtamento do radio - 16 casos. Rev Iberoam Cir Mano 2017. [DOI: 10.1055/s-0037-1607109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Objectivos. Rever os resultados das osteotomias de encurtamento do rádio efectuadas nos doentes com doença de Kienbock avançada (estadio IIIB).Material e métodos. Nos últimos 24 anos operámos 50 casos de doença de Kienbock com osteotomia de encurtamento do rádio. 16 tinham já colapso cárpico (Lichtman IIIB). Os seus processos clínicos e radiografias foram revistos.Resultados. Os bons resultados clínico obtidos em doentes só com colapso do semi-lunar (Lichtman IIIA) confirmam os da literatura, mas obtivemos resultados igualmente bons em casos já com colapso cárpico (Lichtman IIIB), que apresentamos.Conclusões. Os resultados aqui apresentados poderiam alargar as clássicas indicações da osteotomia de encurtamento do rádio no tratamento da doença de Kienbock
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Botelheiro JC, Silverio S, Irisarri C. Fracturas e pseudartroses da apofise do unciforme – 10 casos. Rev Iberoam Cir Mano 2004. [DOI: 10.1055/s-0037-1606591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Se presentan 10 casos de fractura y pseudartrosis de la apofisis del hueso ganchoso. 9 han sido operados – excisión de la apofisis por vía palmar. 3, diagnosticados precozmente, habían sido inmovilizados pero no se obtuvo consolidación en ninguno de ellos, pero uno se quedo sin dolor. 7 fueron diagnosticados como pseudartrosis dolorosas o fracturas con varias semanas de evolución. De los 9 pacientes operados 8 quedaron asintomáticos. Así, la excisión quirúrgica nos parece el tratamiento de elección para las pseudartrosis y fracturas dolorosas de la apofisis del hueso ganchoso.
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