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Wennervaldt M, Vaher H, Ahlström MG, Bischofberger N, Menné T, Thyssen JP, Johansen JD, Bonefeld CM. Subclinical immune responses to nickel in sensitized individuals-a dose-response study. Contact Dermatitis 2024; 91:1-10. [PMID: 38577784 DOI: 10.1111/cod.14549] [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: 11/17/2023] [Revised: 02/10/2024] [Accepted: 03/08/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Nickel is the leading cause of contact allergy in Europe, with 14.5% of the adult population being sensitized. Despite regulations limiting nickel release from consumer items, the incidence and prevalence of nickel allergy remain high. OBJECTIVE To investigate the clinical and subclinical immune response to low-dose nickel exposure on nickel pre-exposed skin to assess the adequacy of current regulatory limits. METHOD Nickel-allergic and healthy controls were patch tested with nickel twice with a 3-4 weeks interval. The first exposure used the diagnostic concentration of 2000 μg/cm2 nickel sulphate, and the same skin areas were then re-exposed to 0.2, 0.5, 12.8 and 370 μg/cm2 nickel sulphate. After 48 h, the patch reactions were examined for clinical signs of eczema, and skin biopsies were collected. The transcriptomic immune profile was analysed with Nanostring nCounter and quantitative polymerase chain reaction. RESULTS Two nickel-allergic participants (15%) had clinical reactions to the regulatory limiting doses for nickel (0.2/0.5 μg/cm2) following re-exposure. There was immune activation in all skin areas following re-exposure to nickel, predominantly mediated by up-regulation of cytokines and chemokines. In all nickel re-exposed skin areas, 81 genes were up-regulated independent from the clinical response. In skin areas exposed to 0.2 μg/cm2, 101 immune-related genes were differentially expressed, even when no clinical response was observed. Healthy controls showed up-regulation of three genes in response to nickel re-exposures without any clinical reactions. CONCLUSION Immune activation can be induced in skin with local memory to nickel upon challenge with nickel doses within the regulatory limits. Our findings suggest that the regulatory limits in the European nickel regulation may not provide sufficient protection for consumers against low-dose exposures.
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Affiliation(s)
- Michael Wennervaldt
- Department of Dermatology and Allergy, National Allergy Research Centre, Copenhagen University Hospital Herlev-Gentofte, Hellerup, Denmark
| | - Helen Vaher
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, The LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Malin G Ahlström
- Department of Dermatology and Allergy, National Allergy Research Centre, Copenhagen University Hospital Herlev-Gentofte, Hellerup, Denmark
| | - Nuno Bischofberger
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, The LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Torkil Menné
- Department of Dermatology and Allergy, National Allergy Research Centre, Copenhagen University Hospital Herlev-Gentofte, Hellerup, Denmark
| | - Jacob P Thyssen
- Department of Dermatology and Allergy, National Allergy Research Centre, Copenhagen University Hospital Herlev-Gentofte, Hellerup, Denmark
| | - Jeanne D Johansen
- Department of Dermatology and Allergy, National Allergy Research Centre, Copenhagen University Hospital Herlev-Gentofte, Hellerup, Denmark
| | - Charlotte M Bonefeld
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, The LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
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Ribeiro R, Teófilo V, Moreira S, Pinho P, Norton P, Pereira T. Managing Allergic Nickel Dermatitis in Occupational Settings: A Case Report. LA MEDICINA DEL LAVORO 2024; 115:e2024021. [PMID: 38922838 PMCID: PMC11223567 DOI: 10.23749/mdl.v115i3.15931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
Contact dermatitis is a common cutaneous inflammatory condition, triggered by exposure to irritant substances or allergens. Nickel is the most prevalent allergen, a metal widely used in accessories, furniture, office materials, food and in industry, with multiple exposure pathways, making it difficult to assess which exposure is causing allergic dermatitis. Here, we report a case of an administrative worker with chronic hand eczema, limited to the radial metacarpophalangeal region of the left hand, caused by occupational exposure to nickel, confirmed by nickel deposition test on the hand and a positive test with a metallic stapler used at her workplace.
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Affiliation(s)
- Rui Ribeiro
- Occupational Health Service of Porto Hospital and University Center, Porto, Portugal
| | - Vanessa Teófilo
- Occupational Health Service of Porto Hospital and University Center, Porto, Portugal
| | - Salomé Moreira
- Occupational Health Service of Porto Hospital and University Center, Porto, Portugal
| | - Paulo Pinho
- Occupational Health Service of Porto Hospital and University Center, Porto, Portugal
| | - Pedro Norton
- Occupational Health Service of Porto Hospital and University Center, Porto, Portugal
| | - Teresa Pereira
- Dermatology Department of Braga Hospital Center, Braga, Portugal
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Chan CX, Hamann CR. Nickel release from hairdressing tools in the United States. Contact Dermatitis 2023; 89:480-483. [PMID: 37667843 DOI: 10.1111/cod.14411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/07/2023] [Accepted: 08/14/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Hairdressers have a high prevalence of contact dermatitis, especially to nickel. The presence of nickel in hairdressing tools has been evaluated in the European Union, where the government limits nickel release levels from objects. OBJECTIVES The aim of this study is to qualitatively investigate nickel release in hairdresser tools in both rural and urban United States, a country without nickel release legislation. METHODS Hairdressers and individuals with hairdressing tools were invited to participate. Metallic parts of each tool were tested with dimethylglyoxime (DMG), which detects nickel release. Data on tool cost were recorded. RESULTS A total of 89 tools from 9 salons and 2 over-the-counter sets were tested. Twenty-four (27%) tested positive: trimmers (100%), curling irons (100%), clippers (50%), hair clips (36%), texturizing shears (26%), and trimming shears (4%). Nickel was detected in both salon and over-the-counter tools, and rural and urban salons. Nickel-releasing tools were cheaper than DMG-negative tools of the same type. CONCLUSIONS Our findings help explain the high prevalence of contact dermatitis among hairdressers, alert clinicians to consider occult occupational nickel when assessing patients with allergic contact dermatitis, reinforces the importance of using barrier protection including gloves when handling hairdressing tools including at home, and augments impetus for more legislation regulating common allergens.
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Affiliation(s)
- Cynthia X Chan
- Division of Dermatology, Montefiore Medical Center, Bronx, New York, USA
- Department of Dermatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Carsten R Hamann
- Department of Dermatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
- Contact Dermatitis Institute, Phoenix, Arizona, USA
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Peacock CJH, Fu H, Asopa V, Clement ND, Kader D, Sochart DH. The effect of Nickel hypersensitivity on the outcome of total knee arthroplasty and the value of skin patch testing: a systematic review. ARTHROPLASTY 2022; 4:40. [PMID: 36050799 PMCID: PMC9438335 DOI: 10.1186/s42836-022-00144-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
To assess the Nickel sensitizing potential of total knee arthroplasty (TKA), explore the relationship between hypersensitivity and clinical outcomes, and evaluate the utility of skin patch testing pre- and/or postoperatively.
Materials and methods
A literature search was performed through EMBASE, Medline and PubMed databases. Articles were screened independently by two investigators. The level of evidence of studies was assessed using the Oxford Centre for Evidence-Based Medicine Criteria and the quality evaluated using the Methodological Index for Non-randomized Studies and Cochrane risk-of-bias tools.
Results
Twenty studies met the eligibility criteria, reporting on 1354 knee arthroplasties. Studies included patients undergoing primary or revision TKA, pre- and/or postoperatively, and used patch testing to identify Nickel hypersensitivity. Prevalence of Nickel hypersensitivity ranged from 0% to 87.5%. One study compared the prevalence of Nickel hypersensitivity in the same patient group before and after surgery and noted newly positive patch test reactions in three patients (4.2%). Three studies reported lower prevalence of Nickel hypersensitivity in postoperative patients compared to preoperative ones. Seven studies suggested that hypersensitivity might cause adverse clinical outcomes, but six did not support any relationship. Seven studies recommended preoperative patch testing in patients with history of metal allergy, and nine concluded that testing may be valuable postoperatively.
Conclusions
Patients undergoing TKA with no prior history of metal hypersensitivity do not seem to be at an increased risk of developing Nickel hypersensitivity, and there is conflicting evidence that patients with pre-existing hypersensitivity are more likely to experience adverse outcomes. Patch testing remains the most commonly used method for diagnosing hypersensitivity, and evidence suggests preoperative testing in patients with history of metal allergy to aid prosthesis selection, and postoperatively in patients with suspected hypersensitivity once common causes of implant failure have been excluded, since revision with hypoallergenic implants may alleviate symptoms.
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Bogdanova-Bennett A, Sagi A, Asopa V, Field RE, Sochart DH. Nickel hypersensitivity and skin patch testing in total hip replacement surgery: a systematic review. EFORT Open Rev 2021; 6:825-838. [PMID: 34760283 PMCID: PMC8559563 DOI: 10.1302/2058-5241.6.210051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Approximately 60,000 cemented femoral stems are implanted in the UK each year with the majority being manufactured from stainless steel containing 10–15% nickel. Nickel hypersensitivity has been reported in up to 13% of the general population and there is a concern that nickel hypersensitivity might adversely affect the outcome of total hip replacement (THR). We reviewed the current literature on the potential link between nickel hypersensitivity and THR complications, and the usefulness of patch testing. We conducted a literature search in PubMed, MEDLINE and EMBASE databases. The level of evidence and the quality of the selected studies were assessed using the Oxford Centre for Evidence-Based Medicine Criteria and the Methodological Index for Non-Randomised Studies tool, respectively. Twenty-six studies met the inclusion criteria, reporting on 1852 patients who underwent primary or revision THR. All studies detailed skin patch testing and recorded prevalence of nickel hypersensitivity from 1.5% to 33.3%. Five studies reported a rise in Nickel hypersensitivity following THR, while four reported a decreased prevalence post-operatively. Eight studies concluded that metal hypersensitivity could have developed following THR, while seven studies did not support a link between metal hypersensitivity and THR complications. Four of the studies recommended routine patch testing pre-operatively, but three others concluded that routine patch testing was not indicated. We have not identified a link between nickel hypersensitivity and THR complications, and the role of patch testing remains unclear. Further large-scale studies would be required to investigate this relationship and to clarify the role of patch testing in facilitating implant selection.
Cite this article: EFORT Open Rev 2021;6:825-838. DOI: 10.1302/2058-5241.6.210051
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Affiliation(s)
| | - Amit Sagi
- Academic Surgical Unit, South West London Elective Orthopaedic Centre, Epsom, UK
| | - Vipin Asopa
- Academic Surgical Unit, South West London Elective Orthopaedic Centre, Epsom, UK
| | - Richard E Field
- Academic Surgical Unit, South West London Elective Orthopaedic Centre, Epsom, UK
| | - David H Sochart
- Academic Surgical Unit, South West London Elective Orthopaedic Centre, Epsom, UK
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Basso P, Mauro M, Miani A, Belloni Fortina A, Corradin MT, Larese Filon F. Sensitization to nickel in the Triveneto region: Temporal trend after European Union regulations. Contact Dermatitis 2020; 82:247-250. [DOI: 10.1111/cod.13450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 12/01/2019] [Accepted: 12/04/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Paolo Basso
- Unità Clinico Operativa di Medicina del LavoroUniversità degli Studi di Trieste Trieste Italy
| | - Marcella Mauro
- Unità Clinico Operativa di Medicina del LavoroUniversità degli Studi di Trieste Trieste Italy
| | - Andrea Miani
- Unità Clinico Operativa di Medicina del LavoroUniversità degli Studi di Trieste Trieste Italy
| | | | - Maria T. Corradin
- Divisione di DermatologiaOspedale Santa Maria degli Angeli Pordenone Italy
| | - Francesca Larese Filon
- Unità Clinico Operativa di Medicina del LavoroUniversità degli Studi di Trieste Trieste Italy
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Occupationally Related Nickel Reactions: A Retrospective Analysis of the North American Contact Dermatitis Group Data 1998-2016. Dermatitis 2020; 30:306-313. [PMID: 31524759 DOI: 10.1097/der.0000000000000516] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND The epidemiology of nickel allergy in occupational settings is not well understood. OBJECTIVE The aim of the study was to characterize occupationally related nickel allergy (ORNA). METHODS This is a retrospective cross-sectional analysis of 44,378 patients patch tested by the North American Contact Dermatitis Group from 1998 to 2016. Characteristics of individuals with ORNA were compared with those with non-ORNA (NORNA). RESULTS A total of 7928 (18.2%) individuals were positive to nickel sulfate 2.5%. Two hundred sixty-eight (3.4%) had ORNA. As compared with NORNA, ORNA was statistically associated with the male sex (41.0% vs 12.9%, P < 0.001), a diagnosis of irritant contact dermatitis (22.4% vs 12.0%, P < 0.001), and no history of eczema (81.7% vs 75.7%, P = 0.0217). The most common sites of ORNA dermatitis were hand (39.9%) and arm (18.1%), which were significantly more common than in NORNA (P < 0.0001). Sixteen industry categories and 22 occupation categories were identified for ORNA; the most common industries were durable goods manufacturing (24.6%) and personal services (15.7%), and the most frequent occupations were hairdressers/cosmetologists/barbers (14.3%), machine operators (9.3%), and health care workers (7.1%). Overall 30% of ORNA occupations were in metalworking. Of 215 ORNA sources identified, instruments/phones/other equipment (16.3%), vehicles/machinery (15.8%), and tools (15.3%) were the most common. CONCLUSIONS Occupational nickel allergy is distinct from nonoccupational nickel allergy.
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Nickel: Human Health and Environmental Toxicology. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17030679. [PMID: 31973020 PMCID: PMC7037090 DOI: 10.3390/ijerph17030679] [Citation(s) in RCA: 447] [Impact Index Per Article: 111.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 12/20/2022]
Abstract
Nickel is a transition element extensively distributed in the environment, air, water, and soil. It may derive from natural sources and anthropogenic activity. Although nickel is ubiquitous in the environment, its functional role as a trace element for animals and human beings has not been yet recognized. Environmental pollution from nickel may be due to industry, the use of liquid and solid fuels, as well as municipal and industrial waste. Nickel contact can cause a variety of side effects on human health, such as allergy, cardiovascular and kidney diseases, lung fibrosis, lung and nasal cancer. Although the molecular mechanisms of nickel-induced toxicity are not yet clear, mitochondrial dysfunctions and oxidative stress are thought to have a primary and crucial role in the toxicity of this metal. Recently, researchers, trying to characterize the capability of nickel to induce cancer, have found out that epigenetic alterations induced by nickel exposure can perturb the genome. The purpose of this review is to describe the chemical features of nickel in human beings and the mechanisms of its toxicity. Furthermore, the attention is focused on strategies to remove nickel from the environment, such as phytoremediation and phytomining.
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Thyssen JP, Ahlström MG, Bruze M, Rustemeyer T, Lidén C. Metals. Contact Dermatitis 2020. [DOI: 10.1007/978-3-319-72451-5_35-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ahlström MG, Thyssen JP, Wennervaldt M, Menné T, Johansen JD. Nickel allergy and allergic contact dermatitis: A clinical review of immunology, epidemiology, exposure, and treatment. Contact Dermatitis 2019; 81:227-241. [DOI: 10.1111/cod.13327] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Malin G. Ahlström
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Jacob P. Thyssen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
- Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Michael Wennervaldt
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Torkil Menné
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Jeanne D. Johansen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
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Epidemiology of nickel sensitivity: Retrospective cross-sectional analysis of North American Contact Dermatitis Group data 1994-2014. J Am Acad Dermatol 2018; 80:701-713. [PMID: 30342160 DOI: 10.1016/j.jaad.2018.09.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/30/2018] [Accepted: 09/29/2018] [Indexed: 11/21/2022]
Abstract
BACKGROUND Nickel is a common allergen. OBJECTIVE To examine the epidemiology of nickel sensitivity in North America. METHODS Retrospective, cross-sectional analysis of 44,097 patients patch tested by the North American Contact Dermatitis Group from 1994 to 2014. Nickel sensitivity was defined as a positive patch test for nickel. We evaluated the frequency of nickel sensitivity and patient demographics. For each positive reaction to nickel, we tabulated clinical relevance, occupational relatedness, and exposure sources. RESULTS The average frequency of nickel sensitivity was 17.5% (1994-2014). Nickel sensitivity significantly increased over time (from 14.3% in 1994-1996 to 20.1% in 2013-2014 [P < .0001]). Nickel-sensitive patients were significantly more likely to be female, young, nonwhite, and atopic (have eczema and asthma) and/or have dermatitis affecting the face, scalp, ears, neck, arm, or trunk (P values ≤ .0474). Overall, 55.5% of reactions were currently clinically relevant; this percentage significantly increased over time (from 44.1% in 1994-1996 to 51.6% in 2013-2014 [P < .0001]). The rate of occupational relatedness was 3.7% overall, with a significant decrease over time (from 7.9% in 1994-1996 to 1.9% in 2013-2014 [P < .0001]). Jewelry was the most common source of nickel contact. LIMITATIONS Tertiary referral population. CONCLUSIONS Nickel allergy is of substantial public health importance in North America. The frequency of nickel sensitivity in patients referred for patch testing has significantly increased over a 20-year period.
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Fréling E, Poreaux C, Valois A, Schmutz JL, Barbaud A. Occupational contact dermatitis caused by nickel in scratchcards. Contact Dermatitis 2015. [DOI: 10.1111/cod.12452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Estelle Fréling
- Dermatology Department; University Hospital of Nancy, Pôle des Spécialités Médicales, Université de Lorraine, Brabois Hospital; Vandoeuvre les Nancy 54500 France
| | - Claire Poreaux
- Dermatology Department; University Hospital of Nancy, Pôle des Spécialités Médicales, Université de Lorraine, Brabois Hospital; Vandoeuvre les Nancy 54500 France
| | - Aude Valois
- Dermatology Department; University Hospital of Nancy, Pôle des Spécialités Médicales, Université de Lorraine, Brabois Hospital; Vandoeuvre les Nancy 54500 France
| | - Jean-Luc Schmutz
- Dermatology Department; University Hospital of Nancy, Pôle des Spécialités Médicales, Université de Lorraine, Brabois Hospital; Vandoeuvre les Nancy 54500 France
| | - Annick Barbaud
- Dermatology Department; University Hospital of Nancy, Pôle des Spécialités Médicales, Université de Lorraine, Brabois Hospital; Vandoeuvre les Nancy 54500 France
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Güner E, Kalkan G, Meral E, Baykır M. The triggering role of allergic contact dermatitis in discoid lupus erythematosus. Cutan Ocul Toxicol 2013; 32:194-9. [DOI: 10.3109/15569527.2012.751390] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Thyssen JP, Gawkrodger DJ, White IR, Julander A, Menné T, Lidén C. Coin exposure may cause allergic nickel dermatitis: a review. Contact Dermatitis 2012; 68:3-14. [PMID: 22762130 DOI: 10.1111/j.1600-0536.2012.02127.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Nickel is used in coins because the metal has beneficial properties, including price, colour, weight, and corrosion resistance, and also because it is easy to stamp. It has often been claimed that the duration of skin contact with coins is too short to cause nickel release and dermatitis. However, it is well known by dermatologists specialized in occupational skin diseases, and by their nickel-allergic patients, that hand eczema in cashiers and other professionals who handle coins may be caused or aggravated by nickel release from coins. In this review, we present evidence from past studies showing that nickel-containing coins can indeed pose a risk for those who handle them. For protection of the health of consumers, cashiers, and other workers who handle coins, it is suggested that coins without nickel release should be used as a substitute for the high nickel-releasing coins currently in widespread use. The key risk factor in this situation is the ability of metal alloys in coins to release nickel and contaminate the skin after repeated contact from coin handling.
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Affiliation(s)
- Jacob P Thyssen
- Department of Dermato-Allergology, National Allergy Research Centre, Copenhagen University Hospital Gentofte, DK-2900 Hellerup, Denmark.
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Rui F, Bovenzi M, Prodi A, Fortina AB, Romano I, Corradin MT, Filon FL. Concurrent sensitization to metals and occupation. Contact Dermatitis 2012; 67:359-66. [PMID: 22577760 DOI: 10.1111/j.1600-0536.2012.02100.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Cosensitization to nickel, cobalt and chromium occurs in the general population and in some occupational groups. OBJECTIVES To estimate the isolated and concurrent occurrence of nickel, cobalt and chromium contact sensitization and their association with individual and occupational risk factors. PATIENTS/METHODS Twelve thousand four hundred and ninety-two patients were patch tested with the European baseline series between 1997 and 2004 in north-eastern Italy. The associations between patch test results and patient characteristics and occupations were investigated by means of multinomial logistic regression analysis. RESULTS Of the patients, 34.7% (4334 patients) had one or more positive patch test reactions to metals. As compared with those with negative reactions to all three metals, nickel sensitization was significantly higher in females than in males, not only as monosensitization, but also as cosensitization with cobalt, with chromium, or with both metals. Building and related trades workers showed positive reactions to chromium + nickel [odds ratio (OR) 1.99; 95% confidence interval (CI) 1.05-3.76) and chromium + cobalt (OR 2.61; 95% CI 1.46-4.67]. Cleaning workers showed a high prevalence of nickel, chromium, nickel + chromium and nickel + cobalt + chromium cosensitization (ORs 1.29, 1.66, 2.11, and 1.79, respectively). An excess risk for cosensitization to all three metals was found in textile and leather workers (OR 2.19; 95% CI 1.10-4.33), and in bartenders (OR 2.10; 95% CI 1.03-4.26). CONCLUSIONS Some occupational groups are more likely to develop nickel, cobalt and chromium cosensitization.
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Affiliation(s)
- Francesca Rui
- Clinical Unit of Occupational Medicine, Department of Medical Sciences, University of Trieste, Trieste 34129, Italy.
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Thyssen JP. Nickel and cobalt allergy before and after nickel regulation - evaluation of a public health intervention. Contact Dermatitis 2011; 65 Suppl 1:1-68. [DOI: 10.1111/j.1600-0536.2011.01957.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Mendes A, Madureira J, Neves P, Carvalhais C, Laffon B, Teixeira JP. Chemical exposure and occupational symptoms among Portuguese hairdressers. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2011; 74:993-1000. [PMID: 21707424 DOI: 10.1080/15287394.2011.582027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hairdressing is predominantly a female activity, in which several chemicals are handled, some of which are known to be allergenic and potentially carcinogenic. Several epidemiological studies showed an association between occupational exposure to chemicals in hairdressing salons and skin and respiratory-tract conditions. The aim of this study were to characterize the occupational exposure to total volatile organic compounds (VOC) and ammonia (NH₃) in 50 Portuguese hairdressers' salons and to analyze the prevalence of respiratory and skin symptoms in 134 hairdressing professionals. Data indicated that internal sources of total VOC are mainly due to indoor sources, with average concentrations (1.4 mg/m³) above the Portuguese reference levels (0.6 mg/m³). Of the hairdressers' salons studied, 4% had a mean NH₃ concentration higher than Portuguese (20 ppm) and American Conference of Industrial Hygienists (ACGIH) (25 ppm) reference levels. Hand dermatitis was the occupational symptom most reported by hairdressers (50%), followed by eye irritation (43%). The results of this study suggest that hairdressers' occupational activities are linked with higher risk of developing hand and wrist/arm dermatitis and symptoms in the upper respiratory tract. The proper use of disposable gloves, hands, wrists, and arms skin monitoring, and the frequent use of moisturizers in the workplace are effective measures to prevent the occurrence of dermatitis in these professionals. Displacement ventilation and/or local exhaust with adequate air exchange rate are recommended particularly in technical areas where hairdressing chemicals are mixed.
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Affiliation(s)
- Ana Mendes
- Environmental Health Department, National Institute of Health Doutor Ricardo Jorge, Porto, Portugal
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Thyssen JP, Menné T. Metal allergy--a review on exposures, penetration, genetics, prevalence, and clinical implications. Chem Res Toxicol 2010; 23:309-18. [PMID: 19831422 DOI: 10.1021/tx9002726] [Citation(s) in RCA: 247] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The prevalence of metal allergy is high in the general population, and it is estimated that up to 17% of women and 3% of men are allergic to nickel and that 1-3% are allergic to cobalt and chromium. Among dermatitis patients, the prevalence of metal allergy is even higher. Metal allergy is mainly an environmental disorder although null mutations in the filaggrin gene complex were recently found to be associated with nickel allergy and dermatitis. Environmental metal exposures include jewelry, buttons, clothing fasteners, dental restorations, mobile phones, and leather. Although consumer exposure is responsible for most cases of metal allergy, the importance of occupational metal exposure remains present and should always be taken into consideration when one interprets allergic patch test reactions to metals. Traditionally, nickel, cobalt, and chromium have been the most important contact allergens. However, recently, gold and palladium have drawn much attention as the prevalence of contact allergy to these metals is high. Palladium allergy is mainly a result of cross-sensitization to nickel, whereas gold allergy is rarely clinically relevant when one takes its high prevalence into account. The epidemiology of metal allergy has recently changed in Europe as nickel allergy among ear-pierced Danish women has decreased following regulatory intervention on nickel release from consumer products. In the United States, the prevalence of nickel allergy is still increasing, which may be explained by the absence of regulation. The prevalence of chromium allergy is increasing in the United States, Singapore, and Denmark among dermatitis patients. This increase is significantly associated with leather exposure in Denmark. Metal allergy may result in allergic contact dermatitis and systemic allergic (contact) dermatitis. Furthermore, metal allergy has been associated with device failure following insertion of intracoronary stents, hip and knee prostheses, as well as other implants. This area is in need of more research.
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Affiliation(s)
- Jacob P Thyssen
- National Allergy Research Centre and Department of Dermato-Allergology, Gentofte Hospital, University of Copenhagen, Niels Andersens Vej 65, 2900 Hellerup, Denmark.
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Rui F, Bovenzi M, Prodi A, Belloni Fortina A, Romano I, Peserico A, Corradin MT, Carrabba E, Larese Filon F. Nickel, cobalt and chromate sensitization and occupation*. Contact Dermatitis 2010; 62:225-31. [DOI: 10.1111/j.1600-0536.2009.01650.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hughson GW, Galea KS, Heim KE. Characterization and assessment of dermal and inhalable nickel exposures in nickel production and primary user industries. ACTA ACUST UNITED AC 2009; 54:8-22. [PMID: 19759172 DOI: 10.1093/annhyg/mep068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to measure the levels of nickel in the skin contaminant layer of workers involved in specific processes and tasks within the primary nickel production and primary nickel user industries. Dermal exposure samples were collected using moist wipes to recover surface contamination from defined areas of skin. These were analysed for soluble and insoluble nickel species. Personal samples of inhalable dust were also collected to determine the corresponding inhalable nickel exposures. The air samples were analysed for total inhalable dust and then for soluble, sulfidic, metallic, and oxidic nickel species. The workplace surveys were carried out in five different workplaces, including three nickel refineries, a stainless steel plant, and a powder metallurgy plant, all of which were located in Europe. Nickel refinery workers involved with electrolytic nickel recovery processes had soluble dermal nickel exposure of 0.34 microg cm(-2) [geometric mean (GM)] to the hands and forearms. The GM of soluble dermal nickel exposure for workers involved in packing nickel salts (nickel chloride hexahydrate, nickel sulphate hexahydrate, and nickel hydroxycarbonate) was 0.61 microg cm(-2). Refinery workers involved in packing nickel metal powders and end-user powder operatives in magnet production had the highest dermal exposure (GM = 2.59 microg cm(-2) soluble nickel). The hands, forearms, face, and neck of these workers all received greater dermal nickel exposure compared with the other jobs included in this study. The soluble nickel dermal exposures for stainless steel production workers were at or slightly above the limit of detection (0.02 microg cm(-2) soluble nickel). The highest inhalable nickel concentrations were observed for the workers involved in nickel powder packing (GM = 0.77 mg m(-3)), although the soluble component comprised only 2% of the total nickel content. The highest airborne soluble nickel exposures were associated with refineries using electrolytic processes for nickel recovery (GM = 0.04 mg m(-3) total nickel, containing 82% soluble nickel) and those jobs involving contact with soluble nickel compounds (GM = 0.02 mg m(-3) total nickel content, containing 76% soluble nickel). The stainless steel workers were exposed to low concentrations of relatively insoluble airborne nickel species (GM = 0.03 mg m(-3) total nickel, containing 1% soluble nickel). A statistically significant correlation was observed between dermal exposures for all anatomical areas across all tasks. In addition, the dermal and inhalable (total) nickel exposures were similarly associated. Overall, dermal exposures to nickel, nickel compounds, and nickel alloys were relatively low. However, exposures were highly variable, which can be explained by the inconsistent use of personal protective equipment, varying working practices, and different standards of automation and engineering controls within each exposure category.
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Affiliation(s)
- G W Hughson
- Exposure Assessment Section, Institute of Occupational Medicine, Edinburgh EH14 4AP, UK.
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Numismedica: Health Problems Caused by Coins. Am J Med Sci 2009; 337:445-50. [DOI: 10.1097/maj.0b013e31819e8791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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