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Khatib S, Mahdi I, Drissi B, Fahsi N, Bouissane L, Sobeh M. Tetraclinis articulata (Vahl) Mast.: Volatile constituents, antioxidant, antidiabetic and wound healing activities of its essential oil. Heliyon 2024; 10:e24563. [PMID: 38317922 PMCID: PMC10839871 DOI: 10.1016/j.heliyon.2024.e24563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/16/2023] [Accepted: 01/10/2024] [Indexed: 02/07/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a metabolic syndrome known to contribute to impaired wound healing. This condition can be further worsened by excessive melanin production, elastin degradation, and chronic infections at the wound site, potentially leading to melasma and diabetic dermopathy. The purpose of this study was to investigate the phytochemical profile and inhibitory effects of Tetraclinis articulata essential oil (TAEO) on target enzymes involved in diabetes pathogenesis and chronic wound remodeling, namely α-amylase, α-glucosidase, tyrosinase, and elastase, as well as its in vitro antibacterial activity. Gas chromatography and mass spectrometry (GC-MS) analysis of TAEO led to the identification of 46 volatile compounds, representing 96.61 % of TAEO. The major metabolites were bornyl acetate (29.48 %), α-pinene (8.96 %), germacrene D (7.70 %), and d-limonene (5.90 %). TAEO exhibited limited scavenging activity against DPPH free radicals, whereas the FRAP and ABTS assays indicated a relatively higher antioxidant activity. Remarkably, TAEO disclosed a promising in vitro antidiabetic activity against α-glucosidase with an IC50 value of 178 ± 1.6 μg/mL, which is comparable to the standard inhibitor acarbose (IC50 = 143 ± 1.1 μg/mL). In silico, molecular docking analysis against α-glucosidase identified 15 compounds that interacted with the enzyme's active site, whereas skin permeability and sensitization assessments indicated that 26 out of the 44 identified volatile compounds were predicted to be free from any skin sensitivity risk. On the other hand, moderate inhibitory activity was recorded against α-amylase, tyrosinase, and elastase. Notably, TAEO at 5 % significantly suppressed biofilm formation by P. aeruginosa, S. aureus, and E. faecalis, common skin pathogens associated with wound infections, and reduced their swarming motility. Our findings suggest that TAEO may hold the potential as a natural remedy for type 2 diabetes and its associated co-morbidities, especially chronic wounds.
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Affiliation(s)
- Sohaib Khatib
- Molecular Chemistry, Materials and Catalysis Laboratory, Faculty of Sciences and Technologies, Sultan Moulay Slimane University, Beni-Mellal, Morocco
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Ismail Mahdi
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Badreddine Drissi
- Molecular Chemistry, Materials and Catalysis Laboratory, Faculty of Sciences and Technologies, Sultan Moulay Slimane University, Beni-Mellal, Morocco
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Nidal Fahsi
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Latifa Bouissane
- Molecular Chemistry, Materials and Catalysis Laboratory, Faculty of Sciences and Technologies, Sultan Moulay Slimane University, Beni-Mellal, Morocco
| | - Mansour Sobeh
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
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Schubert S, Geier J, Brans R, Heratizadeh A, Kränke B, Schnuch A, Bauer A, Dickel H, Buhl T, Vieluf D, Wagner N, Worm M. Patch testing hydroperoxides of limonene and linalool in consecutive patients-Results of the IVDK 2018-2020. Contact Dermatitis 2023. [PMID: 37177844 DOI: 10.1111/cod.14332] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
BACKGROUND Hydroperoxides of limonene (Lim-OOHs) and linalool (Lin-OOHs) are potent contact sensitizers. OBJECTIVES To investigate the prevalence of positive patch test (PT) reactions to Lim-OOHs and Lin-OOHs in consecutive patients, their demographic factors and concomitant reactions. METHODS Between 7/2018 and 12/2020, Lim-OOHs 0.3% pet. and Lin-OOHs 1% pet. were patch tested in 5511 consecutive patients. We assessed PT reactivity and analysed data from patients with either positive or negative PTs to Lim-OOHs and Lin-OOHs. RESULTS Positive PT results to Lim-OOHs (n = 170, 3.1%) and Lin-OOHs (n = 483, 8.8%) were frequent. Most of the positive reactions were weak (LimOOHs n = 134/LinOOHs n = 429), and even more frequently, doubtful (n = 252/n = 578) or irritant reactions (n = 81/n = 178) were documented. PT reactivity to Lim-OOHs and Lin-OOHs was increased in patients with irritant reactions to sodium lauryl sulphate (SLS). The proportion of leg dermatitis and concomitant positive reactions to fragrances and essential oils was increased in patients with reactivity to these hydroperoxides. CONCLUSION The observed reaction pattern suggests that both test preparations display an irritant potential with an increased risk of false positive reactions. Preparations should be chemically monitored in order to reduce irritancy. Mindful interpretation of PT results and aimed patch testing of lower concentrations is recommended.
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Affiliation(s)
- Steffen Schubert
- Information Network of Departments of Dermatology (IVDK), Institute at the University Medical Centre Göttingen, Göttingen, Germany
| | - Johannes Geier
- Information Network of Departments of Dermatology (IVDK), Institute at the University Medical Centre Göttingen, Göttingen, Germany
| | - Richard Brans
- Institute for Interdisciplinary Dermatologic Prevention and Rehabilitation (iDerm) at the University of Osnabrück, Osnabrück, Germany
- Department of Dermatology, Environmental Medicine, and Health Theory, University of Osnabrück, Osnabrück, Germany
| | - Annice Heratizadeh
- Department of Dermatology and Allergy, Division of Immunodermatology and Allergy Research, Hannover Medical School, Hannover, Germany
| | - Birger Kränke
- Department of Dermatology and Venerology, Medical University of Graz, Graz, Austria
| | - Axel Schnuch
- Information Network of Departments of Dermatology (IVDK), Institute at the University Medical Centre Göttingen, Göttingen, Germany
| | - Andrea Bauer
- Department of Dermatology, University Allergy Center, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Heinrich Dickel
- Department of Dermatology, Venereology and Allergology, St. Josef Hospital, University Medical Center, Ruhr University Bochum, Bochum, Germany
| | - Timo Buhl
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - Dieter Vieluf
- Department of Allergology, Photodermatology and Occupational Dermatology, Dermatologikum Hamburg, Hamburg, Germany
| | - Nicola Wagner
- Department of Dermatology, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Margitta Worm
- Division of Allergy and Immunology, Department of Dermatology, Venereology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Iliev I, Nedelchev V, Gandova V, Stoyanova A. Influence of vegetation on the composition of essential oil from (Melissa officinalis L.). BIO WEB OF CONFERENCES 2023. [DOI: 10.1051/bioconf/20235801018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
Abstract
Lemon balm (Melissa officinalis L.) is a perennial plant of the family Lamiaceae, which is used in folk medicine and the food industry, as well as being processed to obtain essential oil. The aim of the special work is to monitor the influence of vegetation on the composition of the essential oil. The chemical composition of essential oils, obtained by steam distillation from lemon balm cultivated in North-eastern Bulgaria, has been determined. The plants were harvested in two periods of vegetation - the first at the end of June and second - at the end of August 2020. The main components in the oil from the first cut are geranial (26.41%), neral (19.55%), (E)-β-caryophyllene (17.46%), germacrene D (7.86%) and β-citronellal (3.24%). In the oil from the second cut, the main components are geranial (37.26%), neral (28.46%), (E)-β- caryophyllene (6.65%), geraniol (4.72%), and β-citronellal (3.04%). The oil from the second harvest has a high content of the main components of geranial, neral and geraniol and a lower content of (E)-β- caryophyllene and germacrene D. Variations in the amounts are also present in other compounds.
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Oyer-Peterson K, Ruiz de Porras DG, Han I, Delclos GL, Brooks EG, Afshar M, Whitworth KW. A pilot study of total personal exposure to volatile organic compounds among Hispanic female domestic cleaners. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2022; 19:1-11. [PMID: 34731075 PMCID: PMC8813894 DOI: 10.1080/15459624.2021.2000615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cleaners have an elevated risk for the development or exacerbation of asthma and other respiratory conditions, possibly due to exposure to cleaning products containing volatile organic compounds (VOCs) leading to inflammation and oxidative stress. This pilot study aimed to quantify total personal exposure to VOCs and to assess biomarkers of inflammation and pulmonary oxidative stress in 15 predominantly Hispanic women working as domestic cleaners in San Antonio, Texas, between November 2019 and July 2020. In partnership with a community organization, Domésticas Unidas, recruited women were invited to attend a training session where they were provided 3M 3500 passive organic vapor monitors (badges) and began a 72-hr sampling period during which they were instructed to wear one badge during the entire period ("AT," for All the Time), a second badge only while they were inside their home ("INS," for INSide), and a third badge only when they were outside their home ("OUT," for OUTside). At the end of the sampling period, women returned the badges and provided blood and exhaled breath condensate (EBC) samples. From the badges, 30 individual VOCs were measured and summed to inform total VOC (TVOC) concentrations, as well as concentrations of the following VOC groups: aromatic hydrocarbons, alkanes, halogenated hydrocarbons, and terpenes. From the blood and EBC samples, concentrations of serum C-reactive protein (CRP) and EBC 8-isoprostane (8-ISP) and pH were quantified. Data analyses included descriptive statistics. The 72-hr average of personal exposure to TVOC was 34.4 ppb and ranged from 9.2 to 219.5 ppb. The most prevalent class of VOC exposures for most women (66.7%) was terpenes, specifically d-limonene. Overall, most women also experienced higher TVOC concentrations while outside their home (86.7%) as compared to inside their home. Serum CRP concentrations ranged from 0.3 to 20.3 mg/dL; 8-ISP concentrations ranged from 9.5 to 44.1 pg/mL; and EBC pH ranged from 7.1 to 8.6. Overall, this pilot study demonstrated personal VOC exposure among Hispanic domestic cleaners, particularly to d-limonene, which may result from the use of scented cleaning products.
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Affiliation(s)
- Kelly Oyer-Peterson
- Southwest Center for Occupational and Environmental Health (SWCOEH), Department of Epidemiology, Human Genetics, and Environmental Sciences, The University of Texas Health Science Center at Houston (UTHealth) School of Public Health in San Antonio, San Antonio, TX, USA
| | - David Gimeno Ruiz de Porras
- Southwest Center for Occupational and Environmental Health (SWCOEH), Department of Epidemiology, Human Genetics, and Environmental Sciences, The University of Texas Health Science Center at Houston (UTHealth) School of Public Health in San Antonio, San Antonio, TX, USA
- CIBER Epidemiología y Salud Pública, Madrid, 28029, Spain
- Center for Research in Occupational Health (CISAL), Universitat Pompeu Fabra, Barcelona, 08003, Spain
| | - Inkyu Han
- Department of Epidemiology and Biostatistics, Temple University College of Public Health, Philadelphia, PA, USA
| | - George L. Delclos
- CIBER Epidemiología y Salud Pública, Madrid, 28029, Spain
- Center for Research in Occupational Health (CISAL), Universitat Pompeu Fabra, Barcelona, 08003, Spain
- Southwest Center for Occupational and Environmental Health (SWCOEH), Department of Epidemiology, Human Genetics, and Environmental Sciences, UTHealth School of Public Health, Houston, TX, USA
| | - Edward G. Brooks
- The University of Texas Health Science Center at San Antonio (UT Health San Antonio), Long School of Medicine, Department of Microbiology, Immunology & Molecular Genetics, San Antonio, TX, USA
| | - Masoud Afshar
- Southwest Center for Occupational and Environmental Health (SWCOEH), Department of Epidemiology, Human Genetics, and Environmental Sciences, UTHealth School of Public Health, Houston, TX, USA
| | - Kristina W. Whitworth
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
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Pasias IN, Ntakoulas DD, Raptopoulou K, Gardeli C, Proestos C. Chemical Composition of Essential Oils of Aromatic and Medicinal Herbs Cultivated in Greece-Benefits and Drawbacks. Foods 2021; 10:foods10102354. [PMID: 34681403 PMCID: PMC8535542 DOI: 10.3390/foods10102354] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/24/2021] [Accepted: 09/29/2021] [Indexed: 02/03/2023] Open
Abstract
The current study investigated and determined the major compounds of six essential oils derived from different plant species cultivated in Greece (Lavandula angustifolia, Origanum vulgare, Pistacia lentiscus var. chia, Citrus reticulata, Citrus limon and Crithmum maritimum). The results proved that all these essential oils have a high potential for use as food preservatives, since among the compounds determined were sabinene, b-myrcene, a-pinene, carvacrol and limonene, all of which were responsible for the strong antimicrobial activity against Staphylococcus aureus. However, the amounts of some compounds, such as linalool and citral, were at high levels, and this can be a danger for some sensitive population groups due to allergic reactions. The essential oil compounds which were identified using GC-MS and quantified through GC-FID represented more than 95% of the total essential oils of the investigated plant species. Finally, all essential oils provided high phenolic content.
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Affiliation(s)
- Ioannis N. Pasias
- General Chemical Lab of Research and Analysis, 35100 Lamia, Greece; (I.N.P.); (D.D.N.); (K.R.)
| | - Dimitris D. Ntakoulas
- General Chemical Lab of Research and Analysis, 35100 Lamia, Greece; (I.N.P.); (D.D.N.); (K.R.)
- Food Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, 15772 Athens, Greece
| | - Kalomoira Raptopoulou
- General Chemical Lab of Research and Analysis, 35100 Lamia, Greece; (I.N.P.); (D.D.N.); (K.R.)
| | - Chrysavgi Gardeli
- Food Chemistry and Analysis Laboratory, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece;
| | - Charalampos Proestos
- Food Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, 15772 Athens, Greece
- Correspondence: ; Tel.: +30-21-0727-4160
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Gopinath H, Manjula B, Karthikeyan K. Fragrance, Sunscreens, Botanicals, and Potential Allergens in Bestseller 'Fairness' Creams in the Indian Market: A Consumer Exposure Study. Indian J Dermatol 2021; 66:279-283. [PMID: 34446951 PMCID: PMC8375543 DOI: 10.4103/ijd.ijd_500_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background The skin lightening industry has seen exponential growth in India. Consumers often present to the dermatologist with adverse cutaneous reactions to these 'fairness' (skin lightening) creams. The composition of these creams has not received sufficient attention. Objective To identify fragrance, sunscreens, botanicals and potential allergens in the bestseller 'fairness' creams available in the Indian market. Methods Twenty fairness (or whitening or lightening) creams were selected based on the 'bestseller' creams of one of the largest electronic commerce websites in India, and availability in local stores and unlabelled brands were excluded. Fragrance, sunscreens, botanicals and potential allergens were identified from the ingredient labels. Results Twenty bestseller fairness creams were included. The number of the listed ingredients in the fairness creams ranged from 6 to 49 (mean = 32.2). The most frequently listed ingredients included water, fragrance or parfum, glycerin, tocopherol/tocopherylacetate and titanium dioxide. Hydroquinone, monobenzyl hydroquinone, corticosteroids, tretinoin and mercury were not listed in any of the creams. Unspecified fragrance was listed in 19 (95%) creams and linalool (8,40%) was the most frequent specified fragrance. Titanium dioxide (14, 70 %) was the most common inorganic sunscreen and ethylhexyl methoxycinnamate (12 creams or 60% of creams) was the most common organic sunscreen. Twenty-seven botanicals were identified. Eight ingredients were potential allergens according to the Indian Cosmetic and Fragrance Series. The cost of the creams ranged from 95 to 1,095 in Indian rupees (mean 300.5). Conclusions Consumers are exposed to a vast range of compounds in the quest for a lighter skin tone. Several potential allergens, particularly fragrance allergens, are present in addition to the eight allergens that were identified with the Indian Cosmetic and Fragrance Series. Increased awareness of the composition of skin lightening creams available in the market and strict regulation of these creams is needed.
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Affiliation(s)
- Hima Gopinath
- Department of Dermatology, Sri Manakula Vinayagar Medical College and Hospital, Pondicherry, India
| | - Bodicharla Manjula
- Department of Dermatology, Sri Manakula Vinayagar Medical College and Hospital, Pondicherry, India
| | - Kaliaperumal Karthikeyan
- Department of Dermatology, All India Institute of Medical Sciences, Mangalagiri, Guntur District, Andhra Pradesh, India
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Yeoman AM, Shaw M, Lewis AC. Estimating person-to-person variability in VOC emissions from personal care products used during showering. INDOOR AIR 2021; 31:1281-1291. [PMID: 33615569 DOI: 10.1111/ina.12811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
An increasing fraction of volatile organic compounds (VOC) emissions come from the domestic use of solvents, contained within myriad commonplace consumer products. Emission rates are often poorly characterized and depend significantly on individual behavior and specific product formulation and usage. Time-concentration profiles of volatile organic compounds (VOCs) arising from the use of a representative selection of personal care products (PCPs) during showering are generated, and person-to-person variability in emissions calculated. A panel of 18 participants used a standardized set of products, dosages, and application times during showering in a controlled indoor bathroom setting. Proton transfer mass spectrometry was used to measure the in-room VOC evolution of limonene (representing the sum of monoterpenes), benzyl alcohol, and ethanol. The release of VOCs had reproducible patterns between users, but noticeable variations in absolute peak concentrations, despite identical amounts of material being used. The amounts of VOC emitted to air for one showering activity were as follows: limonene (1.77 mg ± 42%), benzyl alcohol (1.07 mg ± 41%), and ethanol (0.33 mg ± 78%). Real-world emissions to air were between 1.3 and 11 times lower than bottom-up estimates based on dynamic headspace measurements of product emissions rates, likely a result of PCPs being washed away before VOC evaporation could occur.
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Affiliation(s)
- Amber M Yeoman
- Wolfson Atmospheric Chemistry Laboratories, University of York, York, UK
| | - Marvin Shaw
- National Centre for Atmospheric Science, University of York, York, UK
| | - Alastair C Lewis
- National Centre for Atmospheric Science, University of York, York, UK
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Lee EB, Lobl M, Ford A, DeLeo V, Adler BL, Wysong A. What Is New in Occupational Allergic Contact Dermatitis in the Year of the COVID Pandemic? Curr Allergy Asthma Rep 2021; 21:26. [PMID: 33779825 PMCID: PMC8006117 DOI: 10.1007/s11882-021-01000-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2021] [Indexed: 12/17/2022]
Abstract
Purpose of Review This article aims to summarize some recent trends in occupational allergic contact dermatitis (ACD), including dermatitis related to pandemic-level personal protective equipment in healthcare workers, hazards patients may experience when working from home, and occupational perspectives on the recent American Contact Dermatitis Society (ACDS) allergens of the year and ACDS Core Allergen Series updates. Recent Findings Recent ACDS Allergens of the Year may be particularly relevant to healthcare workers, including isobornyl acrylate, which is present in glucose sensors and propylene glycol present in hand cleansers and disinfectants. Lavender, limonene, and linalool, all of which are new additions to the ACDS Core Allergen Series, have been reported as causes for occupational ACD in massage therapists and aromatherapists. Isothiazolinone allergy continues to rise in both consumer and occupational settings. Finally, the COVID-19 pandemic has resulted in a wave of occupational ACD in healthcare workers to personal protective equipment, and revealed new potential allergens for individuals working from home. Summary Occupational allergic contact dermatitis continues to exert a significant occupational disease burden. Remaining aware of the current trends in allergens may allow for earlier recognition, diagnosis, and treatment, subsequently helping our patients to work in healthier and safer environments.
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Affiliation(s)
- Erica B Lee
- Department of Dermatology, University of Nebraska Medical Center, 985645 Nebraska Medical Center, Omaha, NE, 68198-5645, USA
| | - Marissa Lobl
- Department of Dermatology, University of Nebraska Medical Center, 985645 Nebraska Medical Center, Omaha, NE, 68198-5645, USA
| | - Aubree Ford
- Department of Dermatology, University of Nebraska Medical Center, 985645 Nebraska Medical Center, Omaha, NE, 68198-5645, USA
| | - Vincent DeLeo
- Department of Dermatology, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Brandon L Adler
- Department of Dermatology, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Ashley Wysong
- Department of Dermatology, University of Nebraska Medical Center, 985645 Nebraska Medical Center, Omaha, NE, 68198-5645, USA.
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Aalto-Korte K, Pesonen M. Printers' occupational contact dermatitis: 12-year data from the Finnish Register of Occupational Diseases. Contact Dermatitis 2021; 85:233-234. [PMID: 33598983 DOI: 10.1111/cod.13814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Kristiina Aalto-Korte
- Occupational Health Unit, Finnish Institute of Occupational Health (FIOH), Helsinki, Finland
| | - Maria Pesonen
- Occupational Health Unit, Finnish Institute of Occupational Health (FIOH), Helsinki, Finland
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Nature Exposure and Its Effects on Immune System Functioning: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18041416. [PMID: 33546397 PMCID: PMC7913501 DOI: 10.3390/ijerph18041416] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/26/2021] [Accepted: 01/29/2021] [Indexed: 01/18/2023]
Abstract
Given the drastic changes in our lifestyles and ecosystems worldwide, the potential health effects of natural environments have grown into a highly pervasive topic. Recent scientific findings suggest beneficial effects from nature exposure on human immune responses. This review aims at providing a comprehensive overview of literature published on immunomodulatory effects of nature exposure by inhalation of natural substances. A systematic database search was performed in SCOPUS and PubMed. The quality and potential bias of included studies (n = 33) were assessed by applying the EPHPP (Effective Public Health Practice Project) tool for human studies and the ARRIVE (Animal Research: Reporting of In Vivo Experiments) and SYRCLE (Systematic Review Centre for Laboratory Animal Experimentation) tools for animal studies. The synthesis of reviewed studies points to positive effects of nature exposure on immunological health parameters; such as anti-inflammatory, anti-allergic, anti-asthmatic effects or increased NK (natural killer) cell activity. Decreased expression of pro-inflammatory molecules, infiltration of leukocytes and release of cytotoxic mediators are outcomes that may serve as a baseline for further studies. However, partially weak study designs evoked uncertainties about outcome reproducibility and key questions remain open concerning effect sizes, duration of exposure and contributions of specific vegetation or ecosystem types.
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Chen J, Møller KH, Wennberg PO, Kjaergaard HG. Unimolecular Reactions Following Indoor and Outdoor Limonene Ozonolysis. J Phys Chem A 2021; 125:669-680. [DOI: 10.1021/acs.jpca.0c09882] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jing Chen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
| | - Kristian H. Møller
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
| | - Paul O. Wennberg
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, United States
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Henrik G. Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
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Frosch PJ, Mahler V, Weisshaar E, Uter W. Occupational Contact Dermatitis: General Aspects. Contact Dermatitis 2021. [DOI: 10.1007/978-3-030-36335-2_42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Sukakul T, Dahlin J, Pontén A, Antelmi A, Bruze M, Hamnerius N, Hauksson I, Isaksson M, Lejding T, Svedman C. Contact allergy to polyhexamethylene biguanide (polyaminopropyl biguanide). Contact Dermatitis 2020; 84:326-331. [PMID: 33098110 PMCID: PMC8048451 DOI: 10.1111/cod.13728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/15/2020] [Accepted: 10/19/2020] [Indexed: 12/20/2022]
Abstract
Background Polyaminopropyl biguanide (INCI name) and polyhexamethylene biguanide (PHMB) are polymeric biguanides. PHMB is a broad‐spectrum antimicrobial substance used as a preservative in many products. Due to our limited knowledge on PHMB contact allergy frequency and the fact that cases of allergic contact dermatitis to PHMB might be missed, we have included PHMB as a screening allergen since 2016. Objective To report the prevalence of positive patch test reactions to PHMB as a screening allergen in patients with suspected allergic contact dermatitis. Methods A retrospective analysis of 1760 patch tested patients from July 2016 to December 2018 was performed. Polyaminopropyl biguanide 2.0% aqua was included in the extended Malmö baseline series during the study period. Results Of all patients, 1204 (68.4%) were female. Positive patch test reactions were reported in 19 patients (1.1%). The most common sites of lesions were face, head, and neck (52.6%). There was a significant correlation between concomitant reactions to PHMB and other cosmetic‐related allergens. Conclusion The prevalence of positive reactions to PHMB was higher than that previously reported. Patch testing with PHMB should be performed in patients with dermatitis who have lesions on the face, head, and neck.
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Affiliation(s)
- Thanisorn Sukakul
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden.,Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jakob Dahlin
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Ann Pontén
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Annarita Antelmi
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Magnus Bruze
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Nils Hamnerius
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Inese Hauksson
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Marléne Isaksson
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Tina Lejding
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
| | - Cecilia Svedman
- Lund University, Department of Occupational and Environmental Dermatology, Skåne University Hospital, Malmö, Sweden
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Therapeutic Potential of Volatile Terpenes and Terpenoids from Forests for Inflammatory Diseases. Int J Mol Sci 2020; 21:ijms21062187. [PMID: 32235725 PMCID: PMC7139849 DOI: 10.3390/ijms21062187] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 02/07/2023] Open
Abstract
Forest trees are a major source of biogenic volatile organic compounds (BVOCs). Terpenes and terpenoids are known as the main BVOCs of forest aerosols. These compounds have been shown to display a broad range of biological activities in various human disease models, thus implying that forest aerosols containing these compounds may be related to beneficial effects of forest bathing. In this review, we surveyed studies analyzing BVOCs and selected the most abundant 23 terpenes and terpenoids emitted in forested areas of the Northern Hemisphere, which were reported to display anti-inflammatory activities. We categorized anti-inflammatory processes related to the functions of these compounds into six groups and summarized their molecular mechanisms of action. Finally, among the major 23 compounds, we examined the therapeutic potentials of 12 compounds known to be effective against respiratory inflammation, atopic dermatitis, arthritis, and neuroinflammation among various inflammatory diseases. In conclusion, the updated studies support the beneficial effects of forest aerosols and propose their potential use as chemopreventive and therapeutic agents for treating various inflammatory diseases.
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Joo SJ, Gautam R, Lee J, Kim H, Yang S, Jo J, Acharya M, Maharjan A, Kim Y, Lim YM, Kim C, Kim H, Heo Y. Prediction of the skin sensitization potential of polyhexamethylene guanidine phosphate, oligo(2-(2-ethoxy)ethoxyethyl) guanidinium chloride, triclosan, and mixtures of these compounds with the excipient propylene glycol through the local lymph node assay: BrdU-FCM. Toxicol Ind Health 2019; 35:638-646. [DOI: 10.1177/0748233719884853] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The guanidine family of antimicrobial agents, which includes polyhexamethylene guanidine phosphate (PHMG) and oligo(2-(2-ethoxy)ethoxyethyl) guanidinium chloride (PGH), and chlorophenol biocidal chemicals such as 2,4,4′-trichloro-2′-hydroxydiphenyl ether (triclosan) are used in various occupational and environmental biocidal applications. The excipient propylene glycol (PG) is used to dissolve the active ingredients. The skin sensitization (SS) potential of these substances has not been systemically investigated and is still debated. Moreover, mixtures of PHMG, PGH, or triclosan with PG have not been evaluated for SS potency. An in vivo assay known as the local lymph node assay: 5-bromo-2-deoxyuridine-flow cytometry method (LLNA: BrdU-FCM) was recently adopted as an alternative testing method and was used to address these issues. Via the LLNA: BrdU-FCM, PHMG, PGH, and triclosan were predicted to be sensitizers, while PG was predicted to be a nonsensitizer. In addition, d-limonene, which is used as a flavoring in various consumer products, was also predicted to be a sensitizer, although no unanimous conclusion has been reached regarding its SS potential. Mixtures of PHMG, PGH, triclosan, or d-limonene with PG at ratios of 9:1, 4:1, and 1:4 (w/w) were all positive in terms of SS potential, indicating that the PG excipient does not influence the SS predictions of these chemicals. Since humans can be occupationally and environmentally exposed to mixtures of excipients with active ingredients, the present study may give insight into further investigations of the SS potentials of various chemical mixtures.
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Affiliation(s)
- Su-Jeong Joo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JaeHee Lee
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - HyeonJi Kim
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - SuJeong Yang
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JiHun Jo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
- DragonImmuno Inc., Gyeongsan-si, Gyeongbuk, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - YeonGyeong Kim
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Yeon-Mi Lim
- Risk Assessment Division, Environmental Health Research Department, Institute of Environmental Research, Incheon, Republic of Korea
| | - ChangYul Kim
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
- DragonImmuno Inc., Gyeongsan-si, Gyeongbuk, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
- DragonImmuno Inc., Gyeongsan-si, Gyeongbuk, Republic of Korea
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18
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Lampel HP, Powell HB. Occupational and Hand Dermatitis: a Practical Approach. Clin Rev Allergy Immunol 2018; 56:60-71. [DOI: 10.1007/s12016-018-8706-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Human Skin Permeation Studies with PPARγ Agonist to Improve Its Permeability and Efficacy in Inflammatory Processes. Int J Mol Sci 2017; 18:ijms18122548. [PMID: 29182532 PMCID: PMC5751151 DOI: 10.3390/ijms18122548] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/17/2017] [Accepted: 11/21/2017] [Indexed: 01/09/2023] Open
Abstract
Rosacea is the most common inflammatory skin disease. It is characterized by erythema, inflammatory papules and pustules, visible blood vessels, and telangiectasia. The current treatment has limitations and unsatisfactory results. Pioglitazone (PGZ) is an agonist of peroxisome proliferator-activated receptors (PPARs), a nuclear receptor that regulates important cellular functions, including inflammatory responses. The purpose of this study was to evaluate the permeation of PGZ with a selection of penetration enhancers and to analyze its effectiveness for treating rosacea. The high-performance liquid chromatography (HPLC) method was validated for the quantitative determination of PGZ. Ex vivo permeation experiments were realized in Franz diffusion cells using human skin, in which PGZ with different penetration enhancers were assayed. The results showed that the limonene was the most effective penetration enhancer that promotes the permeation of PGZ through the skin. The cytotoxicity studies and the Draize test detected cell viability and the absence of skin irritation, respectively. The determination of the skin color using a skin colorimetric probe and the results of histopathological studies confirmed the ability of PGZ-limonene to reduce erythema and vasodilation. This study suggests new pharmacological indications of PGZ and its possible application in the treatment of skin diseases, namely rosacea.
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Wlodek C, Penfold CM, Bourke JF, Chowdhury MMU, Cooper SM, Ghaffar S, Green C, Holden CR, Johnston GA, Mughal AA, Reckling C, Sabroe RA, Stone NM, Thompson D, Wilkinson SM, Buckley DA. Recommendation to test limonene hydroperoxides 0·3% and linalool hydroperoxides 1·0% in the British baseline patch test series. Br J Dermatol 2017; 177:1708-1715. [PMID: 28494107 DOI: 10.1111/bjd.15648] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is a significant rate of sensitization worldwide to the oxidized fragrance terpenes limonene and linalool. Patch testing to oxidized terpenes is not routinely carried out; the ideal patch test concentration is unknown. OBJECTIVES To determine the best test concentrations for limonene and linalool hydroperoxides, added to the British baseline patch test series, to optimize detection of true allergy and to minimize irritant reactions. METHODS During 2013-2014, 4563 consecutive patients in 12 U.K. centres were tested to hydroperoxides of limonene in petrolatum (pet.) 0·3%, 0·2% and 0·1%, and hydroperoxides of linalool 1·0%, 0·5% and 0·25% pet. Irritant reactions were recorded separately from doubtful reactions. Concomitant reactions to other fragrance markers and clinical relevance were documented. RESULTS Limonene hydroperoxide 0·3% gave positive reactions in 241 (5·3%) patients, irritant reactions in 93 (2·0%) and doubtful reactions in 110 (2·4%). Linalool hydroperoxide 1·0% gave positive reactions in 352 (7·7%), irritant reactions in 178 (3·9%) and doubtful reactions in 132 (2·9%). A total of 119 patients with crescendo reactions to 0·3% limonene would have been missed if only tested with 0·1% and 131 patients with crescendo reactions to 1·0% linalool would have been missed if only tested with 0·25%. In almost two-thirds of patients with positive patch tests to limonene and linalool the reaction was clinically relevant. The majority of patients did not react to any fragrance marker in the baseline series. CONCLUSIONS We recommend that limonene hydroperoxides be tested at 0·3% and linalool hydroperoxides at 1·0% in the British baseline patch test series.
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Affiliation(s)
- C Wlodek
- Royal United Hospital, Bath, U.K.,Bristol Royal Infirmary, Bristol, U.K
| | - C M Penfold
- National Institute for Health Research, Biomedical Research Unit in Nutrition, Diet and Lifestyle, University Hospital Bristol Education Centre, Bristol, U.K
| | - J F Bourke
- South Infirmary Victoria University Hospital, Cork, Ireland
| | | | - S M Cooper
- Oxford University Hospitals, Oxford, U.K
| | | | - C Green
- Ninewells Hospital, Dundee, U.K
| | - C R Holden
- Sheffield Teaching Hospitals NHS Trust, Sheffield, U.K
| | | | | | | | - R A Sabroe
- Sheffield Teaching Hospitals NHS Trust, Sheffield, U.K
| | | | - D Thompson
- Sandwell & West Birmingham Hospitals, Birmingham, U.K
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Montgomery RL, Agius R, Wilkinson SM, Carder M. UK trends of allergic occupational skin disease attributed to fragrances 1996-2015. Contact Dermatitis 2017; 78:33-40. [DOI: 10.1111/cod.12902] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/21/2017] [Accepted: 09/03/2017] [Indexed: 12/01/2022]
Affiliation(s)
- Rachel L. Montgomery
- Leeds Teaching Hospitals NHS Trust - Centre for Dermatology; Chapel Allerton Hospital; Leeds LS7 4SA UK
| | - Raymond Agius
- Centre for Occupational and Environmental Health; University of Manchester; Manchester M13 9PL UK
| | - Stephen M. Wilkinson
- Leeds Teaching Hospitals NHS Trust - Centre for Dermatology; Chapel Allerton Hospital; Leeds LS7 4SA UK
| | - Melanie Carder
- Centre for Occupational and Environmental Health; University of Manchester; Manchester M13 9PL UK
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Roberts DW, Patlewicz G. Non-animal assessment of skin sensitization hazard: Is an integrated testing strategy needed, and if so what should be integrated? J Appl Toxicol 2017; 38:41-50. [PMID: 28543848 DOI: 10.1002/jat.3479] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/22/2017] [Accepted: 03/25/2017] [Indexed: 12/31/2022]
Abstract
There is an expectation that to meet regulatory requirements, and avoid or minimize animal testing, integrated approaches to testing and assessment will be needed that rely on assays representing key events (KEs) in the skin sensitization adverse outcome pathway. Three non-animal assays have been formally validated and regulatory adopted: the direct peptide reactivity assay (DPRA), the KeratinoSens™ assay and the human cell line activation test (h-CLAT). There have been many efforts to develop integrated approaches to testing and assessment with the "two out of three" approach attracting much attention. Here a set of 271 chemicals with mouse, human and non-animal sensitization test data was evaluated to compare the predictive performances of the three individual non-animal assays, their binary combinations and the "two out of three" approach in predicting skin sensitization potential. The most predictive approach was to use both the DPRA and h-CLAT as follows: (1) perform DPRA - if positive, classify as sensitizing, and (2) if negative, perform h-CLAT - a positive outcome denotes a sensitizer, a negative, a non-sensitizer. With this approach, 85% (local lymph node assay) and 93% (human) of non-sensitizer predictions were correct, whereas the "two out of three" approach had 69% (local lymph node assay) and 79% (human) of non-sensitizer predictions correct. The findings are consistent with the argument, supported by published quantitative mechanistic models that only the first KE needs to be modeled. All three assays model this KE to an extent. The value of using more than one assay depends on how the different assays compensate for each other's technical limitations. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- David W Roberts
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool, UK
| | - Grace Patlewicz
- National Center for Computational Toxicology (NCCT), US Environmental Protection Agency (US EPA), Research Triangle Park (RTP), NC, 27711, USA
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24
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Deza G, García-Bravo B, Silvestre JF, Pastor-Nieto MA, González-Pérez R, Heras-Mendaza F, Mercader P, Fernández-Redondo V, Niklasson B, Giménez-Arnau AM. Contact sensitization to limonene and linalool hydroperoxides in Spain: a GEIDAC * prospective study. Contact Dermatitis 2017; 76:74-80. [PMID: 27896835 DOI: 10.1111/cod.12714] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 09/11/2016] [Accepted: 09/21/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Limonene and linalool are common fragrance terpenes widely used in cosmetic, household and hygiene products. Their primary oxidation products formed after air exposure, the hydroperoxides, have been recognized as important contact haptens. OBJECTIVES To investigate the prevalence of contact allergy to hydroperoxides of limonene (Lim-OOHs) and hydroperoxides of linalool (Lin-OOHs) in Spain, and to define the optimal concentration for screening in consecutive patients. METHODS Three different concentrations of Lim-OOHs (0.1%, 0.2% and 0.3% pet.) and Lin-OOHs (0.25%, 0.5% and 1.0% pet.) were simultaneously tested in 3639 consecutive patients at 22 departments of dermatology in Spain. RESULTS Lim-OOHs at 0.1%, 0.2% and 0.3% yielded positive patch test reactions in 1.4%, 3.4% and 5.1% of the tested patients, respectively; and Lin-OOHs at 0.25%, 0.5% and 1.0% yielded positive reactions in 1.3%, 2.9% and 4.9% of the tested patients, respectively. Few irritant (1.5-1.9%) and doubtful reactions (0.4-0.5%) to both terpene hydroperoxides were registered at the highest concentrations tested. CONCLUSIONS Lim-OOHs and Lin-OOHs can be considered as common causes of contact allergy, and their inclusion in an extended baseline patch test series therefore seems to be appropriate. The patch test preparations of Lim-OOHs 0.3% pet. and Lin-OOHs 1.0% pet. are useful tools for screening of contact sensitization.
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Affiliation(s)
- Gustavo Deza
- Department of Dermatology, Hospital del Mar, Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), 08003 Barcelona, Spain
| | - Begoña García-Bravo
- Department of Dermatology, University Hospital Virgen Macarena, 41009 Sevilla, Spain
| | - Juan F Silvestre
- Department of Dermatology, University Hospital of Alicante, Instituto de Investigación Sanitaria y Biomédica de Alicante- Fundación FISABIO, 03010 Alicante, Spain
| | - Maria A Pastor-Nieto
- Department of Dermatology, University Hospital of Guadalajara, 19002 Guadalajara, Spain
| | | | | | - Pedro Mercader
- Department of Dermatology, University Hospital Morales Meseguer, 30008 Murcia, Spain
| | - Virginia Fernández-Redondo
- Department of Dermatology, University Hospital Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Bo Niklasson
- Chemotechnique Diagnostics, 235 39 Vellinge, Sweden
| | - Ana M Giménez-Arnau
- Department of Dermatology, Hospital del Mar, Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), 08003 Barcelona, Spain
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26
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Fragrance Allergens, Overview with a Focus on Recent Developments and Understanding of Abiotic and Biotic Activation. COSMETICS 2016. [DOI: 10.3390/cosmetics3020019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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de Groot AC, Schmidt E. Tea tree oil: contact allergy and chemical composition. Contact Dermatitis 2016; 75:129-43. [DOI: 10.1111/cod.12591] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/09/2016] [Accepted: 03/10/2016] [Indexed: 01/16/2023]
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28
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Bråred Christensson J, Karlberg AT, Andersen KE, Bruze M, Johansen JD, Garcia-Bravo B, Giménez Arnau A, Goh CL, Nixon R, White IR. Oxidized limonene and oxidized linalool - concomitant contact allergy to common fragrance terpenes. Contact Dermatitis 2016; 74:273-80. [PMID: 26918793 DOI: 10.1111/cod.12545] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Revised: 12/30/2015] [Accepted: 12/30/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND Limonene and linalool are common fragrance terpenes. Both oxidized R-limonene and oxidized linalool have recently been patch tested in an international setting, showing contact allergy in 5.2% and 6.9% of dermatitis patients, respectively. OBJECTIVE To investigate concomitant reactions between oxidized R-limonene and oxidized linalool in consecutive dermatitis patients. METHODS Oxidized R-limonene 3.0% (containing limonene hydroperoxides 0.33%) and oxidized linalool 6% (linalool hydroperoxides 1%) in petrolatum were tested in 2900 consecutive dermatitis patients in Australia, Denmark, Singapore, Spain, Sweden, and the United Kingdom. RESULTS A total of 281 patients reacted to either oxidized R-limonene or oxidized linalool. Of these, 25% had concomitant reactions to both compounds, whereas 29% reacted only to oxidized R-limonene and 46% only to oxidized linalool. Of the 152 patients reacting to oxidized R-limonene, 46% reacted to oxidized linalool, whereas 35% of the 200 patients reacting to oxidized linalool also reacted to oxidized R-limonene. CONCLUSIONS The majority of the patients (75%) reacted to only one of the oxidation mixtures, thus supporting the specificity of the reactions. The concomitant reactions to the two fragrance allergens suggest multiple sensitizations, which most likely reflect the exposure to the different fragrance materials in various types of consumer products. This is in accordance with what is generally seen for patch test reactions to fragrance materials.
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Affiliation(s)
- Johanna Bråred Christensson
- Department of Dermatology, Sahlgrenska Academy at University of Gothenburg, 413 45, Gothenburg, Sweden.,Dermatochemistry, Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Ann-Therese Karlberg
- Dermatochemistry, Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Klaus E Andersen
- Department of Dermatology and Allergy Centre, Odense University Hospital, University of Southern Denmark, 5000, Odense, Denmark
| | - Magnus Bruze
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden
| | - Jeanne D Johansen
- The National Allergy Research Centre, Department of Dermato-allergology, Gentofte Hospital, University of Copenhagen, 2900, Hellerup, Denmark
| | - Begoña Garcia-Bravo
- Department of Dermatology, University Hospital Virgen Macarena, 41007, Seville, Spain
| | - Ana Giménez Arnau
- Department of Dermatology, Hospital del Mar, Institut Mar d'Investigacions Médiques, Universitat Autònoma, 08003, Barcelona, Spain
| | | | - Rosemary Nixon
- Occupational Dermatology Research and Education Centre, Skin and Cancer Foundation, 3053, Victoria, Australia
| | - Ian R White
- Department of Cutaneous Allergy, St John's Institute of Dermatology, St Thomas' Hospital, SE1 7EH, London, UK
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Wiszniewska M, Walusiak-Skorupa J. Recent Trends in Occupational Contact Dermatitis. Curr Allergy Asthma Rep 2015; 15:43. [PMID: 26143395 DOI: 10.1007/s11882-015-0543-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Occupational contact dermatitis (OCD) remains prevalent among workers and impacts quality of life and workability. The purpose of this review is to summarize the recent advances in occupational contact dermatitis as well as potential hazardous agents in the workplaces causing OCD. The review covers new developments in the epidemiology, etiology, diagnosis, and management of occupational contact dermatitis. This article also provides updated information on the prevalence of work-related skin symptoms and on new contact allergens among working population. It is emphasized that in the context of prevention of OCD, special attention should be focused on the identified high-risk occupational groups, especially healthcare workers and hairdressers starting with the apprentices. Current approaches include working out the standards and guidelines to improve the education, knowledge, diagnosis, and management of OCD based on a multidisciplinary team of medical specialists and an employer.
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Affiliation(s)
- Marta Wiszniewska
- Department of Occupational Diseases and Clinical Toxicology, Nofer Institute of Occupational Medicine, 8 Teresy St., 91-348, Lodz, Poland,
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Qin R, Lampel HP. Review of Occupational Contact Dermatitis—Top Allergens, Best Avoidance Measures. CURRENT TREATMENT OPTIONS IN ALLERGY 2015. [DOI: 10.1007/s40521-015-0063-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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de Groot AC, Schmidt E. Eucalyptus oil and tea tree oil. Contact Dermatitis 2015; 73:381-6. [PMID: 26173541 DOI: 10.1111/cod.12450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 06/06/2015] [Indexed: 11/29/2022]
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