Open research questions in Contact Dermatitis and Allergies
168 gap statements mined from Contact Dermatitis and Allergies papers in our 4.5M-paper local library, which holds 1,629 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.
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What the literature leaves open
The difficulty in estimating the prevalence of clothing-related ACD due to the lack of accurate data. The challenge of assessing the risk reduction potential of the proposed generic ban. The need to consider 'regrettable substitutions' of dyes and other potential unintended consequences of the proposed ban.
Diagnosing metal hypersensitivity is challenging due to nonspecific inflammatory reactions. There is a lack of standardization in testing for metal hypersensitivity. The paper highlights the need for individualized therapeutic decision-making due to limited and heterogeneous treatment evidence.
Metal Hypersensitivity in Total Joint Arthroplasty: Molecular Immunopathogenesis, Diagnostic Controversies, and Prospects for Precision Medicine · 2026 · DOIThere is a need to characterize the demographic and clinical characteristics of affected patients and assess associations between CHE and selected atopic and psychiatric comorbidities.
The lack of consideration of acrylate allergy in patients undergoing glue embolisation. The need for a brief allergy-focused history in pre-procedural assessment for elective glue embolisation.
Ask Before You Glue: Acrylate Sensitisation is an Under-Recognised Risk as Glue Embolisation Expands · 2026 · DOIOur in vitro study is limited by only focusing on CXCL9/10-CXCR3 axis involvement in IFNγ production without studying its role in driving T cell migration. Our study is limited by the use of only one skin inflammation model.
Defining cell type-specific immune responses in a mouse model of allergic contact dermatitis by single-cell transcriptomics · 2024 · DOIFuture studies investigating cellular interactions between basophils and dFBs will advance our understanding of the basophil chemotaxis mechanism and the role of basophils in skin allergic inflammation. Future studies are still needed to determine whether this fibroblast-T cell axis may be broadly applied to other ACD models or to other type-1 immune response-related inflammatory skin diseases.
Defining cell type-specific immune responses in a mouse model of allergic contact dermatitis by single-cell transcriptomics · 2024 · DOIGold release occurred in some earrings, but the clinical relevance remains uncertain.
Gold and Nickel Release From Gold‐Plated Earrings Under Cysteine‐Modified Artificial Sweat Conditions · 2026 · DOIFormaldehyde, a degradation byproduct of cyanoacrylates and a potent sensitiser, is believed to be associated with this reaction, but emission levels have not been quantified.
Formaldehyde Emissions From 2‐Octyl Cyanoacrylate: Quantified Risk for Allergic Contact Dermatitis · 2026 · DOIHowever, the potential for cross-reactivity between hydroxyacetophenone and resacetophenone remains unknown.
The lower prevalence of metal sensitization in patients with atopic dermatitis may reflect distinct immunological mechanisms that warrant further research.
Contact Sensitization in Adults With Atopic Dermatitis: A 21‐Year Single‐Center Tertiary Experience · 2026 · DOIWhether certain botanicals should be considered 'fragrance' and whether fragrance-allergic patients should avoid these ingredients remains unclear, with minimal published data on the topic.
Finally, the short duration of work absence was insufficient for complete healing of the lesions.
The association between atopic dermatitis (AD) and contact sensitisation remains unclear, and data from Asian populations are limited.
Prevalence of Contact Sensitisation Among Patients With Atopic Dermatitis in Thailand: A 20‐Year Retrospective Study · 2026 · DOIReproducibility of patch test reactions remains debated, and the clinical significance of doubtful (?+) reactions is unclear.
Reproducibility of Patch Test Reactions and Interpretation of Doubtful Results: A Retrospective Study of Identical Haptens Tested Simultaneously in Different Series · 2026 · DOIGold sensitization is common, but its clinical and immunologic significance remains unclear.
Gold Contact Sensitization, Clinical Characteristics and Associations With Autoimmune Disease: A Retrospective Cohort Study With Registry Linkage · 2026 · DOIHowever, the role of Bach2 in T cells during ACD development has not yet been determined.
Loss of Bach2 in T cells causes prolonged allergic inflammation through accumulation of effector T cells and disruption of epidermal barrier · 2025 · DOIThere is limited data regarding the epidemiology of these metals in Israel or in the Mediterranean region.
Epidemiology of Sensitivity to Nickel, Cobalt and Chromium in Israel: A Retrospective Cohort Study · 2025 · DOIFew studies have comprehensively assessed the multidimensional impact of ACD using validated QoL instruments and healthy controls.
Impact of Allergic Contact Dermatitis on Health‐Related Quality of Life: A Cross‐Sectional Case–Control Study in a Spanish Population · 2026 · DOITo date, no standardised concentration for patch testing hydroxyacetophenone has been established.
The extracellular matrix (ECM) is known to regulate innate immune cells but its role in T cell functions is poorly understood.
Paracrine regulations of IFN-γ secreting CD4+ T cells by lumican and biglycan are protective in allergic contact dermatitis · 2025 · DOIThe study applied a stratified random sampling strategy within a limited exploratory sample, - The country of origin was not considered during the selection of cosmetic products, - The study only included loose cosmetic products intended for face and eye…
Analysis of Ni, Cu, and Fe in Loose Cosmetic Products: A Preliminary Dermal Exposure and Health Risk Assessment · 2026 · DOIFurther studies on the occurrence of heavy metals in cosmetic products are necessary to ensure product safety, - Research on the release profiles of heavy metals from different types of cosmetic products is needed, - Studies on the toxicological effects of long-term exposure to heavy metals in cosmetic products should be…
Analysis of Ni, Cu, and Fe in Loose Cosmetic Products: A Preliminary Dermal Exposure and Health Risk Assessment · 2026 · DOIThe study only considered data from Germany, - The relapse rate of textile-related ACD is not known, - The study relied on patch test results, - The study did not consider other aspects of the proposed generic ban, - The study had a limited…
Further study on the psychological impact of CHE, - Investigation of targeted therapies for CHE patients with atopic dermatitis, - Examination of the effects of CHE on different racial and ethnic…
Its use as a laboratory reagent in milk adulteration testing, represents a potential but under-reported occupational hazard.
Uncommon Source of Chromium Sensitization: Allergic Contact Dermatitis From Potassium Dichromate in Milk Adulteration Testing · 2026 · DOI
Most-cited papers in Contact Dermatitis and Allergies
- Publication Recommendations for Electrodermal Measurements · Psychophysiology · 1981 · 766 citations
- Skin as a route of exposure and sensitization in chronic beryllium disease. · Environmental Health Perspectives · 2003 · 385 citations
- Titanium allergy in dental implant patients: a clinical study on 1500 consecutive patients · Clinical Oral Implants Research · 2008 · 356 citations
- Guidelines for diagnosis, prevention, and treatment of hand eczema · Contact Dermatitis · 2021 · 271 citations
- Nickel allergy in adolescents in relation to orthodontic treatment and piercing of ears · American Journal of Orthodontics and Dentofacial Orthopedics · 1996 · 155 citations
- Solid Food Introduction in Relation to Eczema: Results from a Four-Year Prospective Birth Cohort Study · The Journal of Pediatrics · 2007 · 139 citations
- North American Contact Dermatitis Group Patch Test Results: 2019–2020 · Dermatitis · 2023 · 126 citations
- The safety of nickel containing dental alloys · Dental Materials · 2006 · 109 citations
- Contact Dermatitis from Penetration of Rubber Gloves by Acrylic Monomer · BMJ · 1971 · 108 citations
- Allergic contact dermatitis caused by titanium screws and dental implants · Journal of Prosthodontic Research · 2016 · 102 citations
Most recent work
- European Society of Contact Dermatitis Guideline for Diagnostic Patch Testing—Recommendations on Best Practice (Update 2026) · Contact Dermatitis · 2026
- Isothiazolinones in Disposable Rubber Gloves—Results of Chemical Analysis · Contact Dermatitis · 2026
- A Retrospective Real-World Comparison of Topical Delgocitinib and Localized Cream Psoralen–Ultraviolet A in Chronic Hand Eczema · Dermatology and Therapy · 2026
- Glyoxylic acid in hair straighteners: a critical evaluation of transdermal absorption and hepatic metabolism in nephrotoxicity risk assessment · Kidney International · 2026
- Allergic Contact Dermatitis of the Hands: A Retrospective Cohort Study From Turkey Between 1996 and 2021 · Contact Dermatitis · 2026
- Could the Can Be the Culprit: A Case of Stannous (Tin ( II )) Contact Allergy From Tinned Foods · Contact Dermatitis · 2026
- Patch Testing in Individuals With Diabetes Using Medical Devices. Part 1—Contact Allergy to Baseline Series Allergens · Contact Dermatitis · 2026
- Impact of Allergic Contact Dermatitis on Health‐Related Quality of Life: A Cross‐Sectional Case–Control Study in a Spanish Population · Contact Dermatitis · 2026
- Patch Test Results With the European Baseline Series, 2021/2022—Joint European Results of the ESSCA A and the EBS B Working Groups of the ESCD , and the GEIDAC C · Contact Dermatitis · 2026
- Patch Testing in Individuals With Diabetes Using Medical Devices. Part 2—Contact Allergy to Medical Device Allergens and New Patch Test Recommendations · Contact Dermatitis · 2026
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