Short Repeated Nickel Exposures
Allergic Contact Dermatitis Due to NickelThe former Nickel Directive was introduced in EU in 1994 limiting the release of nickel from items intended for prolonged contact with skin. The nickel regulation entered into full force in 2001 and became a part of REACH (the EU chemicals regulation) in 2009. Since then the prevalence of nickel allergy has declined in some countries, but not in others, following the implementation. Young individuals still become allergic to nickel (2, 3) and a high prevalence of nickel allergy, exceeding 10%, is seen among young women (below 30 years) in the general population. The EU nickel regulation has been changing over time. The present limits of nickel release for metallic items intended for direct and prolonged contact with the skin is <0.5 μg/cm2/week and <0.2 μg/cm2/week for any post assemblies inserted into pierced holes. In 2014, EU defined prolonged contact with the skin as: at least 30 minutes on one or more occasions within two weeks for items with continuous skin contact, or to at least 10 minutes on three or more occasions within two weeks (7). The overall objective is to evaluate how well the EU nickel regulation protects individuals against developing nickel dermatitis. More specifically we will: Study the penetration of nickel in normal and irritated skin after short repeated skin exposure under controlled temperature in nickel sensitized patients and in healthy controls Reveal the potential of short repeated nickel skin exposure on normal and irritated skin to elicit dermatitis, during controlled climate factors in nickel sensitized patients and controls using the time restrictions of the definition of prolonged skin contact in the nickel regulation.
Killer Immunoglobulin-Like Receptor Transcripts Expression for the Diagnosis of Epidermotropic Cutaneous...
Mycosis FungicidesSezary Syndrome3 moreThe most frequent cutaneous T-cell lymphomas (CTCL) are mycosis fungoid and Sezary syndrome. The diagnosis of these lymphomas is difficult using current methods, especially because numerous benign dermatological conditions can mimick CTCL both clinically and under microscopic examination. Recently, the KIR receptor CD158k has been shown to be a marker for Sezary syndrome in both the blood and skin. We hypothesize that other receptors from the same family may help fro the diagnosis of these lymphomas. To address this issue, we will study the expression of all known KIR receptor in the skin of patients presenting with a skin eruption, which may correspond to either a cutaneous T-cell lymphoma or a benign dermatological disease. The final diagnosis will be established by a panel of experts, allowing constitution of 2 groups of patients : the cutaneous T-cell lymphoma group, and the benign inflammatory disease group. The expression of the different KIRs will be analyzed in both group in a blinded fashion, in order to determine whether one or a several KIRs may be differentially expressed.
Evaluation of Cetaphil Advanced Usage to Control Light to Moderate Atopic Dermatitis, in Attempt...
DermatitisAtopicThe main goal of this present study is evaluate the decreasing of necessity of topic corticoids usage to control outbreaks of light to moderate atopic dermatitis by using the correct emollients.
Multi-Centre European Photopatch Test Study
DermatitisPhotocontactIt is known that people can develop an allergic skin reaction to a substance which is placed on the skin and then subjected to sunlight. This process is called Photocontact allergic dermatitis. It is known that people can develop Photocontact allergic dermatitis to sunscreen chemicals (filters) and also cream forms of pain-killing drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). The purpose of this study is to determine the frequency of Photocontact allergic dermatitis to 19 sunscreen filters and 5 topical NSAIDs in 1,000 European patients who present to a dermatologist with a sun-exposed site dermatitis. Each participant will have the 24 test agents plus one control of petrolatum applied to the skin of the back for 24 or 48 hours. After removal of the substances, the area of skin will be exposed to a precise amount of ultraviolet-A light. The area is then assessed 24, 48 and 72 hours later to see if a photocontact allergic reaction has occured. This method is known as photopatch testing. The study will run for one year, during which time it is planned to recruit 1,000 patients.
Evaluation of Topical B12 for the Treatment of Childhood Atopic Dermatitis
EczemaThis study is being done to see in B12 applied to the skin will improve the symptoms of eczema in children compared to a placebo creme
Impact in Off-spring of Mothers After Perinatal Daily Intake of a Probiotic
AsthmaDermatitis4 moreA probiotic (Lactobacillus rhamnosus GG) supplement to pregnant women the last four weeks of pregnancy and three months after birth is expected to give a 40% reduction in risk of atopic sensitisation and allergic disease at two years of age, compared to placebo.
A Phase Ⅱ Study of Hemay808 for Atopic Dermatitis Patients
Atopic DermatitisAssess Hemay808 concentration of 1%/3%/7% for treatment of mild and moderate adult atopic dermatitis patients.
Establishing the Collaborative Care Model of Traditional Chinese Medicine and Western Medicine-Pediatric...
Atopic DermatitisIn Taiwan, there are many patients suffer from pediatric atopic dermatitis. Because of the clinical characteristic of repetitive and scratchy, which will affect the patients' quality of life and lead to the medical heavy budget. TCM may play an important role in this disease and help patient to improved their health. In this project, we aim to establish a Collaborative Care Model of TCM and Western Medicine, to achieve the multiple goal in clinical treatment, research and medical training. By establishing a collaborative care model, including the Chinese medicine doctor and Western medicine doctor, nurses, pharmacists and case managers, to cooperative satisfy the patient needed in the medical service, to improve the clinical presentation, patients'quality of life, and reduce exposure to corticosteroid. Besides, we can also build a training environment and reduce medical cost in long term purpose. Furthermore, by establishing a collaborative care model, we can provide a medical education and training opportunity to educate the medical student and clinician the necessary knowledge of pediatric atopic dermatitis by caring patients and learning from clinical case. According to the above training program, we not only aim to strengthen the competitiveness of Chinese medicine doctor in Taiwan, but also make the Western medicine doctors comprehend the TCM characteristic and may find out the even more opportunity to cooperate in clinical practice. To make this collaborative care model as a beginning milestone of cooperation between Chinese medicine and Western medicine.
Genetic Screening for Filaggrin Mutation in Atopic Dermatitis and Ichthyosis Vulgaris in the African...
Atopic DermatitisIchthyosis VulgarisThe investigators' primary objective is to identify common and rare mutations in the filaggrin gene in African American patients with a diagnosis of atopic dermatitis and ichthyosis vulgaris. Atopic dermatitis, or eczema, is a common, chronic, relapsing and remitting problem in many children and affects 10-20% of the pediatric population. Itch is a predominant feature of this disease and is quite disruptive to daily activities of life. In addition to itch, it is characterized by markedly dry skin, small red bumps that may have fluid. Ichthyosis vulgaris is characterized by extremely dry, scaly skin with a fine white scale and increased amounts of lines noted on the palms. Filaggrin is a protein that is essential for the skin to function properly as a barrier and found to be mutated in some European patients with ichthyosis vulgaris and atopic dermatitis. This association has not been looked at in the African American population. Genomic DNA (gDNA) will be purified from buccal swabs using commercially available kits and analyzed.
An Open-Label Study Investigating the Effects of Early Skin Barrier Protection on the Development...
Atopic DermatitisThe purpose of this study is to determine whether early use of a bland emollient in newborns, prior to the clinical signs of skin disease, will delay the onset or prevent the development of atopic dermatitis.