OBJECTIVES To determine the prevalence, clinical features, and patterns of hand dermatosis in hairdressers in Tainan, Taiwan, and to examine the associations between patterns of dermatosis and risk factors such as job description, work exposure, and sensitisation to common allergens. METHODS Interviews, examinations, and patch tests of the hairdressers from nine hairdressing stores randomly s...

Contact dermatitis is frequent skin pathology and eyelids are one of the more frequent locations of this pathology. The objective of the present work was to study the population distribution of periocular dermatitis, determine the allergens which most frequently indicate positive in patch tests and in provocative use tests, and analyse the clinical relevance of the positive tests.Patients with ...

BACKGROUND Contact allergy epidemics to chromate and nickel were addressed in Denmark in 1983 and 1990 by regulatory interventions. OBJECTIVES To evaluate whether regulatory interventions on nickel and chromate exposure have reduced the proportion of strong patch test reactions. METHODS 22 506 patients with dermatitis aged 4-99 years were patch tested with nickel sulfate, potassium dichroma...

The preservative methyldibromo glutaronitrilc (MDBGN) is used non-occupationally and occupationally. High contact allergy rates have been reported when tested in consecutive dermatitis patients as well as clinical cases with allergic contact dermatitis. Up till now there has been no agreement on which patch test preparation to use to trace contact allergy to MDBGN. From the year 2005 on, MDBGN ...

The luminance of a test within an inhomogeneous ("checkerboard") surround was adjusted to match the brightness of a comparison patch within a uniform surround. All stimuli were achromatic. Both surrounds had the same space-averaged luminance. With an incremental comparison patch, a test-within-checkerboard at a luminance between the luminances of the brighter and dimmer checks appears dimmer th...

BACKGROUND The patch test is considered to be the gold standard for diagnosing nickel (Ni) allergy. The lymphocyte transformation test (LTT) can also be used to detect Ni sensitization. However, little is known about the correlation between patch test and LTT reactions to Ni. OBJECTIVE To establish and validate an LTT for Ni sensitization by comparison with patch test reaction and history. ...

BACKGROUND Fragrance mix I (FM I) and its single constituents contain 5% and 1% sorbitan sesquioleate (SSO), respectively. SSO is a rare sensitizer and a potential irritant. OBJECTIVES To determine whether the outcome of the FM I breakdown test is affected by positive patch test reactivity to SSO. METHODS A retrospective analysis of data from the Information Network of Departments of Dermat...

In this paper, we propose a new compact quasi-fractal shaped microstrip antenna that consists of a hexagonal patch as the main radiator and a complementary stacked patch as the parasitic element. The overall surface of the proposed quasi-fractal patch is about 55% lower than the conventional hexagonal patch. Using of stacked technique, the gain reduction of compression technique is almost compe...

Major local adverse reactions in the nicotine patches are skin reactions. To assess the skin reaction of PHK-301p, a newly developed nicotine patch, we conducted a phase I study that consisted of 2 parts: a skin irritation test (48-h closed patch test) and a photosensitivity test (24-h closed patch test + Ultraviolet A irradiation). Twenty healthy men were treated with PHK-301p and placebo. Bot...