BACKGROUND Limonene is a common fragrance terpene that, in its pure form, is not allergenic or is a very weak allergen. However, limonene autoxidizes on air exposure, and the oxidation products can cause contact allergy. Oxidized R-limonene has previously been patch tested in multicentre studies, giving 2-3% positive patch test reactions in consecutive patients. OBJECTIVES To investigate whet...

Transferable picture tattoos for the skin are popular among children. There is however very little knowledge about the colourants that may be present in the picture tattoos and thus of the risk of contact allergic reactions. In the present investigation, 36 picture tattoos were analysed for the content of 129 organic colourants listed in the Cosmetic Directive, to which these products should co...

Introduction Dental materials are o en suspected to be the causative agent in contact allergic reactions [1, 2, 3, 4]. However, typical morphological correlates are not always found in the oral mucosa. Allergic contact stomatitis generally presents clinically as in ltrated erythema with or without erosions. Having said that, contact allergies occasionally present as lichenoid lesions in the ora...

Irritant and allergic contact dermatitis is commonly seen in patients complaining of itching, burning and irritation in the genital area. The aim of this retrospective study was to establish the prevalence of allergic contact dermatitis patients with genital complaints. We followed 33 patients with persistent or recurrent genital redness, itching and burning sensation. Diagnosis was made by his...

BACKGROUND The use of methylisothiazolinone (MI) in cosmetic products has caused an unprecedented epidemic of MI contact allergy. Current data concerning exposures at a European level are required. OBJECTIVES To describe demographics and MI exposures for European patients with MI contact allergy. METHODS Eleven European dermatology departments from eight European countries prospectively col...

The pine processionary caterpillar is the larval form of the Thaumetopoea pityocampa moth. Mediterranean forests regularly suffer plagues of this insect, which has been moving north as a result of global warming. When the small urticating hairs that develop during the last 3 larval stages are shed and can become airborne. If they come in contact with skin, they can cause a variety of reactions,...

©FSRH J Fam Plann Reprod Health Care 2008: 34(2) Background Itching following contact with latex condoms is a familiar problem in contraceptive services, and popular textbooks still maintain that it is frequently an excuse for avoiding condoms, or that spermicide is to blame.1 If a patient experiences symptoms on contact with other latex items as well as condoms then it would be reasonable to s...

Recent advances in interfacial constructions between composite polymer electrolytes and electrodes are reviewed. Moreover, the mechanisms of contact, ionic migration, electrochemical reactions them highlighted.

Haptens are small molecule irritants that bind to proteins and elicit an immune response. Haptens have been commonly used to study allergic contact dermatitis (ACD) using animal contact hypersensitivity (CHS) models. However, extensive research into contact hypersensitivity has offered a confusing and intriguing mechanism of allergic reactions occurring in the skin. The abilities of haptens to ...

We focus on a powerful aspect of chiral perturbation theory (χPT) which provides us with a “bridge” over different reactions. For this purpose, we study a contact operator which contributes p-wave π-production and several weak processes. We fix the unknown coupling of the contact operator using a matrix element of a low-energy weak process (pp → deνe), and then calculate the partial wave amplit...