Background: Eczema is one of the most widely spread inflammatory skin disorders contact dermatitis is an eczematous dermatitis that is produced as a result of contact with a substance in the environment. The substance can act as an irritant or allergen. Every country has allergen particular to itself. Objective: Determining the frequency of skin allergens in patients with contact dermatitis in ...

The American Contact Dermatitis Society chose acetophenone azine (AA) as the 2021 Allergen of Year. Acetophenone is an emerging contact allergen that often associated with use sports equipment and footwear. pattern dermatitis initially starts locally at site but can develop into a generalized dermatitis. Strong suspicion necessary to diagnose AA allergy, patch testing should be completed potent...

In a cohort of 849 infants with an asthmatic sibling, the authors examined the relations of exposure to allergens (dust mite, cockroach, cat, and dog), nitrogen dioxide, and mold with symptoms of wheeze and persistent cough in the first year of life (1998-2000). Among infants whose mothers had physician-diagnosed asthma, neither dust mite allergen nor dog allergen was associated with either sym...

Recombinant allergens are a promising alternative to crude allergen extracts for diagnosis and therapy of allergic diseases. Genetically modified allergen derivatives with reduced allergenic activity but retaining their immunogenicity have also been produced to increase safety and specificity of allergen-specific immunotherapy. When a limited number of allergens are responsible for most of the ...

BACKGROUND Although mouse allergen is known to cause occupational asthma in laboratory workers, its potential significance in home environments has never been studied. OBJECTIVE This study was designed to define the prevalence of mouse sensitivity and its relationship to mouse allergen exposure and disease activity in inner-city children with asthma. METHODS A subset of 499 subjects from th...

BACKGROUND Airway responsiveness to histamine and methacholine, direct smooth muscle spasmogens, is increased following inhalation of allergen. Although the aetiology of this phenomenon is unclear, increased cellular or neural activity may be involved since allergen also induces increases in airway responsiveness to the mast cell stimulus adenosine-5'-monophosphate (AMP) and the neural stimulus...

Allergen specific CD4+ T cell clones generated from allergic individuals have been shown to produce increased levels of the cytokine interleukin 4 (IL-4), compared to allergen specific clones generated from nonallergic individuals. This difference between CD4+ T cells from allergic and nonallergic individuals with regard to cytokine production in response to allergen is thought to be responsibl...

PURPOSE OF REVIEW Molecular allergology uses pure, mainly recombinant and structurally defined allergen molecules and allergen-derived epitopes to study mechanisms of IgE-associated allergy, to diagnose, and even predict the development of allergic manifestations and to treat and prevent IgE-associated allergies. Atopic dermatitis, a chronic inflammatory skin disease is almost always associated...

BACKGROUND Vaccines consisting of allergen-derived peptides lacking IgE reactivity and allergen-specific T cell epitopes bound to allergen-unrelated carrier molecules have been suggested as candidates for allergen-specific immunotherapy. OBJECTIVE To study whether prophylactic and therapeutic vaccination with carrier-bound peptides from the major birch pollen allergen Bet v 1 lacking allergen...

Allergen exposure can confound the management of asthma. To understand the potential mechanisms by which allergens increase the steroid requirements in atopic asthmatics, we examined the effects of allergens on glucocorticoid receptor (GCR) binding affinity and glucocorticoid (GC) responsiveness of peripheral blood mononuclear cells (PBMC) from atopic asthmatics. A significant reduction (p < 0....