Human IgE-independent systemic anaphylaxis

Pediatric anaphylaxis and hyper IgE syndrome

Patients with autosomal-dominant (AD) hyper immunoglobulin E (IgE) syndrome (HIES) or Job syndrome develop frequent dermatologic and pulmonary infections. As patients have an extreme elevation of IgE levels, this database analysis study sought to study the association between AD HIES, Job syndrome, and anaphylaxis. HIES is a heterogeneous group of immune disorders characterized by extremely ele...

Fatal anaphylaxis in systemic mastocytosis.

A 42-year-old woman died after an episode of anaphylaxis associated with a raised serum histamine level. A diagnosis of systemic mastocytosis was established, with lymphadenopathy and hepatosplenomegaly, not associated with the usually pre-existing skin lesions of urticaria pigmentosa.

Skin Reaction without Systemic Anaphylaxis but Mast Cell-Dependent Immediate-Type Vaccine Peptides Elicit an IgE-Independent Nonmutated Self-Antigen-Derived Cancer

Anaphylaxis after Hymenoptera sting without detectable specific IgE.

Current guidelines for venom immunotherapy suggest that immunotherapy should be performed only in patients with IgE mediated systemic reactions. However, opinions on the diagnosis and treatment of patients with systemic reactions in the absence of IgE are quite varied. We present a patient with a history of atypical systemic reactions after a bee sting. Skin tests and specific IgE for bee venom...

Identification of markers that distinguish IgE- from IgG-mediated anaphylaxis.

IgG-mediated anaphylaxis occurs in mice and may contribute to human reactions to infused drugs. To distinguish IgE- from putative IgG-mediated human anaphylaxis, we developed blood markers for murine anaphylaxis and evaluated their human relevance. Both IgG- and IgE-mediated anaphylaxis were characterized by decreased basophil and monocyte percentages and an increased neutrophil percentage in m...