chronic urticaria is defined as a skin disease with central induration (wheal) and erythema formation around it (flare) that appears at least twice a week and remains at least for 6 weeks continually. the incidence of urticaria in children is about 0.1-3%. most cases of chronic urticaria occur in children between 6-11 years. autoimmune and allergy immaturity is one of the reasons of lower incid...

chronic urticaria is the most common skin diseases, characterized by chronic cutaneous lesions which severely debilitates patients in several aspects of their everyday life. vitamin d is known to exert several actions in the immune system and to influence function and differentiation of mast cells, central role players in the pathogenesis of chronic idiopathic urticaria. this study was performe...

chronic idiopathic urticaria is defined as recurrent hives occurring for at least 6 weeks. in  the  majority of  cases, there  is no  identifiable underlying etiology despite  extensive evaluation. a subset of these patients is classified as having autoimmune urticaria defined by the presence of a functional igg antibody to the α subunit of the high-affinity ige receptor (fceria) or to ige. the...

omalizumab is a recombinant humanized anti-ig e monoclonal antibody used as the third line treatment of chronic spontaneous urticaria (csu). we report four patients with severe antihistamine-resistant csu, who developed angioedema, anaphylaxis and/or flare up of urticaria at different times following omalizumab therapy.

abstract background: chronic urticaria (cu) is a common dermatological disease that induces a substantial burden on individuals’ life. also if one’s self-image changes (which usually happen in patients with dermatological diseases), it leads to anxiety or other various symptoms. we aimed to compare the psychological scales in patients with cu with non-dermatological individuals with the purpose...

background: chronic idiopathic urticaria is defined as urticaria, which lasts for more than 8 weeks and has no apparent etiology. the aim of this study was to examine the causal role of helicobacter pylori infection in chronic idiopathic urticaria.   methods: fifty-six patients with chronic idiopathic urticaria and a negative response to skin prick test for common aeroallergens were selected. t...

introduction: auto – immune disorders have been implicated as a cause for chronic uricaria and/ or angioedema and thyroid autoimmunity has been increasingly introduced to be associated with that. this study explores the association of thyroid autoimmunity with chronic urticaria and / or angioedema in isfahani patients. methods: anti – thyroperoxidase (ani – tpo) and anti – thyroglobulin (anti –...