{"id":10604,"date":"2019-10-15T18:06:00","date_gmt":"2019-10-15T18:06:00","guid":{"rendered":"https:\/\/www.deficitdao.org\/2019\/10\/15\/impaired-resolution-of-wheals-in-the-skin-prick-test-and-low-diamine-oxidase-blood-level-in-allergic-patients\/"},"modified":"2025-07-16T20:42:48","modified_gmt":"2025-07-16T20:42:48","slug":"impaired-resolution-of-wheals-in-the-skin-prick-test-and-low-diamine-oxidase-blood-level-in-allergic-patients","status":"publish","type":"post","link":"https:\/\/www.deficitdao.org\/en\/2019\/10\/15\/impaired-resolution-of-wheals-in-the-skin-prick-test-and-low-diamine-oxidase-blood-level-in-allergic-patients\/","title":{"rendered":"Impaired resolution of wheals in the skin prick test and low diamine oxidase blood level in allergic patients"},"content":{"rendered":"<h4><a href=\"https:\/\/www.deficitdao.org\/wp-content\/uploads\/2019\/11\/Impaired-resolution-low-DAO-2019.pdf\"><strong>Dowload pdf<\/strong><\/a><\/h4>\n<p>Aneta Wagner1, Krzysztof Buczy\u0142ko2, Hanna Zieli\u0144ska-Bli\u017aniewska1, Waldemar Wagner3<br \/>\n1Allergology and Respiratory Rehabilitation Department, Medical University of Lodz, Lodz, Poland<br \/>\n2NZOZ Allergology Center, Lodz, Poland<br \/>\n3Laboratory of Cellular Immunology, Institute of Medical Biology, Polish Academy of Sciences, Lodz, Poland Adv Dermatol Allergol 2019; XXXVI (5): 538\u2013543<br \/>\nDOI: https:\/\/doi.org\/10.5114\/ada.2019.89504<\/p>\n<p><strong>Abstract<\/strong><\/p>\n<p><strong>Introduction:\u00a0<\/strong>Histamine is the major mediator of IgE- and non-IgE-mediated allergic reactions upon allergen or hapten contact. Reduced histamine degradation capacity was associated with atopic eczema as well as with nonimmunological histamine intolerance. Higher blood serum histamine level concomitant with decreased intestinal diamine oxidase activity were observed in patients with food allergy.<\/p>\n<p><strong>Aim:\u00a0<\/strong>To evaluate the relationship between patients\u2019 blood diamine oxidase (DAO) activity\/histamine status and their reactivity to time-resolved histamine skin prick test in respect to vulnerability to allergic diseases. Material and methods: Fifty-three patients were examined with skin prick tests (SPT) and patch tests for suspected presence of either IgE- or non-IgE-mediated allergy. All individuals were skin prick tested with histamine and the resolution of the wheal was monitored for 50 min. Blood DAO activity and histamine concentration were measured with a radio-extraction radioimmunoassay.<\/p>\n<p><strong>Results:<\/strong> Time-resolved histamine skin prick testing revealed presence of wheals which were 35% larger in diameter in 47% of examined subjects at 20 min of the test. These patients exhibited significantly compromised time-course wheal resolution (wheal \u2265 3 mm at 50 min) compared to a group of patients with the normal-rate of wheal resolution (wheal = 0 mm at 50 min). Within a group of subjects exhibiting impaired wheal resolution, 61% of patients were diagnosed allergic compared to 50% in a group of patients with a normal rate of wheal resolution. Finally, allergic patients were characterized by a significantly lower DAO activity and higher histamine content compared to healthy subjects.<\/p>\n<p><strong>Conclusions:<\/strong> The results of this study indicate that patients with IgE- or non-IgE-mediated allergy are likely to have low DAO blood activity and may concomitantly suffer from histamine intolerance. Furthermore, our results suggest that allergic patients are more likely to develop an excessive SPT reaction. Our results emphasize caution in interpretation of the SPT results in allergic patients with diagnosed histamine intolerance or histamine\/DAO activity imbalance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dowload pdf Aneta Wagner1, Krzysztof Buczy\u0142ko2, Hanna Zieli\u0144ska-Bli\u017aniewska1, Waldemar Wagner3 1Allergology and Respiratory Rehabilitation Department, Medical University of Lodz, Lodz, Poland 2NZOZ Allergology Center, Lodz, Poland 3Laboratory of Cellular Immunology, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10599,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113,109,111,119],"tags":[158,148,135,155],"class_list":["post-10604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clinical-trials-and-clinical-studies","category-dao-and-dermatological-symptoms","category-dao-and-inmunological-symptoms","category-scientific-publications","tag-dao","tag-dao-deficiency","tag-diamine-oxidase","tag-histamine-intolerance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Impaired resolution of wheals in the skin prick test and low diamine oxidase blood level in allergic patients<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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