Evidence for a reduced histamine degradation capacity in a subgroup of patients with atopic eczema

150 150

Evidence for a reduced histamine degradation capacity in a subgroup of patients with atopic eczema

Maintz L1Benfadal SAllam JPHagemann TFimmers RNovak N.

1. Department of Dermatology, University of Bonn, Germany.

 2006 May;117(5):1106-12. Epub 2006 Feb 8.
PMID: 16675339
DOI: 10.1016/j.jaci.2005.11.041

Abstract

BACKGROUND:

A diminished histamine degradation based on a reduced diaminoxidase activity is suspected as a reason for non-IgE-mediated food intolerance caused by histamine. Atopic eczema (AE) is often complicated by relapses triggered by IgE-mediated allergy to different kinds of food. However, in a subgroup of patients with AE, allergy testing proves negative, although these patients report a coherence of food intake and worsening of AE and describe symptoms that are very similar to histamine intolerance (HIT).

OBJECTIVES:

It was the aim of our study to evaluate symptoms of HIT in combination with diaminoxidase levels in a total of 360 individuals consisting of patients with AE (n = 162) in comparison with patients with HIT (n = 124) without AE and healthy control volunteers (n = 85).

METHODS:

Histamine plasma level was determined with an ELISA and diaminoxidase serum activity with the help of radio extraction assays using [3H]-labeled putrescine-dihydrochloride as a substrate. Detailed clinical evaluations of characteristic features of AE and HIT were performed.

RESULTS:

Reduced diaminoxidase serum levels leading to occurrence of HIT symptoms like chronic headache, dysmenorrhea, flushing, gastrointestinal symptoms, and intolerance of histamine-rich food and alcohol were significantly more common in patients with AE than in controls. Reduction of both symptoms of HIT and Severity Scoring of Atopic Dermatitis could be achieved by a histamine-free diet in the subgroup of patients with AE and low diaminoxidase serum levels.

CONCLUSION:

Higher histamine plasma levels combined with a reduced histamine degradation capacity might influence the clinical course of a subgroup of patients with AE.

CLINICAL IMPLICATIONS:

As HIT emerges in a subgroup of patients with AE, a detailed anamnestic evaluation of food intolerance and HIT symptoms complemented by an allergological screening for food allergy, a diet diary, and, in confirmed suspicion of HIT, measurement of diaminoxidase activity and a histamine-free diet should be undertaken.

  • 0

Dejar una Respuesta

Tu dirección de correo electrónico no será publicada.

Este sitio usa Akismet para reducir el spam. Aprende cómo se procesan los datos de tus comentarios.

Privacy preferences

When you visit our website, it can store information via its web browser specific services, usually in the form of cookies. Here you can change your privacy preferences. It should be noted that the blocking of some types of cookies may affect your experience on our web site and the services we can offer you. You can see our cookies policy here.

Click to enable/disable Google Analytics tracking code.
Click to enable/disable Google Fonts.
Click to enable/disable Google Maps.
Click to enable/disable video embeds.
Our website uses cookies of third-party services. You can define privacy preferences and/or accept our use of cookies. If you continue browsing you are deemed to have accepted our privacy and cookie policy.