Characterization of the Role of Histamine in Children With Asthma
Abstract
Asthma, a chronic disease which produces significant morbidity and mortality in children, is a significant health problem to a large segment of society. Despite considerable advances in the diagnosis and treatment of asthma over the past several years, a sizeable portion of patients do not respond to the "core" treatments. The investigators are now learning that the underlying pathophysiology of disease is different among patients with asthma therefore; treatments which are beneficial in some patient groups may be not achieve affect in other groups.
Antihistamines have been studied in the past for the treatment of asthma. These studies have shown that there may be a beneficial effect of antihistamines in patients with allergic asthma where histamine likely plays a large role in disease and treatment response. However, there is not enough evidence to include these drugs in the standard treatment of asthma.
The investigators hypothesize that histamine plays a definable, significant role in disease pathogenesis and treatment response in children with allergic asthma. The investigators plan to test this overall hypothesis through two specific aims. The first aim will characterize the relative contribution of histamine in allergic vs. non-allergic asthma. This aim will be accomplished by comparison of the microvasculature response to histamine in children with allergic asthma and children with non-allergic asthma, measured by histamine iontophoresis with laser Doppler (HILD)…
How strong is the evidence?
Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 211 participants or records.
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