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Allergy. 2003 Aug;58(8):762-6.

Relationship between airway hyperresponsiveness to mannitol and adenosine monophosphate.

Author information

1
Asthma and Allergy Research Group, Ninewells University Hospital and Medical School, Dundee, UK.

Abstract

BACKGROUND:

Assessment of airway hyperresponsiveness (AHR) to indirect bronchoconstrictor stimuli is a useful noninvasive tool in the evaluation of asthma and its treatment. We investigated the putative relationship in AHR between inhaled adenosine monophosphate and mannitol.

METHODS:

Fifteen mild-to-moderate atopic asthmatics were evaluated. On two separate screening days, the threshold AMP concentration and threshold mannitol dose to provoke a given fall in FEV1 were measured.

RESULTS:

For AMP PC20vs. mannitol PD15, the Pearsons correlation coefficient was 0.80, P < 0.001. For AMP PC15vs. mannitol PD15 and AMP PC10vs. mannitol PD10 corresponding values were 0.83, P < 0.001 and 0.68, P = 0.005.

CONCLUSIONS:

There was a highly significant association between the threshold concentration of AMP and dose of mannitol causing a given fall in FEV1. Further studies are required to evaluate the relationship between inhaled mannitol and other surrogate inflammatory markers.

[Indexed for MEDLINE]

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