Vitamin A, Its Receptors and Asthma

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2008-05-31

Study Completion Date

2012-12-31

Brief Summary

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We wish to understand the association of Vitamin A serum levels and Vitamin A receptor number and responsiveness in asthmatics. We believe that Vitamin A receptors may be less prevalent in asthmatics and their responsiveness decreased.

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Detailed Description

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We wish to define the association of asthma, vitamin A serum levels and vitamin A receptor number and responsiveness on circulating mononuclear cells. Asthma is a complex, heterogenous and often debilitating and potentially deadly disease. The causes for asthma are many, with susceptibility and resistance to treatment is poorly understood. Ultimately, looking at this disease from another angle such as the role of Vitamin A and/or receptors can help us learn more about the pathophysiology and treatment of asthma.

Conditions

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Asthma

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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1

No interventions assigned to this group

2

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Patients with previously diagnosed asthma on inhaled corticosteroids, systemic steroids and/or long acting beta agonist (for a period of 6 mo to 5 years)
* Age 18-64
* Male or female