Vitamin A, Its Receptors and Asthma
Vitamin A, Its Receptors and Asthma
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.
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.
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

 Exclusion Criteria:

 -  Children under age 18

 -  Adults 65 or older

 -  Patients with COPD