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Allergic asthma and the legacy of structural racism on the African American urban communities Asthma is a chronic inflammatory disease that is characterized by bronchial hyperreactivity (wheezing due to narrowing of the airways) and it disproportionately affects African Americans. Allergic asthma is a chronic inflammatory disease that is characterized by bronchial hyperreactivity and elevation of allergic antibodies. In the United States approximately 25 million people are affected by this disease with a death toll of about 3,500 per year. African American children are at least 10 times more likely to die from asthma than their white counterparts. Collectively, the mortality rate in the African American population is double the rate in Caucasians (21.8 vs 9.5 death rate per million). The 2005 Agency for Healthcare Research and Quality's report on the Disparity in Health Care among African Americans and Ethnic minority reported allergic asthma as the second largest disparity in the quality of health care for them versus Caucasians. Today, health disparity in asthma persists and several hypotheses for this disparity have been proposed.
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Navigating the Terrain: Type 2 Cytokines and Biologic Intervention in Severe Eosinophilic Asthma
Asthma is a chronic respiratory disease characterized by bronchial hyperreactivity. There are several endotypes of which allergic asthma is the most common. Severe eosinophilic asthma is prevalent in approximately 5% of asthmatics and its phenotype overlaps with allergic asthma and type 2 inflammation. Patients with refractiveness to corticosteroids underline the difficulty in controlling persistent inflammation in severe eosinophilic asthma. The focus of biological therapies is geared towards the understanding of the intricate interplay of the cytokines that drive the eosinophil’s ability to induce chronic inflammation with airway obstruction. This chapter takes the reader down a historical journey of initial studies that were performed using mouse helper T cell clones for reconstitution experiments to unravel the mechanism of the role T helper 2 cytokines play in allergic asthma. We then reviewed the classic in vivo experiments that demonstrated how antibodies to IL5 can down regulate eosinophils in the blood and their progenitors in the bone marrow of mice. We also delve into the complex interaction of the alarmins on the cytokines triggers of allergic inflammation with elevated eosinophils. Finally, we review the clinical literature on the beneficial effects of humanized monoclonal antibodies in use for treatment of patients suffering from severe eosinophilic asthma.
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- Award ID(s):
- 2000433
- PAR ID:
- 10631561
- Publisher / Repository:
- IntechOpen
- Date Published:
- ISBN:
- 978-0-85466-731-4
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Book Chapter:
- https://doi.org/10.5772/intechopen.1006274
