Medicine and Health Sciences Commons^™

Exposure To Indoor Biomass Fuel Pollutants And Asthma Prevalence In Southeastern Kentucky: Results From The Burden Of Lung Disease (Bold) Study, Anna C. Barry, David M. Mannino, Claudia Hopenhayn, Heather Bush

David M. Mannino

BACKGROUND:

Asthma is a chronic inflammatory respiratory disease, characterized by episodic and reversible airflow obstruction and airway hyperresponsiveness and is influenced by both genetic and environmental factors.

METHODS:

The Burden of Obstructive Lung Disease (BOLD) survey was used to determine the prevalence of self-reported asthma in a target population of 325,000 adults aged > or =40 in Southeastern Kentucky. Postbronchodilator spirometry was used to classify subjects based on lung function. Risk factors for asthma in this population, in particular indoor usage of biomass fuels, were evaluated.

RESULTS:

The overall study population was comprised of 508 individuals, with 15.5% reporting current asthma …

Elevated Atmospheric Carbon Dioxide Concentrations Amplify Alternaria Alternata Sporulation And Total Antigen Production, Julie Wolf, Nichole R. O’Neill, Christine A. Rogers, Michael L. Muilenberg, Lewis H. Ziska

Christine A. Rogers

Background

Although the effect of elevated carbon dioxide (CO2) concentration on pollen production has been established in some plant species, impacts on fungal sporulation and antigen production have not been elucidated.

Objective

Our purpose was to examine the effects of rising atmospheric CO2 concentrations on the quantity and quality of fungal spores produced on timothy (Phleum pratense) leaves.

Methods

Timothy plants were grown at four CO2 concentrations (300, 400, 500, and 600 μmol/mol). Leaves were used as growth substrate for Alternaria alternata and Cladosporium phlei. The spore abundance produced by both fungi, as well as the size (microscopy) and antigenic …

Community Violence As Psychosocial Stressor: The Case Of Childhood Asthma In Boston, Gonzalo Bacigalupe, Takeo Fujiwara, Sabrina Selk, Meghan Woo

Gonzalo Bacigalupe, EdD, MPH

Childhood asthma is a critical public health problem of urban centers in the United States and other industrialized nations. Population-based and laboratory research studies indicate that psychosocial stress differentially affects asthma expression. Witnessing or experiencing community violence is a psychosocial stressor that results in long-term biological changes that may in turn contribute to asthma morbidity. This is a review of the literature that examines the exposure to violence as a psychosocial stressor that is independently associated with asthma morbidity even after adjustment for income, housing, and other adverse life events. In addition to acting as a physiological trigger for the …