Related Experiment Videos
Asthma and atypical bacterial infection.
E Rand Sutherland1, Richard J Martin
1National Jewish Medical and Research Center, Department of Medicine, 1400 Jackson St, J220, Denver, CO 80206, USA. sutherlande@njc.org
Chest
|December 15, 2007
Summary
Atypical bacteria, Mycoplasma pneumoniae and Chlamydophila pneumoniae, may contribute to asthma development and persistence. Emerging evidence suggests macrolide antibiotics may improve asthma symptoms and airway inflammation in some patients.
Area of Science:
- Respiratory Medicine
- Infectious Diseases
- Immunology
Background:
- Atypical bacteria, Mycoplasma pneumoniae and Chlamydophila pneumoniae, are increasingly implicated in asthma.
- Evidence links these pathogens to new-onset wheezing, asthma exacerbations, and reduced lung function.
Purpose of the Study:
- To investigate the role of M. pneumoniae and C. pneumoniae in asthma.
- To explore the potential of antibiotic therapy in managing asthma.
Main Methods:
- Review of human studies and animal models of M. pneumoniae and C. pneumoniae infections.
- Analysis of emerging clinical data on macrolide antibiotic treatment in asthma patients with atypical infections.
Main Results:
- Animal models show these bacteria can modulate allergic sensitization and pulmonary immune responses.
- Clinical studies indicate potential improvement in asthma symptoms and airway inflammation with macrolide antibiotics.
Conclusions:
- Atypical bacterial infections may play a role in asthma development and persistence.
- Macrolide antibiotics show promise for treating asthma in patients with coexisting atypical infections, warranting further research.
Related Concept Videos
Asthma I: Introduction
Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Atypical Pneumonia
Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Asthma-I: Introduction
Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
Asthma: Pathogenesis and Management
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma-II: Pathophysiology and Classification
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma-III: Symptoms and Complications
Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
Classification of Asthma