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Related Concept Videos

Chronic Obstructive Pulmonary Disease II: Emphysema01:23

Chronic Obstructive Pulmonary Disease II: Emphysema

Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
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Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
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Cystic Fibrosis: Management01:24

Cystic Fibrosis: Management

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Updated: Jun 16, 2026

Fingerprinting Cardiolipin in Leukocytes by Mass Spectrometry for a Rapid Diagnosis of Barth Syndrome
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[Alpha1-antitrypsin deficiency].

T Köhnlein1, K Rifai

  • 1Klinik für Pneumologie, Medizinische Hochschule Hannover, Hannover, Deutschland.

Der Internist
|February 6, 2010
PubMed
Summary
This summary is machine-generated.

Alpha(1)-antitrypsin deficiency causes reduced antiprotease levels, leading to lung emphysema and liver disease. Early diagnosis and intervention, including smoking cessation and specific treatments, are crucial for managing this common hereditary condition.

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Area of Science:

  • Genetics and Molecular Biology
  • Pulmonology
  • Hepatology

Context:

  • Alpha(1)-antitrypsin deficiency (AATD) is a common inherited disorder in Caucasians.
  • It is a significant cause of obstructive airway diseases, accounting for approximately 2% of cases.
  • AATD can manifest in infancy as cholestatic hepatitis or later in life as chronic liver disease, cirrhosis, and hepatocellular carcinoma.

Purpose:

  • To outline the clinical characteristics, diagnosis, and management of Alpha(1)-antitrypsin deficiency.
  • To emphasize the importance of early recognition for effective prophylactic and therapeutic interventions.
  • To detail treatment strategies for both pulmonary and hepatic manifestations of AATD.

Summary:

  • AATD is characterized by low serum alpha(1)-antitrypsin, a key antiprotease, leading to lung emphysema and potential liver disease.
  • Pulmonary symptoms include cough, sputum, and dyspnea, while liver issues range from neonatal hepatitis to adult cirrhosis and liver cancer.
  • Diagnosis relies on reduced serum AAT levels and genetic testing, with early detection being critical for management.

Impact:

  • Highlights the dual organ impact of AATD, affecting both respiratory and hepatic systems.
  • Stresses the need for prompt diagnosis and management to prevent disease progression and improve patient outcomes.
  • Provides a comprehensive overview of current and experimental therapeutic options, including augmentation therapy and transplantation.