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Videos de Conceptos Relacionados

Asthma I: Introduction01:28

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...
Asthma-I: Introduction01:29

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 Management01:20

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-II: Pathophysiology and Classification01:26

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:
Asthma-III: Symptoms and Complications01:24

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
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...

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Video Experimental Relacionado

Updated: May 7, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Asma El asma es el asma.

Fernando D Martinez1, Donata Vercelli

  • 1Arizona Respiratory Center and BIO5 Institute, University of Arizona, Tucson, AZ, USA.

Lancet (London, England)
|September 18, 2013
PubMed
Resumen
Este resumen es generado por máquina.

El asma implica obstrucción reversible de las vías respiratorias, a menudo comenzando en la infancia con vínculos genéticos. La exposición microbiana temprana puede proteger contra el asma, mientras que las nuevas terapias biológicas ofrecen esperanza para los casos graves.

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Murine Model of Allergen Induced Asthma
08:05

Murine Model of Allergen Induced Asthma

Published on: May 14, 2012

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Last Updated: May 7, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Murine Model of Allergen Induced Asthma
08:05

Murine Model of Allergen Induced Asthma

Published on: May 14, 2012

Área de la Ciencia:

  • Pulmonología Pulmonología.
  • Genética La genética.
  • Inmunología Inmunología.

Sus antecedentes:

  • El asma es una afección respiratoria compleja caracterizada por una obstrucción bronquial recurrente y reversible, que con frecuencia comienza en la infancia.
  • Los factores genéticos juegan un papel importante, y las variaciones genéticas identificadas aumentan el riesgo de asma.
  • Se observan asociaciones con infecciones virales y microbiota de las vías respiratorias alterada, pero su papel causal sigue sin estar claro.

Objetivo del estudio:

  • Explorar la patogénesis del asma, centrándose en los factores genéticos e inmunológicos.
  • Investigar posibles estrategias preventivas, en particular la exposición microbiana en los primeros años de vida.
  • Revisar los enfoques terapéuticos actuales y emergentes para el asma leve, moderada y grave.

Principales métodos:

  • Revisión de estudios genéticos, incluidos los estudios de asociación de todo el genoma (GWAS).
  • Análisis de datos inmunológicos que implican células residentes en el pulmón y epitelio de la mucosa.
  • Examen de los hallazgos epidemiológicos sobre exposiciones ambientales tempranas en la vida.
  • Evaluación de las directrices actuales de tratamiento y las terapias biológicas emergentes.

Principales resultados:

  • Las variaciones genéticas contribuyen a la susceptibilidad al asma.
  • La exposición temprana a productos microbianos, especialmente en entornos agrícolas, muestra un efecto protector.
  • Las respuestas defectuosas de las células residentes pulmonares son clave en la patogénesis del asma.
  • Los corticosteroides inhalados son estándar para el asma leve a moderada, pero la adherencia es un desafío.
  • Las terapias biológicas dirigidas a IgE, IL-5 e IL-13 son prometedoras para el asma severa y refractaria.

Conclusiones:

  • La patogénesis del asma implica una predisposición genética y una desregulación inmune.
  • Las exposiciones ambientales en los primeros años de vida pueden ofrecer una nueva vía de prevención.
  • La adherencia a los corticosteroides inhalados sigue siendo un obstáculo en el tratamiento.
  • Las terapias biológicas dirigidas representan un avance significativo para el manejo del asma grave.