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Related Concept Videos

Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
COPD: Pathogenesis and Clinical Features01:20

COPD: Pathogenesis and Clinical Features

Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
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.
Pulmonary Hypertension: Classification and Pathogenesis01:30

Pulmonary Hypertension: Classification and Pathogenesis

Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...

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Related Experiment Video

Updated: May 20, 2026

Primary Sjogren's Syndrome Associated with Lung Adenocarcinoma: Probing the Potential Common Pathogenic Mechanisms and Experimental Verification
10:21

Primary Sjogren's Syndrome Associated with Lung Adenocarcinoma: Probing the Potential Common Pathogenic Mechanisms and Experimental Verification

Published on: September 20, 2024

[Sirtuin1 and lung disease].

Ji Shi1, Ai-Min Meng, Qi Hou

  • 1Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.

Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|July 17, 2012
PubMed
Summary
This summary is machine-generated.

Sirtuin1 (Sirt1), a histone deacetylase, influences lung immunity, inflammation, and aging. Its role in lung diseases like COPD, asthma, and cancer makes it a potential therapeutic target.

Related Experiment Videos

Last Updated: May 20, 2026

Primary Sjogren's Syndrome Associated with Lung Adenocarcinoma: Probing the Potential Common Pathogenic Mechanisms and Experimental Verification
10:21

Primary Sjogren's Syndrome Associated with Lung Adenocarcinoma: Probing the Potential Common Pathogenic Mechanisms and Experimental Verification

Published on: September 20, 2024

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Pulmonology

Background:

  • Sirtuin1 (Sirt1) is an NAD-dependent class III histone deacetylase.
  • Sirt1 regulates pulmonary immune/inflammatory responses and aging via post-translational modifications.

Purpose of the Study:

  • To review the physiological characteristics and biological activities of Sirtuin1.
  • To explore Sirt1's modification regulations and its involvement in lung diseases.

Main Methods:

  • Literature review of Sirt1's functions and roles in lung pathology.
  • Analysis of Sirt1's relationship with chronic obstructive pulmonary emphysema, asthma, and lung cancer.

Main Results:

  • Sirt1 plays a critical role in the development of various lung diseases.
  • Sirt1's involvement in immune/inflammatory pathways and aging is highlighted.

Conclusions:

  • Sirtuin1 is a key regulator in lung physiology and disease pathogenesis.
  • Sirt1 presents a potential therapeutic target for treating lung diseases such as COPD, asthma, and lung cancer.