Related Experiment Video
Updated: Oct 7, 2025

Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
Published on: August 25, 2017
Current views in chronic obstructive pulmonary disease pathogenesis and management.
Ahmed J Alfahad1, Mai M Alzaydi1, Ahmad M Aldossary1
1National Center of Biotechnology, Life Science and Environment Research Institute, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia.
Chronic obstructive pulmonary disease (COPD) involves lung damage from smoking and toxins. Mitochondrial and epigenetic changes are key factors in COPD development and progression.
Area of Science:
- Pulmonary Medicine
- Molecular Biology
- Genetics
Background:
- Chronic obstructive pulmonary disease (COPD) is a progressive lung disease primarily caused by environmental factors like cigarette smoking.
- Exposure to harmful particles triggers inflammatory responses, leading to irreversible respiratory damage.
- Genetic predisposition and aging also contribute to COPD development.
Purpose of the Study:
- To review recent advancements in understanding COPD pathology and pathophysiology.
- To highlight the roles of mitochondrial dysfunction and epigenetic alterations in COPD.
- To explore the potential of nanomedicine in COPD prevention and treatment.
Main Methods:
- Literature review of recent scientific publications.
- Analysis of molecular pathways involved in COPD pathogenesis.
- Focus on mitochondrial and epigenetic variations.
Main Results:
- Mitochondrial alterations, including DNA damage, increased ROS, and disrupted autophagy/apoptosis, are implicated in COPD.
- Epigenetic modifications such as DNA methylation, histone modification, and non-coding RNA changes are associated with COPD.
- Nanomedicine presents a promising avenue for future COPD interventions.
Conclusions:
- Mitochondrial dysfunction and epigenetic alterations are critical molecular mechanisms in COPD.
- Further research into these pathways could lead to novel therapeutic strategies.
- Nanomedicine holds potential for innovative approaches to manage and treat COPD.
More Related Videos
Related Concept Videos
Chronic Obstructive Pulmonary Disease-V: Management
Smoking Cessation
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Chronic Obstructive Pulmonary Disease-V: Nursing Management
Assessment
Chronic Obstructive Pulmonary Disease-I: Introduction
COPD: Pathogenesis and Clinical Features
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...

