Oxidative Stress and Therapeutic Development in Lung Diseases

Journal of Pulmonary & Respiratory Medicine
|March 29, 2016
PubMed

Insights

Oxidative stress from reactive oxygen and nitrogen species (ROS/RNS) impacts lung disease. This review covers ROS/RNS, antioxidants, and therapeutic strategies for lung conditions.

Area of Science:

  • Pulmonary Medicine
  • Biochemistry
  • Pathophysiology

Background:

  • Oxidative stress, an imbalance between reactive oxygen and nitrogen species (ROS/RNS) and antioxidants, is implicated in lung disease pathogenesis.
  • ROS/RNS are produced from various sources and play roles in both normal physiology and disease states.

Purpose of the Study:

  • To provide a comprehensive overview of ROS/RNS and antioxidants in the context of lung diseases.
  • To discuss the relationship between oxidant/antioxidant imbalance and lung pathophysiology.
  • To review current and novel therapeutic strategies for managing oxidative stress in lung diseases.

Main Methods:

  • Literature review of scientific articles on oxidative stress, ROS/RNS, antioxidants, and lung diseases.
  • Synthesis of information regarding the sources of ROS/RNS, antioxidant defense systems, and their role in disease.
  • Analysis of therapeutic approaches, including their limitations and future directions.

Main Results:

  • ROS/RNS contribute significantly to the pathogenesis of various lung diseases.
  • Antioxidant systems are crucial for maintaining cellular homeostasis, but their capacity can be overwhelmed in disease states.
  • Current therapeutic strategies targeting oxidative stress have limitations, and novel approaches are under investigation.

Conclusions:

  • Understanding the role of ROS/RNS and antioxidants is vital for comprehending lung disease development.
  • Effective therapeutic strategies require addressing the complex interplay of oxidants and antioxidants.
  • Further research into novel antioxidant therapies holds promise for improving treatment outcomes in lung diseases.

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
5.0K
Oxygen Requirements and Growth Patterns01:29

Oxygen Requirements and Growth Patterns

Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
2.3K
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
19.5K
Phase I Oxidative Reactions: Overview01:19

Phase I Oxidative Reactions: Overview

Phase I biotransformation, or functionalization, is a crucial chemical process that converts drugs and other xenobiotics into more water-soluble forms, facilitating expulsion from the body. It involves oxidative, reductive, and hydrolytic reactions that add or unveil polar functional groups on lipophilic substrates. Key players in phase I reactions are the mixed-function oxidases. Situated in liver cell microsomes, these enzymes predominantly carry out drug metabolism. They require molecular...
974
COPD: Management Using Bronchodilators and Corticosteroids01:26

COPD: Management Using Bronchodilators and Corticosteroids

Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
1.1K
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure01:16

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
727