Evolving concepts of oxidative stress and reactive oxygen species in cardiovascular disease

Area of Science:

• Biomedical Science
• Cardiovascular Research
• Oxidative Stress Biology

Background:

• Cardiovascular disease (CVD) remains a significant global health challenge, impacting millions worldwide.
• Oxidative stress is a critical factor in CVD development, including atherosclerosis, hypertension, and heart failure.
• Traditionally viewed as harmful, reactive oxygen species (ROS) are now recognized for their crucial roles in cellular signaling.

Purpose of the Study:

• To review recent advancements in understanding the role of ROS in cardiovascular diseases.
• To elucidate the complex signaling pathways mediated by ROS in CVD.
• To highlight major sources of ROS, such as mitochondria and NADPH oxidases, in cardiovascular pathophysiology.

Main Methods:

• Literature review of recent scientific publications.
• Analysis of studies focusing on oxidative stress and cardiovascular pathophysiology.
• Synthesis of evidence on ROS signaling mechanisms and sources.

Main Results:

• Emerging evidence reclassifies ROS from solely detrimental agents to important signaling molecules.
• Mitochondria and Nicotinamide Adenine Dinucleotide Phosphate (NADPH) oxidases are identified as primary sources of ROS involved in CVD.
• ROS signaling plays a complex role in mediating various cardiovascular conditions.

Conclusions:

• A nuanced understanding of ROS signaling is essential for developing novel CVD therapies.
• Targeting specific ROS sources or pathways may offer new therapeutic strategies for cardiovascular diseases.
• Further research into ROS biology is crucial for combating the burden of CVD.