[Oxidative stress and endothelial dysfunction]

Area of Science:

• Cardiovascular Medicine
• Pathophysiology
• Biochemistry

Background:

• Coronary Heart Disease (CHD) presents a growing global challenge, with atherosclerosis as its underlying pathology.
• Endothelial dysfunction, marked by biochemical and structural arterial changes, is an early indicator of atherosclerosis.
• The free radical theory is a prominent explanation for atherosclerosis, involving oxidative stress.

Purpose of the Study:

• To discuss the pathophysiology of oxidative stress.
• To elucidate the role of oxidative stress in endothelial dysfunction.
• To review medications that positively impact oxidative stress and endothelial function.

Main Methods:

• Literature review and discussion of scientific theories.
• Analysis of the biochemical mechanisms of oxidative stress.
• Examination of the effects of various drug classes on oxidative stress and endothelial function.

Main Results:

• Oxidative stress, stemming from imbalanced free radical activity, damages lipoproteins, nitric oxide (NO), and endothelial cells.
• This damage culminates in endothelial dysfunction, a key factor in atherosclerosis progression.
• Several medications, including statins, ACE inhibitors, and antioxidants, show potential benefits.

Conclusions:

• Oxidative stress is a critical factor in the development of endothelial dysfunction and CHD.
• Targeting oxidative stress with appropriate medications may offer a therapeutic strategy for managing CHD.
• Further research into the therapeutic applications of these medications is warranted.