Roles of cardiovascular risk factors in endothelial nitric oxide synthase regulation: an update

Area of Science:

• Cardiovascular Research
• Molecular Biology
• Vascular Biology

Background:

• Cardiovascular disease is a leading cause of death globally.
• Research focuses on understanding cardiovascular risk factors and their impact on the vascular system.
• The endothelial nitric oxide synthase-nitric oxide (eNOS-NO) system plays a crucial role in vascular health.

Purpose of the Study:

• To review current research on how cardiovascular risk factors affect the eNOS-NO system.
• To highlight discoveries related to both established and emerging risk factors.
• To explore the molecular mechanisms underlying eNOS-NO system impairment.

Main Methods:

• Literature review of recent studies on cardiovascular risk factors and the eNOS-NO system.
• Analysis of molecular mechanisms by which risk factors impact eNOS expression, activity, and NO bioavailability.
• Focus on established risks (hypertension, smoking, dyslipidemia, diabetes) and emerging risks (HIV, antiretroviral therapy, genetics, cytokines).

Main Results:

• Cardiovascular risk factors commonly impair the eNOS-NO system.
• Mechanisms include reduced NO bioavailability due to reactive oxygen species, inhibited eNOS expression/activity, and cofactor deficiency.
• Emerging risk factors like HIV infection and antiretroviral therapy also impact the eNOS-NO system.

Conclusions:

• Cardiovascular risk factors disrupt the eNOS-NO system through various molecular pathways.
• Understanding these disruptions is vital for developing novel prevention and treatment strategies.
• Further research into emerging risk factors' effects on the eNOS-NO system is warranted.