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Related Experiment Video

Updated: Jun 12, 2026

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Published on: October 15, 2010

Hyperhomocysteinemia and Endothelial Dysfunction.

Zhongjian Cheng¹, Xiaofeng Yang, Hong Wang

¹Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA, USA.

Current Hypertension Reviews

|May 25, 2010

Summary

This summary is machine-generated.

Hyperhomocysteinemia (HHcy) significantly increases cardiovascular disease risk by causing endothelial dysfunction (ED). This review details six key mechanisms, including nitric oxide inhibition and oxidative stress, through which HHcy induces ED.

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Area of Science:

Cardiovascular Science
Vascular Biology
Biochemistry

Background:

Hyperhomocysteinemia (HHcy) is a major independent risk factor for cardiovascular diseases.
Endothelial dysfunction (ED) is an early marker of atherosclerosis and vascular pathologies.
Previous studies demonstrate HHcy induces ED in human and animal models.

Purpose of the Study:

To elaborate on the proposed mechanisms of HHcy-induced ED.
To discuss the biological and molecular events underlying HHcy-induced ED.

Main Methods:

Literature review of studies investigating HHcy and ED.
Analysis of proposed molecular mechanisms.

Main Results:

Six primary mechanisms contribute to HHcy-induced ED: nitric oxide inhibition, prostanoids regulation, endothelium-derived hyperpolarizing factors suppression, angiotensin II receptor-1 activation, endothelin-1 induction, and oxidative stress.
These mechanisms involve complex biological and molecular alterations in the endothelium.

Conclusions:

HHcy-induced ED is multifactorial, involving several key pathways.
Understanding these mechanisms is crucial for developing therapeutic strategies against HHcy-related cardiovascular diseases.