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Related Experiment Video

Updated: Jul 6, 2026

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

Published on: February 25, 2016

Redox signaling, vascular function, and hypertension.

Moo Yeol Lee¹, Kathy K Griendling

¹Department of Medicine, Division of Cardiology, Emory University, Atlanta, Georgia 30322, USA.

Antioxidants & Redox Signaling

|March 7, 2008

Summary

Redox signaling, involving reactive oxygen species (ROS), plays a critical role in hypertension by altering blood vessel function and structure. Understanding vascular redox systems is key to understanding high blood pressure.

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Two-photon Imaging of Intracellular Ca2+ Handling and Nitric Oxide Production in Endothelial and Smooth Muscle Cells of an Isolated Rat Aorta

Two-photon Imaging of Intracellular Ca²⁺ Handling and Nitric Oxide Production in Endothelial and Smooth Muscle Cells of an Isolated Rat Aorta

Published on: June 10, 2015

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Last Updated: Jul 6, 2026

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

Published on: February 25, 2016

Two-photon Imaging of Intracellular Ca2+ Handling and Nitric Oxide Production in Endothelial and Smooth Muscle Cells of an Isolated Rat Aorta

Two-photon Imaging of Intracellular Ca²⁺ Handling and Nitric Oxide Production in Endothelial and Smooth Muscle Cells of an Isolated Rat Aorta

Published on: June 10, 2015

Area of Science:

Cardiovascular Science
Physiology
Biochemistry

Background:

Hypertension involves elevated vascular resistance due to impaired vasomotor function and blood vessel remodeling.
Redox signaling, particularly reactive oxygen species (ROS) and antioxidant activity, is increasingly recognized in vascular physiology and pathology.

Purpose of the Study:

To explore the multifaceted roles of redox signaling in the pathogenesis and progression of hypertension.
To elucidate how aberrant redox signaling affects vascular function and structure in the context of high blood pressure.

Main Methods:

Review of existing literature on redox signaling in vascular biology and hypertension.
Analysis of the mechanisms by which reactive oxygen species (ROS) influence vascular tone and remodeling.

Main Results:

Excessive ROS production or decreased antioxidant capacity disrupts vascular function.
ROS directly impact vascular smooth muscle contractility and endothelial regulation, increasing vascular tone.
ROS contribute to vascular remodeling by affecting vascular cell phenotype, growth, death, migration, and extracellular matrix reorganization.

Conclusions:

The vascular redox system significantly contributes to hypertension through diverse mechanisms.
Aberrant redox signaling is a key driver of both functional and structural vascular changes in hypertension.
Considering the complexity and spatial variations of redox signaling is essential for a comprehensive understanding of hypertension.