Related Experiment Video
Updated: Jul 16, 2026

Measuring the Stiffness of Ex Vivo Mouse Aortas Using Atomic Force Microscopy
Published on: October 19, 2016
The genetic basis for altered blood vessel function in disease: large artery stiffening
1The Cell Biology Laboratory, Baker Heart Research Institute, Melbourne, Victoria, Australia. alex.agrotis@baker.edu.au
Insights
Large artery stiffening with aging increases cardiovascular risk. Genetic variations influencing extracellular matrix and smooth muscle cell interactions are key to understanding and potentially treating this process.
Area of Science:
- Cardiovascular Science
- Aging Research
- Genetics
Background:
- Arterial stiffening is a hallmark of aging, linked to cardiovascular disease.
- This stiffening involves changes in the extracellular matrix and arterial smooth muscle cells.
- Elevated systolic blood pressure and pulse pressure are associated with arterial stiffening.
Purpose of the Study:
- To explore the role of genetic variation in large artery stiffening.
- To understand how factors modulating extracellular matrix influence arterial properties.
- To identify potential therapeutic targets for regulating arterial stiffening.
Main Methods:
- Analysis of genetic factors influencing extracellular matrix production and homeostasis.
- Investigation of interactions between extracellular matrix components and arterial smooth muscle cells.
- Correlation of genetic variations with age- and sex-related arterial stiffening.
Main Results:
- Genetic variations significantly contribute to the process of large artery stiffening.
- Growth-stimulating factors and modulators of extracellular matrix homeostasis play a crucial role.
- Understanding these genetic contributions is vital for comprehending arterial property changes.
Conclusions:
- Genetic variation is a significant factor in age-related large artery stiffening.
- Targeting genetic pathways could lead to novel clinical strategies.
- Further research into genetic influences may offer therapeutic benefits for cardiovascular health.
Abstract:
The progressive stiffening of the large arteries in humans that occurs during aging constitutes a potential risk factor for increased cardiovascular morbidity and mortality, and is accompanied by an elevation in systolic blood pressure and pulse pressure. While the underlying basis for these changes remains to be fully elucidated, factors that are able to influence the structure and composition of the extracellular matrix and the way it interacts with arterial smooth muscle cells could profoundly affect the properties of the large arteries. Thus, while age and sex represent important factors contributing to large artery stiffening, the variation in growth-stimulating factors and those that modulate extracellular production and homeostasis are also being increasingly recognized to play a key role in the process. Therefore, elucidating the contribution that genetic variation makes to large artery stiffening could ultimately provide the basis for clinical strategies designed to regulate the process for therapeutic benefit.
Related Concept Videos
Peripheral Artery Disease I: Introduction
Coronary Artery Disease II: Pathophysiology
Atherosclerosis I: Introduction
Coronary Artery Disease I: Introduction
Structure of Blood Vessels
Hypertension II: Pathophysiology
