Microvascular responsiveness in obesity: implications for therapeutic intervention
Zsolt Bagi1, Attila Feher, James Cassuto
1Department of Pharmacology, University of Oxford, UK Department of Physiology, New York Medical College, Valhalla, New York, USA. zsolt.bagi@pharm.ox.ac.uk
Unlabelled:
Obesity has detrimental effects on the microcirculation. Functional changes in microvascular responsiveness may increase the risk of developing cardiovascular complications in obese patients. Emerging evidence indicates that selective therapeutic targeting of the microvessels may prevent life-threatening obesity-related vascular complications, such as ischaemic heart disease, heart failure and hypertension. It is also plausible that alterations in adipose tissue microcirculation contribute to the development of obesity. Therefore, targeting adipose tissue arterioles could represent a novel approach to reducing obesity. This review aims to examine recent studies that have been focused on vasomotor dysfunction of resistance arteries in obese humans and animal models of obesity. Particularly, findings in coronary resistance arteries are contrasted to those obtained in other vascular beds. We provide examples of therapeutic attempts, such as use of statins, ACE inhibitors and insulin sensitizers to prevent obesity-related microvascular complications. We further identify some of the important challenges and opportunities going forward.
Linked Articles:
This article is part of a themed section on Fat and Vascular Responsiveness. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2012.165.issue-3.
Insights
Obesity impairs blood vessel function, increasing cardiovascular risks. Targeting microcirculation in fat tissue may offer new ways to treat obesity and related vascular issues.
Area of Science:
- Cardiovascular Physiology
- Obesity Research
- Microvascular Function
Background:
- Obesity negatively impacts microcirculation and vascular responsiveness.
- This can heighten the risk of cardiovascular complications in obese individuals.
- Alterations in adipose tissue microcirculation may contribute to obesity development.
Purpose of the Study:
- To review studies on vasomotor dysfunction in resistance arteries of obese humans and animals.
- To contrast findings in coronary resistance arteries with other vascular beds.
- To explore therapeutic strategies for obesity-related microvascular complications.
Main Methods:
- Review of recent scientific literature on obesity and microvascular function.
- Comparative analysis of vasomotor dysfunction in different vascular beds.
- Examination of therapeutic interventions for microvascular complications.
Main Results:
- Obesity causes detrimental changes in microvascular responsiveness.
- Targeting microvessels, particularly in adipose tissue, shows potential for treating obesity and vascular complications.
- Statins, ACE inhibitors, and insulin sensitizers are among therapeutic examples.
Conclusions:
- Microvascular dysfunction is a key factor in obesity-related cardiovascular disease.
- Therapeutic strategies targeting microcirculation offer promising avenues for managing obesity and its vascular consequences.
- Further research is needed to address challenges and explore opportunities in this field.
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