Vascular Aging
Conditions
Keywords
arterial function, cardiovascular, aging, endothelial function, arterial stiffness, vascular function, Trehalose
Brief summary
The proposed study will assess the ability of a naturally occurring sugar to improve the function of arteries with age. Overall, the proposed research project has the long-term potential to influence clinical practice guidelines by establishing a novel, easy to deliver, cost-effective therapy for treating age-associated arterial dysfunction and reducing the risk of cardiovascular disease with age.
Interventions
100g maltose 1/day
100g 1/day
Sponsors
Study design
Eligibility
Inclusion criteria
* women must be postmenopausal * body mass index (BMI) \<40 kg/m2 * weight stable in the prior 3 months * absence of clinical disease as determined by medical history, physical examination, blood and urine chemistries, ankle-brachial index, and a graded exercise stress test with monitoring of blood pressure and 12-lead ECG
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Arterial Stiffness | 12 weeks | Arterial pulse wave velocity |
| nitric-oxide mediated endothelium-dependent dilation | 12 weeks | flow-mediated dilation and forearm blood flow responses to acetylcholine in the presence and absence of N'-monomethyl-L-arginine |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Systemic oxidative stress and inflammation | 12 weeks | circulating markers of oxidative stress and inflammation |
| Endothelial cell oxidative stress and inflammation | 12 weeks | inflammatory and oxidative stress markers in biopsied vascular and arterial endothelial cells |
| Insulin sensitivity | 12 weeks | intravenous glucose tolerance test |
| Endothelial cell autophagic flux | 12 weeks | — |
Countries
United States