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The purpose of this study us to investigate the effects of mistimed eating on blood pressure, kidney function and vascular function.
Despite advancements in pharmacologic antihypertensives, hypertension currently affects 1 in 3 Americans and accounts for more than $50 billion of health care spending. Importantly, hypertension is the leading cause of cardiovascular (CVD) and kidney diseases (CKD). As a result, the AHA/ACC lowered the diagnostic criteria for hypertension to encourage earlier preventative lifestyle intervention. There is a critical need to identify and implement novel lifestyle interventions in individuals with early-stage hypertension to prevent the subsequent development of CVD and CKD. Chronotherapy that aligns behavioral cues (such as time of eating) with the body's internal biological clocks, has gained much attention as a potential strategy to prevent and manage hypertension, however, the underlying mechanisms are not yet fully understood. The purpose of this study is to investigate the effects of mistimed eating on blood pressure, kidney function and vascular function.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Morning Meal Challenge | Experimental |
| |
| Late Night Meal Challenge | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Morning meal challenge | Other | A Western-style diet meal which will be individualized for caloric consumption by estimated total daily energy expenditure eaten after 1 hour of waking up in the morning |
| Measure | Description | Time Frame |
|---|---|---|
| Urinary sodium excretion and markers of kidney injury | Day and nocturnal urinary sodium, NGAL and KIM-1 | 24 hours |
| Measure | Description | Time Frame |
|---|---|---|
| 24hr ambulatory blood pressure | Day and nocturnal ambulatory blood pressure | 24 Hours |
| Macrovascular function | Brachial artery endothelial function assessed by flow mediated dilation |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Danielle Kirkman | Virginia Commonwealth University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Virginia Commonwealth Univesity | Richmond | Virginia | 232398 | United States |
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| ID | Term |
|---|---|
| D006973 | Hypertension |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
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| Evening meal challenge | Other | A Western-style diet meal which will be individualized for caloric consumption by estimated total daily energy expenditure eaten within 1 hour of going to bed |
|
| At baseline and after each 24hour experimental arm |
| Microvascular function | Skin blood flow response to local heating measured by laser doppler flowmetry | At baseline and after each 24hour experimental arm |