Effect of Acute Nitrate Supplementation on Vascular Function in Hispanic, Black and White Population

The University of Texas System (UT)

Status: Enrolling

Conditions: Healthy Adults

Treatments: Dietary Supplement: Beetroot juice; Dietary Supplement: Placebo drink

Study type: Interventional

Funder types: Other

Identifiers

NCT05188079

STUDY00001163

Details and patient eligibility

About

The purpose of the study is to assess vascular function in African Americans, Hispanic and Caucasian Americans to better understand racial differences in cardiovascular health. The investigators will further investigate the affect of Beetroot juice on the vascular function of all participants.

Full description

African Americans and Hispanic individuals have the highest incidence of type 2 diabetes, which increases their risk of all cardiovascular diseases. One of the hallmarks of type 2 diabetes is vascular dysfunction, caused by a lack of nitric oxide bioavailability. Vascular function and blood flow responses to exercise have been shown to improve after nitrate supplementation (beetroot juice), However, whether nitrate supplementation will improve vascular function in African American and Hispanic individuals remains unknown. The investigators will perform a randomized, placebo-controlled study in healthy African American, Hispanic and Caucasian subjects. They will be studied before and 90 minutes after consuming Beetroot juice (high nitrate supplement) or Placebo, with at least 1-week washout period between the two visits (Kenjale AA et al., J Appl Physiol 2011).

Enrollment: 90 estimated patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Healthy men and women who are either Caucasian American, Hispanic, or non-Hispanic African American

Exclusion criteria

• Blood pressure higher than or equal to 140/90 mmHg
• BMI > 35kg/m2
• Have a history of cardiovascular, neurological or vascular diseases
• Take prescription medications
• Are smokers
• Are pregnant

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Triple Blind

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90 participants in 2 patient groups, including a placebo group

Beetroot Juice

Active Comparator group

Description:

140 ml of beetroot juice (high nitrate dietary supplement)

Treatment:

Dietary Supplement: Beetroot juice

Placebo

Placebo Comparator group

Description:

Placebo drink looks and tastes like the beetroot juice but has the nitrate removed from the juice.

Treatment:

Dietary Supplement: Placebo drink