Regulation of Postprandial Nitric Oxide Bioavailability and Vascular Function By Dairy Milk

Prediabetes Clinical Trial

Official title: Regulation of Postprandial Nitric Oxide Bioavailability and Vascular Function By Dairy Milk

Status Completed

Clinical Trial Summary

Cardiovascular disease (CVD) is the leading cause of death in the United States. Short-term increases in blood sugar, or postprandial hyperglycemia (PPH), affect blood vessel function and increase the risk of CVD. Greater intakes of dairy foods have been associated with a lower risk of CVD, but whether these effects occur directly or indirectly by displacing foods in the diet that might increase CVD risk is unclear. The health benefits of dairy on heart health are at least partly attributed to its ability to limit PPH and resulting PPH-mediated responses leading to vascular dysfunction. This provides rationale to further investigate dairy as a dietary strategy to reduce PPH and risk for CVD. The objective of this study is to define the extent to which dairy milk, and its whey and casein protein fractions, protect against postprandial vascular dysfunction by reducing oxidative stress responses that limit nitric oxide bioavailability to the vascular endothelium in adults with prediabetes.

Clinical Trial Description

This study consists of four, 3-hour postprandial trials in response to consuming the following dietary treatments: 1. oral glucose challenge, 2. oral glucose challenge in combination with non-fat milk, 3. oral glucose challenge in combination with whey protein isolate, and 4. oral glucose challenge in combination with sodium caseinate. For three days preceding each trial, participants will be provided all meals to standardize physiologic responses to test meals. On each trial day, vascular function will be assessed and blood samples collected prior to and at 30 minute intervals for 3 hours following test meal ingestion. ;

Related Conditions & MeSH terms

• Glucose Intolerance
• Prediabetes
• Prediabetic State

• NCT number: NCT02482675
• Study type: Interventional
• Source: Ohio State University
• Status: Completed
• Phase: N/A
• Start date: June 2015
• Completion date: February 2018