NCT00721019

Sleep Loss and Glucose Metabolism in People With Family History of Type 2 Diabetes.

Sleep, Energy Metabolism and Diabetes Risk.

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 11 (actual)
• Sponsor: University of Chicago · Academic / Other
• Sex: All
• Age: 21 Years – 40 Years
• Healthy volunteers: Accepted

Summary

The use of sugar and starch-like foods for energy (carbohydrate metabolism) changes when people sleep. However, it is still not known if differences in the amount of nighttime sleep have an effect on the carbohydrate metabolism of people who have a relative with type 2 diabetes (parent, sibling, or grandparent). This study is being done to test the hypothesis that the carbohydrate metabolism of people who have a history of type 2 diabetes in their family will be different after they have slept short hours for 10 days in comparison to when they have slept longer hours for 10 days.

Detailed description

Study participants will complete two 10-day inpatient stays in the sleep laboratory of the University of Chicago Clinical Resource Center scheduled at least 4 weeks apart. Bedtime duration will be set at 5 hours per night during one of these stays and 8.5 hours per night during the other. No daytime naps will be allowed. Study participants will be served regular daily meals including breakfast, lunch, dinner, and a bedtime snack. On weekdays all participants will engage in simulated "office work" while in the sleep laboratory. During the rest of the time participants will maintain their usual indoor and outdoor activities as much as possible within the limits of the University of Chicago campus. During the last two days of each inpatient stay in the laboratory, participants will undergo two different tests. The first test will determine how much insulin does their body produce in response to an intravenous glucose infusion lasting several hours. The second test will determine how effective is the action of the sugar-processing hormone, insulin, in their body when it is infused intravenously together with glucose over a period of several hours.

Conditions

• Sleep
• Sleep Deprivation
• Insulin Resistance
• Type 2 Diabetes

Interventions

Type	Name	Description
OTHER	5-hour bedtime	10 days with sleep restricted only to a 5-hour bedtime period at night
OTHER	8.5-hour bedtimes	10 days with sleep allowed only during a 8.5-hour period at night

Timeline

• Start date: 2008-07-01
• Primary completion: 2012-03-01
• Completion: 2012-03-01
• First posted: 2008-07-23
• Last updated: 2013-09-05

Locations

1 site across 1 country: United States