“The Shift Worker’s Microbiome”

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Study Overview

We are looking for healthy males, age 40-59 years old, non-smoking un-medicated who work the "shift-work" schedule (>3 shifts per month outside 7 am-6 pm for the past 10 or more years & own a smartphone which installs the remote sensing applications. or "day workers" who work 7 am-6 pm for 10 or more years, non-smoking, males age 40-59 years old & own a smartphone which installs the remote sensing applications. Individuals who work night shifts or rotating shift schedules are more likely to develop cardiovascular disease (stroke and heart attack) and diabetes (high blood sugar). This is thought to be related to the long-term disruption of these workers’ body clocks associated with changing or nighttime schedules.

Study Description

This study will consist of a screening visit followed by 13 visits to the Center for Human Phenomic. Your participation will take 18-22 weeks. The active experimental phase will involve two 48-hour visits during which the same procedures will be repeated (Visits 5, 6, 7 and Visits 9, 10, 11). There will be both inpatient and outpatient visits. You will be required to stay overnight for 2, 48 hour periods. You will receive $900. for completing the study.

Additional Information:

Study Coordinator Contact Lavenia Banas, RN E-Mail: banas@pennmedicine.upenn.edu

  • Study Identifier: 826117

Recruitment Status


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