Immune Status After Being on Call for 24 Hrs
ConditionSleep Deprivation
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorUniversity of Chicago
About this trial
Sleep deprivation is a prevalent problem in modern societies. Sleep deprivation can cause hormonal changes, such as an increase in cortisol, as well as inflammation. Animal studies have shown an increase in inflammatory cytokine production following sleep deprivation. Additionally, humans experiencing sleep deprivation may experience a decrease in natural killer cells and lymphocytes.
Physicians, particularly those in surgical specialties, are often subjected to sleep deprivation as part of their medical residency training. This study hypothesizes that after 24-hour shifts, there is an increase in inflammatory response and impairment of the immune response against unspecific activation. This proposal aims to provide insight into the impact of sleep deprivation on the immune system of surgery residents by characterizing the phenotype and function of immune cells, as well as their correlation with biometric data.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Healthy subjects
Surgery residents in a 24-hour shift rotation
Gender of subjects: Males and females
Age of subjects: 18 years old and older
Disqualifiers
Unwilling/unable to sign informed consent
Vulnerable Subjects/Subject Capacity to provide consent
Trial population
General Surgery residents, on during 24-hour shifts
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
Blood Sample Collection
Diagnostic testTo characterize the phenotype and function of immune cells in surgery residents before and after a 24-hour shift, and before and after a month of being "on call". Along with to investigate the relationship between sleep deprivation, physical activity, and different immune responses.
Actigraph (GT9X-BT) Monitor
DeviceParticipants will be asked to wear their monitor every day for a week. The monitor will collect their step count, sleep and heart rate automatically. Participants will return their monitor at visit 5 (day 30) of the study.
Treatment groups
60 Participants
are divided into 1 treatment groupGroup A: General Surgery Residents2 interventions
Trial outcomes
Primary outcomes
1
Characterization of the phenotype and function of immune cells using flow cytometry
Specifically, T cells, B cells, dendritic cells, macrophages, and natural killer cells will be identified and analyzed. Memory cells, co-inhibitor markers, and regulatory markers will also be evaluated. The function will be analyzed based on the intracellular expression of effector molecules and cytokines after unspecific activation with CD3-CD28 beads.
Time frame
24 hoursSecondary outcomes
1
Analyze the biometric data and correlate it with changes in sleep deprivation
To examine the associations, participants will be using an activity and sleep monitor.
Time frame
One week before rotation and the last week of rotation2
Analyze the biometric data and correlate it with changes in the immune response
To examine the associations, participants will be using an activity and sleep monitor.
Time frame
One week before rotation and the last week of rotation3
Analyze the biometric data and correlate it with changes in physical activity
To examine the associations, participants will be using an activity and sleep monitor.
Time frame
One week before rotation and the last week of rotationSponsors and contacts
Click on the lead sponsor to view all of their trials.
Source ClinicalTrials.gov