Abstract

Cumulative sleep deprivation commonly results from operational demands involving transmeridian flights, night missions, and sustained operations. Our recent studies of both acute total sleep deprivation (TSD) and cumulative partial sleep deprivation (PSD) demonstrate that as sleep loss escalates, the temporal profiles of declining alertness and performance degradation reflect the influence of both the circadian pacemaker and the homeostatic sleep drive, but the interaction between the two processes is nonlinear in ways not predicted by current models of alertness. We propose to conduct an experiment simulating deployments that produce severe TSD or cumulative PSD in order to: (1) specify the contributions (and interactions) of circadian and homeostatic processes to neurobehavioral functions during sleep loss; (2) evaluate the effectiveness of caffeine as a countermeasure to the neurobehavioral deficits produced by sleep deprivation; and (3) assess the role of recovery sleep duration in normalization of waking functions following varying degrees of sleep deprivation.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000040-37
Application #
6244494
Study Section
Project Start
1997-03-17
Project End
1998-02-28
Budget Start
1996-10-01
Budget End
1997-09-30
Support Year
37
Fiscal Year
1997
Total Cost
Indirect Cost

  Institution

Name
University of Pennsylvania
Department
Type
DUNS #
042250712
City
Philadelphia
State
PA
Country
United States
Zip Code
19104

  Publications

Khalili, Mandana; Shuhart, Margaret C; Lombardero, Manuel et al. (2018) Relationship Between Metabolic Syndrome, Alanine Aminotransferase Levels, and Liver Disease Severity in a Multiethnic North American Cohort With Chronic Hepatitis B. Diabetes Care 41:1251-1259
Thomas, Bernadette; Matsushita, Kunihiro; Abate, Kalkidan Hassen et al. (2017) Global Cardiovascular and Renal Outcomes of Reduced GFR. J Am Soc Nephrol 28:2167-2179
Ojiro, Keisuke; Qu, Xiaowang; Cho, Hyosun et al. (2017) Modulation of Hepatitis C Virus-Specific CD8 Effector T-Cell Function with Antiviral Effect in Infectious Hepatitis C Virus Coculture Model. J Virol 91:
Di Bisceglie, A M; Lombardero, M; Teckman, J et al. (2017) Determination of hepatitis B phenotype using biochemical and serological markers. J Viral Hepat 24:320-329
Lok, A S; Ganova-Raeva, L; Cloonan, Y et al. (2017) Prevalence of hepatitis B antiviral drug resistance variants in North American patients with chronic hepatitis B not receiving antiviral treatment. J Viral Hepat 24:1032-1042
Leonard, Mary B; Shults, Justine; Long, Jin et al. (2016) Effect of Low-Magnitude Mechanical Stimuli on Bone Density and Structure in Pediatric Crohn's Disease: A Randomized Placebo-Controlled Trial. J Bone Miner Res 31:1177-88
Ricordi, Camillo; Goldstein, Julia S; Balamurugan, A N et al. (2016) National Institutes of Health-Sponsored Clinical Islet Transplantation Consortium Phase 3 Trial: Manufacture of a Complex Cellular Product at Eight Processing Facilities. Diabetes 65:3418-3428
Evon, Donna M; Wahed, Abdus S; Johnson, Geoffrey et al. (2016) Fatigue in Patients with Chronic Hepatitis B Living in North America: Results from the Hepatitis B Research Network (HBRN). Dig Dis Sci 61:1186-96
Park, Jang-June; Wong, David K; Wahed, Abdus S et al. (2016) Hepatitis B Virus--Specific and Global T-Cell Dysfunction in Chronic Hepatitis B. Gastroenterology 150:684-695.e5
Hering, Bernhard J; Clarke, William R; Bridges, Nancy D et al. (2016) Phase 3 Trial of Transplantation of Human Islets in Type 1 Diabetes Complicated by Severe Hypoglycemia. Diabetes Care 39:1230-40

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