Abstract

This research study will look at 24-hour (circadian) rhythms that are """"""""free-running."""""""" That is, they are not synthesized to the 24-hour day. Circadian rhythms are generated by an area of the brain, sometimes called the """"""""circadian clock."""""""" These rhythms include body temperature, sleepiness and the secretion of certain hormones. The circadian clock is ordinarily synchronized to the light-dark cycle; this is probably the reason that free-running (non 24-hour) circadian rhythms occur commonly in people who are totally blind. Our recent studies have shown melatonin's ability to entrain free-running rhythms in blind people to a 24 hour day. The goals of this study are: A) to examine what dose is necessary to prevent circadian rhythm from free-running once it has been entrained with melatonin treatment; and B) to look at the relationship of each individual circadian rhythm to the dose of melatonin necessary to entrain to a 24 hour day.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
2M01RR000334-34
Application #
6411839
Study Section
Special Emphasis Panel (ZRR1)
Project Start
1976-12-01
Project End
2004-11-30
Budget Start
Budget End
Support Year
34
Fiscal Year
2000
Total Cost
Indirect Cost

  Institution

Name
Oregon Health and Science University
Department
Type
DUNS #
009584210
City
Portland
State
OR
Country
United States
Zip Code
97239

  Publications

Brenowitz, Willa D; Keene, C Dirk; Hawes, Stephen E et al. (2017) Alzheimer's disease neuropathologic change, Lewy body disease, and vascular brain injury in clinic- and community-based samples. Neurobiol Aging 53:83-92
Brenowitz, Willa D; Hubbard, Rebecca A; Keene, C Dirk et al. (2017) Mixed neuropathologies and estimated rates of clinical progression in a large autopsy sample. Alzheimers Dement 13:654-662
Bergstrom, Colin P; Ruffell, Brian; Ho, Christine M T et al. (2017) Docetaxel and mitoxantrone before radical prostatectomy in men with high-risk prostate cancer: 10-year follow-up and immune correlates. Anticancer Drugs 28:120-126
Narayanan, Kumar; Uy-Evanado, Audrey; Teodorescu, Carmen et al. (2016) Mitral valve prolapse and sudden cardiac arrest in the community. Heart Rhythm 13:498-503
Abner, Erin L; Nelson, Peter T; Kryscio, Richard J et al. (2016) Diabetes is associated with cerebrovascular but not Alzheimer's disease neuropathology. Alzheimers Dement 12:882-9
Sylwester, Andrew; Nambiar, Kate Z; Caserta, Stefano et al. (2016) A new perspective of the structural complexity of HCMV-specific T-cell responses. Mech Ageing Dev 158:14-22
Elliot, Diane; Garg, Bharti; Kuehl, Kerry et al. (2015) Why Are Women Law Enforcement Officers More Burned-Out and What Might Help Them? Occup Med Health Aff 3:
Samuels, Mary H (2014) Psychiatric and cognitive manifestations of hypothyroidism. Curr Opin Endocrinol Diabetes Obes 21:377-83
Redig, Jennifer K; Fouad, Gameil T; Babcock, Darcie et al. (2014) Allelic Interaction between CRELD1 and VEGFA in the Pathogenesis of Cardiac Atrioventricular Septal Defects. AIMS Genet 1:1-19
Lee, David S H; Markwardt, Sheila; Goeres, Leah et al. (2014) Statins and physical activity in older men: the osteoporotic fractures in men study. JAMA Intern Med 174:1263-70

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