Research Topics
| R L SackSummaryAffiliation: Oregon Health and Science University Country: USA Publications
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Detail Information
Publications
Host melatonin secretion is a timing signal for the release of W. bancrofti microfilaria into the circulationRobert L Sack
Psychiatry, Oregon Health and Sciences University, 3181 S W Sam Jackson Park Road, Portland, OR 97239 3098, USA
Med Hypotheses 73:147-9. 2009..It follows that exogenous melatonin administration during the day would also trigger release of microfilaria in the blood and could be used as a provocative diagnostic test for filariasis...
The pathophysiology of jet lagRobert L Sack
Sleep Disorders Medicine Program, Department of Psychiatry, Oregon Health and Sciences University, 3181 S W Sam Jackson Park Road, Portland, OR 97239 3098, USA
Travel Med Infect Dis 7:102-10. 2009..Clinical field trials that have tested the application of circadian rhythm based interventions are then reviewed...
Entrainment of free-running circadian rhythms by melatonin in blind peopleR L Sack
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201, USA
N Engl J Med 343:1070-7. 2000..We investigated whether a daily dose of melatonin could entrain their circadian rhythms to a normal 24-hour cycle...
Use of melatonin for sleep and circadian rhythm disordersR L Sack
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201, USA
Ann Med 30:115-21. 1998..Melatonin has not been proven safe by the usual clinical trial criteria, but to date no catastrophes have been related to its use. Also, there is little information about the safety and efficacy of chronic administration...
Capturing the circadian rhythms of free-running blind people with 0.5 mg melatoninA J Lewy
Sleep and Mood Disorders Laboratory, Department of Psychiatry, School of Medicine, Oregon Health Sciences University, 3181 S W Sam Jackson Park Road, Portland, OR 97201 3098, USA
Brain Res 918:96-100. 2001..5 mg initially capture free-running rhythms? Following withdrawal of the stepped-down 0.5 mg dose and consequent release into a free-run, the same three individuals were given 0.5 mg of melatonin de novo. All entrained within a few weeks...
The role of melatonin and circadian phase in age-related sleep-maintenance insomnia: assessment in a clinical trial of melatonin replacementR J Hughes
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland, USA
Sleep 21:52-68. 1998..Total sleep time and sleep efficiency were correlated with the timing of the endogenous melatonin rhythm, and particularly with the phase-relationship between habitual bedtime and the phase of the circadian timing system...
Melatonin treatment of winter depression: a pilot studyA J Lewy
Department of Psychiatry, Oregon Health Sciences University, Portland 97201 3098, USA
Psychiatry Res 77:57-61. 1998..If these findings are replicated in a larger sample with documentation of expected phase shifts, the phase shift hypothesis will be substantially supported...
Effects of aging on the intrinsic circadian period of totally blind humansA R Kendall
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201, USA
J Biol Rhythms 16:87-95. 2001..The results do not support the commonly held view that tau shortens during human aging. On the contrary, tau appears to slightly, but significantly, lengthen during at least 1 decade in midlife...
Sleep-promoting effects of melatonin: at what dose, in whom, under what conditions, and by what mechanisms?R L Sack
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland, USA
Sleep 20:908-15. 1997....
Non-24-hour sleep-wake syndrome in a sighted man: circadian rhythm studies and efficacy of melatonin treatmentA J McArthur
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201, USA
Sleep 19:544-53. 1996..1 hours, albeit at a somewhat delayed phase. A 14-month follow-up interview revealed that the patient continued to take melatonin daily, and his sleep-wake schedule was stable to a near 24-hour schedule...
A comparison of sleep detection by wrist actigraphy, behavioral response, and polysomnographyM L Blood
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201, USA
Sleep 20:388-95. 1997..It is concluded that BRM has some important advantages as a simple, minimally invasive method for monitoring sleep...
Sleep propensity free-runs with the temperature, melatonin and cortisol rhythms in a totally blind personH Nakagawa
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201
Sleep 15:330-6. 1992....
Melatonin rhythms in night shift workersR L Sack
Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland 97201
Sleep 15:434-41. 1992..Thus, the sleep times selected by night shift workers may not be well-synchronized to their melatonin rhythm, assumed to mark the phase of their underlying circadian pacemaker...
Pretreatment circadian period in free-running blind people may predict the phase angle of entrainment to melatoninA J Lewy
Sleep and Mood Disorders Laboratory, Department of Psychiatry, School of Medicine, Oregon Health Sciences University, Portland, OR 97201 3098, USA
Neurosci Lett 313:158-60. 2001..Comp. Physiol., 106 (1976) 291-331]...
Low, but not high, doses of melatonin entrained a free-running blind person with a long circadian periodAlfred J Lewy
Department of Psychiatry, Oregon Health and Science University, Portland, USA
Chronobiol Int 19:649-58. 2002..We now find that this person can be entrained to 0.5 mg of melatonin, but not to 20 mg. These results are consistent with the idea that too much melatonin may spill over onto the wrong zone of the melatonin phase-response curve...
Zeitgeber hierarchy in humans: resetting the circadian phase positions of blind people using melatoninAlfred J Lewy
Sleep and Mood Disorders Laboratory, Department of Psychiatry, Oregon Health and Science University, Portland, Oregon, USA
Chronobiol Int 20:837-52. 2003....
Relative coordination to unknown "weak zeitgebers" in free-running blind individualsJonathan S Emens
Sleep and Mood Disorders Laboratory, Department of Psychiatry, Oregon Health and Science University, Portland 97239, USA
J Biol Rhythms 20:159-67. 2005..Sighted individuals may also be affected by such weak zeitgebers, which may be obscured by the stronger light/dark cycle...
Circadian rhythm sleep disorders: part II, advanced sleep phase disorder, delayed sleep phase disorder, free-running disorder, and irregular sleep-wake rhythm. An American Academy of Sleep Medicine reviewRobert L Sack
Department of Psychiatry, Oregon Health Sciences University, Portland, OR, USA
Sleep 30:1484-501. 2007..We herein report on the accumulated evidence regarding the evaluation and treatment of Advamced Sleep Phase Disorder (ASPD), Delayed Sleep Phase Disorder (DSPD), Free-Running Disorder (FRD) and Irregular Sleep-Wake Rhythm ISWR)...
Assessment and management of insomniaCarlos H Schenck
Department of Psychiatry, Minnesota Regional Sleep Disorders Center, Hennepin County Medical Center and University of Minnesota Medical School, Minneapolis 55415, USA
JAMA 289:2475-9. 2003
