Abstract:
INTRODUCTION:REM sleep behavior disorder (RBD) is considered a prodromal phase of α-synucleinopathy like Parkinson disease (PD). PD is characterized by a progressive decline of dopamine (DA) in the striatum. Here we report the surprising increase in DA transporter density over successive years in an RBD patient treated with melatonin. CASE PRESENTATION:A then 72-year-old man was clinically suspected to suffer from PD in 2011. DA transporter scintigraphy (DaTSCAN) revealed reduced DA transporter density, and the patient was diagnosed with developing PD. Because of outacting dreams every night (speaking, yelling, kicking, pushing) he was referred to our clinic. Video-assisted polysomnography (PSG) confirmed the diagnosis of RBD in 2012. Management and Outcome: Melatonin treatment (2 mg slow release/day; 30 min prior to habitual bedtime; always at the same clock time) was initiated after PSG and continued. After 6 months of gradual improvement, clinical signs of RBD were absent. Control PSG in 2014 confirmed normalized REM sleep with atonia. Furthermore, no clinical sign of neurodegeneration occurred ever since. Additional DaTSCANs were performed in 2013 and 2015. Whereas the 2011 scan prior to melatonin treatment bore clear signs of PD, the 2013 scan was considered borderline and the 2015 scan without any sign of PD. DISCUSSION:To the best of our knowledge, DA transporter density increase over time has never been reported in a single subject, neither healthy aged individuals nor patients suffering from RBD or PD. We interpret these results as a possible neuroprotective role for melatonin in synucleinopathy.
journal_name
Neuropsychobiologyjournal_title
Neuropsychobiologyauthors
Kunz D,Bes Fdoi
10.1159/000488893subject
Has Abstractpub_date
2017-01-01 00:00:00pages
100-104issue
2eissn
0302-282Xissn
1423-0224pii
000488893journal_volume
76pub_type
杂志文章abstract::Human personality traits, which are substantially heritable, may be modulated by monoamine neurotransmitters. It has been demonstrated that the catechol-O-methyltransferase (COMT) Val158Met genetic polymorphism, a functional polymorphism that may affect monoamine metabolism, is possibly associated with specific person...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000079107
更新日期:2004-01-01 00:00:00
abstract::Clinical observations have suggested that lithium may exert adverse effects on memory. The difficulty in achieving empirical consensus regarding this issue has reflected several methodological problems: diversity of research designs, heterogeneous samples, lack of control groups and the possible confounding of memory ...
journal_title:Neuropsychobiology
pub_type: 杂志文章,评审
doi:10.1159/000118904
更新日期:1992-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000118086
更新日期:1984-01-01 00:00:00
abstract::Despite being the most widely consumed psychoactive substance in the world, there is considerable confusion regarding the effects of caffeine. This study examined objective indices of performance, and self-reported mood, headache, and sleep in 36 healthy male and female habitual caffeine consumers exposed to a pattern...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000026514
更新日期:1998-01-01 00:00:00
abstract::In contrast to the single-channel dimensional complexity, the global dimensional complexity is calculated from a multichannel EEG. The intention with the method is to measure the spatial distribution of information processing in the brain. The method seems to be of interest in psychopharmacological research, but the i...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119171
更新日期:1995-01-01 00:00:00
abstract::A common polymorphism in the alpha1-antichymotrypsin (ACT) gene is associated with Alzheimer's disease. ACT is also a trophic factor in the hippocampal neurons. In order to examine if the ACT gene plays a role in the pathogenesis of schizophrenic disorders, patients (n = 175) and control subjects (n = 114) were genoty...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000026600
更新日期:1999-01-01 00:00:00
abstract::Plasma levels of free and conjugated 3,4-dihydroxyphenylethyleneglycol (DOPEG), the main deaminated metabolite of norepinephrine, were assayed in 48 depressed patients before initiating a treatment with either maprotiline, an inhibitor of norepinephrine reuptake, or indalpine, a specific inhibitor of serotonin reuptak...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118243
更新日期:1986-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章,评审
doi:10.1159/000362838
更新日期:2014-01-01 00:00:00
abstract::Failure to gain weight during withdrawal from chronic regimens of dependence-producing drugs is observed in laboratory rats. Withdrawal from the benzodiazepine anxiolytic agent diazepam, whether induced by cessation of treatment or precipitated by administration of the specific benzodiazepine antagonist Ro-15,1788, is...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118291
更新日期:1986-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118408
更新日期:1987-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117990
更新日期:1983-01-01 00:00:00
abstract::The effects of zolpidem or zaleplon on sleep architecture, respiratory patterns and performance were assessed at a simulated altitude of 4,000 m. Twelve male healthy subjects spent 4 nights in a decompression chamber, 1 at sea level (baseline), 3 at 4,000 m to test zolpidem (10 mg), zaleplon (10 mg) and placebo, given...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-01-01 00:00:00
abstract::10 long-term schizophrenic patients with tardive dyskinesia were studied over 14 weeks and maintained on their usual neuroleptic medications while anticholinergic antiparkinson drugs were employed and then discontinued, and the cycle then repeated. Discontinuation of anticholinergic medications resulted in improvement...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117742
更新日期:1980-01-01 00:00:00
abstract::Behavioral abnormalities, jumping reaction, increase in spontaneous activity abnormal violence, and lethargy were observed in long-term ultraviolet A (UVA)-irradiated hairy male Crj:CD-1 mice. The learning ability of 6- and 12-months UVA-irradiated mice was significantly reduced compared to un-irradiated age-matched m...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119274
更新日期:1996-01-01 00:00:00
abstract::Abnormal anterior pituitary responsiveness to acute administration of thyrotropin-releasing hormone was investigated in 8 patients, 6 women and 2 men, with primary affective disorders in a depressive phase and in 2 women with schizoaffective disorders. Thyrotropin-releasing hormone, 500 micrograms i.v., induced a rise...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117908
更新日期:1982-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118982
更新日期:1993-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118606
更新日期:1989-01-01 00:00:00
abstract::Time trends and periodic cycles in REM sleep eye movements were examined in 6 functional and 6 mongoloid adolescent retardates. Both groups of subjects showed approximately equal percentages of linear trends, quadratic trends, linear and quadratic trends, and absence of trend. The eye movement time-series were subject...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117524
更新日期:1976-01-01 00:00:00
abstract::We agree with the conclusions of a recent article in this journal [James, Neuropsychobiology 1994;30:124-125] that studies on the psychoactive effects of caffeine need to take into account the possibility that the results obtained might represent merely the reversal of deleterious effects of caffeine deprivation rathe...
journal_title:Neuropsychobiology
pub_type: 杂志文章,评审
doi:10.1159/000119192
更新日期:1995-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118234
更新日期:1986-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000075338
更新日期:2004-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000209859
更新日期:2009-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000353613
更新日期:2013-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000026528
更新日期:1998-10-01 00:00:00
abstract::Both thyrotropin-releasing hormone (TRH) and amphetamine antagonize pentobarbital. They are more effective in the day than at night. This is true for TRH even when the dose of pentobarbital is increased at night to prolong sedation. Under this condition the day-night difference is lost for amphetamine. Both substances...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117484
更新日期:1975-01-01 00:00:00
abstract::All-night sleep of 5 healthy male subjects was scored on the basis of EEG (paper records), EMG and EOG into the stages of wakefulness, REM sleep and slow sleep stages 1-4 according to Rechtschaffen and Kales. Spectral analysis for 8 EEG channels was then performed and spectral parameters (total power and coherence for...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118067
更新日期:1984-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000071212
更新日期:2003-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119182
更新日期:1995-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118568
更新日期:1989-01-01 00:00:00
abstract::28 cases of suicide committed in a Swedish population subjected to repeated psychiatric investigations are described. Two groups of controls were selected from the same population: sex- and age-matched living persons (normal group) and sex-matched persons who had died from organic disease at ages corresponding to thos...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117666
更新日期:1979-01-01 00:00:00