Abstract:
BACKGROUND:Rasagiline and selegiline are classified as monoamine oxidase B (MAO-B) inhibitors. The present investigation deals with time-dependent electrical frequency changes (electropharmacograms) induced by these, as well as by aminoindan, the major metabolite of rasagiline. METHOD:Adult rats (day-night converted, >5 months old) were fitted with 4 bipolar concentric steel electrodes connected to a small base plate, which was positioned stereotactically for insertion of the electrodes into the frontal cortex, hippocampus, striatum and reticular formation. The plate carried a small plug to receive a telemetric device during the experimental session. Changes in field potentials were recorded during a pre-drug reference period of 45 min, followed by intraperitoneal administration and 5 h of recording thereafter. Data were transmitted wirelessly for frequency analysis. Data from 10 animals treated within a crossover design were averaged. RESULTS:A dose of 0.25 mg/kg i.p. rasagiline produced statistically significant decreases in spectral alpha2 and beta1 power. Higher dosages showed a linear enhancement of this effect. A similar pattern was obtained after administration of aminoindan (2-10 mg/kg), but of shorter duration. Selegiline produced a similar pattern only for the first 1-2 h. After this, statistically significant increases in delta and theta power were observed. CONCLUSION:Despite the feature of MAO-B inhibition in both drugs and its reflection in the initial changes of the frequency pattern during the first hour, the pharmacological action of selegiline during the following hours differs profoundly from that of rasagiline, presumably due to the toxicity of its major metabolites methamphetamine and amphetamine.
journal_name
Neuropsychobiologyjournal_title
Neuropsychobiologyauthors
Dimpfel W,Hoffmann JAdoi
10.1159/000319947subject
Has Abstractpub_date
2010-01-01 00:00:00pages
213-20issue
4eissn
0302-282Xissn
1423-0224pii
000319947journal_volume
62pub_type
杂志文章abstract:BACKGROUND:The 5-hydroxytryptamine (5-HT) neurotransmitter system and lateral habenula (LHb) are involved in the regulation of depression, while the mechanisms remain to be clarified. OBJECTIVES:The effects and possible mecha-nism underlying activation or blockade of 5-HT4 receptors (5-HT4Rs) in the LHb in depression ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000508680
更新日期:2020-07-14 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章,随机对照试验
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更新日期:2009-01-01 00:00:00
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abstract::To clarify the circadian aspects of delayed sleep phase syndrome (DSPS) in 4 patients with DSPS, we recorded polysomnograms and rectal temperature before and after chronotherapy. The time interval (2.7 h) between sleep onset and rectal temperature minimum before chronotherapy was shorter than the time interval after c...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118495
更新日期:1988-01-01 00:00:00
abstract::Electrovestibulography (EVestG) recordings have been previously applied toward classifying and/or measuring the severity of several neurological disorders including depression with and without anxiety. This study's objectives were to: (1) extract EVestG features representing physiological differences of healthy women ...
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journal_title:Neuropsychobiology
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doi:10.1159/000337740
更新日期:2012-01-01 00:00:00
abstract::The soporific effect of the neuroactive steroid pregnanolone, a metabolite of progesterone, and its relationship with plasma concentrations was assessed in 18 young, healthy, male volunteers for 2 h after administration of a single dose of pregnanolone prepared in two different formulations. Sedation was measured as s...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000119300
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND/AIMS/METHODS:Electroconvulsive therapy (ECT) is still one of the most potent treatments in the acute phase of major depressive disorder (MDD) and particularly applied in patients considered treatment resistant. However, despite the frequent and widespread use of ECT for >70 years, the exact neurobiological m...
journal_title:Neuropsychobiology
pub_type: 杂志文章,评审
doi:10.1159/000505553
更新日期:2020-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119355
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abstract::In the Lundby Study, all mental illnesses, treated as well as untreated, that occurred during a 25-year period in a geographically defined Swedish general population sample were evaluated. All forms of psychiatric services used by the population during the same period were registered. The present study investigates th...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117990
更新日期:1983-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000234814
更新日期:2009-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000117952
更新日期:1983-01-01 00:00:00
abstract::Neural-network pattern classifiers were used to study the effects of long half-life flurazepam (30 mg) and quazepam (15 mg), and short half-life triazolam (0.5 mg) on non-REM sleep. We measured the magnitude of effect, time course, and EEG spectral signature of the three benzodiazepines as a function of third-of-night...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118444
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVE:C-reactive protein (CRP), a marker of underlying low-grade inflammation, has been associated with the pathophysiology of bipolar disorder. Additionally, bipolar disorder may be accompanied by functional or structural cerebral alterations. We attempted to discover whether serum high-sensitivity CRP (hs-CRP) le...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000353613
更新日期:2013-01-01 00:00:00
abstract::Carnitine is essential for mitochondrial energy production. Disturbance in mitochondrial function may contribute to or cause the fatigue seen in chronic fatigue syndrome (CFS) patients. One previous investigation has reported decreased acylcarnitine levels in 38 CFS patients. We investigated 35 CFS patients (27 female...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119226
更新日期:1995-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000087557
更新日期:2005-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000119291
更新日期:1996-01-01 00:00:00
abstract::To clarify the role of the serotonergic system in limbic and thalamic epileptic activity, we examined the effects of 5-hydroxytryptophan (5-HTP, 20 and 40 mg/kg) on fully kindled seizures from the hippocampus and lateral geniculate nucleus. The intraperitoneal administration of 20 mg/kg 5-HTP exerted no anticonvulsant...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118813
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,随机对照试验
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更新日期:2004-01-01 00:00:00
abstract::Individuals differ in hypnotizability. Information on hypnotizability-related EEG characteristics is controversial and incomplete, particularly on intracerebral source localization and EEG dimensionality. 19-channel, eyes-closed resting EEGs from right-handed, healthy, 8 high- and 4 low-hynotizable subjects (age: 26.7...
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pub_type: 杂志文章
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更新日期:2001-01-01 00:00:00
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journal_title:Neuropsychobiology
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更新日期:2010-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000117865
更新日期:1981-01-01 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
abstract::Two independent samples of psychiatric outpatients (n = 52 and 60) with blood type A or O completed the Brief Symptom Inventory, an abbreviated version of the SCL-90. In both samples patients with blood type A scored significantly higher than those with type O on the 'Obsessive-Compulsive' and 'Psychoticism' factors. ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118295
更新日期:1986-01-01 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::7 women and 3 men with anorexia nervosa were tested with thyrotropin-releasing hormone (TRH) and luteinizing hormone-follicle stimulating hormone-releasing hormone (LH-RH) and the growth hormone (GH), prolactin (PRL), gonadotropin (FSH-LH) and thyrotropin (TSH) responsiveness of their anterior pituitaries (AP) to the ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117854
更新日期:1981-01-01 00:00:00
abstract:BACKGROUND:The failure to inhibit pleasurable but inappropriate urges is associated with frontal lobe pathology and has been suggested as a possible cause of pedophilic behavior. However, imaging and neuropsychological findings about frontal pathology in pedophilia are heterogeneous. In our study we therefore address i...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000355295
更新日期:2013-01-01 00:00:00
abstract::This paper reports a replication study of a four-group cluster-analytic typology of depressed patients. Several hierarchial agglomerative clustering procedures were applied on the original patient sample using a slightly reduced variable pool. The best replication obtained used Ward's error sum of squares method and w...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117595
更新日期:1977-01-01 00:00:00
abstract:OBJECTIVE:Patients with bulimia nervosa (BN) are reported to have decreased postprandial levels of cholecystokinin (CCK) and peptide YY (PYY). Fatty nutrients are the most powerful stimulus for releasing these peptides. Cholestyramine is an anion exchanger which adsorbs bile salts and reduces the digestion of lipids, a...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000368160
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Psychosis spectrum disorders, especially schizophrenia, have been linked to disturbed dopaminergic activity in the brain. Plasma homovanillic acid (pHVA) levels partly represent dopaminergic metabolism in the central nervous system. In the present study associations between (changes in) pHVA levels, symptom ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000431095
更新日期:2015-01-01 00:00:00