homovanillic acid/fatigue

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Plasma and cerebrospinal fluid monoamine metabolism in patients with chronic fatigue syndrome: preliminary findings.

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The syndrome of chronic fatigue, feverishness, diffuse pains, and other constitutional complaints, often precipitated by an acute infectious illness and aggravated by physical and emotional stressors, has a lengthy history in the medical literature. The Centers for Disease Control (CDC) recently

Effects of metabolic perturbation on plasma homovanillic acid in schizophrenia. Relationship to prefrontal cortex volume.

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OBJECTIVE Several recent hypotheses suggest that deficits in normal prefrontal cortical inhibition of subcortical dopamine activity result in dysregulated dopamine function and may contribute to the pathophysiology of schizophrenia. These effects seem to be more consistently demonstrable during

Recovery from fatigue: changes in local brain 2-[18F]fluoro-2-deoxy-D-glucose utilization measured by autoradiography and in brain monoamine levels of rat.

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We recently established an animal model of fatigue in which rats were kept in a cage filled with water to a height of 1.5 cm for 5 days. In this way, after the fatigue session, they were returned to their home cage. Rats resting for 15 min or 2 h showed reduced 2-[18F]fluoro-2-deoxy-D-glucose uptake

Bupropion treatment of fluoxetine-resistant chronic fatigue syndrome.

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Chronic fatigue syndrome (CFS) includes many symptoms of major depression. For this reason, many antidepressants have been used to treat the symptoms of this disorder. Among the more recently released antidepressants are fluoxetine and bupropion. In this open study, nine CFS patients who either

Tyrosine metabolism during interferon-alpha administration: association with fatigue and CSF dopamine concentrations.

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Chronic exposure to interferon (IFN)-alpha, an innate immune cytokine, produces high rates of behavioral disturbances, including depression and fatigue. These effects may be mediated by the actions of IFN-alpha on dopamine (DA) metabolism in the basal ganglia. Diminished conversion of phenylalanine

Establishment and assessment of a rat model of fatigue.

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To establish an animal model of fatigue, we kept rats in a cage filled with water to a height of 1.5 cm. We selected a weight-loaded forced swimming test for evaluation of the extent of fatigue. Animals kept in the wet cage for 5 days showed a reduction in 2-[18F]fluoro-2-deoxy-D-glucose uptake into

Infantile-onset paroxysmal dystonia: a diagnostic dilemma.

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A 4-year-old boy presented with a history of paroxysmal dystonic posturing since birth. Episodes were triggered by stress, fatigue, and cold. Sleep, for as short as 1 minute, resulted in complete resolution of dystonia. He was developmentally normal, with no focal neurologic deficits. Cerebrospinal

Effects of sleep deprivation on mood and central amine metabolism in depressed patients.

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Nineteen patients, each hospitalized with a major depressive episode, were deprived of sleep for one night. Ten patients responded with clear improvement in depressive symptoms; the substantial clinical change was transient, usually lasting one day. Those who responded had significantly higher

Effects of catecholamine depletion on D2 receptor binding, mood, and attentiveness in humans: a replication study.

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The effect of catecholamine depletion, achieved by per-oral administration of 5250 mg alpha-methyl-para-tyrosine (AMPT) given in the 29 h prior to [11C]raclopride positron emission tomography (PET) was studied on measures of dopamine (DA) release, mood, and attention. Neostriatal DA levels in vivo

Manipulation of neurotransmitters by acupuncture (?) (A preliminary communication).

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Varying reactions of the vegetative nerve system to various point combinations (for example: vomiting, dizziness, diarrhea, urge to urinate, fatigue or drowsiness, headache), especially to the needling of Tai Chong (Li 3), induced us to perform biochemical studies before and after acupuncture

Low HVA and normal 5HIAA CSF levels in drug-free schizophrenic patients compared to healthy volunteers: correlations to symptomatology and family history.

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Cerebrospinal fluid (CSF) levels of homovanillic acid (HVA) and 5-hydroxyindoleacetic acid (5HIAA) were determined in 40 drug-free schizophrenic patients and 21 healthy volunteers by a mass fragmentographic method. Twenty-one of the schizophrenic patients were first admissions who had never received

Norman Cousins Lecture. Mechanisms of cytokine-induced behavioral changes: psychoneuroimmunology at the translational interface.

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Work in our laboratory has focused on the mechanisms by which cytokines can influence the brain and behavior in humans and non-human primates. Using administration of interferon (IFN)-alpha as a tool to unravel these mechanisms, we have expanded upon findings from the basic science literature

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