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l tryptophan/hovedpine
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Cerebrospinal fluid 5-hydroxyindoleacetic acid level in migrainous patients during spontaneous attacks, during headache-free periods and following treatment with L-tryptophan.
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[L-tryptophan treatment in essential headache: preliminary data].
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The ingestion of serotonin precursors (L-5-hydroxytryptophan and L-tryptophan) improves migraine headache.
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Enhanced production of 5-hydroxytryptophan through the regulation of L-tryptophan biosynthetic pathway.
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5-Hydroxytryptophan (5-HTP) is the precursor of the neurotransmitter serotonin and has been used for the treatment of various diseases such as depression, insomnia, chronic headaches, and binge eating associated obesity. The production of 5-HTP had been achieved in our previous report, by the
Induction of migrainelike headaches by the serotonin agonist m-chlorophenylpiperazine.
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In a study of serotonin (5-HT) function in patients with eating disorders and healthy control subjects, severe headaches with features of common migraine occurred unexpectedly in 28 of 52 subjects (54%) 8 to 12 hours after receiving a single oral dose of the 5-HT receptor agonist
α-[11C] methyl-L tryptophan-PET as a surrogate for interictal cerebral serotonin synthesis in migraine without aura.
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BACKGROUND
Alteration in central serotonin biology has been implicated in migraine, and serotonin (5-HT) agonists have been available for more than a decade in the treatment of that condition.
OBJECTIVE
To test this hypothesis, we studied in vivo using positron-emission tomography (PET) and
Complementary and alternative medicine (CAM) in headache of children and adolescents: open-label Italian study
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Objective: The aim of the present research is to evaluate and to compare various nutraceuticals and food supplements in the headaches prophylaxis.
Background: Recently the use
Tryptophan depletion increases nausea, headache and photophobia in migraine sufferers.
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Sensitivity to light was investigated 5 and 8 h after consumption of an amino acid drink which contained L-tryptophan (balanced amino acid condition: 19 controls and 22 migraine sufferers) or which produced a short-term reduction in brain serotonin synthesis by omitting L-tryptophan (tryptophan
Antidepressants for neuropathic pain.
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BACKGROUND
For many years antidepressant drugs have been used to manage neuropathic pain, and are often the first choice treatment. It is not clear, however, which antidepressant is more effective, what role the newer antidepressants can play in treating neuropathic pain, and what adverse effects
Sumatriptan normalizes the migraine attack-related increase in brain serotonin synthesis.
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BACKGROUND
Altered serotonin (5-HT) neurotransmission has been implicated in the pathophysiology of migraine headache.
OBJECTIVE
To test this hypothesis in migraine patients in vivo using PET and alpha-[(11)C]methyl-l-tryptophan as a surrogate marker of brain 5-HT synthetic rate during different
Selective decrease in serotonin synthesis rate in rat brainstem raphe nuclei following chronic administration of low doses of amitriptyline: an effect compatible with an anti-migraine effect.
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The effects of chronic, low-dose amitriptyline on serotonin (5-HT) synthesis rate were measured in rat brain using autoradiography and the trapping of alpha-[14C]-methyl-L-tryptophan (alpha-[14C]-MTrp). Rats received amitriptyline (2 mg/kg per day) or saline via intraperitoneal osmotic minipumps for
Eosinophilia-myalgia syndrome case-associated contaminants in commercially available 5-hydroxytryptophan.
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Recently, 5-hydroxy-L-tryptophan (5-OHTrp) has been promoted as an alternative to banned L-tryptophan as a dietary supplement. It has been claimed to help alleviate obesity, insomnia, depression, and headaches. However, eosinophilia-myalgia syndrome (EMS)-like symptoms have also been associated with
Increased brain serotonin synthesis in migraine.
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OBJECTIVE
To measure brain serotonin synthesis with PET using the tracer alpha-[11C]methyl-L-tryptophan in migraine patients.
BACKGROUND
Although the cause of migraine remains poorly understood, there is considerable evidence to support a role of the neurotransmitter serotonin in the pathophysiology
Neurologic, MR imaging, and MR spectroscopic findings in eosinophilia myalgia syndrome.
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OBJECTIVE
Eosinophilia myalgia syndrome (EMS), a multisystemic disease induced by exposure to L-tryptophan, may result in serious CNS abnormalities. The purpose of this study was to determine the pattern of neurologic characteristics, MR imaging abnormalities, and brain neurometabolites in
Biorhythms and possible central regulation of magnesium status, phototherapy, darkness therapy and chronopathological forms of magnesium depletion.
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Biological clock and magnesium status are linked. Central magnesium regulation may be hypothetized. Balanced magnesium status is requested to obtain efficiency of suprachiasmatic nuclei and of pineal gland. Conventional bright light therapy appears as a speedy and efficient antidepressant medication
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