1980
DOI: 10.1111/j.1526-4610.1980.hed2006294.x
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Endogenous Opioids in Cerebrospinal Fluid and Blood in Idiopathic Headache Sufferers

Abstract: SYNOPSIS Endogenous opioids and 5‐hydroxytryptamine are the main neurotransmitters that regulate nociception, hedonia and autonomia. These functions are simultaneously impaired in idiopathic headaches. Enkephalins, beta‐endorphin, and tryptophan (5‐HT precursor) were evaluated in CSF and plasma of migraine and cluster headache sufferers. The following results were obtained:(a) decreased levels of CSF enkephalins in migraine attack and cluster headache,(b) increased CSF Tryptophan (TP) in migraine,(c) increased… Show more

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Cited by 99 publications
(50 citation statements)
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“…Why are migraineurs prone to frequent or daily headaches as the time evolved? Is this due to a depletion of central antinocioceptive neuro-chemical factors [13][14][15] or is it an abnormal sensitivity of the peripheral vascular receptors? What is the role of daily symptomatic medication in the perpetuation of the daily headache?…”
Section: Discussionmentioning
confidence: 99%
“…Why are migraineurs prone to frequent or daily headaches as the time evolved? Is this due to a depletion of central antinocioceptive neuro-chemical factors [13][14][15] or is it an abnormal sensitivity of the peripheral vascular receptors? What is the role of daily symptomatic medication in the perpetuation of the daily headache?…”
Section: Discussionmentioning
confidence: 99%
“…There is little experimental evidence relating migraine headaches to a disorder of endogenous opiates (27)(28)(29)(30)(31). A reasonable postulation suggests that "vascular" headaches might in part reflect a decrease in normal mechanisms of opiate-induced presynaptic inhibition at the peripheral and central terminals of primary sensory neurons, perhaps as the result of a decrease in dynorphin release or receptor interaction.…”
Section: Discussionmentioning
confidence: 99%
“…So far, it is difficult to decide whether the gastrin level decrease is a result of alimentary canal disturbances or is this relation at the CNS level, because the inter dependences of the gastrin level in brain and at the periphery are not yet fully evaluated. Similar distribution of gastrin and cholecystokinin in the brain [3,5] allows to suppose that gastrin can also take part in pain sensa tion modulation similarly to other neuropep tides [1,6]. This could correspond with the low level of this hormone in migraine and cluster headache sufferers.…”
Section: Resultsmentioning
confidence: 99%