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https://www.readbyqxmd.com/read/25712664/ergotamine-and-nicergoline-facts-and-myths
#1
REVIEW
Paweł Zajdel, Marek Bednarski, Jacek Sapa, Gabriel Nowak
Ergotamine, being a representative of naturally occurring ergoline alkaloids, derived from d-lysergic acid, and nicergoline, a d-lumilysergic acid derivative belonging to semi-synthetic ergot-derived alkaloids, display diversified affinity for adrenergic, serotoninergic, and dopamine receptors. Although introduction of triptans marginalized use of ergotamine, nicergoline is used in cerebral metabolic-vascular disorders, and dementia. Additionally, nicergoline exhibits a safety profile comparable to that of placebo, and none of the reviewed studies reported any incidence of fibrosis or ergotism with nicergoline treatment...
April 2015: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/21700019/bovine-neuronal-vesicular-glutamate-transporter-activity-is-inhibited-by-ergovaline-and-other-ergopeptines
#2
Y Xue, S F Liao, J R Strickland, J A Boling, J C Matthews
l-Glutamate (Glu) is a major excitatory neurotransmitter responsible for neurotransmission in the vertebrate central nervous system. Vesicular Glu transporters VGLUT1 and VGLUT2 concentrate (50mM) Glu [Michaelis constant (measuring affinity), or K(m),=1 to 4mM] into synaptic vesicles (SV) for subsequent release into the synaptic cleft of glutamatergic neurons. Vesicular Glu transporter activity is dependent on vacuolar H(+)-ATPase function. Previous research has shown that ergopeptines contained in endophyte-infected tall fescue interact with dopaminergic and serotoninergic receptors, thereby affecting physiology regulated by these neuron types...
July 2011: Journal of Dairy Science
https://www.readbyqxmd.com/read/21521208/one-hundred-years-of-migraine-research-major-clinical-and-scientific-observations-from-1910-to-2010
#3
REVIEW
Peer C Tfelt-Hansen, Peter J Koehler
Pain research, and headache research in particular, during the 20th century, has generated an enormous volume of literature promulgating theories, questions, and temporary answers. This narrative review describes the most important events in the history of migraine research between 1910 and 2010. Based on the standard textbooks of headache: Wolff's Headache (1948 and 1963) and The Headaches (1993, 2000, and 2006) topics were selected for a historical review. Most notably these included: isolation and clinical introduction of ergotamine (1918); further establishment of vasodilation in migraine and the constrictive action of ergotamine (1938); identification of pain-sensitive structures in the head (1941); Lashley's description of spreading scotoma (1941); cortical spreading depression (CSD) of Leão (1944); serotonin and the introduction of methysergide (1959); spreading oligemia in migraine with aura (1981); oligemia in the wake of CSD in rats (1982); neurogenic inflammation theory of migraine (1987); a new headache classification (1988); the discovery of sumatriptan (1988); migraine and calcitonin gene-related peptide (1990); the brainstem "migraine generator" and PET studies (1995); migraine as a channelopathy, including research from the genetic perspective (1996); and finally, meningeal sensitization, central sensitization, and allodynia (1996)...
May 2011: Headache
https://www.readbyqxmd.com/read/21520229/the-vascular-theory-of-migraine-leave-it-or-love-it
#4
EDITORIAL
Dan Levy, Rami Burstein
No abstract text is available yet for this article.
April 2011: Annals of Neurology
https://www.readbyqxmd.com/read/20488103/the-increase-in-cyclic-amp-levels-elicited-by-vasoactive-intestinal-peptide-vip-in-mouse-cerebral-cortical-slices-is-potentiated-by-ergot-alkaloids
#5
P J Magistretti, P Hof, M Schorderet
We have recently observed that noradrenaline potentiates, via the activation of specific ?-receptors, the stimulatory effects of vasoactive intestinal peptide on cyclic-AMP levels. We report here that certain ergot derivatives of the ergopeptine class, such as bromocriptine, ergotamine and codergocrine known to interact with alpha-adrenergic receptors, will also potentiate the effects of VIP on cyclic-AMP levels, without increasing directly the levels of the cyclic nucleotide. To our knowledge, these results demonstrate for the first time the existence of an interaction between a neuropeptide and ergot alkaloids within the cerebral cortex...
1984: Neurochemistry International
https://www.readbyqxmd.com/read/20343633/preliminary-observations-on-the-influence-of-ergotamine-and-dihydroergotamine-on-cerebral-blood-flow-in-the-dog
#6
B E ABREU, G W LIDDLE
No abstract text is available yet for this article.
1947: Federation Proceedings
https://www.readbyqxmd.com/read/20187861/management-of-sporadic-and-familial-hemiplegic-migraine
#7
REVIEW
Michael Bjørn Russell
Sporadic and familial hemiplegic migraines (SHM and FHM) are rare paroxysmal disorders characterized by motor aura and headache. The distinction is based on whether other family members are affected. The majority of FHM families have a mutation in one of the ion channels CACNA1A, ATP1A2 and SCN1A. SHM is sometimes caused by a de novo mutation in one of the genes. Clinical trials of SHM and FHM have not been conducted. Seizure in FHM is secondary to cerebral edema and fever among other factors. The regional cerebral blood flow is reduced during the reversible aura symptoms...
March 2010: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/18671908/cerebral-blood-flow-changes-in-patients-with-probable-medication-overuse-headache
#8
COMPARATIVE STUDY
Feray Karaali Savrun, Baki Goksan, Mert Savrun, Rahsan Sahin, Sevki Sahin
Transcranial Doppler (TCD) is a non-invasive method for measuring blood flow velocity (BFV), and a marker of vessel diameter. In this study, intracranial BFV was investigated, by means of TCD, in patients suffering from probable medication-overuse headache (PMOH). Twenty-three female patients with probable ergotamine- overuse headache (PEOH), 23 female patients with probable analgesic-overuse headache (PAOH), and 15 healthy female controls participated in the study. The mean BFVs of the bilateral middle and anterior cerebral arteries (MCA and ACA) and basilar artery (BA) were measured by TCD...
April 2008: Functional Neurology
https://www.readbyqxmd.com/read/18460007/history-of-the-use-of-ergotamine-and-dihydroergotamine-in-migraine-from-1906-and-onward
#9
P C Tfelt-Hansen, P J Koehler
Dale showed in 1906 in a seminal work that ergot inhibits the pressor effect of adrenaline. Stoll at Sandoz isolated ergotamine from ergot in 1918. Based on the belief that migraine was due to increased sympathetic activity, ergotamine was first used in the acute treatment of migraine by Maier in Switzerland in 1925. In 1938 Graham and Wolff demonstrated the parallel decrease of temporal pulsations and headache after ergotamine i.v. This inspired the vascular theory of Wolff: an initial cerebral vasoconstriction followed by an extracranial vasodilation...
August 2008: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/18415373/-clinical-aspects-of-pathophysiological-mechanisms-in-migraine
#10
K H Grotemeyer, I W Husstedt, H P Schlake
Migraine is more than the pain involved in the "migraine attack." Before the onset of pain many clinical symptoms can be observed. These symptoms may be classified as vegetative, affective, and vascular. Brain perfusion is altered during migraine attacks as well as during the intervals between attacks. These "more recent" findings are important because brain perfusion is controlled by metabolic and by neurotransmission mediated pathways: 750 ml blood/min is available in brain perfusion. The skull, on the other hand, limits the volume of blood in the brain to 130 ml...
December 1989: Der Schmerz
https://www.readbyqxmd.com/read/18344603/-strategies-for-antimigraine-agents
#11
REVIEW
Taketoshi Ishii, Hiroyuki Taniguchi, Akira Saito
No abstract text is available yet for this article.
March 2008: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
https://www.readbyqxmd.com/read/17578271/-the-prevalence-of-white-matter-abnormalities-on-magnetic-resonance-images-in-migraine
#12
Marianna Tóth, Olga Kundra, Arpád Kulin
INTRODUCTION: While examining patients with headache, abnormalities of unknown significance may quite frequently be encountered. In migraine small, subcortical, white matter abnormalities (WMAs) can be visualized by magnetic resonance images. The connection of these WMAs with the migraine is unclear, but some studies report the higher incidence of WMA in migraine. PATIENTS AND METHOD: The authors reviewed the MR scans of their new migraine patients younger than 55 years treated in period of 15 months, and compared the data with a control group...
May 30, 2007: Ideggyógyászati Szemle
https://www.readbyqxmd.com/read/17497262/contractile-responses-to-ergotamine-and-dihydroergotamine-in-the-perfused-middle-cerebral-artery-of-rat
#13
Peer Tfelt-Hansen, Elisabeth Nilsson, Lars Edvinsson
The vasomotor effects of ergotamine and dihydroergotamine (DHE) on the middle cerebral artery (MCA) of rats were studied using the pressurised arteriography method and in vitro myographs. MCAs from Sprague-Dawley rats were mounted on two glass micropipettes using the arteriograph, pressurised to 85 mmHg and luminally perfused. All vessels used attained spontaneous contractile tone (34.9+/-1.8% of resting tone) and responded to luminal adenosine triphosphate (ATP) with dilatation (24.1+/-4.0%), which showed functioning endothelium...
April 2007: Journal of Headache and Pain
https://www.readbyqxmd.com/read/17416056/-acute-and-chronic-headaches
#14
REVIEW
Anne Ducros
No abstract text is available yet for this article.
December 15, 2006: La Revue du Praticien
https://www.readbyqxmd.com/read/16871899/concurrent-moyamoya-disease-and-graves-thyrotoxicosis-case-report-and-literature-review
#15
REVIEW
Ai-Ling Shen, Shan-Jin Ryu, Shinn-Kuang Lin
Coexistence of thyrotoxicosis and moyamoya disease is extremely rare. A 23-year-old woman who had a history of migraine, suffered from frequent right carotid transient ischemic attacks, followed by an ischemic stroke after taking ergotamine for migraine. Magnetic resonance angiography revealed a tubular stenosis of the right internal carotid artery (ICA) and bilateral strictures of the supraclinoid segments of the ICAs. A concomitant thyrotoxicosis was found. A second stroke occurred three weeks later, when the dosage of antithyroid medication was increased and phenylpropanolamine-containing cold remedies were taken...
June 2006: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/16097850/the-risk-of-stroke-in-patients-with-migraine-and-implications-for-migraine-management
#16
REVIEW
Gretchen E Tietjen
Assessing the risk of stroke in persons with migraine is complicated by the intricate relationship between these two conditions. Both migraine and stroke are common and co-morbidity may, in some cases, be coincidental. Given the overlap of clinical symptoms in stroke and migraine, each condition may also mimic the other. Numerous studies have, however, shown that migraine is an independent risk factor for stroke both during, and remote from, the migraine attack. Women of childbearing age and those with aura are at greatest risk of migraine-related stroke...
2005: CNS Drugs
https://www.readbyqxmd.com/read/15613201/transformed-migraine-is-a-cause-of-chronic-daily-headaches
#17
COMPARATIVE STUDY
S Konno, J S Meyer, G M Margishvili, R A Rauch, A Haque
Chronic daily headaches (CDH) consist of episodes of head pain occurring daily; more than 15 days each month; often associated with a history of migraine, with or without aura; or with a history of tension-type headaches occurring alone or both occurring together. Chronic daily headaches are frequently associated with rebound headaches after ergotamine, barbiturate, caffeine, and analgesic abuse. We previously reported that migraineurs with typical intermittent headaches exhibited excessive cerebral cortical vasodilation after oral acetazolamide which usually precipitated and reproduced their typical headaches...
February 1999: Headache
https://www.readbyqxmd.com/read/15613180/transcranial-doppler-ultrasonographic-features-during-drug-withdrawal-from-drug-induced-headache-a-transcranial-doppler-follow-up-study
#18
C G Haase, H C Diener
BACKGROUND: A vascular component in ergotamine-induced headache has been proposed. No study has been carried out to evaluate cerebral hemodynamic changes by means of transcranial Doppler during withdrawal from migraine medication; in particular, ergotamine-containing drugs. METHOD: We examined 21 patients suffering from drug-induced headache during their in-hospital withdrawal from ergotamine (n=8) and compared them with patients during withdrawal from analgesics (n=13) and with healthy controls (n=14)...
October 1998: Headache
https://www.readbyqxmd.com/read/15549518/cluster-headache-symptomatic-treatment
#19
P Torelli, G C Manzoni
The clinical management of cluster headache (CH) attacks requires a symptomatic treatment that is rapidly effective in resolving or significantly reducing symptoms. First-choice drugs for the symptomatic treatment of CH are subcutaneous sumatriptan at a dose of 6 mg and 100% oxygen inhalation at a rate of 7 l/min for no more than 15 min. Sumatriptan acts by suppressing pain and the accompanying autonomic phenomena, with no substantial differences in its mechanism of action between episodic and chronic CH. The drug can be used for prolonged periods without loss of efficacy or safety and its side-effects are generally mild or moderate...
October 2004: Neurological Sciences
https://www.readbyqxmd.com/read/14606052/-multifocal-brain-haemorrhage-associated-with-migraine-and-medication-abuse
#20
E Páez de la Torre, G Lasic-Toccalino, F Mercado-Díez, C M Torres-Calloni, P E Balcarce-Bautista
INTRODUCTION: Although ischemic stroke is a well known complication of migraine, cerebral hemorrhage has been uncommonly reported. CASE REPORT: We present the case of a 56-year-old woman with a long history of headache and abuse of ergotamine and antiinflamatory drugs who was admitted for generalized seizures, right hemiparesis and coma. An early brain CT scan showed multiple cortico-subcortical hemorrhages localized amongst others on right frontal, left parietal, and posterior left temporo parietal regions...
November 1, 2003: Revista de Neurologia
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