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https://www.readbyqxmd.com/read/29350125/current-management-migraine-headache
#1
Stephen D Silberstein
Migraine varies in its frequency, severity, and impact; treatment should consider these variations and the patient's needs and goals. Migraine pharmacologic treatment may be acute (abortive) or preventive (prophylactic), and patients often require both. New medication devices are available or in development, including an intracutaneous, microneedle system of zolmitriptan and sumatriptan, and breath-powered powder sumatriptan intranasal treatment. Lasmiditan, a 5-HT1F receptor agonist, is in development for acute treatment, as are small molecule calcitonin gene-related peptide (CGRP) receptor antagonists (Gepants) for acute and preventive treatment...
December 2017: CNS Spectrums
https://www.readbyqxmd.com/read/29344989/salmon-calcitonin-ameliorates-migraine-pain-through-modulation-of-cgrp-release-and-dural-mast-cell-degranulation-in-rats
#2
Erkan Kilinc, Yasar Dagistan, Aysel Kukner, Bayram Yilmaz, Sami Agus, Gizem Soyler, Fatma Tore
The exact mechanism of migraine pathophysiology still remains unclear due to the complex nature of migraine pain. Salmon calcitonin (SC) exhibits antinociceptive effects in the treatment of various pain conditions. In this study, we explored the mechanisms underlying the analgesic effect of salmon calcitonin on migrane pain using glyceryltrinitrate(GTN)-induced model of migraine and ex-vivo meningeal preparations in rats. Rats were administered intraperitoneally saline, GTN(10mg/kg), vehicle, saline+GTN, SC(50μg/kg)+GTN, and SC alone...
January 18, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29336505/signalling-transduction-events-involved-in-agonist-induced-pge2-ep4-receptor-externalization-in-cultured-rat-dorsal-root-ganglion-neurons
#3
W Ma, B St-Jacques
BACKGROUND: Prostaglandin E2 (PGE2) enriched in inflamed tissues contributes to chronic pain by sensitizing nociceptive dorsal root ganglion (DRG) neurons (nociceptors). Of four PGE2 receptors (EP1-4), EP4 plays a major role in PGE2-induced nociceptor sensitization. We have previously reported that PGE2 or EP4 agonists stimulated EP4 externalization in cultured DRG neurons and this event contributes to nociceptor sensitization. However, the signalling transduction events governing this event remain unknown...
January 16, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29335794/effect-of-a-calcitonin-gene-related-peptide-binding-l-rna-aptamer-on-neuronal-activity-in-the-rat-spinal-trigeminal-nucleus
#4
Michael J M Fischer, Jakob Schmidt, Stanislav Koulchitsky, Sven Klussmann, Axel Vater, Karl Messlinger
BACKGROUND: Calcitonin gene-related peptide (CGRP) plays a major role in the pathogenesis of migraine and other primary headaches. Spinal trigeminal neurons integrate nociceptive afferent input from trigeminal tissues including intracranial afferents, and their activity is thought to reflect facial pain and headache in man. CGRP receptor inhibitors and anti-CGRP antibodies have been demonstrated to be therapeutically effective in migraine. In parallel, CGRP receptor inhibition has been shown to lower spinal trigeminal neuron activity in animal models of meningeal nociception...
January 15, 2018: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29334670/genetic-ablation-of-trpv1-exacerbates-pressure-overload-induced-cardiac-hypertrophy
#5
Beihua Zhong, Jack Rubinstein, Shuangtao Ma, Donna H Wang
Transient receptor potential vanilloid 1 (TRPV1) channels expressed in sensory nerves may regulate vascular tone and cardiovascular function via their anti-inflammatory effects by releasing neuropeptide calcitonin gene-related peptide (CGRP). Inflammation plays a role in the progression of cardiac hypertrophy and TRPV1 activation may be key to cardiac inflammatory processes. The aim of this study was to test the hypothesis that TRPV1 modulates inflammatory processes to protect the heart from pressure overload-induced hypertrophy and inflammatory responses...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29333099/pulsed-radiofrequency-applied-to-the-sciatic-nerve-improves-neuropathic-pain-by-down-regulating-the-expression-of-calcitonin-gene-related-peptide-in-the-dorsal-root-ganglion
#6
Hao Ren, Hailong Jin, Zipu Jia, Nan Ji, Fang Luo
Background: Clinical studies have shown that applying pulsed radiofrequency (PRF) to the neural stem could relieve neuropathic pain (NP), albeit through an unclear analgesic mechanism. And animal experiments have indicated that calcitonin gene-related peptide (CGRP) expressed in the dorsal root ganglion (DRG) is involved in generating and maintaining NP. In this case, it is uncertain whether PRF plays an analgesic role by affecting CGRP expression in DRG. Methods: Rats were randomly divided into four groups: Groups A, B, C, and D...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29328505/substance-p-as-a-putative-efferent-transmitter-mediates-gabaergic-inhibition-in-mouse-taste-buds
#7
Anthony Y Huang, Sandy Y Wu
BACKGROUND AND PURPOSE: Capsaicin-mediated modulation on taste nerve responses is thought to be produced indirectly by actions of neuropeptides, e.g., calcitonin gene-related peptide (CGRP) and substance P (SP), onto taste cells implying playing a role in taste sensitivity. During processing gustatory information in taste buds, CGRP shapes peripheral taste signals via serotonergic signaling. The underlying assumption has been that SP exerts its effects on taste transmitter secretion in taste buds of mice...
January 12, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29318857/-effect-of-electroacupuncture-on-expression-of-5-ht7-receptor-in-periaqueductal-gray-and-plasma-calcitonin-gene-related-peptide-in-migraine-rats
#8
Pei Pei, Huai-Zhen Chen, Yan-Xin Wang, Wen-Ming Yang, Lu Liu, Lin-Peng Wang
OBJECTIVE: To explore the analgesic effect of electroacupuncture(EA)by modulating 5-hydroxytryptamine 7 (5-HT7) receptor in periaqueductal gray (PAG) and plasma calcitonin gene-related peptide (CGRP). METHODS: Forty-two male Sprague Dawley (SD) rats were randomly divided into control,model and EA groups, 14 rat in each one. The neurogenic migraine model was established by repeated electrical stimulation on sagittal sinus duramater. Intracranial electrodes were used in the control group without stimuli...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29315262/intraarticularly-injected-mesenchymal-stem-cells-stimulate-anti-inflammatory-molecules-and-inhibit-pain-related-protein-and-chondrolytic-enzymes-in-a-monoiodoacetate-induced-rat-arthritis-model
#9
Toru Ichiseki, Miyako Shimazaki, Yoshimichi Ueda, Shusuke Ueda, Masanobu Tsuchiya, Daisuke Souma, Ayumi Kaneuji, Norio Kawahara
Persistent inflammation is well known to promote the progression of arthropathy. mesenchymal stem cells (MSCs) have been shown to possess anti-inflammatory properties and tissue differentiation potency. Although the experience so far with the intraarticular administration of mesenchymal stem cell (MSC) to induce cartilage regeneration has been disappointing, MSC implantation is now being attempted using various surgical techniques. Meanwhile, prevention of osteoarthritis (OA) progression and pain control remain important components of the treatment of early-stage OA...
January 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29301790/chronic-kidney-disease-circulating-calciprotein-particles-and-extracellular-vesicles-promote-vascular-calcification-a-role-for-grp-gla-rich-protein
#10
Carla S B Viegas, Lúcia Santos, Anjos L Macedo, António A Matos, Ana P Silva, Pedro L Neves, An Staes, Kris Gevaert, Rute Morais, Cees Vermeer, Leon Schurgers, Dina C Simes
OBJECTIVE: Inhibition of mineral crystal formation is a crucial step in ectopic calcification. Serum calciprotein particles (CPPs) have been linked to chronic kidney disease (CKD) calcification propensity, but additional knowledge is required to understand their function, assemblage, and composition. The role of other circulating nanostructures, such as extracellular vesicles (EVs) in vascular calcification is currently unknown. Here, we investigated the association of GRP (Gla-rich protein) with circulating CPP and EVs and the role of CKD CPPs and EVs in vascular calcification...
January 4, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29298622/oral-coenzyme-q10-supplementation-in-patients-with-migraine-effects-on-clinical-features-and-inflammatory-markers
#11
Monireh Dahri, Ali Tarighat-Esfanjani, Mohammad Asghari-Jafarabadi, Mazyar Hashemilar
BACKGROUNDS AND AIMS: Migraine and inflammation are correlated. Coenzyme Q10 (CoQ10) as an anti-inflammatory agent has shown useful effects in other diseases. The present study aimed to assess the effect of CoQ10 supplementation on inflammation and clinical features of migraine. METHODS: This randomized double-blind placebo-controlled clinical trial was conducted among 45 non-menopausal women aged 18-50 years, diagnosed for episodic migraine according to the International Headache Society...
January 3, 2018: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29298514/increased-calcitonin-gene-related-peptide-and-macrophages-are-involved-in-astragalus-membranaceus-mediated-peripheral-nerve-regeneration-in-rats
#12
Chung-Chia Chen, Ling-Chuan Chang, Chun-Hsu Yao, Yuan-Man Hsu, Jia-Horng Lin, Tse-Yen Yang, Yung-Hsiang Chen, Yueh-Sheng Chen
Astragalus membranaceus (AM) is one of 50 fundamental herbs in traditional Chinese medicine. Previous studies have shown that AM extract can be a potential nerve growth-promoting factor, being beneficial for the growth of peripheral nerve axons. We further investigated the effects of AM extract on regeneration in a rat sciatic nerve transection model. Rats were divided into three groups ([Formula: see text]): normal saline (intraperitoneal) as the control, and 1.5[Formula: see text]g/kg or 3.0[Formula: see text]g/kg of AM extract (every other day for four weeks), respectively...
January 3, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29297736/increased-receptor-activity-modifying-protein-1-in-the-nervous-system-is-sufficient-to-protect-against-autonomic-dysregulation-and-hypertension
#13
Rasna Sabharwal, Bianca N Mason, Adisa Kuburas, Francois M Abboud, Andrew F Russo, Mark W Chapleau
Calcitonin gene-related peptide (CGRP) can cause migraines, yet it is also a potent vasodilator that protects against hypertension. Given the emerging role of CGRP-targeted antibodies for migraine prevention, an important question is whether the protective actions of CGRP are mediated by vascular or neural CGRP receptors. To address this, we have characterized the cardiovascular phenotype of transgenic nestin/hRAMP1 mice that have selective elevation of a CGRP receptor subunit in the nervous system, human receptor activity-modifying protein 1 (hRAMP1)...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29297566/immunohistochemical-characteristics-of-neurons-in-the-ganglia-of-the-greater-splanchnic-nerve-of-the-pig
#14
Jamal Nourinezhad, Piotr Podlasz, Krzysztof Wasowicz
INTRODUCTION: Greater splanchnic nerve (GSN) is by far the largest of the splanchnic nerves and connects the paravertebral and prevertebral ganglia to transmit the majority of nociceptive information from the viscera. Despite its importance, the immunohistochemical features of the porcine GSN neurons have not yet been examined. Therefore, the aim of the study was to investigate the neurochemistry of the porcine GSN neurons and to compare their neurochemical coding with those of the paravertebral and prevertebral ganglia...
January 3, 2018: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/29288742/the-research-of-the-possible-mechanism-and-the-treatment-for-capsaicin-induced-cough
#15
Li Zhang, Tieying Sun, Longteng Liu, Lifang Wang
Unexplained chronic cough (UCC) affects millions of patients worldwide. New therapeutic approaches to this condition are urgently needed, since current treatment options provide only symptomatic relief. Cough reflex hypersensitivity has been shown to play an important role in the pathogenesis of UCC. The transient receptor potential vanilloid type 1 (TRPV1) is present on peripheral terminals of airway sensory nerves and modulation of its activity represents a potential target for the pharmacological treatment of UCC...
December 27, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29287611/distribution-of-nerve-fibers-during-the-development-of-palatine-glands-in-rats
#16
Zaki Hakami
BACKGROUND: Salivary gland maturation and function are modulated by the nervous system. Nevertheless, little is known about salivary gland innervation during development, particularly minor salivary glands. This study investigated the development of the innervation of the palatine glands of rat. MATERIALS AND METHODS: Frozen sections of rat palatine glands at different stages were immunohistochemically labeled for detection of the general nerve markers protein gene product 9...
December 26, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29276263/calcitonin-gene-related-peptide-receptor-antagonists-for-migraine-prophylaxis
#17
Scot Walker
Migraine is a common disorder affecting 12% of the U.S. POPULATION: Prophylaxis is recommended for patients who experience frequent migraines. Because current drugs used for prophylaxis are not 100% effective and cause adverse effects that affect compliance, new strategies have been studied to prevent headaches. One new pharmacologic strategy is to use an inhibitor of the calcitonin gene-related peptide (CGRP). As a class, the CGRP receptor inhibitors have reduced monthly migraine days and are well tolerated...
June 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/29260608/tonic-regulation-of-middle-meningeal-artery-diameter-by-atp-sensitive-potassium-channels
#18
Arsalan U Syed, Masayo Koide, Joseph E Brayden, George C Wellman
Activation of ATP-sensitive potassium (KATP) channels in arterial smooth muscle (ASM) contributes to vasodilation evoked by a variety of endogenous and exogenous compounds. Although controversial, activation of KATP channels by neuropeptides such as calcitonin gene-related peptide (CGRP) and pituitary adenylate cyclase activating peptide (PACAP) in the trigeminovascular system, including the middle meningeal artery (MMA), has been linked to migraine headache. The objective of the current study was to determine if ongoing KATP channel activity also influences MMA diameter...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29247491/the-roles-of-trpv1-trpa1-and-trpm8-channels-in-chemical-and-thermal-sensitivity-of-the-mouse-oral-mucosa
#19
Tatjana I Kichko, Winfried Neuhuber, Gerd Kobal, Peter W Reeh
Spices in food and beverages and compounds in tobacco smoke interact with sensory irritant receptors of the transient receptor potential (TRP) cation channel family. TRPV1 (vanilloid type 1), TRPA1 (ankyrin 1) and TRPM8 (melastatin 8) not only elicit action potential signaling through trigeminal nerves, eventually evoking pungent or cooling sensations, but by their calcium conductance they also stimulate the release of calcitonin gene-related peptide (CGRP). This is measured as an index of neuronal activation to elucidate the chemo- and thermosensory transduction in the isolated mouse buccal mucosa of wildtypes and pertinent knockouts...
December 15, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29242523/migraine-cgrp-targeting-antibodies-reduce-migraine-frequency
#20
Heather Wood
No abstract text is available yet for this article.
December 15, 2017: Nature Reviews. Neurology
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