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https://www.readbyqxmd.com/read/27910899/glial-pannexin1-contributes-to-tactile-hypersensitivity-in-a-mouse-model-of-orofacial-pain
#1
Regina Hanstein, Menachem Hanani, Eliana Scemes, David C Spray
Drug studies in animal models have implicated pannexin1 (Panx1) in various types of pain, including trigeminal hypersensitivity, neuropathic pain and migraine. However, the tested drugs have limited specificity and efficacy so that direct evidence for Panx1 contribution to pain has been lacking. We here show that tactile hypersensitivity is markedly attenuated by deletion of Panx1 in a mouse model of chronic orofacial pain; in this model, trigeminal ganglion Panx1 expression and function are markedly enhanced...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910089/bilateral-endolymphatic-hydrops-in-a-patient-with-migraine-variant-without-vertigo-a-case-report
#2
Isabelle Y Liu, Akira Ishiyama, Ali R Sepahdari, Kevin Johnson, Gail Ishiyama
OBJECTIVE: To use modern high-resolution inner ear imaging modalities to evaluate for endolymphatic hydrops (EH) in a patient with migraine-associated fluctuating hearing loss without vertigo spells or dizziness. BACKGROUND: EH has been well described in patients with Meniere's disease on both human temporal bone studies and modern high-resolution imaging; however, there is no study to date, to our knowledge, that examines the presence of EH in a patient with migraine and bilateral hearing loss...
December 2, 2016: Headache
https://www.readbyqxmd.com/read/27902848/topiramate-in-migraine-prevention-a-2016-perspective
#3
Stephen D Silberstein
BACKGROUND: In evidence-based guidelines published in 2000, topiramate was a third-tier migraine preventive with no scientific evidence of efficacy; recommendation for its use reflected consensus opinion and clinical experience. Its neurostabilizing activity, coupled with its favorable weight profile, made topiramate an attractive alternative to other migraine preventives that caused weight gain. When guidelines for migraine prevention in episodic migraine were published in 2012, topiramate was included as a first-line option based on double-blind, randomized controlled trials involving nearly 3000 patients...
November 30, 2016: Headache
https://www.readbyqxmd.com/read/27899434/development-of-cgrp-dependent-pain-and-headache-related-behaviours-in-a-rat-model-of-concussion-implications-for-mechanisms-of-post-traumatic-headache
#4
Dara Bree, Dan Levy
BACKGROUND AND OBJECTIVE: Posttraumatic headache (PTH) is one of the most common, debilitating and difficult symptoms to manage after a mild traumatic brain injury, or concussion. However, the mechanisms underlying PTH remain elusive, in part due to the lack of a clinically relevant animal model. Here, we characterized for the first time, headache and pain-related behaviours in a rat model of concussion evoked by a mild closed head injury (mCHI) - the major type of military and civilian related trauma associated with PTH - and tested responses to current and novel headache therapies...
November 29, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27898338/effect-of-pgd2-on-middle-meningeal-artery-and-mrna-expression-profile-of-l-pgd2-synthase-and-dp-receptors-in-trigeminovascular-system-and-other-pain-processing-structures-in-rat-brain
#5
Aysegül Sekeroglu, Julie Mie Jacobsen, Inger Jansen-Olesen, Saurabh Gupta, Majid Sheykhzade, Jes Olesen, Deepak K Bhatt
BACKGROUND: Prostaglandins (PGs), particularly prostaglandin D2 (PGD2), E2 (PGE2), and I2 (PGI2), are considered to play a role in migraine pain. In humans, infusion of PGD2 causes lesser headache as compared to infusion of PGE2 and PGI2. Follow-up studies in rats have shown that infusion of PGE2 and PGI2 dilate the middle meningeal artery (MMA), and mRNA for PGE2 and PGI2 receptors is present in rat trigeminovascular system (TVS) and in the brain structures associated with pain. In the present study, we have characterized the dilatory effect of PGD2 on rat MMA and studied the relative mRNA expression of PGD2 receptors and lipocalin-type of PGD2 synthase (L-PGDS)...
September 19, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27895449/cadasil-presenting-with-spontaneous-intracerebral-hemorrhage-report-of-a-case-and-description-of-the-first-family-in-northern-greece
#6
I Koutroulou, T Karapanayiotides, N Grigoriadis, D Karacostas
INTRODUCTION: CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy), the most common inherited cause of stroke and dementia in adults, has been described in six Greek families. Common presenting manifestations include migraine with aura, brain ischemia, mood disorders and cognitive decline. Spontaneous intracerebral hemorrhage (SICH) rarely occurs in CADASIL and only exceptionally as the first clinical manifestation. CASE DESCRIPTION: We have previously reported the sixth Greek family with CADASIL and in particular, two brothers in whom the genetic testing documented a classic mutation of the NOTCH3 gene (Arg169Cys)...
January 2016: Hippokratia
https://www.readbyqxmd.com/read/27884929/pro-nociceptive-migraine-mediator-cgrp-provides-neuroprotection-of-sensory-cortical-and-cerebellar-neurons-via-multi-kinase-signaling
#7
Polina A Abushik, Geneviève Bart, Paula Korhonen, Hanna Leinonen, Raisa Giniatullina, Dmitry A Sibarov, Anna-Liisa Levonen, Tarja Malm, Sergei M Antonov, Rashid Giniatullin
BACKGROUND: Blocking the pro-nociceptive action of CGRP is one of the most promising approaches for migraine prophylaxis. The aim of this study was to explore a role for CGRP as a neuroprotective agent for central and peripheral neurons. METHODS: The viability of isolated rat trigeminal, cortical and cerebellar neurons was tested by fluorescence vital assay. Engagement of Nrf2 target genes was analyzed by qPCR. The neuroprotective efficacy of CGRP in vivo was tested in mice using a permanent cerebral ischemia model...
November 24, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27881154/targeted-next-generation-sequencing-identifies-novel-notch3-gene-mutations-in-cadasil-diagnostics-patients
#8
Neven Maksemous, Robert A Smith, Larisa M Haupt, Lyn R Griffiths
BACKGROUND: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a monogenic, hereditary, small vessel disease of the brain causing stroke and vascular dementia in adults. CADASIL has previously been shown to be caused by varying mutations in the NOTCH3 gene. The disorder is often misdiagnosed due to its significant clinical heterogeneic manifestation with familial hemiplegic migraine and several ataxia disorders as well as the location of the currently identified causative mutations...
November 24, 2016: Human Genomics
https://www.readbyqxmd.com/read/27876311/circulating-biomarkers-in-cerebral-autosomal-dominant-arteriopathy-with-subcortical-infarcts-and-leukoencephalopathy-patients
#9
Francesca Pescini, Ida Donnini, Francesca Cesari, Serena Nannucci, Raffaella Valenti, Valentina Rinnoci, Anna Poggesi, Anna Maria Gori, Betti Giusti, Angela Rogolino, Alessandra Carluccio, Silvia Bianchi, Maria Teresa Dotti, Antonio Federico, Maurizio Balestrino, Enrico Adriano, Rosanna Abbate, Domenico Inzitari, Leonardo Pantoni
BACKGROUND: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited cerebral microangiopathy presenting with variable features, including migraine, psychiatric disorders, stroke, and cognitive decline and variable disability. On neuroimaging, CADASIL is characterized by leukoencephalopathy, multiple lacunar infarcts, and microbleeds. Previous studies suggest a possible role of endothelial impairment in the pathogenesis of the disease...
November 18, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27875242/involvement-of-bdnf-trkb-and-erk-creb-axes-in-nitroglycerin-induced-rat-migraine-and-effects-of-estrogen-on-these-signals-in-the-migraine
#10
Jiu-Qing Guo, Hui-Hui Deng, Xiao Bo, Xiao-Su Yang
Migraine is a highly prevalent headache disorder especially in women. Brain-derived neurotrophic factor (BDNF) and its receptor tropomyosin receptor kinases (TrkB), as well as extracellular signal-regulated kinase (ERK) and its downstream target c-AMP-responsive element binding protein (CREB) are strongly associated with the transmission of nociceptive information. However, the involvement of these substances in migraine has rarely been examined. In the present study, intraperitoneal injection of nitroglycerin (NTC) successfully induced rat migraine attack, as evidenced by the behavioral testing...
November 14, 2016: Biology Open
https://www.readbyqxmd.com/read/27866934/pharmacodynamic-action-and-mechanism-of-du-liang-soft-capsule-a-traditional-chinese-medicine-capsule-on-treating-nitroglycerin-induced-migraine
#11
Min Hou, Qing Tang, Qiang Xue, Xiaona Zhang, Yang Liu, Sheng Yang, Liechun Chen, Xiaoyu Xu
ETHNOPHARMACOLOGICAL RELEVANCE: Du Liang soft capsule (DL) is a traditional Chinese medicine for treating migraines; it is made from two Chinese herbs, including LigusticumstriatumDC., root; Angelica dahurica (Hoffm.) Benth. & Hook.f. ex Franch. & Sav., root. AIM OF THE STUDY: In the present study, we aimed to elucidate the pharmacodynamic action of DL and its mechanism in an animal model of migraines induced by glyceryl trinitrate (GTN). MATERIALS AND METHODS: Sixty rats were randomly divided into six groups, including a normal control group, model control group, positive group (Sumatriptan 0...
November 17, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27864941/male-old-and-low-income-to-predispose-epilepsy-in-migraineurs
#12
Tomor Harnod, Yu-Chiao Wang, Chun-Hung Tseng
AIMS: This study investigated whether sex, age, income, and any comorbidity affect subsequent epilepsy development in migraineurs. METHODS: A total of 4915 men diagnosed with migraine who were aged older than 20 years were identified as the study cohort. A total of 4882 female migraineurs were included in the comparison cohort. We calculated the adjusted hazard ratio (aHR) for the risk of epilepsy in the two cohorts after adjustment for age and comorbidity. Kaplan-Meier analysis was used to analyze the cumulative epilepsy incidence, and the log-rank test was used to estimate the differences between the two cumulative incidence curves...
November 16, 2016: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27861827/women-living-together-have-a-higher-frequency-of-menstrual-migraine
#13
Karen S Ferreira, Gisela Guilherme, Viviane R Faria, Larissa M Borges, Angel A T Uchiyama
BACKGROUND: Menstrual migraine is a highly prevalent disorder among adult women, resulting in disability and loss of quality of life. Some studies have reported menstrual cycle synchrony among women living together. No study has reported whether there may also be a higher prevalence of menstrual migraine among these women. Thus, they reported here the prevalence of menstrual migraine in a group of women living together compared with a control group of women living alone, and discussed the possible factors involved...
November 10, 2016: Headache
https://www.readbyqxmd.com/read/27858294/sleep-quality-morningness-eveningness-preference-mood-profile-and-levels-of-serum-melatonin-in-migraine-patients-a-case-control-study
#14
Hasan Hüseyin Kozak, Murat Boysan, Ali Ulvi Uca, Adem Aydın, İbrahim Kılınç, Emine Genç, Mustafa Altaş, Dilara Cari Güngör, Keziban Turgut, Nejla Özer
The melatonin as the pineal gland's secretory product is implicated in the pathophysiology of migraine. Melatonin has critical functions in human physiology, and research underscores the importance of melatonin in circadian rhythm, sleep, and mood regulation. Clinical observations have indicated that migraine attacks have a seasonal, menstrual, and circadian timing, suggesting that chronobiological mechanisms and their alterations may causally involve in the etiology of the disease. However, the topic has received relatively little attention in the migraine literature...
November 17, 2016: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/27857136/differentiating-lipedema-and-dercum-s-disease
#15
K Beltran, K L Herbst
BACKGROUND: People with lipedema or Dercum's disease (DD) can have a similar distribution of excess painful nodular subcutaneous adipose tissue (SAT) making them difficult to differentiate. METHODS: Case series of 94 patients with DD, 160 with lipedema and 18 with both diagnoses (Lip+DD) from a single clinic in an academic medical center to improve identification and differentiation of these disorders by comparison of clinical findings, prevalence of type 2 diabetes (DM2), hypermobility by the Beighton score, and assessment of a marker of inflammation, Total complement activity (CH50)...
November 18, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27855460/-diagnosis-and-current-therapy-of-vestibular-syndromes
#16
Michael Strupp, Thomas Brandt
Vertigo and dizziness are with an annual incidence of more than 10% and a lifetime prevalence of more than 30% among the most frequent symptoms. The keys to the diagnosis are the patient history and the bedside examination: a) for the patient history the time course, type and triggers of symptoms and accompanying symptoms, b) for the clinical examination of the vestibular system the head-impulse test (HIT), the examination for a spontaneous nystagmus, a displacement of subjective visual vertical, a positional nystagmus and the Romberg test, and c) for the differentiation between an acute peripheral and central vestibular lesion the skew deviation, central fixation nystagmus, gaze-evoked nystagmus, saccadic smooth pursuit and a normal HIT...
November 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27837419/genetics-of-ion-homeostasis-in-m%C3%A3-ni%C3%A3-re-s-disease
#17
Roberto Teggi, Laura Zagato, Simona Delli Carpini, Lorena Citterio, Claudia Cassandro, Roberto Albera, Wen-Yi Yang, Jan A Staessen, Mario Bussi, Paolo Manunta, Chiara Lanzani
Aim of this work was to assess the role of polymorphisms belonging to genes involved in the regulation of ionic homeostasis in Caucasian patients with Ménière Disease (MD). We recruited 155 patients with definite Ménière Disease and 186 controls (Control Group 1) without a lifetime history of vertigo, overlapping with patients for age and rate of hypertension. We validated the positive results on 413 Caucasian subjects selected from a European general population (Control Group 2). The clinical history for migraine and hypertension was collected; genomic DNA was characterized for a panel of 33 SNPs encoding proteins involved in ionic transport...
November 11, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27837002/safety-of-domperidone-in-treating-nausea-associated-with-dihydroergotamine-infusion-and-headache
#18
Nathaniel M Robbins, Hiroyuki Ito, Melvin M Scheinman, Peter J Goadsby
OBJECTIVE: To determine the safety of domperidone in the treatment of nausea associated with dihydroergotamine (DHE) infusion and headache. METHODS: We audited our use of domperidone for the inpatient management of nausea, focusing on known safety concerns, particularly potential cardiac arrhythmias. RESULTS: We reviewed 103 consecutive admissions of 90 patients admitted for IV DHE by infusion. Most admissions were to treat chronic migraine with (n = 53) or without (n = 46) aura...
November 11, 2016: Neurology
https://www.readbyqxmd.com/read/27832651/assessment-of-migraine-history-in-patients-with-a-transient-ischemic-attack-or-stroke-validation-of-a-migraine-screener-for-stroke
#19
Daphne van der Willik, Nadine Pelzer, Ale Algra, Gisela M Terwindt, Marieke J H Wermer
BACKGROUND: To investigate the connection between migraine and stroke, a reliable screening tool to gather information about a person's migraine history is crucial. We studied the test-characteristics of a 5-question Migraine Screener for Stroke (MISS). METHODS: We included a random sample of patients with a transient ischemic attack or stroke who answered the MISS questionnaire when they were admitted to our hospital. After discharge, a semi-structured telephone interview was conducted to validate the migraine diagnosis with the International Classification of Headache Disorders, second-edition criteria as gold standard...
November 11, 2016: European Neurology
https://www.readbyqxmd.com/read/27826448/a-feasible-repetitive-transcranial-magnetic-stimulation-clinical-protocol-in-migraine-prevention
#20
Shawn Zardouz, Lei Shi, Albert Leung
OBJECTIVE: This case series was conducted to determine the clinical feasibility of a repetitive transcranial magnetic stimulation protocol for the prevention of migraine (with and without aura). METHODS: Five patients with migraines underwent five repetitive transcranial magnetic stimulation sessions separated in 1- to 2-week intervals for a period of 2 months at a single tertiary medical center. Repetitive transcranial magnetic stimulation was applied to the left motor cortex with 2000 pulses (20 trains with 1s inter-train interval) delivered per session, at a frequency of 10 Hz and 80% resting motor threshold...
2016: SAGE open medical case reports
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