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Spreading depression

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https://www.readbyqxmd.com/read/29143156/social-distance-and-community-attitudes-towards-people-with-psycho-social-disabilities-in-uttarakhand-india
#1
K Mathias, M Kermode, I Goicolea, L Seefeldt, R Shidhaye, M San Sebastian
Stigma is an important contributor to the large treatment gap for people with mental and psycho-social disabilities (PPSD) in India. Social distance as assessed by willingness to engage in relationships with PPSD is a proxy measure of stigma and potential discrimination. In North India, investigations of community attitudes towards PPSD have been limited. To describe attitudes towards people with depression and psychosis, a community sample of 960 adults in Dehradun district, India from 30 randomised clusters, was surveyed using a validated tool to assess social distance, beliefs and attitudes related to mental illness...
November 15, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/29133662/a-tiny-tick-can-cause-a-big-health-problem
#2
Manuel John, M Raman, Keith Ryan
Ticks are tiny crawling bugs in the spider family that feed by sucking blood from animals. They are second only to mosquitoes as vectors of human disease, both infectious and toxic. Infected ticks spread over a hundred diseases, some of which are fatal if undetected. They spread the spirochete (which multiplies in the insect's gut) with a subsequent bite to the next host. We describe the only reported cases of peri ocular tick bite from India that presented to us within a span of 3 days and its management. Due suspicion and magnification of the lesions revealed the ticks which otherwise masqueraded as small skin tags/moles on gross examination...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29130510/heterogenous-migraine-aura-symptoms-correlate-with-visual-cortex-fmri-responses
#3
Nanna Arngrim, Anders Hougaard, Khazar Ahmadi, Mark Bitsch Vestergaard, Henrik Winther Schytz, Faisal Mohammad Amin, Henrik Bo Wiberg Larsson, Jes Olesen, Michael B Hoffmann, Messoud Ashina
OBJECTIVE: Migraine aura is sparsely studied due to the highly challenging task of capturing patients during aura. Cortical spreading depression (CSD) is likely the underlying phenomenon of aura. The possible correlation between the multifaceted phenomenology of aura symptoms and the effects of CSD on the brain has not been ascertained. METHODS: Five migraine patients were studied during various forms of aura symptoms induced by hypoxia, sham or physical exercise and photostimulation...
November 11, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29125056/monosodium-glutamate-and-treadmill-exercise-anxiety-like-behavior-and-spreading-depression-features-in-young-adult-rats
#4
Suênia Marcele Vitor-de-Lima, Larissa de Brito Medeiros, Regina de Deus Lira Benevides, Catarina Nicácio Dos Santos, Nahara Oliveira Lima da Silva, Rubem Carlos Araújo Guedes
OBJECTIVES: The route of administration is an important factor in determining the action of some drugs. We previously demonstrated that subcutaneous monosodium glutamate (MSG) accelerated cortical spreading depression (CSD) in the rat and that treadmill exercise attenuated this effect. This study evaluated whether other routes of administration exert the same action by testing orogastric (gavage) and topical cortical MSG administration in treadmill-exercised and sedentary rats. Additionally, in the orogastric treatment we tested anxiety-like behavior...
November 10, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29102127/transmission-of-african-swine-fever-virus-from-infected-pigs-by-direct-contact-and-aerosol-routes
#5
Ann Sofie Olesen, Louise Lohse, Anette Boklund, Tariq Halasa, Carmina Gallardo, Zygmunt Pejsak, Graham J Belsham, Thomas Bruun Rasmussen, Anette Bøtner
In 2014, African swine fever virus (ASFV) was introduced into the Baltic states and Poland. Since then, the disease has continued to spread within these regions, and recently, cases were reported in the Czech Republic and Romania. Currently, there is an increasing risk of ASFV introduction into Western Europe. Hence, there is an urgent need to assess current contingency plans. For this purpose, knowledge of modes-of-transmission and clinical outcome in pigs infected with new European ASFV strains is needed...
November 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29098136/the-effectiveness-of-internet-based-cognitive-behavioral-therapy-in-treatment-of-psychiatric-disorders
#6
REVIEW
Vikram Kumar, Yasar Sattar, Anan Bseiso, Sara Khan, Ian H Rutkofsky
This review article is an overview of the effectiveness of internet-based cognitive behavioral therapy (ICBT) in the treatment of psychiatric disorders. ICBT's effectiveness has been investigated in treating and managing conditions like depression, generalized anxiety disorder (GAD), panic disorder, obsessive compulsive disorder (OCD), post-traumatic stress disorder (PTSD), adjustment disorder, bipolar disorder, chronic pain, and phobias. ICBT's role in the treatment of medical conditions such as diabetes mellitus with comorbid psychiatric illnesses was also explored...
August 29, 2017: Curēus
https://www.readbyqxmd.com/read/29078029/constipation-is-not-associated-with-dat-dopaminergic-pathology-in-early-de-novo-patients-with-parkinson-s-disease
#7
Gennaro Pagano, Tayyabah Yousaf, Heather Wilson, Flavia Niccolini, Sotirios Polychronis, Kallol Ray Chaudhuri, Marios Politis
BACKGROUND: Constipation is a common non-motor symptom of Parkinson's disease. Deposition of α-synuclein inclusions that spread from the gut to the substantia nigra through the vagus nerve has been recently speculated as a pre-motor and early stage of Parkinson's disease. OBJECTIVE: To investigate whether constipation is associated with dopaminergic pathology at DAT SPECT in early de novo (untreated) Parkinson's disease patients. Our hypothesis is that constipation is associated with other signs of pre-motor Parkinson's disease and independent of DAT dopaminergic pathology...
October 27, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29073774/migraine-with-brainstem-aura-why-not-a-cortical-origin
#8
Geneviève Demarquay, Anne Ducros, Alexandra Montavont, François Mauguiere
Background Migraine with brainstem aura is defined as a migraine with aura including at least two of the following symptoms: dysarthria, vertigo, tinnitus, hypacusis, diplopia, ataxia and/or decreased level of consciousness. Aim The aim of this study is to review data coming from clinical observations and functional mapping that support the role of the cerebral cortex in the initiation of brainstem aura symptoms. Results Vertigo can result from a vestibular cortex dysfunction, while tinnitus and hypacusis can originate within the auditory cortex...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29063300/delayed-cerebral-ischemia-after-subarachnoid-hemorrhage-beyond-vasospasm-and-towards-a-multifactorial-pathophysiology
#9
REVIEW
Joseph R Geraghty, Fernando D Testai
PURPOSE OF REVIEW: Delayed cerebral ischemia (DCI) is common after subarachnoid hemorrhage (SAH) and represents a significant cause of poor functional outcome. DCI was mainly thought to be caused by cerebral vasospasm; however, recent clinical trials have been unable to confirm this hypothesis. Studies in humans and animal models have since supported the notion of a multifactorial pathophysiology of DCI. This review summarizes some of the main mechanisms under investigation including cerebral vascular dysregulation, microthrombosis, cortical spreading depolarizations, and neuroinflammation...
October 23, 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29041816/enhanced-susceptibility-to-cortical-spreading-depression-in-two-types-of-na-k-atpase-%C3%AE-2-subunit-deficient-mice-as-a-model-of-familial-hemiplegic-migraine-2
#10
Miyuki Unekawa, Keiko Ikeda, Yutaka Tomita, Kiyoshi Kawakami, Norihiro Suzuki
Background Patients with familial hemiplegic migraine type 2 (FHM2) have a mutated ATP1A2 gene (encoding Na(+),K(+)-ATPase α2 subunit) and show prolonged migraine aura. Cortical spreading depression (CSD), which involves mass depolarization of neurons and astrocytes that propagates slowly through the gray matter, is profoundly related to aura. Methods In two types of Atp1a2-defective heterozygous mice, Atp1a2(tm1Kwk) (C-KO) and Atp1a2(tm2Kwk) (N-KO), the sensitivity and responsiveness to CSD were examined under urethane anesthesia...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29034461/the-migraine-attack-as-a-homeostatic-neuroprotective-response-to-brain-oxidative-stress-preliminary-evidence-for-a-theory
#11
Jonathan M Borkum
BACKGROUND: Previous research has suggested that migraineurs show higher levels of oxidative stress (lipid peroxides) between migraine attacks and that migraine triggers may further increase brain oxidative stress. Oxidative stress is transduced into a neural signal by the TRPA1 ion channel on meningeal pain receptors, eliciting neurogenic inflammation, a key event in migraine. Thus, migraines may be a response to brain oxidative stress. RESULTS: In this article, a number of migraine components are considered: cortical spreading depression, platelet activation, plasma protein extravasation, endothelial nitric oxide synthesis, and the release of serotonin, substance P, calcitonin gene-related peptide, and brain-derived neurotrophic factor...
October 16, 2017: Headache
https://www.readbyqxmd.com/read/28992033/veal-calf-health-on-the-day-of-arrival-at-growers-in-ohio
#12
J Pempek, D Trearchis, M Masterson, G Habing, K Proudfoot
Veal calves are at high risk for disease and mortality in early life. Calves face a number of stressors before arriving at the grower, including long transport times, which may contribute to poor health. Our objectives were to 1) estimate the prevalence of poor health outcomes in veal calves on arrival at growers in Ohio; 2) determine risk factors for health outcomes on arrival, including BW and auction site (spread across 5 states in the Northeastern United States); and 3) determine if health outcomes on arrival predict early mortality...
September 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28989805/migraine-and-stroke
#13
REVIEW
Yonghua Zhang, Aasheeta Parikh, Shuo Qian
Migraines are generally considered a relatively benign neurological condition. However, research has shown an association between migraines and stroke, and especially between migraine with aura and ischaemic stroke. Patients can also suffer from migrainous infarction, a subset of ischaemic stroke that often occurs in the posterior circulation of younger women. The exact pathogenesis of migrainous infarct is not known, but it is theorised that the duration and local neuronal energy level from cortical spreading depression may be a key factor...
September 2017: Stroke and Vascular Neurology
https://www.readbyqxmd.com/read/28989740/spreading-of-components-of-mood-in-adolescent-social-networks
#14
Robert W Eyre, Thomas House, Edward M Hill, Frances E Griffiths
Recent research has provided evidence that mood can spread over social networks via social contagion, but that, in seeming contradiction to this, depression does not. Here, we investigate whether there is evidence for the individual components of mood (such as appetite, tiredness and sleep) spreading through US adolescent friendship networks while adjusting for confounding by modelling the transition probabilities of changing mood state over time. We find that having more friends with worse mood is associated with a higher probability of an adolescent worsening in mood and a lower probability of improving, and vice versa for friends with better mood, for the overwhelming majority of mood components...
September 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28981616/spreading-depression-promotes-astrocytic-calcium-oscillations-and-enhances-gliotransmission-to-hippocampal-neurons
#15
Dong Chuan Wu, Rita Yu-Tzu Chen, Ting-Chun Cheng, Yao-Chang Chiang, Mei-Lin Shen, Li-Ling Hsu, Ning Zhou
Spreading depression (SD) is a pathophysiological phenomenon characterized by propagating waves of profound neuronal and glial depolarization in central nervous system gray matter. Although SD is primarily mediated by neurons with a subsequent astrocytic response, it remains unclear how astrocytic activity is modulated after SD and how altered astrocyte signaling contribute to neuronal excitability. Here, we report that after the concurrent Ca2+ wave, SD enhanced astrocytic activity by promoting a secondary period of Ca2+ oscillations...
August 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28977010/clinicopathological-features-of-laterally-spreading-colorectal-tumors-and-their-association-with-advanced-histology-and-invasiveness-an-experience-from-honam-province-of-south-korea-a-honam-association-for-the-study-of-intestinal-diseases-hasid
#16
Dae-Seong Myung, Sun-Seog Kweon, Jun Lee, Ik-Sang Shin, Sang-Wook Kim, Geom-Seog Seo, Hyun-Soo Kim, Young-Eun Joo
BACKGROUND AND AIMS: Laterally spreading colorectal tumors (LSTs) are divided into four subtypes, including homogenous (HG), nodular mixed (NM), flat elevated (FE), and pseudo-depressed (PD), based on their different endoscopic morphologies. The aim of this study was to investigate the clinicopathological significance of LST subtypes and their association with advanced histology. METHODS: We investigated the medical records of consecutive patients with LST who initially underwent endoscopic resection at five university hospitals in Honam province of South Korea between January 2012 and December 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28972120/fremanezumab-a-humanized-monoclonal-anti-cgrp-antibody-inhibits-thinly-myelinated-a%C3%AE-but-not-unmyelinated-c-meningeal-nociceptors
#17
Agustin Melo-Carrillo, Andrew M Strassman, Rony-Reuven Nir, Aaron J Schain, Rodrigo Noseda, Jennifer Stratton, Rami Burstein
Calcitonin gene-related peptide (CGRP), the most abundant neuropeptide in primary afferent sensory neurons, is strongly implicated in the pathophysiology of migraine headache, but its role in migraine is still equivocal. As a new approach to migraine treatment, humanized anti-CGRP monoclonal antibodies (CGRP-mAbs) were developed to reduce the availability of CGRP, and were found effective in reducing the frequency of chronic and episodic migraine. We recently tested the effect of fremanezumab (TEV-48125), a CGRP-mAb, on the activity of second-order trigeminovascular dorsal horn neurons that receive peripheral input from the cranial dura, and found a selective inhibition of high-threshold but not wide-dynamic range class of neurons...
November 1, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28971699/cgrp-receptor-antagonist-mk-8825-attenuates-cortical-spreading-depression-induced-pain-behavior
#18
Aslı Filiz, Nermin Tepe, Sajedeh Eftekhari, H Evren Boran, Ergin Dilekoz, Lars Edvinsson, Hayrunnisa Bolay
Background and objective The present study aimed to investigate the effects of selective calcitonin gene related peptide (CGRP) receptor antagonist (MK-8825) on cortical spreading depression (CSD) induced pain behavior and anxiety in freely-moving rats, and neuronal activation in the correlated anatomical regions. Methods CSD was induced while keeping all meningeal layers and BBB intact and MK-8825 was administered in two different doses. Regional cerebral blood flow (rCBF), arterial pressure and DC shift were recorded...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28971436/long-term-survival-of-women-with-breast-cancer-overview-supportive-care-needs-assessment-instruments
#19
Parthenopi Ktistaki, Nephely Alevra, Maria Voulgari
INTRODUCTION: Worldwide, breast cancer is the fifth leading cause of cancer death (after lung, stomach, liver and colon cancer), while among women it is first on the list. The incidence of breast cancer has made a dramatic increase since 1970 which is partly interpreted by the modern western life standards. The expected risk of breast cancer throughout a lifespan of an average is 1 in 11 women. The five-year survival rates for breast cancer are at 80% if it has not spread, and only at 40% for the metastatic type of cancer...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28969902/production-of-verbs-related-to-body-movement-in-amyotrophic-lateral-sclerosis-als-and-parkinson-s-disease-pd
#20
Katheryn A Q Cousins, Sharon Ash, Murray Grossman
Theories of grounded cognition propose that action verb knowledge relies in part on motor processing regions, including premotor cortex. Accordingly, impaired action verb knowledge in patients with amyotrophic lateral sclerosis (ALS) and Parkinson's Disease (PD) is thought to be due to motor system degeneration. Upper motor neuron disease in ALS degrades the motor cortex and related pyramidal motor system, while disease in PD is centered in the basal ganglia and can spread to frontostriatal areas that are important to language functioning...
September 8, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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