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Spreading depression

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https://www.readbyqxmd.com/read/27919958/dietary-flavonoids-luteolin-and-quercetin-suppressed-cancer-stem-cell-properties-and-metastatic-potential-of-isolated-prostate-cancer-cells
#1
Pei-Hsun Tsai, Chia-Hsiung Cheng, Chun-Yu Lin, Ying-Tang Huang, Lung-Ta Lee, Chithan C Kandaswami, Yo-Chuen Lin, Kevin Po-Hao Lee, Chin-Chun Hung, Jiuan-Jiuan Hwang, Ferng-Chun Ke, Geen-Dong Chang, Ming-Ting Lee
A highly invasive Du145-III subline was isolated by three successive passages of the parental Du145 prostate tumor cell line (Du145-P) through a Boyden chamber with matrigel-coated membrane support. Du145-III cells showed great invasion potential based on their increased ability to spread/migrate and enhanced expression/secretion of the matrix metalloproteinase 9 (MMP9). Du145-III cells exerted vasculogenic mimicry (VM) properties, reminiscent of endothelial cell characteristics and expressed elevated levels of cancer stem cell (CSC) markers, including Nanog, Sox2, CD44 and ABCG2 and ability to self-renew...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919923/clonality-increases-with-snow-depth-in-the-arctic-dwarf-shrub-empetrum-hermaphroditum
#2
Miriam J Bienau, R Lutz Eckstein, Annette Otte, Walter Durka
PREMISE OF THE STUDY: Vegetative reproduction and spread through clonal growth plays an important role in arctic-alpine ecosystems with short cool growing seasons. Local variation in winter snow accumulation leads to discrete habitat types that may provide divergent conditions for sexual and vegetative reproduction. Therefore, we studied variation in clonal structure of a dominant, evergreen, dwarf shrub (Empetrum nigrum s.l. with the two taxa E. nigrum L. s.s. and E. hermaphroditum Hagerup) along a snow cover gradient and compared clonal diversity and spatial genetic structure between habitats...
December 5, 2016: American Journal of Botany
https://www.readbyqxmd.com/read/27919769/transcriptomic-changes-in-rat-cortex-and-brainstem-after-cortical-spreading-depression-with-or-without-pre-treatment-with-migraine-prophylactic-drugs
#3
Cèlia Sintas, Noèlia Fernàndez-Castillo, Marta Vila-Pueyo, Patricia Pozo-Rosich, Alfons Macaya, Bru Cormand
: Migraine with aura is a subtype of migraine consisting of neurological disturbances that usually precede headache. Cortical spreading depression (CSD) is the likely pathophysiological correlate of the aura phase of migraine, found in common and rare forms of migraine, such as familial hemiplegic migraine (FHM). CSD is a depolarization wave that propagates across the cerebral gray matter transiently suppressing neuronal activity. Prophylactic treatments for migraine, such as topiramate (TPM) or valproate (VPA), reduce the number of CSD events...
December 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27919019/induction-of-calcitonin-gene-related-peptide-expression-in-rats-by-cortical-spreading-depression
#4
Yan Wang, Anne E Tye, Junli Zhao, Dongqing Ma, Ann C Raddant, Fan Bu, Benjamin L Spector, Nolan K Winslow, Minyan Wang, Andrew F Russo
OBJECTIVE: The neuropeptide calcitonin gene-related peptide (CGRP) has now been established as a key player in migraine. However, the mechanisms underlying the reported elevation of CGRP in the serum and cerebrospinal fluid of some migraineurs are not known. A candidate mechanism is cortical spreading depression (CSD), which is associated with migraine with aura and traumatic brain injury. The aim of this study was to investigate whether CGRP gene expression may be induced by experimental CSD in the rat cerebral cortex...
November 9, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27916934/immune-related-gene-expression-patterns-in-gpv-or-h9n2-infected-goose-spleens
#5
Shun Chen, Anqi Wang, Lipei Sun, Fei Liu, Mingshu Wang, Renyong Jia, Dekang Zhu, Mafeng Liu, Qiao Yang, Ying Wu, Kunfeng Sun, Xiaoyue Chen, Anchun Cheng
Goose parvovirus (GPV) and avian influenza virus subtype H9N2 are single-stranded DNA (ssDNA) and single-stranded RNA (ssRNA) viruses, respectively, both of which can spread in goslings and cause a significant economic loss. To explore the comprehensive transcriptome of GPV- or H9N2-infected goose spleens and to understand the immune responses induced by a DNA virus (GPV) or a RNA virus (H9N2), RNA-seq was performed on the spleens of goslings at the fifth day post infection. In the present study, 2604 and 2409 differentially expressed unigenes were identified in the GPV- and H9N2-infected groups, respectively...
December 1, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27873013/neonatal-l-glutamine-modulates-anxiety-like-behavior-cortical-spreading-depression-and-microglial-immunoreactivity-analysis-in-developing-rats-suckled-on-normal-size-and-large-size-litters
#6
Denise Sandrelly Cavalcanti de Lima, Elian da Silva Francisco, Cássia Borges Lima, Rubem Carlos Araújo Guedes
In mammals, L-glutamine (Gln) can alter the glutamate-Gln cycle and consequently brain excitability. Here, we investigated in developing rats the effect of treatment with different doses of Gln on anxiety-like behavior, cortical spreading depression (CSD), and microglial activation expressed as Iba1-immunoreactivity. Wistar rats were suckled in litters with 9 and 15 pups (groups L 9 and L 15; respectively, normal size- and large size litters). From postnatal days (P) 7-27, the animals received Gln per gavage (250, 500 or 750 mg/kg/day), or vehicle (water), or no treatment (naive)...
November 21, 2016: Amino Acids
https://www.readbyqxmd.com/read/27871229/-the-cango-lyec-project-healing-the-elephant-hiv-related-vulnerabilities-of-post-conflict-affected-populations-aged-13-49-years-living-in-three-mid-northern-uganda-districts
#7
Samuel S Malamba, Herbert Muyinda, Patricia M Spittal, John P Ekwaru, Noah Kiwanuka, Martin D Ogwang, Patrick Odong, Paul K Kitandwe, Achilles Katamba, Kate Jongbloed, Nelson K Sewankambo, Eugene Kinyanda, Alden Blair, Martin T Schechter
BACKGROUND: The protracted war between the Government of Uganda and the Lord's Resistance Army in Northern Uganda (1996-2006) resulted in widespread atrocities, destruction of health infrastructure and services, weakening the social and economic fabric of the affected populations, internal displacement and death. Despite grave concerns that increased spread of HIV/AIDS may be devastating to post conflict Northern Uganda, empirical epidemiological data describing the legacy of the war on HIV infection are scarce...
November 21, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27862906/characterization-of-pain-disability-and-psychological-burden-in-marfan-syndrome
#8
Traci J Speed, Vani A Mathur, Matthew Hand, Bryt Christensen, Paul D Sponseller, Kayode A Williams, Claudia M Campbell
The clinical manifestations of Marfan syndrome frequently cause pain. This study aimed to characterize pain in a cohort of adults with Marfan syndrome and investigate demographic, physical, and psychological factors associated with pain and pain-related disability. Two hundred and forty-five participants (73% female, 89% non-Hispanic white, 90% North American) completed an online questionnaire assessing clinical features of Marfan syndrome, pain severity, pain-related disability, physical and mental health, depressive symptoms, pain catastrophizing, and insomnia...
November 14, 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27853181/selective-sweep-on-human-amylase-genes-postdates-the-split-with-neanderthals
#9
Charlotte E Inchley, Cynthia D A Larbey, Nzar A A Shwan, Luca Pagani, Lauri Saag, Tiago Antão, Guy Jacobs, Georgi Hudjashov, Ene Metspalu, Mario Mitt, Christina A Eichstaedt, Boris Malyarchuk, Miroslava Derenko, Joseph Wee, Syafiq Abdullah, François-Xavier Ricaut, Maru Mormina, Reedik Mägi, Richard Villems, Mait Metspalu, Martin K Jones, John A L Armour, Toomas Kivisild
Humans have more copies of amylase genes than other primates. It is still poorly understood, however, when the copy number expansion occurred and whether its spread was enhanced by selection. Here we assess amylase copy numbers in a global sample of 480 high coverage genomes and find that regions flanking the amylase locus show notable depression of genetic diversity both in African and non-African populations. Analysis of genetic variation in these regions supports the model of an early selective sweep in the human lineage after the split of humans from Neanderthals which led to the fixation of multiple copies of AMY1 in place of a single copy...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27822187/cell-phone-addiction-a-review
#10
REVIEW
José De-Sola Gutiérrez, Fernando Rodríguez de Fonseca, Gabriel Rubio
We present a review of the studies that have been published about addiction to cell phones. We analyze the concept of cell-phone addiction as well as its prevalence, study methodologies, psychological features, and associated psychiatric comorbidities. Research in this field has generally evolved from a global view of the cell phone as a device to its analysis via applications and contents. The diversity of criteria and methodological approaches that have been used is notable, as is a certain lack of conceptual delimitation that has resulted in a broad spread of prevalent data...
2016: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/27806352/aging-cognitive-decline-and-hearing-loss-effects-of-auditory-rehabilitation-and-training-with-hearing-aids-and-cochlear-implants-on-cognitive-function-and-depression-among-older-adults
#11
Alessandro Castiglione, Alice Benatti, Carmelita Velardita, Diego Favaro, Elisa Padoan, Daniele Severi, Michela Pagliaro, Roberto Bovo, Antonino Vallesi, Carlo Gabelli, Alessandro Martini
A growing interest in cognitive effects associated with speech and hearing processes is spreading throughout the scientific community essentially guided by evidence that central and peripheral hearing loss is associated with cognitive decline. For the present research, 125 participants older than 65 years of age (105 with hearing impairment and 20 with normal hearing) were enrolled, divided into 6 groups according to their degree of hearing loss and assessed to determine the effects of the treatment applied...
2016: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/27803343/knee-pain-predicts-subsequent-shoulder-pain-and-the-association-is-mediated-by-leg-weakness-longitudinal-observational-data-from-the-osteoarthritis-initiative
#12
Laura L Laslett, Petr Otahal, Elizabeth M A Hensor, Sarah R Kingsbury, Philip G Conaghan
OBJECTIVE: To assess whether the "spread" of joint pain is related to pain-associated muscle loss in 1 joint leading to increased loading and subsequent pain in other joints. METHODS: Associations between persistent knee pain (pain in 1 or 2 knees over 0-3 years vs no persistent pain) and incident shoulder pain at Year 4 were examined in participants from the longitudinal National Institutes of Health Osteoarthritis Initiative. Associations were assessed using log multinomial modeling, adjusted for age, sex, body mass index, depression score, other lower limb pain, and baseline leg weakness (difficulty standing from a sitting position)...
November 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27774587/unique-ct-perfusion-imaging-in-a-case-of-handl-new-insight-into-handl-pathophysiology-and-vasomotor-principles-of-cortical-spreading-depression
#13
Matthew J Burke, Michael J Lamb, Marika Hohol, Christine Lay
BACKGROUND: The etiology of HaNDL is not known. Recent neuroimaging studies have suggested that there may be altered cerebrovascular blood flow during acute episodes. However, what exactly these vascular changes represent and how they may relate to the overall pathogenesis of HaNDL is uncertain. CASE: A 42-year-old, right-handed male, presented with acute aphasia and right arm weakness. Urgent CT/CT-angiogram were normal except for an incidental hypoplastic right anterior cerebral artery (ACA) A1 segment...
October 24, 2016: Headache
https://www.readbyqxmd.com/read/27770521/tonic-influence-of-neocortex-on-hippocampal-seizures
#14
E Saralidze, L Khuchua, I Kobaidze
The interaction between different brain structures could be crucial to predicting seizure occurrence, threshold and spread. Moreover, the sleep-wake cycle and electrical activity of brain structures in different phases of sleep could significantly affect the pattern and extent of seizure spread, and therefore the characteristics of epileptic activity. In this animal model using 15 Wistar rats, we show that the duration of hippocampal seizures, induced by electrical stimulation of the hippocampus, is significantly increased during slow sleep...
September 2016: Georgian Medical News
https://www.readbyqxmd.com/read/27756281/a-pragmatic-randomized-control-trial-and-realist-evaluation-on-the-implementation-and-effectiveness-of-an-internet-application-to-support-self-management-among-individuals-seeking-specialized-mental-health-care-a-study-protocol
#15
Jennifer M Hensel, Jay Shaw, Lianne Jeffs, Noah M Ivers, Laura Desveaux, Ashley Cohen, Payal Agarwal, Walter P Wodchis, Joshua Tepper, Darren Larsen, Anita McGahan, Peter Cram, Geetha Mukerji, Muhammad Mamdani, Rebecca Yang, Ivy Wong, Nike Onabajo, Trevor Jamieson, R Sacha Bhatia
BACKGROUND: Mental illness is a substantial and rising contributor to the global burden of disease. Access to and utilization of mental health care, however, is limited by structural barriers such as specialist availability, time, out-of-pocket costs, and attitudinal barriers including stigma. Innovative solutions like virtual care are rapidly entering the health care domain. The advancement and adoption of virtual care for mental health, however, often occurs in the absence of rigorous evaluation and adequate planning for sustainability and spread...
October 18, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27739943/letter-to-the-editor-cortical-spreading-depression
#16
Daniel San-Juan, Andres Jaramillo-Gonzalez, Roberto Diaz-Peregrino, Arturo Olivares Rivera, Edgar Santos
No abstract text is available yet for this article.
October 14, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27730322/effects-of-glia-in-a-triphasic-continuum-model-of-cortical-spreading-depression
#17
Rosemary O'Connell, Yoichiro Mori
Cortical spreading depression (SD) is a spreading disruption in brain ionic homeostasis during which neurons experience complete and prolonged depolarizations. SD is generally believed to be the physiological substrate of migraine aura and is associated with many other brain pathologies. Here, we perform simulations with a model of SD treating brain tissue as a triphasic continuum of neurons, glia and the extracellular space. A thermodynamically consistent incorporation of the major biophysical effects, including ionic electrodiffusion and osmotic water flow, allows for the computation of important physiological variables including the extracellular voltage (DC) shift...
October 2016: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/27725492/what-is-the-purpose-of-the-stress-check-program
#18
Norio Sugawara, Manabu Saito, Kazuhiko Nakamura
Since December 1, 2015, the Japanese government has required employers to conduct the Stress Check Program. The Ministry of Health, Labour and Welfare announced that this program should focus on the primary prevention of mental health problems. Although employers are obliged to perform screening for mental health problems and a physician's interview, employees are not mandated to participate in this program. Classical occupational health studies have accumulated evidence indicating that quantitative or qualitative workload is associated with mental health problems...
November 29, 2016: Journal of Occupational Health
https://www.readbyqxmd.com/read/27718435/suspected-total-spinal-in-patient-having-emergent-caesarean-section-a-case-report-and-literature-review
#19
H Virgin, E Oddby, J G Jakobsson
INTRODUCTION: Epidural analgesia is commonly used for management of pain during childbirth. Need for emergent Caesarean section e.g. because of signs of foetal distress or lack of progress is however not an uncommon event. In females having an established epidural; general anaesthesia, top-up of the epidural or putting a spinal are all possible options. Dosing of the spinal anaesthesia in females having epidural is a matter of discussion. PRESENTATION OF CASE: We describe a healthy 32 years, 0 para mother in gestation week 36 having labour epidural analgesia but due to foetal distress scheduled for an emergent Caesarean section category 2 that developed upper extremity weakness and respiratory depression after administration of standard dose high density bupivacaine/morphine/fentanyl intrathecal anaesthesia...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27714802/persistent-and-repetitive-visual-disturbances-in-migraine-a-review
#20
Christoph J Schankin, Michele Viana, Peter J Goadsby
Visual disturbances in migraineurs, such as visual aura, are typically episodic, that is, associated with the headache attack, and overlaid by head pain and other symptoms that impact the patient. In some patients, however, visual symptoms are dominant due to frequency (migraine aura status), duration (persistent migraine aura and other persistent positive visual phenomena), or complexity (visual snow syndrome). These syndromes are more rare and challenging to classify in clinical practice resulting in a lack of systematic studies on pathophysiology and treatment...
October 7, 2016: Headache
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