نتایج جستجو برای: cortical spreading depression

تعداد نتایج: 270778  

Journal: :Bioresource technology 2013
Micaela A R Soares Margarida M J Quina Rosa M Quinta-Ferreira

Industrial eggshell waste (ES) is classified as an animal by-product not intended to human consumption. For reducing pathogen spreading risk due to soil incorporation of ES, sanitation by composting is a pre-treatment option. This work aims to evaluate eggshell waste recycling in self-heating composting reactors and investigate ES effect on process evolution and end product quality. Potato peel...

Journal: :Science 2012
B W Denevi D T Blewett D L Buczkowski F Capaccioni M T Capria M C De Sanctis W B Garry R W Gaskell L Le Corre J-Y Li S Marchi T J McCoy A Nathues D P O'Brien N E Petro C M Pieters F Preusker C A Raymond V Reddy C T Russell P Schenk J E C Scully J M Sunshine F Tosi D A Williams D Wyrick

We investigated the origin of unusual pitted terrain on asteroid Vesta, revealed in images from the Dawn spacecraft. Pitted terrain is characterized by irregular rimless depressions found in and around several impact craters, with a distinct morphology not observed on other airless bodies. Similar terrain is associated with numerous martian craters, where pits are thought to form through degass...

Journal: :Physiological research 2002
T Mazel F Richter L Vargová E Syková

Changes in extracellular space (ECS) diffusion parameters, DC potentials and extracellular potassium concentration were studied during single and repeated cortical spreading depressions (SD) in 13-15 (P13-15), 21 (P21) and 90-day-old (adult) Wistar rats. The real-time iontophoretic method using tetramethylammonium (TMA+)-selective microelectrodes was employed to measure three ECS parameters in ...

Journal: :Stroke 2014
Wai Kwong Tang Yangkun Chen Huajun Liang Winnie Chiu Wing Chu Vincent Chung Tong Mok Gabor Sandor Ungvari Ka Sing Wong

BACKGROUND AND PURPOSE Cerebral microbleeds (CMBs) are common in stroke survivors and community-dwelling elderly. The clinical significance of CMBs in the outcome of poststroke depression (PSD) is unknown. This study examined the association between the 1-year outcome of PSD and CMBs. METHODS The study population comprised 774 Chinese patients with acute ischemic stroke who were admitted to t...

Journal: :Journal of neurophysiology 2016
L Becerra J Bishop G Barmettler Y Xie E Navratilova F Porreca D Borsook

A number of drugs, including triptans, promote migraine chronification in susceptible individuals. In rats, a period of triptan administration over 7 days can produce "latent sensitization" (14 days after discontinuation of drug) demonstrated as enhanced sensitivity to presumed migraine triggers such as environmental stress and lowered threshold for electrically induced cortical spreading depre...

2014
Bing Li Shangbin Chen Pengcheng Li Qingming Luo Hui Gong

Cortical spreading depression (CSD) is a pathophysiological phenomenon, which underlies some neurological disorders, such as migraine and stroke, but its mechanisms are still not completely understood. One of the striking facts is that the spatiotemporal evolution of CSD wave is varying. Observations in experiments reveal that a CSD wave may propagate through the entire cortex, or just bypass s...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2010
Xichun Zhang Dan Levy Rodrigo Noseda Vanessa Kainz Moshe Jakubowski Rami Burstein

Attacks of migraine with aura represent a phenomenon in which abnormal neuronal activity in the cortex produces sensory disturbances (aura) some 20-40 min before the onset of headache. The purpose of this study was to determine whether cortical spreading depression (CSD)--an event believed to underlie visual aura--can give rise to activation of nociceptors that innervate the meninges--an event ...

Journal: :Stroke 2011
Jing Fang Weihong Yan Guo-Xin Jiang Wei Li Qi Cheng

BACKGROUND AND PURPOSE We sought to compare the distribution of the serotonin transporter gene SLC6A4 polymorphism between depressed and nondepressed poststroke patients. METHODS Patients with cerebral stroke admitted to hospital during a 1-year period were enrolled in a 1:1 case-control study. All cases and controls were genotyped for polymorphism of the serotonin transporter-linked promoter...

Journal: :Neurology 2008
Donna T Chen

1602 Cobblestone-like brain dysgenesis and altered glycosylation in congenital cutis laxa, Debré type L. Van Maldergem, M. Yuksel-Apak, H. Kayserili, E. Seemanova, S. Giurgea, L. Basel-Vanagaite, E. Leao-Teles, J. Vigneron, M. Foulon, M. Greally, J. Jaeken, S. Mundlos, and W.B. Dobyns 1609 Is there a link between alertness and fatigue in patients with traumatic brain injury? G. Chaumet, M.-A. Q...

Journal: :Continuum 2012
Thomas N Ward

PURPOSE OF REVIEW This article describes current knowledge regarding headache, especially migraine, and includes information on genetics, anatomy, pathophysiology, and pharmacology in order to demonstrate their relevance to clinical phenomenology. RECENT FINDINGS Animal models show that drugs effective in migraine prevention may work by raising the threshold for initiating cortical spreading ...

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