keyword
MENU ▼
Read by QxMD icon Read
search

Spreading depression

keyword
https://www.readbyqxmd.com/read/28891432/neonatal-treatment-with-ovarian-hormones-and-suckling-among-distinct-litter-sizes-differential-effects-on-recognition-memory-and-spreading-depression-at-adulthood
#1
Noranege Epifânio Accioly, Rubem Carlos Araújo Guedes
OBJECTIVES: Ovarian hormones (OH) and early malnutrition may affect the developing brain, with repercussions on behavioral and excitability-dependent processes. However, the possible synergistic effects of both factors have not been analyzed. In this study, we investigated the effect of treatment in early life with OH and suckling among distinct litter sizes on recognition memory, anxiety behavior, and the excitability-dependent phenomenon known as cortical spreading depression (CSD)...
September 10, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28884925/wide-spread-transcriptional-alternations-in-oligodendrocytes-in-the-adult-mouse-brain-following-chronic-stress
#2
Jia Liu, Karen Dietz, Georgia E Hodes, Scott J Russo, Patrizia Casaccia
Emerging evidence shows that oligodendrogenesis and myelination are highly responsive to behavioral experience, including physical activity and social experience. This form of myelin plasticity is being increasingly appreciated and examined in the prefrontal cortex (PFC), a critical brain region involved in complex emotional and cognitive behavior. However, it remains unclear whether myelination in other brain regions is affected by behavioral experience. Here we report that exposure to four weeks of chronic variable stress induced anxiety- and depressive-like behavior in male adult mice...
September 8, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28874226/an-updated-review-of-avian-origin-tembusu-virus-a-newly-emerging-avian-flavivirus
#3
Wei Zhang, Shun Chen, Suresh Mahalingam, Mingshu Wang, Anchun Cheng
Tembusu virus (TMUV, genus Flavivirus, family Flaviviridae) was first isolated in 1955 from Culex tritaeniorhynchus mosquitoes in Kuala Lumpur, Malaysia. In April 2010, duck TMUV was first identified as the causative agent of egg-drop syndrome, characterized by a substantial decrease in egg laying and depression, growth retardation and neurological signs or death in infected egg-laying and breeder ducks, in the People's Republic of China. Since 2010, duck TMUV has spread to most of the duck-producing regions in China, including many of the coastal provinces, neighbouring regions and certain Southeast Asia areas (i...
September 6, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28865445/distinctive-subgroups-derived-by-cluster-analysis-based-on-pain-and-psychological-symptoms-in-swedish-older-adults-with-chronic-pain-a-population-study-pains65
#4
Britt Larsson, Björn Gerdle, Lars Bernfort, Lars-Åke Levin, Elena Dragioti
BACKGROUND: Improved knowledge based on clinical features of chronic pain in older adults would be valuable in terms of patient-orientated approaches and would provide support for health care systems in optimizing health care resources. This study identifies subgroups based on pain and psychological symptoms among Swedish older adults in the general population and compares derived subgroups with respect to socio-demographics, health aspects, and health care costs. METHODS: This cross-sectional study uses data collected from four registers and one survey...
September 2, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28864364/role-of-astrocyte-connexin-hemichannels-in-cortical-spreading-depression
#5
REVIEW
Maximiliano Rovegno, Juan C Sáez
Cortical spreading depression (CSD) is an intriguing phenomenon consisting of massive slow brain depolarizations that affects neurons and glial cells. It has been recognized since 1944, but its pathogenesis has only been uncovered during the last decade. Acute brain injuries can be further complicated by CSD in more than 50% of severe cases. This phenomenon is repetitive and produces a metabolic overload that increments secondary damage. Propagation of CSD is known to be linked to excitotoxicity, but the mechanisms associated with its initiation remain less understood...
August 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28843078/impact-of-early-and-recent-stress-on-white-matter-microstructure-in-major-depressive-disorder
#6
Poletti Sara, Aggio Veronica, Brioschi Silvia, Bollettini Irene, Falini Andrea, Colombo Cristina, Benedetti Francesco
BACKGROUND: Major Depressive Disorder (MDD) is a worldwide-spread pathology, characterized by lifetime-recurrent episodes. Adverse childhood experiences (ACE) increase the lifetime risk of developing depression and affect the structure of the brain. Recent stressful events (RSE) can trigger the onset of depressive episodes, and affect grey matter volume. The aim of our study is to analyse the effect of both early and recent stress events on white matter microstructure in MDD patients and healthy volunteers...
August 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28842982/novel-therapeutic-targets-against-spreading-depression
#7
REVIEW
Shih-Pin Chen, Cenk Ayata
Migraine is among the most prevalent and disabling neurological diseases in the world. Cortical spreading depression (SD) is an intense wave of neuronal and glial depolarization underlying migraine aura, and a headache trigger, which has been used as an experimental platform for drug screening in migraine. Here, we provide an overview of novel therapeutic targets that show promise to suppress SD, such as acid-sensing ion channels, casein kinase Iδ, P2X7-pannexin 1 complex, and neuromodulation, and outline the experimental models and essential quality measures for rigorous and reproducible efficacy testing...
August 26, 2017: Headache
https://www.readbyqxmd.com/read/28806111/-effectiveness-of-mindfulness-based-cancer-recovery-mbcr-program-among-hungarian-cancer-patients
#8
Magda Rohánszky, Károly Berényi, Dóra Fridrik, Henriette Pusztafalvi
INTRODUCTION AND AIM: Employment of mindfulness-based programs and techniques in the treatment of cancer patients have spread exponentially in the past decade. A large number of studies have proved the effectiveness of the program in the reduction of stress symptoms, depression and anxiety, and the improvement of sleep and mood patterns. The present study was done at Firebird Foundation and examines the effectiveness of the complex, MBCR (mindfulness-based cancer recovery)-based psycho-social intervention in the treatment of cancer patients...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28776303/premotor-diagnosis-of-parkinson-s-disease
#9
REVIEW
Heinz Reichmann
Typical Parkinsonian symptoms consist of bradykinesia plus rigidity and/or resting tremor. Some time later postural instability occurs. Pre-motor symptoms such as hyposmia, constipation, REM sleep behavior disorder and depression may antecede these motor symptoms for years. It would be ideal, if we had a biomarker which would allow to predict who with one or two of these pre-motor symptoms will develop the movement disorder Parkinson's disease (PD). Thus, it is interesting to learn that biopsies of the submandibular gland or colon biopsies may be a means to predict PD, if there is a high amout of abnormally folded alpha-synuclein and phosphorylated alpha-synuclein...
August 3, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28770071/dampening-of-population-cycles-in-voles-affects-small-mammal-community-structure-decreases-diversity-and-increases-prevalence-of-a-zoonotic-disease
#10
Frauke Ecke, David G Angeler, Magnus Magnusson, Hussein Khalil, Birger Hörnfeldt
Long-term decline and depression of density in cyclic small rodents is a recent widespread phenomenon. These observed changes at the population level might have cascading effects at the ecosystem level. Here, we assessed relationships between changing boreal landscapes and biodiversity changes of small mammal communities. We also inferred potential effects of observed community changes for increased transmission risk of Puumala virus (PUUV) spread, causing the zoonotic disease nephropatica epidemica in humans...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28751192/evidence-of-an-inverse-correlation-between-serotonergic-activity-and-spreading-depression-propagation-in-the-rat-cortex
#11
Rubem Carlos Araújo Guedes, Maria das Graças Rodrigues de Araújo, Taciana Cristovam Verçosa, Francisca Martins Bion, Andrea Lima de Sá, Antônio Pereira, Ricardo Abadie-Guedes
Various neurological and psychiatric diseases lead to alterations in cortical serotonergic activity as one of their underlying processes. However, the electrophysiological implication of changes in serotonergic activity remains a matter of investigation. In this study, we investigated whether brain serotonergic activity influences the excitability-related phenomenon known as cortical spreading depression (CSD). CSD parameters (propagation velocity, and amplitude and duration of the DC-shift) was evaluated in rats that received two treatments that increased cortical serotonergic activity, electrical stimulation of the raphe nuclei and subcutaneous injection of a selective serotonin reuptake inhibitor, sumatriptan...
October 1, 2017: Brain Research
https://www.readbyqxmd.com/read/28750590/initiation-of-spreading-depression-by-synaptic-and-network-hyperactivity-insights-into-trigger-mechanisms-of-migraine-aura
#12
Lyudmila V Vinogradova
Background Cortical spreading depression (SD) is thought to underlie migraine aura but mechanisms of triggering SD in the structurally normal, well-nourished cortex of migraine patients remain unknown. Synaptic and network dysfunctions appear to underlie episodic neurological disorders, including migraine. The narrative review summarizes old and recent experimental evidence for triggering SD by synaptic/network mechanisms and discusses the relevance of the data to migraine pathogenesis. Our hypothesis is that under some conditions synaptic/network hyperactivity may reliably ignite SD, and this mechanism may underlie triggering migraine aura in patients...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28719143/osteoporotic-vertebral-fracture-prevalence-varies-widely-between-qualitative-and-quantitative-radiological-assessment-methods-the-rotterdam-study
#13
Ling Oei, Fjorda Koromani, Stephan J Breda, John T Schousboe, Emma M Clark, Joyce Bj van Meurs, M Arfan Ikram, Jan H Waarsing, Frank Ja van Rooij, Maria C Zillikens, Gabriel P Krestin, Edwin Hg Oei, Fernando Rivadeneira
Accurate diagnosis of vertebral osteoporotic fractures is crucial for the identification of individuals at high risk of future fractures. Different methods for radiological assessment of vertebral fractures exist, but a gold standard is lacking. The aim of our study was to estimate statistical measures of agreement and prevalence of osteoporotic vertebral fractures in the population-based Rotterdam Study, across two assessment methods. The quantitative morphometry assisted by SpineAnalyzer® (QM SA) method evaluates vertebral height loss that affects vertebral shape whereas the algorithm-based qualitative (ABQ) method judges endplate integrity and includes guidelines for the differentiation of vertebral fracture and nonfracture deformities...
July 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28689388/osteoblast-and-bacterial-culture-from-cryopreserved-skull-flap-after-craniectomy-laboratory-study
#14
Tack Geun Cho, Suk Hyung Kang, Yong Jun Cho, Hyuk Jai Choi, Jin Pyeong Jeon, Jin Seo Yang
OBJECTIVE: Cranioplasty using a cryopreserved skull flap is a wide spread practice. The most well-known complications of cranioplasty are postoperative surgical infections and bone flap resorption. In order to find biological evidence of cryopreserved cranioplasty, we investigated microorganism contamination of cryopreserved skulls and cultured osteoblasts from cryopreserved skulls. METHODS: Cryopreserved skull flaps of expired patients stored in a bone bank were used...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28688801/new-onset-hemodialysis-related-headache-presenting-as-migraine-aura
#15
Domenico Chirchiglia, Michele Andreucci, Attilio Della Torre, Serena Marianna Lavano, Pasquale Chirchiglia, Angelo Lavano
Hemodialysis headache (HDH) is an infrequent new-onset symptom, occurring mainly in old uremic patients. Type of pain is nonspecific, occurs during hemodialysis treatment, assuming features similar to tension-type headache and representing a problem, also as regards the therapy to be taken. International Headache Society (IHS) has placed this form of headache among the headaches disorders of homeostasis. We found a case of new-onset HDH in old uremic man, presenting with migraine aura features. A similar case has not been reported in literature, placing us some questions: why and how does this happen? What are the mechanisms involved? Role of trigeminal-vascular system and cortical spreading depression as regards the aura could be considered, through the activation of neuroinflammatory events, lastly causing migraine aura...
June 29, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28667198/consequences-of-maternal-morbidity-on-health-related-functioning-a-systematic-scoping-review
#16
Kazuyo Machiyama, Atsumi Hirose, Jenny A Cresswell, Maria Barreix, Doris Chou, Nenad Kostanjsek, Lale Say, Véronique Filippi
OBJECTIVES: To assess the scope of the published literature on the consequences of maternal morbidity on health-related functioning at the global level and identify key substantive findings as well as research and methodological gaps. METHODS: We searched for articles published between 2005 and 2014 using Medline, Embase, Popline, CINAHL Plus and three regional bibliographic databases in January 2015. DESIGN: Systematic scoping review PRIMARY OUTCOME: Health-related functioning RESULTS: After screening 17 706 studies, 136 articles were identified for inclusion...
June 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28652996/mitochondrial-stress-and-activation-of-pi3k-and-akt-survival-pathway-in-bladder-ischemia
#17
Jing-Hua Yang, Mike B Siroky, Subbarao V Yalla, Kazem M Azadzoi
PURPOSE: Detrusor overactivity contributes to bothersome constellation of lower urinary tract symptoms (LUTS) in men and women as they age. However, the underlying mechanisms of non-obstructive detrusor overactivity and LUTS remain largely unknown. Growing evidence suggests that ischemia may be an independent factor in the development of non-obstructive bladder dysfunction. Our goal was to determine the effects of ischemia on detrusor function and voiding behavior and define redox-mediated cellular stress and cell survival signaling in the ischemic bladder...
2017: Research and Reports in Urology
https://www.readbyqxmd.com/read/28647288/gap-junctions-pannexins-and-pain
#18
REVIEW
David C Spray, Menachem Hanani
Enhanced expression and function of gap junctions and pannexin (Panx) channels has been associated with both peripheral and central mechanisms of pain sensitization. At the level of the sensory ganglia, evidence includes augmented gap junction and pannexin1 expression in glial cells and neurons in inflammatory and neuropathic pain models and increased synchrony and enhanced cross-excitation among sensory neurons by gap junction-mediated coupling. In spinal cord and in suprapinal areas, evidence is largely limited to increased expression of relevant proteins, although in several rodent pain models, hypersensitivity is reduced by treatment with gap junction/Panx1 channel blocking compounds...
June 21, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28642283/selective-inhibition-of-trigeminovascular-neurons-by-fremanezumab-a-humanized-monoclonal-anti-cgrp-antibody
#19
Agustin Melo-Carrillo, Rodrigo Noseda, Rony Nir, Aaron J Schain, Jennifer Stratton, Andrew M Strassman, Rami Burstein
A large body of evidence supports an important role for calcitonin gene-related peptide (CGRP) in migraine pathophysiology. This evidence gave rise to a global effort to develop a new generation of therapeutics that inhibit the interaction of CGRP with its receptor in migraineurs. Recently, a new class of such drugs, humanized anti-CGRP monoclonal antibodies (CGRP-mAbs), were found to be effective in reducing the frequency of migraine. The purpose of this study was to better understand how the CGRP-mAb fremanezumab (TEV-48125) modulates meningeal sensory pathways...
July 26, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28635347/ketamine-and-international-regulations
#20
Yanhui Liao, Yi-Lang Tang, Wei Hao
BACKGROUND: Ketamine is an anesthetic commonly used in low-income countries and has recently been shown to be effective for treatment-resistant depression. However, the illicit manufacturing, trafficking, and nonmedical use of ketamine are increasing globally, and its illicit use poses major public health challenges in many countries. OBJECTIVES: To review the nonmedical use of ketamine in selected countries and its regulatory control. METHODS: We conducted a review of literature identified from searches of the China National Knowledge Infrastructure (CNKI) (1979-2016) and PubMed databases, supplemented by additional references identified by the authors...
September 2017: American Journal of Drug and Alcohol Abuse
keyword
keyword
24248
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"