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https://www.readbyqxmd.com/read/28087764/accumulation-of-polyribosomes-in-dendritic-spine-heads-but-not-bases-and-necks-during-memory-consolidation-depends-on-cap-dependent-translation-initiation
#1
Linnaea E Ostroff, Benjamin Botsford, Sofya Gindina, Kiriana K Cowansage, Joseph E LeDoux, Eric Klann, Charles Hoeffer
: Translation in dendrites is believed to support synaptic changes during memory consolidation. Although translational control mechanisms are fundamental mediators of memory, little is known about their role in local translation. We previously found that polyribosomes accumulate in dendritic spines of the adult rat lateral amygdala (LA) during consolidation of aversive Pavlovian conditioning, and that this memory requires cap-dependent initiation, a primary point of translational control in eukaryotic cells...
January 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28087591/clinical-trials-in-antineutrophil-cytoplasmic-antibody-associated-vasculitis-what-we-have-learnt-so-far-and-what-we-still-have-to-learn
#2
Divi Cornec, Emilie Cornec-Le Gall, Ulrich Specks
The prognosis of the antineutrophil cytoplasmic antibody associated vasculitides (AAV), microscopic polyangiitis (MPA), granulomatosis with polyangiitis (GPA) and eosinophilic GPA (EGPA), has been fundamentally improved over the last five decades by the use of glucocorticoids and immunosuppressants, turning them from consistently fatal diseases into chronic conditions. The long-term course is now largely determined by the frequency of disease flares and by accruing damage caused by disease activity and treatment-related comorbidities...
January 12, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28087337/tunicamycin-impairs-olfactory-learning-and-synaptic-plasticity-in-the-olfactory-bulb
#3
Jia Tong, Fumino Okutani, Yoshihiro Murata, Mustuo Taniguchi, Toshiharu Namba, Yu-Jie Wang, Hideto Kaba
Tunicamycin (TM) induces endoplasmic reticulum (ER) stress and inhibits N-glycosylation in cells. ER stress is associated with neuronal death in neurodegenerative disorders, such as Parkinson's disease and Alzheimer's disease, and most patients complain of the impairment of olfactory recognition. Here we examined the effects of TM on aversive olfactory learning and the underlying synaptic plasticity in the main olfactory bulb (MOB). Behavioral experiments demonstrated that the intrabulbar infusion of TM disabled aversive olfactory learning without affecting short-term memory...
January 10, 2017: Neuroscience
https://www.readbyqxmd.com/read/28087280/increased-homocysteine-levels-impair-reference-memory-and-reduce-cortical-levels-of-acetylcholine-in-a-mouse-model-of-vascular-cognitive-impairment
#4
Kevin Dam, Martina Füchtemeier, Tracy D Farr, Philipp Boehm-Sturm, Marco Foddis, Ulrich Dirnagl, Olga Malysheva, Marie A Caudill, Nafisa M Jadavji
Folates are B-vitamins that are vital for normal brain function. Deficiencies in folates either genetic (methylenetetrahydrofolate reductase, MTHFR) or dietary intake of folic acid result in elevated levels of homocysteine. Clinical studies have shown that elevated levels of homocysteine (Hcy) may be associated with the development of dementia, however this link remains unclear. The purpose of this study was to evaluate the impact of increased Hcy levels on a mouse model of vascular cognitive impairment (VCI) produced by chronic hypoperfusion...
January 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28086982/reproductive-factors-and-the-risk-of-triple-negative-breast-cancer-in-white-women-and-african-american-women-a-pooled-analysis
#5
Huiyan Ma, Giske Ursin, Xinxin Xu, Eunjung Lee, Kayo Togawa, Lei Duan, Yani Lu, Kathleen E Malone, Polly A Marchbanks, Jill A McDonald, Michael S Simon, Suzanne G Folger, Jane Sullivan-Halley, Dennis M Deapen, Michael F Press, Leslie Bernstein
BACKGROUND: Early age at menarche, nulliparity, late age at first completed pregnancy, and never having breastfed, are established breast cancer risk factors. However, among breast cancer subtypes, it remains unclear whether all of these are risk factors for triple-negative breast cancer (TNBC). METHODS: We evaluated the associations of these reproductive factors with TNBC, in 2658 patients with breast cancer (including 554 with TNBC) and 2448 controls aged 20-64 years, who participated in one of the three population-based case-control studies: the Women's Contraceptive and Reproductive Experiences Study, the Women's Breast Carcinoma in situ Study, or the Women's Learning the Influence of Family and Environment Study...
January 13, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28086875/learning-global-health-a-pilot-study-of-an-online-collaborative-intercultural-peer-group-activity-involving-medical-students-in-australia-and-indonesia
#6
Mark Ambrose, Linda Murray, Nicholas E Handoyo, Deif Tunggal, Nick Cooling
BACKGROUND: There is limited research to inform effective pedagogies for teaching global health to undergraduate medical students. Theoretically, using a combination of teaching pedagogies typically used in 'international classrooms' may prove to be an effective way of learning global health. This pilot study aimed to explore the experiences of medical students in Australia and Indonesia who participated in a reciprocal intercultural participatory peer e-learning activity (RIPPLE) in global health...
January 13, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28086747/microrna-based-pan-cancer-diagnosis-and-treatment-recommendation
#7
Nikhil Cheerla, Olivier Gevaert
BACKGROUND: The current state-of-the-art in cancer diagnosis and treatment is not ideal; diagnostic tests are accurate but invasive, and treatments are "one-size fits-all" instead of being personalized. Recently, miRNA's have garnered significant attention as cancer biomarkers, owing to their ease of access (circulating miRNA in the blood) and stability. There have been many studies showing the effectiveness of miRNA data in diagnosing specific cancer types, but few studies explore the role of miRNA in predicting treatment outcome...
January 13, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28081550/ninth-grade-school-performance-in-danish-childhood-cancer-survivors
#8
Klaus Kaae Andersen, Anne Katrine Duun-Henriksen, Marie Hoffmann Frederiksen, Jeanette Falck Winther
BACKGROUND: Childhood cancer survivors can experience learning problems resulting in lower-than-expected attained education as adults. It is unclear whether learning problems manifest already during adolescence. METHODS: We analysed nationwide Danish registries on school grades for Danish children during 2001-2014. Applying a matched design we compared grades of childhood cancer survivors to children without cancer at ninth grade. We estimated grade differences by subject and its correlation to cancer site and age at diagnosis...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28080965/feeling-learning-from-and-being-aware-of-inner-states-interoceptive-dimensions-in-neurodegeneration-and-stroke
#9
Indira García-Cordero, Lucas Sedeño, Laura de la Fuente, Andrea Slachevsky, Gonzalo Forno, Francisco Klein, Patricia Lillo, Jesica Ferrari, Clara Rodriguez, Julian Bustin, Teresa Torralva, Sandra Baez, Adrian Yoris, Sol Esteves, Margherita Melloni, Paula Salamone, David Huepe, Facundo Manes, Adolfo M García, Agustín Ibañez
Interoception is a complex process encompassing multiple dimensions, such as accuracy, learning and awareness. Here, we examined whether each of those dimensions relies on specialized neural regions distributed throughout the vast interoceptive network. To this end, we obtained relevant measures of cardiac interoception in healthy subjects and patients offering contrastive lesion models of neurodegeneration and focal brain damage: behavioural variant fronto-temporal dementia (bvFTD), Alzheimer's disease (AD) and fronto-insular stroke...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28080126/know-thy-enemy-education-about-terrorism-improves-social-attitudes-toward-terrorists
#10
Jordan Theriault, Peter Krause, Liane Young
Hatred of terrorists is an obstacle to the implementation of effective counterterrorism policies-it invites indiscriminate retaliation, whereas many of the greatest successes in counterterrorism have come from understanding terrorists' personal and political motivations. Drawing from psychological research, traditional prejudice reduction strategies are generally not well suited to the task of reducing hatred of terrorists. Instead, in 2 studies, we explored education's potential ability to reduce extreme negative attitudes toward terrorists...
January 12, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28079731/midterm-radiographic-and-functional-outcomes-of-the-anterior-internal-pelvic-fixator-infix
#11
Rahul Vaidya, Adam Jonathan Martin, Matthew Roth, Frederick Tonnos, Bryant Oliphant, Jon Carlson
OBJECTIVE: To describe our experience using the anterior internal pelvic fixator (INIFX) for treating pelvic ring injuries. DESIGN: Case Series SETTING:: Level 1 Trauma Center PATIENTS:: Eighty-three patients with pelvic ring injuries treated with INFIX. Follow up avg. 35 months (range 12-80.33) INTERVENTION:: Surgical treatment of pelvic ring injuries included reduction, appropriate posterior fixation, and INFIX placement. OUTCOME MEASUREMENTS: Reduction using the pelvic deformity index (PDI) and pubic symphysis(PS) widening, Majeed functional scores, complications; infection, implant failure, heterotopic ossification (HO), nerve injury, and pain...
January 5, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28079723/toward-automating-hiv-identification-machine-learning-for-rapid-identification-of-hiv-related-social-media-data
#12
Sean D Young, Wenchao Yu, Wei Wang
INTRODUCTION: "Social big data" from technologies such as social media, wearable devices, and online searches continue to grow and can be used as tools for HIV research. Although researchers can uncover patterns and insights associated with HIV trends and transmission, the review process is time consuming and resource intensive. Machine learning methods derived from computer science might be used to assist HIV domain experts by learning how to rapidly and accurately identify patterns associated with HIV from a large set of social data...
February 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28079289/apocrine-metaplasia-found-at-mr-biopsy-is-there-something-to-be-learned
#13
Yiming Gao, Vandana Dialani, Carolynn DeBenedectis, Nicole Johnson, Elena Brachtel, Priscilla Slanetz
The purpose of this study was to determine (a) the frequency of apocrine metaplasia (ApoM) found on MR core biopsy of suspicious findings, and (b) to determine if there are specific MR imaging features that might obviate the need for biopsy. This HIPAA-compliant retrospective study was performed under IRB exemption for quality assurance studies. Patient demographics, MR imaging features, and pathology were reviewed. Breast lesions which underwent MR-guided biopsy, yielding ApoM on pathology analysis were included...
January 12, 2017: Breast Journal
https://www.readbyqxmd.com/read/28077714/formation-of-long-term-locomotor-memories-is-associated-with-functional-connectivity-changes-in-the-cerebellar-thalamic-cortical-network
#14
Firas Mawase, Simona Bar-Haim, Lior Shmuelof
: Although motor adaptation is typically rapid, accumulating evidence shows that it is also associated with long-lasting behavioral and neuronal changes. Two processes were suggested to explain the formation of long-term motor memories: recall, reflecting a retrieval of previous motor actions, and faster relearning, reflecting an increased sensitivity to errors. Although these manifestations of motor memories were initially demonstrated in the context of adaptation experiments in reaching, indications of long-term motor memories were also demonstrated recently in other kinds of adaptation such as in locomotor adaptation...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28077515/medial-prefrontal-cortex-pontine-nuclei-projections-modulate-suboptimal-cue-induced-associative-motor-learning
#15
Guang-Yan Wu, Shu-Lei Liu, Juan Yao, Lin Sun, Bing Wu, Yi Yang, Xuan Li, Qian-Quan Sun, Hua Feng, Jian-Feng Sui
Diverse and powerful mechanisms have evolved to enable organisms to modulate learning and memory under a variety of survival conditions. Cumulative evidence has shown that the prefrontal cortex (PFC) is closely involved in many higher-order cognitive functions. However, when and how the medial PFC (mPFC) modulates associative motor learning remains largely unknown. Here, we show that delay eyeblink conditioning (DEC) with the weak conditioned stimulus (wCS) but not the strong CS (sCS) elicited a significant increase in the levels of c-Fos expression in caudal mPFC...
January 10, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28077334/the-neuroprotective-compound-p7c3-a20-promotes-neurogenesis-and-improves-cognitive-function-after-ischemic-stroke
#16
Zachary B Loris, Andrew A Pieper, W Dalton Dietrich
Ischemic stroke is a devastating condition with few therapeutic interventions available. The neuroprotective compound P7C3-A20 inhibits mature neuronal cell death while also increasing the net magnitude of postnatal neurogenesis in models of neurodegeneration and acute injury. P7C3 compounds enhance flux of nicotinamide adenine dinucleotide (NAD) in mammalian cells, a proposed therapeutic approach to treating cerebral ischemia. The effectiveness of P7C3-A20 treatment on chronic histopathological and behavioral outcomes and neurogenesis after ischemic stroke has not previously been established...
January 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28077263/learning-in-mosquito-larvae-aedes-aegypti-habituation-to-a-visual-danger-signal
#17
Hugo Baglan, Claudio Lazzari, Fernando Guerrieri
In spite of the mosquito Aedes aegypti being a vector of several infectious diseases, a limited number of studies has been undertaken on learning in this species. Moreover, larval stages have been neglected as model organisms, although they are active, aquatic and perform stereotyped behavioural responses, e.g. the escape response when disturbed. To study the learning abilities of mosquito larvae, we focused on habituation, a form of non-associative learning widely studied in vertebrates and invertebrates. Habituation was defined as the progressive and reversible decrease in response to a reiterative stimulus...
January 7, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28077035/nurses-online-behaviour-lessons-for-the-nursing-profession
#18
Janet Green
Social networking has become an extremely popular online activity, however like many activities on the internet, there are some privacy risks and concerns associated with its use. In recent years an increasing number of nurses have been censured or asked to appear before regulatory or registering authorities for unprofessional behaviour on social media sites. Problem behaviours identified include: inappropriate content and postings, crossing professional boundaries and breaching patient privacy and confidentiality...
January 12, 2017: Contemporary Nurse
https://www.readbyqxmd.com/read/28077004/endoplasmic-reticulum-stress-modulation-as-a-target-for-ameliorating-effects-of-blast-induced-traumatic-brain-injury
#19
Brandon Peter Lucke-Wold, Aric Logsdon, Ryan C Turner, Jason D Huber, Charles L Rosen
Blast traumatic brain injury (bTBI) has been shown to contribute to progressive neurodegenerative disease. Recent evidence suggests that endoplasmic reticulum (ER) stress is a mechanistic link between acute neurotrauma and progressive tauopathy. We propose that ER stress contributes to extensive behavioral changes associated with a CTE-like phenotype. Targeting ER stress is a promising option for the treatment of neurotrauma related neurodegeneration warranting investigation. Utilizing our validated and clinically relevant Sprague-Dawley blast model, we investigated a time course of mechanistic changes that occur following bTBI (50 PSI) including: ER stress activation, iron mediated toxicity, and tauopathy via western blot and immunohistochemistry...
January 11, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28076974/topological-organization-of-whole-brain-white-matter-in-hiv-infection
#20
Laurie M Baker, Sarah Cooley, Ryan P Cabeen, David H Laidlaw, John A Joska, Jacqueline Hoare, Dan J Stein, Jodi Heaps-Woodruff, Lauren E Salminen, Robert H Paul
Infection with human immunodeficiency virus (HIV) is associated with neuroimaging alterations. However, little is known about the topological organization of whole-brain networks and the corresponding association with cognition. As such, we examined structural whole-brain white matter connectivity patterns and cognitive performance in 29 HIV+ young adults (mean age = 25.9) with limited or no HIV treatment history. HIV+ participants and demographically similar HIV- controls (n = 16) residing in South Africa underwent magnetic resonance imaging (MRI) and neuropsychological testing...
January 11, 2017: Brain Connectivity
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