keyword
MENU ▼
Read by QxMD icon Read
search

Thought

keyword
https://www.readbyqxmd.com/read/29793153/effects-of-mg-2-on-recovery-of-nmda-receptors-from-inhibition-by-memantine-and-ketamine-reveal-properties-of-a-second-site
#1
Nathan G Glasgow, Madeleine R Wilcox, Jon W Johnson
Memantine and ketamine are NMDA receptor (NMDAR) open channel blockers that are thought to act via similar mechanisms at NMDARs, but exhibit divergent clinical effects. Both drugs act by entering open NMDARs and binding at a site deep within the ion channel (the deep site) at which the endogenous NMDAR channel blocker Mg2+ also binds. Under physiological conditions, Mg2+ increases the IC50 s of memantine and ketamine through competition for binding at the deep site. Memantine also can inhibit NMDARs after associating with a second site accessible in the absence of agonist, a process termed second site inhibition (SSI) that is not observed with ketamine...
May 12, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29792998/bmi-and-gender-increase-risk-for-sacral-fractures-after-multilevel-instrumented-spinal-fusion-compared-to-bone-mineral-density-and-pelvic-parameters
#2
Stephan N Salzmann, Courtney Ortiz Miller, John A Carrino, Jingyan Yang, Jennifer Shue, Andrew A Sama, Frank P Cammisa, Federico P Girardi, Alexander P Hughes
BACKGROUND CONTEXT: Sacral fractures are a rare but potentially devastating complication. Long-fusion constructs including the sacrum that do not extend to the pelvis may result in sacral fractures. Besides established risk factors including gender, age and number of levels fused, body mass index (BMI), pelvic parameters and bone mineral density (BMD) have also been proposed as potential risk factors for postoperative sacral fractures. The literature supporting this, however, is limited...
May 21, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29792954/increased-brain-docosahexaenoic-acid-has-no-effect-on-the-resolution-of-neuroinflammation-following-intracerebroventricular-lipopolysaccharide-injection
#3
Marc-Olivier Trépanier, Kathryn E Hopperton, Vanessa Giuliano, Mojgan Masoodi, Richard P Bazinet
Resolution of inflammation in the periphery was once thought to be a passive process, but new research now suggests it is an active process mediated by specialized pro-resolving lipid mediators (SPM) derived from omega-3 polyunsaturated fatty acids (n-3 PUFA). However, this has yet to be illustrated in neuroinflammation. The purpose of this study was to measure resolution of neuroinflammation and to test whether increasing brain docosahexaenoic acid (DHA) affects the resolution of neuroinflammation. C57Bl/6 mice, fat-1 mice and their wildtype littermates, fed either fish oil or safflower oil, received lipopolysaccharide (LPS) in the left lateral ventricle...
May 21, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29792952/anticancer-mechanism-of-sinapic-acid-in-pc-3-and-lncap-human-prostate-cancer-cell-lines
#4
Canan Eroğlu, Ebru Avcı, Hasibe Vural, Ercan Kurar
Sinapic acid (SA) is a derivative of hydroxycinnamic acid and found in various vegetables and fruit species. Aim was to evaluate the anticancer effects of SA in PC-3 and LNCaP human prostate cancer cells. The effect of SA on cell viability was determined using XTT assay. Expressions of 8 genes for apoptosis and 6 genes for metastasis were evaluated by qPCR. Caspase-3 activity was determined using caspase-3 colorimetric assay kit. Effect of SA on cell invasion was evaluated with cell invasion assay. The IC50 dose of SA in PC-3 and LNCaP cells was found to be 1000 μM for 72 h...
May 21, 2018: Gene
https://www.readbyqxmd.com/read/29792928/translation-of-dipeptide-repeat-proteins-from-the-c9orf72-expanded-repeat-is-associated-with-cellular-stress
#5
Yoshifumi Sonobe, Ghanashyam Ghadge, Katsuhisa Masaki, Ataman Sendoel, Elaine Fuchs, Raymond P Roos
Expansion of a hexanucleotide repeat (HRE), GGGGCC, in the C9ORF72 gene is recognized as the most common cause of familial amyotrophic lateral sclerosis (FALS), frontotemporal dementia (FTD) and ALS-FTD, as well as 5-10% of sporadic ALS. Despite the location of the HRE in the non-coding region (with respect to the main C9ORF72 gene product), dipeptide repeat proteins (DPRs) that are thought to be toxic are translated from the HRE in all three reading frames from both the sense and antisense transcript. Here, we identified a CUG translation initiation codon that has a good Kozak consensus sequence as the translation initiation codon...
May 21, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29792812/ultralow-damping-in-nanometer-thick-epitaxial-spinel-ferrite-thin-films
#6
Satoru Emori, Di Yi, Sam Crossley, Jacob J Wisser, Purnima P Balakrishnan, Behrouz Khodadadi, Padraic Shafer, Christoph Klewe, Alpha T N'Diaye, Brittany T Urwin, Krishnamurthy Mahalingam, Brandon Howe, Harold Y Hwang, Elke Arenholz, Yuri Suzuki
Pure spin currents, unaccompanied by dissipative charge flow, are essential for realizing energy-efficient nanomagnetic information and communications devices. Thin-film magnetic insulators have been identified as promising materials for spin-current technology, since they are thought to exhibit lower damping compared to their metallic counterparts. However, insulating behavior is not a sufficient requirement for low damping, as evidenced by the very limited options for low-damping insulators. Here, we demonstrate a new class of nanometer-thick ultralow-damping insulating thin films, based on design criteria that minimize orbital angular momentum and structural disorder...
May 24, 2018: Nano Letters
https://www.readbyqxmd.com/read/29792746/high-resolution-ct-findings-of-obstructive-and-restrictive-phenotypes-of-chronic-lung-allograft-dysfunction-more-than-just-bronchiolitis-obliterans-syndrome
#7
Partha Hota, Chandra Dass, Maruti Kumaran, Scott Simpson
OBJECTIVE: The purpose of this article is to review the high-resolution CT characteristics of individual obstructive and restrictive chronic lung allograft dysfunction (CLAD) phenotypes to aid in making accurate diagnoses and guiding treatment. CONCLUSION: Long-term survival and function after lung transplant are considerably worse compared with after other organ transplants. CLAD is implicated as a major limiting factor for long-term graft viability. Historically thought to be a single entity, bronchiolitis obliterans syndrome, CLAD is actually a heterogeneous group of disorders with distinct subtypes...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792566/clues-to-an-evolutionary-mystery-the-genes-for-t-toxin-enabler-of-the-devastating-1970-southern-corn-leaf-blight-epidemic-are-present-in-ancestral-species-suggesting-an-ancient-origin
#8
Bradford J Condon, Candace E Elliott, Jonathan Gonzalez, Sung-Hwan Yun, Yasunori Akagi, Tyr Wiesner-Hanks, Motoichiro Kodama, Gillian Turgeon
The Southern Corn Leaf Blight epidemic of 1970 devastated fields of T-cytoplasm corn planted in monoculture throughout the eastern US. The epidemic was driven by race T, a previously unseen race of Cochliobolus heterostrophus. A second fungus, Phyllosticta zeae-maydis, with the same biological specificity, appeared coincidentally. Race T produces T-toxin, while P. zeae-maydis produces PM-toxin, both host selective polyketide toxins necessary for supervirulence. Present abundance of genome sequences offers an opportunity to tackle the evolutionary origins of T- and PM- toxin biosynthetic genes, previously thought unique to these species...
May 24, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29792450/the-evolution-of-work-team-research-since-hawthorne
#9
John E Mathieu, Mikhail A Wolfson, Semin Park
Since the Hawthorne studies of the 1920s and 1930s, there has been tremendous progress in the science and the practice of work group effectiveness. We chronicle the evolution of 3 schools of thought concerning work groups that spawned about the time of those studies. We highlight the different emphases of each perspective and how they eventually merged into an integrated view of teamwork. We also illustrate the disciplinary ebbs and flows of work group research over the past quarter century and how many different scholars from diverse institutions are currently contributing to the literature...
May 2018: American Psychologist
https://www.readbyqxmd.com/read/29792162/overlapping-but-distinct-topology-for-zebrafish-v2r-like-olfactory-receptors-reminiscent-of-odorant-receptor-spatial-expression-zones
#10
Gaurav Ahuja, Vera Reichel, Daniel Kowatschew, Adnan S Syed, Aswani Kumar Kotagiri, Yuichiro Oka, Franco Weth, Sigrun I Korsching
BACKGROUND: The sense of smell is unrivaled in terms of molecular complexity of its input channels. Even zebrafish, a model vertebrate system in many research fields including olfaction, possesses several hundred different olfactory receptor genes, organized in four different gene families. For one of these families, the initially discovered odorant receptors proper, segregation of expression into distinct spatial subdomains within a common sensory surface has been observed both in teleost fish and in mammals...
May 23, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29792126/neuropathological-profile-of-the-pentylenetetrazol-ptz-kindling-model
#11
E Samokhina, Alexander Samokhin
Epilepsy is a complex neurological disease characterized by spontaneous episodes of abnormal, simultaneous firing of a neuronal population and disturbances of consciousness (so-called seizures) of unknown cause. Antiepileptic drugs are only symptomatic treatment, and there is a strong demand for the search of an alternative treatment of epilepsy. For this purpose, animal models of epilepsy are an important prerequisite. There are various animal models with chronic brain dysfunctions thought to reflect the processes underlying human epilepsy...
May 23, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29791948/multiple-sclerosis
#12
Bassem I Yamout, Raed Alroughani
Multiple sclerosis (MS) is a chronic central nervous system inflammatory disease of autoimmune etiology, mediated by activated T cells with evolving evidence of a significant contribution from B cells and cells of the innate immune system. The disease is thought to be due to a complex interaction between different genetic and environmental factors. The prevalence of MS is rising all over the world, due on one hand to earlier diagnosis and prolonged survival, and on the other to a true increase in incidence of the disease...
April 2018: Seminars in Neurology
https://www.readbyqxmd.com/read/29791929/documenting-routinely-what-matters-to-people-standardized-headings-for-health-records-of-patients-with-chronic-health-conditions
#13
Birgit Prodinger, Paul Rastall, Dipak Kalra, Darren Wooldridge, Iain Carpenter
OBJECTIVE:  Specifying the content in electronic health records (EHRs) through standardized headings based on international reference classifications will facilitate their semantic interoperability. The objective of this study was to specify potential chapter headings for EHRs aligned with the World Health Organization's (WHO) International Classification of Functioning, Disability, and Health (ICF) based on the perspectives of people living with chronic health conditions, carers, and professionals...
April 2018: Applied Clinical Informatics
https://www.readbyqxmd.com/read/29791907/toll-like-receptor-3-signaling-contributes-to-regional-neutrophil-recruitment-in-cultured-human-glomerular-endothelial-cells
#14
Qiang Liu, Tadaatsu Imaizumi, Shogo Kawaguchi, Tomomi Aizawa, Tomoh Matsumiya, Shojiro Watanabe, Koji Tsugawa, Hidemi Yoshida, Kazushi Tsuruga, Kensuke Joh, Hiroshi Kijima, Hiroshi Tanaka
BACKGROUND: Given the importance of neutrophil recruitment in the pathogenesis of glomerulonephritis (GN), the representative neutrophil chemoattractant C-X-C motif chemokine 1 (CXCL1)/GROα and the adhesion molecule E-selectin in glomerular endothelial cells (GECs) play a pivotal role in the development of GN. Endothelial Toll-like receptor 3 (TLR3) is thought to be involved in the inflammatory response via innate immunity. However, the role of endothelial TLR3 signaling in the expression of neutrophil chemoattractants and adhesion molecules remains to be elucidated...
May 23, 2018: Nephron
https://www.readbyqxmd.com/read/29791846/myosin-iia-promotes-antibody-responses-by-regulating-b-cell-activation-acquisition-of-antigen-and-proliferation
#15
Robbert Hoogeboom, Elizabeth M Natkanski, Carla R Nowosad, Dessislava Malinova, Rajesh P Menon, Antonio Casal, Pavel Tolar
B cell responses are regulated by antigen acquisition, processing, and presentation to helper T cells. These functions are thought to depend on contractile activity of non-muscle myosin IIa. Here, we show that B cell-specific deletion of the myosin IIa heavy chain reduced the numbers of bone marrow B cell precursors and splenic marginal zone, peritoneal B1b, and germinal center B cells. In addition, myosin IIa-deficient follicular B cells acquired an activated phenotype and were less efficient in chemokinesis and extraction of membrane-presented antigens...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29791663/-evolution-and-revolution-the-anarchist-geographers-elis%C3%A3-e-reclus-and-p%C3%A3-tr-kropotkin-and-their-connection-to-modern-science-in-the-nineteenth-and-twentieth-centuries
#16
Federico Ferretti
This text examines the construction of a line of scientific thinking by a group of anarchist geographers who were active in the nineteenth and twentieth centuries, most famously represented by Elisée Reclus and Pëtr Kropotkin. The members of this network were simultaneously intellectuals and activists, and the originality of their scientific production stands out in comparison with the science of that time. They were also interested in disciplines such as sociology, anthropology, and pedagogy, and used the scientific tools from the leading intellectual trains of thought of that era (such as positivism and especially evolutionism) in an attempt to reach different conclusions that did not justify social inequalities, but rather could be used to construct a fairer society...
May 10, 2018: História, Ciências, Saúde—Manguinhos
https://www.readbyqxmd.com/read/29791461/a-discrete-mathematical-model-for-the-aggregation-of-%C3%AE-amyloid
#17
Maher A Dayeh, George Livadiotis, Saber Elaydi
Dementia associated with the Alzheimer's disease is thought to be correlated with the conversion of the β - Amyloid (Aβ) peptides from soluble monomers to aggregated oligomers and insoluble fibrils. We present a discrete-time mathematical model for the aggregation of Aβ monomers into oligomers using concepts from chemical kinetics and population dynamics. Conditions for the stability and instability of the equilibria of the model are established. A formula for the number of monomers that is required for producing oligomers is also given...
2018: PloS One
https://www.readbyqxmd.com/read/29791297/late-positive-component-event-related-potential-amplitude-predicts-long-term-classroom-based-learning
#18
Katherine W Turk, Ala'a A Elshaar, Rebecca G Deason, Nadine C Heyworth, Corrine Nagle, Bruno Frustace, Sean Flannery, Ann Zumwalt, Andrew E Budson
It is difficult to predict whether newly learned information will be retrievable in the future. A biomarker of long-lasting learning, capable of predicting an individual's future ability to retrieve a particular memory, could positively influence teaching and educational methods. Event-related potentials (ERPs) were investigated as a potential biomarker of long-lasting learning. Prior ERP studies have supported a dual-process model of recognition memory that categorizes recollection and familiarity as distinct memorial processes with distinct ERP correlates...
May 23, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29791213/nurses-perspectives-on-pharmacology-why-what-and-at-which-point-of-the-curricula-should-education-be-delivered
#19
Ehsan U Khan, Pauline A Hood
AIMS AND OBJECTIVES: the study aimed to capture the views of nursing students and qualified nurses about pharmacology education and at which point the subject should be taught. BACKGROUND: drug errors are common in clinical practice. However, the presence of pharmacology education in nursing curricula varies, with few higher education institutes focusing on the topic in pre-registration years. DESIGN: a cross-sectional survey was carried out with 46 pre-registration, 18 post-qualification and 15 post-qualification nurse prescribing course students...
May 24, 2018: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/29791189/late-onset-stress-symptomatology-loss-scale-short-form-development-and-validation
#20
Christopher B Brady, Anica Pless Kaiser, Avron Spiro, Eve Davison, Daniel King, Lynda King
OBJECTIVES: Late-onset stress symptomatology (LOSS) is a phenomenon observed in older combat veterans who experience increased combat-related thoughts, feelings, and reminiscences corresponding with the changes and challenges of aging. Previously, we developed the LOSS Scale to assess LOSS. This paper describes the development and validation of a LOSS Scale short form (LOSS-SF) to screen veterans in various settings who may be actively re-examining their past wartime experiences. METHOD: Three studies examined the reliability and validity of the LOSS-SF in separate samples of male combat veterans age 55 and older (total N = 346)...
May 23, 2018: Aging & Mental Health
keyword
keyword
28650
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"