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https://www.readbyqxmd.com/read/28641077/inhibition-of-early-growth-response-1-in-the-hippocampus-alleviates-neuropathology-and-improves-cognition-in-an-alzheimer-model-with-plaques-and-tangles
#1
Xike Qin, Yunling Wang, Hemant K Paudel
A sporadic form of Alzheimer disease (AD) and vascular dementia share many risk factors, and their pathogenic mechanisms are suggested to be related. Transcription factor early growth response 1 (Egr-1) regulates various vascular pathologies and is up-regulated in both AD brains and AD mouse models; however, its role in AD pathogenesis is unclear. Herein, we report that silencing of Egr-1 in the hippocampus by shRNA reduces tau phosphorylation, amyloid-β (Aβ) pathology, and improves cognition in the 3xTg-AD mouse model...
June 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28640974/resistance-to-powdery-mildew8-1-boosts-pattern-triggered-immunity-against-multiple-pathogens-in-arabidopsis-and-rice
#2
Yan Li, Yong Zhang, Qing-Xia Wang, Ting-Ting Wang, Xiao-Long Cao, Zhi-Xue Zhao, Sheng-Li Zhao, Yong-Ju Xu, Zhi-Yuan Xiao, Jin-Lu Li, Jing Fan, Hui Yang, Fu Huang, Shunyuan Xiao, Wen-Ming Wang
The Arabidopsis gene RESISTANCE TO POWDERY MILDEW8.1 (RPW8.1) confers resistance to virulent fungal and oomycete pathogens that cause powdery mildew and downy mildew, respectively. However, the underlying mechanism remains unclear. Here, we show that ectopic expression of RPW8.1 boosts pattern-triggered immunity (PTI) resulting in enhanced resistance against different pathogens in both Arabidopsis and rice. In Arabidopsis, transcriptome analysis revealed that ectopic expression of RPW8.1-YFP constitutively up-regulates expression of many pathogen-associated molecular pattern-(PAMP-) inducible genes...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28637246/effect-of-psilocybin-on-empathy-and-moral-decision-making
#3
Thomas Pokorny, Katrin H Preller, Michael Kometer, Isabel Dziobek, Franz X Vollenweider
Background: Impaired empathic abilities lead to severe negative social consequences and influence the development and treatment of several psychiatric disorders. Furthermore, empathy has been shown to play a crucial role in moral and prosocial behaviour. Although the serotonin (5-HT) system has been implicated in modulating empathy and moral behaviour, the relative contribution of the various 5-HT receptor subtypes is still unknown. Methods: We investigated the acute effect of psilocybin (0...
June 16, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28636585/microbiome-a-potential-component-in-the-origin-of-mental-disorders
#4
George B Stefano, Radek Ptacek, Jiri Raboch, Richard M Kream
It is not surprising to find microbiome abnormalities present in psychiatric disorders such as depressive disorders, bipolar disorders, etc. Evolutionary pressure may provide an existential advantage to the host eukaryotic cells in that it survives in an extracellular environment containing non-self cells (e.g., bacteria). This phenomenon is both positive and negative, as with other intercellular processes. In this specific case, the phenomenal amount of information gained from combined bacterial genome could enhance communication between self and non-self cells...
June 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28636141/binocular-facilitation-of-cone-specific-visual-evoked-potentials-in-colour-deficiency
#5
Jeff Rabin, Andrew Kryder, Dan Lam
BACKGROUND: Neural compensatory mechanisms have been proposed, which preserve the binocular visual field in glaucoma, as well as cognition in Alzheimer's disease and motor function in Parkinson's disease. It is conceivable that comparable mechanisms operate to preserve function in congenital and/or dystrophic disease. In hereditary colour vision deficiency (CVD), we observed significant facilitation in the amplitude of the binocular cone-specific visual evoked potential (VEP) compared to the monocular amplitude for the cone type corresponding to the CVD...
June 21, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28635973/deconstructing-decisions-to-initiate-maintain-or-discontinue-adjuvant-endocrine-therapy-in-breast-cancer-survivors-a-mixed-methods-study
#6
Shirley M Bluethmann, Caitlin C Murphy, Jasmin A Tiro, Michelle A Mollica, Sally W Vernon, Leona Kay Bartholomew
PURPOSE/OBJECTIVES: Adjuvant endocrine therapy (AET) has been shown to improve survival in hormone receptor-positive breast cancer survivors, but as many as half do not complete recommended treatment. Management of medication-related side effects and engagement with providers are two potentially modifiable factors, but their associations with adherence are not well understood. The aims were to build on survey results to qualitatively explore survivors' experiences with prescribed AET to (a) describe appraisal and management of AET side effects and (b) deconstruct decisions to initiate, discontinue, or maintain AET...
May 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28635378/people-with-autism-spectrum-conditions-make-more-consistent-decisions
#7
George D Farmer, Simon Baron-Cohen, William J Skylark
People with autism spectrum conditions (ASC) show reduced sensitivity to contextual stimuli in many perceptual and cognitive tasks. We investigated whether this also applies to decision making by examining adult participants' choices between pairs of consumer products that were presented with a third, less desirable "decoy" option. Participants' preferences between the items in a given pair frequently switched when the third item in the set was changed, but this tendency was reduced among individuals with ASC, which indicated that their choices were more consistent and conventionally rational than those of control participants...
June 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28634906/delivery-of-brief-cognitive-behavioral-therapy-for-medically-ill-patients-in-primary-care-a-pragmatic-randomized-clinical-trial
#8
Jeffrey A Cully, Melinda A Stanley, Nancy J Petersen, Natalie E Hundt, Michael R Kauth, Aanand D Naik, Kristen Sorocco, Shubhada Sansgiry, Darrell Zeno, Mark E Kunik
BACKGROUND: Few studies have examined the practical effectiveness and implementation potential of brief psychotherapies that integrate mental and physical health. OBJECTIVE: To determine whether an integrated brief cognitive behavioral therapy (bCBT), delivered by mental health providers in primary care, would improve depression, anxiety and quality of life for medically ill veterans. DESIGN: Pragmatic patient-randomized trial comparing bCBT to enhanced usual care (EUC)...
June 20, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28634732/engineering-poly-lactic-co-glycolic-acid-plga-micro-and-nano-carriers-for-controlled-delivery-of-17%C3%AE-estradiol
#9
Alesia V Prakapenka, Heather A Bimonte-Nelson, Rachael W Sirianni
With menopause, circulating levels of 17β-estradiol (E2) markedly decrease. E2-based hormone therapy is prescribed to alleviate symptoms associated with menopause. E2 is also recognized for its beneficial effects in the central nervous system (CNS), such as enhanced cognitive function following abrupt hormonal loss associated with ovariectomy. For women with an intact uterus, an opposing progestogen component is required to decrease the risk of developing endometrial hyperplasia. While adding an opposing progestogen attenuates these detrimental effects on the uterus, it can attenuate the beneficial effects of E2 in the CNS...
June 20, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28634363/long-term-health-outcomes-in-patients-with-prader-willi-syndrome-a-nationwide-cohort-study-in-denmark
#10
E Hedgeman, S P Ulrichsen, S Carter, N C Kreher, K P Malobisky, M M Braun, J Fryzek, M S Olsen
BACKGROUND: Prader-Willi syndrome (PWS) is a rare congenital disease that affects growth, sexual development, cognitive function and behavior. Individuals exhibit food preoccupation and hyperphagia, which may lead to obesity with premature morbidity and mortality. The aim of this work was to evaluate the risk of venous thromboembolisms (VTE), myocardial infarction, pulmonary hypertension, sleep apnea, depression, anxiety and all-cause mortality among persons with PWS as compared to an age- and sex-matched general population cohort...
June 21, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28634329/long-days-enhance-recognition-memory-and-increase-insulin-like-growth-factor-2-in-the-hippocampus
#11
Adriano Dellapolla, Ian Kloehn, Harshida Pancholi, Ben Callif, David Wertz, Kayla E Rohr, Matthew M Hurley, Kimberly M Baker, Samer Hattar, Marieke R Gilmartin, Jennifer A Evans
Light improves cognitive function in humans; however, the neurobiological mechanisms underlying positive effects of light remain unclear. One obstacle is that most rodent models have employed lighting conditions that cause cognitive deficits rather than improvements. Here we have developed a mouse model where light improves cognitive function, which provides insight into mechanisms underlying positive effects of light. To increase light exposure without eliminating daily rhythms, we exposed mice to either a standard photoperiod or a long day photoperiod...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28632204/successful-pharmacotherapy-for-the-treatment-of-severe-feeding-aversion-with-mechanistic-insights-from-cross-species-neuronal-remodeling
#12
W G Sharp, A G Allen, K H Stubbs, K K Criado, R Sanders, C E McCracken, R G Parsons, L Scahill, S L Gourley
Pediatric feeding disorders affect up to 5% of children, causing severe food intake problems that can result in serious medical and developmental outcomes. Behavioral intervention (BI) is effective in extinguishing feeding aversions, and also expert-dependent, time/labor-intensive and not well understood at a neurobiological level. Here we first conducted a double-blind, placebo-controlled trial comparing BI with BI plus d-cycloserine (DCS). DCS is a partial N-methyl-d-aspartate (NMDA) receptor agonist shown to augment extinction therapies in multiple anxiety disorders...
June 20, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28630452/remote-memories-are-enhanced-by-comt-activity-through-dysregulation-of-the-endocannabinoid-system-in-the-prefrontal-cortex
#13
D Scheggia, E Zamberletti, N Realini, M Mereu, G Contarini, V Ferretti, F Managò, G Margiani, R Brunoro, T Rubino, M A De Luca, D Piomelli, D Parolaro, F Papaleo
The prefrontal cortex (PFC) is a crucial hub for the flexible modulation of recent memories (executive functions) as well as for the stable organization of remote memories. Dopamine in the PFC is implicated in both these processes and genetic variants affecting its neurotransmission might control the unique balance between cognitive stability and flexibility present in each individual. Functional genetic variants in the catechol-O-methyltransferase (COMT) gene result in a different catabolism of dopamine in the PFC...
June 20, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28630291/global-sustainable-development-priorities-500-y-after-luther-sola-schola-et-sanitate
#14
Wolfgang Lutz
Martin Luther succinctly summarized his theology in sola statements, such as sola scriptura, viewing the Bible (scriptura) as the only valid source of information about God rather than what he viewed as the extraneous, corrupting church doctrine of the time. As a secular side effect of this focus on individual reading skills, the Protestant territories were the first to acquire high literacy rates, which subsequently fostered health, economic growth, and good governance. Here I argue that a similar priority focus on empowerment of all segments of all populations through education and health (sola schola et sanitate) is needed today for sustainable development...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630250/amplification-of-mglu5-endocannabinoid-signaling-rescues-behavioral-and-synaptic-deficits-in-a-mouse-model-of-adolescent-and-adult-dietary-polyunsaturated-fatty-acids-imbalance
#15
Antonia Manduca, Anissa Bara, Thomas Larrieu, Olivier Lassalle, Corinne Joffre, Sophie Layé, Olivier J Manzoni
Energy-dense, yet nutritionally-poor food is a high-risk factor for mental health disorders. This is of particular concern during adolescence, a period often associated with increased consumption of low nutritional content food and higher prevalence of mental health disorders. Indeed, there is an urgent need to understand the mechanisms linking unhealthy diet and mental disorders. Deficiency in n-3 polyunsaturated fatty acid (PUFAs) is a hallmark of poor nutrition and mood disorders. Here, we developed a mouse model of n-3 PUFAs deficiency lasting from adolescence into adulthood...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28629964/a-novel-heterocyclic-compound-improves-working-memory-in-the-radial-arm-maze-and-modulates-the-dopamine-receptor-d1r-in-frontal-cortex-of-the-sprague-dawley-rat
#16
Ahmed M Hussein, Yogesh D Aher, Predrag Kalaba, Nilima Y Aher, Vladimir Dragačević, Bojana Radoman, Marija Ilic, Johann Leban, Tetyana Beryozkina, Abdel Baset M A Ahmed, Ernst Urban, Thierry Langer, Gert Lubec
A series of compounds have been shown to enhance cognitive function via the dopaminergic system and indeed the search for more active and less toxic compounds is continuing. It was therefore the aim of the study to synthetise and test a novel heterocyclic compound for cognitive enhancement in a paradigm for working memory. Specific and effective dopamine re-uptake inhibition (DAT (IC50=4,1 ± 0,8μM) made us test this compound in a radial arm maze (RAM) in the rat. CE-125 (4-((benzhydrylsulfinyl)methyl)-2-cyclopropylthiazole), was tested for dopamine (DAT), serotonin and norepinephrine re-uptake inhibition by a well-established system...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28629963/environmental-enrichment-reduces-innate-anxiety-with-no-effect-on-depression-like-behaviour-in-mice-lacking-the-serotonin-transporter
#17
Jake Rogers, Shanshan Li, Laurence Lanfumey, Anthony J Hannan, Thibault Renoir
Along with being the main target of many antidepressant medications, the serotonin transporter (5-HTT) is known to be involved in the pathophysiology of depression and anxiety disorders. In line with this, mice with varying 5-HTT genotypes are invaluable tools to study depression- and anxiety-like behaviours as well as the mechanisms mediating potential therapeutics. There is clear evidence that both genetic and environmental factors play a role in the aetiology of psychiatric disorders. In that regard, housing paradigms which seek to enhance cognitive stimulation and physical activity have been shown to exert beneficial effects in animal models of neuropsychiatric disorders...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28629447/transcranial-direct-current-stimulation-for-depression-in-alzheimer-s-disease-study-protocol-for-a-randomized-controlled-trial
#18
Zui Narita, Yuma Yokoi
BACKGROUND: Patients with Alzheimer's disease frequently elicit neuropsychiatric symptoms as well as cognitive deficits. Above all, depression is one of the most common neuropsychiatric symptoms in Alzheimer's disease but antidepressant drugs have not shown significant beneficial effects on it. Moreover, electroconvulsive therapy has not ensured its safety for potential severe adverse events although it does show beneficial clinical effect. Transcranial direct current stimulation can be the safe alternative of neuromodulation, which applies weak direct electrical current to the brain...
June 19, 2017: Trials
https://www.readbyqxmd.com/read/28628197/vesicular-acetylcholine-transporter-vacht-overexpression-induces-major-modifications-of-striatal-cholinergic-interneuron-morphology-and-function
#19
Helena Janickova, Vania F Prado, Marco A M Prado, Salah El Mestikawy, Véronique Bernard
Striatal cholinergic interneurons (CIN) are pivotal for the regulation of the striatal network. Acetylcholine (ACh) released by CIN is centrally involved in reward behavior as well as locomotor or cognitive functions. Recently, BAC transgenic mice expressing channelrhodopsin-2 (ChR2) protein under the control of the choline acetyltransferase (ChAT) promoter (ChAT-ChR2) and displaying almost 50 extra copies of the VAChT gene were used to dissect cholinergic circuit connectivity and function using optogenetic approaches...
June 19, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28627010/a-turtle-cognition-research-demonstration-enhances-visitor-engagement-and-keeper-animal-relationships
#20
Andrew C Alba, Katherine A Leighty, Victoria L Pittman Courte, Alison P Grand, Tamara L Bettinger
Environmental enrichment techniques present animals with cognitive challenges while providing them opportunities to make choices and exert control over their environment. In this way, cognitive research and training is enriching to animals and can be used as a form of enrichment in zoos and aquariums. Cognitive research demonstrations also provide an opportunity to enhance visitor experience, as well as foster interactions between animals and keepers. We investigated how cognitive research sessions involving eastern box turtles (Terrapene carolina carolina) at Disney's Animal Kingdom(®) impacted both the rate of visitors coming to the exhibit and the amount of time they spent engaged...
June 18, 2017: Zoo Biology
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