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https://www.readbyqxmd.com/read/28822896/giving-what-one-should-explanations-for-the-knowledge-behavior-gap-for-altruistic-giving
#1
REVIEW
Peter R Blake
Several studies have shown that children struggle to give what they believe that they should: the so-called knowledge-behavior gap. Over a dozen recent Dictator Game studies find that, although young children believe that they should give half of a set of resources to a peer, they typically give less and often keep all of the resources for themselves. This article reviews recent evidence for five potential explanations for the gap and how children close it with age: self-regulation, social distance, theory of mind, moral knowledge and social learning...
August 7, 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28821879/musashi-1-enhances-glioblastoma-cell-migration-and-cytoskeletal-dynamics-through-translational-inhibition-of-tensin3
#2
Hsiao-Yun Chen, Liang-Ting Lin, Mong-Lien Wang, Benoit Laurent, Chih-Hung Hsu, Chih-Ming Pan, Wan-Ru Jiang, Pau-Yuan Chen, Hsin-I Ma, Yi-Wei Chen, Pin-I Huang, Arthur Chiou, Shih-Hwa Chiou
The RNA-binding protein Musashi-1 (MSI1) exerts essential roles in multiple cellular functions, such as maintenance of self-renewal and pluripotency of stem cells. MSI1 overexpression has been observed in several tumor tissues, including glioblastoma (GBM), and is considered as a well-established marker for tumor metastasis and recurrence. However, the molecular mechanisms by which MSI1 regulates cell migration are still undetermined. Here we reported that MSI1 alters cell morphology, promotes cell migration, and increases viscoelasticity of GBM cells...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821652/calpain-grip-signaling-in-nucleus-accumbens-core-mediates-the-reconsolidation-of-drug-reward-memory
#3
Jie Liang, Jia-Li Li, Ying Han, Yi-Xiao Luo, Yan-Xue Xue, Yàn Zhang, Yán Zhang, Li-Bo Zhang, Man-Li Chen, Lin Lu, Jie Shi
Exposure to drug-paired cues causes drug memories to be in a destabilized state, and interfering with memory reconsolidation can inhibit relapse. Calpain, a calcium-dependent neutral cysteine protease, is involved in synaptic plasticity and the formation of long-term fear memory. However, the role of calpain in the reconsolidation of drug reward memory is still unknown. In the present study, using conditioned place preference (CPP) model, we found that exposure to drug-paired contextual stimuli induced the activation of calpain and decreased the expression of glutamate receptor interacting protein 1 (GRIP1) in the nucleus accumbens (NAc) core but not shell of male rats...
August 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821473/feasibility-of-a-facebook-intervention-for-exercise-motivation-and-cardiac-rehabilitation-adherence-study-protocol
#4
Lee Anne Siegmund, Haitham M Ahmed, Michael Todd Crawford, James Frank Bena
BACKGROUND: While cardiac rehabilitation has been shown to be effective at improving coronary heart disease (CHD), participation is generally poor. Attempts to increase uptake and adherence often fail. Use of a Facebook intervention for this population may be a unique opportunity to support self-determined motivation and affect adherence. OBJECTIVE: To evaluate the impact of a Facebook intervention on motivation for exercise and adherence to cardiac rehabilitation in patients with CHD during a 12-week, Phase II cardiac rehabilitation program...
August 18, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28820605/body-sovereignty-and-body-liability-in-the-wake-of-an-obesity-epidemic-a-poststructural-analysis-of-the-soda-ban
#5
Sonia R Ivancic
Public discourse about the 2012 soda ban proposal and its eventual dissolution offers a useful context for interrogating how discursive processes constitute and regulate normality, risk, and obesity. Using poststructural sensibilities, I critique the soda ban and public discourse about it. Although architects of the soda ban and its proponents challenged the neoliberal narrative of free choice by self-governing citizens, their efforts were stymied by (1) arguments that offered a minimalist role for the state in regulating health, and (2) contemporary anxieties about losing the ability to self-determine what to let into the body...
August 18, 2017: Health Communication
https://www.readbyqxmd.com/read/28819793/the-mechanisms-underlying-the-production-of-discontinuous-gas-exchange-cycles-in-insects
#6
REVIEW
Philip G D Matthews
This review examines the control of gas exchange in insects, specifically examining what mechanisms could explain the emergence of discontinuous gas exchange cycles (DGCs). DGCs are gas exchange patterns consisting of alternating breath-hold periods and bouts of gas exchange. While all insects are capable of displaying a continuous pattern of gas exchange, this episodic pattern is known to occur within only some groups of insects and then only sporadically or during certain phases of their life cycle. Investigations into DGCs have tended to emphasise the role of chemosensory thresholds in triggering spiracle opening as critical for producing these gas exchange patterns...
August 17, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28818395/lymphocyte-fate-and-metabolism-a-clonal-balancing-act
#7
REVIEW
Simone A Nish, Wen-Hsuan W Lin, Steven L Reiner
Activated lymphocytes perform a clonal balancing act, yielding a daughter cell that differentiates owing to intense PI3K signaling, alongside a self-renewing sibling cell with blunted anabolic signaling. Divergent cellular anabolism versus catabolism is emerging as a feature of several developmental and regenerative paradigms. Metabolism can dictate cell fate, in part, because lineage-specific regulators are embedded in the circuitry of conserved metabolic switches. Unequal transmission of PI3K signaling during regenerative divisions is reminiscent of compartmentalized PI3K activity during directed motility or polarized information flow in non-dividing cells...
August 14, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28818081/what-makes-gouty-inflammation-so-variable
#8
REVIEW
Robert Terkeltaub
Acute gout arthritis flares contribute dominantly to gout-specific impaired health-related quality of life, representing a progressively increasing public health problem. Flares can be complex and expensive to treat, partly due to the frequent comorbidities. Unmet needs in gout management are more pressing given the markedly increasing gout flare hospital admission rates. In addition, chronic gouty arthritis can cause joint damage and functional impairment. This review addresses new knowledge on the basis for the marked, inherent variability of responses to deposited urate crystals, including the unpredictable and self-limited aspects of many gout flares...
August 18, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28817427/what-predicts-ongoing-nonsuicidal-self-injury-a-comparison-between-persistent-and-ceased-self-injury-in-emerging-adults
#9
Glenn Kiekens, Penelope Hasking, Ronny Bruffaerts, Laurence Claes, Imke Baetens, Mark Boyes, Philippe Mortier, Koen Demyttenaere, Janis Whitlock
Although nonsuicidal self-injury (NSSI) peaks in adolescence, a significant proportion of young people continue to self-injure into emerging adulthood. Yet, little is known about factors prospectively associated with persistent NSSI. Using data from a 3-year longitudinal study (n = 1466), we compared 51 emerging adults (67.3% female; average age, 20.0 years) who continued to self-injure from adolescence and 50 emerging adults (83.7% female; average age, 20.3 years) who had ceased NSSI, on a broad range of psychosocial factors...
August 16, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28817263/responses-of-periphyton-to-fe2o3-nanoparticles-a-physiological-and-ecological-basis-for-defending-nanotoxicity
#10
Jun Tang, Ningyuan Zhu, Yan Zhu, Junzhuo Liu, Chenxi Wu, Philip G Kerr, Yonghong Wu, Kwan Sing Paul Kwan-Sing Lam
The toxic effects of nanoparticles on individual organisms have been widely investigated, while few studies have investigated the effects of nanoparticles on ubiquitous multi-community microbial aggregates. Here, periphyton as a model of microbial aggregates, was employed to investigate the responses of microbial aggregates exposed continuously to Fe2O3 nanoparticles (5.0 mg L-1) for 30 days. The Fe2O3 nanoparticles enter the microbial cells of the periphyton and disperse in the cytoplasm. The exposure to Fe2O3 nanoparticles results in the chlorophyll (a, b and c) contents of periphyton increasing and the total antioxidant capacity decreasing...
August 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28817124/directed-differentiation-and-long-term-maintenance-of-epicardial-cells-derived-from-human-pluripotent-stem-cells-under-fully-defined-conditions
#11
Xiaoping Bao, Xiaojun Lian, Tongcheng Qian, Vijesh J Bhute, Tianxiao Han, Sean P Palecek
Here, we describe how to efficiently direct human pluripotent stem cells (hPSCs) differentiation into self-renewing epicardial cells in a completely defined, xeno-free system by temporal modulation of regulators of canonical Wnt signaling. Appropriate differentiation-stage-specific application of Gsk3 inhibitor, Wnt inhibitor, and Gsk3 inhibitor (GiWiGi) is sufficient to produce cells expressing epicardial markers and exhibiting epicardial phenotypes with a high yield and purity from multiple hPSC lines in 16 d...
September 2017: Nature Protocols
https://www.readbyqxmd.com/read/28816911/resilience-in-adolescents-with-cancer-association-of-coping-with-positive-and-negative-affect
#12
Lexa K Murphy, Alexandra H Bettis, Meredith A Gruhn, Cynthia A Gerhardt, Kathryn Vannatta, Bruce E Compas
OBJECTIVE: To examine the prospective association between adolescents' coping with cancer-related stress and observed positive and negative affect during a mother-adolescent interaction task involving discussion of cancer-related stressors. METHODS: Adolescents (age 10-15 years) self-reported about their coping and affect approximately 2 months after cancer diagnosis. Approximately 3 months later, adolescents and mothers were video recorded having a discussion about cancer, and adolescents were coded for expression of positive affect (positive mood) and negative affect (sadness and anxiety)...
August 9, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28816413/porcine-spermatogonial-stem-cells-self-renew-effectively-in-a-three-dimensional-culture-microenvironment
#13
Ji Eun Park, Min Hee Park, Min Seong Kim, Yeo Reum Park, Jung Im Yun, Hee Tae Cheong, Minseok Kim, Jung Hoon Choi, Eunsong Lee, Seung Tae Lee
Generally, self-renewal of spermatogonial stem cells (SSCs) is maintained in vivo in a three-dimensional (3D) microenvironment consisting of the seminiferous tubule basement membrane, indicating the importance of the 3D microenvironment for in vitro culture of SSCs. Here, we report a 3D culture microenvironment that effectively maintains porcine SSC self-renewal during culture. Porcine SSCs were cultured in an agarose-based 3D hydrogel and in 2D culture plates either with or without feeder cells. Subsequently, the effects of 3D culture on the maintenance of undifferentiated SSCs were identified by analyzing cell colony formation and morphology, AP activity, and transcriptional and translational regulation of self-renewal-related genes and the effects on proliferation by analyzing cell viability and single cell-derived colony number...
August 17, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28816238/acute-myeloid-leukemia-transforms-the-bone-marrow-niche-into-a-leukemia-permissive-microenvironment-through-exosome-secretion
#14
B Kumar, M Garcia, L Weng, X Jung, J L Murakami, X Hu, T McDonald, A Lin, A R Kumar, D L DiGiusto, A S Stein, V A Pullarkat, S K Hui, N Carlesso, Y-H Kuo, R Bhatia, G Marcucci, C-C Chen
Little is known about how leukemia cells alter the bone marrow (BM) niche to facilitate their own growth and evade chemotherapy. Here, we provide evidence that acute myeloid leukemia (AML) blasts remodel the BM niche into a leukemia-growth-permissive and normal-hematopoiesis-suppressive microenvironment through exosome secretion. Either engrafted AML cells or AML-derived exosomes increased mesenchymal stromal progenitors and blocked osteolineage development and bone formation in vivo. Pre-conditioning with AML-derived exosomes 'primed' the animals for accelerated AML growth...
August 17, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28816218/continuing-professional-development-of-doctors
#15
Tejinder Singh
After graduating from medical school, all doctors need to undertake some training activities lifelong to maintain, update or develop their knowledge, skills and attitudes towards their professional practice. Continuing professional development (CPD) refers to continuing development of medical and non- medical competencies including professionalism, and interpersonal, managerial and communication skills. There is no single correct way of doing CPD. Most learning in CPD is self-directed and based on one's own learning needs...
March 2017: National Medical Journal of India
https://www.readbyqxmd.com/read/28815462/a-new-erice-report-considering-the-safety-of-medicines-in-the-21st-century
#16
Ivor Ralph Edwards
Pharmacovogilance policy, methods and practice require transformation at all levels to create an integrated, comprehensive, continuously improving system, fulfilling the broader remit of overall healthcare vigilance. In pursuit of this vision, energetic measures, including active engagement with patients, are needed to reduce our ignorance about many aspects of patients' experience of medical therapies and their outcomes, including the benefits, but especially the extensive harm known to be caused by medical interventions...
August 17, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28815351/an-integrated-model-of-skin-cancer-risk-in-sexual-minority-males
#17
Aaron J Blashill, Benjamin M Rooney, Kristen J Wells
Sexual minority males are an at-risk group for developing skin cancer. Elevated rates of skin cancer among this population are thought to be driven by excess indoor tanning; however, motivations to indoor tan among this population are unknown. Theoretically, appearance-based and affect regulation motives may be proximal predictors of increased indoor tanning in this population. The current study tests an integrated biopsychosocial model of indoor tanning behaviors and future intentions among a sample of sexual minority males...
August 16, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28814662/irgm1-coordinately-regulates-autoimmunity-and-host-defense-at-select-mucosal-surfaces
#18
Kathleen M Azzam, Jennifer H Madenspacher, Derek W Cain, Lihua Lai, Kymberly M Gowdy, Prashant Rai, Kyathanahalli Janardhan, Natasha Clayton, Willie Cunningham, Heather Jensen, Preeyam S Patel, John F Kearney, Gregory A Taylor, Michael B Fessler
The pathogenesis of primary Sjogren's syndrome (SS), an autoimmune disease that targets the mucosa of exocrine tissues, is poorly understood. Although several mouse models have been developed that display features of SS, most of these are within the larger context of a lupus-like presentation. Immunity-related GTPase family M protein 1 (Irgm1) is an interferon-inducible cytoplasmic GTPase that is reported to regulate autophagy and mitochondrial homeostasis. Here, we report that naive Irgm1-/- mice display lymphocytic infiltration of multiple mucosal tissues including the lung in a manner reminiscent of SS, together with IgA class-predominant autoantibodies including anti-Ro and anti-La...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28814649/wnt-ligand-presentation-and-reception-from-the-stem-cell-niche-to-tissue-engineering
#19
REVIEW
Kate M Mills, James L A Szczerkowski, Shukry J Habib
Stem cells reside in niches where spatially restricted signals maintain a delicate balance between stem cell self-renewal and differentiation. Wnt family proteins are particularly suited for this role as they are modified by lipids, which constrain and spatially regulate their signalling range. In recent years, Wnt/β-catenin signalling has been shown to be essential for the self-renewal of a variety of mammalian stem cells. In this review, we discuss Wnt-responsive stem cells in their niche, and mechanisms by which Wnt ligands are presented to responsive cells...
August 2017: Open Biology
https://www.readbyqxmd.com/read/28814201/using-temporal-distancing-to-regulate-emotion-in-adolescence-modulation-by-reactive-aggression
#20
S P Ahmed, L H Somerville, C L Sebastian
Adopting a temporally distant perspective on stressors reduces distress in adults. Here we investigate whether the extent to which individuals project themselves into the future influences distancing efficacy. We also examined modulating effects of age across adolescence and reactive aggression: factors associated with reduced future-thinking and poor emotion regulation. Participants (N = 83, aged 12-22) read scenarios and rated negative affect when adopting a distant-future perspective, near-future perspective, or when reacting naturally...
August 17, 2017: Cognition & Emotion
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