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https://www.readbyqxmd.com/read/29457871/a-qtl-on-chromosome-1-modulates-inter-male-aggression-in-mice
#1
Anna Delprato, Brice Bonheur, Marie-Paule Algéo, Alba Murillo, Esha Dhawan, Lu Lu, Robert W Williams, Wim E Crusio
Aggression between male conspecifics is a complex social behavior that is likely modulated by multiple gene variants. In this study the BXD recombinant inbred mouse strains (RIS) were used to map quantitative trait loci (QTLs) underlying behaviors associated with intermale aggression. Four hundred and fifty-seven males from 55 strains (including the parentals) were observed at an age of 13 +/- 1 week in a resident-intruder test following 10 days of isolation. Attack latency was measured directly within a 10 minute time period and the test was repeated 24 hours later...
February 19, 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29457653/how-to-create-shared-symbols
#2
Nicolas Fay, Bradley Walker, Nik Swoboda, Simon Garrod
Human cognition and behavior are dominated by symbol use. This paper examines the social learning strategies that give rise to symbolic communication. Experiment 1 contrasts an individual-level account, based on observational learning and cognitive bias, with an inter-individual account, based on social coordinative learning. Participants played a referential communication game in which they tried to communicate a range of recurring meanings to a partner by drawing, but without using their conventional language...
February 19, 2018: Cognitive Science
https://www.readbyqxmd.com/read/29457593/characterization-study-and-optimization-of-swelling-behavior-for-p-hema-co-eudragit-l-100-hydrogels-by-using-taguchi-method
#3
Hediye Irem Ozgunduz, Abdullah Bilal Ozturk, Hava Gizem Kandilci, Nil Acarali
The aim of this study is to produce the smart hydrogel to use insulin release for human body. p(HEMA-co-Eudragit L-100) hydrogels containing different ratios of 2-Hydroxyethyl methacrylate (HEMA) and Eudragait L-100 were synthesized by using ammonium persulfate (APS) as an initiator and ethylene glycol dimethacrylate (EGDMA) as a cross linker. The structures of hydrogels produced were characterized by using Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning electron microscope (SEM) analysis. In this way, optimum synthesis conditions were determined for p(HEMA-co-Eudragit L-100) hydrogels by using Taguchi method as an optimization method...
2018: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/29457330/modeling-suicide-in-bipolar-disorders
#4
REVIEW
Gin S Malhi, Tim Outhred, Pritha Das, Grace Morris, Amber Hamilton, Zola Mannie
INTRODUCTION: Suicide is a multicausal human behavior, with devastating and immensely distressing consequences. Its prevalence is estimated to be 20-30 times greater in patients with bipolar disorders than in the general population. The burden of suicide and its high prevalence in bipolar disorders make it imperative that our current understanding be improved to facilitate prediction of suicide and its prevention. In this review, we provide a new perspective on the process of suicide in bipolar disorder, in the form of a novel integrated model that is derived from extant knowledge and recent evidence...
February 19, 2018: Bipolar Disorders
https://www.readbyqxmd.com/read/29457243/raising-the-stakes-for-nondiscrimination-protections-in-the-aca
#5
Kristen Underhill
In the struggle over the durability of the Affordable Care Act, defenders of the ACA stand guard at many fronts. A major contribution of the ACA to nondiscrimination law, however, appears increasingly vulnerable. The ACA established significant new nondiscrimination protections for patients under section 1557 and its implementing regulations. Several of these regulations-including protections on the basis of gender identity and pregnancy termination-are now under reconsideration at the Department of Health and Human Services, after a nationwide injunction lasting almost a year...
January 2018: Hastings Center Report
https://www.readbyqxmd.com/read/29457142/cross-country-association-of-press-freedom-and-lgbt-freedom-with-prevalence-of-persons-living-with-hiv-implication-for-global-strategy-against-hiv-aids
#6
Xinguang Chen, Amy L Elliott, Shuang Wang
Background: Human behaviors are affected by attitudes and beliefs, which in turn are shaped by higher-level values to which we have ascribed. In this study, we explore the relationship between two higher-level values, press freedom and LGBT freedom, and HIV infection with national data at the population level. Methods: Data were the number of persons living with HIV (PLWH, n = 35,468,911) for 148 countries during 2011-15, press freedom index (PFI) determined by the Reporters Without Borders, and LGBT freedom index (LGBT-FI) based on laws regulating same-sex relationships and expression...
2018: Global Health Research and Policy
https://www.readbyqxmd.com/read/29456845/low-carbonyl-reductase-1-expression-is-associated-with-poor-prognosis-in-patients-with-oral-squamous-cell-carcinoma
#7
Ryota Yamanouchi, Koji Harada, Tarannum Ferdous, Yoshiya Ueyama
Carbonyl reductase 1 (CBR1) is an enzyme that catalyzes the reduction of numerous compounds by using NADPH-dependent oxidoreductase activity. Decreased expression of CBR1 is associated with disease progression and an unfavorable outcome in several types of malignancies. The purpose of the current study was to determine whether CBR1 expression could be a useful prognostic factor in patients with oral squamous cell carcinoma (OSCC). Therefore, its mechanisms of action were investigated in order to understand how CBR1 affects cancer cell behavior in vitro ...
March 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29456516/the-socio-communicative-development-of-preterm-infants-is-resistant-to-the-negative-effects-of-parity-on-maternal-responsiveness
#8
Ivete F R Caldas, Marilice F Garotti, Victor K M Shiramizu, Antonio Pereira
Humans are born completely dependent on adult care for survival. To get the necessary support, newborns rely on socio-communicative abilities which have both innate and learned components. Maternal responsiveness (MR), as a critical aspect of mother-infant interaction, is a robust predictor of the acquisition of socio-communicative abilities. However, maternal responsiveness (MR) is influenced by parity, since mothers rely on a limited capacity of cognitive control for efficient attachment with their offspring...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29456505/deletion-of-trace-amine-associated-receptor-1-attenuates-behavioral-responses-to-caffeine
#9
Michael D Schwartz, Jeremiah B Palmerston, Diana L Lee, Marius C Hoener, Thomas S Kilduff
Trace amines (TAs), endogenous amino acid metabolites that are structurally similar to the biogenic amines, are endogenous ligands for trace amine-associated receptor 1 (TAAR1), a GPCR that modulates dopaminergic, serotonergic, and glutamatergic activity. Selective TAAR1 full and partial agonists exhibit similar pro-cognitive, antidepressant- and antipsychotic-like properties in rodents and non-human primates, suggesting TAAR1 as a novel target for the treatment of neurological and psychiatric disorders. We previously reported that TAAR1 partial agonists are wake-promoting in rats and mice, and that TAAR1 knockout (KO) and overexpressing mice exhibit altered sleep-wake and EEG spectral composition...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29456496/how-do-acquired-political-identities-influence-our-neural-processing-toward-others-within-the-context-of-a-trust-game
#10
Chien-Te Wu, Yang-Teng Fan, Ye-Rong Du, Tien-Tun Yang, Ho-Ling Liu, Nai-Shing Yen, Shu-Heng Chen, Ray-May Hsung
Trust is essential for mutually beneficial human interactions in economic exchange and politics and people's social identities notably have dramatic effects on trust behaviors toward others. Previous literature concerning social identities generally suggests that people tend to show in-group favoritism toward members who share the same identity. However, how our brains process signals of identity while facing uncertain situations in interpersonal interactions remains largely unclear. To address this issue, we performed an fMRI experiment with 54 healthy adults who belonged to two identity groups of opposing political orientations...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29456190/pink1-phosphorylates-mic60-mitofilin-to-control-structural-plasticity-of-mitochondrial-crista-junctions
#11
Pei-I Tsai, Chin-Hsien Lin, Chung-Han Hsieh, Amanda M Papakyrikos, Min Joo Kim, Valerio Napolioni, Carmen Schoor, Julien Couthouis, Ruey-Meei Wu, Zbigniew K Wszolek, Dominic Winter, Michael D Greicius, Owen A Ross, Xinnan Wang
Mitochondrial crista structure partitions vital cellular reactions and is precisely regulated by diverse cellular signals. Here, we show that, in Drosophila, mitochondrial cristae undergo dynamic remodeling among distinct subcellular regions and the Parkinson's disease (PD)-linked Ser/Thr kinase PINK1 participates in their regulation. Mitochondria increase crista junctions and numbers in selective subcellular areas, and this remodeling requires PINK1 to phosphorylate the inner mitochondrial membrane protein MIC60/mitofilin, which stabilizes MIC60 oligomerization...
February 14, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29456169/kinematics-of-lower-limbs-during-walking-are-emulated-by-springy-walking-model-with-a-compliantly-connected-off-centered-curvy-foot
#12
Hyerim Lim, Sukyung Park
The dynamics of the center of mass (CoM) during walking and running at various gait conditions are well described by the mechanics of a simple passive spring loaded inverted pendulum (SLIP). Due to its simplicity, however, the current form of the SLIP model is limited at providing any further information about multi-segmental lower limbs that generate oscillatory CoM behaviors and their corresponding ground reaction forces. Considering that the dynamics of the CoM are simply achieved by mass-spring mechanics, we wondered whether any of the multi-joint motions could be demonstrated by simple mechanics...
February 8, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29456147/dynamic-interplay-of-value-and-sensory-information-in-high-speed-decision-making
#13
Kivilcim Afacan-Seref, Natalie A Steinemann, Annabelle Blangero, Simon P Kelly
In dynamic environments, split-second sensorimotor decisions must be prioritized according to potential payoffs to maximize overall rewards. The impact of relative value on deliberative perceptual judgments has been examined extensively [1-6], but relatively little is known about value-biasing mechanisms in the common situation where physical evidence is strong but the time to act is severely limited. In prominent decision models, a noisy but statistically stationary representation of sensory evidence is integrated over time to an action-triggering bound, and value-biases are affected by starting the integrator closer to the more valuable bound...
February 12, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29456140/visual-selective-attention-in-mice
#14
Lupeng Wang, Richard J Krauzlis
Visual selective attention is a fundamental cognitive ability that allows us to process relevant visual stimuli while ignoring irrelevant distracters and has been extensively studied in human and non-human primate subjects. Mice have emerged as a powerful animal model for studying aspects of the visual system but have not yet been shown to exhibit visual selective attention. Differences in the organization of the visual systems of primates and mice raise the possibility that selective visual attention might not be present in mice, at least not in the forms that are well established in primates...
February 8, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29456139/selective-attention-gates-the-interactive-crossmodal-coupling-between-perceptual-systems
#15
Silvia Convento, Md Shoaibur Rahman, Jeffrey M Yau
Sensory cortical systems often activate in parallel, even when stimulation is experienced through a single sensory modality [1-3]. Co-activations may reflect the interactive coupling between information-linked cortical systems or merely parallel but independent sensory processing. We report causal evidence consistent with the hypothesis that human somatosensory cortex (S1), which co-activates with auditory cortex during the processing of vibrations and textures [4-9], interactively couples to cortical systems that support auditory perception...
February 1, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29455088/parasite-susceptibility-in-an-amphibian-host-is-modified-by-salinization-and-predators
#16
Nicholas Buss, Jessica Hua
Secondary salinization represents a global threat to freshwater ecosystems. Salts, such as NaCl, can be toxic to freshwater organisms and may also modify the outcome of species interactions (e.g. host-parasite interactions). In nature, hosts and their parasites are embedded in complex communities where they face anthropogenic and biotic (i.e. predators) stressors that influence host-parasite interactions. As human populations grow, considering how anthropogenic and natural stressors interact to shape host-parasite interactions will become increasingly important...
February 15, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29455038/mechanical-and-degradation-property-improvement-in-a-biocompatible-mg-ca-sr-alloy-by-thermomechanical-processing
#17
Hunter B Henderson, Vidhya Ramaswamy, Alexander E Wilson-Heid, Michael S Kesler, Josephine B Allen, Michele V Manuel
Magnesium-based alloys have attracted interest as a potential material to comprise biomedical implants that are simultaneously high-strength and temporary, able to provide stabilization before degrading safely and able to be excreted by the human body. Many alloy systems have been evaluated, but this work reports on improved properties through hot extrusion of one promising alloy: Mg-1.0 wt% Ca-0.5 wt%Sr. This alloy has previously demonstrated promising toxicity and degradation properties in the as-cast and rolled conditions...
February 3, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29454734/management-of-arthropod-vector-data-social-and-ecological-dynamics-facing-the-one-health-perspective
#18
REVIEW
Giovanni Benelli, Mary Frances Duggan
Emerging infectious diseases (EIDs) are spread by direct and/or indirect contacts between a pathogen or parasite and their hosts. Arthropod vectors have evolved as excellent bloodsuckers, providing an elegant transportation mode for a wide number of infectious agents. The nature of pathogen and parasite transfer and the models used to predict how a disease might spread are magnified in complexity when an arthropod vector is part of the disease cycle. One Health is a worldwide strategy for expanding interdisciplinary collaborations and communications in all aspects of health care for humans, animals and the environment...
February 15, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29454635/sleep-behavior-and-eeg-oscillations-in-aged-dp-16-1yey-mice-a-down-syndrome-model
#19
J Levenga, D J Peterson, P Cain, C A Hoeffer
Down syndrome (DS) results from the triplication of genes located on human chromosome 21 (Hsa21). Though many cognitive and behavioral impairments are associated with DS, sleep disturbances remain poorly understood despite being a reported phenotype in approximately 60% of individuals diagnosed with DS. In this study, sleep and electroencephalography (EEG) oscillations were recorded from aged (12-14 mos.) Dp(16)1Yey/+ mice (Dp16), a mouse model of DS. We observed disrupted sleep demonstrated by increased activity during the dark phase and increased time awake at the expense of NREM sleep compared to wild-type mice...
February 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29454604/cytotoxic-and-inflammatory-effects-of-alendronate-and-zolendronate-on-human-osteoblasts-gingival-fibroblasts-and-osteosarcoma-cells
#20
Yahya Açil, Mia Leena Arndt, Aydin Gülses, Henning Wieker, Hendrik Naujokat, Mustafa Ayna, Jörg Wiltfang
OBJECTIVE: The aim of this paper was to assess the effects of zoledronate (ZOL) and alendronate (FOS) on apoptotic behavior and gene expression of pro- and inflammatory cytokines of three cell types (human osteoblasts, human gingival fibroblasts and human osteogenic sarcoma cell lines) during a period of 4 weeks. MATERIAL AND METHODS: Cell viability and proliferation was assessed via cell proliferation test (MTT), fluorescence diacetate analysis (FDA). Expression of inflammatory cytokines was investigated by using polymerase chain reaction...
January 10, 2018: Journal of Cranio-maxillo-facial Surgery
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