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https://www.readbyqxmd.com/read/28594281/are-you-smiling-or-have-i-seen-you-before-familiarity-makes-faces-look-happier
#1
Evan W Carr, Timothy F Brady, Piotr Winkielman
It is clear that unreinforced repetition (familiarization) influences affective responses to social stimuli, but its effects on the perception of facial emotion are unknown. Reporting the results of two experiments, we show for the first time that repeated exposure enhances the perceived happiness of facial expressions. In Experiment 1, using a paradigm in which subjects' responses were orthogonal to happiness in order to avoid response biases, we found that faces of individuals who had previously been shown were deemed happier than novel faces...
June 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28500272/probing-the-lithium-response-pathway-in-hipscs-implicates-the-phosphoregulatory-set-point-for-a-cytoskeletal-modulator-in-bipolar-pathogenesis
#2
Brian T D Tobe, Andrew M Crain, Alicia M Winquist, Barbara Calabrese, Hiroko Makihara, Wen-Ning Zhao, Jasmin Lalonde, Haruko Nakamura, Glenn Konopaske, Michelle Sidor, Cameron D Pernia, Naoya Yamashita, Moyuka Wada, Yuuka Inoue, Fumio Nakamura, Steven D Sheridan, Ryan W Logan, Michael Brandel, Dongmei Wu, Joshua Hunsberger, Laurel Dorsett, Cordulla Duerr, Ranor C B Basa, Michael J McCarthy, Namrata D Udeshi, Philipp Mertins, Steven A Carr, Guy A Rouleau, Lina Mastrangelo, Jianxue Li, Gustavo J Gutierrez, Laurence M Brill, Nikolaos Venizelos, Guang Chen, Jeffrey S Nye, Husseini Manji, Jeffrey H Price, Colleen A McClung, Hagop S Akiskal, Martin Alda, De-Maw M Chuang, Joseph T Coyle, Yang Liu, Yang D Teng, Toshio Ohshima, Katsuhiko Mikoshiba, Richard L Sidman, Shelley Halpain, Stephen J Haggarty, Yoshio Goshima, Evan Y Snyder
The molecular pathogenesis of bipolar disorder (BPD) is poorly understood. Using human-induced pluripotent stem cells (hiPSCs) to unravel such mechanisms in polygenic diseases is generally challenging. However, hiPSCs from BPD patients responsive to lithium offered unique opportunities to discern lithium's target and hence gain molecular insight into BPD. By profiling the proteomics of BDP-hiPSC-derived neurons, we found that lithium alters the phosphorylation state of collapsin response mediator protein-2 (CRMP2)...
May 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28486752/exosomes-contribute-to-endothelial-integrity-and-acute-chest-syndrome-risk-preliminary-findings
#3
Gabrielle Lapping-Carr, Abdelnaby Khalyfa, Stephanie Rangel, Wendy Darlington, Eric C Beyer, Radhika Peddinti, John M Cunningham, David Gozal
BACKGROUND: Acute Chest Syndrome (ACS) is one of the leading causes of death among children with Sickle Cell Disease (SCD). Disruption of microvascular integrity is critical to the pathophysiology of ACS, but the factors governing its phenotypic variability are incompletely understood. Because circulating exosomes have been implicated in vascular dysfunction in various diseases, we hypothesized that exosomes induce endothelial dysfunction in patients who experience ACS. PROCEDURE: Cross-sectional cohort study including 33 outpatients with SCD (without new health-related complaints or recent transfusions) and a cohort of control patients...
May 9, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28440926/sources-and-dispersive-modes-of-micro-fibers-in-the-environment
#4
Steve A Carr
Understanding the sources and distribution of microfibers (MFs) in the environment is critical if control and remediation measures are to be effective. Microfibers comprise an overwhelming fraction (>85%) of microplastic debris found on shorelines around the world. Although primary sources have not been fully vetted, until recently it was widely believed that domestic laundry discharges were the major source. It was also thought that synthetic fibers and particles having dimensions <5 mm easily bypassed filtration and other solid separation processes at wastewater treatment plants (WWTPs) and entered oceans and surface waters...
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28423062/filamentous-fungal-carbon-catabolite-repression-supports-metabolic-plasticity-and-stress-responses-essential-for-disease-progression
#5
Sarah R Beattie, Kenneth M K Mark, Arsa Thammahong, Laure Nicolas Annick Ries, Sourabh Dhingra, Alayna K Caffrey-Carr, Chao Cheng, Candice C Black, Paul Bowyer, Michael J Bromley, Joshua J Obar, Gustavo H Goldman, Robert A Cramer
Aspergillus fumigatus is responsible for a disproportionate number of invasive mycosis cases relative to other common filamentous fungi. While many fungal factors critical for infection establishment are known, genes essential for disease persistence and progression are ill defined. We propose that fungal factors that promote navigation of the rapidly changing nutrient and structural landscape characteristic of disease progression represent untapped clinically relevant therapeutic targets. To this end, we find that A...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28396388/altering-the-allosteric-pathway-in-igps-suppresses-millisecond-motions-and-catalytic-activity
#6
George P Lisi, Kyle W East, Victor S Batista, J Patrick Loria
Imidazole glycerol phosphate synthase (IGPS) is a V-type allosteric enzyme, meaning that its catalytic rate is critically dependent on activation by its allosteric ligand, N'-[(5'-phosphoribulosyl)formimino]-5-aminoimidazole-4-carboxamide ribonucleotide (PRFAR). The allosteric mechanism of IGPS is reliant on millisecond conformational motions for efficient catalysis. We engineered four mutants of IGPS designed to disrupt millisecond motions and allosteric coupling to identify regions that are critical to IGPS function...
April 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28387346/plk1-regulates-the-repressor-function-of-foxm1b-by-inhibiting-its-interaction-with-the-retinoblastoma-protein
#7
Nishit K Mukhopadhyay, Vaibhav Chand, Akshay Pandey, Dragana Kopanja, Janai R Carr, Yi-Ju Chen, Xiubei Liao, Pradip Raychaudhuri
FoxM1b is a cell cycle-regulated transcription factor, whose over-expression is a marker for poor outcome in cancers. Its transcriptional activation function requires phosphorylation by Cdk1 or Cdk2 that primes FoxM1b for phosphorylation by Plk1, which triggers association with the co-activator CBP. FoxM1b also possesses transcriptional repression function. It represses the mammary differentiation gene GATA3 involving DNMT3b and Rb. We investigated what determines the two distinct functions of FoxM1b: activation and repression...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28385571/aging-mobility-impairments-and-subjective-wellbeing
#8
Vicki A Freedman, Deborah Carr, Jennifer C Cornman, Richard E Lucas
BACKGROUND: Wellbeing is often described as U-shaped over the life course, suggesting an apparent paradox that wellbeing remains high at older ages despite increases in impairments. OBJECTIVE/HYPOTHESES: We explore associations among age, lower body impairments-one of the most common late-life impairments-and three measures of wellbeing: life satisfaction, emotional wellbeing and somatic wellbeing. We hypothesize that age effects are positive, become stronger once lower body impairments are controlled, and are concentrated among those who have maintained their mobility...
March 22, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28346141/insights-into-electrosensory-organ-development-physiology-and-evolution-from-a-lateral-line-enriched-transcriptome
#9
Melinda S Modrell, Mike Lyne, Adrian R Carr, Harold H Zakon, David Buckley, Alexander S Campbell, Marcus C Davis, Gos Micklem, Clare Vh Baker
The anamniote lateral line system, comprising mechanosensory neuromasts and electrosensory ampullary organs, is a useful model for investigating the developmental and evolutionary diversification of different organs and cell types. Zebrafish neuromast development is increasingly well understood, but neither zebrafish nor Xenopus is electroreceptive and our molecular understanding of ampullary organ development is rudimentary. We have used RNA-seq to generate a lateral line-enriched gene-set from late-larval paddlefish (Polyodon spathula)...
March 27, 2017: ELife
https://www.readbyqxmd.com/read/28295099/sensitivity-evaluation-of-quantitative-phase-imaging-a-study-of-wavelength-shifting-interferometry
#10
Shichao Chen, Chengshuai Li, Yizheng Zhu
Sensitivity is a critical figure of merit to quantify measurement performance in quantitative phase imaging. It is affected by various noise sources in the system and by signal processing algorithms. Here we propose a three-level framework for sensitivity evaluation, including the Cramér-Rao bound (CRB), algorithmic sensitivity, and experimental sensitivity. Comparing the first two determines the theoretical efficiency of an algorithm, while inspecting the gap between the latter two reveals system efficiency...
March 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28259727/vision-of-the-body-improves-inter-hemispheric-integration-of-tactile-motor-responses
#11
Luigi Tamè, Alex Carr, Matthew R Longo
Sensory input from and motor output to the two sides of the body needs to be continuously integrated between the two cerebral hemispheres. This integration can be measured through its cost in terms of processing speed. In simple detection tasks, reaction times (RTs) are faster when stimuli are presented to the side of the body ipsilateral to the body part used to respond. This advantage - the contralateral-ipsilateral difference (also known as the crossed-uncrossed difference: CUD) - is thought to reflect inter-hemispheric interactions needed for sensorimotor information to be integrated between the two hemispheres...
April 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28257503/depletion-of-enteric-bacteria-diminishes-leukocyte-infiltration-following-doxorubicin-induced-small-intestinal-damage-in-mice
#12
Jacquelyn S Carr, Stephanie King, Christopher M Dekaney
BACKGROUND & AIMS: While enteric bacteria have been shown to play a critical role in other forms of intestinal damage, their role in mediating the response to the chemotherapeutic drug Doxorubicin (Doxo) is unclear. In this study, we used a mouse model of intestinal bacterial depletion to evaluate the role enteric bacteria play in mediating Doxo-induced small intestinal damage and, more specifically, in mediating chemokine expression and leukocyte infiltration following Doxo treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28228285/mass-spectrometry-profiling-of-hla-associated-peptidomes-in-mono-allelic-cells-enables-more-accurate-epitope-prediction
#13
Jennifer G Abelin, Derin B Keskin, Siranush Sarkizova, Christina R Hartigan, Wandi Zhang, John Sidney, Jonathan Stevens, William Lane, Guang Lan Zhang, Thomas M Eisenhaure, Karl R Clauser, Nir Hacohen, Michael S Rooney, Steven A Carr, Catherine J Wu
Identification of human leukocyte antigen (HLA)-bound peptides by liquid chromatography-tandem mass spectrometry (LC-MS/MS) is poised to provide a deep understanding of rules underlying antigen presentation. However, a key obstacle is the ambiguity that arises from the co-expression of multiple HLA alleles. Here, we have implemented a scalable mono-allelic strategy for profiling the HLA peptidome. By using cell lines expressing a single HLA allele, optimizing immunopurifications, and developing an application-specific spectral search algorithm, we identified thousands of peptides bound to 16 different HLA class I alleles...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28215810/the-impact-of-pre-restoration-land-use-and-disturbance-on-sediment-structure-hydrology-and-the-sediment-geochemical-environment-in-restored-saltmarshes
#14
Kate L Spencer, Simon J Carr, Lucy M Diggens, James A Tempest, Michelle A Morris, Gemma L Harvey
Saltmarshes are being lost or degraded as a result of human activity resulting in loss of critical ecosystem services including the provision of wild species diversity, water quality regulation and flood regulation. To compensate, saltmarshes are being restored or re-created, usually driven by legislative requirements for increased habitat diversity, flood regulation and sustainable coastal defense. Yet, there is increasing evidence that restoration may not deliver anticipated ecosystem services; this is frequently attributed to poor drainage and sediment anoxia...
February 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28125659/biodiversity-areas-under-threat-overlap-of-climate-change-and-population-pressures-on-the-world-s-biodiversity-priorities
#15
Juliann E Aukema, Narcisa G Pricope, Gregory J Husak, David Lopez-Carr
Humans and the ecosystem services they depend on are threatened by climate change. Places with high or growing human population as well as increasing climate variability, have a reduced ability to provide ecosystem services just as the need for these services is most critical. A spiral of vulnerability and ecosystem degradation often ensues in such places. We apply different global conservation schemes as proxies to examine the spatial relation between wet season precipitation, population change over three decades, and natural resource conservation...
2017: PloS One
https://www.readbyqxmd.com/read/28125254/is-that-a-human-categorization-dis-fluency-drives-evaluations-of-agents-ambiguous-on-human-likeness
#16
Evan W Carr, Galit Hofree, Kayla Sheldon, Ayse P Saygin, Piotr Winkielman
A fundamental and seemingly unbridgeable psychological boundary divides humans and nonhumans. Essentialism theories suggest that mixing these categories violates "natural kinds." Perceptual theories propose that such mixing creates incompatible cues. Most theories suggest that mixed agents, with both human and nonhuman features, obligatorily elicit discomfort. In contrast, we demonstrate top-down, cognitive control of these effects-such that the discomfort with mixed agents is partially driven by disfluent categorization of ambiguous features that are pertinent to the agent...
April 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28116356/tambora-and-the-mackerel-year-phenology-and-fisheries-during-an-extreme-climate-event
#17
Karen E Alexander, William B Leavenworth, Theodore V Willis, Carolyn Hall, Steven Mattocks, Steven M Bittner, Emily Klein, Michelle Staudinger, Alexander Bryan, Julianne Rosset, Benjamin H Carr, Adrian Jordaan
Global warming has increased the frequency of extreme climate events, yet responses of biological and human communities are poorly understood, particularly for aquatic ecosystems and fisheries. Retrospective analysis of known outcomes may provide insights into the nature of adaptations and trajectory of subsequent conditions. We consider the 1815 eruption of the Indonesian volcano Tambora and its impact on Gulf of Maine (GoM) coastal and riparian fisheries in 1816. Applying complex adaptive systems theory with historical methods, we analyzed fish export data and contemporary climate records to disclose human and piscine responses to Tambora's extreme weather at different spatial and temporal scales while also considering sociopolitical influences...
January 2017: Science Advances
https://www.readbyqxmd.com/read/28095684/effect-of-the-protein-corona-on-antibody-antigen-binding-in-nanoparticle-sandwich-immunoassays
#18
Helena de Puig, Irene Bosch, Marc Carré-Camps, Kimberly Hamad-Schifferli
We investigated the effect of the protein corona on the function of nanoparticle (NP) antibody (Ab) conjugates in dipstick sandwich immunoassays. Ab specific for Zika virus nonstructural protein 1 (NS1) were conjugated to gold NPs, and another anti-NS1 Ab was immobilized onto the nitrocellulose membrane. Sandwich immunoassay formation was influenced by whether the strip was run in corona forming conditions, i.e., in human serum. Strips run in buffer or pure solutions of bovine serum albumin exhibited false positives, but those run in human serum did not...
January 18, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28074831/rgs9-2-modulates-responses-to-oxycodone-in-pain-free-and-chronic-pain-states
#19
Sevasti Gaspari, Valeria Cogliani, Lefteris Manouras, Ethan M Anderson, Vasiliki Mitsi, Kleopatra Avrampou, Fiona B Carr, Venetia Zachariou
Regulator of G-protein signaling 9-2 (RGS9-2) is a striatal-enriched signal-transduction modulator known to have a critical role in the development of addiction-related behaviors following exposure to psychostimulants or opioids. RGS9-2 controls the function of several G-protein-coupled receptors, including dopamine receptor and mu opioid receptor (MOR). We previously showed that RGS9-2 complexes negatively control morphine analgesia, and promote the development of morphine tolerance. In contrast, RGS9-2 positively modulates the actions of other opioid analgesics, such as fentanyl and methadone...
June 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28071719/quantitative-proteomic-profiling-of-the-extracellular-matrix-of-pancreatic-islets-during-the-angiogenic-switch-and-insulinoma-progression
#20
Alexandra Naba, Karl R Clauser, D R Mani, Steven A Carr, Richard O Hynes
The angiogenic switch, the time at which a tumor becomes vascularized, is a critical step in tumor progression. Indeed, without blood supply, tumors will fail to grow beyond 1 mm(3) and are unlikely to disseminate. The extracellular matrix (ECM), a major component of the tumor microenvironment, is known to undergo significant changes during angiogenesis and tumor progression. However the extent of these changes remains unknown. In this study, we used quantitative proteomics to profile the composition of the ECM of pancreatic islets in a mouse model of insulinoma characterized by a precisely timed angiogenic switch...
January 10, 2017: Scientific Reports
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