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https://www.readbyqxmd.com/read/28634722/three-novel-bile-alcohols-of-mature-male-sea-lamprey-petromyzon-marinus-act-as-chemical-cues-for-conspecifics
#1
Ke Li, Anne M Scott, Joseph J Riedy, Skye Fissette, Zoe E Middleton, Weiming Li
Sea lamprey, Petromyzon marinus, rely heavily on chemical cues that mediate their life history events, such as migration and reproduction. Here, we describe petromyzone A-C (1-3), three novel bile alcohols that are highly oxidized and sulfated, isolated from water conditioned with spermiated male sea lamprey. Structures of these compounds were unequivocally established by spectroscopic analyses and by comparison with spectra of known compounds. Electro-olfactogram recordings showed that 1 at 10(-11) M was stimulatory to the adult sea lamprey olfactory epithelium, while 2 and 3 were stimulatory at 10(-13) M...
June 20, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28634452/establishing-the-basis-for-mechanobiology-based-physical-therapy-protocols-to-potentiate-cellular-healing-and-tissue-regeneration
#2
REVIEW
Joanna L Ng, Mariana E Kersh, Sharon Kilbreath, M Knothe Tate
Life is mechanobiological: mechanical stimuli play a pivotal role in the formation of structurally and functionally appropriate body templates through mechanobiologically-driven cellular and tissue re/modeling. The body responds to mechanical stimuli engendered through physical movement in an integrated fashion, internalizing and transferring forces from organ, through tissue and cellular length scales. In the context of rehabilitation and therapeutic outcomes, such mechanical stimuli are referred to as mechanotherapy...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28633977/vascular-endothelial-cell-mechanosensing-new-insights-gained-from-biomimetic-microfluidic-models
#3
REVIEW
Kelsey M Gray, Kimberly M Stroka
In vivo, cells of the vascular system are subjected to various mechanical stimuli and have demonstrated the ability to adapt their behavior via mechanotransduction. Recent advances in microfluidic and "on-chip" techniques have provided the technology to study these alterations in cell behavior. Contrary to traditional in vitro assays such as transwell plates and parallel plate flow chambers, these microfluidic devices (MFDs) provide the opportunity to integrate multiple mechanical cues (e.g. shear stress, confinement, substrate stiffness, vessel geometry and topography) with in situ quantification capabilities...
June 17, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28633909/resolving-in-vivo-gene-expression-during-collective-cell-migration-using-an-integrated-rnascope-immunohistochemistry-and-tissue-clearing-method
#4
Jason A Morrison, Mary Cathleen McKinney, Paul M Kulesa
During collective cell migration individual cells display diverse behaviors that complicate our understanding of group cell decisions of direction and cohesion. In vivo gene and protein expression analyses would shed light on the underlying molecular choreography. However, this information has been limited due to difficulties to integrate single cell detection methods and the simultaneous readout of signals deep within the embryo. Here, we optimize and integrate multiplex fluorescence in situ hybridization by RNAscope, immunohistochemistry, and tissue clearing to visualize transcript and protein localization within single cells deep within intact chick embryos...
June 17, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28633887/visual-integration-of-fear-and-anger-emotional-cues-by-children-on-the-autism-spectrum-and-neurotypical-peers-an-eeg-study
#5
Evie Malaia, Debbie Cockerham, Katherine Rublein
Communication deficits in children with autism spectrum disorders (ASD) are often related to inefficient interpretation of emotional cues, which are conveyed visually through both facial expressions and body language (Apicella et al., 2012). The present study examined ASD behavioral and ERP responses to emotional expressions of anger and fear, as conveyed by the face and body. Behavioral results showed significantly faster response times for the ASD than for the typically developing (TD) group when processing fear, but not anger, in isolated face expressions, isolated body expressions, and in the integration of the two...
June 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28633656/children-s-physical-activity-during-a-segmented-school-week-results-from-a-quasi-experimental-education-outside-the-classroom-intervention
#6
Mikkel Bo Schneller, Jasper Schipperijn, Glen Nielsen, Peter Bentsen
BACKGROUND: Movement integration (MI) into traditional classroom teaching is a promising opportunity for children to increase physical activity (PA). Education outside the classroom (EOtC) can be regarded as MI, and has increased children's PA in case studies. The aim of this study is to investigate the effects of EOtC on children's PA by segmenting weekly activity-related behavior into a range of day types and domains. METHODS: In a quasi-experimental design, 33 classes were recruited and participants' PA was objectively measured using accelerometers taped to the lower back...
June 20, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28633102/an-integrated-assessment-of-ceftazidime-and-photoproducts-on-the-feeding-behavior-of-rotifers-from-exposure-to-post-exposure
#7
Yanhua Liu, Yaqi Wang, Jie Zhang, Liu Sun, Anqi Zhang, Oscar Lopez Torres, Ruixin Guo, Jianqiu Chen
Compared to traditional toxicological studies, which depict the dose-effect of contaminants themselves on organisms at the given time, the exposure and post-exposure impacts of antibiotic ceftazidime and its photoproducts are carried out to systematically evaluate the environmental risk fate of ceftazidime in aquatic environments. For the exposure process, the promotion effect of ceftazidime on the feeding behavior of the rotifers decreased when the target compound was irradiated by sunlight, and the promotion effect was converted into inhibition effect, which indicated that the highest toxicity of ceftazidime on the feeding behavior of the rotifers was found after UV-B irradiation...
June 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28632597/leadership-communication-and-negotiation-across-a-diverse-workforce-an-aoa-critical-issues-symposium
#8
Denis R Clohisy, Michael J Yaszemski, Joanne Lipman
The current workforce in the United States is rapidly changing and is increasingly inclusive of individuals from a broad range of ages, ethnicities, and cultural backgrounds. Engaging and leading a diverse workforce creates great opportunities for innovation and adaptation in our evolving medical economic and clinical care delivery environment. For optimal engagement of employees and partners, orthopaedic surgeons must develop the necessary skills for executing change inside complex organizations and across teams composed of a variety of providers and skilled workers...
June 21, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28632462/examining-changes-in-negative-mood-regulation-expectancies-ptsd-depression-and-substance-use-following-integrated-cognitive-behavioral-therapy
#9
Emma Y Siegel, Moira Haller, Ruifeng Cui, Ryan S Trim, Susan R Tate, Sonya B Norman
BACKGROUND: The comorbidity of depression, posttraumatic stress disorder (PTSD), and substance use disorder (SUD) is common among veterans. Some research indicates that poor expectancies for negative mood regulation (NMR) may be associated with depression, trauma symptoms, and substance abuse. However, little is known about whether NMR expectancies can be changed through psychotherapy and if so, whether changes in NMR expectancies are related to changes in depression, PTSD, and SUD. METHODS: Therefore, this study examined 1) whether negative mood regulation (NMR) expectancies correlate with depression, PTSD, and SUD symptoms, 2) whether NMR expectancies improve after group integrated cognitive behavioral therapy (ICBT) and 3) whether these changes were associated with improvements in depression, PTSD, and SUD symptoms in a sample of 123 veterans (89% male, 64% non-Hispanic Caucasian) recruited from a Department of Veteran Affairs (VA) Healthcare System...
June 20, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28632268/ball-in-ball-zro2-nanostructure-for-simultaneous-ct-imaging-and-highly-efficient-synergic-microwave-ablation-and-tri-stimuli-responsive-chemotherapy-of-tumors
#10
Dan Long, Meng Niu, Longfei Tan, Changhui Fu, Xiangling Ren, Ke Xu, Hongshan Zhong, Jingzhuo Wang, Laifeng Li, Xianwei Meng
Combined thermo-chemotherapy displays outstanding synergically therapeutic efficiency when compared with standalone thermotherapy and chemotherapy. Herein, we developed a smart tri-stimuli-responsive drug delivery system involving X@BB-ZrO2 NPs (X represents loaded IL, DOX, keratin and tetradecanol) based on novel ball-in-ball-structured ZrO2 nanoparticles (BB-ZrO2 NPs). The microwave energy conversion efficiency of BB-ZrO2 NPs was 41.2% higher than that of traditional single-layer NPs due to the cooperative action of self-reflection and spatial confinement effect of the special two-layer hollow nanostructure...
June 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28632240/body-related-shame-and-guilt-predict-physical-activity-in-breast-cancer-survivors-over-time
#11
Andrée L Castonguay, Carsten Wrosch, Eva Pila, Catherine M Sabiston
PURPOSE/OBJECTIVES: To test body-related shame and guilt as predictors of breast cancer survivors' (BCS') moderate to vigorous intensity physical activity (MVPA) during six months and to examine motivational regulations as mediators of this association.
. DESIGN: Prospective study.
. SETTING: Survivors were recruited through advertisements and oncologist referrals from medical clinics and hospitals in Montreal, Quebec, Canada.
. SAMPLE: 149 female BCS...
July 1, 2017: Oncology Nursing Forum
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/28631964/evidence-based-assessment-of-adhd-diagnosis-in-children-and-adolescents
#13
Xuechun Zhou, Cecil R Reynolds, Jianjun Zhu, Randy W Kamphaus, Ou Zhang
This study illustrates the accuracy and efficiency of using an evidence-based assessment (EBA) strategy for diagnosis of attention-deficit/hyperactivity disorder (ADHD) by integrating the scale scores obtained on BASC-3 teacher and parent rating scales. The examined process used empirical diagnostic likelihood ratios (DLRs) derived from a sample of children with ADHD (N = 339) matched on demographic characteristics from the normative sample. The results show that behavioral scales of executive functioning and functional communication provided incremental utility in ADHD diagnosis...
February 22, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28631013/in-vivo-evaluation-of-the-bone-integration-of-coated-poly-vinyl-alcohol-hydrogel-fiber-implants
#14
David Moreau, Arthur Villain, Manon Bachy, Henry Proudhon, David N Ku, Didier Hannouche, Hervé Petite, Laurent Corté
Recently, it has been shown that constructs of poly(vinyl alcohol) (PVA) hydrogel fibers reproduce closely the tensile behavior of ligaments. However, the biological response to these systems has not been explored yet. Here, we report the first in vivo evaluation of these implants and focus on the integration in bone, using a rabbit model of bone tunnel healing. Implants consisted in bundles of PVA hydrogel fibers embedded in a PVA hydrogel matrix. Half of the samples were coated with a composite coating of hydroxyapatite (HA) particles embedded in PVA hydrogel...
August 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28630968/designing-self-powered-materials-systems-that-perform-pattern-recognition
#15
Yan Fang, Victor V Yashin, Steven P Levitan, Anna C Balazs
Inspired by the advances in both materials and computer science, we describe efforts to design "materials that compute" where the material and the computer are the same entity. Using theory and simulation, we devise systems that integrate the behavior of self-oscillating gels and fundamental concepts from oscillator-based computing. We specifically focus on gels that undergo the Belousov-Zhabotinsky (BZ) reaction and thus exhibit self-sustained oscillations. In our models, we couple the BZ gel to an overlaying piezoelectric (PZ) cantilever to create a BZ-PZ unit...
June 20, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28630826/predicting-the-effects-of-interventions-a-tutorial-on-the-disequilibrium-model
#16
Kenneth W Jacobs, Zachary H Morford, James E King, Linda J Hayes
The disequilibrium approach to reinforcement and punishment, derived from the probability-differential hypothesis and response deprivation hypothesis, provides a number of potentially useful mathematical models for practitioners. The disequilibrium approach and its accompanying models have proven effective in the prediction and control of behavior, yet they have not been fully espoused and integrated into clinical practice. The purpose of this tutorial is to detail the disequilibrium approach and adapt its mathematical models for use as a tool in applied settings...
June 2017: Behavior Analysis in Practice
https://www.readbyqxmd.com/read/28630661/intrainsular-connectivity-and-somatosensory-responsiveness-in-young-children-with-asd
#17
Michelle D Failla, Brittany R Peters, Haleh Karbasforoushan, Jennifer H Foss-Feig, Kimberly B Schauder, Brynna H Heflin, Carissa J Cascio
BACKGROUND: The human somatosensory system comprises dissociable paths for discriminative and affective touch, reflected in separate peripheral afferent populations and distinct cortical targets. Differences in behavioral and neural responses to affective touch may have an important developmental role in early social experiences, which are relevant for autism spectrum disorder (ASD). METHODS: Using probabilistic tractography, we compared the structural integrity of white matter pathways for discriminative and affective touch in young children with ASD and their typically developing (TD) peers...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28630568/the-effects-of-a-self-efficacy-intervention-on-exercise-behavior-of-fitness-club-members-in-52-weeks-and-long-term-relationships-of-transtheoretical-model-constructs
#18
Jan Middelkamp, Maaike van Rooijen, Peter Wolfhagen, Bert Steenbergen
The transtheoretical model of behavior change (TTM) is often used to understand changes in health-related behavior, like exercise. Exercise behavior in fitness clubs is an understudied topic, but preliminary studies showed low frequencies and large numbers of drop-out. An initial 12-week self-efficacy intervention reported significant effects on exercise behavior. The objective of this follow up study is testing effects on exercise behavior over 52 weeks and the long-term relationships of all TTM constructs...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28630037/a-mobile-app-for-the-self-management-of-type-1-diabetes-among-adolescents-a-randomized-controlled-trial
#19
Shivani Goyal, Caitlin A Nunn, Michael Rotondi, Amy B Couperthwaite, Sally Reiser, Angelo Simone, Debra K Katzman, Joseph A Cafazzo, Mark R Palmert
BACKGROUND: While optimal blood glucose control is known to reduce the long-term complications associated with type 1 diabetes mellitus, adolescents often struggle to achieve their blood glucose targets. However, their strong propensity toward technology presents a unique opportunity for the delivery of novel self-management interventions. To support type 1 diabetes self-management in this population, we developed the diabetes self-management app bant, which included wireless blood glucose reading transfer, out-of-range blood glucose trend alerts, coaching around out-of-range trend causes and fixes, and a point-based incentive system...
June 19, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28629064/advanced-bredigite-containing-magnesium-matrix-composites-for-biodegradable-bone-implant-applications
#20
Sina Naddaf Dezfuli, Zhiguang Huan, Arjan Mol, Sander Leeflang, Jiang Chang, Jie Zhou
The present research was aimed at developing magnesium-matrix composites that could allow effective control over their physiochemical and mechanical responses when in contact with physiological solutions. A biodegradable, bioactive ceramic - bredigite was chosen as the reinforcing phase in the composites, based on the hypothesis that the silicon- and magnesium-containing ceramic could protect magnesium from fast corrosion and at the same time stimulate cell proliferation. Methods to prepare composites with integrated microstructures - a prerequisite to achieve controlled biodegradation were developed...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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