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https://www.readbyqxmd.com/read/29334689/-stick-with-your-own-kind-or-hang-with-the-locals-implications-of-shoaling-strategy-for-tropical-reef-fish-on-a-range-expansion-frontline
#1
Shannen M Smith, Rebecca J Fox, David J Booth, Jennifer M Donelson
Range shifts of tropical marine species to temperate latitudes are predicted to increase as a consequence of climate change. To date, the research focus on climate-mediated range shifts has been predominately dealt with the physiological capacity of tropical species to cope with the thermal challenges imposed by temperate latitudes. Behavioural traits of individuals in the novel temperate environment have not previously been investigated, however, they are also likely to play a key role in determining the establishment success of individual species at the range-expansion forefront...
January 15, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29334672/oxidative-and-interactive-challenge-of-cadmium-and-ocean-acidification-on-the-smooth-scallop-flexopecten-glaber
#2
Alessandro Nardi, Maura Benedetti, Daniele Fattorini, Francesco Regoli
Ocean acidification (OA) may affect sensitivity of marine organisms to metal pollution modulating chemical bioavailability, bioaccumulation and biological responsiveness of several cellular pathways. In this study, the smooth scallop Flexopecten glaber was exposed to various combinations of reduced pH (pH/pCO2 7.4/∼3000 μatm) and Cd (20 μg/L). The analyses on cadmium uptake were integrated with those of a wide battery of biomarkers including metallothioneins, single antioxidant defenses and total oxyradical scavenging capacity in digestive gland and gills, lysosomal membrane stability and onset of genotoxic damage in haemocytes...
January 8, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29334667/lithium-a-classic-drug-in-psychiatry-improves-nilotinib-mediated-antileukemic-effects
#3
Janaína Peixoto-da-Silva, Andrana K Calgarotto, Katiucha R Rocha, Caroline Palmeira-Dos-Santos, Soraya S Smaili, Gustavo J S Pereira, Fernando V Pericole, Adriana da Silva S Duarte, Sara T O Saad, Claudia Bincoletto
Although Tyrosine kinase inhibitors (TKIs) that target Bcr-Abl play a key role in Chronic Myeloid Leukemia (CML) therapy, they do not eradicate CML-initiating cells, which lead to the emergence of drug resistance. Here we used the lithium, a GSK-3 inhibitor, to attempt to potentiate the effects of nilotinib against leukemia cells. For this purpose, a K562 leukemia cell line and bone marrow cells from untreated Chronic Myeloid Leukemia (CML) patients, prior to any exposure to TKIs, were used as a model. Our results demonstrated that the combination of lithium + nilotinib (L + N) induced K562-cell death and cleaved caspase-3 when compared to lithium or nilotinib alone, accompanied by GSK-3β phosphorylation and Bcr-Abl oncoprotein levels reduction...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29334646/17%C3%AE-estradiol-improves-the-efficacy-of-exploited-autologous-bone-marrow-derived-mesenchymal-stem-cells-in-non-union-radial-defect-healing-a-rabbit-model
#4
Delaram Zamani Mazdeh, Pezhman Mirshokraei, Mohammadreza Emami, Ali Mirshahi, Iraj Karimi
Exploiting mesenchymal stem cells (MSCs) appears to be an appealing alternative to the traditional clinical approach in the treatment of non-union bone defects. It has been shown that 17β-estradiol improves the osteogenesis and proliferation potential of the MSCs via estrogen receptors. We investigated the effect of 17β-estradiol on exploiting autologous BMSCs (bone marrow-derived MSCs) for the purpose of healing of radial non-union segmental defect in rabbit. Twenty rabbits were divided into 4 experimental groups: 1...
December 28, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29334393/facile-fabrication-and-characterization-of-two-dimensional-bismuth-iii-sulfide-nanosheets-for-high-performance-photodetector-applications-under-ambient-conditions
#5
Weichun Huang, Chenyang Xing, Yunzheng Wang, Zhongjun Li, Leiming Wu, Dingtao Ma, Xiaoyu Dai, Yuanjiang Xiang, Jianqing Li, Dianyuan Fan, Han Zhang
Two-dimensional (2D) bismuth(iii) sulfide (Bi2S3) nanosheets as non-toxic graphene-like nanomaterials were successfully fabricated by a facile liquid phase exfoliation (LPE) method. A robust photodetector employing a Bi2S3 nanosheet film has been fabricated for the first time via a facile fabrication process on an ITO-coated glass. UV-Vis and Raman spectroscopy techniques were carried out and they confirmed the inherent optical and physical properties of Bi2S3 nanosheets. Photoelectrochemical (PEC) measurements demonstrate that a significantly higher photocurrent density (42 μA cm-2) and enhanced photoresponsivity (210 μA W-1), at a lower bias potential in alkaline solution, of the Bi2S3 nanosheet-based photodetector are achieved, compared with those of other 2D nanomaterial-based photodetectors under light irradiation...
January 15, 2018: Nanoscale
https://www.readbyqxmd.com/read/29334345/arm-crank-ergometry-improves-cardiovascular-disease-risk-factors-and-community-mobility-independent-of-body-composition-in-high-motor-complete-spinal-cord-injury
#6
James J Bresnahan, Gary J Farkas, Jody L Clasey, James W Yates, David R Gater
OBJECTIVE: Evaluate the effect of aerobic exercise using arm crank ergometry (ACE) in high motor complete (ISNCSCI A/B) spinal cord injury (SCI) as primarily related to cardiovascular disease (CVD) risk factors and functional mobility and secondarily to body composition and metabolic profiles. DESIGN: Longitudinal interventional study at an academic medical center. METHODS: Ten previously untrained participants (M8/F2, Age 36.7 y ± 10.1, BMI 24...
January 15, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29334338/at-home-genital-nerve-stimulation-for-individuals-with-sci-and-neurogenic-detrusor-overactivity-a-pilot-feasibility-study
#7
Dennis J Bourbeau, Kenneth J Gustafson, Steven W Brose
OBJECTIVE: Neurogenic bladder dysfunction, including neurogenic detrusor overactivity (NDO) is one of the most clinically significant problems for persons with spinal cord injury (SCI), affecting health and quality of life. Genital nerve stimulation (GNS) can acutely inhibit NDO-related reflex bladder contractions and increase bladder capacity. However, it is unknown if GNS can improve urinary continence or help meet individuals' bladder management goals during sustained use, which is required for GNS to be clinically effective...
January 15, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29334324/the-rite-of-passage-of-becoming-a-humanitarian-health-worker-experiences-of-retention-in-sweden
#8
Sara Albuquerque, Anneli Eriksson, Helle M Alvesson
BACKGROUND: Low retention of humanitarian workers poses constraints on humanitarian organisations' capacity to respond effectively to disasters. Research has focused on reasons for humanitarian workers leaving the sector, but little is known about the factors that can elucidate long-term commitment. OBJECTIVE: To understand what motivates and supports experienced humanitarian health workers to remain in the sector. METHODS: Semi-structured interviews were conducted with 10 experienced nurses who had been on at least three field missions with Médecins Sans Frontières Sweden...
2018: Global Health Action
https://www.readbyqxmd.com/read/29334314/on-the-intrinsic-constraint-of-bacterial-growth-rate-m-tuberculosis-s-view-of-the-protein-translation-capacity
#9
Manlu Zhu, Xiongfeng Dai
In nature, the maximal growth rates vary widely among different bacteria species. Fast-growing bacteria species such as Escherichia coli can have a shortest generation time of 20 min. Slow-growing bacteria species are perhaps best known for Mycobacterium tuberculosis, a human pathogen with a generation time being no less than 16 h. Despite of the significant progress made on understanding the pathogenesis of M. tuberculosis, we know little on the origin of its intriguingly slow growth. From a global view, the intrinsic constraint of the maximal growth rate of bacteria remains to be a fundamental question in microbiology...
January 15, 2018: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/29334283/effects-of-an-exercise-program-on-the-physiological-biological-and-psychological-profiles-in-patients-with-mood-disorders-a-pilot-study
#10
Mario Leone, Daniel Lalande, Linda Thériault, Émilia Kalinova, Audrey Fortin
OBJECTIVE: The objective of this study is to assess the impact of an 8-week physical training program on physiological, biological and psychological profiles in individual with mood disorders. METHODS: Seven patients participated in the study. Patients were trained twice weekly (75 min/session) for 8 weeks. The training program aimed to improve muscular and cardiorespiratory reserves as well as functional capacity. Bioassays were also measured (lipid profile, blood glucose and cortisol)...
January 15, 2018: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/29334256/differential-content-of-secondary-metabolites-in-diploid-and-tetraploid-cytotypes-of-siegesbeckia-orientalis-l
#11
Saroj Kumar Pradhan, Raghbir Chand Gupta, Rajesh Kumar Goel
Siegesbeckia orientalis L. is an annual herb widely distributed throughout the world and has many medicinal properties. In Chinese traditional system, it is popularly known as Xi-Xian and used for its anti-inflammatory properties. In the present study, two cytotypes (diploid and tetraploid) have been investigated for their secondary metabolites. The different plant parts have been explored in terms of total phenolics, total flavonoids, DPPH radical scavenging acitivity and total antioxidant capacity. Out of different plant parts, leaves have the maximum amount of secondary metabolites and antioxidant potential...
January 15, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29334192/digitalizing-self-assembled-chiral-superstructures-for-optical-vortex-processing
#12
Peng Chen, Ling-Ling Ma, Wei Duan, Ji Chen, Shi-Jun Ge, Zhi-Han Zhu, Ming-Jie Tang, Ran Xu, Wei Gao, Tao Li, Wei Hu, Yan-Qing Lu
Cholesteric liquid crystal (CLC) chiral superstructures exhibit unique features; that is, polychromatic and spin-determined phase modulation. Here, a concept for digitalized chiral superstructures is proposed, which further enables the arbitrary manipulation of reflective geometric phase and may significantly upgrade existing optical apparatus. By encoding a specifically designed binary pattern, an innovative CLC optical vortex (OV) processor is demonstrated. Up to 25 different OVs are extracted with equal efficiency over a wavelength range of 116 nm...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29334177/polypropylene-nonwoven-fabric-poly-ionic-liquid-s-for-switchable-oil-water-separation-dye-absorption-and-antibacterial-applications
#13
Yongyuan Ren, Jiangna Guo, Dan Xu, Jing Qin, Qian Lu, Feng Yan
Pollutants in wastewater include oils, dyes, and bacteria, making wastewater cleanup difficult. Here, we propose the preparation of multifunctional wastewater treatment media, poly(ionic liquid) grafted polypropylene (PP) nonwoven fabrics (PP@PIL), prepared via a simple and scalable surface grafting process. The fabricated PP@PIL fabrics exhibited superior switchable oil/water separation (η > 99%) and dye absorption performance (q = 410 mg/g), as well as high antibacterial properties. The oil/water separation could be easily switched via anion-exchanging of PIL segments...
January 15, 2018: ChemSusChem
https://www.readbyqxmd.com/read/29334165/3d-printing-of-liquid-crystal-elastomeric-actuators-with-spatially-programed-nematic-order
#14
Arda Kotikian, Ryan L Truby, John William Boley, Timothy J White, Jennifer A Lewis
Liquid crystal elastomers (LCEs) are soft materials capable of large, reversible shape changes, which may find potential application as artificial muscles, soft robots, and dynamic functional architectures. Here, the design and additive manufacturing of LCE actuators (LCEAs) with spatially programed nematic order that exhibit large, reversible, and repeatable contraction with high specific work capacity are reported. First, a photopolymerizable, solvent-free, main-chain LCE ink is created via aza-Michael addition with the appropriate viscoelastic properties for 3D printing...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29334158/growth-of-liver-allografts-over-time-in-pediatric-transplant-recipients
#15
S G Chaudhry, S Bentley-Hibbert, J Stern, S Lobritto, M Martinez, J Vittorio, K J Halazun, H T Lee, J Emond, T Kato, B Samstein, A Griesemer
The liver's capacity to grow in response to metabolic need is well known. However, long-term growth of liver allografts in pediatric recipients has not been characterized. A retrospective review of pediatric recipients at a single institution identified patients who had cross-sectional imaging at 1, 5, and 10 years post-transplant. Using volumetric calculations, liver allograft size was calculated and percent SLV were compared across the different time points; 18 patients ranging from 0.3 to 17.7 years old were identified that had imaging at 2 or more time points...
January 15, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29334147/uniform-lithium-nucleation-growth-induced-by-lightweight-nitrogen-doped-graphitic-carbon-foams-for-high-performance-lithium-metal-anodes
#16
Lin Liu, Ya-Xia Yin, Jin-Yi Li, Shu-Hua Wang, Yu-Guo Guo, Li-Jun Wan
The lithium metal anode has attracted soaring attention as an ideal battery anode. Unfortunately, nonuniform Li nucleation results in uncontrollable growth of dendritic Li, which incurs serious safety issues and poor electrochemical performance, hindering its practical applications. Herein, this study shows that uniform Li nucleation/growth can be induced by an ultralight 3D current collector consisting of in situ nitrogen-doped graphitic carbon foams (NGCFs) to realize suppressing dendritic Li growth at the nucleating stage...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29334133/hierarchical-porous-nanosheets-constructed-by-graphene-coated-interconnected-tio2-nanoparticles-for-ultrafast-sodium-storage
#17
Baosong Li, Baojuan Xi, Zhenyu Feng, Yue Lin, Jincheng Liu, Jinkui Feng, Yitai Qian, Shenglin Xiong
Sodium-ion batteries (SIBs) are considered promising next-generation energy storage devices. However, a lack of appropriate high-performance anode materials has prevented further improvements. Here, a hierarchical porous hybrid nanosheet composed of interconnected uniform TiO2 nanoparticles and nitrogen-doped graphene layer networks (TiO2 @NFG HPHNSs) that are synthesized using dual-functional C3 N4 nanosheets as both the self-sacrificing template and hybrid carbon source is reported. These HPHNSs deliver high reversible capacities of 146 mA h g-1 at 5 C for 8000 cycles, 129 mA h g-1 at 10 C for 20 000 cycles, and 116 mA h g-1 at 20 C for 10 000 cycles, as well as an ultrahigh rate capability up to 60 C with a capacity of 101 mA h g-1 ...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29334121/the-multipotency-to-commitment-transition-mct-in-c-elegans-implications-for-reprogramming-from-cells-to-organs
#18
REVIEW
Erik A Spickard, Pradeep M Joshi, Joel H Rothman
In animal embryos, cells transition from a multipotential state, with the capacity to adopt multiple fates, into an irreversible, committed state of differentiation. This multipotency-to-commitment transition (MCT) is evident from experiments in which cell fate is reprogrammed by transcription factors for cell-type-specific differentiation, as has been observed extensively in C. elegans. Although factors that direct differentiation into each of the three germ layer types cannot generally reprogram cells after the MCT in this animal, transcription factors for endoderm development are able to do so in multiple differentiated cell types...
January 15, 2018: FEBS Letters
https://www.readbyqxmd.com/read/29334108/porous-layered-stacked-mnco2o4-cubes-with-enhanced-electrochemical-capacitive-performance
#19
Menggang Li, Weiwei Yang, Ji Li, Ming Feng, Weili Li, Haibo Li, Yongsheng Yu
The development of new electrode materials with various components, structures, morphologies and porosities is critical for improving the performance of supercapacitors. Here, we report a facile strategy for synthesizing porous layered stacked MnCo2O4 cubes through a hydrothermal method, followed by annealing treatment. Compared with other morphologies of MnCo2O4, the specific capacitance of porous layered stacked MnCo2O4 cubes reaches 480.5 F g-1 at a current density of 1 A g-1. Furthermore, porous layered stacked MnCo2O4 cubes show an ultrahigh capacity retention of 75...
January 15, 2018: Nanoscale
https://www.readbyqxmd.com/read/29334092/synthetic-cells-produce-a-quorum-sensing-chemical-signal-perceived-by-pseudomonas-aeruginosa
#20
Giordano Rampioni, Francesca D'Angelo, Marco Messina, Alessandro Zennaro, Yutetsu Kuruma, Daniela Tofani, Livia Leoni, Pasquale Stano
Recent developments in bottom-up synthetic biology (e.g., lipid vesicle technology integrated with cell-free protein expression systems) allow the generation of semi-synthetic minimal cells (in short, synthetic cells, SCs) endowed with some distinctive capacities of natural cells. In particular, such approaches provide technological tools and conceptual frameworks for the design and engineering of programmable SCs capable of communicating with natural cells by exchanging chemical signals. Here we describe the generation of giant vesicle-based SCs which, via gene expression, synthesize in their aqueous lumen an enzyme that in turn produces a chemical signal...
January 15, 2018: Chemical Communications: Chem Comm
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