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https://www.readbyqxmd.com/read/29779155/prioritising-risk-factors-for-type-2-diabetes-causal-inference-through-genetic-approaches
#1
REVIEW
Laura B L Wittemans, Luca A Lotta, Claudia Langenberg
PURPOSE OF THE REVIEW: Causality has been demonstrated for few of the many putative risk factors for type 2 diabetes (T2D) emerging from observational epidemiology. Genetic approaches are increasingly being used to infer causality, and in this review, we discuss how genetic discoveries have shaped our understanding of the causal role of factors associated with T2D. RECENT FINDINGS: Genetic discoveries have led to the identification of novel potential aetiological factors of T2D, including the protective role of peripheral fat storage capacity and specific metabolic pathways, such as the branched-chain amino acid breakdown...
May 19, 2018: Current Diabetes Reports
https://www.readbyqxmd.com/read/29779124/confidenht%C3%A2-system-for-diagnostic-mapping-of-renal-nerves
#2
REVIEW
Costas Tsioufis, Kyriakos Dimitriadis, Panagiotis Tsioufis, Rafael Patras, Maria Papadoliopoulou, Zoi Petropoulou, Dimitris Konstantinidis, Dimitrios Tousoulis
PURPOSE OF REVIEW: To summarize the evidence regarding the distribution of renal nerves and their patterns of anatomic variations in animal and human settings. Moreover, the methodology and results of studies regarding renal nerve stimulation (RNS) in both preclinical and clinical models are presented. RECENT FINDINGS: There are differences regarding the number and the size of renal fibers, as well as their distance from the lumen in the diverse parts of the main renal arteries and the branches...
May 19, 2018: Current Hypertension Reports
https://www.readbyqxmd.com/read/29778889/polypyrrole-increases-branching-and-neurite-extension-by-neuro2a-cells-on-pbat-ultrathin-fibers
#3
Alessandro E C Granato, André C Ribeiro, Fernanda R Marciano, Bruno V M Rodrigues, Anderson O Lobo, Marimelia Porcionatto
We present a methodology for production and application of electrospun hybrid materials containing commercial polyester (poly (butylene adipate-co-terephthalate; PBAT), and a conductive polymer (polypirrole; PPy) as scaffold for neuronal growth and differentiation. The physical-chemical properties of the scaffolds and optimization of the electrospinning parameters are presented. The electrospun scaffolds are biocompatible and allow proper adhesion and spread of mesenchymal stem cells (MSCs). Fibers produced with PBAT with or without PPy were used as scaffold for Neuro2a mouse neuroblastoma cells adhesion and differentiation...
May 17, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29778843/a-synbiotic-improves-the-immunity-of-white-shrimp-litopenaeus-vannamei-metabolomic-analyses-reveal-compelling-evidence
#4
Truong-Giang Huynh, Ann-Chang Cheng, Chia-Chun Chi, Kuo-Hsun Chiu, Chun-Hung Liu
In this study, we examined the synergistic effects of a diet-administered synbiotic comprising galactooligosaccharide (GOS) and the probiotic Lactobacillus plantarum 7-40 on immune responses, immune-related gene expressions, and disease resistance to Vibrio alginolyticus in white shrimp Litopenaeus vannamei. To unravel the regulatory role of the synbiotic in activating the immune system of shrimp, 1 H nuclear magnetic resonance (NMR)-based metabolomic analyses were used to investigate hepatopancreas metabolites, then significantly altered metabolites were confirmed in both the hepatopancreas and plasma by reverse-phase high-performance liquid chromatography (RP-HPLC) and spectrophotometric analyses...
May 17, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29778761/preferential-stabilization-of-newly-formed-dendritic-spines-in-motor-cortex-during-manual-skill-learning-predicts-performance-gains-but-not-memory-endurance
#5
Taylor A Clark, Min Fu, Andrew K Dunn, Yi Zuo, Theresa A Jones
Previous findings that skill learning is associated with the formation and preferential stabilization of new dendritic spines in cortex have raised the possibility that this preferential stabilization is a mechanism for lasting skill memory. We investigated this possibility in adult mice using in vivo two-photon imaging to monitor spine dynamics on superficial apical dendrites of layer V pyramidal neurons in motor cortex during manual skill learning. Spine formation increased over the first 3 days of training on a skilled reaching task, followed by increased spine elimination...
May 17, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29778753/sm22-is-required-for-the-maintenance-of-actin-rich-structures-generated-during-bacterial-infections
#6
Michael Dominic Chua, Kevin Jay Hipolito, Onisukomen Benny Singerr, Julian Solway, Julian Andrew Guttman
The host actin cytoskeleton is utilized by an assortment of pathogenic bacteria to colonize and cause disease in their hosts. Two prominently studied actin-hijacking bacteria are enteropathogenic Escherichia coli (EPEC) and Listeria monocytogenes. EPEC form actin-rich pedestals atop its host cells to move across the intestinal epithelia, while Listeria monocytogenes generate branched actin networks arranged as actin clouds around the bacteria and as comet tails for propulsion within and amongst their host cells...
May 17, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29778483/effect-of-replacing-maize-silage-with-red-clover-silage-in-the-diet-on-milk-fatty-acid-composition-in-cows
#7
Franziska Schulz, Edwin Westreicher-Kristen, Joachim Molkentin, Karin Knappstein, Andreas Susenbeth
This study aimed to evaluate the effect of replacing maize silage plus soybean meal with red clover silage (RCS) plus wheat on the fatty acid (FA) profile in the milk fat of cows. Forty-four lactating German Holstein cows were used in a 4 × 4 Latin square design with 21-d periods composed of 13 d of adaptation to diets followed by an 8-d sampling phase. Experimental diets offered as total mixed ration consisted of a constant forage-to-concentrate ratio (75:25) with target proportions of RCS to maize silage of 15:60 (RCS15 ), 30:45 (RCS30 ), 45:30 (RCS45 ), and 60:15 (RCS60 ) on a dry matter basis...
May 16, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29778449/mechanisms-underlying-the-relaxation-by-a484954-a-eukaryotic-elongation-factor-2-kinase-inhibitor-in-rat-isolated-mesenteric-artery
#8
Tomoko Kodama, Muneyoshi Okada, Hideyuki Yamawaki
Eukaryotic elongation factor 2 kinase (eEF2K) is a calmodulin-related protein kinase which regulates protein translation. A484954 is an inhibitor of eEF2K. In the present study, we investigated the acute effects of A484954 on contractility of isolated blood vessels. Isometric contraction of rat isolated aorta and main branch of superior mesenteric artery (MA) was measured. Expression of an inward rectifier K+ (Kir ) channel subtype mRNA and protein was examined. A484954 caused relaxation in endothelium-intact [E (+)] and -denuded [E (-)] aorta or MA precontracted with noradrenaline (NA)...
May 2, 2018: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29778447/analysis-of-hydrophobically-modified-ethylene-oxide-urethane-rheology-modifiers-by-comprehensive-two-dimensional-liquid-chromatography
#9
Peilin Yang, Lu Bai, Wenqin Wang, John Rabasco
Hydrophobically modified ethylene oxide urethane (HEUR) rheology modifiers are polymers used widely in waterborne coatings and other consumer products. The incorporation of hydrophobic end-groups significantly affects the thickening performance of HEURs. Therefore, understanding the degree of incorporation of hydrophobic end-groups on the polymer chain can help gain important insights on the structure/property relationship for HEUR rheology modifiers. A comprehensive two-dimensional liquid chromatography (2D-LC) method was developed for separating polymeric HEUR rheology modifiers based on the number of hydrophobic end-groups incorporated on the polymer chain...
May 16, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29778237/prevalence-temporal-evolution-and-impact-on-survival-of-ventricular-conduction-blocks-in-patients-with-acute-coronary-syndrome-and-cardiogenic-shock
#10
Heli Tolppanen, Tuija Javanainen, Jordi Sans-Rosello, Jiri Parenica, Tuomo Nieminen, Marie Pavlusova, Josep Masip, Lars Köber, Marek Banaszewski, Alessandro Sionis, Jindrich Spinar, Veli-Pekka Harjola, Raija Jurkko, Johan Lassus
Changes in QRS duration and pattern are regarded to reflect severe ischemia in acute coronary syndromes (ACS), and ventricular conduction blocks (VCBs) are recognized high-risk markers in both ACS and acute heart failure. Our aim was to evaluate the prevalence, temporal evolution, association with clinical and angiographic parameters, and impact on mortality of VCBs in ACS-related cardiogenic shock (CS). Data of 199 patients with ACS-related CS from a prospective multinational cohort were evaluated with electrocardiogram data from baseline and day 3...
April 20, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29778068/evaluation-of-the-structural-morphology-of-starch-graft-poly-acrylic-acid-on-its-scale-inhibition-efficiency
#11
Wei Yu, Yawen Wang, Aimin Li, Hu Yang
The development of phosphorus-free and biodegradable scale inhibitors has been paid considerable attention. Two series of starch-graft-poly(acrylic acid) (St-g-PAA) samples with different grafting ratios and grafted-chain distributions, that is, the number and length of grafted PAA chains on the starch backbone, were designed and prepared in this study. Fourier transform infrared and 1 H nuclear magnetic resonance spectra were used to further characterize the molecular structures of the St-g-PAAs. In addition to dose, the effects of the structural morphologies of St-g-PAA, namely, grafting ratio and grafted-chain distribution, on the scale-inhibition performance against calcium carbonate were investigated systematically...
April 9, 2018: Water Research
https://www.readbyqxmd.com/read/29777767/biglycan-is-a-new-high-affinity-ligand-for-cd14-in-macrophages
#12
Heiko Roedig, Madalina V Nastase, Helena Frey, Kristin Moreth, Jinyang Zeng-Brouwers, Chiara Poluzzi, Louise Tzung-Harn Hsieh, Christian Brandts, Simone Fulda, Malgorzata Wygrecka, Liliana Schaefer
Sterile inflammation is a therapeutic target in many diseases where it represents an important initiator of disease progression. However, the detailed mechanisms underlying its evolution and biological relevance are not yet completely elucidated. Biglycan, a prototype extracellular matrix-derived damage-associated molecular pattern, mediates sterile inflammation in macrophages through Toll-like receptor (TLR) 2 and/or TLR4-dependent signaling pathways. Here we discovered that soluble biglycan is a novel high-affinity ligand for CD14, a well-known GPI-anchored co-receptor for TLRs...
May 16, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29777692/an-optimal-serum-free-defined-condition-for-in-vitro-culture-of-kidney-organoids
#13
Masaki Nishikawa, Hiroshi Kimura, Naomi Yanagawa, Morgan Hamon, Peter Hauser, Lifu Zhao, Oak D Jo, Norimoto Yanagawa
Kidney organoid is an emerging topic of importance for research in kidney development and regeneration. Conventional culture systems for kidney organoids reported thus far use culture media containing serum, which may compromise our understanding and the potential clinical applicability of the organoid system. In our present study, we tested two serum-free culture conditions and compared their suitability for the maintenance and growth of kidney organoids in culture. One of the serum-free culture conditions was the combination of keratinocytes serum free medium (KSFM) with knockout serum replacement (KSR) (KSFM + KSR), and the other was the combination of knockout DMEM/F12 (KD/F12) and KSR (KD/F12 + KSR)...
May 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29777444/comparison-of-lawsone-contents-among-lawsonia-inermis-plant-parts-and-neurite-outgrowth-accelerators-from-branches
#14
Yoshimi Oda, Souichi Nakashima, Erina Kondo, Seikou Nakamura, Mamiko Yano, Chisa Kubota, Yusuke Masumoto, Minami Hirao, Yuki Ogawa, Hisashi Matsuda
Lawsonia inermis L. (Lythraceae) is cultivated in many countries, including Japan, China, India and Egypt. Its leaves are well known as hair dye and exhibit antibacterial, anticancer, antifungal and anticonvulsant activities. However, there are few reports on its branches. 2-Hydroxy-1,4-naphthoquinone (lawsone) is a characteristic compound in its leaves. However, it remains to be clarified whether lawsone is present in other plant parts or not. In this study, we measured lawsone contents in the extracts of L...
May 17, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29777394/biomechanical-impact-of-wrong-positioning-of-a-dedicated-stent-for-coronary-bifurcations-a-virtual-bench-testing-study
#15
Claudio Chiastra, Maik J Grundeken, Carlos Collet, Wei Wu, Joanna J Wykrzykowska, Giancarlo Pennati, Gabriele Dubini, Francesco Migliavacca
The treatment of coronary bifurcations is challenging for interventional cardiologists. The Tryton stent (Tryton Medical, Inc., USA) is one of the few devices specifically designed for coronary bifurcations that underwent large clinical trials. Although the manufacturer provides specific recommendations to position the stent in the bifurcation side branch (SB) according to four radio-opaque markers under angiographic guidance, wrong device positioning may accidentally occur. In this study, the virtual bench testing approach was used to investigate the impact of wrong positioning of the Tryton stent in coronary bifurcations in terms of geometrical and biomechanical criteria...
May 17, 2018: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/29777374/the-tenascin-c-derived-peptide-vswrapta-promotes-neuronal-branching-via-transcellular-activation-of-the-focal-adhesion-kinase-fak-and-the-erk1-2-signaling-pathway-in-vitro
#16
Marvin Jarocki, Omar Sallouh, Ralf Weberskirch, Andreas Faissner
The central nervous system (CNS) of mammals has a limited regeneration capacity after traumatic events, which causes chronic functional disability. The development of biomaterials aims at providing support for the regeneration process. One strategy integrates peptides that mimic functional domains of extracellular matrix (ECM) or cell adhesion molecules with synthetic polymers designed to present growth-supporting cues to the neuronal microenvironment. Thus, small peptide sequences originating from molecules of the ECM may serve as promising bio-additives, acting as artificial matricryptins to gear cellular processes...
May 18, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29776407/comparative-genomics-of-the-miniature-wasp-and-pest-control-agent-trichogramma-pretiosum
#17
Amelia R I Lindsey, Yogeshwar D Kelkar, Xin Wu, Dan Sun, Ellen O Martinson, Zhichao Yan, Paul F Rugman-Jones, Daniel S T Hughes, Shwetha C Murali, Jiaxin Qu, Shannon Dugan, Sandra L Lee, Hsu Chao, Huyen Dinh, Yi Han, Harsha Vardhan Doddapaneni, Kim C Worley, Donna M Muzny, Gongyin Ye, Richard A Gibbs, Stephen Richards, Soojin V Yi, Richard Stouthamer, John H Werren
BACKGROUND: Trichogrammatids are minute parasitoid wasps that develop within other insect eggs. They are less than half a millimeter long, smaller than some protozoans. The Trichogrammatidae are one of the earliest branching families of Chalcidoidea: a diverse superfamily of approximately half a million species of parasitoid wasps, proposed to have evolved from a miniaturized ancestor. Trichogramma are frequently used in agriculture, released as biological control agents against major moth and butterfly pests...
May 18, 2018: BMC Biology
https://www.readbyqxmd.com/read/29776140/universal-size-properties-of-a-star-ring-polymer-structure-in-disordered-environments
#18
K Haydukivska, V Blavatska
We consider the complex polymer system, consisting of a ring polymer connected to the f_{1}-branched starlike structure, in a good solvent in the presence of structural inhomogeneities. In particular cases f_{1}=1 and f_{1}=2, such a system restores the synthesized tadpole-shaped polystyrenes [Doi et al., Macromolecules 46, 1075 (2013)MAMOBX0024-929710.1021/ma302511j]. We assume that structural defects are correlated at large distances x according to a power law x^{-a}. Applying the direct polymer renormalization approach, we evaluate the universal size characteristics such as the ratio of the radii of gyration of star-ring and star topologies, and compare the effective sizes of single arms in complex structures and isolated polymers of the same total molecular weight...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29776128/information-theoretic-model-selection-for-optimal-prediction-of-stochastic-dynamical-systems-from-data
#19
David Darmon
In the absence of mechanistic or phenomenological models of real-world systems, data-driven models become necessary. The discovery of various embedding theorems in the 1980s and 1990s motivated a powerful set of tools for analyzing deterministic dynamical systems via delay-coordinate embeddings of observations of their component states. However, in many branches of science, the condition of operational determinism is not satisfied, and stochastic models must be brought to bear. For such stochastic models, the tool set developed for delay-coordinate embedding is no longer appropriate, and a new toolkit must be developed...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29776006/mineralization-can-be-an-incidental-ultrasonographic-finding-in-equine-tendons-and-ligaments
#20
Etienne J O O'Brien, Roger K W Smith
Tendon/ligament mineralization is recognized in horses but information regarding its clinical significance is limited. The aims of this observational study were to report the structures most commonly affected by ultrasonographically detectable mineralization and, for these, determine frequency of diagnosis and key clinical features. Cases presented at our hospital in April 1999-April 2013 and September 2014-November 2015 were included: a total of 27 horses (22 retrospective, five prospective). Mineralizations were most common in deep digital flexor tendons (10) and suspensory ligament branches (eight), representing 10% and 7% (estimated), respectively, of horses diagnosed with injuries to these structures during the study...
May 18, 2018: Veterinary Radiology & Ultrasound
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