keyword
MENU ▼
Read by QxMD icon Read
search

Parallel fiber

keyword
https://www.readbyqxmd.com/read/29153156/a-100-year-review-carbohydrates-characterization-digestion-and-utilization
#1
Mary Beth Hall, David R Mertens
Our knowledge of the role of carbohydrates in dairy cattle nutrition has advanced substantially in the 100 years of the publication of the Journal of Dairy Science. In this review, we trace the history of scientific investigation and discovery from crude fiber, nitrogen-free extract, and "unidentified factors" to our present analytical schemes and understanding of ruminal and whole-animal utilization and effects of dietary carbohydrates. Historically, advances in research and new feeding standards occurred in parallel with and fostered by new methods of analysis...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29150945/development-of-an-in-vivo-mouse-model-of-discogenic-low-back-pain
#2
Changgui Shi, Vaskar Das, Xin Li, Ranjan Kc, Sujun Qiu, InSug O-Sullivan, Richard L Ripper, Jeffrey S Kroin, Fackson Mwale, Atiyayein A Wallace, Bingqian Zhu, Lan Zhao, Andre J van Wijnen, Mingliang Ji, Jun Lu, Gina Votta-Velis, Wen Yuan, Hee-Jeong Im
Discogenic Low back pain (DLBP) is extremely common and costly. Effective treatments are lacking due to DLBP's unknown pathogenesis. Currently, there are no in vivo mouse models of DLBP, which restricts research in this field. The aim of this study was to establish a reliable DLBP model in mouse that captures the pathological changes in the disc and allows longitudinal pain testing. The model was generated by puncturing the mouse lumbar discs (L4/5, L5/6, and L6/S1) and removing the nucleus pulposus using a microscalpel under the microscope...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150767/cell-migration-in-1d-and-2d-nanofiber-microenvironments
#3
Horacio M Estabridis, Aniket Jana, Amrinder Nain, David J Odde
Understanding how cells migrate in fibrous environments is important in wound healing, immune function, and cancer progression. A key question is how fiber orientation and network geometry influence cell movement. Here we describe a quantitative, modeling-based approach toward identifying the mechanisms by which cells migrate in fibrous geometries having well controlled orientation. Specifically, U251 glioblastoma cells were seeded onto non-electrospinning Spinneret based tunable engineering parameters fiber substrates that consist of networks of suspended 400 nm diameter nanofibers...
November 17, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29139298/sic-nanofiber-mat-a-broadband-microwave-absorber-and-the-alignment-effect
#4
Yi Hou, Laifei Cheng, Yani Zhang, Yong Yang, Chaoran Deng, Zhihong Yang, Qi Chen, Xiaoqing Du, Lianxi Zheng
Fiber alignment is a key factor that determines the physical properties of nanofiber mats. In this work, SiC nanofiber mats with or without fiber alignment are fabricated via electrospinning and the microwave electromagnetic (EM) properties of their silicone resin composites (5wt.%) are investigated in 2-18 GHz. By comparing with the composite containing smashed nanofiber, it is found that the nanofiber mats show superior dielectric loss and a minimal reflection loss (RL) of around -49 dB at 8.6 GHz and 4.3 mm thickness, associated with a broad effective absorption (<-10 dB) bandwidth (EAB) of about 7...
November 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29134360/protein-kinase-c-in-the-cerebellum-its-significance-and-remaining-conundrums
#5
REVIEW
Hirokazu Hirai
Protein kinase C (PKC), a family of serine/threonine protein kinases, mediates a myriad of patho-physiological cellular events in various tissues. The originally discovered PKC (conventional) requires the binding of diacylglycerol and Ca(2+) for full activation. The conventional PKC consists of four isoforms, PKCα, PKCβI/βII, and PKCγ. PKCα and PKCβI/βII are expressed in the cells of various tissues including the brain, while PKCγ is present specifically in neurons of the brain and spinal cord. The cerebellum expresses the largest amount of PKC with all its four isoforms...
November 13, 2017: Cerebellum
https://www.readbyqxmd.com/read/29133428/intact-hemisphere-and-corpus-callosum-compensate-for-visuomotor-functions-after-early-visual-cortex-damage
#6
Alessia Celeghin, Matteo Diano, Beatrice de Gelder, Lawrence Weiskrantz, Carlo A Marzi, Marco Tamietto
Unilateral damage to the primary visual cortex (V1) leads to clinical blindness in the opposite visual hemifield, yet nonconscious ability to transform unseen visual input into motor output can be retained, a condition known as "blindsight." Here we combined psychophysics, functional magnetic resonance imaging, and tractography to investigate the functional and structural properties that enable the developing brain to partly overcome the effects of early V1 lesion in one blindsight patient. Visual stimuli appeared in either the intact or blind hemifield and simple responses were given with either the left or right hand, thereby creating conditions where visual input and motor output involve the same or opposite hemisphere...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29128709/integrating-experiment-theory-and-simulation-to-determine-the-structure-and-dynamics-of-mammalian-chromosomes
#7
REVIEW
G Tiana, L Giorgetti
Eukaryotic chromosomes are complex polymers, which largely exceed in size most biomolecules that are usually modelled in computational studies and whose molecular interactions are to a large extent unknown. Since the folding of the chromatin fiber in the cell nucleus is tightly linked to biological function and gene expression in particular, characterizing the conformational and dynamical properties of chromosomes has become crucial in order to better understand how genes are regulated. In parallel with the development of experimental techniques allowing to measure physical contacts within chromosomes inside the cell nucleus, a large variety of physical models to study the structure and mechanisms of chromosome folding have recently emerged...
November 8, 2017: Current Opinion in Structural Biology
https://www.readbyqxmd.com/read/29118694/implications-of-schwann-cells-biomechanics-and-mechanosensitivity-for-peripheral-nervous-system-physiology-and-pathophysiology
#8
REVIEW
Gonzalo Rosso, Peter Young, Victor Shahin
The presence of bones around the central nervous system (CNS) provides it with highly effective physiologically crucial mechanical protection. The peripheral nervous system (PNS), in contrast, lacks this barrier. Consequently, the long held belief is that the PNS is mechanically vulnerable. On the other hand, the PNS is exposed to a variety of physiological mechanical stresses during regular daily activities. This fact prompts us to question the dogma of PNS mechanical vulnerability. As a matter of fact, impaired mechanics of PNS nerves is associated with neuropathies with the liability to mechanical stresses paralleled by significant impairment of PNS physiological functions...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29114842/the-3d-retinal-capillary-circulation-in-pigs-reveals-a-predominant-serial-organization
#9
Stéphane Fouquet, Ophélie Vacca, Florian Sennlaub, Michel Paques
Purpose: To establish a model of the retinal capillary circulation in pigs, which in many aspects is close to the human retina. Methods: Using high density confocal microscopy image stacks of immunolabeled porcine retinal whole mounts, microvessels close to the optic nerve head were traced in three dimensions. The direction of flow of individual capillaries was deduced from their arteriolar and/or venous connections. Results: From major arteries, second-order arteries traversed the nerve fiber layer and resolved exclusively into the superficial vascular plexus (SVP), which dichotomized the blood flow between radial peripapillary capillaries (RPCs) on one side and the intermediate (IVP) and deep vascular plexus (DVP) on the other...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29109804/effects-of-tumor-necrosis-factor-%C3%AE-on-morphology-and-mechanical-properties-of-hct116-human-colon-cancer-cells-investigated-by-atomic-force-microscopy
#10
Huiqing Liu, Nan Wang, Zhe Zhang, Hongda Wang, Jun Du, Jilin Tang
Chronic inflammation orchestrates the tumor microenvironment and is strongly associated with cancer. Tumor necrosis factor-α (TNFα) is involved in tumor invasion and metastasis by inducing epithelial to mesenchymal transition (EMT). This process is defined by the loss of epithelial characteristics and gain of mesenchymal traits. The mechanisms of TNFα-induced EMT in cancer cells have been well studied. However, mechanical properties have not yet been probed. In this work, atomic force microscopy (AFM) was applied to investigate the morphology and mechanical properties of EMT in HCT116 human colon cancer cells...
2017: Scanning
https://www.readbyqxmd.com/read/29106758/transcriptomic-analysis-of-synovial-extracellular-rna-following-knee-trauma-a-pilot-study
#11
Anthony J Griswold, Jose Perez, Karen Nuytemans, Thomas Strong, Liyong Wang, Danica D Vance, Hayley Ennis, Marvin K Smith, Thomas M Best, Jeffery M Vance, Margaret A Pericak-Vance, Lee D Kaplan
Traumatic knee injuries often result in damage to articular cartilage and other joint structures. Such trauma is a strong risk factor for the future development and progression of osteoarthritis (OA). The molecular mechanisms and signaling pathways modulating response to knee joint trauma remain unclear. Moreover, investigations of biomarkers influencing responses have been targeted rather than broad, unbiased discovery studies. Herein we characterize the complete complement of extracellular RNA (exRNA) in the synovial fluid of 14 subjects following knee injury...
November 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29100326/fiber-modified-hexon-chimeric-oncolytic-adenovirus-targeting-cancer-associated-fibroblasts-inhibits-tumor-growth-in-gastric-carcinoma
#12
Tao Pang, Xinghua Wang, Jun Gao, Wei Chen, Xiao Jun Shen, Ming Ming Nie, Tianhang Luo, Kai Yin, Guoen Fang, Kai Xuan Wang, Xu Chao Xue
Objective: To evaluate the effects of fiber-modified hexon-chimeric recombinant oncolytic adenovirus targeting cancer associated fibroblasts (CAFs) on the gastric CAFs and the transplantation tumor mice model of gastric carcinoma (GC). Results: Compared with BJ cells and GPFs, the reproduction and infectivity of P9, P9-4C or GP adenoviruses were markedly higher in gastric CAFs. In addition, P9, P9-4C or GP had a significantly relatively more killing effect on gastric CAFs compared with GPFs, and have less oncolytic effect in BJ cells...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29098426/improvement-in-cardiometabolic-risk-markers-following-a-multifunctional-diet-is-associated-with-gut-microbial-taxa-in-healthy-overweight-and-obese-subjects
#13
Nittaya Marungruang, Juscelino Tovar, Inger Björck, Frida Fåk Hållenius
PURPOSE: A multifunctional diet (MFD) targeting subclinical inflammation was developed as a tool to decrease risk factors for cardiometabolic disease in healthy "at-risk" individuals (BMI 25-33 kg/m(2)). MFD contains several components that are degraded in the colon by the microbiota, such as dietary fibers from rye, barley, oats and berries. It also contains soy beans, oily fish and plant stanols. In previous studies, we have observed improved cardiometabolic markers in healthy at-risk individuals after 4-8 week intake of MFD...
November 2, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29097665/rnf8-ubc13-ubiquitin-signaling-suppresses-synapse-formation-in-the-mammalian-brain
#14
Pamela Valnegri, Ju Huang, Tomoko Yamada, Yue Yang, Luis A Mejia, Ha Y Cho, Anna Oldenborg, Azad Bonni
Although ubiquitin ligases have been implicated in autism, their roles and mechanisms in brain development remain incompletely understood. Here, we report that in vivo knockdown or conditional knockout of the autism-linked ubiquitin ligase RNF8 or associated ubiquitin-conjugating enzyme UBC13 in rodent cerebellar granule neurons robustly increases the number of parallel fiber presynaptic boutons and functional parallel fiber/Purkinje cell synapses. In contrast to the role of nuclear RNF8 in proliferating cells, RNF8 operates in the cytoplasm in neurons to suppress synapse differentiation in vivo...
November 2, 2017: Nature Communications
https://www.readbyqxmd.com/read/29097503/ryanodine-channel-complex-stabilizer-compound-s48168-arm210-as-a-disease-modifier-in-dystrophin-deficient-mdx-mice-proof-of-concept-study-and-independent-validation-of-efficacy
#15
Roberta Francesca Capogrosso, Paola Mantuano, Kitipong Uaesoontrachoon, Anna Cozzoli, Arcangela Giustino, Todd Dow, Sadish Srinivassane, Marina Filipovic, Christina Bell, Jack Vandermeulen, Ada Maria Massari, Michela De Bellis, Elena Conte, Sabata Pierno, Giulia Maria Camerino, Antonella Liantonio, Kanneboyina Nagaraju, Annamaria De Luca
Muscle fibers lacking dystrophin undergo a long-term alteration of Ca(2+) homeostasis, partially caused by a leaky Ca(2+) release ryanodine (RyR) channel. S48168/ARM210, an RyR calcium release channel stabilizer (a Rycal compound), is expected to enhance the rebinding of calstabin to the RyR channel complex and possibly alleviate the pathologic Ca(2+) leakage in dystrophin-deficient skeletal and cardiac muscle. This study systematically investigated the effect of S48168/ARM210 on the phenotype of mdx mice by means of a first proof-of-concept, short (4 wk), phase 1 treatment, followed by a 12 wk treatment (phase 2) performed in parallel by 2 independent laboratories...
November 2, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29095649/loss-of-smad3-promotes-vascular-remodeling-in-pulmonary-arterial-hypertension-via-mrtf-disinhibition
#16
Diana Zabini, Elise Granton, Yijie Hu, Maria Zena Miranda, Ulrike Weichelt, Sandra Breuils Bonnet, Sébastien Bonnet, Nicholas W Morrell, Kim A Connelly, Steeve Provencher, Bahil Ghanim, Walter Klepetko, Andrea Olschewski, Andras Kapus, Wolfgang M Kuebler
INTRODUCTION: Vascular remodeling in pulmonary arterial hypertension (PAH) results from smooth muscle cell hypertrophy and proliferation of vascular cells. Loss of bone morphogenetic protein receptor 2 (BMPR-II) signaling and increased signaling via transforming growth factor β (TGF-β) and its downstream mediators SMAD2/3 has been proposed to drive lung vascular remodeling; yet, proteomic analyses indicate a loss of SMAD3 in PAH. OBJECTIVE: We proposed that SMAD3 may be dysregulated in PAH, and that loss of SMAD3 may present a master switch in the disease process by disinhibiting its interaction partner myocardin-related transcription factor (MRTF) which drives muscle protein expression...
November 2, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29090721/optofluidic-marine-phosphate-detection-with-enhanced-absorption-using-a-fabry-p%C3%A3-rot-resonator
#17
J M Zhu, Y Shi, X Q Zhu, Y Yang, F H Jiang, C J Sun, W H Zhao, X T Han
Real-time detection of phosphate has significant meaning in marine environmental monitoring and forecasting the occurrence of harmful algal blooms. Conventional monitoring instruments are dependent on artificial sampling and laboratory analysis. They have various shortcomings for real-time applications because of the large equipment size and high production cost, with low target selectivity and the requirement of time-consuming procedures to obtain the detection results. We propose an optofluidic miniaturized analysis chip combined with micro-resonators to achieve real-time phosphate detection...
November 21, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/29089975/autonomic-dysreflexia-a-cardiovascular-disorder-following-spinal-cord-injury
#18
REVIEW
Hisham Sharif, Shaoping Hou
Autonomic dysreflexia (AD) is a serious cardiovascular disorder in patients with spinal cord injury (SCI). The primary underlying cause of AD is loss of supraspinal control over sympathetic preganglionic neurons (SPNs) caudal to the injury, which renders the SPNs hyper-responsive to stimulation. Central maladaptive plasticity, including C-fiber sprouting and propriospinal fiber proliferation exaggerates noxious afferent transmission to the SPNs, causing them to release massive sympathetic discharges that result in severe hypertensive episodes...
September 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29083063/unveiling-the-role-of-macrodipolar-interactions-in-the-properties-of-self-assembled-supramolecular-materials
#19
Marina Pereira Oliveira, Hans-Werner Schmidt, Rodrigo Queiroz de Albuquerque
Self-assembling of supramolecules composed of benzene and cyclohexanetricarboxamide derivatives can form highly organized 1D fibers exhibiting macrodipoles. The way fibers pack in the condensed phase governs the final properties of the supramolecular material, where macrodipoles can be oriented parallel or antiparallel to each other, and their magnitude can be tuned by additional intra-columnar dipole stabilization. X-ray structural elucidation of these materials remains a real challenge due to the difficulty in growing single crystals...
October 30, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29071889/-characteristics-of-distribution-of-blood-vessels-and-nerve-fibers-in-the-skin-tissues-of-acupoint-taichong-lr-3-in-the-rat
#20
Dong-Sheng Xu, Chen She, Jia Wang, Jing-Jing Cui, Hong Cai, Wan-Zhu Bai
OBJECTIVE: To investigate the microstructure (blood vessels and nerve fibers) of the skin tissue in "Taichong" (LR 3) region for reveling morphological characteristics of acupoint. METHODS: Five SD rats were used in the present study. The skin tissue in the region of acupoint LR 3 was taken from the dorsum of hind foot following transcardial perfusion with 4% paraformaldehyde. Then, the skin samples were sagittally or horizontally cut into sections (20 μm or 40 μm in the thickness) to be stained with Phalloidin and calcitonin gene related peptide (CGRP) by using fluorescent histochemistry and immunohistochemistry...
December 25, 2016: Zhen Ci Yan Jiu, Acupuncture Research
keyword
keyword
13624
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"