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https://www.readbyqxmd.com/read/27914027/the-role-of-guided-growth-as-it-relates-to-limb-lengthening
#1
REVIEW
Peter M Stevens
For decades, the classic indication for limb lengthening has been reserved for anisomelia that was expected to reach or exceed 5 cm at maturity. Epiphysiodesis was reserved for discrepancies in the 2-5 cm range. With the increasing sophistication of fixators, including rail, hexapod, and hybrid, complex deformities may be corrected simultaneously while moderate to extreme lengthening is achieved. More recently, iterations of telescoping intramedullary rods have further strengthened our armamentarium. Meanwhile, permanent epiphysiodesis techniques, both open and percutaneous, have yielded to more versatile and reversible tethering of one (angle) or both (length) sides of a physis...
December 2, 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27913980/complete-nucleotide-sequences-and-construction-of-full-length-infectious-cdna-clones-of-cucumber-green-mottle-mosaic-virus-cgmmv-in-a-versatile-newly-developed-binary-vector-including-both-35s-and-t7-promoters
#2
Chan-Hwan Park, Hye-Kyoung Ju, Jae-Yeong Han, Jong-Seo Park, Ik-Hyun Kim, Eun-Young Seo, Jung-Kyu Kim, John Hammond, Hyoun-Sub Lim
Seed-transmitted viruses have caused significant damage to watermelon crops in Korea in recent years, with cucumber green mottle mosaic virus (CGMMV) infection widespread as a result of infected seed lots. To determine the likely origin of CGMMV infection, we collected CGMMV isolates from watermelon and melon fields and generated full-length infectious cDNA clones. The full-length cDNAs were cloned into newly constructed binary vector pJY, which includes both the 35S and T7 promoters for versatile usage (agroinfiltration and in vitro RNA transcription) and a modified hepatitis delta virus ribozyme sequence to precisely cleave RNA transcripts at the 3' end of the tobamovirus genome...
December 2, 2016: Virus Genes
https://www.readbyqxmd.com/read/27913618/meiotic-centromere-coupling-and-pairing-function-by-two-separate-mechanisms-in-saccharomyces-cerevisiae
#3
Emily L Kurdzo, David Obeso, Hoa Chuong, Dean S Dawson
In meiosis I, chromosomes become paired with their homologous partners and then are pulled towards opposite poles of the spindle. In the budding yeast, Saccharomyces cerevisiae, in early meiotic prophase, centromeres are observed to associate in pairs in a homology-independent manner, a process called centromere coupling. Later, as homologous chromosomes align, their centromeres associate in a process called centromere pairing. The synaptonemal complex protein Zip1 is necessary for both types of centromere association...
December 2, 2016: Genetics
https://www.readbyqxmd.com/read/27913355/hierarchically-micro-and-nanopatterned-topographical-cues-for-modulation-of-cellular-structure-and-function
#4
Hoon Seonwoo, Won-Gyu Bae, Sunho Park, Hong-Nam Kim, Kyoung Soon Choi, Ki Taek Lim, Hoon Hyun, Jin-Woo Kim, Jangho Kim, Jong Hoon Chung
Living cells receive biochemical and physical information from the surrounding microenvironment and respond to this information. Multiscale hierarchical substrates with micro- and nanogrooves have been shown to mimic the native extracellular matrix (ECM) better than conventional nanopatterned substrates; therefore, substrates with hierarchical topographical cues are considered suitable for investigating the role of physical factors in tissue functions. In this study, precisely controllable, multiscale hierarchical substrates that could mimic the micro- and nanotopography of complex ECMs were fabricated and used to culture various cell types, including fibroblasts, endothelial cells, osteoblasts, and human mesenchymal stem cells...
December 1, 2016: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/27913349/adaptive-cascade-regression-model-for-robust-face-alignment
#5
Qingshan Liu, Jiankang Deng, Jing Yang, Guangcan Liu, Dacheng Tao
Cascade regression is a popular face alignment approach, and it has achieved good performances on the wild databases. However, it depends heavily on local features in estimating reliable landmark locations and therefore suffers from corrupted images, such as images with occlusion, which often exists in real-world face images. In this paper, we present a new adaptive cascade regression model for robust face alignment. In each iteration, the shape-indexed appearance is introduced to estimate the occlusion level of each landmark, and each landmark is then weighted according to its estimated occlusion level...
December 1, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27913251/unmapped-reads-from-cattle-rnaseq-data-a-source-for-missing-and-misassembled-sequences-in-the-reference-assemblies-and-for-detection-of-pathogens-in-the-host
#6
Tahir Usman, Frieder Hadlich, Wiebke Demasius, Rosemarie Weikard, Christa Kühn
Usually, reads from transcriptome sequencing data unmapped to the target species reference genome are disregarded. A recent RNAseq project on the new fatal disease Bovine Neonatal Pancytopenia had indicated an unexplained immune response signature to a double stranded RNA virus. To unravel its background, contigs were de novo assembled from unmapped RNAseq reads and aligned against the bovine genome assemblies and multispecies NCBI databases. Lack of genuine virus sequence contigs rejected the hypothesis of a live virus being causal for the unexplained immune response...
November 29, 2016: Genomics
https://www.readbyqxmd.com/read/27913228/pd-l1-immunohistochemistry-assays-for-lung-cancer-results-from-phase-1-of-the-blueprint-pd-l1-ihc-assay-comparison-project
#7
Fred R Hirsch, Abigail McElhinny, Dave Stanforth, James Ranger-Moore, Malinka Jansson, Karina Kulangara, William Richardson, Penny Towne, Debra Hanks, Bharathi Vennapusa, Amita Mistry, Rasika Kalamegham, Steve Averbuch, James Novotny, Eric Rubin, Kenneth Emancipator, Ian McCaffery, J Andrew Williams, Jill Walker, John Longshore, Ming S Tsao, Keith M Kerr
BACKGROUND: The "Blueprint PD-L1 IHC Assay Comparison Project" is an industrial-academic collaborative partnership to provide information on the analytical and clinical comparability of four PD-L1 IHC assays used in clinical trials. METHODS: 39 NSCLC tumors were stained with four PD-L1 IHC assays (22C3, 28-8, SP 142 and SP 263) as used in the clinical trials. Three experts in interpreting their respective assays independently evaluated the percentages of tumor and immune cells staining positive at any intensity...
November 29, 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/27912743/str-realigner-a-realignment-method-for-short-tandem-repeat-regions
#8
Kaname Kojima, Yosuke Kawai, Kazuharu Misawa, Takahiro Mimori, Masao Nagasaki
BACKGROUND: In the estimation of repeat numbers in a short tandem repeat (STR) region from high-throughput sequencing data, two types of strategies are mainly taken: a strategy based on counting repeat patterns included in sequence reads spanning the region and a strategy based on estimating the difference between the actual insert size and the insert size inferred from paired-end reads. The quality of sequence alignment is crucial, especially in the former approaches although usual alignment methods have difficulty in STR regions due to insertions and deletions caused by the variations of repeat numbers...
December 3, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27912154/limb-dominance-foot-orientation-and-functional-asymmetry-during-walking-gait
#9
John D Polk, Rebecca M Stumpf, Karl S Rosengren
While healthy gait is often characterized as, or assumed to be symmetric, consistent asymmetries often exist. In this study, we test the hypotheses that asymmetries in lower limb function, as measured by ground reaction force characteristics, may be explained by differences in foot orientation or limb dominance. Peak ground reaction force (GRF) measurements, and impulses were obtained for thirty-six healthy subjects with simultaneous kinematic estimates of foot posture. Three gait tasks were performed: subjects walked i) with normal foot orientation, ii) with feet laterally rotated (outward), and iii) with feet aligned in the direction of movement (straight)...
November 18, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27911958/advantages-of-an-improved-rhesus-macaque-genome-for-evolutionary-analyses
#10
Julien S Gradnigo, Abhishek Majumdar, Robert B Norgren, Etsuko N Moriyama
The rhesus macaque (Macaca mulatta) is widely used in molecular evolutionary analyses, particularly to identify genes under adaptive or unique evolution in the human lineage. For such studies, it is necessary to align nucleotide sequences of homologous protein-coding genes among multiple species. The validity of these analyses is dependent on high quality genomic data. However, for most mammalian species (other than humans and mice), only draft genomes are available. There has been concern that some results obtained from evolutionary analyses using draft genomes may not be correct...
2016: PloS One
https://www.readbyqxmd.com/read/27911925/attenuation-of-quorum-sensing-regulated-virulence-of-pectobacterium-carotovorum-subsp-carotovorum-through-an-ahl-lactonase-produced-by-lysinibacillus-sp-gs50
#11
Sneha S Garge, Anuradha S Nerurkar
Quorum sensing (QS) is a mechanism in which Gram negative bacterial pathogens sense their population density through acyl homoserine lactones (AHLs) and regulate the expression of virulence factors. Enzymatic degradation of AHLs by lactonases, known as quorum quenching (QQ), is thus a potential strategy for attenuating QS regulated bacterial infections. We characterised the QQ activity of soil isolate Lysinibacillus sp. Gs50 and explored its potential for controlling bacterial soft rot of crop plants. Lysinibacillus sp...
2016: PloS One
https://www.readbyqxmd.com/read/27911812/cytoskeleton-dynamics-control-the-first-asymmetric-cell-division-in-arabidopsis-zygote
#12
Yusuke Kimata, Takumi Higaki, Tomokazu Kawashima, Daisuke Kurihara, Yoshikatsu Sato, Tomomi Yamada, Seiichiro Hasezawa, Frederic Berger, Tetsuya Higashiyama, Minako Ueda
The asymmetric cell division of the zygote is the initial and crucial developmental step in most multicellular organisms. In flowering plants, whether zygote polarity is inherited from the preexisting organization in the egg cell or reestablished after fertilization has remained elusive. How dynamically the intracellular organization is generated during zygote polarization is also unknown. Here, we used a live-cell imaging system with Arabidopsis zygotes to visualize the dynamics of the major elements of the cytoskeleton, microtubules (MTs), and actin filaments (F-actins), during the entire process of zygote polarization...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911770/the-right-incentives-enable-ocean-sustainability-successes-and-provide-hope-for-the-future
#13
Jane Lubchenco, Elizabeth B Cerny-Chipman, Jessica N Reimer, Simon A Levin
Healthy ocean ecosystems are needed to sustain people and livelihoods and to achieve the United Nations Sustainable Development Goals. Using the ocean sustainably requires overcoming many formidable challenges: overfishing, climate change, ocean acidification, and pollution. Despite gloomy forecasts, there is reason for hope. New tools, practices, and partnerships are beginning to transform local fisheries, biodiversity conservation, and marine spatial planning. The challenge is to bring them to a global scale...
December 2, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911755/transformation-of-vestibular-signals-for-the-control-of-standing-in-humans
#14
Patrick A Forbes, Billy L Luu, H F Machiel Van der Loos, Elizabeth A Croft, J Timothy Inglis, Jean-Sébastien Blouin
: During standing balance, vestibular signals encode head movement and are transformed into coordinates that are relevant to maintaining upright posture of the whole body. This transformation must account for head-on-body orientation as well as the muscle actions generating the postural response. Here, we investigate whether this transformation is dependent upon a muscle's ability to stabilize the body along the direction of a vestibular disturbance. Subjects were braced on top of a robotic balance system that simulated the mechanics of standing while being exposed to an electrical vestibular stimulus that evoked a craniocentric vestibular error of head roll...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911737/the-conservation-of-phosphate-binding-residues-among-pht1-transporters-suggests-that-distinct-transport-affinities-are-unlikely-to-result-from-differences-in-the-phosphate-binding-site
#15
REVIEW
S Antony Ceasar, Alison Baker, Stephen P Muench, S Ignacimuthu, Stephen A Baldwin
The plant PHosphate Transporter 1 (PHT1) family of membrane proteins belongs to the major facilitator super family and plays a major role in the acquisition of inorganic phosphate (Pi) from the soil and its transport within the plant. These transporters have been well characterized for expression patterns, localization, and in some cases affinity. Furthermore, the crystal structure of a high-affinity eukaryotic phosphate transporter from the fungus Piriformospora indica (PiPT) has revealed important information on the residues involved in Pi transport...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27911711/diaphanous-related-formin-1-as-a-target-for-tumor-therapy
#16
REVIEW
Yuan-Na Lin, Sabine Windhorst
Formins nucleate actin and stabilize microtubules (MTs). Expression of the formin Diaphanous homolog 1 (DIAPH1) is increased in malignant colon carcinoma cells, while expression of DIAPH3 is up-regulated in breast and prostate carcinoma cells. Both DIAPH1 isoforms are required to stabilize interphase MTs of cancer cells, and it has been shown that loss of this function decreases the metastatic potential of these cells. Moreover, depletion of DIAPH3 increases the sensitivity of breast and prostate carcinoma cells to taxanes...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27911524/nanobubble-fragmentation-and-bubble-free-channel-shear-localization-in-helium-irradiated-submicron-sized-copper
#17
Ming-Shuai Ding, Lin Tian, Wei-Zhong Han, Ju Li, Evan Ma, Zhi-Wei Shan
Helium bubbles are one of the typical radiation microstructures in metals and alloys, significantly influencing their deformation behavior. However, the dynamic evolution of helium bubbles under straining is less explored so far. Here, by using in situ micromechanical testing inside a transmission electron microscope, we discover that the helium bubble not only can coalesce with adjacent bubbles, but also can split into several nanoscale bubbles under tension. Alignment of the splittings along a slip line can create a bubble-free channel, which appears softer, promotes shear localization, and accelerates the failure in the shearing-off mode...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911469/comprehensive-identification-and-clustering-of-clv3-esr-related-cle-genes-in-plants-finds-groups-with%C3%A2-potentially-shared-function
#18
David M Goad, Chuanmei Zhu, Elizabeth A Kellogg
CLV3/ESR (CLE) proteins are important signaling peptides in plants. The short CLE peptide (12-13 amino acids) is cleaved from a larger pre-propeptide and functions as an extracellular ligand. The CLE family is large and has resisted attempts at classification because the CLE domain is too short for reliable phylogenetic analysis and the pre-propeptide is too variable. We used a model-based search for CLE domains from 57 plant genomes and used the entire pre-propeptide for comprehensive clustering analysis. In total, 1628 CLE genes were identified in land plants, with none recognizable from green algae...
December 1, 2016: New Phytologist
https://www.readbyqxmd.com/read/27911405/automated-robotic-dispensing-technique-for-surface-guidance-and-bioprinting-of-cells
#19
Ramya Bhuthalingam, Pei Q Lim, Scott A Irvine, Subbu S Venkatraman
This manuscript describes the introduction of cell guidance features followed by the direct delivery of cells to these features in a hydrogel bioink using an automated robotic dispensing system. The particular bioink was selected as it allows cells to sediment towards and sense the features. The dispensing system bioprints viable cells in hydrogel bioinks using a backpressure assisted print head. However, by replacing the print head with a sharpened stylus or scalpel, the dispensing system can also be employed to create topographical cues through surface etching...
November 18, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911086/affective-and-autonomic-responses-to-erotic-images-evidence-of-disgust-based-mechanisms-in-female-sexual-interest-arousal-disorder
#20
Natasha S DePesa, Jeffrey E Cassisi
Disgust has recently been implicated in the development and maintenance of female sexual dysfunction, yet most empirical studies have been conducted with a sexually healthy sample. The current study contributes to the literature by expanding the application of a disgust model of sexual functioning to a clinically relevant sample of women with low sexual desire/arousal and accompanying sexual distress. Young women (mean age = 19.12 years) with psychometrically defined sexual dysfunction (i.e., female sexual interest/arousal disorder [FSIAD] group) and a healthy control group were compared in their affective (i...
December 2, 2016: Journal of Sex Research
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