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https://www.readbyqxmd.com/read/28531368/molecular-phylogeny-of-loliginidae-inferred-from-mitochondrial-dna-sequence-variation
#1
Lisen Kang, Shuyi Zhang, Changwen Wu, Xiaoxu Liu, Mei Ying Xu, Lihua Jiang
Loliginidae includes many economically important species in trophic systems worldwide. Here, we investigated genetic relationships and diversity in this family. Sequence comparisons and phylogenetic analyses revealed considerable variations between mitochondrial 16 S rRNA gene and cytochrome coxidase subunit I gene among nine Loliginid species. We identified three similar non-coding regions in eight Loliginid species, but not in Sepioteuthislessoniana. We detected a single extended termination-associated sequence and three conserved sequence blocks among these eight species...
May 20, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28531226/intercenter-validation-of-a-knowledge-based-model-for-automated-planning-of-volumetric-modulated-arc-therapy-for-prostate-cancer-the-experience-of-the-german-rapidplan-consortium
#2
Carolin Schubert, Oliver Waletzko, Christian Weiss, Dirk Voelzke, Sevda Toperim, Arnd Roeser, Silvia Puccini, Marc Piroth, Christian Mehrens, Jan-Dirk Kueter, Kirsten Hierholz, Karsten Gerull, Antonella Fogliata, Andreas Block, Luca Cozzi
PURPOSE: To evaluate the performance of a model-based optimisation process for volumetric modulated arc therapy applied to prostate cancer in a multicentric cooperative group. The RapidPlan (RP) knowledge-based engine was tested for the planning of Volumetric modulated arc therapy with RapidArc on prostate cancer patients. The study was conducted in the frame of the German RapidPlan Consortium (GRC). METHODS AND MATERIALS: 43 patients from one institute of the GRC were used to build and train a RP model...
2017: PloS One
https://www.readbyqxmd.com/read/28529154/habitat-heterogeneity-hypothesis-and-edge-effects-in-model-metacommunities-marked-manuscript
#3
Michaela Hamm, Barbara Drossel
Spatial heterogeneity is an inherent property of any living environment and is expected to favour biodiversity due to a broader niche space. Furthermore, edges between different habitats can provide additional possibilities for species coexistence. Using computer simulations, this study examines metacommunities consisting of several trophic levels in heterogeneous environments in order to explore the above hypotheses on a community level. We model heterogeneous landscapes by using two different sized resource pools and evaluate the combined effect of dispersal and heterogeneity on local and regional species diversity...
May 18, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28528961/gp5-of-porcine-reproductive-and-respiratory-syndrome-virus-prrsv-as-a-target-for-homologous-and-broadly-neutralizing-antibodies
#4
REVIEW
Luca N Popescu, Benjamin R Trible, Nanhua Chen, Raymond R R Rowland
Virus neutralization (VN) responses range from narrowly focused antibodies with only homologous neutralizing activity against the virus used for infection, to antibodies that can neutralize both Type 1 and Type 2 viruses, referred to as broadly neutralizing antibody (bnAb). Even though neutralizing epitopes are likely distributed among several structural glycoproteins, this paper focuses on the ectodomain region of GP5 as a model system for investigating the role for neutralizing and non-neutralizing antibodies in protection and disease...
April 29, 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28528636/correlative-two-photon-and-serial-block-face-scanning-electron-microscopy-in-neuronal-tissue-using-3d-near-infrared-branding-maps
#5
Robert M Lees, Christopher J Peddie, Lucy M Collinson, Michael C Ashby, Paul Verkade
Linking cellular structure and function has always been a key goal of microscopy, but obtaining high resolution spatial and temporal information from the same specimen is a fundamental challenge. Two-photon (2P) microscopy allows imaging deep inside intact tissue, bringing great insight into the structural and functional dynamics of cells in their physiological environment. At the nanoscale, the complex ultrastructure of a cell's environment in tissue can be reconstructed in three dimensions (3D) using serial block face scanning electron microscopy (SBF-SEM)...
2017: Methods in Cell Biology
https://www.readbyqxmd.com/read/28528633/correlative-light-electron-microscopy-in-liquid-using%C3%A2-an-inverted-sem-asem
#6
Chikara Sato, Takaaki Kinoshita, Nassirhadjy Memtily, Mari Sato, Shoko Nishihara, Toshiko Yamazawa, Shinya Sugimoto
In atmospheric scanning electron microscope (ASEM), the inverted scanning electron microscope (SEM) observes the wet sample from below, while an optical microscope observes it from above simultaneously. The ASEM sample holder has a disposable dish shape with a silicon nitride film window at the bottom. It can be coated variously for the primary-culture of substrate-sensitive cells; primary cells were cultured in a few milliliters of culture medium in a stable incubator environment. For the inverted SEM observation, cells and the excised tissue blocks were aldehyde-fixed, immersed in radical scavenger solution, and observed at minimum electron dose...
2017: Methods in Cell Biology
https://www.readbyqxmd.com/read/28528218/laboratory-studies-of-ultrasonic-wave-response-of-fractures-with-different-lengths-anisotropy-characteristics-and-coda-analysis
#7
D Wang, S L Qu, Q Zhao, X Y Yin, F Zhou
Ultrasonic wave propagation in a synthetic medium with different scale fractures is investigated through the physics modeling research. The experiment model consisting of two layers, the first layer is divided into four fractured blocks with a constant fracture density but different dimension and a block without fractures as the reference region. The velocity and reflected amplitude of wave derived from the wide azimuth data processing are anisotropic due to the fractured layer. Coda wave characteristics versus offset and azimuth are obviously different for varying fracture scales...
May 13, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28527062/the-prokineticin-system-an-interface-between-neural-inflammation-and-pain
#8
Silvia Franchi, Paola Sacerdote, Alberto Panerai
Prokineticins (PK) 1 and 2 belong to a new family of chemokines capable to interact with two different G coupled receptors: Prokineticin receptor (PKR)1 and 2. Both prokineticins and their receptors are widely distributed in different tissues and regulate several biological functions. In particular, a role of the PK system in inflammation and nociception has been established. PKRs are expressed in regions of the nervous system associated with pain and in primary sensitive neurons they colocalize with transient potential receptor vanilloid-TRPV1 providing an anatomical interaction in nociceptor sensitization...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526538/trastuzumab-emtansine-versus-treatment-of-physician-s-choice-in-patients-with-previously-treated-her2-positive-metastatic-breast-cancer-th3resa-final-overall-survival-results-from-a-randomised-open-label-phase-3-trial
#9
Ian E Krop, Sung-Bae Kim, Antonio Gonzalez Martin, Patricia M LoRusso, Jean-Marc Ferrero, Tanja Badovinac-Crnjevic, Silke Hoersch, Melanie Smitt, Hans Wildiers
BACKGROUND: In the randomised, parallel assignment, open-label, phase 3 TH3RESA study, progression-free survival was significantly longer with trastuzumab emtansine versus treatment of physician's choice in previously treated patients with HER2-positive advanced breast cancer. We report results from the final overall survival analysis of the TH3RESA trial. METHODS: Eligible patients for the TH3RESA trial were men and women (aged ≥18 years) with centrally confirmed HER2-positive advanced breast cancer previously treated with both trastuzumab and lapatinib (advanced setting) and a taxane (any setting) and with progression on two or more HER2-directed regimens in the advanced setting...
May 16, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28526021/current-status-challenges-and-the-way-forward-for-clinical-pharmacy-service-in-ethiopian-public-hospitals
#10
Arebu Issa Bilal, Zelalem Tilahun, Gebremedhin Beedemariam Gebretekle, Belete Ayalneh, Bisrat Hailemeskel, Ephrem Engidawork
BACKGROUND: Clinical pharmacy service has evolved steadily over the past few decades and is now contributing to the 'patient care journey' at all stages. It is improving the safety and effectiveness of medicines and has made a significant contribution to the avoidance of medication errors. In Ethiopia, clinical pharmacy service is in its initial phase, being started in July 2013. This study therefore aimed at assessing the status, challenges and way forward of clinical pharmacy service in the country...
May 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28525920/torsade-de-pointes-arrhythmias-arise-at-the-site-of-maximal-heterogeneity-of-repolarization-in-the-chronic-complete-atrioventricular-block-dog
#11
Albert Dunnink, Thom R G Stams, Alexandre Bossu, Veronique M F Meijborg, Jet D M Beekman, Sofieke C Wijers, Jacques M T De Bakker, Marc A Vos
Aims: The chronic complete atrioventricular block (CAVB) dog is highly sensitive for drug-induced torsade de pointes (TdP) arrhythmias. Focal mechanisms have been suggested as trigger for TdP onset; however, its exact mechanism remains unclear. In this study, detailed mapping of the ventricles was performed to assess intraventricular heterogeneity of repolarization in relation to the initiation of TdP. Methods and results: In 8 CAVB animals, 56 needles, each containing 4 electrodes, were inserted in the ventricles...
May 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28525651/selecting-elephant-grass-families-and-progenies-to-produce-bioenergy-through-mixed-models-reml-blup
#12
E V Rodrigues, R F Daher, A Dos Santos, M Vivas, J C Machado, G do A Gravina, Y P de Souza, A K Vidal, A Dos S Rocha, R S Freitas
Brazil has great potential to produce bioenergy since it is located in a tropical region that receives high incidence of solar energy and presents favorable climatic conditions for such purpose. However, the use of bioenergy in the country is below its productivity potential. The aim of the current study was to select full-sib progenies and families of elephant grass (Pennisetum purpureum S.) to optimize phenotypes relevant to bioenergy production through mixed models (REML/BLUP). The circulating diallel-based crossing of ten elephant grass genotypes was performed...
May 18, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28522526/blocking-promiscuous-activation-at-cryptic-promoters-directs-cell-type-specific-gene-expression
#13
Jongmin Kim, Chenggang Lu, Shrividhya Srinivasan, Stephan Awe, Alexander Brehm, Margaret T Fuller
To selectively express cell type-specific transcripts during development, it is critical to maintain genes required for other lineages in a silent state. Here, we show in the Drosophila male germline stem cell lineage that a spermatocyte-specific zinc finger protein, Kumgang (Kmg), working with the chromatin remodeler dMi-2 prevents transcription of genes normally expressed only in somatic lineages. By blocking transcription from normally cryptic promoters, Kmg restricts activation by Aly, a component of the testis-meiotic arrest complex, to transcripts for male germ cell differentiation...
May 19, 2017: Science
https://www.readbyqxmd.com/read/28522338/year-round-influenza-immunisation-during-pregnancy-in-nepal-a-phase-4-randomised-placebo-controlled-trial
#14
Mark C Steinhoff, Joanne Katz, Janet A Englund, Subarna K Khatry, Laxman Shrestha, Jane Kuypers, Laveta Stewart, Luke C Mullany, Helen Y Chu, Steven C LeClerq, Naoko Kozuki, Monica McNeal, Adriana M Reedy, James M Tielsch
BACKGROUND: Influenza immunisation during pregnancy is recommended but not widely implemented in some low-income regions. We assessed the safety and efficacy in mothers and infants of year-round maternal influenza immunisation in Nepal, where influenza viruses circulate throughout the year. METHODS: In this phase 4, randomised, placebo-controlled trial, we enrolled two consecutive sequential annual cohorts of pregnant women from the Sarlahi district in southern Nepal...
May 15, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28522185/orofacial-complex-regional-pain-syndrome-pathophysiologic-mechanisms-and-functional-mri
#15
Yeon-Hee Lee, Kyung Mi Lee, Hyug-Gi Kim, Soo-Kyung Kang, Q-Schick Auh, Jyung-Pyo Hong, Yang-Hyun Chun
Complex regional pain syndrome (CRPS) is one of the most challenging chronic pain conditions and is characterized by burning pain, allodynia, hyperalgesia, autonomic changes, trophic changes, edema, and functional loss involving mainly the extremities. Until recently, very few reports have been published concerning CRPS involving the orofacial area. We report on a 50-year-old female patient who presented with unbearable pain in all of her teeth and hypersensitivity of the facial skin. She also reported intractable pain in both extremities accompanied by temperature changes and orofacial pain that increased when the other pains were aggravated...
March 14, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28521747/insights-into-the-ancestral-organisation-of-the-mammalian-mhc-class-ii-region-from-the-genome-of-the-pteropid-bat-pteropus-alecto
#16
Justin H J Ng, Mary Tachedjian, Lin-Fa Wang, Michelle L Baker
BACKGROUND: Bats are an extremely successful group of mammals and possess a variety of unique characteristics, including their ability to co-exist with a diverse range of pathogens. The major histocompatibility complex (MHC) is the most gene dense and polymorphic region of the genome and MHC class II (MHC-II) molecules play a vital role in the presentation of antigens derived from extracellular pathogens and activation of the adaptive immune response. Characterisation of the MHC-II region of bats is crucial for understanding the evolution of the MHC and of the role of pathogens in shaping the immune system...
May 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28521734/higher-order-organisation-of-extremely-amplified-potentially-functional-and-massively-methylated-5s-rdna-in-european-pikes-esox-sp
#17
Radka Symonová, Konrad Ocalewicz, Lech Kirtiklis, Giovanni Battista Delmastro, Šárka Pelikánová, Sonia Garcia, Aleš Kovařík
BACKGROUND: Pikes represent an important genus (Esox) harbouring a pre-duplication karyotype (2n = 2x = 50) of economically important salmonid pseudopolyploids. Here, we have characterized the 5S ribosomal RNA genes (rDNA) in Esox lucius and its closely related E. cisalpinus using cytogenetic, molecular and genomic approaches. Intragenomic homogeneity and copy number estimation was carried out using Illumina reads. The higher-order structure of rDNA arrays was investigated by the analysis of long PacBio reads...
May 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28521139/global-representations-of-goal-directed-behavior-in-distinct-cell-types-of-mouse-neocortex
#18
William E Allen, Isaac V Kauvar, Michael Z Chen, Ethan B Richman, Samuel J Yang, Ken Chan, Viviana Gradinaru, Benjamin E Deverman, Liqun Luo, Karl Deisseroth
The successful planning and execution of adaptive behaviors in mammals may require long-range coordination of neural networks throughout cerebral cortex. The neuronal implementation of signals that could orchestrate cortex-wide activity remains unclear. Here, we develop and apply methods for cortex-wide Ca(2+) imaging in mice performing decision-making behavior and identify a global cortical representation of task engagement encoded in the activity dynamics of both single cells and superficial neuropil distributed across the majority of dorsal cortex...
May 17, 2017: Neuron
https://www.readbyqxmd.com/read/28520682/progress-in-the-pathogenesis-and-treatment-of-cardiac-manifestations-of-neonatal-lupus
#19
Peter Izmirly, Amit Saxena, Jill P Buyon
PURPOSE OF REVIEW: To provide new insights into pathogenesis, prevention and management of cardiac manifestations of neonatal lupus (cardiac neonatal lupus) and issues pertinent to all anti-SSA/Ro positive individuals of childbearing age. RECENT FINDINGS: Antibody specificity with high risk for cardiac neonatal lupus remains elusive, but high titers of Ro60, Ro52 or Ro52p200 antibodies appear to be required. Varying antibody specificities to the p200 region of Ro52 can induce first-degree block in a rodent model...
May 16, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28515729/growth-and-yield-responses-of-cowpea-to-inoculation-and-phosphorus-fertilization-in-different-environments
#20
Stephen Kyei-Boahen, Canon E N Savala, David Chikoye, Robert Abaidoo
Cowpea (Vigna unguiculata) is a major source of dietary protein and essential component of the cropping systems in semi-arid regions of Sub-Saharan Africa. However, yields are very low due to lack of improved cultivars, poor management practices, and limited inputs use. The objectives of this study were to assess the effects of rhizobia inoculant and P on nodulation, N accumulation and yield of two cowpea cultivars in Mozambique. Field study was conducted in three contrasting environments during the 2013/2014 and 2014/2015 seasons using randomized complete block design with four replications and four treatments...
2017: Frontiers in Plant Science
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