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https://www.readbyqxmd.com/read/28817824/parametric-linkage-analysis-identifies-five-novel-genome-wide-significant-loci-for-familial-lung-cancer
#1
Anthony M Musolf, Claire L Simpson, Mariza de Andrade, Diptasri Mandal, Colette Gaba, Ping Yang, Yafang Li, Ming You, Elena Y Kupert, Marshall W Anderson, Ann G Schwartz, Susan M Pinney, Christopher I Amos, Joan E Bailey-Wilson
OBJECTIVE: One of four American cancer patients dies of lung cancer. Environmental factors such as tobacco smoking are known to affect lung cancer risk. However, there is a genetic factor to lung cancer risk as well. Here, we perform parametric linkage analysis on family-based genotype data in an effort to find genetic loci linked to the disease. METHODS: 197 individuals from families with a high-risk history of lung cancer were recruited and genotyped using an Illumina array...
August 18, 2017: Human Heredity
https://www.readbyqxmd.com/read/28817589/relationship-between-atherosclerosis-and-occlusal-support-of-natural-teeth-with-mediating-effect-of-atheroprotective-nutrients-from-the-sonic-study
#2
Sayaka Tada, Kazunori Ikebe, Kei Kamide, Yasuyuki Gondo, Chisato Inomata, Hajime Takeshita, Ken-Ich Matsuda, Masahiro Kitamura, Shinya Murakami, Mai Kabayama, Ryousuke Oguro, Chikako Nakama, Tatsuo Kawai, Koichi Yamamoto, Ken Sugimoto, Ayumi Shintani, Takuma Ishihara, Yasumichi Arai, Yukie Masui, Ryutaro Takahashi, Hiromi Rakugi, Yoshinobu Maeda
Whereas most of studies investigating relationship between oral health and atherosclerosis have focused on periodontitis, very few of them were examined about occlusal status of natural teeth which possibly influence dietary habit. The primary aim of this cross-sectional study was to investigate the association between the occlusal support of posterior teeth and the prevalence of atherosclerosis in community-dwelling septuagenarians. Also, the second aim was to test the hypothesis that the intake of key nutrients for atherosclerosis prevention would have a mediating effect on the relationship between the occlusal status and atherosclerosis...
2017: PloS One
https://www.readbyqxmd.com/read/28817393/increased-expiratory-computed-tomography-density-reveals-possible-abnormalities-in-radiologically-preserved-lung-parenchyma-in-idiopathic-pulmonary-fibrosis
#3
Valentina Petroulia, Manuela Funke, Pascal Zumstein, Sabina Berezowska, Lukas Ebner, Thomas Geiser, Nenad Torbica, Johannes Heverhagen, Alexander Poellinger
OBJECTIVES: Idiopathic pulmonary fibrosis (IPF) is a progressive lethal chronic lung disease with unclear pathogenesis. Radiological hallmark is the pattern of usual interstitial pneumonia accentuated in peripheral and basal areas with otherwise preserved lung structure. One hypothesis is that alveolar collapse and consequent induration lead to fibrotic transformation of lung tissue. The aim of the study was to investigate normal-appearing tissue during expiration for signs of collapsibility and differences from other diseases or controls...
August 16, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28816876/osteoporotic-thoracolumbar-fractures-how-are-they-different-classification-and-treatment-algorithm
#4
Shanmuganathan Rajasekaran, Rishi M Kanna, Klaus J Schnake, Alexander R Vaccaro, Gregory D Schroeder, Said Sadiqi, Cumhur Oner
Osteoporotic vertebral fractures constitute at least 50% of the osteoporotic fractures that happen worldwide. Occurrence of osteoporotic fractures make the elderly patient susceptible for further fractures and increases the morbidity due to kyphosis and pain; the mortality risk is also increased in these patients. Most fractures occur in the thoracic and thoracolumbar region and are often stable. Different descriptive and prognostic classification systems have been described, but none are universally accepted...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28816167/variabilities-of-magnetic-resonance-imaging-computed-tomography-and-positron-emission-tomography-computed-tomography-based-tumor-and-lymph-node-delineations-for-lung-cancer-radiation-therapy-planning
#5
Kishor Karki, Siddharth Saraiya, Geoffrey D Hugo, Nitai Mukhopadhyay, Nuzhat Jan, Jessica Schuster, Matthew Schutzer, Lester Fahrner, Robert Groves, Kathryn M Olsen, John C Ford, Elisabeth Weiss
PURPOSE: To investigate interobserver delineation variability for gross tumor volumes of primary lung tumors and associated pathologic lymph nodes using magnetic resonance imaging (MRI), and to compare the results with computed tomography (CT) alone- and positron emission tomography (PET)-CT-based delineations. METHODS AND MATERIALS: Seven physicians delineated the tumor volumes of 10 patients for the following scenarios: (1) CT only, (2) PET-CT fusion images registered to CT ("clinical standard"), and (3) postcontrast T1-weighted MRI registered with diffusion-weighted MRI...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28814752/oncofetal-hmga2-effectively-curbs-unconstrained-and-dna-supercoiling
#6
Xiaodan Zhao, Sabrina Peter, Peter Dröge, Jie Yan
HMGA2 belongs to the family of the high mobility group (HMG) proteins. It binds DNA via three AT-hook domains to the minor groove of adenine-thymine (AT) rich DNA. Recently, a new function of HMGA2 as a replication fork chaperone that protects stem and cancer cells from replication fork collapse induced by chemotherapeutic agents was uncovered, suggesting a previously uncharacterized binding at replication forks. In this study, we examined HMGA2 binding to four DNA structures relevant to replication forks, namely ds DNA, ss DNA, forked DNA and supercoiled DNA plectonemes...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28813674/an-integrated-systems-biology-approach-identifies-trim25-as-a-key-determinant-of-breast-cancer-metastasis
#7
Logan A Walsh, Mariano J Alvarez, Erich Y Sabio, Marsha Reyngold, Vladimir Makarov, Suranjit Mukherjee, Ken-Wing Lee, Alexis Desrichard, Şevin Turcan, Martin G Dalin, Vinagolu K Rajasekhar, Shuibing Chen, Linda T Vahdat, Andrea Califano, Timothy A Chan
At the root of most fatal malignancies are aberrantly activated transcriptional networks that drive metastatic dissemination. Although individual metastasis-associated genes have been described, the complex regulatory networks presiding over the initiation and maintenance of metastatic tumors are still poorly understood. There is untapped value in identifying therapeutic targets that broadly govern coordinated transcriptional modules dictating metastatic progression. Here, we reverse engineered and interrogated a breast cancer-specific transcriptional interaction network (interactome) to define transcriptional control structures causally responsible for regulating genetic programs underlying breast cancer metastasis in individual patients...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28812627/direct-observation-of-increasing-recovery-length-before-collapse-of-a-marine-benthic-ecosystem
#8
Luca Rindi, Martina Dal Bello, Lei Dai, Jeff Gore, Lisandro Benedetti-Cecchi
Ecosystems can experience catastrophic transitions to alternative states, yet recent results have suggested that slowing down in rates of recovery after a perturbation may provide advance warning that a critical transition is approaching. Perturbation experiments with microbial populations have supported this hypothesis under controlled laboratory conditions, but evidence from natural ecosystems remains rare. Here, we manipulated rocky intertidal canopy algae to test the hypothesis that the spatial scale at which the system recovers from a perturbation in space should increase as the system approaches the tipping point, marking the transition from a canopy-dominated to a turf-dominated state...
May 8, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812591/body-size-shifts-and-early-warning-signals-precede-the-historic-collapse-of-whale-stocks
#9
Christopher F Clements, Julia L Blanchard, Kirsty L Nash, Mark A Hindell, Arpat Ozgul
Predicting population declines is a key challenge in the face of global environmental change. Abundance-based early warning signals have been shown to precede population collapses; however, such signals are sensitive to the low reliability of abundance estimates. Here, using historical data on whales harvested during the 20th century, we demonstrate that early warning signals can be present not only in the abundance data, but also in the more reliable body size data of wild populations. We show that during the period of commercial whaling, the mean body size of caught whales declined dramatically (by up to 4 m over a 70-year period), leading to early warning signals being detectable up to 40 years before the global collapse of whale stocks...
June 22, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812436/the-mechanism-of-protective-effect-of-crocin-against-liver-mitochondrial-toxicity-caused-by-arsenic-iii
#10
Bahareh Sadat Yousefsani, Jalal Pourahmad, Hossein Hosseinzadeh
In this study, we want to understand whether crocin could prevent mitochondrial damage caused by As III. For this purpose, we determined different mitochondrial toxicity endpoints caused by As III. We evaluated mitochondrial ROS formation, lipid peroxidation, mitochondrial membrane potential collapse, mitochondrial outer membrane integrity and cytochrome c release. Our results showed that pretreatment with crocin at a concentration of 25 µg/ml significantly (P < 0.001) reduced As III induced mitochondrial ROS formation, lipid peroxidation, mitochondrial membrane potential collapse and mitochondrial swelling...
August 16, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28812342/achieving-a-collapsible-strong-and-highly-thermally-conductive-film-based-on-oriented-functionalized-boron-nitride-nanosheets-and-cellulose-nanofiber
#11
Kai Wu, Jinchao Fang, Jinrui Ma, Rui Huang, Songgang Chai, Feng Chen, Qiang Fu
Boron nitride nanosheets (BNNS) film receives wide attention in both academia and industry due to its high thermal conductivity (TC) and good electrical insulation capability. However, the brittleness and low strength of BNNS film largely limit its application. Herein, functionalized BNNS (f-BNNS) with well-maintained in-plane crystalline structure was firstly prepared utilizing urea in the aqueous solution via ball-milling for the purpose of improving its stability in water and enhancing the interaction with polymer matrix...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28811800/a-comparative-study-of-functional-outcome-of-treatment-of-intra-articular-fractures-of-distal-radius-fixed-with-percutaneous-kirschner-s-wires-vs-t-plate
#12
Jahangir Iqbal Khan, Faisal Nazeer Hussain, Tahir Mehmood, Omer Adil
BACKGROUND & OBJECTIVE: Fractures of the distal radius are common with a variable prognosis in case of intra articular extension. The available options include Plaster, External fixation, Prefabricated Splintage using Ligamentotaxis, K-wire fixation, and open reduction internal fixation with T-plate without an as yet clear advantage of one over the others. If these fractures are allowed to collapse, radial shortening, angulation and articular incongruity may cause permanent deformity and loss of function...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28810758/molecular-conformation-of-linear-alkane-molecules-from-gas-phase-to-bulk-water-through-the-interface
#13
Ezequiel L Murina, Roberto Fernández-Prini, Claudio Pastorino
We studied the behavior of long chain alkanes (LCAs) as they were transferred from gas to bulk water, through the liquid-vapor interface. These systems were studied using umbrella sampling molecular dynamics simulation and we have calculated properties like free energy profiles, molecular orientation, and radius of gyration of the LCA molecules. The results show changes in conformation of the solutes along the path. LCAs adopt pronounced molecular orientations and the larger ones extend appreciably when partially immersed in the interface...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28809578/uv-vis-action-spectroscopy-reveals-a-conformational-collapse-in-hydrogen-rich-dinucleotide-cation-radicals
#14
Joseph A Korn, Jan Urban, Andy Dang, Huong T H Nguyen, Frantisek Turecek
We report the generation of deoxyriboadenosine dinucleotide cation radicals by gas-phase electron transfer to dinucleotide dications and their non-covalent complexes with crown ether ligands. Stable dinucleotide cation radicals of a novel hydrogen-rich type were generated and characterized by tandem mass spectrometry and UV-vis photodissociation (UVPD) action spectroscopy. Electron structure theory analysis indicated that upon electron attachment the dinucleotide dications underwent a conformational collapse followed by intramolecular proton migrations between the nucleobases to give species whose calculated UV-VIS absorption spectra matched the UVPD action spectra...
August 15, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28808695/resolving-multicopy-duplications-de-novo-using-polyploid-phasing
#15
Mark J Chaisson, Sudipto Mukherjee, Sreeram Kannan, Evan E Eichler
While the rise of single-molecule sequencing systems has enabled an unprecedented rise in the ability to assemble complex regions of the genome, long segmental duplications in the genome still remain a challenging frontier in assembly. Segmental duplications are at the same time both gene rich and prone to large structural rearrangements, making the resolution of their sequences important in medical and evolutionary studies. Duplicated sequences that are collapsed in mammalian de novo assemblies are rarely identical; after a sequence is duplicated, it begins to acquire paralog specific variants...
May 2017: Research in Computational Molecular Biology: ... Annual International Conference, RECOMB ...: Proceedings
https://www.readbyqxmd.com/read/28808681/comment-on-how-will-induced-seismicity-in-oklahoma-respond-to-decreased-saltwater-injection-rates-by-c-langenbruch-and-m-d-zoback
#16
Thomas H W Goebel, Jacob I Walter, Kyle Murray, Emily E Brodsky
The state of Oklahoma has experienced an unprecedented increase in earthquake activity since 2009, likely driven by large-scale wastewater injection operations. Statewide injection rates peaked in early 2015 and steadily decreased thereafter, approximately coinciding with collapsing oil prices and regulatory action. If seismic activity is primarily driven by fluid injection, a noticeable seismogenic response to the decrease in injection rates is expected. Langenbruch and Zoback suggest that "the probability of potentially damaging larger events, should significantly decrease by the end of 2016 and approach historic levels within a few years...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28808676/efficacy-and-safety-of-doubly-regulated-vaccinia-virus-in-a-mouse-xenograft-model-of-multiple-myeloma
#17
Muneyoshi Futami, Kota Sato, Kanji Miyazaki, Kenshi Suzuki, Takafumi Nakamura, Arinobu Tojo
Multiple myeloma is a malignancy of plasma cells of the bone marrow. Although the prognosis is variable, no curative therapy has been defined. Vaccinia virus infects cancer cells and kills such cells in a variety of ways. These include direct infection, triggering of immunomediated cell death, and vascular collapse. The potential of the vaccinia virus as an anti-tumor therapy has attracted the attention of oncologists. Interestingly, our preliminary experiments revealed that myeloma cells were particularly susceptible to vaccinia virus...
September 15, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28808019/next-step-in-the-ongoing-arms-race-between-myxoma-virus-and-wild-rabbits-in-australia-is-a-novel-disease-phenotype
#18
Peter J Kerr, Isabella M Cattadori, June Liu, Derek G Sim, Jeff W Dodds, Jason W Brooks, Mary J Kennett, Edward C Holmes, Andrew F Read
In host-pathogen arms races, increases in host resistance prompt counteradaptation by pathogens, but the nature of that counteradaptation is seldom directly observed outside of laboratory models. The best-documented field example is the coevolution of myxoma virus (MYXV) in European rabbits. To understand how MYXV in Australia has continued to evolve in wild rabbits under intense selection for genetic resistance to myxomatosis, we compared the phenotypes of the progenitor MYXV and viral isolates from the 1950s and the 1990s in laboratory rabbits with no resistance...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28808008/mathematical-model-reveals-role-of-nucleotide-signaling-in-airway-surface-liquid-homeostasis-and-its-dysregulation-in-cystic-fibrosis
#19
Conner I Sandefur, Richard C Boucher, Timothy C Elston
Mucociliary clearance is composed of three components (i.e., mucin secretion, airway surface hydration, and ciliary-activity) which function coordinately to clear inhaled microbes and other foreign particles from airway surfaces. Airway surface hydration is maintained by water fluxes driven predominantly by active chloride and sodium ion transport. The ion channels that mediate electrogenic ion transport are regulated by extracellular purinergic signals that signal through G protein-coupled receptors. These purinoreceptors and the signaling pathways they activate have been identified as possible therapeutic targets for treating lung disease...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28807992/a-midsummer-night-s-strange-reality
#20
Timothy Stoltzfus Jost
After GOP efforts to repeal and replace the ACA collapsed in the Senate, attention is focused on whether cost-sharing reduction payments will continue.
August 14, 2017: Health Affairs
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