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https://www.readbyqxmd.com/read/28092920/evolutionary-genomics-of-the-cold-adapted-diatom-fragilariopsis-cylindrus
#1
Thomas Mock, Robert P Otillar, Jan Strauss, Mark McMullan, Pirita Paajanen, Jeremy Schmutz, Asaf Salamov, Remo Sanges, Andrew Toseland, Ben J Ward, Andrew E Allen, Christopher L Dupont, Stephan Frickenhaus, Florian Maumus, Alaguraj Veluchamy, Taoyang Wu, Kerrie W Barry, Angela Falciatore, Maria I Ferrante, Antonio E Fortunato, Gernot Glöckner, Ansgar Gruber, Rachel Hipkin, Michael G Janech, Peter G Kroth, Florian Leese, Erika A Lindquist, Barbara R Lyon, Joel Martin, Christoph Mayer, Micaela Parker, Hadi Quesneville, James A Raymond, Christiane Uhlig, Ruben E Valas, Klaus U Valentin, Alexandra Z Worden, E Virginia Armbrust, Matthew D Clark, Chris Bowler, Beverley R Green, Vincent Moulton, Cock van Oosterhout, Igor V Grigoriev
The Southern Ocean houses a diverse and productive community of organisms. Unicellular eukaryotic diatoms are the main primary producers in this environment, where photosynthesis is limited by low concentrations of dissolved iron and large seasonal fluctuations in light, temperature and the extent of sea ice. How diatoms have adapted to this extreme environment is largely unknown. Here we present insights into the genome evolution of a cold-adapted diatom from the Southern Ocean, Fragilariopsis cylindrus, based on a comparison with temperate diatoms...
January 16, 2017: Nature
https://www.readbyqxmd.com/read/28092813/walking-mechanics-for-patellofemoral-pain-subjects-with-similar-self-reported-pain-levels-can-differ-based-upon-neuromuscular-activation
#2
Matthew K Seeley, S Jun Son, Hyunsoo Kim, J Ty Hopkins
Patellofemoral pain (PFP) is often studied on subjects who are classified using only self-reported data. Neuromuscular activation influences movement mechanics for PFP subjects, but is not likely to be self-reported. We compared lower-extremity mechanics, during a common movement (walking), between two subdivisions of a group of PFP subjects that were similar, based on common self-report tools, but different, based on a common objective measure of quadriceps activation. Our intent was to highlight the importance of objectively considering neuromuscular activation when researching PFP movement mechanics...
January 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28092782/an-intestinal-carcinoid-causing-transient-jejunal-intussusception-in-an-adult-a-case-report
#3
Yagan Pillay
INTRODUCTION: Transient jejunal intussusception in an adult is a rare clinical finding as reported in the English literature. The diagnosis is usually a matter of exclusion given the extremely rare nature of this medical condition. PRESENTATION OF THE CASE: A young female presented to our hospital with abdominal pain and distention of six months duration. The episodes were intermittent in nature and resolved with conservative management. The aetiology remained obscure until a computerized tomography(CT) scan diagnosed a small bowel intussusceptionIntraoperatively a small bowel tumour was identified and resected...
January 3, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28092726/pathophysiology-incidence-and-predictors-of-conduction-disturbances-during-transcatheter-aortic-valve-implantation
#4
Marco Barbanti, Simona Gulino, Giuliano Costa, Corrado Tamburino
Over the past decade, transcatheter aortic valve implantation (TAVI) has evolved rapidly toward an extremely reproducible, safe and effective procedure, with a marked reduction of its related complications. However, the occurrence of conduction disturbances and the need for permanent pacemaker implantation (PPI) after TAVI remains a concern. Areas covered: In this article review, we will go through the mechanisms involved in conduction disturbances after TAVI, and we will discuss the key aspects of pathophysiology, incidence and predictors of conduction disturbances following Transcatheter Aortic Valve Implantation...
January 16, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28092700/association-between-thyroid-autoimmunity-and-helicobacter-pylori-infection
#5
Yun Mi Choi, Tae Yong Kim, Eui Young Kim, Eun Kyung Jang, Min Ji Jeon, Won Gu Kim, Young Kee Shong, Won Bae Kim
Background/Aims: There have been controversial reports linking Helicobacter pylori infection to autoimmune thyroid disease (AITD). However, data regarding the relationship are limited for Asian populations, which have an extremely high prevalence of H. pylori infection. We performed this study to investigate the association between H. pylori infection and AITD in Koreans. Methods: This study involved adults aged 30 to 70 years who had visited a health promotion center...
January 16, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28092664/expression-of-specific-inflammasome-gene-modules-stratifies-older-individuals-into-two-extreme-clinical-and-immunological-states
#6
David Furman, Junlei Chang, Lydia Lartigue, Christopher R Bolen, François Haddad, Brice Gaudilliere, Edward A Ganio, Gabriela K Fragiadakis, Matthew H Spitzer, Isabelle Douchet, Sophie Daburon, Jean-François Moreau, Garry P Nolan, Patrick Blanco, Julie Déchanet-Merville, Cornelia L Dekker, Vladimir Jojic, Calvin J Kuo, Mark M Davis, Benjamin Faustin
Low-grade, chronic inflammation has been associated with many diseases of aging, but the mechanisms responsible for producing this inflammation remain unclear. Inflammasomes can drive chronic inflammation in the context of an infectious disease or cellular stress, and they trigger the maturation of interleukin-1β (IL-1β). Here we find that the expression of specific inflammasome gene modules stratifies older individuals into two extremes: those with constitutive expression of IL-1β, nucleotide metabolism dysfunction, elevated oxidative stress, high rates of hypertension and arterial stiffness; and those without constitutive expression of IL-1β, who lack these characteristics...
January 16, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28092660/the-role-of-peripheral-immune-cells-in-the-cns-in-steady-state-and-disease
#7
REVIEW
Marco Prinz, Josef Priller
The CNS is protected by the immune system, including cells that reside directly within the CNS and help to ensure proper neural function, as well as cells that traffic into the CNS with disease. The CNS-resident immune system is comprised mainly of innate immune cells and operates under homeostatic conditions. These myeloid cells in the CNS parenchyma and at CNS-periphery interfaces are highly specialized but also extremely plastic cells that immediately react to any changes in CNS homeostasis and become reactive in the context of neurodegenerative disorders such as Alzheimer's disease or Parkinson's disease...
January 16, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28092650/sociodemographic-disparities-in-chronic-pain-based-on-12-year-longitudinal-data
#8
Hanna Grol-Prokopczyk
Existing estimates of sociodemographic disparities in chronic pain in the United States are based on cross-sectional data, often treat pain as a binary construct, and rarely test for nonresponse or other types of bias. This study uses 7 biennial waves of national data from the Health and Retirement Study (1998-2010; n = 19,776) to describe long-term pain disparities among older (age 51+) American adults. It also investigates whether pain severity, reporting heterogeneity, survey nonresponse, and/or mortality selection might bias estimates of social disparities in pain...
February 2017: Pain
https://www.readbyqxmd.com/read/28092630/comparative-monte-carlo-study-on-the-performance-of-integration-and-list-mode-detector-configurations-for-carbon-ion-computed-tomography
#9
Sebastian Meyer, Chiara Gianoli, Lorena Magallanes, Benedikt Kopp, Thomas Tessonnier, Guillaume Landry, George Dedes, Bernd Voss, Katia Parodi
Ion beam therapy offers the possibility of a highly conformal tumor-dose distribution; however, this technique is extremely sensitive to inaccuracies in the treatment procedures. Ambiguities in the conversion of Hounsfield units of the treatment planning x-ray CT to relative stopping power (RSP) can cause uncertainties in the estimated ion range of up to several millimeters. Ion CT (iCT) represents a favorable solution allowing to directly assess the RSP. In this simulation study we investigate the performance of the integration-mode configuration for carbon iCT, in comparison with a single-particle approach under the same set-up...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28092582/automatic-prediction-of-health-status-using-smartphone-derived-behaviour-profiles
#10
Daniel Kelly, Kevin Curran, Brian Caulfield
OBJECTIVE: Current methods of assessing the affect a patients' health has on their daily life are extremely limited. The aim of this work is to develop a sensor based approach to health status measurement in order to objectively measure health status. METHODS: Techniques to generate human behaviour profiles, derived from smartphone accelerometer and gyroscope sensors, are proposed. Experiments, using SVM regression models, are then conducted in order to evaluate the use of the proposed behaviour profiles as a predictor of health status...
January 9, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28092406/llfh1-mediated-interaction-between-actin-fringe-and-exocytic-vesicles-is-involved-in-pollen-tube-tip-growth
#11
Shanwei Li, Huaijian Dong, Weike Pei, Chaonan Liu, Sha Zhang, Tiantian Sun, Xiuhua Xue, Haiyun Ren
Pollen tube tip growth is an extreme form of polarized cell growth, which requires polarized exocytosis based on a dynamic actin cytoskeleton. However, the molecular basis for the connection between actin filaments and exocytic vesicles is unclear. Here, we identified a Lilium longiflorum pollen-specific formin (LlFH1) and found that it localized at the apical vesicles and plasma membrane (PM). Overexpression of LlFH1 induced excessive actin cables in the tube tip region, and downregulation of LlFH1 eliminated the actin fringe...
January 16, 2017: New Phytologist
https://www.readbyqxmd.com/read/28092365/cancer-cell-chemokines-direct-chemotaxis-of-activated-stellate-cells-in-pancreatic-ductal-adenocarcinoma
#12
Ishan Roy, Kathleen A Boyle, Emily P Vonderhaar, Noah P Zimmerman, Egal Gorse, A Craig Mackinnon, Rosa F Hwang, Janusz Franco-Barraza, Edna Cukierman, Susan Tsai, Douglas B Evans, Michael B Dwinell
The mechanisms by which the extreme desmoplasia observed in pancreatic tumors develops remain unknown and its role in pancreatic cancer progression is unsettled. Chemokines have a key role in the recruitment of a wide variety of cell types in health and disease. Transcript and protein profile analyses of human and murine cell lines and human tissue specimens revealed a consistent elevation in the receptors CCR10 and CXCR6, as well as their respective ligands CCL28 and CXCL16. Elevated ligand expression was restricted to tumor cells, whereas receptors were in both epithelial and stromal cells...
January 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28092337/anatomical-basis-and-clinical-application-of-synovial-flaps-in-the-wrist-and-distal-forearm
#13
David L Colen, Jiun-Ting Yeh, Lawrence B Colen
Neuropathic symptoms after median nerve repair at the wrist or secondary to refractory carpal tunnel syndrome may become debilitating. These symptoms develop due to perineural adhesions, intraneural fibrosis and fixation of the nerve to the transverse carpal ligament after surgery and often require neurolysis. Interposition of vascularized soft tissue over the median nerve at the time of neurolysis prevents recurrence of such adhesions. The synovial flap, fashioned from the synovial lining of the flexor tendon sheath, is an ideal tissue for this purpose...
January 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28092278/delayed-onset-central-pain-due-to-degeneration-of-ischemic-transcallosal-fibers-after-corpus-callosum-hemorrhage
#14
Sung Ho Jang, Chul Hoon Chang, Young Jin Jung, Han Do Lee
AIMS: A patient developed delayed-onset central pain due to degeneration of the spinothalamic tract resulting from degeneration of the ischemic transcallosal fibers, in the aftermath of a corpus callosum (CC) hemorrhage. The detection and diagnosis of these lesions using diffusion tensor tractography are described. METHODS: A 59-yr-old man underwent conservative management for hemorrhages in the CC and lateral ventricle that resulted from hitting his head against a wall while falling...
January 13, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28092171/a-pangenotypic-single-tablet-regimen-of-sofosbuvir-velpatasvir-for-the-treatment-of-chronic-hepatitis-c-infection
#15
Ilan S Weisberg, Ira M Jacobson
Hepatitis C virus (HCV) infects nearly 170 million people worldwide and is a leading cause of progressive liver damage, cirrhosis, and hepatocellular carcinoma. Curative therapies have historically relied on interferon-based treatments and were limited by significant toxicity and poor response rates, particularly among patients with prior treatment failure and advanced hepatic fibrosis. The recent advent of direct acting antiviral (DAA) agents which target key steps in the HCV viral life cycle has transformed the landscape of HCV treatment by offering highly effective and well tolerated interferon-free treatments...
January 16, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28092092/domains-of-daily-physical-activity-in-children-with-mitochondrial-disease-a-3d-accelerometry-approach
#16
Saskia Koene, Ilse Dirks, Esmee van Mierlo, Pascal R de Vries, Anjo J W M Janssen, Jan A M Smeitink, Arjen Bergsma, Hans Essers, Kenneth Meijer, Imelda J M de Groot
Feasible, sensitive and clinically relevant outcome measures are of extreme importance when designing clinical trials. For paediatric mitochondrial disease, no robust end point has been described to date. The aim of this study was to select the domains of daily physical activity, which can be measured by 3D accelerometry, that could serve as sensitive end points in future clinical trials in children with mitochondrial disorders.In this exploratory observational study, 17 patients with mitochondrial disease and 16 age- and sex-matched controls wore 3D accelerometers at the upper leg, upper arm, lower arm and chest during one weekend...
January 17, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28092030/proteomic-clustering-analysis-of-sh2-domain-datasets
#17
Karl Jablonowski
Proteomic clustering analysis provides a means of identifying relationships and visualizing those relationships in an extremely complex field of study with many interacting parts. With recent high-throughput studies of Src Homology 2 (SH2) domains, many and varied datasets are being amassed. A strategy for analyzing patterns between these large datasets is required to transform the information into knowledge. The methods for creating neighbor-joining phylogenetic trees, pairs scatter plots, and two-dimensional hierarchical clustering heatmaps are just a few of the diverse methods available to a proteomic researcher...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28092017/transanal-total-mesorectal-excision-for-a-large-leiomyosarcoma-at-the-lower-rectum-a-case-report-and-literature-review
#18
Nobuaki Hoshino, Koya Hida, Kenji Kawada, Takaki Sakurai, Yoshiharu Sakai
BACKGROUND: Rectal leiomyosarcoma (LMS) is an extremely rare disease. Previously, LMS was not properly distinguishable from gastrointestinal stromal tumor (GIST) until c-kit, a characteristic marker of GIST, was discovered in 1998. No standard therapeutic strategy for gastrointestinal LMS has been established except for surgical resection because of its rarity. Rectal LMS is often accompanied by symptoms, which can enable detection at a small size. However, when a large LMS is detected at the lower rectum, it is difficult to excise due to the narrow pelvic space...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28091970/comparison-of-two-adsorbent-based-de-bittering-procedures-for-neem-azadirachta-indica-a-juss-tea-effect-on-polyphenols-anti-oxidant-capacity-color-and-volatile-profile
#19
Abhinandya Datta, Ingolf U Grün, Misha T Kwasniewski, Lakdas N Fernando
Bitterness reduction, especially of foods and beverages containing phytonutrients, is one of the biggest challenges in the food industry because bitterness has a deleterious effect on the taste profile of foods and beverages. Neem (Azadirachta indica A. Juss) is a medicinal tree, indigenous to the Indian-subcontinent, whose medicinal properties have led to it being heralded as the tree which is the "panacea for all diseases". However, neem leaf is extremely bitter, in large part due to its limonoid content, making it unpalatable...
January 14, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28091784/recognition-of-d-penicillamine-using-schiff-base-centered-fluorescent-organic-nanoparticles-and-application-to-medicine-analysis
#20
Prasad G Mahajan, Govind B Kolekar, Shivajirao R Patil
Schiff base centered fluorescent organic compound 1,1'-[(1E,2E)-hydrazine-1,2-diylidenedi(E)methylylidene]- dinaphthalen-2-ol (HN) was synthesized followed by spectral characterization viz., NMR, IR and Mass spectroscopy. The fluorescent nanoparticles of HN prepared using reprecipitation method shows red shifted aggregation induced enhanced emission (AIEE) with respect to HN solution in acetone. The average particle size of nanoparticles (HNNPs) is of 67.2 nm shows sphere shape morphology. The surfactant cetyltrimethyl ammonium bromide (CTAB) used to stabilize HNNPs induces positive charge surface with zeta potential of 11...
January 14, 2017: Journal of Fluorescence
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