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https://www.readbyqxmd.com/read/28535377/mechanism-of-ska-recruitment-by-ndc80-complexes-to-kinetochores
#1
Paweł Ł Janczyk, Katarzyna A Skorupka, John G Tooley, Daniel R Matson, Cortney A Kestner, Thomas West, Owen Pornillos, P Todd Stukenberg
Yeast use the ring-shaped Dam1 complex to slide down depolymerizing microtubules to move chromosomes, but current models suggest that other eukaryotes do not have a sliding ring. We visualized Ndc80 and Ska complexes on microtubules by electron microscopic tomography to identify the structure of the human kinetochore-microtubule attachment. Ndc80 recruits the Ska complex so that the V shape of the Ska dimer interacts along protofilaments. We identify a mutant of the Ndc80 tail that is deficient in Ska recruitment to kinetochores and in orienting Ska along protofilaments in vitro...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28535271/measuring-trachomatous-inflammation-intense-ti-when-prevalence-is-low-provides-data-on-infection-with-chlamydia-trachomatis
#2
Andrea I Zambrano, Beatriz E Muñoz, Harran Mkocha, Laura Dize, Charlotte A Gaydos, Thomas Quinn, Sheila K West
Purpose: Clinical trachoma is the current measure of effectiveness of antibiotic and environmental improvements in trachoma endemic communities. Impact assessments measure only trachomatous inflammation-follicular (TF). Trachomatous inflammation-intense (TI) is not used for decisions on stopping mass drug administration (MDA) or achieving intervention goals. We tested the supposition that TI was not associated with Chlamydia trachomatis when disease prevalence is low. Methods: In 35 communities undergoing MDA as part of a larger project, 110 children ages 1 to 9 years were randomly selected in each community for surveys at baseline, 6, and 12 months...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28534308/impacts-of-terrain-attributes-and-human-activities-on-soil-texture-class-variations-in-hilly-areas-south-west-china
#3
Ai-Di Li, Peng-Tao Guo, Wei Wu, Hong-Bin Liu
Knowledge of soil texture variations is critical for agricultural and engineering applications because texture influences many other soil properties. This study used random forest method to evaluate the effects of human activities and topographic parameters on the spatial variability of soil texture in hilly areas where soil parent material was uniform. The study site covers 252 km(2) and is located in the Upper Yangtze River Basin of south-west China. A total of 3636 samples were collected from the cultivated soils at a depth of 20 cm of dryland (sloping field and terraced land) landscape...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28534030/combining-slaughterhouse-surveillance-data-with-cattle-tracing-scheme-and-environmental-data-to-quantify-environmental-risk-factors-for-liver-fluke-in-cattle
#4
Giles T Innocent, Lucy Gilbert, Edward O Jones, James E McLeod, George Gunn, Iain J McKendrick, Steve D Albon
Liver fluke infection causes serious disease (fasciolosis) in cattle and sheep in many regions of the world, resulting in production losses and additional economic consequences due to condemnation of the liver at slaughter. Liver fluke depends on mud snails as an intermediate host and infect livestock when ingested through grazing. Therefore, environmental factors play important roles in infection risk and climate change is likely to modify this. Here, we demonstrate how slaughterhouse data can be integrated with other data, including animal movement and climate variables to identify environmental risk factors for liver fluke in cattle in Scotland...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28533386/metabolic-basis-to-sherpa-altitude-adaptation
#5
James A Horscroft, Aleksandra O Kotwica, Verena Laner, James A West, Philip J Hennis, Denny Z H Levett, David J Howard, Bernadette O Fernandez, Sarah L Burgess, Zsuzsanna Ament, Edward T Gilbert-Kawai, André Vercueil, Blaine D Landis, Kay Mitchell, Monty G Mythen, Cristina Branco, Randall S Johnson, Martin Feelisch, Hugh E Montgomery, Julian L Griffin, Michael P W Grocott, Erich Gnaiger, Daniel S Martin, Andrew J Murray
The Himalayan Sherpas, a human population of Tibetan descent, are highly adapted to life in the hypobaric hypoxia of high altitude. Mechanisms involving enhanced tissue oxygen delivery in comparison to Lowlander populations have been postulated to play a role in such adaptation. Whether differences in tissue oxygen utilization (i.e., metabolic adaptation) underpin this adaptation is not known, however. We sought to address this issue, applying parallel molecular, biochemical, physiological, and genetic approaches to the study of Sherpas and native Lowlanders, studied before and during exposure to hypobaric hypoxia on a gradual ascent to Mount Everest Base Camp (5,300 m)...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28532768/prevalence-and-complications-of-bicuspid-aortic-valve-in-chinese-according-to-echocardiographic-database
#6
Yijian Li, Xin Wei, Zhengang Zhao, Yanbiao Liao, Jialing He, Tianyuan Xiong, Yuanning Xu, Wenyu Lv, Yuanweixiang Ou, Hong Tang, Yuan Feng, Mao Chen
As transcatheter aortic valve replacement has become an alternative treatment for patients at high risk for surgical aortic valve replacement, bicuspid aortic valve (BAV) draws our attention again. The reported frequency of BAV was 0.5% to 2% in western population. However, there was no such epidemiologic study in Chinese population. Our study sought to investigate the prevalence and complications of BAV in China by echocardiographic database. A total of 668 cases who were confirmed with BAV, identified from 195,708 echocardiographic records of 157,039 patients in the echocardiographic database of West China Hospital (between June 2008 and June 2012), were analyzed retrospectively...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28532602/inactivation-of-west-nile-virus-in-serum-with-heat-ionic-detergent-and-reducing-agent-for-proteomic-applications
#7
Louis A Altamura, Lisa H Cazares, Susan R Coyne, James G Jaissle, Alyssa M Jespersen, Sundus Ahmed, Leonard P Wasieloski, Jeff Garrison, David A Kulesh, Ernst E Brueggemann, Tara Kenny, Michael D Ward, David E Harbourt, Timothy D Minogue
Research involving biosafety level 3 pathogens such as West Nile virus (WNV) is often limited by the limited space and technical constraints of these environments. To conduct complex analytical studies outside of high containment, robust and reliable inactivation methods are needed that maintain compatibility with downstream assays. Here we report the inactivation of WNV in spiked serum samples using a commercially available SDS-PAGE sample buffer for proteomic studies. Using this method, we demonstrate its utility by identification proteins differentially expressed in the serum of mice experimentally infected with WNV...
May 19, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28532572/rates-and-causes-of-accidents-for-general-aviation-aircraft-operating-in-a-mountainous-and-high-elevation-terrain-environment
#8
Marisa Aguiar, Alan Stolzer, Douglas D Boyd
BACKGROUND: Flying over mountainous and/or high elevation terrain is challenging due to rapidly changeable visibility, gusty/rotor winds and downdrafts and the necessity of terrain avoidance. Herein, general aviation accident rates and mishap cause/factors were determined (2001-2014) for a geographical region characterized by such terrain. METHODS: Accidents in single piston engine-powered aircraft for states west of the US continental divide characterized by mountainous terrain and/or high elevation (MEHET) were identified from the NTSB database...
May 19, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28532397/a-systematic-review-of-factors-that-shape-implementation-of-mass-drug-administration-for-lymphatic-filariasis-in-sub-saharan-africa
#9
Adam Silumbwe, Joseph Mumba Zulu, Hikabasa Halwindi, Choolwe Jacobs, Jessy Zgambo, Rosalia Dambe, Mumbi Chola, Gershom Chongwe, Charles Michelo
BACKGROUND: Understanding factors surrounding the implementation process of mass drug administration for lymphatic filariasis (MDA for LF) elimination programmes is critical for successful implementation of similar interventions. The sub-Saharan Africa (SSA) region records the second highest prevalence of the disease and subsequently several countries have initiated and implemented MDA for LF. Systematic reviews have largely focused on factors that affect coverage and compliance, with less attention on the implementation of MDA for LF activities...
May 22, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28531888/right-trac%C3%A2-post-hospitalization-care-transitions-program-to-reduce-readmissions-for-hemodialysis-patients
#10
Rebecca L Wingard, Kathryn McDougall, Billie Axley, Andrew Howard, Cathleen O'Keefe, Nancy Armistead, Janet R Lynch, Sophia Rosen, Len Usvyat, Franklin W Maddux
BACKGROUND: Hemodialysis (HD) patients have high hospitalization rates. This nonrandomized trial tested the effect of a bundle of renal-specific "Right TraC™" strategies on 30-day all-cause readmission rates and, secondarily, 90-day readmissions and overall admissions among HD patients. METHODS: Twenty-six Fresenius clinics in West Virginia, Ohio, and Kentucky participated in the interventions. Eighteen matched clinics served as controls; intervention clinics also served as their own controls...
May 23, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28531182/selection-of-a-biosafety-level-1-bsl-1-surrogate-to-evaluate-surface-disinfection-efficacy-in-ebola-outbreaks-comparison-of-four-bacteriophages
#11
Karin Gallandat, Daniele Lantagne
The 2014 West African Ebola virus disease outbreak was the largest to date, and conflicting, chlorine-based surface disinfection protocols to interrupt disease transmission were recommended. We identified only one study documenting surface disinfection efficacy against the Ebola virus, showing a >6.6 log reduction after 5-minute exposure to 0.5% sodium hypochlorite (NaOCl) based on small-scale tests (Cook et al. (2015)). In preparation for future extensive, large-scale disinfection efficacy experiments, we replicated the Cook et al...
2017: PloS One
https://www.readbyqxmd.com/read/28531109/physical-activity-and-quality-of-life-in-cancer-survivors-a-meta-synthesis-of-qualitative-research
#12
REVIEW
Shaunna Burke, Amanda Wurz, Andrew Bradshaw, Stephanie Saunders, Malcolm A West, Jennifer Brunet
Qualitative research on the impact of physical activity on quality of life (QoL) in adults diagnosed with cancer is accumulating. However, the field of physical activity and cancer survivorship lack a synthesis of this research to reliably understand the implications for future research and practice. The aim of this meta-synthesis was to identify, appraise, and synthesize qualitative research on cancer survivors' perspectives of the impact of physical activity on their QoL. Seven electronic databases were searched for original studies published in English, and reference lists of relevant studies were hand-searched to identify additional studies...
May 20, 2017: Cancers
https://www.readbyqxmd.com/read/28530481/hormone-replacement-therapy-in-pre-menopausal-women-undergoing-bilateral-salpingo-oophorectomy-for-benign-disease-a-review-of-practice
#13
Alison Richardson, Emily West, Mike Cust
Introduction The National Institute for Health and Care Excellence (NICE) guideline on the diagnosis and management of the menopause states that women who are likely to go through the menopause as a result of surgical treatment should be offered information about the menopause and the importance of starting hormonal replacement therapy before they have their treatment. Objectives To determine compliance with NICE guidelines at the Royal Derby Hospital. Study design We undertook a retrospective review of all pre-menopausal women undergoing bilateral salpingo-oophorectomy for benign pathology between 1 January 2016 and 30 June 2016...
January 1, 2017: Post Reproductive Health
https://www.readbyqxmd.com/read/28530466/angiotensin-type-1-receptor-a1166c-polymorphism-and-systemic-lupus-erythematosus-correlation-with-cellular-immunity-and-oxidative-stress-markers
#14
H Baniamerian, F Bahrehmand, A Vaisi-Raygani, Z Rahimi, T Pourmotabbed
Angiotensin II, one of the rennin-angiotensin system components, is important in the cardiovascular hemodynamic and plays an important role in the development of cardiovascular disease in systemic lupus erythematosus (SLE) patients. The angiotensin II, through interaction with angiotensin II type 1 receptor (AGTR1), promotes proliferation, inflammation and fibrosis. The single nucleotide polymorphism of the AGTR1 (dbSNP: rs5186) gene can be associated with development and progression of SLE disease. The aims of this study were to compare the frequency of AGTR1 rs5186 in SLE patients with healthy individuals and to evaluate possible association between AGTR1 A1166C gene polymorphism and serum level of lipids, neopterin and malondialdehyde in SLE patients from a population of West Iran...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28530038/hiv-treatment-and-care-services-for-adolescents-a-situational-analysis-of-218-facilities-in-23-sub-saharan-african-countries
#15
Daniella Mark, Alice Armstrong, Catarina Andrade, Martina Penazzato, Luann Hatane, Lina Taing, Toby Runciman, Jane Ferguson
INTRODUCTION: In 2013, an estimated 2.1 million adolescents (age 10-19 years) were living with HIV globally. The extent to which health facilities provide appropriate treatment and care was unknown. To support understanding of service availability in 2014, Paediatric-Adolescent Treatment Africa (PATA), a non-governmental organisation (NGO) supporting a network of health facilities across sub-Saharan Africa, undertook a facility-level situational analysis of adolescent HIV treatment and care services in 23 countries...
May 16, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28529992/minimally-invasive-surgery-for-gastric-cancer-in-usa-current-status-and-future-perspectives
#16
REVIEW
Ashley Russo, Vivian E Strong
The World Health Organization (WHO) has declared gastric carcinoma a global health concern and gastric cancer remains the third leading cause of cancer deaths worldwide. With the rising incidence of gastric cancer, a body of both retrospective and randomized data has emerged since the early 1990's evaluating the role of minimally invasive platforms in the management of gastric cancer. While Eastern studies have shown that the laparoscopic approach is safe and feasible for advanced gastric cancer in Eastern patients, it is not clear whether this is true for patients in the West...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28529969/antioxidant-and-synergistic-antidiabetic-activities-of-a-three-plant-preparation-used-in-cameroon-folk-medicine
#17
Bruno Moukette Moukette, Vicky Jocelyne Ama Moor, Cacral Prosper Biapa Nya, Pauline Nanfack, Francine Tankeu Nzufo, Marcel Azabji Kenfack, Jeanne Yonkeu Ngogang, Constant Anatole Pieme
Introduction. Several plant preparations like a mixture of aqueous extracts of Spilanthes africana; Portulaca oleracea; and Sida rhombifolia are currently utilized in Foumban (West Cameroon) to manage diabetes. The aim of this study is to investigate the antidiabetic property of the aqueous mixture of three plant extracts (1 : 1 : 1) on streptozotocin induced diabetes rats. Methods. Diabetes was induced to rats by intraperitoneal (i.p.) injection of streptozotocin (STZ) at a dose of 50 mg/kg b.w...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28529528/safety-evaluation-of-potential-toxic-metals-exposure-from-street-foods-consumed-in-mid-west-nigeria
#18
O C Ekhator, N A Udowelle, S Igbiri, R N Asomugha, Z N Igweze, O E Orisakwe
Objective. Street-vended foods offer numerous advantages to food security; nevertheless, the safety of street food should be considered. This study has investigated the level of potential toxic metal (Pb, Cd, Hg, Sb, Mn, and Al) contamination among street-vended foods in Benin City and Umunede. Methods. Twenty street food samples were purchased from vendors at bus stops. Metals were analyzed with atomic absorption spectrophotometry. The methods developed by the US EPA were employed to evaluate the potential health risk of toxic metals...
2017: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/28529301/the-establishment-of-wonsan-laborers-hospital-during-the-japanese-occupation-and-its-significance
#19
Il Yeong Jeong, Young-Jeon Shin
On July 3, 1928, the Wonsan Labor Union established the Wonsan Laborers' Hospital in Seoku-dong, Wonsan for the purpose of reducing medical consultation fees for its members. The union's efforts to improve the welfare of its members include the establishment of an educational institute, a consumers union, a barbershop, and a relief department. The Laborers' Hospital, which began with ten wards, was led by a team of two doctors, one midwife, two pharmacists, and four nurses. The two doctors were Cheol-sun Cha and Jeong-kwon Lee, and the midwife/nurse was Sun-jeong Kim...
December 2016: Ŭi Sahak
https://www.readbyqxmd.com/read/28528499/metal-transport-and-remobilisation-in-a-basin-affected-by-acid-mine-drainage-the-role-of-ochreous-amorphous-precipitates
#20
Sirio Consani, Cristina Carbone, Enrico Dinelli, Tonci Balić-Žunić, Laura Cutroneo, Marco Capello, Gabriella Salviulo, Gabriella Lucchetti
Metal-polluted mine waters represent a major threat to the quality of waters and sediments in a downstream basin. At the confluence between acidic mine waters and the unpolluted waters of the Gromolo Torrent (Liguria, North-West Italy), the massive formation of an ochreous amorphous precipitate takes place. This precipitate forms a soft blanket that covers the torrent bed and can be observed down to its mouth in the sea. The aim of this work is to evaluate the dispersion of metals in the Gromolo Torrent basin from the abandoned Cu-Fe sulphide mine of Libiola to the Ligurian Sea and to assess the metal remobilisation from the amorphous precipitates...
May 20, 2017: Environmental Science and Pollution Research International
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