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https://www.readbyqxmd.com/read/28808624/possibilities-for-arthroscopic-treatment-of-the-ageing-sternoclavicular-joint
#1
Martin Rathcke, Jørgen Tranum-Jensen, Michael Rindom Krogsgaard
AIM: To investigate if there are typical degenerative changes in the ageing sternoclavicular joint (SCJ), potentially accessible for arthroscopic intervention. METHODS: Both SCJs were obtained from 39 human cadavers (mean age: 79 years, range: 59-96, 13 F/26 M). Each frozen specimen was divided frontally with a band saw, so that both SCJs were opened in the same section through the center of the discs. After thawing of the specimens, the condition of the discs was evaluated by probing and visual inspection...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28802463/improving-long-term-driving-comfort-by-taking-breaks-how-break-activity-affects-effectiveness
#2
George M Sammonds, Neil J Mansfield, Mike Fray
During long duration journeys, drivers are encouraged to take regular breaks. The benefits of breaks have been documented for safety; breaks may also be beneficial for comfort. The activity undertaken during a break may influence its effectiveness. Volunteers completed 3 journeys on a driving simulator. Each 130 min journey included a 10 min break after the first hour. During the break volunteers either stayed seated, left the simulator and sat in an adjacent room, or took a walk on a treadmill. The results show a reduction in driver discomfort during the break for all 3 conditions, but the effectiveness of the break was dependent on activity undertaken...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28759298/fusional-amplitudes-developing-testing-standards
#3
Katherine J Fray
PURPOSE: The stability of binocular vision depends upon good fusional amplitudes, but the clinical assessment of fusional amplitudes varies around the world. The purpose of this study was to determine whether or not there is variation in the assessment of fusional amplitudes in normal subjects. The author looked at the testing distance, the order of testing, the role of examiner encouragement, and the subject's level of alertness. METHODS: In a prospective study using a modified crossover design, the author assessed fusional amplitudes in 99 subjects with normal eye exams...
July 31, 2017: Strabismus
https://www.readbyqxmd.com/read/28754649/stretching-single-fibrin-fibers-hampers-their-lysis
#4
Wei Li, Tomas Lucioni, Rongzhong Li, Keith Bonin, Samuel S Cho, Martin Guthold
Blood clots, whose main structural component is a mesh of microscopic fibrin fibers, experience mechanical strain from blood flow, clot retraction and interactions with platelets and other cells. We developed a transparent, striated and highly stretchable substrate made from fugitive glue (a styrenic block copolymer) to investigate how mechanical strain affects lysis of single, suspended fibrin fibers. In this suspended fiber assay, lysis manifested itself by fiber elongation, thickening (disassembly), fraying and collapse...
July 25, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28748894/collagenofibrotic-collagen-type-iii-glomerulopathy-in-association-with-diabetic-nephropathy
#5
Khaled O Alsaad, Burhan Edrees, Khawla A Rahim, Abdulkareem Alanazi, Muawia Ahmad, Noura Aloudah
Collagenofìbrotic (collagen type III) glomerulopathy (CG) is a rare nonimmune-mediated glomerular disease. It is characterized by massive deposition of organized collagen type III fibers, which is localized in the mesangial and subendothelial glomerular areas and associated with increased serum levels of procollagen type III peptide. Association with systemic diseases and malignancies is extremely rare. Herein, we present a case of a nine-year-old girl, known case of type I diabetes mellitus, who presented with fever, nephrotic range proteinuria, generalized edema, and hypertension...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28744871/genotyping-of-tenacibaculum-maritimum-isolates-from-farmed-atlantic-salmon-in-western-canada
#6
K Frisch, S B Småge, Ø J Brevik, H Duesund, A Nylund
Mouthrot infections (bacterial stomatitis) have a significant impact on the Atlantic salmon aquaculture industry in Western Canada due to economic losses and fish welfare. Bacteria isolated from lesions in the field have been identified as Tenacibaculum maritimum. Mouthrot is different to classical tenacibaculosis, which is most commonly associated with ulcerative lesions, frayed fins and tail rot. The marine fish pathogen T. maritimum is found worldwide; however, in Western Canada, the knowledge of the genetic profile of T...
July 26, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28726007/sharing-mutations-are-biobanks-still-required-in-the-post-crispr-cas9-era
#7
Janet Kenyon, Martin D Fray
Cryopreservation is seen as a key aspect of good colony management which supports the drive towards improvements in animal care and the implementation of the 3Rs. However, following the advent of gene editing technologies, the generation of new mouse models is quicker and cheaper than ever before. This has led some to question the future value of biobanks around the world. In the following commentary, we argue that the need to cryopreserve mouse strains and distribute them from well-funded repositories is as strong as it has ever been...
July 18, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28725861/pursuing-humanistic-medicine-in-a-technological-age
#8
Stephen Bertman
The humanistic practice of medicine requires that the practitioner have sufficient time and appropriate focus. Both elements, however, are under assault by the high-speed, distraction-filled environment within which primary care is delivered today. Despite or perhaps because of modern medicine's technological advances, the potentially healing bond between doctor and patient is being frayed and the quality of care consequently degraded.
June 2017: Journal of patient experience
https://www.readbyqxmd.com/read/28719980/distinguishing-epidermolysis-bullosa-acquisita-from-bullous-pemphigoid-without-direct-immunofluorescence
#9
Kerry M Gardner, Richard I Crawford
BACKGROUND: It has been postulated that periodic acid-Schiff staining of basement membrane can predict direct immunofluorescence patterns seen in epidermolysis bullosa acquisita and bullous pemphigoid. It has also been suggested that the type of inflammatory infiltrate or presence of fraying of basal keratinocytes may differentiate these two conditions. OBJECTIVE: In this study, we aimed to confirm these observations. METHODS: We reviewed 13 cases of direct immunofluorescence-confirmed epidermolysis bullosa acquisita and 19 cases of direct immunofluorescence-confirmed bullous pemphigoid, all with a subepidermal blister in the routinely processed specimen...
July 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28717992/melting-of-polymeric-dna-double-helix-at-elevated-temperature-a-molecular-dynamics-approach
#10
Sangeeta Kundu, Sanchita Mukherjee, Dhananjay Bhattacharyya
Genomic DNA of higher organisms exists as extremely long polymers, while in bacteria and other lower organisms it is circular with no terminal base pairs. Temperature-induced melting of the DNA double helix by localized strand separation has been unattainable by molecular dynamic simulations due to more rapid fraying of the terminal base pairs in oligomeric DNA. However, local-sequence-dependent unfolding of the DNA double helix is extremely important for understanding various biochemical phenomena, and can be addressed by simulating a model polymeric DNA duplex...
August 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28712861/a-novel-golgi-cox-staining-method-for-detecting-and-characterizing-roles-of-the-hepatic-stellate-cells-in-liver-injury
#11
Ma de Jesús Gómez Villalobos, Susana Vidrio, Ruth Giles López, Gabriel Flores Gómez, Victoria Chagoya de Sánchez
The aim of this study was to investigate the utility of the Golgi-Cox method to characterize the distribution and morphological changes of the hepatic stellate cells (HSCs) in CCl4 liver damaged rats. Six-week-old male Wistar rats were injected with CCl4 for ten weeks. The livers were processed with the Golgi-Cox method, reticuline, and Massońs Trichrome stains, and analyzed under light microscopy. Histological evaluation of livers was made through the METAVIR score. In normal livers, the HSCs show stellate form with abundant thin cytoplasmic processes, distributed into hepatic lobule, mainly in zone 1...
June 30, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28691236/response-to-vogelstein-how-the-2012-aap-task-force-on-circumcision-went-wrong
#12
Robert S Van Howe
Vogelstein cautions medical organizations against jumping into the fray of controversial issues, yet proffers the 2012 American Academy of Pediatrics' Task Force policy position on infant male circumcision as 'an appropriate use of position-statements.' Only a scratch below the surface of this policy statement uncovers the Task Force's failure to consider Vogelstein's many caveats. The Task Force supported the cultural practice by putting undeserved emphasis on questionable scientific data, while ignoring or underplaying the importance of valid contrary scientific data...
July 9, 2017: Bioethics
https://www.readbyqxmd.com/read/28664247/association-between-leg-bowing-and-serum-alkaline-phosphatase-level-regardless-of-the-presence-of-a-radiographic-growth-plate-abnormality-in-pediatric-patients-with-genu-varum
#13
Yuko Sakamoto, Muneaki Ishijima, Mayuko Kinoshita, Lizu Liu, Mitsuyoshi Suzuki, Sung-Gon Kim, Koichi Kamata, Akifumi Tokita, Haruka Kaneko, Toshiaki Shimizu, Kazuo Kaneko, Masahiko Nozawa
When children around 2 years of age show leg bowing and diseases are ruled out based on radiographic findings without conducting blood tests, they are classified as "physiologic" genu varum. Since whether or not physiologic genu varum is associated with bone metabolism is unclear, this study was conducted to clarify the association between genu varum and bone metabolism in children. Thirty-five pediatric patients with genu varm who visited our out-patient clinic were enrolled. While two of the 35 children had nutritional rickets, showing abnormalities on both blood test (ALP, ≥1000 IU/L; iPTH, >65 pg/mL and 25(OH)D, ≤20 ng/mL) and radiographs (such as cupping, fraying or splaying), five of 35 children showed abnormalities on blood tests but not radiographs...
June 29, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28636666/molecular-and-microbiological-report-of-a-hospital-outbreak-of-ndm-1-carrying-enterobacteriaceae-in-mexico
#14
Paola Bocanegra-Ibarias, Elvira Garza-González, Rayo Morfín-Otero, Humberto Barrios, Licet Villarreal-Treviño, Eduardo Rodríguez-Noriega, Ulises Garza-Ramos, Santiago Petersen-Morfin, Jesus Silva-Sanchez
OBJECTIVES: To characterize the microbiological, molecular and epidemiological data of an outbreak of carbapenem-resistant Enterobacteriaceae (CRE) in a tertiary-care hospital in Mexico. METHODS: From September 2014 to July 2015, all CRE clinical isolates recovered during an outbreak in the Hospital Civil "Fray Antonio Alcalde" in Jalisco, Mexico were screened for antimicrobial susceptibility, carbapenemase production, carbapenemase-encoding genes, and plasmid profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28599753/communication-between-middle-ses-black-women-and-healthcare-providers-about-hiv-testing
#15
Niasha A Fray, Kia Lilly Caldwell
PURPOSE: This article explores the impact of patient and healthcare provider communication (PPC) on the HIV testing behaviors of middle socioeconomic status (SES) Black women in North Carolina. We explore how PPC about STIs and HIV (or the lack thereof) affects the provision of STI/HIV testing by either confirming the need for middle SES Black women to test routinely or potentially deterring women from feeling they need to be tested. METHODS/FINDINGS: After conducting 15 qualitative interviews with middle SES Black women between 25 and 45 years of age, we uncovered the role of patient self-advocacy in promoting HIV testing among middle SES Black women when they communicate with their healthcare providers...
July 2017: Journal of the National Medical Association
https://www.readbyqxmd.com/read/28590593/the-proteasome-enters-the-meiotic-prophase-fray
#16
REVIEW
Aleksandar Vujin, Monique Zetka
The segregation of homologous chromosomes in meiosis depends on their ability to locate one another in the nucleus and establish a physical association through crossing over. A tightly regulated number of crossovers (COs) emerges following repair of induced DNA double-strand breaks by homologous recombination (HR), but the process of how HR intermediates transition into COs is still poorly understood. Two recent studies by Ahuja et al. and Rao et al. have revealed a role for chromosomally localized proteasomes in choreographing both homologous chromosome pairing and the evolution of HR intermediates into segregation-competent COs...
June 7, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28554975/mechanical-and-electrostatic-experiments-with-dust-particles-collected-in-the-inner-coma-of-comet-67p-by-cosima-onboard-rosetta
#17
Martin Hilchenbach, Henning Fischer, Yves Langevin, Sihane Merouane, John Paquette, Jouni Rynö, Oliver Stenzel, Christelle Briois, Jochen Kissel, Andreas Koch, Rita Schulz, Johan Silen, Nicolas Altobelli, Donia Baklouti, Anais Bardyn, Herve Cottin, Cecile Engrand, Nicolas Fray, Gerhard Haerendel, Hartmut Henkel, Herwig Höfner, Klaus Hornung, Harry Lehto, Eva Maria Mellado, Paola Modica, Lena Le Roy, Sandra Siljeström, Wolfgang Steiger, Laurent Thirkell, Roger Thomas, Klaus Torkar, Kurt Varmuza, Boris Zaprudin
The in situ cometary dust particle instrument COSIMA (COmetary Secondary Ion Mass Analyser) onboard ESA's Rosetta mission has collected about 31 000 dust particles in the inner coma of comet 67P/Churyumov-Gerasimenko since August 2014. The particles are identified by optical microscope imaging and analysed by time-of-flight secondary ion mass spectrometry. After dust particle collection by low speed impact on metal targets, the collected particle morphology points towards four families of cometary dust particles...
July 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28551479/dna-and-protein-binding-double-strand-dna-cleavage-and-cytotoxicity-of-mixed-ligand-copper-ii-complexes-of-the-antibacterial-drug-nalidixic-acid
#18
Rangasamy Loganathan, Mani Ganeshpandian, Nattamai S P Bhuvanesh, Mallayan Palaniandavar, Amsaveni Muruganantham, Swapan K Ghosh, Anvarbatcha Riyasdeen, Mohammad Abdulkader Akbarsha
The water soluble mixed ligand complexes [Cu(nal)(diimine)(H2O)](ClO4) 1-4, where H(nal) is nalidixic acid and diimine is 2,2'-bipyridine (1), 1,10-phenanthroline (2), 5,6-dimethyl-1,10-phenanthroline (3), and 3,4,7,8-tetramethyl-1,10-phenanthroline (4), have been isolated. The coordination geometry around Cu(II) in 1 and that in the Density Functional Theory optimized structures of 1-4 has been assessed as square pyramidal. The trend in DNA binding constants (Kb) determined using absorption spectral titration (Kb: 1, 0...
September 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28545257/the-reactive-sulfur-species-concept-15-years-on
#19
REVIEW
Gregory I Giles, Muhammad Jawad Nasim, Wesam Ali, Claus Jacob
Fifteen years ago, in 2001, the concept of "Reactive Sulfur Species" or RSS was advocated as a working hypothesis. Since then various organic as well as inorganic RSS have attracted considerable interest and stimulated many new and often unexpected avenues in research and product development. During this time, it has become apparent that molecules with sulfur-containing functional groups are not just the passive "victims" of oxidative stress or simple conveyors of signals in cells, but can also be stressors in their own right, with pivotal roles in cellular function and homeostasis...
May 23, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28532839/dry-ice-is-a-reliable-substrate-for-the-distribution-of-frozen-mouse-spermatozoa-a-multi-centric-study
#20
Marcello Raspa, Mo Guan, Renata Paoletti, Lluis Montoliu, Abdel Ayadi, Susan Marschall, Martin Fray, Ferdinando Scavizzi
Disseminating mouse stocks as frozen materials offers both ethical and logistical advantages over live animal shipment, minimizing the welfare issues and avoiding some of the complex custom regulations that are associated with live animal transportation. Embryo freezing in liquid nitrogen (LN2) at -196 °C has traditionally been the method of choice for archiving mouse lines. However, spermatozoa freezing is emerging as a more convenient alternative due to the application of innovative cryopreservation and recovery protocols...
July 1, 2017: Theriogenology
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