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Jeremy T Goldbach, Ethan H Mereish, Claire Burgess
BACKGROUND: Prescription drug, e-cigarette, smokeless tobacco, and synthetic marijuana use has risen dramatically in the United States over the past decade. OBJECTIVES: This paper investigates the use of risky substances among adolescents, and examines disparities between sexual minority (i.e., mostly heterosexual and lesbian, gay, bisexual; LGB) and heterosexual adolescents in use of novel and emerging substances. Given the public health risk and the imminence of these substances in the media, emerging drug use was examined in a county wide sample of adolescents in a Southern state...
October 19, 2016: Substance Use & Misuse
Natalie C Sadler, Hans C Bernstein, Matthew R Melnicki, Moiz A Charania, Eric A Hill, Lindsey N Anderson, Matthew E Monroe, Richard D Smith, Alexander S Beliaev, Aaron T Wright
: Photobiologically synthesized hydrogen (H2) gas is carbon-neutral to produce and clean to combust, making it an ideal biofuel. Cyanothece sp. ATCC 51142 is a cyanobacterium capable of performing simultaneous oxygenic photosynthesis and H2 production, a highly perplexing phenomenon because H2 evolving enzymes are O2-sensitive. We employed a systems-level in vivo chemoproteomic profiling approach to explore the cellular dynamics of protein thiol redox, and how thiol redox mediates the function of the dinitrogenase NifHDK, an enzyme complex capable of aerobic hydrogenase activity...
October 14, 2016: Applied and Environmental Microbiology
E Stelloo, A M L Jansen, E M Osse, R A Nout, C L Creutzberg, D Ruano, D N Church, H Morreau, V T H B M Smit, T van Wezel, T Bosse
BACKGROUND: Mismatch repair (MMR)-deficiency analysis is increasingly recommended for all endometrial cancers, as it identifies Lynch syndrome-patients, and is emerging as a prognostic classifier to guide adjuvant treatment. The aim of this study was to define the optimal approach for MMR-deficiency testing and to clarify discrepancies between microsatellite instability (MSI) analysis and immunohistochemical (IHC) analysis of MMR protein expression. PATIENTS AND METHODS: 696 endometrial cancers were analyzed for MSI (pentaplex panel) and MMR protein expression (IHC)...
October 13, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
Audrey N Chang, Kristine E Kamm, James T Stull
Maintenance of contractile performance of the heart is achieved in part by the constitutive 40% phosphorylation of myosin regulatory light chain (RLC) in sarcomeres. The importance of this extent of RLC phosphorylation for optimal cardiac performance becomes apparent when various mouse models and resultant phenotypes are compared. The absence or attenuation of RLC phosphorylation results in poor performance leading to heart failure, whereas increased RLC phosphorylation is associated with cardiac protection from stresses...
October 11, 2016: Journal of Molecular and Cellular Cardiology
H Ogino, Y Fujimichi, M Sasaki, N Hamada, T Iwasaki, K Yoshida, T Hattori
The attribution of stochastic effects to exposure to ionizing radiation has been qualitatively discussed by introducing two distinct concepts of provability and probability. This study aims to develop a method of quantitatively assessing the provability of radiation-related cancers. To this end, the 'minimum provable dose' (MPD) was developed and applied to actual cancer mortality in Japan. The background lifetime risk of cancer mortality was calculated for the esophagus, stomach, colon, liver, lungs, skin, breasts, ovaries, bladder, and bone marrow as well as the age-specific risk coefficients reproducing those given in the 2007 Recommendations of the International Commission on Radiological Protection (ICRP)...
October 14, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
V V Novikov, N A Zhemoedov, N V Mitroshenkov, A V Matovnikov
We experimentally study the heat capacity and thermal expansion of thulium boride (TmB50) at temperatures of 2-300 K. The wide temperature range (2-180 K) of boride negative expansion was revealed. We found the anomalies in C(T) heat capacity temperature dependence, attributed to the Schottky contribution (i.e. the influence of the crystal electric field: CEF), as well as the magnetic phase transition. CEF-splitting of the f-levels of the Tm(3+) ion was described by the Schottky function of heat capacity with a quasi-quartet in the ground state...
October 13, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
Samantha L Schoell, Andrea N Doud, Ashley A Weaver, Jennifer W Talton, Ryan T Barnard, James E Winslow, Joel D Stitzel
BACKGROUND: Occult injuries are not easily detected and can be potentially life-threatening. The purpose of this study was to quantify the perceived occultness of the most frequent motor vehicle crash injuries according to emergency medical services (EMS) professionals. STUDY DESIGN: An electronic survey was distributed to 1,125 EMS professionals who were asked to quantify the likelihood that first responders would miss symptoms related to a particular injury on a 5-point Likert scale...
October 7, 2016: Accident; Analysis and Prevention
J O Sotunsa, M Vidler, D O Akeju, M O Osiberu, E O Orenuga, O T Oladapo, R Qureshi, D Sawchuck, O O Adetoro, P von Dadelszen, O A Dada
BACKGROUND: Pre-eclampsia is a leading cause of maternal and fetal morbidity and mortality worldwide. Early detection and treatment have been instrumental in reducing case fatality in high-income countries. To achieve this in a low-income country, like Nigeria, community health workers who man primary health centres must have adequate knowledge and skills to identify and provide emergency care for women with pre-eclampsia. This study aimed to determine community health workers' knowledge and practice in the identification and treatment of pre-eclampsia, as they are essential providers of maternal care services in Nigeria...
September 30, 2016: Reproductive Health
Marie-Noëlle Bélanger-Lévesque, Marc Dumas, Simon Blouin, Jean-Charles Pasquier
BACKGROUND: While spirituality is well described in end-of-life care literature, research on its place in the delivery room remains largely limited to mother-oriented qualitative studies focusing on life-threatening situations (e.g., high-risk pregnancies). Our aim was to compare mothers' and fathers' spirituality during childbirth. METHODS: A mixed methods questionnaire was developed from our childbirth-related spirituality categorization and distributed to all parents of newborns, 12-24 h postpartum, over 45 consecutive days...
September 30, 2016: BMC Pregnancy and Childbirth
R Hofmann-Lehmann, N Wagmann, M L Meli, B Riond, M Novacco, D Joekel, F Gentilini, F Marsilio, M G Pennisi, A Lloret, T Carrapiço, F S Boretti
'Candidatus Neoehrlichia mikurensis' is an emerging tick-borne zoonotic agent that primarily affects immunocompromised human patients. Dogs and foxes are frequently exposed to ticks, and both species are in close proximity to humans. This is the first study to systematically investigate the occurrence of 'Candidatus Neoehrlichia mikurensis' in Canidae in Europa. We analyzed 1'739 blood samples from dogs in Switzerland, Italy, Spain and Portugal and 162 blood samples from free-ranging red foxes (Vulpes vulpes) in Switzerland...
October 2016: Schweizer Archiv Für Tierheilkunde
Mir Amaan Ali, Kate T Carroll, Robert C Rennert, Thomas Hamelin, Leon Chang, Brian P Lemkuil, Mayur Sharma, Jill S Barnholtz-Sloan, Charlotte Myers, Gene H Barnett, Kris Smith, Alireza M Mohammadi, Andrew E Sloan, Clark C Chen
OBJECTIVE Therapeutic options for brain metastases (BMs) that recur after stereotactic radiosurgery (SRS) remain limited. METHODS The authors provide the collective experience of 4 institutions where treatment of BMs that recurred after SRS was performed with stereotactic laser ablation (SLA). RESULTS Twenty-six BMs (in 23 patients) that recurred after SRS were treated with SLA (2 patients each underwent 2 SLAs for separate lesions, and a third underwent 2 serial SLAs for discrete BMs). Histological findings in the BMs treated included the following: breast (n = 6); lung (n = 6); melanoma (n = 5); colon (n = 2); ovarian (n = 1); bladder (n = 1); esophageal (n = 1); and sarcoma (n = 1)...
October 2016: Neurosurgical Focus
E López, T Ripolles, M J Martinez, P Bartumeus, J Blay, A López
AIM: The aim was to prospectively evaluate the positive predictive value of ultrasound in the diagnosis of ischemic colitis, with colonoscopy as the reference standard. METHODS: During a 2-year period we included consecutive patients over 50 years of age with sudden abdominal pain and/or rectal bleeding who underwent abdominal sonography in an emergency setting with a thickened segment of colon with a length of more than 10 cm. This clinical-sonographic triad was considered diagnostic for ischemic colitis...
November 2015: Ultrasound Int Open
R Barazzoni, N E P Deutz, G Biolo, S Bischoff, Y Boirie, T Cederholm, C Cuerda, N Delzenne, M Leon Sanz, O Ljungqvist, M Muscaritoli, C Pichard, J C Preiser, P Sbraccia, P Singer, L Tappy, B Thorens, A Van Gossum, R Vettor, P C Calder
Growing evidence underscores the important role of glycemic control in health and recovery from illness. Carbohydrate ingestion in the diet or administration in nutritional support is mandatory, but carbohydrate intake can adversely affect major body organs and tissues if resulting plasma glucose becomes too high, too low, or highly variable. Plasma glucose control is especially important for patients with conditions such as diabetes or metabolic stress resulting from critical illness or surgery. These patients are particularly in need of glycemic management to help lessen glycemic variability and its negative health consequences when nutritional support is administered...
September 19, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
A Feeney, T Barry, D Hayden, L Higgins, E Kavanagh, P MacMahon, M O'Reilly, S P Teeling, P J Kelly, S Murphy
Ischaemic stroke clinical outcomes are improved by earlier treatment with intravenous thrombolysis. An existing pathway at the Mater University Hospital for assessment of suspected acute stroke in the Emergency Department was updated, aiming to shorten door-to-needle time. This study examines the final clinical diagnosis of Dublin Fire Brigade Ambulance Paramedic identified Face-Arm-Speech-Test (FAST) positive patients presenting to the Emergency Department over a 7 month period. A retrospective analysis was carried out of 177 consecutive FAST positive patients presenting between March and November 2014...
2016: Irish Medical Journal
Lisa Laurin-Barantke, Jürgen Hoyer, Lydia Fehm, Susanne Knappe
AIM: To examine the associations of test anxiety (TA) in written vs oral exam situations with social anxiety (SA). METHODS: A convenience sample of 204 students was recruited at the Technische Universität Dresden (TU Dresden, Germany) and contacted via e-mail asking to complete a cross-sectional online survey based on established questionnaires. The study protocol was approved by the ethics committee of the TU Dresden. Full data of n = 96 students were available for dependent t-tests and correlation analyses on the associations of SA and TA respectively with trigger events, cognitions, safety behaviors, physical symptoms and depersonalization...
September 22, 2016: World Journal of Psychiatry
N H Lindkaer Jensen, T M Cook, F E Kelly
The Fourth National Audit Project (NAP4) recommended airway training for trainee and trained anaesthetists. As the skills required for management of airway emergencies differ from routine skills and these events are rare, practical training is likely to require training workshops. In 2013, we surveyed all UK National Health Service hospitals to examine the current practices regarding airway training workshops. We received responses from 206 hospitals (62%) covering all regions. Regarding airway workshops, 16% provide none and 51% only for trainees...
November 2016: Anaesthesia
N Zhelev, M Reichl, T S Abhilash, E N Smith, K X Nguyen, E J Mueller, J M Parpia
In bulk superfluid (3)He at zero magnetic field, two phases emerge with the B-phase stable everywhere except at high pressures and temperatures, where the A-phase is favoured. Aerogels with nanostructure smaller than the superfluid coherence length are the only means to introduce disorder into the superfluid. Here we use a torsion pendulum to study (3)He confined in an extremely anisotropic, nematically ordered aerogel consisting of ∼10 nm-thick alumina strands, spaced by ∼100 nm, and aligned parallel to the pendulum axis...
2016: Nature Communications
Amber Delmas, Angelos Oikonomopoulos, Precious N Lacey, Mohammad Fallahi, Daniel W Hommes, Mark S Sundrud
Advances in flow and mass cytometry are enabling ultra-high resolution immune profiling in mice and humans on an unprecedented scale. However, the resulting high-content datasets challenge traditional views of cytometry data, which are both limited in scope and biased by pre-existing hypotheses. Computational solutions are now emerging (e.g., Citrus, AutoGate, SPADE) that automate cell gating or enable visualization of relative subset abundance within healthy versus diseased mice or humans. Yet these tools require significant computational fluency and fail to show quantitative relationships between discrete immune phenotypes and continuous disease variables...
2016: PloS One
N V Maluchenko, H W Chang, M T Kozinova, M E Valieva, N S Gerasimova, A V Kitashov, M P Kirpichnikov, P G Georgiev, V M Studitsky
Conventional antitumor therapy is often complicated by the emergence of the so-called cancer stem cells (CSCs), which are characterized by low metabolic rates and high resistance to almost all existing therapies. Many problems of clinical oncology and a poor efficacy of current treatments in particular are ascribed to CSCs. Therefore, it is important to develop new compounds capable of eliminating both rapidly proliferating tumor cells and standard treatment-resistant CSCs. Curaxins have been demonstrated to manifest various types of antitumor activity...
July 2016: Molekuliarnaia Biologiia
Paul T Harrell, Syeda Mahrukh H Naqvi, Andrew D Plunk, Ming Ji, Silvia S Martins
BACKGROUND: Despite significant declines in youth cigarette smoking, overall tobacco usage remains over 20% as non-cigarette tobacco product usage is increasingly common and polytobacco use (using 1+ tobacco product) remains steady. OBJECTIVES: The present study was designed to identify patterns of youth tobacco use and examine associations with sociodemographic characteristics and tobacco dependence. METHODS: The current analysis uses Latent Class Analysis (LCA) to examine the 6,958 tobacco users (n = 2,738 female) in the National Youth Tobacco Survey (2012 and 2013)...
September 26, 2016: American Journal of Drug and Alcohol Abuse
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