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https://www.readbyqxmd.com/read/29455373/diagnostic-value-of-ultrasonography-for-the-detection-of-disc-displacements-in-the-temporomandibular-joint-a-systematic-review-and-meta-analysis
#1
Naichuan Su, Arjen J van Wijk, Corine M Visscher, Frank Lobbezoo, Geert J M G van der Heijden
OBJECTIVES: The aim was to assess the added diagnostic value of ultrasonography (US) for establishing the presence or absence of disc displacements (DDs) in temporomandibular joints (TMJs). MATERIALS AND METHODS: Pubmed and EMBASE were searched electronically to identify diagnostic accuracy studies that assessed the diagnostic value of US for the diagnosis of DD, using Magnetic resonance imaging (MRI) as the reference standard. Meta-analyses were performed with Metadisc 1...
February 17, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29455118/multivariate-dynamic-tobit-models-with-lagged-observed-dependent-variables-an-effectiveness-analysis-of-highway-safety-laws
#2
Chunjiao Dong, Kun Xie, Jin Zeng, Xia Li
Highway safety laws aim to influence driver behaviors so as to reduce the frequency and severity of crashes, and their outcomes. For one specific highway safety law, it would have different effects on the crashes across severities. Understanding such effects can help policy makers upgrade current laws and hence improve traffic safety. To investigate the effects of highway safety laws on crashes across severities, multivariate models are needed to account for the interdependency issues in crash counts across severities...
February 15, 2018: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29453076/development-of-novel-synthesized-phthalazinone-based-parp-1-inhibitors-with-apoptosis-inducing-mechanism-in-lung-cancer
#3
Hadia Almahli, Elie Hadchity, Maiy Y Jaballah, Racha Daher, Hazem A Ghabbour, Maha M Kabil, Nasser S Al-Shakliah, Wagdy M Eldehna
Herein we report the synthesis of two series of 4-phenylphthalazin-1-ones 11a-i and 4- benzylphthalazin-1-ones 16a-h as anti-lung adenocarcinoma agents with potential inhibitory activity against PARP-1. All the newly synthesized phthalazinones were evaluated for their anti-proliferative activity against A549 lung carcinoma cell line. Phthalazinones 11c-i and 16b, c showed significant cytotoxic activity against A549 cells at different concentrations (0.1, 1 and 10 μM) for two time intervals (24 h and 48 h)...
February 7, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29452747/accuracy-of-clinician-practice-compared-with-three-head-injury-decision-rules-in-children-a-prospective-cohort-study
#4
Franz E Babl, Ed Oakley, Stuart R Dalziel, Meredith L Borland, Natalie Phillips, Amit Kochar, Sarah Dalton, John A Cheek, Yuri Gilhotra, Jeremy Furyk, Jocelyn Neutze, Susan Donath, Stephen Hearps, Charlotte Molesworth, Louise Crowe, Silvia Bressan, Mark D Lyttle
STUDY OBJECTIVE: Three clinical decision rules for head injuries in children (Pediatric Emergency Care Applied Research Network [PECARN], Canadian Assessment of Tomography for Childhood Head Injury [CATCH], and Children's Head Injury Algorithm for the Prediction of Important Clinical Events [CHALICE]) have been shown to have high performance accuracy. The utility of any of these in a particular setting depends on preexisting clinician accuracy. We therefore assess the accuracy of clinician practice in detecting clinically important traumatic brain injury...
February 13, 2018: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29451802/nanoscale-mapping-and-spectroscopy-of-non-radiative-hyperbolic-modes-in-hexagonal-boron-nitride-nanostructures
#5
Lisa V Brown, Marcelo Davanco, Zhiyuan Sun, Andrey V Kretinin, Yiguo Chen, Joseph Robert Matson, Igor Vurgaftman, Nicholas Sharac, Alexander Giles, Michael M Fogler, Takashi Taniguchi, Kenji Watanabe, Kostya S Novoselov, Stefan A Maier, Andrea Centrone, Joshua D Caldwell
The inherent crystal anisotropy of hexagonal boron nitride (hBN) provides the ability to support hyperbolic phonon polaritons, i.e. polaritons that can propagate with very large wavevectors within the material volume, thereby enabling optical confinement to exceedingly small dimensions. Indeed, previous research has shown that nanometer-scale truncated nanocone hBN cavities, with deep subdiffractional dimensions, support three-dimensionally confined optical modes in the mid-infrared. Due to optical selection rules only a few of the many theoretically predicted modes have been observed experimentally via far-field reflection and scattering-type scanning near-field optical microscopy (s-SNOM)...
February 16, 2018: Nano Letters
https://www.readbyqxmd.com/read/29450817/prediction-of-neonatal-hyperbilirubinemia-using-1st-day-serum-bilirubin-levels
#6
S M Spoorthi, Siddappa F Dandinavar, Vinod H Ratageri, Prakash K Wari
The study was conducted on Full term neonates with birth weight > 2.5 kg born in KIMS, Hubballi with an objective to determine the first day Total Serum Bilirubin (TSB) value so as to predict subsequent development of significant hyperbilirubinemia in term neonates. All enrolled neonates were sampled for TSB and blood group on Day 1 at 20 ± 4 h and then followed up clinically by Kramer's rule and when the clinical jaundice by Kramer's rule was >10 mg/dl, TSB levels were repeated. A total of 180 newborns were enrolled for the study and 165 babies completed the study...
February 15, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29450510/utility-of-a-clinical-prediction-rule-to-exclude-pulmonary-embolism-among-low-risk-emergency-department-patients-reason-to-perc-up
#7
Jeffrey A Kline
No abstract text is available yet for this article.
February 13, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29449279/mri-with-dwi-for-the-detection-of-posttreatment-head-and-neck-squamous-cell-carcinoma-why-morphologic-mri-criteria-matter
#8
A Ailianou, P Mundada, T De Perrot, M Pusztaszieri, P-A Poletti, M Becker
BACKGROUND AND PURPOSE: Although diffusion-weighted imaging combined with morphologic MRI (DWIMRI) is used to detect posttreatment recurrent and second primary head and neck squamous cell carcinoma, the diagnostic criteria used so far have not been clarified. We hypothesized that precise MRI criteria based on signal intensity patterns on T2 and contrast-enhanced T1 complement DWI and therefore improve the diagnostic performance of DWIMRI. MATERIALS AND METHODS: We analyzed 1...
February 15, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29448921/evaluation-of-risk-factors-for-perforated-peptic-ulcer
#9
Kazuki Yamamoto, Osamu Takahashi, Hiroko Arioka, Daiki Kobayashi
BACKGROUND: The aim of this study was to evaluate the prediction factors for perforated peptic ulcer (PPU). METHODS: At St. Luke's International Hospital in Tokyo, Japan, a case control study was performed between August 2004 and March 2016. All patients diagnosed with PPU were included. As control subjects, patients with age, sex and date of CT scan corresponding to those of the PPU subjects were included in the study at a proportion of 2 controls for every PPU subject...
February 15, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29447696/strain-tracking-reveals-the-determinants-of-bacterial-engraftment-in-the-human-gut-following-fecal-microbiota-transplantation
#10
Christopher S Smillie, Jenny Sauk, Dirk Gevers, Jonathan Friedman, Jaeyun Sung, Ilan Youngster, Elizabeth L Hohmann, Christopher Staley, Alexander Khoruts, Michael J Sadowsky, Jessica R Allegretti, Mark B Smith, Ramnik J Xavier, Eric J Alm
Fecal microbiota transplantation (FMT) from healthy donor to patient is a treatment for microbiome-associated diseases. Although the success of FMT requires donor bacteria to engraft in the patient's gut, the forces governing engraftment in humans are unknown. Here we use an ongoing clinical experiment, the treatment of recurrent Clostridium difficile infection, to uncover the rules of engraftment in humans. We built a statistical model that predicts which bacterial species will engraft in a given host, and developed Strain Finder, a method to infer strain genotypes and track them over time...
February 14, 2018: Cell Host & Microbe
https://www.readbyqxmd.com/read/29447297/development-of-a-decision-aid-for-cardiopulmonary-resuscitation-and-invasive-mechanical-ventilation-in-the-intensive-care-unit-employing-user-centered-design-and-a-wiki-platform-for-rapid-prototyping
#11
Ariane Plaisance, Holly O Witteman, Annie LeBlanc, Jennifer Kryworuchko, Daren Keith Heyland, Mark H Ebell, Louisa Blair, Diane Tapp, Audrey Dupuis, Carole-Anne Lavoie-Bérard, Carrie Anna McGinn, France Légaré, Patrick Michel Archambault
BACKGROUND: Upon admission to an intensive care unit (ICU), all patients should discuss their goals of care and express their wishes concerning life-sustaining interventions (e.g., cardiopulmonary resuscitation (CPR)). Without such discussions, interventions that prolong life at the cost of decreasing its quality may be used without appropriate guidance from patients. OBJECTIVES: To adapt an existing decision aid about CPR to create a wiki-based decision aid individually adapted to each patient's risk factors; and to document the use of a wiki platform for this purpose...
2018: PloS One
https://www.readbyqxmd.com/read/29446860/development-of-a-clinical-prediction-rule-for-tuberculous-meningitis-in-adults-in-lima-peru
#12
Lely Solari, Alonso Soto, Patrick van der Stuyft
OBJECTIVES: Diagnosis of Tuberculous Meningitis (TM) is a challenge in countries with a high burden of the disease and constrained resources and Clinical Prediction Rules (CPRs) could be of assistance. We aimed at developing a CPR for diagnosis of TM in a Latin American setting with high tuberculosis incidence and a concentrated HIV epidemic. METHODS: We enrolled adult patients with clinical suspicion of TM attending two hospitals in Lima, Peru. We obtained information on potential anamnestic, clinical and laboratory predictive findings that are easy to collect and promptly available...
February 15, 2018: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29446459/the-challenge-of-converting-gram-positive-only-compounds-into-broad-spectrum-antibiotics
#13
REVIEW
Michelle F Richter, Paul J Hergenrother
Multidrug resistant Gram-negative bacterial infections are on the rise, and there is a lack of new classes of drugs to treat these pathogens. This drug shortage is largely due to the challenge of finding antibiotics that can permeate and persist inside Gram-negative species. Efforts to understand the molecular properties that enable certain compounds to accumulate in Gram-negative bacteria based on retrospective studies of known antibiotics have not been generally actionable in the development of new antibiotics...
February 15, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29446106/impact-of-controlled-attenuation-parameter-on-detecting-fibrosis-using-liver-stiffness-measurement
#14
T Karlas, D Petroff, M Sasso, J-G Fan, Y-Q Mi, V de Lédinghen, M Kumar, M Lupsor-Platon, K-H Han, A C Cardoso, G Ferraioli, W-K Chan, V W-S Wong, R P Myers, K Chayama, M Friedrich-Rust, M Beaugrand, F Shen, J-B Hiriart, S K Sarin, R Badea, H W Lee, P Marcellin, C Filice, S Mahadeva, G L-H Wong, P Crotty, K Masaki, J Bojunga, P Bedossa, V Keim, J Wiegand
BACKGROUND: Liver fibrosis is often accompanied by steatosis, particularly in patients with non-alcoholic fatty liver disease (NAFLD), and its non-invasive characterisation is of utmost importance. Vibration-controlled transient elastography is the non-invasive method of choice; however, recent research suggests that steatosis may influence its diagnostic performance. Controlled Attenuation Parameter (CAP) added to transient elastography enables simultaneous assessment of steatosis and fibrosis...
February 15, 2018: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29445333/sleep-dependent-memory-consolidation-and-incremental-sentence-comprehension-computational-dependencies-during-language-learning-as-revealed-by-neuronal-oscillations
#15
Zachariah R Cross, Mark J Kohler, Matthias Schlesewsky, M G Gaskell, Ina Bornkessel-Schlesewsky
We hypothesize a beneficial influence of sleep on the consolidation of the combinatorial mechanisms underlying incremental sentence comprehension. These predictions are grounded in recent work examining the effect of sleep on the consolidation of linguistic information, which demonstrate that sleep-dependent neurophysiological activity consolidates the meaning of novel words and simple grammatical rules. However, the sleep-dependent consolidation of sentence-level combinatorics has not been studied to date...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29445316/evaluating-the-energetic-driving-force-for-cocrystal-formation
#16
Christopher R Taylor, Graeme M Day
We present a periodic density functional theory study of the stability of 350 organic cocrystals relative to their pure single-component structures, the largest study of cocrystals yet performed with high-level computational methods. Our calculations demonstrate that cocrystals are on average 8 kJ mol -1 more stable than their constituent single-component structures and are very rarely (<5% of cases) less stable; cocrystallization is almost always a thermodynamically favorable process. We consider the variation in stability between different categories of systems-hydrogen-bonded, halogen-bonded, and weakly bound cocrystals-finding that, contrary to chemical intuition, the presence of hydrogen or halogen bond interactions is not necessarily a good predictor of stability...
February 7, 2018: Crystal Growth & Design
https://www.readbyqxmd.com/read/29444553/evaluation-of-biomarkers-for-treatment-selection-using-individual-participant-data-from-multiple-clinical-trials
#17
Chaeryon Kang, Holly Janes, Parvin Tajik, Henk Groen, Ben Mol, Corine Koopmans, Kim Broekhuijsen, Eva Zwertbroek, Maria van Pampus, Maureen Franssen
Biomarkers that predict treatment effects may be used to guide treatment decisions, thus improving patient outcomes. A meta-analysis of individual participant data (IPD) is potentially more powerful than a single-study data analysis in evaluating markers for treatment selection. Our study was motivated by the IPD that were collected from 2 randomized controlled trials of hypertension and preeclampsia among pregnant women to evaluate the effect of labor induction over expectant management of the pregnancy in preventing progression to severe maternal disease...
February 14, 2018: Statistics in Medicine
https://www.readbyqxmd.com/read/29442691/insulator-to-semiconductor-to-conductor-phase-like-transition-of-dna-chains
#18
C A Plazas, K M Fonseca-Romero, R R Rey-González
Using a tight-binding model, we study the transport of charge carriers through DNA molecular wires. In double-stranded DNA chains, according to Chargaff's rules, only Adenine-Thymine (AT) and Cytosine-Guanine (CG) pairs are allowed. In our model, a decimation procedure allows us to represent each pair of bases by a single site with one localized electronic state. We consider chains of different lengths with only AT (CG) sites, and ordered and disordered chains with both types of sites. Disordered chains may include short range correlation...
July 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442316/odd-paired-the-drosophila-zic-gene
#19
Deborah A Hursh, Brian G Stultz
Zinc finger in the cerebellum (Zic) proteins are a family of transcription factors with multiple roles during development, particularly in neural tissues. The founding member of the Zic family is the Drosophila odd-paired (opa) gene. The Opa protein has a DNA binding domain containing five Cys2His2-type zinc fingers and has been shown to act as a sequence-specific DNA binding protein. Opa has significant homology to mammalian Zic1, Zic2, and Zic3 within the zinc finger domain and in two other conserved regions outside that domain...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29440734/dynamics-of-starvation-and-recovery-predict-extinction-risk-and-both-damuth-s-law-and-cope-s-rule
#20
Justin D Yeakel, Christopher P Kempes, Sidney Redner
The eco-evolutionary dynamics of species are fundamentally linked to the energetic constraints of their constituent individuals. Of particular importance is the interplay between reproduction and the dynamics of starvation and recovery. To elucidate this interplay, here we introduce a nutritional state-structured model that incorporates two classes of consumers: nutritionally replete, reproducing consumers, and undernourished, nonreproducing consumers. We obtain strong constraints on starvation and recovery rates by deriving allometric scaling relationships and find that population dynamics are typically driven to a steady state...
February 13, 2018: Nature Communications
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