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https://www.readbyqxmd.com/read/28350954/integrating-drug-s-mode-of-action-into-quantitative-structure-activity-relationships-for-improved-prediction-of-drug-induced-liver-injury
#1
Leihong Wu, Zhichao Liu, Scott S Auerbach, Ruili Huang, Minjun Chen, Kristin McEuen, Joshua Zhihua Xu, Hong Fang, Weida Tong
Drug-induced liver injury (DILI) is complex in mechanism. Different drugs could undergo different mechanisms but result in the same DILI type while the same drug could lead to different DILI types via different mechanisms. Therefore, predicting a drug's potential for DILI should take its underlying mechanisms into consideration. To achieve that, we constructed a novel approach by incorporating drug's Mode of Action (MOA) into Quantitative Structure-Activity Relationship (QSAR) modeling. This MOA-DILI approach was examined using a dataset of 333 drugs...
March 28, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28350949/state-of-the-art-in-degenerative-cervical-myelopathy-an-update-on-current-clinical-evidence
#2
Jefferson R Wilson, Lindsay A Tetreault, Jun Kim, Mohammed F Shamji, James S Harrop, Thomas Mroz, Samuel Cho, Michael G Fehlings
Degenerative cervical myelopathy (DCM) is a common cause of spinal cord dysfunction that confronts clinicians on a daily basis. Research performed over the past few decades has provided improved insight into the diagnosis, evaluation, and treatment of this disorder. We aim to provide clinicians with an update regarding the state of the art in DCM, focusing on more recent research pertaining to pathophysiology, natural history, treatment, consideration of the minimally symptomatic patient, surgical outcome prediction, and outcome measurement...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350852/phylodynamics-on-local-sexual-contact-networks
#3
David A Rasmussen, Roger Kouyos, Huldrych F Günthard, Tanja Stadler
Phylodynamic models are widely used in infectious disease epidemiology to infer the dynamics and structure of pathogen populations. However, these models generally assume that individual hosts contact one another at random, ignoring the fact that many pathogens spread through highly structured contact networks. We present a new framework for phylodynamics on local contact networks based on pairwise epidemiological models that track the status of pairs of nodes in the network rather than just individuals. Shifting our focus from individuals to pairs leads naturally to coalescent models that describe how lineages move through networks and the rate at which lineages coalesce...
March 28, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28350807/external-validation-and-comparison-of-two-variants-of-the-elixhauser-comorbidity-measures-for-all-cause-mortality
#4
Yannick Fortin, James A G Crispo, Deborah Cohen, Douglas S McNair, Donald R Mattison, Daniel Krewski
Assessing prevalent comorbidities is a common approach in health research for identifying clinical differences between individuals. The objective of this study was to validate and compare the predictive performance of two variants of the Elixhauser comorbidity measures (ECM) for inhospital mortality at index and at 1-year in the Cerner Health Facts® (HF) U.S. DATABASE: We estimated the prevalence of select comorbidities for individuals 18 to 89 years of age who received care at Cerner contributing health facilities between 2002 and 2011 using the AHRQ (version 3...
2017: PloS One
https://www.readbyqxmd.com/read/28350792/association-between-delirium-superimposed-on-dementia-and-mortality-in-hospitalized-older-adults-a-prospective-cohort-study
#5
Thiago J Avelino-Silva, Flavia Campora, Jose A E Curiati, Wilson Jacob-Filho
BACKGROUND: Hospitalized older adults with preexisting dementia have increased risk of having delirium, but little is known regarding the effect of delirium superimposed on dementia (DSD) on the outcomes of these patients. Our aim was to investigate the association between DSD and hospital mortality and 12-mo mortality in hospitalized older adults. METHODS AND FINDINGS: This was a prospective cohort study completed in the geriatric ward of a university hospital in São Paulo, Brazil...
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28350746/perceived-stress-as-a-risk-factor-for-dyspepsia-a-register-based-cohort-study
#6
Ulrik Deding, Christian Torp-Pedersen, Henrik Bøggild
OBJECTIVE: Dyspepsia is a common condition and has a huge impact on quality of life and working capacity, but its causes are not well understood. An association between stress and dyspepsia has been debated for decades, but the issue has not been resolved. We examined the 3-year risk of redeeming a proton-pump inhibitor or an H2-receptor antagonist as a proxy of dyspepsia according to the level of perceived stress. PARTICIPANTS AND METHODS: Perceived stress was measured in a general health survey of 16 124 Danes aged older than 16 years of age in 2010 using Cohen's Perceived Stress Scale...
May 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28350565/impact-of-surgical-approach-on-long-term-survival-in-esophageal-adenocarcinoma-patients-with-or-without-neoadjuvant-chemoradiotherapy
#7
Bo Jan Noordman, David van Klaveren, Mark I van Berge Henegouwen, Bas P L Wijnhoven, Suzanne S Gisbertz, Sjoerd M Lagarde, Ate van der Gaast, Maarten C C M Hulshof, Katharina Biermann, Ewout W Steyerberg, J Jan B van Lanschot
OBJECTIVE: To compare overall survival in patients with esophageal adenocarcinoma who underwent transhiatal esophagectomy (THE) with limited lymphadenectomy or transthoracic esophagectomy (TTE) with extended lymphadenectomy with or without neoadjuvant chemoradiotherapy (nCRT). BACKGROUND: The application of neoadjuvant therapy might change the association between the extent of lymphadenectomy and survival in patients with esophageal adenocarcinoma. This may influence the choice of surgical approach in patients treated with nCRT...
March 27, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28350545/reliability-of-dose-volume-constraint-inference-from-clinical-data
#8
C M Lutz, D S Møller, L Hoffmann, M M Knap, M Alber
Dose volume histogram points (DVHPs) frequently serve as dose constraints in radiotherapy treatment planning. An experiment was designed to investigate the reliability of DVHP inference from clinical data for multiple cohort sizes and complication incidence rates. The experimental background was radiation pneumonitis in non-small cell lung cancer and the DVHP inference method was based on logistic regression. From 102 NSCLC real-life dose distributions and a postulated DVHP model, an 'ideal' cohort was generated where the most predictive model was equal to the postulated model...
April 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28350541/computational-hybrid-anthropometric-paediatric-phantom-library-for-internal-radiation-dosimetry
#9
Tianwu Xie, Niels Kuster, Habib Zaidi
Hybrid computational phantoms combine voxel-based and simplified equation-based modelling approaches to provide unique advantages and more realism for the construction of anthropomorphic models. In this work, a methodology and C++ code are developed to generate hybrid computational phantoms covering statistical distributions of body morphometry in the paediatric population. The paediatric phantoms of the Virtual Population Series (IT'IS Foundation, Switzerland) were modified to match target anthropometric parameters, including body mass, body length, standing height and sitting height/stature ratio, determined from reference databases of the National Centre for Health Statistics and the National Health and Nutrition Examination Survey...
April 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28346762/predicting-the-pain-continuum-after-adolescent-idiopathic-scoliosis-surgery-a-prospective-cohort-study
#10
V Chidambaran, L Ding, D L Moore, K Spruance, E M Cudilo, V Pilipenko, M Hossain, P Sturm, S Kashikar-Zuck, L J Martin, S Sadhasivam
BACKGROUND: Chronic postsurgical pain (CPSP) affects half a million children annually in the United States, with dire socioeconomic consequences, including long-term disability into adulthood. The few studies of CPSP in children are limited by sample size, follow-up duration, non-homogeneity of surgical procedure and factors evaluated. METHODS: In a prospective study of 144 adolescents undergoing a single major surgery (spine fusion), we evaluated demographic, perioperative, surgical and psychosocial factors as predictors of a continuum of postsurgical pain: immediate, pain maintenance at 2-3 months (chronic pain/CP) and persistence of pain a year (persistent pain/PP) after surgery...
March 27, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28346753/association-between-diabetes-mellitus-hyperglycemia-and-peri-implant-diseases-systematic-review-and-meta-analysis
#11
REVIEW
Alberto Monje, Andres Catena, Wenche S Borgnakke
AIM: This systematic review investigates whether hyperglycemia/diabetes mellitus is associated with peri-implant diseases (peri-implant mucositis and peri-implantitis). MATERIALS AND METHODS: Electronic and manual literature searching was conducted. An a priori case definition for peri-implantitis was used as an inclusion criterion to minimize risk of bias. The Newcastle Ottawa Scale was used for quality assessment; random effect models were applied; and results were reported according to the PRISMA Statement...
March 27, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28346706/tooth-loss-in-generalized-aggressive-periodontitis-prognostic-factors-after-17-years-of-supportive-periodontal-treatment
#12
Christian Graetz, Sonja Sälzer, Anna Plaumann, Peter Schlattmann, Maren Kahl, Claudia Springer, Christof Dörfer, Falk Schwendicke
AIM: This retrospective longitudinal study assessed the risk of and prognostic factors for tooth loss in patients with generalized aggressive periodontitis (GAgP) after periodontal treatment in a university setting. METHODS: 57 patients (1505 teeth) were examined before (T0) and after active periodontal therapy (APT, T1) as well as after 17.4±4.8 [range: 9-28] years of supportive periodontal therapy (SPT, T2). Descriptive statistics and a Cox-proportional-hazards shared-frailty model were applied...
March 27, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28346500/night-time-lights-a-global-long-term-look-at-links-to-socio-economic-trends
#13
Jeremy Proville, Daniel Zavala-Araiza, Gernot Wagner
We use a parallelized spatial analytics platform to process the twenty-one year totality of the longest-running time series of night-time lights data-the Defense Meteorological Satellite Program (DMSP) dataset-surpassing the narrower scope of prior studies to assess changes in area lit of countries globally. Doing so allows a retrospective look at the global, long-term relationships between night-time lights and a series of socio-economic indicators. We find the strongest correlations with electricity consumption, CO2 emissions, and GDP, followed by population, CH4 emissions, N2O emissions, poverty (inverse) and F-gas emissions...
2017: PloS One
https://www.readbyqxmd.com/read/28346395/a-correlation-based-joint-cfar-detector-using-adaptively-truncated-statistics-in-sar-imagery
#14
Jiaqiu Ai, Xuezhi Yang, Fang Zhou, Zhangyu Dong, Lu Jia, He Yan
Traditional constant false alarm rate (CFAR) detectors only use the contrast information between ship targets and clutter, and they suffer probability of detection (PD) degradation in multiple target situations. This paper proposes a correlation-based joint CFAR detector using adaptively-truncated statistics (hereafter called TS-2DLNCFAR) in SAR images. The proposed joint CFAR detector exploits the gray intensity correlation characteristics by building a two-dimensional (2D) joint log-normal model as the joint distribution (JPDF) of the clutter, so joint CFAR detection is realized...
March 27, 2017: Sensors
https://www.readbyqxmd.com/read/28346327/development-of-a-new-outcome-prediction-model-in-early-stage-squamous-cell-carcinoma-of-the-oral-cavity-based-on-histopathologic-parameters-with-multivariate-analysis-the-aditi-nuzhat-lymph-node-prediction-score-anlps-system
#15
Aditi Arora, Nuzhat Husain, Ankur Bansal, Azfar Neyaz, Ritika Jaiswal, Kavitha Jain, Arun Chaturvedi, Nidhi Anand, Kiranpreet Malhotra, Saumya Shukla
The aim of this study was to evaluate the histopathologic parameters that predict lymph node metastasis in patients with oral squamous cell carcinoma (OSCC) and to design a new assessment score on the basis of these parameters that could ultimately allow for changes in treatment decisions or aid clinicians in deciding whether there is a need for close follow-up or to perform early lymph node dissection. Histopathologic parameters of 336 cases of OSCC with stage cT1/T2 N0M0 disease were analyzed. The location of the tumor and the type of surgery used for the management of the tumor were recorded for all patients...
March 24, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28346311/latissimus-dorsi-flap-breast-reconstruction-a-nationwide-inpatient-sample-review
#16
Michael R DeLong, Vickram J Tandon, George H Rudkin, Andrew L Da Lio
INTRODUCTION: The latissimus dorsi (LD) myocutaneous flap has been a long term standard for breast reconstruction. The variable indications for the LD flap have not been statistically examined because of the relative infrequency of its use by any single surgeon or institution. METHODS: The Nationwide Inpatient Sample data set was queried for all patient encounters involving a LD myocutaneous flap procedure. The study population was further restricted to female patients with a history of breast cancer or previous mastectomy...
March 24, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28345969/foot-ulceration-in-patients-with-diabetes-a-risk-analysis
#17
Mariana Angela Rossaneis, Maria do Carmo Fernandez Lourenço Haddad, Maria de Fátima Mantovani, Sonia Silva Marcon, Paloma de Souza Cavalcante Pissinati
The study reported in this article aimed to analyse factors associated with the risk of ulceration in the feet of patients with diabetes using a conceptual hierarchic model. It was a cross-sectional study carried out with 1515 people with diabetes mellitus aged 40 years and older. The risk of foot ulceration was of higher significance in male patients with diabetes (adjusted odds ratio (OR)=1.39 (95% confidence interval (CI) 1.11 to 1.73); p=0.020), who did not practise a regular physical activity (adjusted OR=1...
March 23, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28345923/geometry-and-topology-of-2d-dry-foams-computer-simulation-and-experimental-characterisation
#18
Mingming Tong, Katie Cole, Pablo R Brito-Parada, Stephen Johan Neethling, Jan J Cilliers
Pseudo-2D foams are commonly used in foam studies as it is experimentally easier to measure the bubble size distribution and other geometric and topological properties of these foams than it is for a 3D foam. Despite the widespread use of 2D foams in both simulation and experimental studies, many important geometric and topological relationships are still not well understood. Film size, for example, is a key parameter in the stability of bubbles and the overall structure of foams. The relationship between the size distribution of the films in a foam and that of the bubbles themselves is thus a key relationship in the modelling and simulation of unstable foams...
March 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28345844/association-between-the-dna-repair-gene-xrcc3-rs861539-polymorphism-and-risk-of-osteosarcoma-a-systematic-review-and-meta-analysis
#19
Mohammad Reza Sobhan, Mohammad Forat Yazdi, Mahta Mazaheri, Masoud Zare Shehneh, Hossein Neamatzadeh
Objective: Although there are a few studies investigating the relation between X-Ray Repair Cross Complementing 3 (XRCC3) gene rs861539 polymorphism and osteosarcoma (OSA), the results are inconsistent. Therefore, we performed this systematic review and meta-analysis to clarify the associations between XRCC3 rs861539 polymorphism and OSA risk. Methods: We have retrieved published literature from PubMed, Google scholar, and ISI Web of Knowledge up to 25 January 2017. Odds ratios were pooled using either fixed-effects or random effects models...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345442/predicting-1-year-statin-adherence-among-prevalent-users-a-retrospective-cohort-study
#20
Alexis A Krumme, Jessica M Franklin, Danielle L Isaman, Olga S Matlin, Angela Y Tong, Claire M Spettell, Troyen A Brennan, William H Shrank, Niteesh K Choudhry
BACKGROUND: Attempts to predict who is at risk of future nonadherence have largely focused on predictions at the time of therapy initiation; however, these users are only a small proportion of all patients on therapy at any point in time. Methods to predict nonadherence for established medication users, which have not been previously described in the literature, would be helpful to guide efforts to enhance the use of evidence-based therapies. OBJECTIVE: To test approaches for adherence prediction among prevalent statin users, namely the use of short-term filling behavior, investigator-specified predictors from medical and pharmacy administrative claims, and the empirical selection of potential predictors using the high-dimensional propensity score variable selection algorithm...
April 2017: Journal of Managed Care & Specialty Pharmacy
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