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Matthew J Klebanoff, Jagpreet Chhatwal, Jacob D Nudel, Kathleen E Corey, Lee M Kaplan, Chin Hur
Importance: Severe obesity affects 4% to 6% of US youth and is increasing in prevalence. Bariatric surgery for the treatment of adolescents with severe obesity is becoming more common, but data on cost-effectiveness are limited. Objective: To assess the cost-effectiveness of bariatric surgery for adolescents with obesity using recently published results from the Teen-Longitudinal Assessment of Bariatric Surgery study. Design, Setting, and Patients: A state-transition model was constructed to compare 2 strategies: no surgery and bariatric surgery...
October 26, 2016: JAMA Surgery
Ahmad A Abdul-Aziz, Rodney A Hayward, Keith D Aaronson, Scott L Hummel
Importance: US hospitals receive financial penalties for excess risk-standardized 30-day readmissions and mortality in Medicare patients. Under current policy, readmission prevention is incentivized over 10-fold more than mortality reduction. Objective: To determine how penalties for US hospitals would change if policy equally weighted 30-day readmissions and mortality. Design, Setting, and Participants: Publicly available hospital-level data for fiscal year 2014 was obtained, including excess readmission ratio (ERR; risk-standardized predicted over expected 30-day readmissions) and 30-day mortality rates for heart failure, pneumonia, and acute myocardial infarction, as well as readmission penalties (as percent of Medicare Diagnosis Group payments)...
October 26, 2016: JAMA Cardiology
Antti Latvala, Ralf Kuja-Halkola, Christian Rück, Brian M D'Onofrio, Tomas Jernberg, Catarina Almqvist, David Mataix-Cols, Henrik Larsson, Paul Lichtenstein
Importance: Differences in cardiovascular autonomic activity between individuals with psychiatric disorders and healthy controls have been observed, but whether cardiovascular autonomic abnormalities are associated with subsequent psychiatric disorders is unknown. Objective: To investigate whether differences in cardiac autonomic function as indexed by resting heart rate and blood pressure are associated with psychiatric disorders during the lifetime of men in Sweden...
October 26, 2016: JAMA Psychiatry
Helen L MacLaughlin, Iain C Macdougall, Wendy L Hall, Tracy Dew, Konstantinos Mantzoukis, Jude A Oben
BACKGROUND: The outcomes of intragastric balloon (IGB) placement to achieve weight loss in obese patients with chronic kidney disease (CKD) have not been reported to date. This study aimed to assess the safety and efficacy of the IGB as a weight-loss treatment among this patient population. METHODS: A prospective, single-arm, 'first in CKD' interventional study was conducted in patients with a body mass index >35 kg/m2 and CKD stages 3-4, referred for weight loss...
October 27, 2016: American Journal of Nephrology
Ju Hui Jeong, Yong Jin Oh, Yunmee Lho, Sun You Park, Kwang-Hyeon Liu, Eunyoung Ha, Young Ho Seo
The molecular chaperone Hsp90 plays an important role in cancer cell survival and proliferation by regulating the maturation and stabilization of numerous oncogenic proteins. Due to its potential to simultaneously disable multiple signaling pathways, Hsp90 has emerged as an attractive therapeutic target for cancer treatment. In this study, the design, synthesis, and biological evaluation of a series of Hsp90 inhibitors are described. Among the synthetic compounds, 6,7-dihydrothieno [3,2-c]pyridin-5(4H)-yl amide 19 exhibits a remarkable binding affinity to the N-terminus of Hsp90 in a fluorescence polarization (FP) binding assay (IC50 = 50...
October 18, 2016: European Journal of Medicinal Chemistry
C Buratti, F Fantozzi, M Barbanera, E Lascaro, M Chiorri, L Cecchini
Beef cattle production is a widespread activity in Italy in the agricultural field and determines an important impact on environment and resources consumption. Carbon footprint evaluation is thus necessary to evaluate the contributions of the different stages and the possible improvements of the production chain. In this study, two typical Italian beef production systems, a conventional and an organic one are investigated in order to evaluate the greenhouse gas emissions from "cradle to gate farm" by a Life Cycle Assessment (LCA) approach; the carbon footprint (CF) per 1kg of live weight meat is calculated...
October 23, 2016: Science of the Total Environment
W J Wasielesky, L H Poersch, T G Martins, K C Miranda-Filho
In response to growing worldwide market demand, intensive shrimp farming, based on high feed, has developed over the past decade. The nitrogenous compounds mainly generated by animal excretion can cause deterioration of water quality and produce chronic or even acute toxicity to aquatic animals. As prevention, theoretical safety levels have been estimated from acute toxicity tests and they are traditionally used to prevent toxic effects on biota. However, are those concentrations of nitrogenous compounds really safe to Farfantepenaeus paulensis? The current study aimed to investigate the lethal and sublethal effects of ammonia, nitrite and nitrate to juvenile F...
October 24, 2016: Brazilian Journal of Biology, Revista Brasleira de Biologia
Kshipra Singh, Nicole T Al-Greene, Thomas G Verriere, Lori A Coburn, Mohammad Asim, Daniel P Barry, Margaret M Allaman, Dana M Hardbower, Alberto G Delgado, M Blanca Piazuelo, Bruce A Vallance, Alain P Gobert, Keith T Wilson
Solute carrier family 7 member 2 (SLC7A2) is an inducible transporter of the semi-essential amino acid L-arginine (L-Arg), which has been implicated in immune responses to pathogens. We assessed the role of SLC7A2 in murine infection with Citrobacter rodentium, an attaching and effacing enteric pathogen that causes colitis. Induction of SLC7A2 was upregulated in colitis tissues, and localized predominantly to colonic epithelial cells. Compared to wild-type mice, Slc7a2-/-mice infected with C. rodentium had improved survival and decreased weight loss, colon weight, and histologic injury; this was associated with decreased colonic macrophages, dendritic cells, granulocytes, and Th1 and Th17 cells...
October 2016: PLoS Pathogens
Ann-Sophie Schott, Jürgen Behr, Jennifer Quinn, Rudi F Vogel
Lactic acid bacteria (LAB) are widely used as starter cultures in the manufacture of foods. Upon preparation, these cultures undergo various stresses resulting in losses of survival and fitness. In order to find conditions for the subsequent identification of proteomic biomarkers and their exploitation for preconditioning of strains, we subjected Lactobacillus (Lb.) paracasei subsp. paracasei TMW 1.1434 (F19) to different stress qualities (osmotic stress, oxidative stress, temperature stress, pH stress and starvation stress)...
2016: PloS One
Chao Wu, Xinyue Ye, Fu Ren, You Wan, Pengfei Ning, Qingyun Du
Housing is among the most pressing issues in urban China and has received considerable scholarly attention. Researchers have primarily concentrated on identifying the factors that influence residential property prices and how such mechanisms function. However, few studies have examined the potential factors that influence housing prices from a big data perspective. In this article, we use a big data perspective to determine the willingness of buyers to pay for various factors. The opinions and geographical preferences of individuals for places can be represented by visit frequencies given different motivations...
2016: PloS One
Nanna Hellum Nielsen, Ahmed Jahoor, Jens Due Jensen, Jihad Orabi, Fabio Cericola, Vahid Edriss, Just Jensen
Genomic selection was recently introduced in plant breeding. The objective of this study was to develop genomic prediction for important seed quality parameters in spring barley. The aim was to predict breeding values without expensive phenotyping of large sets of lines. A total number of 309 advanced spring barley lines tested at two locations each with three replicates were phenotyped and each line was genotyped by Illumina iSelect 9Kbarley chip. The population originated from two different breeding sets, which were phenotyped in two different years...
2016: PloS One
Elisa Terracciano, Ermanno Zorzoli, Gian Loreto D'Alò, Laura Zaratti, Elisabetta Franco
Vaccinations and the controversy around them always go in parallel. We identified four categories blending in various amounts of truth and imagination: history, myths, shams and frauds. Over the years, they have alternated and sometimes transformed into one another. This sharp separation into categories is certainly academic and forced. In fact, the line between these aspects is not clear enough to allow a rigid and well-defined division. Our work starts from the category containing the most truthfulness: history, and goes on to analyze two categories that add fantasy to facts: myths and shams (or better, "old wives' tales")...
July 2016: Igiene e Sanità Pubblica
Michael Pieroni, Clara Lagomarsini, Danilo De Rossi, Federico Carpi
Electrically tunable lenses are conceived as deformable adaptive optical components able to change focus without motor-controlled translations of stiff lenses. In order to achieve large tuning ranges, large deformations are needed. This requires new technologies for the actuation of highly stretchable lenses. This paper presents a configuration to obtain compact tunable lenses entirely made of soft solid matter (elastomers). This was achieved by combining the advantages of dielectric elastomer actuation (DEA) with a design inspired by the accommodation of reptiles and birds...
October 26, 2016: Bioinspiration & Biomimetics
JaeJin An
BACKGROUND: Current evidence suggests that patient-centered medical homes (PCMHs) potentially increase overall quality of disease management, including preventive care. However, there are mixed findings regarding quality of diabetes care, and little evidence exists with respect to the effect of PCMHs on medication adherence in patients with diabetes. OBJECTIVE: To investigate associations between PCMHs and process measures of diabetes care, as well as adherence to oral hypoglycemic agents (OHAs) in patients with diabetes in a nationally representative U...
November 2016: Journal of Managed Care & Specialty Pharmacy
Shivani K Mhatre, Omar Serna, Shubhada Sansgiry, Marc L Fleming, E James Essien, Sujit S Sansgiry
BACKGROUND: Low adherence to oral antidiabetic drugs (OADs) in the Medicare population can greatly reduce Centers for Medicare & Medicaid Services (CMS) star ratings for managed care organizations (MCOs). OBJECTIVE: To develop and validate a risk assessment tool (Prescription Medication Adherence Prediction Tool for Diabetes Medications [RxAPT-D]) to predict nonadherence to OADs using Medicare claims data. METHODS: In this retrospective observational study, claims data for members enrolled in a Medicare Advantage Prescription Drug (MA-PD) program in Houston, Texas, were used...
November 2016: Journal of Managed Care & Specialty Pharmacy
Andrew B Rosenkrantz, James S Babb, Samir S Taneja, Justin M Ream
Purpose To test the impact of existing Prostate Imaging Reporting and Data System (PI-RADS) version 2 (V2) decision rules, as well as of proposed adjustments to these decision rules, on detection of Gleason score (GS) 7 or greater (GS ≥7) prostate cancer. Materials and Methods Two radiologists independently provided PI-RADS V2 scores for the dominant lesion on 343 prostate magnetic resonance (MR) examinations. Diagnostic performance for GS ≥7 tumor was assessed by using MR imaging-ultrasonography fusion-targeted biopsy as the reference...
October 26, 2016: Radiology
Xingjuan Zhao, Xiaoli Yu, Yong-Ill Lee, Hong-Guo Liu
Composite thin films with well-defined and parallel nanowires were fabricated from the binary blends of a diblock copolymer polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) and several homo-polystyrenes (h-PSs) at the air/liquid interface through a facile technique, which involves solution self-assembly, interface adsorption, and further self-organization processes. It was confirmed that the nanowires that appeared at the air/water interface came from the cylindrical micelles formed in solution. Interestingly, the diameters of the nanowires are uniform and can be tuned precisely from 45 to 247 nm by incorporating the h-PS molecules into the micellar core...
October 26, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
Peter Olsén, Jenny Undin, Karin Odelius, Helmut Keul, Ann-Christine Albertsson
Full control over the ceiling temperature (Tc) enables a selective transition between the monomeric and polymeric state. This is exemplified by the conversion of the monomer 2-allyloxymethyl-2-ethyl-trimethylene carbonate (AOMEC) to poly(AOMEC) and back to AOMEC within 10 h by controlling the reaction from conditions that favor ring-opening polymerization (Tc > T0) (where T0 is the reaction temperature) to conditions that favor ring-closing depolymerization (Tc < T0). The ring-closing depolymerization (RCDP) mirrors the polymerization behavior, with a clear relation between the monomer concentration and the molecular weight of the polymer, indicating that RCDP occurs at the chain end...
October 26, 2016: Biomacromolecules
Zhijun Li, Matthew D Muller, Jianli Wang, Christopher T Sica, Prasanna Karunanayaka, Lawrence I Sinoway, Qing X Yang
PURPOSE: To evaluate the dynamic characteristics of T2* -weighted signal change in exercising skeletal muscle of healthy subjects and peripheral artery disease (PAD) patients under a low-intensity exercise paradigm. MATERIALS AND METHODS: Nine PAD patients and nine age- and sex-matched healthy volunteers underwent a low-intensity exercise paradigm while magnetic resonance imaging (MRI) (3.0T) was obtained. T2*-weighted signal time-courses in lateral gastrocnemius, medial gastrocnemius, soleus, and tibialis anterior were acquired and analyzed...
October 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
Xin Chen, Zelan Ma, Yanqi Huang, Lan He, Cuishan Liang, Changzheng Shi, Zhongping Zhang, Changhong Liang, Zaiyi Liu
PURPOSE: To investigate the value of multiparametric magnetic resonance imaging (MRI) diffusion-weighted imaging (DWI) for monitoring the ultra-early (within 24 hours) treatment effect of sorafenib in human hepatocellular carcinoma (HCC) xenografts. MATERIALS AND METHODS: With institutional Animal Care and Use Committee approval, 16 BALB/c nude mice bearing subcutaneous HCC xenografts underwent serial Gaussian and non-Gaussian DWI at baseline and 1, 3, 6, 12, and 24 hours posttreatment using a 1...
October 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
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