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https://www.readbyqxmd.com/read/28231626/default-mode-network-deactivation-to-smoking-cue-relative-to-food-cue-predicts-treatment-outcome-in-nicotine-use-disorder
#1
Claire E Wilcox, Eric D Claus, Vince D Calhoun, Srinivas Rachakonda, Rae A Littlewood, Jessica Mickey, Pamela B Arenella, Natalie Goodreau, Kent E Hutchison
Identifying predictors of treatment outcome for nicotine use disorders (NUDs) may help improve efficacy of established treatments, like varenicline. Brain reactivity to drug stimuli predicts relapse risk in nicotine and other substance use disorders in some studies. Activity in the default mode network (DMN) is affected by drug cues and other palatable cues, but its clinical significance is unclear. In this study, 143 individuals with NUD (male n = 91, ages 18-55 years) received a functional magnetic resonance imaging scan during a visual cue task during which they were presented with a series of smoking-related or food-related video clips prior to randomization to treatment with varenicline (n = 80) or placebo...
February 23, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28231602/observational-case-series-evaluation-of-the-granisetron-transdermal-patch-system-sancuso-for-the-management-of-nausea-vomiting-of-pregnancy
#2
Tran N Le, Michael T Adler, Holly Ouillette, Pamela Berens, Judith A Smith
Objective The objective of this study was to observe the efficacy of antiemetic therapy (no emesis/retching episodes and no rescue medication use) when granisetron is administered via a transdermal patch system (TDS) in women who are 6 to 14 weeks pregnant when compared with oral ondansetron by evaluating the frequency of the use of rescue medications for control of nausea/vomiting of pregnancy (NVP). Methods This was an observational case series study to observe the potential benefits of granisetron TDS compared with oral ondansetron for management of NVP in pregnant patients during the first trimester...
February 23, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28231585/is-imprint-cytology-useful-to-diagnose-malignancy-for-brenner-tumors-a-case-series-at-a-single-institute
#3
Junko Minato, Hideki Tokunaga, Satoshi Okamoto, Yusuke Shibuya, Hitoshi Niikura, Nobuo Yaegashi
BACKGROUND: The aim of this study was to investigate cytological features of Brenner tumors according to tumor grade using imprint cytology. CASE: Between 2004 and 2015, intraoperative imprint cytology was performed on 8 patients with Brenner tumors suspected to be malignant neoplasmas on gross examination because of their large size and solid part. These consisted of 1 benign, 3 borderline, and 4 malignant tumors. In patients with benign and borderline tumors, naked nucleus-like stromal cells and tumor cells in a sheet-like arrangement were observed against a clear background...
February 24, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28231561/structural-analysis-of-rebaudioside-a-derivatives-obtained-by-lactobacillus-reuteri-180-glucansucrase-catalyzed-trans-%C3%AE-glucosylation
#4
Gerrit J Gerwig, Evelien M Te Poele, Lubbert Dijkhuizen, Johannis P Kamerling
The wild-type Gtf180-ΔN glucansucrase enzyme from Lactobacillus reuteri 180 was found to catalyze the α-glucosylation of the steviol glycoside rebaudioside A, using sucrose as glucosyl donor in a transglucosylation process. Structural analysis of the formed products by MALDI-TOF mass spectrometry, methylation analysis and NMR spectroscopy showed that rebaudioside A is specifically α-d-glucosylated at the steviol C-19 β-d-glucosyl moiety (55% conversion). The main product is a mono-(α1 → 6)-glucosylated derivative (RebA-G1)...
January 31, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28231524/discovery-of-novel-cdk8-inhibitors-using-multiple-crystal-structures-in-docking-based-virtual-screening
#5
Taijin Wang, Zhuang Yang, Yongguang Zhang, Wei Yan, Fang Wang, Linhong He, Yuanyuan Zhou, Lijuan Chen
The cyclin dependent kinase CDK8, along with Med12 and Med13, form the kinase module of the Mediator complex. CDK8 expression associates with the activation of β-catenin in colon and gastric cancers. Herein, we applied docking-based virtual screening (VS) using the multiple crystal structures to identify several potent CDK8 inhibitors. The appropriate use of multiple crystal structures obtained a better enrichment of CDK8 conformations to cope with the protein flexibility. Later on, the 2D similarity search was used to find the derivatives of the high inhibitory CDK8 inhibitors we discovered by VS...
February 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28231390/intraoperative-assessment-of-laryngeal-pathologies-with-optical-coherence-tomography-integrated-into-a-surgical-microscope
#6
Anna S Englhard, Tom Betz, Veronika Volgger, Eva Lankenau, Georg J Ledderose, Herbert Stepp, Christian Homann, Christian S Betz
OBJECTIVE: Endoscopic examination followed by tissue biopsy is the gold standard in the evaluation of lesions of the upper aerodigestive tract. However, it can be difficult to distinguish between healthy mucosa, dysplasia, and invasive carcinoma. Optical coherence tomography (OCT) is a non-invasive technique which acquires high-resolution, cross-sectional images of tissue in vivo. Integrated into a surgical microscope, it allows the intraoperative evaluation of lesions simultaneously with microscopic visualization...
February 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28231374/mechanical-venous-anastomosis-in-head-and-neck-microvascular-reconstruction-as-an-equivalent-to-the-gold-standard
#7
Eric Thorpe, Yash Patil
To define the most successful and efficient manner to perform venous microvascular anastomoses, the effectiveness of mechanical venous anastomosis in head and neck microvascular reconstruction is reviewed. Head and neck reconstruction with free flap techniques has become the norm and gold standard for large defects. This retrospective, multicenter case series of a single microvascular surgeon's experience with mechanical venous anastomoses specifically assessed the effectiveness of head and neck reconstruction and the complications associated with it...
February 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28231300/detection-and-partial-discrimination-of-atypical-and-classical-bovine-spongiform-encephalopathies-in-cattle-and-primates-using-real-time-quaking-induced-conversion-assay
#8
Etienne Levavasseur, Anne-Gaëlle Biacabe, Emmanuel Comoy, Audrey Culeux, Katarina Grznarova, Nicolas Privat, Steve Simoneau, Benoit Flan, Véronique Sazdovitch, Danielle Seilhean, Thierry Baron, Stéphane Haïk
The transmission of classical bovine spongiform encephalopathy (C-BSE) through contaminated meat product consumption is responsible for variant Creutzfeldt-Jakob disease (vCJD) in humans. More recent and atypical forms of BSE (L-BSE and H-BSE) have been identified in cattle since the C-BSE epidemic. Their low incidence and advanced age of onset are compatible with a sporadic origin, as are most cases of Creutzfeldt-Jakob disease (CJD) in humans. Transmissions studies in primates and transgenic mice expressing a human prion protein (PrP) indicated that atypical forms of BSE may be associated with a higher zoonotic potential than classical BSE, and require particular attention for public health...
2017: PloS One
https://www.readbyqxmd.com/read/28231296/cooperation-decision-time-and-culture-online-experiments-with-american-and-indian-participants
#9
Akihiro Nishi, Nicholas A Christakis, David G Rand
Two separate bodies of work have examined whether culture affects cooperation in economic games and whether cooperative or non-cooperative decisions occur more quickly. Here, we connect this work by exploring the relationship between decision time and cooperation in American versus Indian subjects. We use a series of dynamic social network experiments in which subjects play a repeated public goods game: 80 sessions for a total of 1,462 subjects (1,059 from the United States, 337 from India, and 66 from other countries) making 13,560 decisions...
2017: PloS One
https://www.readbyqxmd.com/read/28231147/applying-least-absolute-shrinkage-selection-operator-and-akaike-information-criterion-analysis-to-find-the-best-multiple-linear-regression-models-between-climate-indices-and-components-of-cow-s-milk
#10
Mohammad Reza Marami Milani, Andreas Hense, Elham Rahmani, Angelika Ploeger
This study focuses on multiple linear regression models relating six climate indices (temperature humidity THI, environmental stress ESI, equivalent temperature index ETI, heat load HLI, modified HLI (HLI new), and respiratory rate predictor RRP) with three main components of cow's milk (yield, fat, and protein) for cows in Iran. The least absolute shrinkage selection operator (LASSO) and the Akaike information criterion (AIC) techniques are applied to select the best model for milk predictands with the smallest number of climate predictors...
July 23, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231086/a-theoretical-analysis-for-assessing-the-variability-of-secondary-model-thermal-inactivation-kinetic-parameters
#11
Maria C Giannakourou, Nikolaos G Stoforos
Traditionally, for the determination of the kinetic parameters of thermal inactivation of a heat labile substance, an appropriate index is selected and its change is measured over time at a series of constant temperatures. The rate of this change is described through an appropriate primary model and a secondary model is applied to assess the impact of temperature. By this approach, the confidence intervals of the estimates of the rate constants are not taken into account. Consequently, the calculated variability of the secondary model parameters can be significantly lower than the actual variability...
January 12, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231030/safety-of-patient-mobilization-and-rehabilitation-in-the-icu-systematic-review-with-meta-analysis
#12
Peter Nydahl, Thiti Sricharoenchai, Saurabh Chandra, Firuzan Sari Kundt, Minxuan Huang, Magdalena Fischill, Dale M Needham
BACKGROUND: Early mobilization and rehabilitation of patients in intensive care units (ICU) may improve physical function, and reduce the duration of delirium, mechanical ventilation and ICU length of stay. However, safety concerns are an important barrier to widespread implementation. OBJECTIVE: To synthesize safety data regarding patient mobilization and rehabilitation in the ICU, including falls, removal of endotracheal tubes (ETT), removal or dysfunction of intravascular catheters, removal of other catheters/tubes, cardiac arrest, hemodynamic changes and desaturation...
February 23, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28231021/high-complication-rate-after-introduction-of-transbronchial-cryobiopsy-into-clinical-practice-at-an-academic-medical-center
#13
David M DiBardino, Andrew R Haas, Anthony R Lanfranco, Leslie A Litzky, Daniel Sterman, Jamie L Bessich
RATIONALE: Transbronchial cryobiopsy is an emerging technique for obtaining biopsies of lung parenchyma. Despite limited evidence of safety and efficacy in direct comparison to other available biopsy procedures, pulmonologists are integrating this technique into clinical practice with the hope of avoiding the risks of surgical lung biopsy. OBJECTIVES: To report the rate of severe complications and diagnostic outcomes immediately after introduction of transbronchial cryobiopsy into the clinical practice of a single-center, high-volume, interventional pulmonary group at a large academic medical center in the United States...
February 23, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28230992/novel-design-of-heptad-amphiphiles-to-enhance-cell-selectivity-salt-resistance-anti-biofilm-properties-and-their-membrane-disruptive-mechanism
#14
Xiujing Dou, Xin Zhu, Jiajun Wang, Na Dong, Anshan Shan
Coiled-coil, a basic folding pattern of native proteins, was previously demonstrated to be associated with the specific spatial recognition, association, and dissociation of proteins and can be used to perfect engineering peptide model. Thus, in this study, a series of amphiphiles composed of heptads repeats with coiled-coil structures was constructed, and the designed peptides exhibited a broad spectrum of antimicrobial activities. Circular dichroism and biological assays showed that the heptad repeats and length of the linker between the heptads largely influenced the amphiphile's helical propensity and cell selectivity...
February 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28230988/design-and-synthesis-of-novel-cyclic-amine-benzimidazoles-for-the-treatment-of-pancreatic-cancer
#15
Vibha Pathak, Corinne Elizabeth Augelli-Szafran, Han-Xun Wei, Yonghe Li, Patsy G Oliver, Wenyan Lu, Donald J Buchsbaum, Mark J Suto
Wnt/beta-Catenin signaling pathway has a very important role in pancreatic ductal adenocarcinoma (PDAC) initiation and progression. This signaling pathway has been implicated in angiogenesis, maintenance of resistant CICs (cancer-initiating cells), metastasis, regulation of cell cycle, apoptosis and chemoresistance. We investigated the activity of a chemical series of phenyl benzimidazoles, small molecule inhibitors of Wnt signaling in LRP6-expressing HEK 293 cells against PDAC cells. Several benzimidazoles were designed, synthesized and screened under adherent and CIC conditions...
February 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28230986/design-synthesis-and-evaluation-of-a-novel-series-of-oxadiazine-gamma-secretase-modulators-for-familial-alzheimer-s-disease
#16
Matthew G Bursavich, Bryce A Harrison, Raksha Acharya, Donald E Costa, Emily A Freeman, Hilliary E Hodgdon, Lori A Hrdlicka, Hong Jin, Sudarshan Kapadnis, Jeffrey S Moffit, Deirdre A Murphy, Scott Nolan, Holger Patzke, Cuyue Tang, Melody Wen, Gerhard Koenig, Jean-François Blain, Duane A Burnett
Herein we describe the design, synthesis and evaluation of a novel series of oxadiazine-based gamma secretase modulators obtained via isosteric amide replacement and critical consideration of conforma-tional restriction. Oxadiazine lead 47 possesses good in vitro potency with excellent predicted CNS drug-like properties and desirable ADME/PK profile. This lead compound demonstrated robust Aβ42 reductions and subsequent Aβ37 increases in both rodent brain and CSF at 30 mg/kg dosed orally.
February 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28230983/when-anatase-nanoparticles-become-bulk-like-properties-of-realistic-tio2-nanoparticles-in-the-1-6-nm-size-range-from-all-electron-relativistic-density-functional-theory-based-calculations
#17
Oriol Lamiel-Garcia, Kyoung Chul Ko, Jin Yong Lee, Stefan T Bromley, Francesc Illas
All electron relativistic density functional theory (DFT) based calculations using numerical atom-centered orbitals have been carried out to explore the relative stability, atomic and electronic structure of a series of stoichiometric TiO2 anatase nanoparticles explicitly containing up to 1365 atoms as a function of size and morphology. The nanoparticles under scrutiny exhibit octahedral or truncated octahedral structures and span the 1- 6 nm size range. Initial structures were obtained from a Wulff construction, thus exhibiting the most stable (101) and (001) anatase surfaces...
February 23, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28230971/multifaceted-gold-palladium-bimetallic-nanorods-and-their-geometric-compositional-and-catalytic-tunabilities
#18
Lichao Sun, Qingfeng Zhang, Guangfang Grace Li, Esteban Villarreal, Xiaoqi Fu, Hui Wang
Kinetically controlled, seed-mediated coreduction provides a robust and versatile synthetic approach to multimetallic nanoparticles with precisely controlled geometries and compositions. Here we demonstrate that single-crystalline cylindrical Au nanorods selectively transform into a series of structurally distinct Au@Au-Pd alloy core-shell bimetallic nanorods with exotic multifaceted geometries enclosed by specific types of facets upon seed-mediated Au-Pd coreduction under diffusion controlled conditions. By adjusting several key synthetic parameters, such as the Pd/Au precursor ratio, the reducing agent concentration, the capping surfactant concentration, and foreign metal ion additives, we have been able to simultaneously fine-tailor the atomic-level surface structures and fine-tune the compositional stoichiometries of the multifaceted Au-Pd bimetallic nanorods...
February 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28230899/shared-care-across-the-interface-between-primary-and-specialty-care-in-management-of-long-term-conditions
#19
REVIEW
Susan M Smith, Gráinne Cousins, Barbara Clyne, Shane Allwright, Tom O'Dowd
BACKGROUND: Shared care has been used in the management of many chronic conditions with the assumption that it delivers better care than primary or specialty care alone; however, little is known about the effectiveness of shared care. OBJECTIVES: To determine the effectiveness of shared care health service interventions designed to improve the management of chronic disease across the primary/specialty care interface. This is an update of a previously published review...
February 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28230775/prec-and-c-regions-of-woodchuck-hepatitis-virus-facilitate-persistent-expression-of-surface-antigen-of-chimeric-whv-hbv-virus-in-the-hydrodynamic-injection-balb-c-mouse-model
#20
Weimin Wu, Yan Liu, Yong Lin, Danzhen Pan, Dongliang Yang, Mengji Lu, Yang Xu
In the hydrodynamic injection (HI) BALB/c mouse model with the overlength viral genome, we have found that woodchuck hepatitis virus (WHV) could persist for a prolonged period of time (up to 45 weeks), while hepatitis B virus (HBV) was mostly cleared at week four. In this study, we constructed a series of chimeric genomes based on HBV and WHV, in which the individual sequences of a 1.3-fold overlength HBV genome in pBS-HBV1.3 were replaced by their counterparts from WHV. After HI with the WHV-HBV chimeric constructs in BALB/c mice, serum viral antigen, viral DNA (vDNA), and intrahepatic viral antigen expression were analyzed to evaluate the persistence of the chimeric genomes...
February 21, 2017: Viruses
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