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https://www.readbyqxmd.com/read/28098963/scaffolding-of-enzymes-on-virus-nanoarrays-effects-of-confinement-and-virus-organization-on-biocatalysis
#1
Anisha N Patel, Agnès Anne, Arnaud Chovin, Christophe Demaille, Eric Grelet, Thierry Michon, Cécilia Taofifenua
Organizing active enzyme molecules on nanometer-sized scaffolds is a promising strategy for designing highly efficient supported catalytic systems for biosynthetic and sensing applications. This is achieved by designing model nanoscale enzymatic platforms followed by thorough analysis of the catalytic activity. Herein, the virus fd bacteriophage is considered as an enzyme nanocarrier to study the scaffolding effects on enzymatic activity. Nanoarrays of randomly oriented, or directionally patterned, fd bacteriophage virus are functionalized with the enzyme glucose oxidase (GOx), using an immunological assembly strategy, directly on a gold electrode support...
January 18, 2017: Small
https://www.readbyqxmd.com/read/28098961/angiogenic-and-osteogenic-regeneration-in-rats-via-calcium-phosphate-scaffold-and-endothelial-cell-coculture-with-hbmscs-hucmscs-hipsc-mscs-and-hesc-mscs
#2
Wenchuan Chen, Xian Liu, Qianmin Chen, Chongyun Bao, Liang Zhao, Zhimin Zhu, Hockin H K Xu
Angiogenesis is a limiting factor in regenerating large bone defects. The objective of this study was to investigate angiogenic and osteogenic effects of coculture on calcium phosphate cement (CPC) scaffold using human umbilical vein endothelial cells (hUVECs) and mesenchymal stem cells (MSCs) from different origins for the first time. hUVECs were cocultured with four types of cells: human umbilical cord MSCs (hUCMSCs), human bone marrow MSCs (hBMSCs), and MSCs from induced pluripotent stem cells (hiPSC-MSCs) and embryonic stem cells (hESC-MSCs)...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28098959/influence-of-electronic-and-molecular-structure-on-the-fragmentation-dynamic-of-even-electron-carbocationic-triangulenes-and-helicenes-in-the-gas-phase
#3
Jakob Felix Hitzenberger, Agnes Uhl, Jürgen Schatz, Thomas Drewello
Stable, long-lived organic cations are directly transferred by electrospray ionization (ESI) from solution into the gas phase where their collision-induced dissociations (CID) are studied by tandem mass spectrometry. Three related types of triphenyl carbenium ions are investigated, in which the meta positions are either substituted by methoxy groups or tertiary nitrogen bridges, including Tetramethoxyphenylacridinium (TMPA(+) ), dimethoxyquinacridinium (DMQA(+) ) and triazatriangulenium (TATA(+) ) cations. These ions are triangular in shape with increasing degrees of planarity...
January 18, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28098958/perilesional-hyperintensity-on-t1-weighted-images-in-intra-axial-brain-masses-other-than-cavernous-malformations
#4
S Ali Nabavizadeh, Dasha Pechersky, J Eric Schmitt, MacLean Nasrallah, Ronald Wolf, Laurie Loevner, Alexander C Mamourian
BACKGROUND AND PURPOSE: Hyperintensity on T1-weighted imaging in perilesional vasogenic edema has been reported as a useful sign for differentiating cavernous malformation from other hemorrhagic intra-axial masses. In this study, we investigated the frequency of perilesional hyperintensity on T1-weighted imaging in patients with intra-axial hemorrhagic and nonhemorrhagic brain masses. METHODS: The study was performed with the approval of the institutional review board...
January 18, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28098957/the-risk-factors-for-postpartum-depression-a-population-based-study
#5
Michael E Silverman, Abraham Reichenberg, David A Savitz, Sven Cnattingius, Paul Lichtenstein, Christina M Hultman, Henrik Larsson, Sven Sandin
BACKGROUND: Postpartum depression (PPD) can result in negative personal and child developmental outcomes. Only a few large population-based studies of PPD have used clinical diagnoses of depression and no study has examined how a maternal depression history interacts with known risk factors. The objective of this study was to examine the impact of a depression history on PPD and pre- and perinatal risk factors. METHODS: A nationwide prospective cohort study of all women with live singleton births in Sweden from 1997 through 2008 was conducted...
January 18, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28098956/the-effect-of-reference-group-classification-and-change-in-alcohol-consumption-on-the-association-between-alcohol-consumption-and-cardiovascular-disease
#6
Ji-Eun Park, Yeonhee Ryu, Sung-Il Cho
BACKGROUND: Many studies suggest that mild alcohol consumption can help avert cardiovascular disease (CVD). This study investigated the association between alcohol consumption and CVD incidence, and assessed whether this differed by reference group classification. As alcohol consumption amounts may change over time, the results of simple and time-dependent analyses were compared. METHODS: Data were from a community-based cohort study on 40- to 69-year-old Koreans recruited in 2001 to 2002...
January 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28098955/the-impact-of-childhood-cancer-perceptions-of-adult-survivors
#7
Victoria W Willard, James L Klosky, Chenghong Li, Deo Kumar Srivastava, Tara M Brinkman, Leslie L Robison, Melissa M Hudson, Sean Phipps
BACKGROUND: The objective of this study was to describe perceptions and associated risk factors of the impact of cancer on functional outcomes, including social relationships, exercise, finances, and religion, among adult survivors of childhood cancer. METHODS: Evaluable participants included 3001 adult survivors (mean age, 32.5 years; range, 18.3-63.8 years; 24.1 years from diagnosis; 50.8% male; 84.9% Caucasian) who were enrolled in the St. Jude Lifetime Cohort study...
January 18, 2017: Cancer
https://www.readbyqxmd.com/read/28098954/use-of-play-therapy-in-nursing-process-a-prospective-randomized-controlled-study
#8
Emel Sezici, Ayse Ferda Ocakci, Hasibe Kadioglu
PURPOSE: Play therapy is a nursing intervention employed in multidisciplinary approaches to develop the social, emotional, and behavioral skills of children. In this study, we aim to determine the effects of play therapy on the social, emotional, and behavioral skills of pre-school children through the nursing process. DESIGN: A single-blind, prospective, randomized controlled study was undertaken. The design, conduct, and reporting of this study adhere to the Consolidated Standards of Reporting Trials (CONSORT) guidelines...
January 18, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28098953/mesoporous-germanium-anode-materials-for-lithium-ion-battery-with-exceptional-cycling-stability-in-wide-temperature-range
#9
Sinho Choi, Yoon-Gyo Cho, Jieun Kim, Nam-Soon Choi, Hyun-Kon Song, Guoxiu Wang, Soojin Park
Porous structured materials have unique architectures and are promising for lithium-ion batteries to enhance performances. In particular, mesoporous materials have many advantages including a high surface area and large void spaces which can increase reactivity and accessibility of lithium ions. This study reports a synthesis of newly developed mesoporous germanium (Ge) particles prepared by a zincothermic reduction at a mild temperature for high performance lithium-ion batteries which can operate in a wide temperature range...
January 18, 2017: Small
https://www.readbyqxmd.com/read/28098952/solving-the-puzzle-of-one-carbon-loss-in-ripostatin-biosynthesis
#10
Chengzhang Fu, David Auerbach, Yanyan Li, Ullrich Scheid, Eva Luxenburger, Ronald Garcia, Herbert Irschik, Rolf Müller
Ripostatin is a promising antibiotic that inhibits RNA polymerase by binding to a novel binding site. In this study, the characterization of the biosynthetic gene cluster of ripostatin, which is a peculiar polyketide synthase (PKS) hybrid cluster encoding cis- and trans-acyltransferase PKS genes, is reported. Moreover, an unprecedented mechanism for phenyl acetic acid formation and loading as a starter unit was discovered. This phenyl-C2 unit is derived from phenylpyruvate (phenyl-C3) and the mechanism described herein explains the mysterious loss of one carbon atom in ripostatin biosynthesis from the phenyl-C3 precursor...
January 18, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28098951/lessons-learned-from-a-practice-based-multisite-intervention-study-with-nurse-participants
#11
Christopher R Friese, Kari Mendelsohn-Victor, Pamela Ginex, Carol M McMahon, Alex J Fauer, Marjorie C McCullagh
PURPOSE: To identify challenges and solutions to the efficient conduct of a multisite, practice-based randomized controlled trial to improve nurses' adherence to personal protective equipment use in ambulatory oncology settings. DESIGN: The Drug Exposure Feedback and Education for Nurses' Safety (DEFENS) study is a clustered, randomized, controlled trial. Participating sites are randomized to Web-based feedback on hazardous drug exposures in the sites plus tailored messages to address barriers versus a control intervention of a Web-based continuing education video...
January 18, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28098949/identification-of-cellular-targets-involved-in-cardiac-failure-caused-by-pki-in-oncology-an-approach-combining-pharmacovigilance-and-pharmacodynamics
#12
E Patras de Campaigno, E Bondon-Guitton, G Laurent, F Montastruc, J L Montastruc, M Lapeyre-Mestre, F Despas
AIMS: To evaluate the risk of cardiac failure (CF) of 15 anticancer protein kinase inhibitors (PKIs) through a case/non-case analysis and to identify which PK(s) and pathways are involved in PKI-induced CF. METHODS: To evaluate the risk of CF, adjusted reporting odds ratios (aRORs) were calculated for the 15 anticancer PKIs in the WHO safety report database (VigiBase®). We realised a literature review to identify 21 PK possibly involved in CF caused by PKIs. Pearson's correlation coefficients (r) between aROR and affinity data of the 15 PKIs for the 21 PKs were calculated to identify the cellular target most likely involved in PKI-induced CF...
January 18, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28098948/phosphorus-acquisition-efficiency-in-arbuscular-mycorrhizal-maize-is-correlated-with-the-abundance-of-root-external-hyphae-and-the-accumulation-of-transcripts-encoding-pht1-phosphate-transporters
#13
Ruairidh J H Sawers, Simon F Svane, Clement Quan, Mette Grønlund, Barbara Wozniak, Mesfin-Nigussie Gebreselassie, Eliécer González-Muñoz, Ricardo A Chávez Montes, Ivan Baxter, Jerome Goudet, Iver Jakobsen, Uta Paszkowski
Plant interactions with arbuscular mycorrhizal fungi have long attracted interest for their potential to promote more efficient use of mineral resources in agriculture. Their use, however, remains limited by a lack of understanding of the processes that determine the outcome of the symbiosis. In this study, the impact of host genotype on growth response to mycorrhizal inoculation was investigated in a panel of diverse maize lines. A panel of 30 maize lines was evaluated with and without inoculation with arbuscular mycorrhizal fungi...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28098947/conservation-vs-divergence-in-leafy-and-apetala1-functions-between-arabidopsis-thaliana-and-cardamine-hirsuta
#14
Marie Monniaux, Sarah M McKim, Maria Cartolano, Emmanuel Thévenon, François Parcy, Miltos Tsiantis, Angela Hay
A conserved genetic toolkit underlies the development of diverse floral forms among angiosperms. However, the degree of conservation vs divergence in the configuration of these gene regulatory networks is less clear. We addressed this question in a parallel genetic study between the closely related species Arabidopsis thaliana and Cardamine hirsuta. We identified leafy (lfy) and apetala1 (ap1) alleles in a mutant screen for floral regulators in C. hirsuta. C. hirsuta lfy mutants showed a complete homeotic conversion of flowers to leafy shoots, mimicking lfy ap1 double mutants in A...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28098946/negative-association-between-mr-spectroscopic-glutamate-markers-and-gray-matter-volume-after-alcohol-withdrawal-in-the-hippocampus-a-translational-study-in-humans-and-rats
#15
Ulrich Frischknecht, Derik Hermann, Nuran Tunc-Skarka, Guo-Ying Wang, Markus Sack, Julia van Eijk, Traute Demirakca, Claudia Falfan-Melgoza, Bertram Krumm, Sandra Dieter, Rainer Spanagel, Falk Kiefer, Karl F Mann, Wolfgang H Sommer, Gabriele Ende, Wolfgang Weber-Fahr
BACKGROUND: Both chronic alcohol consumption and alcohol withdrawal lead to neural tissue damage which partly recovers during abstinence. This study investigated withdrawal-associated changes in glutamatergic compounds, markers of neuronal integrity, and gray matter volumes during acute alcohol withdrawal in the hippocampus, a key region in development and maintenance of alcohol dependence in humans and rats. METHODS: Alcohol-dependent patients (N = 39) underwent magnetic resonance imaging (MRI) and MR spectroscopy (MRS) measurements within 24 hours after the last drink and after 2 weeks of abstinence...
January 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28098945/frequency-of-cnksr2-mutation-in-the-x-linked-epilepsy-aphasia-spectrum
#16
John A Damiano, Rosemary Burgess, Sara Kivity, Tally Lerman-Sagie, Zaid Afawi, Ingrid E Scheffer, Samuel F Berkovic, Michael S Hildebrand
Synaptic proteins are critical to neuronal function in the brain, and their deficiency can lead to seizures and cognitive impairments. CNKSR2 (connector enhancer of KSR2) is a synaptic protein involved in Ras signaling-mediated neuronal proliferation, migration and differentiation. Mutations in the X-linked gene CNKSR2 have been described in patients with seizures and neurodevelopmental deficits, especially those affecting language. In this study, we sequenced 112 patients with phenotypes within the epilepsy-aphasia spectrum (EAS) to determine the frequency of CNKSR2 mutation within this complex set of disorders...
January 18, 2017: Epilepsia
https://www.readbyqxmd.com/read/28098944/validation-of-a-smartphone-based-point-of-care-hemoglobin-assay-for-use-in-dogs
#17
Kate S Farrell, Phillip L Chapman, Lauren A Sullivan
OBJECTIVE: To validate a smartphone-based spectrophotometric assay for point-of-care (POC) measurement of hemoglobin (Hgb) concentration against the standard measurement method in dogs without increases in serum lipemia, hemolysis, or bilirubin. DESIGN: Prospective observational study. SETTING: University teaching hospital. ANIMALS: One hundred thirty-nine dogs that had a CBC and corresponding biochemical profile submitted to the clinical pathology laboratory...
January 18, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28098943/a-survey-of-the-peptide-profile-in-prato-cheese-as-measured-by-maldi-ms-and-capillary-electrophoresis
#18
Débora Parra Baptista, Francisca Diana da Silva Araújo, Marcos Nogueira Eberlin, Mirna Lúcia Gigante
In this study, we describe the characterization of the peptide profile in commercial Prato cheese by matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) and capillary electrophoresis (CE). Ten commercial Prato cheese brands were characterized via their physicochemical composition and subjected to fractionation according to solubility at pH 4.6. The pH 4.6 insoluble fraction was evaluated by CE, whereas MALDI-MS was applied to the fraction soluble at pH 4.6 and in 70% ethanol. CE revealed a characteristic pattern of hydrolysis, with formation of para-κ-casein, hydrolysis of αs1 -casein at the Phe23 - Phe24 bond, and hydrolysis of β-casein...
January 18, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28098942/biomarkers-for-the-detection-of-prenatal-alcohol-exposure-a-review
#19
REVIEW
Heidi Bager, Lars Porskjaer Christensen, Steffen Husby, Lene Bjerregaard
Alcohol exposure during pregnancy can cause adverse effects to the fetus, because it interferes with fetal development, leading to later physical and mental impairment. The most common clinical tool to determine fetal alcohol exposure is maternal self-reporting. However, a more objective and useful method is based on the use of biomarkers in biological specimens alone or in combination with maternal self-reporting. This review reports on clinically relevant biomarkers for detection of prenatal alcohol exposure (PAE)...
January 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28098941/posterior-cortex-epilepsy-surgery-in-childhood-and-adolescence-predictors-of-long-term-seizure-outcome
#20
Georgia Ramantani, Angeliki Stathi, Armin Brandt, Karl Strobl, Susanne Schubert-Bast, Gert Wiegand, Rudolf Korinthenberg, Vera van Velthoven, Josef Zentner, Andreas Schulze-Bonhage, Thomas Bast
OBJECTIVE: We aimed to investigate the long-term seizure outcome of children and adolescents who were undergoing epilepsy surgery in the parietooccipital cortex and determine their predictive factors. METHODS: We retrospectively analyzed the data of 50 consecutive patients aged 11.1 (mean) ± 5.1 (standard deviation) years at surgery. All patients but one had a magnetic resonance imaging (MRI)-visible lesion. Resections were parietal in 40%, occipital in 32%, and parietooccipital in 28% cases; 24% patients additionally underwent a resection of the posterior border of the temporal lobe...
January 18, 2017: Epilepsia
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