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https://www.readbyqxmd.com/read/28340516/markers-of-dietary-protein-intake-are-associated-with-successful-weight-loss-in-the-pounds-lost-trial
#1
G A Bray, D H Ryan, W Johnson, C M Champagne, C M Johnson, J Rood, D A Williamson, F M Sacks
To assess the association of markers for dietary protein intake, measures of dietary adherence and demographic variables with weight loss in the POUNDS Lost study over the first 6 months and again between 6 and 24 months using data from those who completed each period. This is a secondary analysis of pooled data on completers assigned to one of four diets: 65%C/15%P/20%F (AP/LF), 55%C/25%P/20%F (HP/LF), 45%C/15%P/40%F (AP/HF) or 35%C/25%P40%F (HP/HF) in the POUNDS Lost study. Urinary nitrogen excretion, dietary adherence measured by 24-h recall and attendance at sessions, age (above and below 50 years), gender, race/ethnicity and activity by pedometry were analysed...
March 24, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28340498/academic-difficulties-in-children-with-prenatal-alcohol-exposure-presence-profile-and-neural-correlates
#2
Leila Glass, Eileen M Moore, Natacha Akshoomoff, Kenneth Lyons Jones, Edward P Riley, Sarah N Mattson
BACKGROUND: Academic achievement was evaluated in children with heavy prenatal alcohol exposure to determine potential strengths and weaknesses, evaluate the utility of different definitions for identifying low academic performance, and explore the neural correlates that may underlie academic performance. METHODS: Children (8 to 16 years) were assessed using the WIAT-II. Patterns of performance were examined in 2 subject groups: children with heavy prenatal alcohol exposure (n = 67) and controls (n = 61)...
March 24, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28340485/an-approach-for-liposome-immobilization-using-sterically-stabilized-micelles-ssms-as-a-precursor-for-bio-layer-interferometry-based-interaction-studies
#3
Jakob Wallner, Gabriele Lhota, Markus Schosserer, Karola Vorauer-Uhl
Non-fluidic bio-layer interferometry (BLI) has rapidly become a standard tool for monitoring almost all biomolecular interactions in a label-free, real-time and high-throughput manner. High-efficiency screening methods which measure the kinetics of liposomes with a variety of compounds require the immobilization of liposomes. In this work, a method is described for immobilizing liposomes for interaction studies, based on the biophysical principles of this biosensor platform. The immobilization approach includes the loading of DSPE-PEG(2000)-biotin containing sterically stabilized micelles (SSMs) which are restructured in a buffer change step, resulting in an accessible substrate for liposome immobilization...
March 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28340482/the-effect-of-interprofessional-team-based-learning-among-nursing-students-a-quasi-experimental-study
#4
Arkers Kwan Ching Wong, Frances Kam Yuet Wong, Lap Ki Chan, Namkiu Chan, Fraide A Ganotice, Jacqueline Ho
BACKGROUND: Although interprofessional education has received attention in recent years as a means of providing opportunities for health-care professionals to learn with, from and about other disciplines and enhance the quality of patient care, evidence of its effectiveness is limited. Interprofessional team-based learning was introduced to make it possible for students in different healthcare disciplines to interact with each other, and to prepare them to function effectively within a team in their future career...
March 9, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28340479/additive-effects-prevail-the-response-of-biota-to-multiple-stressors-in-an-intensively-monitored-watershed
#5
Alexander Gieswein, Daniel Hering, Christian K Feld
Freshwater ecosystems are impacted by a range of stressors arising from diverse human-caused land and water uses. Identifying the relative importance of single stressors and understanding how multiple stressors interact and jointly affect biology is crucial for River Basin Management. This study addressed multiple human-induced stressors and their effects on the aquatic flora and fauna based on data from standard WFD monitoring schemes. For altogether 1095 sites within a mountainous catchment, we used 12 stressor variables covering three different stressor groups: riparian land use, physical habitat quality and nutrient enrichment...
March 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340460/interactions-between-three-typical-endocrine-disrupting-chemicals-edcs-in-binary-mixtures-exposure-on-myocardial-differentiation-of-mouse-embryonic-stem-cell
#6
Ren Zhou, Wei Cheng, Yan Feng, Hongying Wei, Fan Liang, Yan Wang
In recent years, various kinds of endocrine-disrupting chemicals (EDCs) have been detected in human blood and urine. Thus, it was important to investigate the combined toxicity effect of EDCs. In the present study, we evaluated the individual and combined developmental toxicities of three classic EDCs: perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and bisphenol A (BPA) by embryonic stem cell test (EST). The similarities and differences between combination of same chemical group as well as different chemical groups were investigated in this research...
March 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28340451/the-role-of-drug-drug-interactions-in-prostate-cancer-treatment-focus-on-abiraterone-acetate-prednisone-and-enzalutamide
#7
REVIEW
Marzia Del Re, Stefano Fogli, Lisa Derosa, Francesco Massari, Paul De Souza, Stefania Crucitta, Sergio Bracarda, Daniele Santini, Romano Danesi
Elderly patients with cancer may have comorbidities, each requiring additional pharmacologic treatment. Therefore, the occurrence of pharmacokinetic (PK) and pharmacodynamic (PD) interactions is very likely, and the risk of adverse reactions (ADRs), due to the narrow therapeutic window of anticancer drugs, is increased. Drug-drug interactions (DDIs) may occur in prostate cancer patients due to inhibition by abiraterone of liver cytochrome P450 (CYP)-dependent enzymes CYP2C8 and 2D6, which are involved in the metabolism of approximately 25% of all drugs, and induction by enzalutamide of CYP3A4, 2C9 and 2C19, which metabolize up to 50% of medications...
March 9, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28340417/interfacial-interactions-between-skeletonema-costatum-extracellular-organic-matter-and-metal-oxides-implications-for-ceramic-membrane-filtration
#8
Noor Zaouri, Leonardo Gutierrez, Laure Dramas, Daniel Garces, Jean-Philippe Croue
In the current study, the interfacial interactions between the high molecular weight (HMW) compounds of Skeletonema costatum (SKC) extracellular organic matter (EOM) and ZrO2 or Al2O3, were investigated by atomic force microscopy (AFM). HMW SKC-EOM was rigorously characterized and described as a hydrophilic organic compound mainly comprised of polysaccharide-like structures. Lipids and proteins were also observed, although in lower abundance. HMW SKC-EOM displayed attractive forces during approaching (i.e., leading to jump-to-contact events) and adhesion forces during retracting regime to both metal oxides at all solution conditions tested, where electrostatics and hydrogen bonding were suggested as dominant interacting mechanisms...
March 21, 2017: Water Research
https://www.readbyqxmd.com/read/28340413/design-synthesis-and-biological-evaluation-of-novel-coumarin-based-benzamides-as-potent-histone-deacetylase-inhibitors-and-anticancer-agents
#9
Tooba Abdizadeh, Mohammad Reza Kalani, Khalil Abnous, Zahra Tayarani-Najaran, Bibi Zahra Khashyarmanesh, Rahman Abdizadeh, Razieh Ghodsi, Farzin Hadizadeh
Histone deacetylases (HDACs) are attractive therapeutic targets for the treatment of cancer and other diseases. It has four classes (I-IV), among them especially class I isozyme are involved in promoting tumor cells proliferation, angiogenesis, differentiation, invasion and metastasis and also viable targets for cancer therapeutics. A novel series of coumarin-based benzamides was designed and synthesized as HDAC inhibitors. The cytotoxic activity of the synthesized compounds (8a-u) was evaluated against six human cancer cell lines including HCT116, A2780, MCF7, PC3, HL60 and A549 and a single normal cell line (Huvec)...
March 18, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28340390/the-association-of-eating-performance-and-environmental-stimulation-among-older-adults-with-dementia-in-nursing-homes-a-secondary-analysis
#10
Wen Liu, Ying-Ling Jao, Kristine Williams
BACKGROUND: Nursing home residents with dementia experience increased risk for compromised eating performance due to intrapersonal, interpersonal, and environmental factors. Environmental stimulation is physical, social, and/or sensory stimulation present in the environment that can potentially trigger individuals' emotion or motivate physical reactions. Beyond the personal factors, there is a lack of evidence on how environmental stimulation influences individuals' eating performance at mealtimes...
March 9, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28340389/minilaparotomy-without-general-anesthesia-for-the-treatment-of-sigmoid-volvulus-in-high-risk-patients-a-case-series-of-4-patients
#11
Ernesto L Enrique, Kareem A Hamdy
BACKGROUND: Sigmoid volvulus (SV) is a common cause of large bowel obstruction worldwide. Presenting symptoms can be nonspecific and varied amongst the elderly population, making medical and surgical management challenging. This population is at markedly increase risk of complications and mortality with surgery under general anesthesia. In this case series, we describe 4 cases of sigmoid volvulus in octogenarians. GOALS: To demonstrate that sigmoid colectomy under local anesthesia, with or without intravenous conscious sedation, is feasible and can be done safely and with a low rate of converting to a general anesthetic...
March 2, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28340387/an-exploration-of-the-effect-and-interaction-mechanism-of-bisphenol-a-on-waste-sludge-hydrolysis-with-multi-spectra-isothermal-titration-microcalorimetry-and-molecule-docking
#12
Guangying Hou, Rui Zhang, Xiaoyan Hao, Chunguang Liu
An increasing amount of bisphenol A (BPA) is being produced and used, then discharged into sewage treatment plants and accumulated in sludge or soil, when the sludge is used as fertilizer. Accumulation of BPA in sludge or soil causes poisoning to the enzyme, which affects the biological treatment of sludge and the circulation and conversion of materials in soil. In this research, effect of BPA on sludge hydrolysis is studied from the respect of concentration and components of soluble organic matter in sludge, using three-dimensional fluorescence spectra...
March 10, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28340381/studying-the-adsorption-of-dna-nanostructures-on-graphene-in-the-aqueous-phase-using-molecular-dynamic-simulations
#13
Jixue Sun, Yang Li, Jianping Lin
DNA nanostructures can undergo large structural fluctuations and deviate from their intended configurations. In this work, two model DNA nanostructures (i.e., Nan and Kai) were designed based on the shape of the two Chinese characters of the name of Nankai University, and additional single-stranded DNA fragments were added to interact with graphene. During four 50-ns molecular dynamic simulations in aqueous solution, the DNA nanostructures adsorbed onto graphene demonstrated more stable conformations with lower root mean square deviations and smaller coordinate changes in the z-axis direction than the DNA nanostructures that were not adsorbed onto graphene...
March 9, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28340371/walking-adaptability-assessments-with-the-interactive-walkway-between-systems-agreement-and-sensitivity-to-task-and-subject-variations
#14
Daphne J Geerse, Bert H Coolen, Melvyn Roerdink
The ability to adapt walking to environmental circumstances is an important aspect of walking, yet difficult to assess. The Interactive Walkway was developed to assess walking adaptability by augmenting a multi-Kinect-v2 10-m walkway with gait-dependent visual context (stepping targets, obstacles) using real-time processed markerless full-body kinematics. In this study we determined Interactive Walkway's usability for walking-adaptability assessments in terms of between-systems agreement and sensitivity to task and subject variations...
March 2, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28340357/ruthenium-complexes-with-phenylterpyridine-derivatives-target-cell-membrane-and-trigger-death-receptors-mediated-apoptosis-in-cancer-cells
#15
Zhiqin Deng, Pan Gao, Lianling Yu, Bin Ma, Yuanyuan You, Leung Chan, Chaoming Mei, Tianfeng Chen
Elucidation of the communication between metal complexes and cell membrane may provide useful information for rational design of metal-based anticancer drugs. Herein we synthesized a novel class of ruthenium (Ru) complexes containing phtpy derivatives (phtpy = phenylterpyridine), analyzed their structure-activity relationship and revealed their action mechanisms. The result showed that, the increase in the planarity of hydrophobic Ru complexes significantly enhanced their lipophilicity and cellular uptake...
March 18, 2017: Biomaterials
https://www.readbyqxmd.com/read/28340355/the-human-immunodeficiency-virus-1-asp-rna-promotes-viral-latency-by-recruiting-the-polycomb-repressor-complex-2-and-promoting-nucleosome-assembly
#16
Juan C Zapata, Federica Campilongo, Robert A Barclay, Catherine DeMarino, Maria D Iglesias-Ussel, Fatah Kashanchi, Fabio Romerio
Various epigenetic marks at the HIV-1 5'LTR suppress proviral expression and promote latency. Cellular antisense transcripts known as long noncoding RNAs (lncRNAs) recruit the polycomb repressor complex 2 (PRC2) to gene promoters, which catalyzes trimethylation of lysine 27 on histone H3 (H3K27me3), thus promoting nucleosome assembly and suppressing gene expression. We found that an HIV-1 antisense transcript expressed from the 3'LTR and encoding the antisense protein ASP promotes proviral latency. Expression of ASP RNA reduced HIV-1 replication in Jurkat cells...
March 21, 2017: Virology
https://www.readbyqxmd.com/read/28340354/mechanism-of-substrate-translocation-in-an-alternating-access-transporter
#17
Naomi R Latorraca, Nathan M Fastman, A J Venkatakrishnan, Wolf B Frommer, Ron O Dror, Liang Feng
Transporters shuttle molecules across cell membranes by alternating among distinct conformational states. Fundamental questions remain about how transporters transition between states and how such structural rearrangements regulate substrate translocation. Here, we capture the translocation process by crystallography and unguided molecular dynamics simulations, providing an atomic-level description of alternating access transport. Simulations of a SWEET-family transporter initiated from an outward-open, glucose-bound structure reported here spontaneously adopt occluded and inward-open conformations...
March 23, 2017: Cell
https://www.readbyqxmd.com/read/28340352/human-epistatic-interaction-controls-il7r-splicing-and-increases-multiple-sclerosis-risk
#18
Gaddiel Galarza-Muñoz, Farren B S Briggs, Irina Evsyukova, Geraldine Schott-Lerner, Edward M Kennedy, Tinashe Nyanhete, Liuyang Wang, Laura Bergamaschi, Steven G Widen, Georgia D Tomaras, Dennis C Ko, Shelton S Bradrick, Lisa F Barcellos, Simon G Gregory, Mariano A Garcia-Blanco
Multiple sclerosis (MS) is an autoimmune disorder where T cells attack neurons in the central nervous system (CNS) leading to demyelination and neurological deficits. A driver of increased MS risk is the soluble form of the interleukin-7 receptor alpha chain gene (sIL7R) produced by alternative splicing of IL7R exon 6. Here, we identified the RNA helicase DDX39B as a potent activator of this exon and consequently a repressor of sIL7R, and we found strong genetic association of DDX39B with MS risk. Indeed, we showed that a genetic variant in the 5' UTR of DDX39B reduces translation of DDX39B mRNAs and increases MS risk...
March 23, 2017: Cell
https://www.readbyqxmd.com/read/28340350/a-viral-immunoevasin-controls-innate-immunity-by-targeting-the-prototypical-natural-killer-cell-receptor-family
#19
Oscar A Aguilar, Richard Berry, Mir Munir A Rahim, Johanna J Reichel, Branka Popović, Miho Tanaka, Zhihui Fu, Gautham R Balaji, Timothy N H Lau, Megan M Tu, Christina L Kirkham, Ahmad Bakur Mahmoud, Aruz Mesci, Astrid Krmpotić, David S J Allan, Andrew P Makrigiannis, Stipan Jonjić, Jamie Rossjohn, James R Carlyle
Natural killer (NK) cells play a key role in innate immunity by detecting alterations in self and non-self ligands via paired NK cell receptors (NKRs). Despite identification of numerous NKR-ligand interactions, physiological ligands for the prototypical NK1.1 orphan receptor remain elusive. Here, we identify a viral ligand for the inhibitory and activating NKR-P1 (NK1.1) receptors. This murine cytomegalovirus (MCMV)-encoded protein, m12, restrains NK cell effector function by directly engaging the inhibitory NKR-P1B receptor...
March 23, 2017: Cell
https://www.readbyqxmd.com/read/28340347/rejuvenation-by-therapeutic-elimination-of-senescent-cells
#20
Paul Krimpenfort, Anton Berns
In this issue of Cell, Baar et al. show how FOXO4 protects senescent cell viability by keeping p53 sequestered in nuclear bodies, preventing it from inducing apoptosis. Disrupting this interaction with an all-D amino acid peptide (FOXO4-DRI) restores p53's apoptotic role and ameliorates the consequences of senescence-associated loss of tissue homeostasis.
March 23, 2017: Cell
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