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https://www.readbyqxmd.com/read/28636230/quantification-of-fatty-acids-in-erythrocytes-and-plasma-by-fast-gas-chromatography
#1
Cristina Cruz-Hernandez, Sagar K Thakkar, Isabelle Masserey-Elmelegy, William Bousi, Patric Fontannaz, Francesca Giuffrida
As a result of the heterogeneous nature of lipid classes in complex biological matrices such as plasma and erythrocytes, it is imperative to have a robust and validated methodology for fatty acid quantification. The effective method presented here combines available methodology of fast gas chromatography and an improvement of the sample preparation methodology before injection into the gas chromatograph. This methodology ensures complete transesterification and quantification of total and individual fatty acids (and not only in relative amounts) by addition of internal standards...
June 21, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28636211/resolution-of-donor-non-alcoholic-fatty-liver-disease-following-liver-transplantation
#2
Andrew D Posner, Samuel T Sultan, Norann A Zaghloul, William S Twaddell, David A Bruno, Steven I Hanish, William R Hutson, Laci Hebert, Rolf N Barth, John C LaMattina
INTRODUCTION: Transplant surgeons conventionally select against livers displaying high degrees (>30%) of macrosteatosis (MaS), out of concern for primary non-function or severe graft dysfunction. As such, there is relatively limited experience with such livers, and the natural history remains incompletely characterized. We present our experience of transplanted livers with high degrees of MaS and microsteatosis (MiS), with a focus on the histopathologic and clinical outcomes. METHODS: 29 cases were identified with liver biopsies available from both the donor and the corresponding liver transplant recipient...
June 21, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28636199/widespread-occurrence-and-potential-for-biodegradation-of-bioactive-contaminants-in-congaree-national-park-usa
#3
Paul M Bradley, William A Battaglin, Jimmy M Clark, Frank Henning, Michelle L Hladik, Luke R Iwanowicz, Celeste A Journey, Jeffrey W Riley, Kristin M Romanok
Organic contaminants with designed molecular bioactivity, such as pesticides and pharmaceuticals, originate from human and agricultural sources, occur frequently in surface waters, and threaten the structure and function of aquatic and terrestrial ecosystems. Congaree National Park in South Carolina (USA) is a vulnerable park unit due to its location downstream of multiple urban and agricultural contaminant sources and its hydrologic setting, being composed almost entirely of floodplain and aquatic environments...
June 21, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28636099/spectators-or-participants-how-can-setac-become-more-engaged-in-international-climate-change-research-programs
#4
Ralph G Stahl, Jennifer L Stauber, William H Clements
Environmental toxicologists and chemists have been crucial to evaluating the chemical fate and toxicological effects of environmental contaminants, including chlorinated pesticides, before and after Rachel Carson's publication of Silent Spring in 1962. Like chlorinated pesticides previously, global climate change is widely considered to be one of the most important environmental challenges of our time. Over the past 30 yr, climate scientists and modelers have shown that greenhouse gases such as CO2 and CH4 cause radiative forcing (climate forcing) and lead to increased global temperatures...
June 21, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28636093/introspection-plays-an-early-role-in-children-s-explicit-theory-of-mind-development
#5
Christopher R Gonzales, William V Fabricius, Anne S Kupfer
This study assessed children's (N = 236) ability to introspect the mental states of seeing and knowing relative to their ability to attribute each state to others. Children could introspect seeing 10 months before they could introspect knowing. Two- and 3-year-olds correctly reported their own seeing states, whereas 3- and 4-year-olds correctly reported their own knowing states. For each mental state, there was a 7-month difference before children could correctly attribute that state to another. These findings indicate that knowing is more difficult to introspect than seeing and that the ability to introspect each mental state emerges prior to the ability to correctly attribute them to others...
June 21, 2017: Child Development
https://www.readbyqxmd.com/read/28636070/development-of-a-population-based-microsimulation-model-of-body-mass-index
#6
Deirdre Hennessy, Rochelle Garner, William M Flanagan Ron Wall And Claude Nadeau M Flanagan, Ron Wall, Claude Nadeau
BACKGROUND: The increasing prevalence of overweight and obesity has necessitated the development of body mass index (BMI) projection models such as the POpulation HEalth Model (POHEM). This study describes the POHEM-BMI model, a microsimulation tool that can be used to support evidence-based health policy making for obesity reduction. DATA AND METHODS: The National Population Health Survey, the Canadian Community Health Survey (CCHS), and the Canadian Health Measures Survey (CHMS) were used to develop and validate a predictive model of BMI for adults and childhood BMI history...
June 21, 2017: Health Reports
https://www.readbyqxmd.com/read/28636005/mass-mobility-and-ms-n-measurements-of-single-ions-using-charge-detection-mass-spectrometry
#7
Andrew G Elliott, Conner C Harper, Haw-Wei Lin, Evan R Williams
Charge detection mass spectrometry is used to measure the mass, charge, MS(n) and mobility of an individual ion produced by electrospray ionization of a 8 MDa polyethylene glycol sample. The charge detection mass spectrometer is an electrostatic ion trap that uses cone electrodes and a single tube detector and can detect ions for up to the full trapping time of 4.0 s. The time-domain signal induced on the detector tube by a single multiply charged ion can be complex owing to sequential fragmentation of the original precursor ion as well as increasing oscillation frequencies of the single ion owing to collisions with background gas that reduce the kinetic energy of the ion inside the trap...
June 21, 2017: Analyst
https://www.readbyqxmd.com/read/28635666/host-adaptation-of-soybean-dwarf-virus-following-serial-passages-on-pea-pisum-sativum-and-soybean-glycine-max
#8
Bin Tian, Frederick E Gildow, Andrew L Stone, Diana J Sherman, Vernon D Damsteegt, William L Schneider
Soybean Dwarf Virus (SbDV) is an important plant pathogen, causing economic losses in soybean. In North America, indigenous strains of SbDV mainly infect clover, with occasional outbreaks in soybean. To evaluate the risk of a US clover strain of SbDV adapting to other plant hosts, the clover isolate SbDV-MD6 was serially transmitted to pea and soybean by aphid vectors. Sequence analysis of SbDV-MD6 from pea and soybean passages identified 11 non-synonymous mutations in soybean, and six mutations in pea. Increasing virus titers with each sequential transmission indicated that SbDV-MD6 was able to adapt to the plant host...
June 21, 2017: Viruses
https://www.readbyqxmd.com/read/28635378/people-with-autism-spectrum-conditions-make-more-consistent-decisions
#9
George D Farmer, Simon Baron-Cohen, William J Skylark
People with autism spectrum conditions (ASC) show reduced sensitivity to contextual stimuli in many perceptual and cognitive tasks. We investigated whether this also applies to decision making by examining adult participants' choices between pairs of consumer products that were presented with a third, less desirable "decoy" option. Participants' preferences between the items in a given pair frequently switched when the third item in the set was changed, but this tendency was reduced among individuals with ASC, which indicated that their choices were more consistent and conventionally rational than those of control participants...
June 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28635342/healthcare-costs-in-psoriasis-and-psoriasis-subgroups-over-time-following-psoriasis-diagnosis
#10
Sarah Al Sawah, Shonda A Foster, Orin M Goldblum, William N Malatestinic, Baojin Zhu, Nianwen Shi, Xue Song, Steven R Feldman
AIMS: To quantify healthcare costs in patients with psoriasis overall and, in psoriasis patient subgroups, by level of disease severity, presence or absence of psoriatic arthritis, or use of biologics. METHODS: Administrative data from Truven Health Analytics MarketScan Research Database were used to select adult patients with psoriasis from January 2009 to January 2014. The first psoriasis diagnosis was set as the index date. Patients were required to have ≥6 months of continuous enrollment with medical and pharmacy benefits pre-index and ≥12 months post-index...
June 21, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28634793/arsenic-sorption-by-red-mud-modified-biochar-produced-from-rice-straw
#11
Chuan Wu, Liu Huang, Sheng-Guo Xue, Yu-Ying Huang, William Hartley, Meng-Qian Cui, Ming-Hung Wong
Red mud-modified biochar (RM-BC) has been produced to be utilized as a novel adsorbent to remove As because it can effectively combine the beneficial features of red mud (rich metal oxide composition and porous structure) and biochar (large surface area and porous structure properties). SEM-EDS and XRD analyses demonstrated that red mud had loaded successfully on the surface of biochar. With the increasing of pH in solution, arsenate (As(V)) adsorption on RM-BC decreased while arsenite (As(III)) increased. Arsenate adsorption kinetics process on RM-BC fitted the pseudo-second-order model, while that of As(III) favored the Elovich model...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634500/stroke-performance-measures-do-not-predict-functional-outcome
#12
Eric E Adelman, Lynda D Lisabeth, Melinda A Smith, Jonggyu Baek, Erin C Case, Brisa N Sánchez, James F Burke, Lesli E Skolarus, Darin B Zahuranec, William J Meurer, Devin L Brown, Kevin A Kerber, Deborah A Levine, Nelda M Garcia, Morgan S Campbell, Lewis B Morgenstern
BACKGROUND AND PURPOSE: Poststroke functional outcome is critical to stroke survivors. We sought to determine whether adherence to current stroke performance measures is associated with better functional outcome 90 days after an ischemic stroke. METHODS: Utilizing the Brain Attack Surveillance in Corpus Christi cohort, we examined adherence to 7 ischemic stroke performance measures from February 2009 to June 2012. Adherence to the measures was analyzed in aggregate using a binary defect-free score and an opportunity score, representing the proportion of eligible measures met...
July 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28634467/brain-network-activation-technology-does-not-assist-with-concussion-diagnosis-and-return-to-play-in-football-athletes
#13
Steven P Broglio, Richelle Williams, Andrew Lapointe, Ashley Rettmann, Brandon Moore, Sean K Meehan, James T Eckner
BACKGROUND: Concussion diagnosis and management remains a largely subjective process. This investigation sought to evaluate the utility of a novel neuroelectric measure for concussion diagnosis and return to play decision-making. HYPOTHESIS: Brain Network Activation (BNA) scores obtained within 72-h of injury will be lower than the athlete's preseason evaluation and that of a matched control athlete; and the BNA will demonstrate ongoing declines at the return to play and post-season time points, while standard measures will have returned to pre-injury and control athlete levels...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28634438/computational-models-of-anterior-cingulate-cortex-at-the-crossroads-between-prediction-and-effort
#14
Eliana Vassena, Clay B Holroyd, William H Alexander
In the last two decades the anterior cingulate cortex (ACC) has become one of the most investigated areas of the brain. Extensive neuroimaging evidence suggests countless functions for this region, ranging from conflict and error coding, to social cognition, pain and effortful control. In response to this burgeoning amount of data, a proliferation of computational models has tried to characterize the neurocognitive architecture of ACC. Early seminal models provided a computational explanation for a relatively circumscribed set of empirical findings, mainly accounting for EEG and fMRI evidence...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28634435/the-clinical-uses-of-electrocochleography
#15
REVIEW
William P Gibson
The clinical uses of electrocochleography are reviewed with some technical notes on the apparatus needed to get clear recordings under different conditions. Electrocochleography can be used to estimate auditory thresholds in difficult to test children and a golf club electrode is described. The same electrode can be used to obtain electrical auditory brainstem responses (EABR). Diagnostic testing in the clinic can be performed with a transtympanic needle electrode, and a suitable disposable monopolar electrode is described...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28634373/an-assessment-of-mobile-predator-populations-along-shallow-and-mesophotic-depth-gradients-in-the-hawaiian-archipelago
#16
Jacob Asher, Ivor D Williams, Euan S Harvey
Large-bodied coral reef roving predators (sharks, jacks, snappers) are largely considered to be depleted around human population centers. In the Hawaiian Archipelago, supporting evidence is primarily derived from underwater visual censuses in shallow waters (≤30 m). However, while many roving predators are present or potentially more abundant in deeper strata (30-100 m+), distributional information remains sparse. To partially fill that knowledge gap, we conducted surveys in the remote Northwestern Hawaiian Islands (NWHI) and populated Main Hawaiian Islands (MHI) from 2012-2014 using baited remote underwater stereo-video...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634293/intrinsic-map-dynamics-exploration-for-uncharted-effective-free-energy-landscapes
#17
Eliodoro Chiavazzo, Roberto Covino, Ronald R Coifman, C William Gear, Anastasia S Georgiou, Gerhard Hummer, Ioannis G Kevrekidis
We describe and implement a computer-assisted approach for accelerating the exploration of uncharted effective free-energy surfaces (FESs). More generally, the aim is the extraction of coarse-grained, macroscopic information from stochastic or atomistic simulations, such as molecular dynamics (MD). The approach functionally links the MD simulator with nonlinear manifold learning techniques. The added value comes from biasing the simulator toward unexplored phase-space regions by exploiting the smoothness of the gradually revealed intrinsic low-dimensional geometry of the FES...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28634284/co-administration-of-rankl-and-ctla4-antibodies-enhances-lymphocyte-mediated-anti-tumor-immunity-in-mice
#18
Elizabeth Ahern, Heidi Harjunpaa, Deborah Barkauskas, Stacey Allen, Kazuyoshi Takeda, Hideo Yagita, David Wyld, William C Dougall, Michele W L Teng, Mark J Smyth
Purpose: Novel partners for established immune checkpoint inhibitors in the treatment of cancer are needed to address the problems of primary and acquired resistance. The efficacy of combination RANKL and CTLA4 blockade in anti-tumor immunity has been suggested by recent case reports in melanoma. Here we provide a rationale for this combination in mouse models of cancer. <br />Experimental Design: The efficacy and mechanism of a combination of RANKL and CTLA4 blockade was examined by tumor infiltrating lymphocyte analysis, tumor growth and metastasis using a variety of neutralizing antibodies and gene-targeted mice...
June 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28634199/characterising-cis-regulatory-variation-in-the-transcriptome-of-histologically-normal-and-tumour-derived-pancreatic-tissues
#19
Mingfeng Zhang, Soren Lykke-Andersen, Bin Zhu, Wenming Xiao, Jason W Hoskins, Xijun Zhang, Lauren M Rost, Irene Collins, Martijn van de Bunt, Jinping Jia, Hemang Parikh, Tongwu Zhang, Lei Song, Ashley Jermusyk, Charles C Chung, Bin Zhu, Weiyin Zhou, Gail L Matters, Robert C Kurtz, Meredith Yeager, Torben Heick Jensen, Kevin M Brown, Halit Ongen, William R Bamlet, Bradley A Murray, Mark I McCarthy, Stephen J Chanock, Nilanjan Chatterjee, Brian M Wolpin, Jill P Smith, Sara H Olson, Gloria M Petersen, Jianxin Shi, Laufey Amundadottir
OBJECTIVE: To elucidate the genetic architecture of gene expression in pancreatic tissues. DESIGN: We performed expression quantitative trait locus (eQTL) analysis in histologically normal pancreatic tissue samples (n=95) using RNA sequencing and the corresponding 1000 genomes imputed germline genotypes. Data from pancreatic tumour-derived tissue samples (n=115) from The Cancer Genome Atlas were included for comparison. RESULTS: We identified 38 615 cis-eQTLs (in 484 genes) in histologically normal tissues and 39 713 cis-eQTL (in 237 genes) in tumour-derived tissues (false discovery rate <0...
June 20, 2017: Gut
https://www.readbyqxmd.com/read/28634193/design-improvements-for-personal-protective-equipment-used-in-ebola-and-other-epidemic-outbreaks
#20
Margaret Glancey, Patience Osei, William Alexander Patterson, Matthew Petney, Laura Scavo, Chandrakant Ruparelia, Soumyadipta Acharya, Youseph Yazdi
No abstract text is available yet for this article.
June 20, 2017: Global Health, Science and Practice
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