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https://www.readbyqxmd.com/read/28212351/black-box%C3%A2-gastrointestinal%C3%A2-tract-needs%C3%A2-and%C3%A2-prospects%C3%A2-of%C3%A2-gaining%C3%A2-insights%C3%A2-of%C3%A2-fate%C3%A2-of%C3%A2-fat-%C3%A2-protein-%C3%A2-and%C3%A2-starch%C3%A2-in%C3%A2-case%C3%A2-of%C3%A2-exocrine%C3%A2-pancreatic%C3%A2-insufficiency%C3%A2-by%C3%A2-using%C3%A2-fistulated%C3%A2-pigs
#1
REVIEW
Anne Mößeler, Josef Kamphues
Exocrine pancreatic insufficiency (EPI) results in the maldigestion and malabsorption of nutrients. The digestive processes in humans and other monogastric species like rat and pig are characterized by a predominantly enzymatic digestion within the small intestine and microbial fermentation located in the hindgut. For protein, it is doctrine that only prececally absorbed amino acids can be transferred to the amino acid pool of the host, while postileal absorption of nitrogen-containing compounds occurs mainly in the form of ammonia, being a burden rather than a benefit for the organism...
February 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28209166/intra-tumor-heterogeneity-from-a-cancer-stem-cell-perspective
#2
REVIEW
Pramudita R Prasetyanti, Jan Paul Medema
Tumor heterogeneity represents an ongoing challenge in the field of cancer therapy. Heterogeneity is evident between cancers from different patients (inter-tumor heterogeneity) and within a single tumor (intra-tumor heterogeneity). The latter includes phenotypic diversity such as cell surface markers, (epi)genetic abnormality, growth rate, apoptosis and other hallmarks of cancer that eventually drive disease progression and treatment failure. Cancer stem cells (CSCs) have been put forward to be one of the determining factors that contribute to intra-tumor heterogeneity...
February 16, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28208799/microbial-detoxification-of-deoxynivalenol-don-assessed-via-a-lemna-minor-l-bioassay-through-biotransformation-to-3-epi-don-and-3-epi-dom-1
#3
Ilse Vanhoutte, Laura De Mets, Marthe De Boevre, Valdet Uka, José Diana Di Mavungu, Sarah De Saeger, Leen De Gelder, Kris Audenaert
Mycotoxins are toxic metabolites produced by fungi. To mitigate mycotoxins in food or feed, biotransformation is an emerging technology in which microorganisms degrade toxins into non-toxic metabolites. To monitor deoxynivalenol (DON) biotransformation, analytical tools such as ELISA and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) are typically used. However, these techniques do not give a decisive answer about the remaining toxicity of possible biotransformation products. Hence, a bioassay using Lemna minor L...
February 13, 2017: Toxins
https://www.readbyqxmd.com/read/28207389/an-efficient-reconstruction-algorithm-based-on-the-alternating-direction-method-of-multipliers-for-joint-estimation-of-r2-and-off-resonance-in-fmri
#4
Chenxi Hu, Stanley Reeves, Dana Peters, Donald Twieg
R 2 mapping is a useful tool in blood-oxygen-level dependent (BOLD) fMRI due to its quantitative nature. However, like T 2 -weighted imaging, standard R 2 mapping based on multiecho EPI suffers from geometric distortion, due to strong offresonance near the air-tissue interface. Joint mapping of R 2 and off-resonance can correct the geometric distortion and is less susceptible to motion artifacts. Single-shot joint mapping of R 2 and off-resonance is possible with a rosette trajectory due to its frequent sampling of the k-space center...
February 13, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28207387/distortion-correction-in-fetal-epi-using-non-rigid-registration-with-a-laplacian-constraint
#5
Maria Kuklisova Murgasova, Georgia Lockwood-Estrin, Rita G Nunes, Shaihan Malik, Mary Rutherford, Daniel Rueckert, Joseph Hajnal
Geometric distortion induced by the main B0 field disrupts the consistency of fetal EPI data, on which diffusion and functional MRI is based. In this paper we present a novel data-driven method for simultaneous motion and distortion correction of fetal EPI. A motion-corrected and reconstructed T2 weighted ssFSE volume is used as a model of undistorted fetal brain anatomy. Our algorithm interleaves two registration steps: estimation of fetal motion parameters by aligning EPI slices to the model; and deformable registration of EPI slices to slices simulated from the undistorted model to estimate the distortion field...
February 9, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28205605/the-role-of-the-rna-demethylase-fto-fat-mass-and-obesity-associated-and-mrna-methylation-in-hippocampal-memory-formation
#6
Brandon J Walters, Valentina Mercaldo, Colleen J Gillon, Matthew Yip, Rachael L Neve, Frederick M Boyce, Paul W Frankland, Sheena A Josselyn
The formation of long-lasting memories requires coordinated changes in gene expression and protein synthesis (Davis and Squire, 1984; Duvarci et al, 2008; Hernandez and Abel, 2008). Although many studies implicate DNA modifications (DNA methylation, histone modifications) in memory formation, the contributions of RNA modifications remain largely unexplored. Here, we investigated the role of mRNA methylation in hippocampal-dependent memory formation in mice. RNA modifications are highly dynamic and readily reversible (Jia et al, 2013)...
February 16, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28205251/multishot-echo-planar-mreit-for-fast-imaging-of-conductivity-current-density-and-electric-field-distributions
#7
Munish Chauhan, Rohini Vidya Shankar, Neeta Ashok Kumar, Vikram D Kodibagkar, Rosalind Sadleir
PURPOSE: Magnetic resonance electrical impedance tomography (MREIT) sequences typically use conventional spin or gradient echo-based acquisition methods for reconstruction of conductivity and current density maps. Use of MREIT in functional and electroporation studies requires higher temporal resolution and faster sequences. Here, single and multishot echo planar imaging (EPI) based MREIT sequences were evaluated to see whether high-quality MREIT phase data could be obtained for rapid reconstruction of current density, conductivity, and electric fields...
February 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28202385/long-term-consequences-of-disrupting-adenosine-signaling-during-embryonic-development
#8
REVIEW
Scott A Rivkees, Christopher C Wendler
There is growing evidence that disruption in the prenatal environment can have long-lasting effects on an individual's health in adulthood. Research on the fetal programming of adult diseases, including cardiovascular disease, focuses on epi-mutations, which alter the normal pattern of epigenetic factors such as DNA methylation, miRNA expression, or chromatin modification, rather than traditional genetic alteration. Thus, understanding how in utero chemical exposures alter epigenetics and lead to adult disease is of considerable public health concern...
February 12, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28199041/feasibility-of-accelerated-simultaneous-multislice-diffusion-weighted-mri-of-the-prostate
#9
Jakob Weiss, Petros Martirosian, Jana Taron, Ahmed E Othman, Thomas Kuestner, Michael Erb, Jens Bedke, Fabian Bamberg, Konstantin Nikolaou, Mike Notohamiprodjo
PURPOSE: To assess the feasibility of simultaneous multislice (SMS) single-shot echo-planar-imaging (EPI) for accelerated diffusion-weighted imaging (DWI) of the prostate. MATERIALS AND METHODS: For phantom measurements a dedicated DWI phantom with different sucrose concentrations was used. In addition, 10 volunteers and 16 patients with suspected prostate cancer were examined for in vivo measurements. All examinations were performed with a 3T magnetic resonance imaging (MRI) system...
February 15, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28199000/overexpression-of-pregnane-x-and-glucocorticoid-receptors-and-the-regulation-of-cytochrome-p450-in-human-epileptic-brain-endothelial-cells
#10
Chaitali Ghosh, Mohammed Hossain, Jesal Solanki, Imad M Najm, Nicola Marchi, Damir Janigro
OBJECTIVE: Recent evidence suggests a metabolic contribution of cytochrome P450 enzymes (CYPs) to the drug-resistant phenotype in human epilepsy. However, the upstream molecular regulators of CYP in the epileptic brain remain understudied. We therefore investigated the expression and function of pregnane xenobiotic (PXR) and glucocorticoid (GR) nuclear receptors in endothelial cells established from post-epilepsy surgery brain samples. METHODS: PXR/GR localization was evaluated by immunohistochemistry in specimens from subjects who underwent temporal lobe resections to relieve drug-resistant seizures...
February 15, 2017: Epilepsia
https://www.readbyqxmd.com/read/28197653/does-selective-pleural-irradiation-of-malignant-pleural-mesothelioma-allow-radiation-dose-escalation-a-planning-study
#11
A Botticella, G Defraene, K Nackaerts, C Deroose, J Coolen, P Nafteux, B Vanstraelen, S Joosten, L A W Michiels, S Peeters, D De Ruysscher
BACKGROUND: After lung-sparing radiotherapy for malignant pleural mesothelioma (MPM), local failure at sites of previous gross disease represents the dominant form of failure. Our aim is to investigate if selective irradiation of the gross pleural disease only can allow dose escalation. MATERIALS AND METHODS: In all, 12 consecutive stage I-IV MPM patients (6 left-sided and 6 right-sided) were retrospectively identified and included. A magnetic resonance imaging-based pleural gross tumor volume (GTV) was contoured...
February 14, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28196295/association-of-pre-transplant-kidney-function-with-outcomes-after-lung-transplantation
#12
Amit Banga, Manish Mohanka, Jessica Mullins, Srinivas Bollineni, Vaidehi Kaza, Fernando Torres, Bekir Tanriover
PURPOSE: There is a lack of data regarding the independent association of pre-transplant kidney function with early and late outcomes among lung transplant (LT) recipients. METHODS: We queried the UNOS database for adult patients (≥ 18 years of age) undergoing LT between 1987 and 2013. Glomerular filtration rate (GFR) was estimated using the Modification of diet in renal disease (MDRD) and the Chronic kidney disease epidemiology collaboration (CKD-EPI) equations...
February 14, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28194491/-merkel-cell-carcinoma-cutaneous-manifestation-of-a-highly-malignant-pre-pro-b%C3%A2-cell-neoplasia-novel-concept-about-the-cellular-origin-of-merkel-cell-carcinoma
#13
REVIEW
C M Sauer, E Chteinberg, D Rennspiess, A K Kurz, A Zur Hausen
Merkel cell carcinoma (MCC) is a relatively rare but highly malignant non-melanoma skin cancer of the elderly and immunosuppressed patients. The discovery of the Merkel cell polyomavirus (MCPyV) in 2008 significantly impacted the understanding of the etiopathogenesis of MCC. MCPyV is clonally integrated into the MCC genome and approximately 80% of MCC are MCPyV-positive. Recent results of clinical trials using blockade of the PD-1 immune modulatory pathway are promising for the future treatment of MCC. Despite this major progress of the past few years, the cellular origin of MCC still remains obscure...
February 13, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28193183/factors-associated-with-the-length-of-delay-with-tuberculosis-diagnosis-and-treatment-among-adult-tuberculosis-patients-attending-at-public-health-facilities-in-gondar-town-northwest-ethiopia
#14
Selamsew Bogale, Ermias Diro, Atsede Mazengia Shiferaw, Melaku Kindie Yenit
BACKGROUND: Early diagnosis and prompt treatment is essential for an effective tuberculosis (TB) control program. However, significant proportion of cases remains undiagnosed and untreated. Delay in diagnosis and treatment increases transmission. Hence, the study assessed the length of delay and associated factors with tuberculosis diagnosis and treatment among adults attending public health facilities in Gondar town, Northwest Ethiopia. METHOD: An institution based cross-sectional study was conducted from February to May, 2016...
February 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28191020/compliance-with-standard-precautions-and-associated-factors-among-healthcare-workers-in-gondar-university-comprehensive-specialized-hospital-northwest-ethiopia
#15
Tariku Gebre Haile, Eshetu Haileselassie Engeda, Abdella Amano Abdo
Background. In many studies, compliance with standard precautions among healthcare workers was reported to be inadequate. Objective. The aim of this study was to assess compliance with standard precautions and associated factors among healthcare workers in northwest Ethiopia. Methods. An institution-based cross-sectional study was conducted from March 01 to April 30, 2014. Simple random sampling technique was used to select participants. Data were entered into Epi info 3.5.1 and were exported to SPSS version 20...
2017: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/28190672/-bibliometric-analysis-of-iberpoc-and-epi-scan-studies-contribution-of-the-smoking-variable-on-the-iberpoc-study
#16
J I de Granda-Orive, A Alonso-Arroyo, D López-Padilla, G Segrelles-Calvo, C A Jiménez-Ruiz, S Solano-Reina
OBJECTIVES: The aim of this study was to perform a bibliometric analysis of EPI-SCAN and IBERPOC studies using the Science Citation Index and Scopus databases, and to determine the overall impact with the impact of smoking on IBERPOC as a secondary objective. METHOD: A general searching was conducted in Science Citation Index-Expanded through the Web of Science (WoS) (Thomson Reuters) platform and Scopus on 23 March 2015. The search strategy included the terms "iberpoc" OR "episcan" was performed on 15 October 2015...
February 9, 2017: Semergen
https://www.readbyqxmd.com/read/28187472/-epi-bowman-keratectomy-clinical-evaluation-of-a-new-method-of-surface-ablation
#17
S Taneri, S Kießler, A Rost, T Schultz, M Elling, B Dick
Purpose A new device for epithelial abrasion before excimer laser surface ablation or corneal cross-linking (CXL) has recently been introduced (Epi-Clear™, Orca Surgical, Kiryat-Shmona, Israel). We have reviewed the literature on the clinical results, potential benefits and drawbacks of this instrument, compared to other methods of epithelial removal. Method Literature search for "Epi-Bowman Keratectomy", "Epi-clear", and "Epikeratome" yielded 1 peer-review publication, 1 non-peer-review publication, 18 posters and presentations at international conferences (European Society of Cataract and Refractive Surgeons [ESCRS] and American Society of Cataract and Refractive Surgery [ASCRS]) on the use of the Epi-Clear™ device before surface ablation, 2 posters on the use of Epi-Clear before corneal crosslinking and 1 presentation on the experimental use of Epi-Clear for removal of a pterygium...
February 10, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28187233/a-comparison-of-cystatin-c-concentrations-between-patients-with-chronic-interstitial-nephritis-and-glomerular-diseases
#18
Nicolas Roberto Robles, Candido Mena, Edgar Chavez, Miguel Angel Bayo, Boris Gonzalez Candia, Antonio Cidoncha, Juan Lopez Gomez, Juan Jose Cubero
AIMS: Cystatin C have shown to be a renal function parameter with higher sensitivity and specificity than serum creatinine. In tubular diseases, cystatin C degradation and an increase in its urinary elimination would be observed. We have tried to define if different kinds of kidney diseases may significantly affect the serum levels of cystatin C. DESIGN AND METHODS: Four hundred and four patients were studied: 249 men and 155 women, mean age was 64.3±10.1 years...
February 10, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28185822/barriers-and-strategies-to-improve-influenza-vaccination-in-pakistan
#19
Muhammad Junaid Farrukh, Long Chiau Ming, Syed Tabish Razi Zaidi, Tahir Mehmood Khan
Influenza vaccination is strongly recommended by World Health Organisation on a yearly basis. The rate of immunization in Pakistan is suboptimal. High cost, traditional norms, customs and low levels of education in Pakistan are preventing people from getting vaccinated. It is timely to include influenza vaccination in the expanded programme on immunization (EPI), which is a disease prevention programme aiming to eradicate preventable diseases through subsidized or free immunization. The Ministry of National Health Services, Regulation and Coordination, Government of Pakistan should launch a national influenza vaccine policy in view of this current situation and oversee its implementation...
February 6, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28185433/model-based-iterative-reconstruction-for-single-shot-epi-at-7t
#20
Uten Yarach, Myung-Ho In, Itthi Chatnuntawech, Berkin Bilgic, Frank Godenschweger, Hendrik Mattern, Alessandro Sciarra, Oliver Speck
PURPOSE: To describe a model-based reconstruction strategy for single-shot echo planar imaging (EPI) that intrinsically accounts for k-space nonuniformity, Nyquist ghosting, and geometric distortions during rather than before or after image reconstruction. METHODS: Ramp sampling and inhomogeneous B0 field-induced distortion cause the EPI samples to lie on a non-Cartesian grid, thus requiring the nonuniform fast Fourier transform. Additionally, a 2D Nyquist ghost phase correction without the need for extra navigator acquisition is included in the proposed reconstruction...
February 10, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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