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https://www.readbyqxmd.com/read/28926171/biliary-reconstructive-techniques-and-associated-anatomic-variants-in-adult-living-donor-liver-transplants-the-a2all-experience
#1
Talia B Baker, Michael A Zimmerman, Nathan P Goodrich, Benjamin Samstein, Elizabeth A Pomfret, James J Pomposelli, Brenda W Gillespie, Carl L Berg, Jean C Emond, Robert M Merion
INTRODUCTION: Living donor liver transplantation (LDLT) is a technically demanding endeavor, requiring command of the complex anatomy of partial liver grafts. We examined the influence of anatomic variation and reconstruction technique on surgical outcomes and graft survival in the nine-center A2ALL Study. METHODS: Data from 272 adult LDLT recipients (2011-2015) included details on anatomic characteristics and types of intraoperative biliary reconstruction. Associations were tested between reconstruction technique and complications, which included first biliary complication ([BC]; leak, stricture, or biloma) and first vascular complication (hepatic artery thrombosis [HAT] or portal vein thrombosis [PVT])...
September 19, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28925404/ing5-activity-in-self-renewal-of-glioblastoma-stem-cells-via-calcium-and-follicle-stimulating-hormone-pathways
#2
F Wang, A Y Wang, C Chesnelong, Y Yang, A Nabbi, S Thalappilly, V Alekseev, K Riabowol
Stem cell-like brain tumor initiating cells (BTICs) cause recurrence of glioblastomas, with BTIC 'stemness' affected by epigenetic mechanisms. The ING family of epigenetic regulators (ING1-5) function by targeting histone acetyltransferase (HAT) or histone deacetylase complexes to the H3K4me3 mark to alter histone acetylation and subsequently, gene expression. Here we find that ectopic expression of ING5, the targeting subunit of HBO1, MOZ and MORF HAT complexes increases expression of the Oct4, Olig2 and Nestin stem cell markers, promotes self-renewal, prevents lineage differentiation and increases stem cell pools in BTIC populations...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28910568/network-of-phosphatases-and-hdac-complexes-at-repressed-chromatin
#3
I J de Castro, H A Amin, V Vinciotti, P Vagnarelli
Tight regulation of gene expression is achieved by a variety of protein complexes that selectively bind chromatin, modify it and change its transcription competency. Histone acetylases (HATs) and deacetylases (HDACs) play an important role in this process. They can generate transcriptionally active or inactive chromatin through the addition (HATs) or removal (HDACs) of acetyl groups on histones, respectively. Repo-Man is a Protein Phosphatase 1 targeting subunit that accumulates on chromosomes during mitotic exit and mediates the removal of mitotic histone H3 phosphorylations...
September 14, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28900709/pretransplant-intra-arterial-liver-directed-therapy-does-not-increase-the-risk-of-hepatic-arterial-complications-in-liver-transplantation-a-single-center-10-year-experience
#4
Joseph R Kallini, Ahmed Gabr, Rehan Ali, Nadine Abouchaleh, Ahsun Riaz, Talia Baker, Laura Kulik, Juan Caicedo, Riad Salem, Robert J Lewandowski
PURPOSE: To investigate the association between pretransplant intra-arterial liver-directed therapy (IAT) for hepatocellular carcinoma (HCC) and hepatic arterial complications (HAC) in orthotopic liver transplantation (OLT) [namely hepatic artery thrombosis (HAT) and/or the need for hepatic arterial conduit]. METHODS: A total of 175 HCC patients (mean age: 60 years) underwent IAT with either transarterial chemoembolization or yttrium-90 (90Y) transarterial radioembolization prior to OLT between 2003 and 2013...
September 12, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28895516/meyerozyma-amylolytica-sp-nov-from-temperate-deciduous-trees-and-the-transfer-of-five-candida-species-to-the-genus-meyerozyma
#5
Andrey M Yurkov, Dénes Dlauchy, Gábor Péter
In the course of two independent studies three yeasts have been isolated from temperate deciduous trees in Hungary and Germany. Analyses of nucleotide sequences of D1/D2 domains of the 26S rRNA gene (LSU) suggested that these strains belong to the Meyerozyma clade in Debaryomycetaceae (Saccharomycetales). The phylogenetic analysis of a concatenated alignment of the ITS region and LSU gene sequences confirmed the placement of the three strains in the Meyerozyma clade close to Candida elateridarum. If mixed in proper combinations, the strains formed one to two hat shaped ascospores in deliquescent asci...
September 12, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28894190/novel-detection-of-post-translational-modifications-in-human-monocyte-derived-dendritic-cells-after-chronic-alcohol-exposure-role-of-inflammation-regulator-h4k12ac
#6
Tiyash Parira, Gloria Figueroa, Alejandra Laverde, Gianna Casteleiro, Mario E Gomez Hernandez, Francisco Fernandez-Lima, Marisela Agudelo
Previous reports on epigenetic mechanisms involved in alcohol abuse have focus on hepatic and neuronal regions, leaving the immune system and specifically monocyte-derived dendritic cells (MDDCs) understudied. Our lab has previously shown histone deacetylases are modulated in cells derived from alcohol users and after in vitro acute alcohol treatment of human MDDCs. In the current study, we developed a novel screening tool using matrix assisted laser desorption ionization-fourier transform-ion cyclotron resonance mass spectrometry (MALDI-FT-ICR MS) and single cell imaging flow cytometry to detect post-translational modifications (PTMs) in human MDDCs due to chronic alcohol exposure...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28888148/hypoglycemia-awareness-among-insulin-treated-patients-with-diabetes-in-malaysia-a-cohort-subanalysis-of-the-hat-study
#7
Zanariah Hussein, Nor Azmi Kamaruddin, Siew Pheng Chan, Anand Jain, Shweta Uppal, Wan Mohamad Wan Bebakar
AIMS: The present Malaysian cohort analysis determined the prevalence of hypoglycemia among patients with type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM) attending primary care- or hospital-based diabetes clinics in Malaysia and their awareness of the symptoms of hypoglycemia. METHODS: The Hypoglycemia Assessment Tool (HAT) study was a non-interventional, 6-month retrospective and 4-week prospective analysis of hypoglycemic events in 24 countries, using self-assessment questionnaires and diaries among patients with T1DM/T2DM aged ≥18years, using insulin for >12months...
August 14, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28887412/enzymatic-modules-of-the-saga-chromatin-modifying-complex-play-distinct-roles-in-drosophila-gene-expression-and-development
#8
Xuanying Li, Christopher W Seidel, Leanne T Szerszen, Jeffrey J Lange, Jerry L Workman, Susan M Abmayr
The Spt-Ada-Gcn5-acetyltransferase (SAGA) chromatin-modifying complex is a transcriptional coactivator that contains four different modules of subunits. The intact SAGA complex has been well characterized for its function in transcription regulation and development. However, little is known about the roles of individual modules within SAGA and whether they have any SAGA-independent functions. Here we demonstrate that the two enzymatic modules of Drosophila SAGA are differently required in oogenesis. Loss of the histone acetyltransferase (HAT) activity blocks oogenesis, while loss of the H2B deubiquitinase (DUB) activity does not...
September 8, 2017: Genes & Development
https://www.readbyqxmd.com/read/28882920/the-hat-trick-programme-for-improving-physical-activity-healthy-eating-and-connectedness-among-overweight-inactive-men-study-protocol-of-a-pragmatic-feasibility-trial
#9
Cristina M Caperchione, Joan L Bottorff, John L Oliffe, Steven T Johnson, Kate Hunt, Paul Sharp, Kayla M Fitzpatrick, Ryley Price, S Larry Goldenberg
INTRODUCTION: Physical activity, healthy eating and maintaining a healthy weight are associated with reduced risk of cardiovascular disease, type 2 diabetes and cancer and with improved mental health. Despite these benefits, many men do not meet recommended physical activity guidelines and have poor eating behaviours. Many health promotion programmes hold little appeal to men and consequently fail to influence men's health practices. HAT TRICK was designed as a 12-week face-to-face, gender-sensitised intervention for overweight and inactive men focusing on physical activity, healthy eating and social connectedness and was delivered in collaboration with a major junior Canadian ice hockey team (age range 16-20 years)...
September 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28882400/histone-modifications-a-review-about-the-presence-of-this-epigenetic-phenomenon-in-carcinogenesis
#10
REVIEW
Emanuely Silva Chrun, Filipe Modolo, Filipe Ivan Daniel
Among the epigenetic changes, histone acetylation has been recognized as a fundamental process that strongly affects gene expression regulation. Disrupt of this phenomenon has been linked to carcinogenesis. In this review, we analysed studies reporting the process of histone modification, the enzymes associated and affected genes concerning human malignancies and histone enzyme inhibitor drugs used in cancer treatment. Variable degrees of expression of HDACs (histone deacetylases) and HATs (histone acetyltransferases) are found in many human malignant tissues and the histones acetylation seems to influence different processes including the progression of cell cycle, the dynamics of chromosomes, DNA recombination, DNA repair and apoptosis...
June 28, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28881224/accent-modulates-access-to-word-meaning-evidence-for-a-speaker-model-account-of-spoken-word-recognition
#11
Zhenguang G Cai, Rebecca A Gilbert, Matthew H Davis, M Gareth Gaskell, Lauren Farrar, Sarah Adler, Jennifer M Rodd
Speech carries accent information relevant to determining the speaker's linguistic and social background. A series of web-based experiments demonstrate that accent cues can modulate access to word meaning. In Experiments 1-3, British participants were more likely to retrieve the American dominant meaning (e.g., hat meaning of "bonnet") in a word association task if they heard the words in an American than a British accent. In addition, results from a speeded semantic decision task (Experiment 4) and sentence comprehension task (Experiment 5) confirm that accent modulates on-line meaning retrieval such that comprehension of ambiguous words is easier when the relevant word meaning is dominant in the speaker's dialect...
September 4, 2017: Cognitive Psychology
https://www.readbyqxmd.com/read/28881037/comparison-of-vessel-enhancement-algorithms-applied-to-time-of-flight-mra-images-for-cerebrovascular-segmentation
#12
Renzo Phellan, Nils D Forkert
PURPOSE: Vessel enhancement algorithms are often used as a preprocessing step for vessel segmentation in medical images to improve the overall segmentation accuracy. Each algorithm uses different characteristics to enhance vessels, such that the most suitable algorithm may vary for different applications. This paper presents a comparative analysis of the accuracy gains in vessel segmentation generated by the use of nine vessel enhancement algorithms: Multiscale vesselness using the formulas described by Erdt (MSE), Frangi (MSF), and Sato (MSS), optimally oriented ux (OOF), ranking orientations responses path operator (RORPO), the regularized Perona-Malik approach (RPM), vessel enhanced diffusion (VED), hybrid diffusion with continuous switch (HDCS), and the white top hat algorithm (WTH)...
September 7, 2017: Medical Physics
https://www.readbyqxmd.com/read/28872247/update-zum-klinischen-einsatz-von-inhibitoren-mutierter-phosphokinasen-beim-melanom
#13
REVIEW
Ioana Cosgarea, Cathrin Ritter, Jürgen C Becker, Dirk Schadendorf, Selma Ugurel
Die Behandlungsstrategie beim metastasierten Melanom hat sich mit der Identifizierung therapeutisch angreifbarer molekularer Zielstrukturen innerhalb zellulärer Signalwege radikal geändert. Durch die Zulassung von Substanzen, die gezielt an den zentralen Schaltmolekülen, den Phosphokinasen, angreifen, können diese Signalwege selektiv abgeschaltet werden. Dies ist insbesondere bei denjenigen Tumoren von Interesse, deren Signalwege durch aktivierende Mutationen der für die Schaltmoleküle kodierenden Gene konstitutiv aktiviert sind...
September 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28871603/targeting-histone-acetyltransferase-tip60-inhibits-intestinal-allergy
#14
Gui Yang, Bao-Hui Cheng, Shao-Bo Yang, Zhi-Qiang Liu, Shu-Qi Qiu, Li-Tao Yang, Rui-Di Xie, Xiao-Rui Geng, Mao-Gang Li, Lin Gao, Zhi-Gang Liu, Ping-Chang Yang
BACKGROUND: The over production of IgE plays a critical role in the pathogenesis of allergy; the mechanism is unclear. Histone acetyltransferase (HAT) activities are required in gene transcription of a large number of molecules in the immune system of the body. OBJECTIVES: This study tests a hypothesis that HAT Tat-interactive protein 60 (Tip60) plays an important role in the initiation of IgE-mediated allergy. METHODS: The effects of Tip60 on regulating IgE expression were assessed with B cells...
September 4, 2017: Allergy
https://www.readbyqxmd.com/read/28869805/pre-operative-trans-catheter-arterial-chemo-embolization-increases-hepatic-artery-thrombosis-after-liver-transplantation-a-retrospective-study
#15
Nicholas Gilbo, Laura Van Praet, Ina Jochmans, Mauricio Sainz-Barriga, Chris Verslype, Geert Maleux, Wim Laleman, Schalk van der Merwe, David Cassiman, Frederik Nevens, Diethard Monbaliu, Jacques Pirenne
Little is known about nonsurgical risk factors for hepatic artery thrombosis (HAT) after liver transplantation (LT). We determined risk factors for HAT occurring within 90 days post-LT and analysed the effect of HAT on graft and patient survival. Donor and recipient demographics, surgery-related data and outcome in transplants complicated by thrombosis (HAT+) and their matched controls (HAT-) were compared. Risk factors were assessed by univariate logistic regression. Median (IQR) is given. A total of 25 HAT occurred among 1035 adult LT (1/1997-12/2014) and 50 controls were manually matched...
September 4, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28868790/insulin-regulation-of-gluconeogenesis
#16
REVIEW
Maximilian Hatting, Clint D J Tavares, Kfir Sharabi, Amy K Rines, Pere Puigserver
The coordinated regulation between cellular glucose uptake and endogenous glucose production is indispensable for the maintenance of constant blood glucose concentrations. The liver contributes significantly to this process by altering the levels of hepatic glucose release, through controlling the processes of de novo glucose production (gluconeogenesis) and glycogen breakdown (glycogenolysis). Various nutritional and hormonal stimuli signal to alter hepatic gluconeogenic flux, and suppression of this metabolic pathway during the postprandial state can, to a significant extent, be attributed to insulin...
September 3, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28863558/head-movement-immune-active-noise-control-with-head-mounted-moving-microphones
#17
Santosh Kumar Behera, Debi Prasad Das, Bidyadhar Subudhi
The active headrest is an important application of active noise control (ANC) where the occupant gets a quiet zone during use. However, its performance degrades due to head movement, which is an important issue. Unlike conventional active headrest algorithm, in the present paper, the two error microphones are attached to a head attachment such as a hat or band so that both error microphones can move along with the head, keeping the relative distance of ears and the microphones intact. The two secondary loudspeakers are kept near to the head, facing the ears...
August 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28858909/determinants-of-sunburn-and-sun-protection-of-agricultural-workers-during-occupational-and-recreational-activities
#18
Claudine Backes, Antoine Milon, Alice Koechlin, David Vernez, Jean-Luc Bulliard
OBJECTIVE: The aim of this study was to identify determinants of occupational sunburn in agricultural workers and assess their occupational and recreational sun protection habits. METHODS: Specific surveys of agricultural workers in Switzerland and France were conducted (N = 1538). Multivariate logistic regressions identified occupational sunburn determinants. Occupational and recreational sun protection habits were estimated and correlated. RESULTS: One-year occupational and recreational sunburn prevalences were 19...
August 30, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28858647/hair-segmentation-using-adaptive-threshold-from-edge-and-branch-length-measures
#19
Ian Lee, Xian Du, Brian Anthony
BACKGROUND: Non-invasive imaging techniques allow the monitoring of skin structure and diagnosis of skin diseases in clinical applications. However, hair in skin images hampers the imaging and classification of the skin structure of interest. Although many hair segmentation methods have been proposed for digital hair removal, a major challenge in hair segmentation remains in detecting hairs that are thin, overlapping, of similar contrast or color to underlying skin, or overlaid on highly-textured skin structure...
August 24, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28856178/histone-deacetylases-and-their-roles-in-mineralized-tissue-regeneration
#20
REVIEW
Nam Cong-Nhat Huynh, Vincent Everts, Ruchanee Salingcarnboriboon Ampornaramveth
Histone acetylation is an important epigenetic mechanism that controls expression of certain genes. It includes non-sequence-based changes of chromosomal regional structure that can alter the expression of genes. Acetylation of histones is controlled by the activity of two groups of enzymes: the histone acetyltransferases (HATs) and histone deacetylases (HDACs). HDACs remove acetyl groups from the histone tail, which alters its charge and thus promotes compaction of DNA in the nucleosome. HDACs render the chromatin structure into a more compact form of heterochromatin, which makes the genes inaccessible for transcription...
December 2017: Bone Reports
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