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gerald smith

Gerald L Benny, Hsiao-Man Ho, Katy Lazarus, Matthew E Smith
More than 520 soil samples were surveyed for species of the mycoparasitic zygomycete genus Syncephalis using a culture-based approach. These fungi are relatively common in soil using the optimal conditions for growing both the host and parasite. Five species obtained in dual culture are unknown to science and are described here: (i) S. digitata with sporangiophores short, merosporangia separate at the apices, simple, 3-5 spored; (ii) S. floridana, which forms galls in the host and has sporangiophores up to 170 µm long with unbranched merosporangia that contain 2-4 spores; (iii) S...
October 19, 2016: Mycologia
Joseph W Spatafora, Ying Chang, Gerald L Benny, Katy Lazarus, Matthew E Smith, Mary L Berbee, Gregory Bonito, Nicolas Corradi, Igor Grigoriev, Andrii Gryganskyi, Timothy Y James, Kerry O'Donnell, Robert W Roberson, Thomas N Taylor, Jessie Uehling, Rytas Vilgalys, Merlin M White, Jason E Stajich
Zygomycete fungi were classified as a single phylum, Zygomycota, based on sexual reproduction by zygospores, frequent asexual reproduction by sporangia, absence of multicellular sporocarps, and production of coenocytic hyphae, all with some exceptions. Molecular phylogenies based on one or a few genes did not support the monophyly of the phylum, however, and the phylum was subsequently abandoned. Here we present phylogenetic analyses of a genome-scale data set for 46 taxa, including 25 zygomycetes and 192 proteins, and we demonstrate that zygomycetes comprise two major clades that form a paraphyletic grade...
September 2016: Mycologia
Lahiru S Wijedasa, Jyrki Jauhiainen, Mari Könönen, Maija Lampela, Harri Vasander, Marie-Claire LeBlanc, Stephanie Evers, Thomas E L Smith, Catherine M Yule, Helena Varkkey, Massimo Lupascu, Faizal Parish, Ian Singleton, Gopalasamy R Clements, Sheema Abdul Aziz, Mark E Harrison, Susan Cheyne, Gusti Z Anshari, Erik Meijaard, Jenny E Goldstein, Susan Waldron, Kristell Hergoualc'h, René Dommain, Steve Frolking, Christopher D Evans, Mary Rose C Posa, Paul H Glaser, Nyoman Suryadiputra, Reza Lubis, Truly Santika, Rory Padfield, Sofyan Kurnianto, Panut Hadisiswoyo, Teck Wyn Lim, Susan E Page, Vincent Gauci, Peter J van der Meer, Helen Buckland, Fabien Garnier, Marshall K Samuel, Liza Nuriati Lim Kim Choo, Patrick O'Reilly, Matthew Warren, Surin Suksuwan, Elham Sumarga, Anuj Jain, William F Laurance, John Couwenberg, Hans Joosten, Ronald Vernimmen, Aljosja Hooijer, Chris Malins, Mark A Cochrane, Balu Perumal, Florian Siegert, Kelvin S-H Peh, Louis-Pierre Comeau, Louis Verchot, Charles F Harvey, Alex Cobb, Zeehan Jaafar, Henk Wösten, Solichin Manuri, Moritz Müller, Wim Giesen, Jacob Phelps, Ding Li Yong, Marcel Silvius, Béatrice M M Wedeux, Alison Hoyt, Mitsuru Osaki, Hirano Takashi, Hidenori Takahashi, Takashi S Kohyama, Akira Haraguchi, Nunung P Nugroho, David A Coomes, Le Phat Quoi, Alue Dohong, Haris Gunawan, David L A Gaveau, Andreas Langner, Felix K S Lim, David P Edwards, Xingli Giam, Guido van der Werf, Rachel Carmenta, Caspar C Verwer, Luke Gibson, Laure Grandois, Laura Linda Bozena Graham, Jhanson Regalino, Serge A Wich, Jack Rieley, Nicholas Kettridge, Chloe Brown, Romain Pirard, Sam Moore, B Ripoll Capilla, Uwe Ballhorn, Hua Chew Ho, Agata Hoscilo, Sandra Lohberger, Theodore A Evans, Nina Yulianti, Grace Blackham, Onrizal, Simon Husson, Daniel Murdiyarso, Sunita Pangala, Lydia E S Cole, Luca Tacconi, Hendrik Segah, Prayoto Tonoto, Janice S H Lee, Gerald Schmilewski, Stephan Wulffraat, Erianto Indra Putra, Megan E Cattau, R S Clymo, Ross Morrison, Aazani Mujahid, Jukka Miettinen, Soo Chin Liew, Samu Valpola, David Wilson, Laura D'Arcy, Michiel Gerding, Siti Sundari, Sara A Thornton, Barbara Kalisz, Stephen J Chapman, Ahmad Suhaizi Mat Su, Imam Basuki, Masayuki Itoh, Carl Traeholt, Sean Sloan, Alexander K Sayok, Roxane Andersen
The first International Peat Congress (IPC) held in the tropics - in Kuching (Malaysia) - brought together over 1000 international peatland scientists and industrial partners from across the world ("International Peat Congress with over 1000 participants!," 2016). The congress covered all aspects of peatland ecosystems and their management, with a strong focus on the environmental, societal and economic challenges associated with contemporary large-scale agricultural conversion of tropical peat. This article is protected by copyright...
September 27, 2016: Global Change Biology
Myrianthi Hadjicharalambous, Liya Asner, Radomir Chabiniok, Eva Sammut, James Wong, Devis Peressutti, Eric Kerfoot, Andrew King, Jack Lee, Reza Razavi, Nicolas Smith, Gerald Carr-White, David Nordsletten
Patient-specific modelling has emerged as a tool for studying heart function, demonstrating the potential to provide non-invasive estimates of tissue passive stiffness. However, reliable use of model-derived stiffness requires sufficient model accuracy and unique estimation of model parameters. In this paper we present personalised models of cardiac mechanics, focusing on improving model accuracy, while ensuring unique parametrisation. The influence of principal model uncertainties on accuracy and parameter identifiability was systematically assessed in a group of patients with dilated cardiomyopathy ([Formula: see text]) and healthy volunteers ([Formula: see text])...
September 7, 2016: Annals of Biomedical Engineering
Jos L J van der Velden, Ying Ye, James D Nolin, Sidra M Hoffman, David G Chapman, Karolyn G Lahue, Sarah Abdalla, Peng Chen, Yong Liu, Brydon Bennett, Nasreen Khalil, Donna Sutherland, William Smith, Gerald Horan, Mahmoud Assaf, Zebulun Horowitz, Rajesh Chopra, Randall M Stevens, Maria Palmisano, Yvonne M W Janssen-Heininger, Peter H Schafer
BACKGROUND: Lung remodeling and pulmonary fibrosis are serious, life-threatening conditions resulting from diseases such as chronic severe asthma and idiopathic pulmonary fibrosis (IPF). Preclinical evidence suggests that JNK enzyme function is required for key steps in the pulmonary fibrotic process. However, a selective JNK inhibitor has not been investigated in translational models of lung fibrosis with clinically relevant biomarkers, or in IPF patients. METHODS: The JNK inhibitor CC-930 was evaluated in the house dust mite-induced fibrotic airway mouse model, in a phase I healthy volunteer pharmacodynamic study, and subsequently in a phase II multicenter study of mild/moderate IPF (n = 28), with a 4-week, placebo-controlled, double-blind, sequential ascending-dose period (50 mg QD, 100 mg QD, 100 mg BID) and a 52-week open-label treatment-extension period...
December 2016: Clinical and Translational Medicine
Mathew Smith, Allyson Box, Wade Hoffstetter, Gerald Mangine, Paul Serafini, Brian Kliszczewicz, Yuri Feito
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Wade Hoffstetter, Allyson Box, Hannah Mimms, Paul Serafini, Mathew Smith, Brain Kliszczewicz, Gerald Mangine, Yuri Feito
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Daniel S Evans, Christy L Avery, Mike A Nalls, Guo Li, John Barnard, Erin N Smith, Toshiko Tanaka, Anne M Butler, Sarah G Buxbaum, Alvaro Alonso, Dan E Arking, Gerald S Berenson, Joshua C Bis, Steven Buyske, Cara L Carty, Wei Chen, Mina K Chung, Steven R Cummings, Rajat Deo, Charles B Eaton, Ervin R Fox, Susan R Heckbert, Gerardo Heiss, Lucia A Hindorff, Wen-Chi Hsueh, Aaron Isaacs, Yalda Jamshidi, Kathleen F Kerr, Felix Liu, Yongmei Liu, Kurt K Lohman, Jared W Magnani, Joseph F Maher, Reena Mehra, Yan A Meng, Solomon K Musani, Christopher Newton-Cheh, Kari E North, Bruce M Psaty, Susan Redline, Jerome I Rotter, Renate B Schnabel, Nicholas J Schork, Ralph V Shohet, Andrew B Singleton, Jonathan D Smith, Elsayed Z Soliman, Sathanur R Srinivasan, Herman A Taylor, David R Van Wagoner, James G Wilson, Taylor Young, Zhu-Ming Zhang, Alan B Zonderman, Michele K Evans, Luigi Ferrucci, Sarah S Murray, Gregory J Tranah, Eric A Whitsel, Alex P Reiner, Nona Sotoodehnia
The electrocardiographic QRS duration, a measure of ventricular depolarization and conduction, is associated with cardiovascular mortality. While genome-wide association studies (GWAS) have identified single nucleotide polymorphisms (SNPs) associated with QRS duration at 22 loci among those of European descent, the genetic architecture of QRS duration in non-European populations is largely unknown. We therefore performed a GWAS meta-analysis of QRS duration in 13,031 African Americans from ten cohorts and a transethnic GWAS meta-analysis with additional results from populations of European descent...
August 29, 2016: Human Molecular Genetics
Nasir Hussain, Thomas Gerald Ferreri, Parker Joseph Prusick, Vince Roger Prusick, Mohit Bhandari
No abstract text is available yet for this article.
September 2016: Regional Anesthesia and Pain Medicine
Marlise R Luskin, Phyllis A Gimotty, Catherine Smith, Alison W Loren, Maria E Figueroa, Jenna Harrison, Zhuoxin Sun, Martin S Tallman, Elisabeth M Paietta, Mark R Litzow, Ari M Melnick, Ross L Levine, Hugo F Fernandez, Selina M Luger, Martin Carroll, Stephen R Master, Gerald B W Wertheim
BACKGROUND: Variable response to chemotherapy in acute myeloid leukemia (AML) represents a major treatment challenge. Clinical and genetic features incompletely predict outcome. The value of clinical epigenetic assays for risk classification has not been extensively explored. We assess the prognostic implications of a clinical assay for multilocus DNA methylation on adult patients with de novo AML. METHODS: We performed multilocus DNA methylation assessment using xMELP on samples and calculated a methylation statistic (M-score) for 166 patients from UPENN with de novo AML who received induction chemotherapy...
June 16, 2016: JCI Insight
Susan K Amundsen, Jake W Sharp, Gerald R Smith
RecBCD enzyme is a complex, three-subunit protein machine essential for the major pathway of DNA double-strand break repair and homologous recombination in Escherichia coli Upon encountering a Chi recombination-hotspot during DNA unwinding, RecBCD nicks DNA to produce a single-stranded DNA end onto which it loads RecA protein. Conformational changes that regulate RecBCD's helicase and nuclease activities are induced upon its interaction with Chi, defined historically as 5' GCTGGTGG 3'. Chi is thought to be recognized as single-stranded DNA passing through a tunnel in RecC...
September 2016: Genetics
Quint N Berkemeier, Chelsie Fechtner, Brent Alumbaugh, Michael Reeder, Gerald A Smith
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Andrew F Taylor, Susan K Amundsen, Gerald R Smith
Homologous recombination occurs especially frequently near special chromosomal sites called hotspots. In Escherichia coli, Chi hotspots control RecBCD enzyme, a protein machine essential for the major pathway of DNA break-repair and recombination. RecBCD generates recombinogenic single-stranded DNA ends by unwinding DNA and cutting it a few nucleotides to the 3' side of 5' GCTGGTGG 3', the sequence historically equated with Chi. To test if sequence context affects Chi activity, we deep-sequenced the products of a DNA library containing 10 random base-pairs on each side of the Chi sequence and cut by purified RecBCD...
September 30, 2016: Nucleic Acids Research
Silvia Polakova, Lucia Molnarova, Randy W Hyppa, Zsigmond Benko, Ivana Misova, Alexander Schleiffer, Gerald R Smith, Juraj Gregan
To identify new proteins required for faithful meiotic chromosome segregation, we screened a Schizosaccharomyces pombe deletion mutant library and found that deletion of the dbl2 gene led to missegregation of chromosomes during meiosis. Analyses of both live and fixed cells showed that dbl2Δ mutant cells frequently failed to segregate homologous chromosomes to opposite poles during meiosis I. Removing Rec12 (Spo11 homolog) to eliminate meiotic DNA double-strand breaks (DSBs) suppressed the segregation defect in dbl2Δ cells, indicating that Dbl2 acts after the initiation of meiotic recombination...
June 2016: PLoS Genetics
Nick Cox, James R Kintzing, Mark Smith, Gerald A Grant, Jennifer R Cochran
Antibody-drug conjugates (ADCs) offer increased efficacy and reduced toxicity compared to systemic chemotherapy. Less attention has been paid to peptide-drug delivery, which has the potential for increased tumor penetration and facile synthesis. We report a knottin peptide-drug conjugate (KDC) and demonstrate that it can selectively deliver gemcitabine to malignant cells expressing tumor-associated integrins. This KDC binds to tumor cells with low-nanomolar affinity, is internalized by an integrin-mediated process, releases its payload intracellularly, and is a highly potent inhibitor of brain, breast, ovarian, and pancreatic cancer cell lines...
August 16, 2016: Angewandte Chemie
Jessemae L Welsh, Omar Jaber, Marina Ivanovic, Frederick C Johlin, Rami G El Abiad, Gerald H Clamon, Mark C Smith, Carlos H F Chan
No abstract text is available yet for this article.
June 6, 2016: Journal of Gastrointestinal Cancer
Gerald O Hunter, Melanie J Fox, Whitney R Smith-Kinnaman, Madelaine Gogol, Brian Fleharty, Amber L Mosley
In eukaryotes, the C-terminal domain (CTD) of Rpb1 contains a heptapeptide repeat sequence of (Y1S2P3T4S5P6S7)n that undergoes reversible phosphorylation through the opposing action of kinases and phosphatases. Rtr1 is a conserved protein that colocalizes with RNA polymerase II (RNAPII) and has been shown to be important for the transition from elongation to termination during transcription by removing RNAPII CTD serine 5 phosphorylation (Ser5-P) at a selection of target genes. In this study, we show that Rtr1 is a global regulator of the CTD code with deletion of RTR1 causing genome-wide changes in Ser5-P CTD phosphorylation and cotranscriptional histone H3 lysine 36 trimethylation (H3K36me3)...
September 1, 2016: Molecular and Cellular Biology
Michael M Engelgau, Uchechukwu K Sampson, Cristina Rabadan-Diehl, Richard Smith, Jaime Miranda, Gerald S Bloomfield, Deshiree Belis, K M Venkat Narayan
Effectively tackling the growing noncommunicable disease (NCD) burden in low- and middle-income countries (LMIC) is a major challenge. To address research needs in this setting for NCDs, in 2009, National Heart, Lung, and Blood Institute (NHLBI) and UnitedHealth Group (UHG) engaged in a public-private partnership that supported a network of 11 LMIC-based research centers and created the NHLBI-UnitedHealth Global Health Centers of Excellence (COE) Program. The Program's overall goal was to contribute to reducing the cardiovascular and lung disease burdens by catalyzing in-country research institutions to develop a global network of biomedical research centers...
March 2016: Global Heart
Kimberly Johnson, Jessica Barragan, Sarah Bashiruddin, Cody J Smith, Chelsea Tyrrell, Michael J Parsons, Rosemarie Doris, Sarah Kucenas, Gerald B Downes, Carla M Velez, Caitlin Schneider, Catalina Sakai, Narendra Pathak, Katrina Anderson, Rachael Stein, Stephen H Devoto, Jeff S Mumm, Michael J F Barresi
Radial glial cells are presumptive neural stem cells (NSCs) in the developing nervous system. The direct requirement of radial glia for the generation of a diverse array of neuronal and glial subtypes, however, has not been tested. We employed two novel transgenic zebrafish lines and endogenous markers of NSCs and radial glia to show for the first time that radial glia are essential for neurogenesis during development. By using the gfap promoter to drive expression of nuclear localized mCherry we discerned two distinct radial glial-derived cell types: a major nestin+/Sox2+ subtype with strong gfap promoter activity and a minor Sox2+ subtype lacking this activity...
July 2016: Glia
Ila Cote, Melvin E Andersen, Gerald T Ankley, Stanley Barone, Linda S Birnbaum, Kim Boekelheide, Frederic Y Bois, Lyle D Burgoon, Weihsueh A Chiu, Douglas Crawford-Brown, Kevin M Crofton, Michael DeVito, Robert B Devlin, Stephen W Edwards, Kathryn Z Guyton, Dale Hattis, Richard S Judson, Derek Knight, Daniel Krewski, Jason Lambert, Elizabeth Anne Maull, Donna Mendrick, Gregory M Paoli, Chirag Jagdish Patel, Edward J Perkins, Gerald Poje, Christopher J Portier, Ivan Rusyn, Paul A Schulte, Anton Simeonov, Martyn T Smith, Kristina A Thayer, Russell S Thomas, Reuben Thomas, Raymond R Tice, John J Vandenberg, Daniel L Villeneuve, Scott Wesselkamper, Maurice Whelan, Christine Whittaker, Ronald White, Menghang Xia, Carole Yauk, Lauren Zeise, Jay Zhao, Robert S DeWoskin
BACKGROUND: The Next Generation (NexGen) of Risk Assessment effort is a multiyear collaboration among several organizations evaluating new, potentially more efficient molecular, computational and systems biology approaches to risk assessment. This paper summarizes our findings, suggests applications to risk assessment, and identifies strategic research directions. OBJECTIVE: Our specific objectives were to test whether advanced biological data and methods could better inform our understanding of public health risks posed by environmental exposures...
April 19, 2016: Environmental Health Perspectives
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