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Found 37443 matches. Displaying 2931-2940
Aaltonen T, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Bae T, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bedeschi F, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Bromberg C, Brucken E, Budagov J, Budd HS, Burkett K, Busetto G, Bussey P, Butti P, Buzatu A, Calamba A, Camarda S, Campanelli M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Cho K, Chokheli D, Clark A, Clarke C, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Cremonesi M, Cruz D, Cuevas J, Culbertson R, d'Ascenzo N, Datta M, de Barbaro P, Demortier L, Deninno M, D'Errico M, Devoto F, Di Canto A, Di Ruzza B, Dittmann JR, Donati S, D'Onofrio M, Dorigo M, Driutti A, Ebina K, Edgar R, Elagin A, Erbacher R, Errede S, Esham B, Farrington S, Ramos JPF, Field R, Flanagan G, Forrest R, Franklin M, Freeman JC, Frisch H, Funakoshi Y, Galloni C, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldin D, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, Lopez OG, Gorelov I, Goshaw AT, Goulianos K, Gramellini E, Grosso-Pilcher C, da Costa JG, Hahn SR, Han JY, Happacher F, Hara K, Hare M, Harr RF, Harrington-Taber T, Hatakeyama K, Hays C, Heinrich J, Herndon M, Hocker A, Hong Z, Hopkins W, Hou S, Hughes RE, Husemann U, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jindariani S, Jones M, Joo KK, Jun SY, Junk TR, Kambeitz M, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SH, Kim SB, Kim YJ, Kim YK, Kimura N, Kirby M, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Kruse M, Kuhr T, Kurata M, Laasanen AT, Lammel S, Lancaster M, Lannon K, Latino G, Lee HS, Lee JS, Leo S, Leone S, Lewis JD, Limosani A, Lipeles E, Lister A, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Luca A, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maestro P, Malik S, Manca G, Manousakis-Katsikakis A, Marchese L, Margaroli F, Marino P, Matera K, Mattson ME, Mazzacane A, Mazzanti P, McNulty R, Mehta A, Mehtala P, Mesropian C, Miao T, Michielin E, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello MJ, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Nigmanov T, Nodulman L, Noh SY, Norniella O, Oakes L, Oh SH, Oh YD, Okusawa T, Orava R, Ortolan L, Pagliarone C, Palencia E, Palni P, Papadimitriou V, Parker W, Pauletta G, Paulini M, Paus C, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Poprocki S, Potamianos K, Pranko A, Prokoshin F, Ptohos F, Punzi G, Fernandez IR, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodriguez T, Rolli S, Ronzani M, Roser R, Rosner JL, Ruffini F, Ruiz A, Russ J, Rusu V, Sakumoto WK, Sakurai Y, Santi L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt EE, Schwarz T, Scodellaro L, Scuri F, Seidel S, Seiya Y, Semenov A, Sforza F, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shochet M, Shreyber-Tecker I, Simonenko A, Sliwa K, Smith JR, Snider FD, Song H, Sorin V, St Denis R, Stancari M, Stentz D, Strologas J, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thomson E, Thukral V, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Ukegawa F, Uozumi S, Vazquez F, Velev G, Vellidis C, Vernieri C, Vidal M, Vilar R, Vizan J, Vogel M, Volpi G, Wagner P, Wallny R, Wang SM, Waters D, Wester WC, Whiteson D, Wicklund AB, Wilbur S, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfmeister H, Wright T, Wu X, Wu Z, Yamamoto K, Yamato D, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Zanetti AM, Zeng Y, Zhou C, Zucchelli S
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Measurement of the differential cross sections for W-boson production in association with jets in p(p)over-bar collisions at root s=1.96 TeV (opens in new window)

PHYSICAL REVIEW D 2018 DEC 13; 98(11):? Article 112005
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This paper presents a study of the production of a single W boson in association with one or more jets in proton-antiproton collisions at is root s = 1.96 TeV, using the entire data set collected in 2001-2011 by the Collider Detector at Fermilab at the Tevatron, which corresponds to an integrated luminosity of 9.0 fb(-1). The W boson is identified through its leptonic decays into electron and muon. The production cross sections are measured for each leptonic decay mode and combined after testing that the ratio of the W(-> mu v) + jets cross section to the W(-> ev) + jets cross section agrees with the hypothesis of e-mu lepton universality. The combination of measured cross sections, differential in the inclusive jet multiplicity (W + >= N jets with N = 1, 2, 3, or 4) and in the transverse energy of the leading jet, are compared with theoretical predictions.
Martinez-Barricarte R, Markle JG, Ma CS, Deenick EK, Ramirez-Alejo N, Mele F, Latorre D, Mandaviani SA, Aytekin C, Mansouri D, Bryant VL, Jabot-Hanin F, Deswarte C, Nieto-Patlan A, Surace L, Kerner G, Itan Y, Jovic S, Avery DT, Wong N, Rao G, Patin E, Okada S, Bigio B, Boisson B, Rapaport F, Seeleuthner Y, Schmidt M, Ikinciogullari A, Dogu F, Tanir G, Tabarsi P, Bloursaz MR, Josephs JK, Heer A, Kong XF, Migaud M, Lazarov T, Geissmann F, Fleckenstein B, Arlehamn CL, Sette A, Puel A, Emile JF, van de Vosse E, Quintana-Murci L, Di Santo JP, Abel L, Boisson-Dupuis S, Bustamante J, Tangye SG, Sallusto F, Casanova JL
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Human IFN-gamma immunity to mycobacteria is governed by both IL-12 and IL-23 (opens in new window)

SCIENCE IMMUNOLOGY 2018 DEC; 3(30):? Article eaau6759
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Hundreds of patients with autosomal recessive, complete IL-12p40 or IL-12R beta 1 deficiency have been diagnosed over the last 20 years. They typically suffer from invasive mycobacteriosis and, occasionally, from mucocutaneous candidiasis. Susceptibility to these infections is thought to be due to impairments of IL-12-dependent IFN-gamma immunity and IL-23-dependent IL-17A/IL-17F immunity, respectively. We report here patients with autosomal recessive, complete IL-12R beta 2 or IL-23R deficiency, lacking responses to IL-12 or IL-23 only, all of whom, unexpectedly, display mycobacteriosis without candidiasis. We show that alpha beta T, gamma delta T, B, NK, ILC1, and ILC2 cells from healthy donors preferentially produce IFN-gamma in response to IL-12, whereas NKT cells and MAIT cells preferentially produce IFN-gamma in response to IL-23. We also show that the development of IFN-gamma-producing CD4(+) T cells, including, in particular, mycobacterium-specific T(H)1* cells (CD45RA(-)CCR6(+)), is dependent on both IL-12 and IL-23. Last, we show that IL12RB1, IL12RB2, and IL23R have similar frequencies of deleterious variants in the general population. The comparative rarity of symptomatic patients with IL-12R beta 2 or IL-23R deficiency, relative to IL-12R beta 1 deficiency, is, therefore, due to lower clinical penetrance. There are fewer symptomatic IL-23R- and IL-12R beta 2-deficient than IL-12R beta 1-deficient patients, not because these genetic disorders are rarer, but because the isolated absence of IL-12 or IL-23 is, in part, compensated by the other cytokine for the production of IFN-gamma, thereby providing some protection against mycobacteria. These experiments of nature show that human IL-12 and IL-23 are both required for optimal IFN-gamma-dependent immunity to mycobacteria, both individually and much more so cooperatively.
Nirody JA, Jinn J, Libby T, Lee TJ, Jusufi A, Hu DL, Full RJ
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Geckos Race Across the Water's Surface Using Multiple Mechanisms (opens in new window)

CURRENT BIOLOGY 2018 DEC 17; 28(24):4046-4051.e2
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Acrobatic geckos can sprint at high speeds over challenging terrain [1], scamper up the smoothest surfaces [2], rapidly swing underneath leaves [3], and right themselves in midair by swinging only their tails [4, 5]. From our field observations, we can add racing on the water's surface to the gecko's list of agile feats. Locomotion at the air-water interface evolved in over a thousand species, including insects, fish, reptiles, and mammals [6]. To support their weight, some larger-legged vertebrates use forces generated by vigorous slapping of the fluid's surface followed by a stroke of their appendage [7-12], whereas smaller animals, like arthropods, rely on surface tension to walk on water [6, 13]. Intermediate-sized geckos (Hemidactylus platyurus) fall squarely between these two regimes. Here, we report the unique ability of geckos to exceed the speed limits of conventional surface swimming. Several mechanisms likely contribute in this intermediate regime. In contrast to bipedal basilisk lizards [7-10], geckos used a stereotypic trotting gait with all four limbs, creating air cavities during slapping to raise their head and anterior trunk above water. Adding surfactant to the water decreased velocity by half, confirming surface tension's role. The superhydrophobic skin could reduce drag during semi-planing. Geckos laterally undulated their bodies, including their submerged posterior trunk and tail, generating thrust for forward propulsion, much like water dragons [14] and alligators [15]. Geckos again remind us of the advantages of multi-functional morphologies providing the opportunity for multiple mechanisms for motion.
Kim J, Lee J, Gonzalez J, Fuentes-Duculan J, Garcet S, Krueger JG
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Proportion of CD4(+)CD49b(+)LAG-3(+) Type 1 Regulatory T Cells in the Blood of Psoriasis Patients Inversely Correlates with Psoriasis Area and Severity Index (opens in new window)

JOURNAL OF INVESTIGATIVE DERMATOLOGY 2018 DEC; 138(12):2669-2672
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Stoeckle MY, Das Mishu M, Charlop-Powers Z
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GoFish: A versatile nested PCR strategy for environmental DNA assays for marine vertebrates (opens in new window)

PLOS ONE 2018 DEC 11; 13(12):? Article e0198717
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Here we describe GoFish, a strategy for single-species environmental DNA (eDNA) presence/absence assays using nested PCR. The assays amplify a mitochondrial 12S rDNA segment with vertebrate metabarcoding primers, followed by nested PCR with M13-tailed, species-specific primers. Sanger sequencing confirms positives detected by gel electrophoresis. We first obtained 12S sequences from 77 fish specimens for 36 northwestern Atlantic taxa not well documented in GenBank. Using these and existing 12S records, we designed GoFish assays for 11 bony fish species common in the lower Hudson River estuary and tested seasonal abundance and habitat preference at two sites. Additional assays detected nine cartilaginous fish species and a marine mammal, bottlenose dolphin, in southern New York Bight. GoFish sensitivity was equivalent to Illumina MiSeq metabarcoding. Unlike quantitative PCR (qPCR), GoFish does not require tissues of target and related species for assay development and a basic thermal cycler is sufficient. Unlike Illumina metabarcoding, indexing and batching samples are unnecessary and advanced bioinformatics expertise is not needed. From water collection to Sanger sequencing results, the assay can be carried out in three days. The main limitations to this approach, which employs metabarcoding primers, are the same as for metabarcoding, namely, inability to distinguish species with shared target sequences and inconsistent amplification of rarer eDNA. In addition, the performance of the 20 assays reported here as compared to other single-species eDNA assays is not known. This approach will be a useful addition to current eDNA methods when analyzing presence/absence of known species, when turnaround time is important, and in educational settings.
Boisson-Dupuis S, Ramirez-Alejo N, Li Z, Patin E, Rao G, Kerner G, Lim CK, Krementsov DN, Hernandez N, Ma CS, Zhang Q, Markle J, Martinez-Barricarte R, Payne K, Fisch R, Deswarte C, Halpern J, Bouaziz M, Mulwa J, Sivanesan D, Lazarov T, Naves R, Garcia P, Itan Y, Boisson B, Checchi A, Jabot-Hanin F, Cobat A, Guennoun A, Jackson CC, Pekcan S, Caliskaner Z, Inostroza J, Costa-Carvalho BT, de Albuquerque JAT, Garcia-Ortiz H, Orozco L, Ozcelik T, Abid A, Rhorfi IA, Souhi H, Amrani HN, Zegmout A, Geissmann F, Michnick SW, Muller-Fleckenstein I, Fleckenstein B, Puel A, Ciancanelli MJ, Marr N, Abolhassani H, Balcells ME, Condino-Neto A, Strickler A, Abarca K, Teuscher C, Ochs HD, Reisli I, Sayar EH, El-Baghdadi J, Bustamante J, Hammarstrom L, Tangye SG, Pellegrini S, Quintana-Murci L, Abel L, Casanova JL
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Tuberculosis and impaired IL-23-dependent IFN-gamma immunity in humans homozygous for a common TYK2 missense variant (opens in new window)

SCIENCE IMMUNOLOGY 2018 DEC; 3(30):? Article eaau8714
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Inherited IL-12R beta 1 and TYK2 deficiencies impair both IL-12- and IL-23 -dependent IFN-gamma immunity and are rare monogenic causes of tuberculosis, each found in less than 1/600,000 individuals. We show that homozygosity for the common TYK2 P1104A allele, which is found in about 1/600 Europeans and between 1/1000 and 1/10,000 individuals in regions other than East Asia, is more frequent in a cohort of patients with tuberculosis from endemic areas than in ethnicity-adjusted controls (P = 8.37 x 10(-8); odds ratio, 89.31; 95% CI, 14.7 to 1725). Moreover, the frequency of P1104A in Europeans has decreased, from about 9% to 4.2%, over the past 4000 years, consistent with purging of this variant by endemic tuberculosis. Surprisingly, we also show that TYK2 P1104A impairs cellular responses to IL-23, but not to IFN-alpha, IL-10, or even IL-12, which, like IL-23, induces IFN-gamma via activation of TYK2 and JAK2. Moreover, TYK2 P1104A is properly docked on cytokine receptors and can be phosphorylated by the proximal JAK, but lacks catalytic activity. Last, we show that the catalytic activity of TYK2 is essential for IL-23, but not IL-12, responses in cells expressing wild-type JAK2. In contrast, the catalytic activity of JAK2 is redundant for both IL-12 and IL-23 responses, because the catalytically inactive P1057A JAK2, which is also docked and phosphorylated, rescues signaling in cells expressing wild-type TYK2. In conclusion, homozygosity for the catalytically inactive P1104A missense variant of TYK2 selectively disrupts the induction of IFN-gamma by IL-23 and is a common monogenic etiology of tuberculosis.
Touhara KK, MacKinnon R
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Molecular basis of signaling specificity between GIRK channels and GPCRs (opens in new window)

ELIFE 2018 DEC 10; 7(?):? Article e42908
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Stimulated muscarinic acetylcholine receptors (M2Rs) release G beta gamma subunits, which slow heart rate by activating a G protein-gated K+ channel (GIRK). Stimulated beta 2 adrenergic receptors (beta 2ARs) also release G beta gamma subunits, but GIRK is not activated. This study addresses the mechanism underlying this specificity of GIRK activation by M2Rs. K+ currents and bioluminescence resonance energy transfer between labelled G proteins and GIRK show that M2Rs catalyze G beta gamma subunit release at higher rates than beta 2ARs, generating higher G beta gamma concentrations that activate GIRK and regulate other targets of G beta gamma. The higher rate of G beta gamma release is attributable to a faster G protein coupled receptor - G protein trimer association rate in M2R compared to beta 2AR. Thus, a rate difference in a single kinetic step accounts for specificity.
Sajkmar TP, Huber T
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Ancient Family of Retinal Proteins Brought to Light "Sight-Unseen" (opens in new window)

BIOCHEMISTRY 2018 DEC 11; 57(49):6735-6737
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Black EM, Giunta S
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Repetitive Fragile Sites: Centromere Satellite DNA as a Source of Genome Instability in Human Diseases (opens in new window)

GENES 2018 DEC; 9(12):? Article 615
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Maintenance of an intact genome is essential for cellular and organismal homeostasis. The centromere is a specialized chromosomal locus required for faithful genome inheritance at each round of cell division. Human centromeres are composed of large tandem arrays of repetitive alpha-satellite DNA, which are often sites of aberrant rearrangements that may lead to chromosome fusions and genetic abnormalities. While the centromere has an essential role in chromosome segregation during mitosis, the long and repetitive nature of the highly identical repeats has greatly hindered in-depth genetic studies, and complete annotation of all human centromeres is still lacking. Here, we review our current understanding of human centromere genetics and epigenetics as well as recent investigations into the role of centromere DNA in disease, with a special focus on cancer, aging, and human immunodeficiency-centromeric instability-facial anomalies (ICF) syndrome. We also highlight the causes and consequences of genomic instability at these large repetitive arrays and describe the possible sources of centromere fragility. The novel connection between alpha-satellite DNA instability and human pathological conditions emphasizes the importance of obtaining a truly complete human genome assembly and accelerating our understanding of centromere repeats' role in physiology and beyond.
Xue BK, Leibler S
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Benefits of phenotypic plasticity for population growth in varying environments (opens in new window)

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 2018 DEC 11; 115(50):12745-12750
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Phenotypic plasticity refers to the capacity of the same organisms to exhibit different characteristics under varied environmental conditions. A plastic developmental program allows organisms to sense environmental cues in early stages of life and express phenotypes that are better fitted to environments encountered later in life. This is often considered an adaptive strategy for living in varying environments as long as the plastic response is sufficiently fast, is accurate, and is not too costly. However, despite direct costs of maintaining plasticity and producing phenotypes, a fundamental constraint on the benefit of phenotypic plasticity comes from the predictability of the future environment based on the environmental cues received during development. Here, we analyze a model of plastic development and derive the limits within which this strategy can promote population growth. An explicit expression for the long-term growth rate of a developmentally plastic population is found, which can be decomposed into several easily interpretable terms, representing the benefits and the limitations of phenotypic plasticity as an adaptation strategy. This growth rate decomposition has a remarkably similar form to the expressions previously obtained for the bet-hedging strategy, in which a population randomly diversifies into coexisting subgroups with different phenotypes, implying that those evolutionary strategies may be unified under a common general framework.