Institution
University of Lausanne
Education•Lausanne, Switzerland•
About: University of Lausanne is a education organization based out in Lausanne, Switzerland. It is known for research contribution in the topics: Population & Poison control. The organization has 20508 authors who have published 46458 publications receiving 1996655 citations. The organization is also known as: Université de Lausanne & UNIL.
Topics: Population, Poison control, Immune system, Cytotoxic T cell, T cell
Papers published on a yearly basis
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TL;DR: In kittens, but not in adults, callosal axons also reach other regions, but there they appear to be confined to the lowest part of layer VI, where they apparently enter the gray matter only in the restricted regions where they will also be found in adults.
Abstract: The visual cortical areas in the two hemispheres are interconnected by axons running through the corpus callosum. In adult cats, these axons originate from, and terminate in, tangentially restricted portions of each area. In young kittens, however, callosal axons originate from the entire extent of each area, although they apparently enter the gray matter only in the restricted regions where they will also be found in adults. In kittens, but not in adults, callosal axons also reach other regions, but there they appear to be confined to the lowest part of layer VI. During the first two postnatal months, the callosal efferent zones become progressively restricted to their adult locations. During this process, many neurons eliminate the axons (or axon collaterals) that they had formerly sent through the corpus callosum and form permanent connection ipsilaterally.
573 citations
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TL;DR: This work provides a genetic basis for investigating mechanisms of long-distance wound signalling in plants and indicates that plant genes related to those important for synaptic activity in animals function in organ-to-organ wound signalling.
Abstract: Wounded leaves communicate their damage status to one another through a poorly understood process of long-distance signalling. This stimulates the distal production of jasmonates, potent regulators of defence responses. Using non-invasive electrodes we mapped surface potential changes in Arabidopsis thaliana after wounding leaf eight and found that membrane depolarizations correlated with jasmonate signalling domains in undamaged leaves. Furthermore, current injection elicited jasmonoyl-isoleucine accumulation, resulting in a transcriptome enriched in RNAs encoding key jasmonate signalling regulators. From among 34 screened membrane protein mutant lines, mutations in several clade 3 GLUTAMATE RECEPTOR-LIKE genes (GLRs 3.2, 3.3 and 3.6) attenuated wound-induced surface potential changes. Jasmonate-response gene expression in leaves distal to wounds was reduced in a glr3.3 glr3.6 double mutant. This work provides a genetic basis for investigating mechanisms of long-distance wound signalling in plants and indicates that plant genes related to those important for synaptic activity in animals function in organ-to-organ wound signalling.
572 citations
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TL;DR: The data show that spine growth precedes synapse formation and that new synapses form preferentially onto existing boutons, and in some instances, two new spines contacted the same axon.
Abstract: Dendritic spines appear and disappear in an experience-dependent manner. Although some new spines have been shown to contain synapses, little is known about the relationship between spine addition and synapse formation, the relative time course of these events, or whether they are coupled to de novo growth of axonal boutons. We imaged dendrites in barrel cortex of adult mice over 1 month, tracking gains and losses of spines. Using serial section electron microscopy, we analyzed the ultrastructure of spines and associated boutons. Spines reconstructed shortly after they appeared often lacked synapses, whereas spines that persisted for 4 d or more always had synapses. New spines had a large surface-to-volume ratio and preferentially contacted boutons with other synapses. In some instances, two new spines contacted the same axon. Our data show that spine growth precedes synapse formation and that new synapses form preferentially onto existing boutons.
571 citations
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University of Oxford1, GlaxoSmithKline2, Imperial College London3, University of Pennsylvania4, University of Lausanne5, Medical Research Council6, Wellcome Trust Sanger Institute7, University of Cambridge8, The Heart Research Institute9, University of California, San Francisco10, University of Oulu11, University of Ottawa12, University of Toronto13, King's College London14, University of Dundee15, University of Bergen16, Max Planck Society17, Ludwig Maximilian University of Munich18, University of Mainz19, Innsbruck Medical University20, University of Zagreb21, University of Edinburgh22, MedStar Washington Hospital Center23, University of Kiel24, National Research Council25, National Institutes of Health26, University of Texas MD Anderson Cancer Center27, University of Aberdeen28, University of Michigan29, University of Greifswald30, University of Split31, University of Leicester32, University of Leeds33, Guy's Hospital34, Queen Mary University of London35, University of Glasgow36
TL;DR: The Oxford-GlaxoSmithKline study (Ox-GSK) as discussed by the authors performed a genome-wide meta-analysis of SNP association with smoking-related behavioral traits and found an effect on smoking quantity at a locus on 15q25 (P = 9.45 x 10(-19) that includes CHRNA5, CHRNA3 and CHRNB4.
Abstract: Smoking is a leading global cause of disease and mortality. We established the Oxford-GlaxoSmithKline study (Ox-GSK) to perform a genome-wide meta-analysis of SNP association with smoking-related behavioral traits. Our final data set included 41,150 individuals drawn from 20 disease, population and control cohorts. Our analysis confirmed an effect on smoking quantity at a locus on 15q25 (P = 9.45 x 10(-19)) that includes CHRNA5, CHRNA3 and CHRNB4, three genes encoding neuronal nicotinic acetylcholine receptor subunits. We used data from the 1000 Genomes project to investigate the region using imputation, which allowed for analysis of virtually all common SNPs in the region and offered a fivefold increase in marker density over HapMap2 (ref. 2) as an imputation reference panel. Our fine-mapping approach identified a SNP showing the highest significance, rs55853698, located within the promoter region of CHRNA5. Conditional analysis also identified a secondary locus (rs6495308) in CHRNA3.
568 citations
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567 citations
Authors
Showing all 20911 results
Name | H-index | Papers | Citations |
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Peer Bork | 206 | 697 | 245427 |
Aaron R. Folsom | 181 | 1118 | 134044 |
Kari Alitalo | 174 | 817 | 114231 |
Ralph A. DeFronzo | 160 | 759 | 132993 |
Johan Auwerx | 158 | 653 | 95779 |
Silvia Franceschi | 155 | 1340 | 112504 |
Matthias Egger | 152 | 901 | 184176 |
Bart Staels | 152 | 824 | 86638 |
Fernando Rivadeneira | 146 | 628 | 86582 |
Christopher George Tully | 142 | 1843 | 111669 |
Richard S. J. Frackowiak | 142 | 309 | 100726 |
Peter Timothy Cox | 140 | 1267 | 95584 |
Jürg Tschopp | 140 | 328 | 86900 |
Stylianos E. Antonarakis | 138 | 746 | 93605 |
Michael Weller | 134 | 1105 | 91874 |