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Institution

Pompeu Fabra University

EducationBarcelona, Spain
About: Pompeu Fabra University is a education organization based out in Barcelona, Spain. It is known for research contribution in the topics: Population & Gene. The organization has 8093 authors who have published 23570 publications receiving 858431 citations. The organization is also known as: Universitat Pompeu Fabra & UPF.


Papers
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Journal ArticleDOI
18 Apr 2016-RNA
TL;DR: It is shown that blocking of ribosomal elongation results in stabilization of many associated lncRNAs, suggesting that the ribosome is the default destination for the majority of cytoplasmic long noncoding RNAs and may play a role in their degradation.
Abstract: Recent footprinting studies have made the surprising observation that long noncoding RNAs (lncRNAs) physically interact with ribosomes. However, these findings remain controversial, and the overall proportion of cytoplasmic lncRNAs involved is unknown. Here we make a global, absolute estimate of the cytoplasmic and ribosome-associated population of stringently filtered lncRNAs in a human cell line using polysome profiling coupled to spike-in normalized microarray analysis. Fifty-four percent of expressed lncRNAs are detected in the cytoplasm. The majority of these (70%) have >50% of their cytoplasmic copies associated with polysomal fractions. These interactions are lost upon disruption of ribosomes by puromycin. Polysomal lncRNAs are distinguished by a number of 5' mRNA-like features, including capping and 5'UTR length. On the other hand, nonpolysomal "free cytoplasmic" lncRNAs have more conserved promoters and a wider range of expression across cell types. Exons of polysomal lncRNAs are depleted of endogenous retroviral insertions, suggesting a role for repetitive elements in lncRNA localization. Finally, we show that blocking of ribosomal elongation results in stabilization of many associated lncRNAs. Together these findings suggest that the ribosome is the default destination for the majority of cytoplasmic long noncoding RNAs and may play a role in their degradation.

179 citations

Journal ArticleDOI
TL;DR: The results suggest that the lack of CB1 receptor originates an enhanced response to stress and deficiency in neuronal plasticity by decreasing BDNF levels in the hippocampus that lead to impairment in the responses to emotional disturbances.
Abstract: Stress can cause damage and atrophy of neurons in the hippocampus by deregulating the expression of neurotrophic factors that promote neuronal plasticity. The endocannabinoid system represents a physiological substrate involved in neuroprotection at both cellular and emotional levels. The lack of CB1 receptor alters neuronal plasticity and originates an anxiety-like phenotype in mice. In the present study, CB1 knockout mice exhibited an augmented response to stress revealed by the increased despair behavior and corticosterone levels showed in the tail suspension test and decreased brain derived neurotrophic factor (BDNF) levels in the hippocampus. Interestingly, local administration of BDNF in the hippocampus reversed the increased despair behavior of CB1 knockout mice, confirming the crucial role played by BDNF on the emotional impairment of these mutants. The neurotrophic deficiency seems to be specific for BDNF as no differences were found in the levels of nerve growth factor and NT-3, two additional neurotrophic factors. Moreover, BDNF impairment is not related to the activity of its specific tyrosine kinase receptor or the activity of the transcription factor cAMP responsive element binding. These results suggest that the lack of CB1 receptor originates an enhanced response to stress and deficiency in neuronal plasticity by decreasing BDNF levels in the hippocampus that lead to impairment in the responses to emotional disturbances.

179 citations

Journal ArticleDOI
TL;DR: The authors gratefully acknowledge financial support from the Spanish Ministry of Science and Technology (Grants SEJ2006-09993, SEJ2007-64340/ECON and Ram¶on y Cajal fellowships) as well as from CREA and the Fundacion Ramon Areces.
Abstract: We gratefully acknowledge financial support from the Spanish Ministry of Science and Technology (Grants SEJ2006-09993, SEJ2007-64340/ECON and Ram¶on y Cajal fellowships) as well as from CREA and the Fundacion Ramon Areces.

179 citations

Journal ArticleDOI
TL;DR: The results indicate that retrieving ancient genomes from similarly warm Mediterranean environments such as the Near East is technically feasible and suggest that both Cardial and LBK peoples derived from a common ancient population located in or around the Balkan Peninsula.
Abstract: The spread of farming out of the Balkans and into the rest of Europe followed two distinct routes: An initial expansion represented by the Impressa and Cardial traditions, which followed the Northern Mediterranean coastline; and another expansion represented by the LBK (Linearbandkeramik) tradition, which followed the Danube River into Central Europe. Although genomic data now exist from samples representing the second migration, such data have yet to be successfully generated from the initial Mediterranean migration. To address this, we generated the complete genome of a 7,400-yearold Cardial individual (CB13) from Cova Bonica in Vallirana (Barcelona), as well as partial nuclear data from five others excavated from different sites in Spain and Portugal. CB13 clusters with all previously sequenced early European farmers and modern-day Sardinians. Furthermore, our analyses suggest that both Cardial and LBK peoples derived from a common ancient population located in or around the Balkan Peninsula. The Iberian Cardial genome also carries a discernible hunter‐gatherer genetic signature that likely was not acquired by admixture with local Iberian foragers. Our results indicate that retrieving ancient genomes from similarly warm Mediterranean environments such as the Near East is technically feasible.

179 citations

Journal ArticleDOI
TL;DR: In this article, the authors explore the role of countries and sectors as sources of institutional transfer at different stages of the diffusion process and demonstrate how the restructuring of national bureaucracies unfolds via four different channels.
Abstract: The autonomous regulatory agency has recently become the ‘appropriate model’ of governance across countries and sectors. The dynamics of this process is captured in our data set, which covers the creation of agencies in 48 countries and 16 sectors since the 1920s. Adopting a diffusion approach to explain this broad process of institutional change, we explore the role of countries and sectors as sources of institutional transfer at different stages of the diffusion process. We demonstrate how the restructuring of national bureaucracies unfolds via four different channels of institutional transfer. Our results challenge theoretical approaches that overemphasize the national dimension in global diffusion and are insensitive to the stages of the diffusion process. Further advance in study of diffusion depends, we assert, on the ability to apply both cross-sectoral and cross-national analysis to the same research design and to incorporate channels of transfer with different causal mechanisms for different stages of the diffusion process.

179 citations


Authors

Showing all 8248 results

NameH-indexPapersCitations
Andrei Shleifer171514271880
Paul Elliott153773103839
Bert Brunekreef12480681938
Philippe Aghion12250773438
Anjana Rao11833761395
Jordi Sunyer11579857211
Kenneth J. Arrow113411111221
Xavier Estivill11067359568
Roderic Guigó108304106914
Mark J. Nieuwenhuijsen10764749080
Jordi Alonso10752364058
Alfonso Valencia10654255192
Luis Serrano10545242515
Vadim N. Gladyshev10249034148
Josep M. Antó10049338663
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202349
2022248
20211,903
20201,930
20191,763
20181,660