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Institution

Karolinska Institutet

EducationStockholm, Sweden
About: Karolinska Institutet is a education organization based out in Stockholm, Sweden. It is known for research contribution in the topics: Population & Cancer. The organization has 46212 authors who have published 121142 publications receiving 6008130 citations.


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Journal ArticleDOI
TL;DR: Worldwide cooperative analyses of brain imaging data support a profile of subcortical abnormalities in schizophrenia, which is consistent with that based on traditional meta-analytic approaches, and validates that collaborative data analyses can readily be used across brain phenotypes and disorders.
Abstract: The profile of brain structural abnormalities in schizophrenia is still not fully understood, despite decades of research using brain scans. To validate a prospective meta-analysis approach to analyzing multicenter neuroimaging data, we analyzed brain MRI scans from 2028 schizophrenia patients and 2540 healthy controls, assessed with standardized methods at 15 centers worldwide. We identified subcortical brain volumes that differentiated patients from controls, and ranked them according to their effect sizes. Compared with healthy controls, patients with schizophrenia had smaller hippocampus (Cohen's d=-0.46), amygdala (d=-0.31), thalamus (d=-0.31), accumbens (d=-0.25) and intracranial volumes (d=-0.12), as well as larger pallidum (d=0.21) and lateral ventricle volumes (d=0.37). Putamen and pallidum volume augmentations were positively associated with duration of illness and hippocampal deficits scaled with the proportion of unmedicated patients. Worldwide cooperative analyses of brain imaging data support a profile of subcortical abnormalities in schizophrenia, which is consistent with that based on traditional meta-analytic approaches. This first ENIGMA Schizophrenia Working Group study validates that collaborative data analyses can readily be used across brain phenotypes and disorders and encourages analysis and data sharing efforts to further our understanding of severe mental illness.

919 citations

Journal ArticleDOI
Amy Strange1, Francesca Capon2, Chris C. A. Spencer1, Jo Knight, Michael E. Weale2, Michael H. Allen2, Anne Barton3, Gavin Band1, Céline Bellenguez1, Judith G.M. Bergboer4, Jenefer M. Blackwell, Elvira Bramon, Suzannah Bumpstead5, Juan P. Casas6, Michael J. Cork7, Aiden Corvin8, Panos Deloukas5, Alexander T. Dilthey1, Audrey Duncanson9, Sarah Edkins5, Xavier Estivill, Oliver FitzGerald, Colin Freeman9, Emiliano Giardina, Emma Gray5, Angelika Hofer10, Ulrike Hüffmeier11, Sarah E. Hunt5, Alan D. Irvine8, Janusz Jankowski12, Brian Kirby, Cordelia Langford5, Jesús Lascorz, Joyce Leman13, Stephen Leslie1, Lotus Mallbris14, Hugh S. Markus15, Christopher G. Mathew2, W.H. Irwin McLean16, Ross McManus8, Rotraut Mössner17, Loukas Moutsianas1, Åsa Torinsson Naluai18, Frank O. Nestle, Giuseppe Novelli, Alexandros Onoufriadis2, Colin N. A. Palmer16, Carlo Perricone19, Matti Pirinen1, Robert Plomin2, Simon C. Potter5, Ramon M. Pujol, Anna Rautanen9, Eva Riveira-Muñoz, Anthony W. Ryan8, Wolfgang Salmhofer10, Lena Samuelsson18, Stephen Sawcer20, Joost Schalkwijk4, Catherine H. Smith, Mona Ståhle14, Zhan Su9, Rachid Tazi-Ahnini7, Heiko Traupe21, Ananth C. Viswanathan22, Ananth C. Viswanathan23, Richard B. Warren3, Wolfgang Weger10, Katarina Wolk14, Nicholas W. Wood, Jane Worthington3, Helen S. Young3, Patrick L.J.M. Zeeuwen4, Adrian Hayday, A. David Burden, Christopher E.M. Griffiths3, Juha Kere, André Reis11, Gilean McVean1, David M. Evans24, Matthew A. Brown, Jonathan Barker, Leena Peltonen5, Peter Donnelly1, Peter Donnelly9, Richard C. Trembath 
TL;DR: These findings implicate pathways that integrate epidermal barrier dysfunction with innate and adaptive immune dysregulation in psoriasis pathogenesis and report compelling evidence for an interaction between the HLA-C and ERAP1 loci.
Abstract: To identify new susceptibility loci for psoriasis, we undertook a genome-wide association study of 594,224 SNPs in 2,622 individuals with psoriasis and 5,667 controls. We identified associations at eight previously unreported genomic loci. Seven loci harbored genes with recognized immune functions (IL28RA, REL, IFIH1, ERAP1, TRAF3IP2, NFKBIA and TYK2). These associations were replicated in 9,079 European samples (six loci with a combined P < 5 × 10⁻⁸ and two loci with a combined P < 5 × 10⁻⁷). We also report compelling evidence for an interaction between the HLA-C and ERAP1 loci (combined P = 6.95 × 10⁻⁶). ERAP1 plays an important role in MHC class I peptide processing. ERAP1 variants only influenced psoriasis susceptibility in individuals carrying the HLA-C risk allele. Our findings implicate pathways that integrate epidermal barrier dysfunction with innate and adaptive immune dysregulation in psoriasis pathogenesis.

919 citations

Journal ArticleDOI
TL;DR: Evidence for brain maintenance at different levels is discussed: cellular, neurochemical, gray- and white-matter integrity, and systems-level activation patterns, and it is argued that it constitutes the primary determinant of successful memory aging.

918 citations

Journal ArticleDOI
TL;DR: The CDP-reductase system was purified from E. coli 13 a low molecular weight, heat-stable protein, hereafter called thioredoxin, and the requirement for reduced lipoate was replaced by either catalytic amounts of thiOREDoxin + TPNH or substrate amounts of chemically reduced dihydrothiored toxin.

916 citations

Journal ArticleDOI
03 Nov 2011-Nature
TL;DR: This work provides the first evidence that a DNA-binding protein, CCCTC-binding factor (CTCF), can promote inclusion of weak upstream exons by mediating local RNA polymerase II pausing both in a mammalian model system for alternative splicing, CD45, and genome-wide.
Abstract: Alternative splicing of pre-messenger RNA is a key feature of transcriptome expansion in eukaryotic cells, yet its regulation is poorly understood. Spliceosome assembly occurs co-transcriptionally, raising the possibility that DNA structure may directly influence alternative splicing. Supporting such an association, recent reports have identified distinct histone methylation patterns, elevated nucleosome occupancy and enriched DNA methylation at exons relative to introns. Moreover, the rate of transcription elongation has been linked to alternative splicing. Here we provide the first evidence that a DNA-binding protein, CCCTC-binding factor (CTCF), can promote inclusion of weak upstream exons by mediating local RNA polymerase II pausing both in a mammalian model system for alternative splicing, CD45, and genome-wide. We further show that CTCF binding to CD45 exon 5 is inhibited by DNA methylation, leading to reciprocal effects on exon 5 inclusion. These findings provide a mechanistic basis for developmental regulation of splicing outcome through heritable epigenetic marks.

916 citations


Authors

Showing all 46522 results

NameH-indexPapersCitations
Meir J. Stampfer2771414283776
Albert Hofman2672530321405
Guido Kroemer2361404246571
Eric B. Rimm196988147119
Scott M. Grundy187841231821
Jing Wang1844046202769
Tadamitsu Kishimoto1811067130860
John Hardy1771178171694
Marc G. Caron17367499802
Ramachandran S. Vasan1721100138108
Adrian L. Harris1701084120365
Douglas F. Easton165844113809
Zulfiqar A Bhutta1651231169329
Judah Folkman165499148611
Ralph A. DeFronzo160759132993
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023101
2022500
20217,763
20206,922
20196,057
20185,548