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Träfflista för sökning "WFRF:(Meyer François) "

Sökning: WFRF:(Meyer François)

  • Resultat 1-10 av 23
  • [1]23Nästa
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1.
  • Al-Chalabi, Ammar, et al. (författare)
  • July 2017 ENCALS statement on edaravone
  • 2017
  • Ingår i: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. - Informa Healthcare. - 2167-8421. ; 18:7-8, s. 471-474
  • Tidskriftsartikel (refereegranskat)
2.
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3.
  • van Rheenen, Wouter, et al. (författare)
  • Genome-wide association analyses identify new risk variants and the genetic architecture of amyotrophic lateral sclerosis
  • 2016
  • Ingår i: Nature Genetics. - 1061-4036 .- 1546-1718. ; 48:9, s. 1043-1048
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>To elucidate the genetic architecture of amyotrophic lateral sclerosis (ALS) and find associated loci, we assembled a custom imputation reference panel from whole-genome-sequenced patients with ALS and matched controls (n = 1,861). Through imputation and mixed-model association analysis in 12,577 cases and 23,475 controls, combined with 2,579 cases and 2,767 controls in an independent replication cohort, we fine-mapped a new risk locus on chromosome 21 and identified C21orf2 as a gene associated with ALS risk. In addition, we identified MOBP and SCFD1 as new associated risk loci. We established evidence of ALS being a complex genetic trait with a polygenic architecture. Furthermore, we estimated the SNP-based heritability at 8.5%, with a distinct and important role for low-frequency variants (frequency 1-10%). This study motivates the interrogation of larger samples with full genome coverage to identify rare causal variants that underpin ALS risk.</p>
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4.
  • Al-Chalabi, Ammar, et al. (författare)
  • July 2017 ENCALS statement on edaravone
  • 2017
  • Ingår i: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. - TAYLOR & FRANCIS LTD. - 2167-8421 .- 2167-9223. ; 18:7-8, s. 471-474
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>n/a</p>
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5.
  • Al-Chalabi, Ammar, et al. (författare)
  • July 2017 ENCALS statement on edaravone
  • 2017
  • Ingår i: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. - Taylor & Francis. - 2167-8421 .- 2167-9223. ; 18:7-8, s. 471-474
  • Tidskriftsartikel (övrigt vetenskapligt)
6.
  • Al-Chalabi, Ammar, et al. (författare)
  • July 2017 ENCALS statement on edaravone
  • 2017
  • Ingår i: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. - 2167-8421 .- 2167-9223. ; 18:7-8, s. 471-474
  • Tidskriftsartikel (övrigt vetenskapligt)
7.
  • Birkhofer, Klaus, et al. (författare)
  • General Relationships between Abiotic Soil Properties and Soil Biota across Spatial Scales and Different Land-Use Types.
  • 2012
  • Ingår i: PLoS ONE. - Public Library of Science. - 1932-6203. ; 7:8
  • Tidskriftsartikel (refereegranskat)abstract
    • Very few principles have been unraveled that explain the relationship between soil properties and soil biota across large spatial scales and different land-use types. Here, we seek these general relationships using data from 52 differently managed grassland and forest soils in three study regions spanning a latitudinal gradient in Germany. We hypothesize that, after extraction of variation that is explained by location and land-use type, soil properties still explain significant proportions of variation in the abundance and diversity of soil biota. If the relationships between predictors and soil organisms were analyzed individually for each predictor group, soil properties explained the highest amount of variation in soil biota abundance and diversity, followed by land-use type and sampling location. After extraction of variation that originated from location or land-use, abiotic soil properties explained significant amounts of variation in fungal, meso- and macrofauna, but not in yeast or bacterial biomass or diversity. Nitrate or nitrogen concentration and fungal biomass were positively related, but nitrate concentration was negatively related to the abundances of Collembola and mites and to the myriapod species richness across a range of forest and grassland soils. The species richness of earthworms was positively correlated with clay content of soils independent of sample location and land-use type. Our study indicates that after accounting for heterogeneity resulting from large scale differences among sampling locations and land-use types, soil properties still explain significant proportions of variation in fungal and soil fauna abundance or diversity. However, soil biota was also related to processes that act at larger spatial scales and bacteria or soil yeasts only showed weak relationships to soil properties. We therefore argue that more general relationships between soil properties and soil biota can only be derived from future studies that consider larger spatial scales and different land-use types.
8.
  • Boccaletti, Anthony, et al. (författare)
  • Fast-moving features in the debris disk around AU Microscopii
  • 2015
  • Ingår i: Nature. - 0028-0836 .- 1476-4687. ; 526:7572, s. 230-
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>In the 1980s, excess infrared emission was discovered around main-sequence stars; subsequent direct-imaging observations revealed orbiting disks of cold dust to be the source(1). These 'debris disks' were thought to be by-products of planet formation because they often exhibited morphological and brightness asymmetries that may result from gravitational perturbation by planets. This was proved to be true for the beta Pictoris system, in which the known planet generates an observable warp in the disk(2-5). The nearby, young, unusually active late-type star AU Microscopii hosts a well-studied edge-on debris disk; earlier observations in the visible and near-infrared found asymmetric localized structures in the form of intensity variations along the midplane of the disk beyond a distance of 20 astronomical units(6-9). Here we report high-contrast imaging that reveals a series of five large-scale features in the southeast side of the disk, at projected separations of 10-60 astronomical units, persisting over intervals of 1-4 years. All these features appear to move away from the star at projected speeds of 4-10 kilometres per second, suggesting highly eccentric or unbound trajectories if they are associated with physical entities. The origin, localization, morphology and rapid evolution of these features are difficult to reconcile with current theories.</p>
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9.
  • Brawand, David, et al. (författare)
  • The genomic substrate for adaptive radiation in African cichlid fish
  • 2014
  • Ingår i: Nature. - 0028-0836 .- 1476-4687. ; 513:7518, s. 375-381
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Cichlid fishes are famous for large, diverse and replicated adaptive radiations in the Great Lakes of East Africa. To understand themolecular mechanisms underlying cichlid phenotypic diversity, we sequenced the genomes and transcriptomes of five lineages of African cichlids: the Nile tilapia (Oreochromis niloticus), an ancestral lineage with low diversity; and four members of the East African lineage: Neolamprologus brichardi/pulcher (older radiation, Lake Tanganyika), Metriaclima zebra (recent radiation, Lake Malawi), Pundamilia nyererei (very recent radiation, Lake Victoria), and Astatotilapia burtoni (riverine species around Lake Tanganyika). We found an excess of gene duplications in the East African lineage compared to tilapia and other teleosts, an abundance of non-coding element divergence, accelerated coding sequence evolution, expression divergence associated with transposable element insertions, and regulation by novel microRNAs. In addition, we analysed sequence data from sixty individuals representing six closely related species from Lake Victoria, and show genome-wide diversifying selection on coding and regulatory variants, some of which were recruited from ancient polymorphisms. We conclude that a number of molecular mechanisms shaped East African cichlid genomes, and that amassing of standing variation during periods of relaxed purifying selection may have been important in facilitating subsequent evolutionary diversification.</p>
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10.
  • De Leoz, M. L. A., et al. (författare)
  • NIST Interlaboratory Study on Glycosylation Analysis of Monoclonal Antibodies: Comparison of Results from Diverse Analytical Methods
  • 2020
  • Ingår i: Molecular & Cellular Proteomics. - 1535-9476. ; 19:1, s. 11-30
  • Tidskriftsartikel (refereegranskat)abstract
    • A broad-based interlaboratory study of glycosylation profiles of a reference and modified IgG antibody involving 103 reports from 76 laboratories. Glycosylation is a topic of intense current interest in the development of biopharmaceuticals because it is related to drug safety and efficacy. This work describes results of an interlaboratory study on the glycosylation of the Primary Sample (PS) of NISTmAb, a monoclonal antibody reference material. Seventy-six laboratories from industry, university, research, government, and hospital sectors in Europe, North America, Asia, and Australia submitted a total of 103 reports on glycan distributions. The principal objective of this study was to report and compare results for the full range of analytical methods presently used in the glycosylation analysis of mAbs. Therefore, participation was unrestricted, with laboratories choosing their own measurement techniques. Protein glycosylation was determined in various ways, including at the level of intact mAb, protein fragments, glycopeptides, or released glycans, using a wide variety of methods for derivatization, separation, identification, and quantification. Consequently, the diversity of results was enormous, with the number of glycan compositions identified by each laboratory ranging from 4 to 48. In total, one hundred sixteen glycan compositions were reported, of which 57 compositions could be assigned consensus abundance values. These consensus medians provide community-derived values for NISTmAb PS. Agreement with the consensus medians did not depend on the specific method or laboratory type. The study provides a view of the current state-of-the-art for biologic glycosylation measurement and suggests a clear need for harmonization of glycosylation analysis methods.
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