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Sökning: WFRF:(Glass D)

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61.
  • Glass, Jayne, et al. (författare)
  • Learning from European Rural Movements : Research to inform a Scottish approach
  • 2022
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • To inform the development of a rural movement in Scotland, this report explores the key characteristics, roles and methods of engagement employed by established rural movements in other European countries.We studied rural movements in 10 countries (Albania, England, Estonia, Finland, Ireland, Latvia, Lithuania, the Netherlands, Northern Ireland, Sweden). We collected information via a desk-based review of relevant literature, interviews with representatives from each of the movements, and an online seminar to discuss the initial findings (hosted by the EuropeanRural Communities Alliance).We identified six overarching themes with associated learning points for Scotland. The themes relate to the structure of the organisation, collaboration, purpose, activities, relationship with government, and place-based action.The findings demonstrate how rural movements represent an organised approach to providing a network and voice for rural areas, their people and those working to support rural development. An important role for the movements is advocacy to shape local, regional and national policy, while another important role is enabling shared learning and knowledge exchange. The character of each movement reflects and responds to the national context in which it operates, including the system of administration and culture.Three insights can be put forward from this research to inform the Scottish approach. We suggest that these are used as a basis for ongoing discussions between Scottish Government, Scottish Rural Action and others seeking to develop an effective and impactful Scottish rural movement:A Scottish rural movement should bring together diverse actors to inform and influence policy.A Scottish rural movement needs a clear identity and clarity of purpose related to networking and knowledge sharing.A Scottish rural movement should be supported to develop constructive relationships with LEADER LAGs and staff to ensure that the movement represents local issues and needs effectively.
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62.
  • Grundberg, Elin, et al. (författare)
  • Mapping cis- and trans-regulatory effects across multiple tissues in twins.
  • 2012
  • Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 44:10
  • Tidskriftsartikel (refereegranskat)abstract
    • Sequence-based variation in gene expression is a key driver of disease risk. Common variants regulating expression in cis have been mapped in many expression quantitative trait locus (eQTL) studies, typically in single tissues from unrelated individuals. Here, we present a comprehensive analysis of gene expression across multiple tissues conducted in a large set of mono- and dizygotic twins that allows systematic dissection of genetic (cis and trans) and non-genetic effects on gene expression. Using identity-by-descent estimates, we show that at least 40% of the total heritable cis effect on expression cannot be accounted for by common cis variants, a finding that reveals the contribution of low-frequency and rare regulatory variants with respect to both transcriptional regulation and complex trait susceptibility. We show that a substantial proportion of gene expression heritability is trans to the structural gene, and we identify several replicating trans variants that act predominantly in a tissue-restricted manner and may regulate the transcription of many genes.
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63.
  • ILAG, LL, et al. (författare)
  • Pan-neurotrophin 1: a genetically engineered neurotrophic factor displaying multiple specificities in peripheral neurons in vitro and in vivo
  • 1995
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424. ; 92:2, s. 607-611
  • Tidskriftsartikel (refereegranskat)abstract
    • Pan-neurotrophin 1 (PNT-1) is a synthetic trophic factor engineered by combining active domains of the neurotrophins nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and neurotrophin 3 (NT-3) into an NT-3 backbone. This molecule was produced in transiently transfected COS cells or in baculovirus-infected insect cells transfected COS cells or in baculovirus-infected insect cells and subsequently purified to homogeneity. Saturation binding in embryonic spinal sensory neurons demonstrated a greater number of high-affinity binding sites for PNT-1 than for its parental molecule NT-3. PNT-1 was shown to efficiently block the chemical crosslinking of NGF, BDNF, and NT-3 to their cognate Trk receptors and to the low-affintiy NGF receptor expressed on neuronal and nonneuronal cells. PNT-1 stimulated survival and proliferation of MG87 fibroblasts expressing either TrkA, TrkB, or TrkC. PNT-1 also promoted survival of a greater number of embryonic dorsal root ganglion neurons than any of the other neurotrophins alone, and its effects were equivalent to a combination of NGF, BDNF, and NT-3. Analysis of receptor-specific neurotrophic activities demonstrated that PNT-1 efficiently rescued TrkA mRNA-containing sympathetic neurons and TrkB and TrkC mRNA-containing sensory neurons from the dorsal root and nodose ganglia. Finally, PNT-1 showed robust retrograde transport to DRG neurons in vivo after injection into the sciatic nerve. Radiolabeled PNT-1 accumulated in small-, medium-, and large-sized neurons. Coinjection with different unlabeled neurotrophins inhibited PNT-1 transport in distinct subpopulations of neurons of different sizes, suggesting that this molecule affects sensory neurons of different modalities. These results indicate that PNT-1 is a potent and multispecific neurotrophic factor that may be useful in the treatment of peripheral neurophathies and nerve damage.
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64.
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65.
  • Keildson, Sarah, et al. (författare)
  • Expression of phosphofructokinase in skeletal muscle is influenced by genetic variation and associated with insulin sensitivity.
  • 2014
  • Ingår i: Diabetes. - : American Diabetes Association. - 0012-1797 .- 1939-327X. ; 63:3
  • Tidskriftsartikel (refereegranskat)abstract
    • Using an integrative approach in which genetic variation, gene expression, and clinical phenotypes are assessed in relevant tissues may help functionally characterize the contribution of genetics to disease susceptibility. We sought to identify genetic variation influencing skeletal muscle gene expression (expression quantitative trait loci [eQTLs]) as well as expression associated with measures of insulin sensitivity. We investigated associations of 3,799,401 genetic variants in expression of >7,000 genes from three cohorts (n = 104). We identified 287 genes with cis-acting eQTLs (false discovery rate [FDR] <5%; P < 1.96 × 10(-5)) and 49 expression-insulin sensitivity phenotype associations (i.e., fasting insulin, homeostasis model assessment-insulin resistance, and BMI) (FDR <5%; P = 1.34 × 10(-4)). One of these associations, fasting insulin/phosphofructokinase (PFKM), overlaps with an eQTL. Furthermore, the expression of PFKM, a rate-limiting enzyme in glycolysis, was nominally associated with glucose uptake in skeletal muscle (P = 0.026; n = 42) and overexpressed (Bonferroni-corrected P = 0.03) in skeletal muscle of patients with T2D (n = 102) compared with normoglycemic controls (n = 87). The PFKM eQTL (rs4547172; P = 7.69 × 10(-6)) was nominally associated with glucose uptake, glucose oxidation rate, intramuscular triglyceride content, and metabolic flexibility (P = 0.016-0.048; n = 178). We explored eQTL results using published data from genome-wide association studies (DIAGRAM and MAGIC), and a proxy for the PFKM eQTL (rs11168327; r(2) = 0.75) was nominally associated with T2D (DIAGRAM P = 2.7 × 10(-3)). Taken together, our analysis highlights PFKM as a potential regulator of skeletal muscle insulin sensitivity.
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66.
  • Keskin, Isil, et al. (författare)
  • Comprehensive analysis to explain reduced or increased SOD1 enzymatic activity in ALS patients and their relatives
  • 2017
  • Ingår i: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. - : TAYLOR & FRANCIS LTD. - 2167-8421 .- 2167-9223. ; 18:5-6, s. 457-463
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To characterise stabilities in erythrocytes of mutant SOD1 proteins, compare SOD1 enzymatic activities between patients with different genetic causes of ALS and search for underlying causes of deviant SOD1 activities in individuals lacking SOD1 mutations.Methods: Blood samples from 4072 individuals, ALS patients with or without a SOD1 mutation, family members and controls were studied. Erythrocyte SOD1 enzymatic activities normalised to haemoglobin content were determined, and effects of haemoglobin disorders on dismutation assessed. Coding SOD1 sequences were analysed by Sanger sequencing, exon copy number variations by fragment length analysis and by TaqMan Assay.Results: Of the 44 SOD1 mutations found, 75% caused severe destabilisation of the mutant protein but in 25% it was physically stable. Mutations producing structural changes caused halved erythrocyte SOD1 activities. There were no differences in SOD1 activities between patients without a SOD1 mutation and control individuals or carriers of TBK1 mutations and C9orf72(HRE). In the low and high SOD1 activity groups no deviations were found in exon copy numbers and intron gross structures. Thalassemias and iron deficiency were associated with increased SOD1 activity/haemoglobin ratios.Conclusion: Adjunct erythrocyte SOD1 activity analysis reliably signals destabilising SOD1 mutations including intronic mutations that are missed by exon sequencing.
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67.
  • Keskin, Isil, 1987-, et al. (författare)
  • Comprehensive analysis to explain reduced or increased SOD1 enzymatic activity in erythrocytes in ALS patients and their relatives
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Our objective was to in blood samples from 3723 individuals including ALS patients without a coding SOD1 mutation and 372 control individuals characterize stabilities of mutant SOD1s, compare SOD1 enzymatic activities between patients with different genetic causes of ALS, and search for underlying causes of deviant SOD1 activities in individuals lacking SOD1 mutations. Erythrocyte SOD1 enzymatic activities normalized to hemoglobin content were determined. Coding SOD1 sequences were analyzed by Sanger sequencing, copy number variations by fragment length analysis and by TaqMan Assay. Hemoglobin disorders were searched for. Of the 46 SOD1 mutations found, ¾ caused severe destabilization of the mutant protein but in ¼ SOD1 was essentially physically stable. Mutations producing structural changes all caused halved SOD activities. There were no differences in SOD1 activities between controls and patients without any detected SOD1 mutations or patients with C9ORF72HRE or TBK1 mutations. In the low and high SOD1 activity groups no deviations were found in exon copy numbers and intron gross structures. Also, no uncommon variants in exon-flanking sequences were detected. Thalassemias and iron deficiency anemia were associated with increased SOD1 activity/hemoglobin ratios. In conclusion, adjunct erythrocyte SOD activity analysis is of value to signal the presence of exon and splice-site-intron mutations that influence the SOD1 structure.
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68.
  • Link, Verena M, et al. (författare)
  • Analysis of Genetically Diverse Macrophages Reveals Local and Domain-wide Mechanisms that Control Transcription Factor Binding and Function.
  • 2018
  • Ingår i: Cell. - Cambridge, United States : Cell Press. - 0092-8674 .- 1097-4172. ; 173:7, s. 1796-1809.e17
  • Tidskriftsartikel (refereegranskat)abstract
    • Non-coding genetic variation is a major driver of phenotypic diversity and allows the investigation of mechanisms that control gene expression. Here, we systematically investigated the effects of >50 million variations from five strains of mice on mRNA, nascent transcription, transcription start sites, and transcription factor binding in resting and activated macrophages. We observed substantial differences associated with distinct molecular pathways. Evaluating genetic variation provided evidence for roles of ∼100 TFs in shaping lineage-determining factor binding. Unexpectedly, a substantial fraction of strain-specific factor binding could not be explained by local mutations. Integration of genomic features with chromatin interaction data provided evidence for hundreds of connected cis-regulatory domains associated with differences in transcription factor binding and gene expression. This system and the >250 datasets establish a substantial new resource for investigation of how genetic variation affects cellular phenotypes.
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69.
  • Moisse, Matthieu, et al. (författare)
  • The Effect of SMN Gene Dosage on ALS Risk and Disease Severity
  • 2021
  • Ingår i: Annals of Neurology. - : John Wiley & Sons. - 0364-5134 .- 1531-8249. ; 89:4, s. 686-697
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: The role of the survival of motor neuron (SMN) gene in amyotrophic lateral sclerosis (ALS) is unclear, with several conflicting reports. A decisive result on this topic is needed, given that treatment options are available now for SMN deficiency.Methods: In this largest multicenter case control study to evaluate the effect of SMN1 and SMN2 copy numbers in ALS, we used whole genome sequencing data from Project MinE data freeze 2. SMN copy numbers of 6,375 patients with ALS and 2,412 controls were called from whole genome sequencing data, and the reliability of the calls was tested with multiplex ligation-dependent probe amplification data.Results: The copy number distribution of SMN1 and SMN2 between cases and controls did not show any statistical differences (binomial multivariate logistic regression SMN1 p = 0.54 and SMN2 p = 0.49). In addition, the copy number of SMN did not associate with patient survival (Royston-Parmar; SMN1 p = 0.78 and SMN2 p = 0.23) or age at onset (Royston-Parmar; SMN1 p = 0.75 and SMN2 p = 0.63).Interpretation: In our well-powered study, there was no association of SMN1 or SMN2 copy numbers with the risk of ALS or ALS disease severity. This suggests that changing SMN protein levels in the physiological range may not modify ALS disease course. This is an important finding in the light of emerging therapies targeted at SMN deficiencies.
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70.
  • Neuwirth, Christoph, et al. (författare)
  • Implementing Motor Unit Number Index (MUNIX) in a large clinical trial : Real world experience from 27 centres
  • 2018
  • Ingår i: Clinical Neurophysiology. - : Elsevier. - 1388-2457 .- 1872-8952. ; 129:8, s. 1756-1762
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Motor Unit Number Index (MUNIX) is a quantitative neurophysiological method that reflects loss of motor neurons in Amyotrophic Lateral Sclerosis (ALS) in longitudinal studies. It has been utilized in one natural history ALS study and one drug trial (Biogen USA) after training and qualification of raters.METHODS: Prior to testing patients, evaluators had to submit test-retest data of 4 healthy volunteers. Twenty-seven centres with 36 raters measured MUNIX in 4 sets of 6 different muscles twice. Coefficient of variation of all measurements had to be <20% to pass the qualification process. MUNIX COV of the first attempt, number of repeated measurements and muscle specific COV were evaluated.RESULTS: COV varied considerably between raters. Mean COV of all raters at the first measurements was 12.9% ± 13.5 (median 8.7%). Need of repetitions ranged from 0 to 43 (mean 10.7 ± 9.1, median 8). Biceps and first dorsal interosseus muscles showed highest repetition rates. MUNIX variability correlated considerably with variability of compound muscle action potential.CONCLUSION: MUNIX revealed generally good reliability, but was rater dependent and ongoing support for raters was needed.SIGNIFICANCE: MUNIX can be implemented in large clinical trials as an outcome measure after training and a qualification process.
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