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Michael R. Barnes
Queen Mary University of London
Genome-wide association studyGeneticsBioinformaticsMedicineBiology
246Publications
41H-index
8,824Citations
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Publications 228
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#1Alessandra Mancini (QMUL: Queen Mary University of London)H-Index: 2
#2Sasha Howard (QMUL: Queen Mary University of London)H-Index: 7
Last. Alessia David (Imperial College London)H-Index: 10
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The initiation of puberty is driven by an upsurge in hypothalamic gonadotropin-releasing hormone (GnRH) secretion. In turn, GnRH secretion upsurge depends on the development of a complex GnRH neuroendocrine network during embryonic life. Although delayed puberty (DP) affects up to 2% of the population, is highly heritable, and is associated with adverse health outcomes, the genes underlying DP remain largely unknown. We aimed to discover regulators by whole-exome sequencing of 160 individuals of...
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#1Roelof A.J. Smit (LUMC: Leiden University Medical Center)H-Index: 9
#3Stella Trompet (LUMC: Leiden University Medical Center)H-Index: 57
Last. J. W. Jukema (LUMC: Leiden University Medical Center)H-Index: 114
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It remains unclear whether the increased risk of new-onset type 2 diabetes (T2D) seen in statin users is due to low LDL-C concentrations, or due to the statin-induced proportional change in LDL-C. In addition, genetic instruments have not been proposed before to examine whether liability to T2D might cause greater proportional statin-induced LDL-C lowering. Using summary-level statistics from the Genomic Investigation of Statin Therapy (GIST, nmax = 40,914) and DIAGRAM (nmax = 159,208) consortia...
1 CitationsSource
#1Ioanna Ntalla (QMUL: Queen Mary University of London)H-Index: 32
#2Lu-Chen Weng (Broad Institute)H-Index: 20
Last. Michael R. Barnes (NIHR: National Institute for Health Research)H-Index: 41
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The electrocardiographic PR interval reflects atrioventricular conduction, and is associated with conduction abnormalities, pacemaker implantation, atrial fibrillation (AF), and cardiovascular mortality. Here we report a multi-ancestry (N = 293,051) genome-wide association meta-analysis for the PR interval, discovering 202 loci of which 141 have not previously been reported. Variants at identified loci increase the percentage of heritability explained, from 33.5% to 62.6%. We observe enrichment ...
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#1Hannah L. Nicholls (QMUL: Queen Mary University of London)H-Index: 1
#2Christopher R. John (QMUL: Queen Mary University of London)H-Index: 3
Last. Claudia P. Cabrera (QMUL: Queen Mary University of London)H-Index: 15
view all 6 authors...
Genome-wide association studies (GWAS) have revealed thousands of genetic loci that underpin the complex biology of many human traits. However, the strength of GWAS – the ability to detect genetic association by linkage disequilibrium (LD) – is also its limitation. Whilst the ever-increasing study size and improved design have augmented the power of GWAS to detect effects, differentiation of causal variants or genes from other highly correlated genes associated by LD remains the real challenge. ...
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#1Christopher R. John (QMUL: Queen Mary University of London)H-Index: 3
#2David Watson (University of Oxford)H-Index: 18
Last. Michael R. Barnes (QMUL: Queen Mary University of London)H-Index: 41
view all 8 authors...
Genome-wide data is used to stratify patients into classes for precision medicine using clustering algorithms. A common problem in this area is selection of the number of clusters (K). The Monti consensus clustering algorithm is a widely used method which uses stability selection to estimate K. However, the method has bias towards higher values of K and yields high numbers of false positives. As a solution, we developed Monte Carlo reference-based consensus clustering (M3C), which is based on th...
1 CitationsSource
#1Barbara Ricci (QMUL: Queen Mary University of London)H-Index: 1
#2Thomas O. Millner (QMUL: Queen Mary University of London)H-Index: 2
Last. Ying Zhang (UCLH: University College London Hospitals NHS Foundation Trust)H-Index: 1
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Glioblastoma (GBM) is the most common and most aggressive intrinsic brain tumour in adults. Integrated transcriptomic and epigenomic analyses of glioblastoma initiating cells (GIC) in a mouse model uncovered a novel epigenetic regulation of EfnA5. In this model, Bmi1 enhances H3K27me3 at the EfnA5 locus and reinforces repression of selected target genes in a cellular context-dependent fashion. EfnA5 mediates Bmi1-dependent proliferation and invasion in vitro and tumour formation in an allograft ...
2 CitationsSource
#1Michael R. Barnes (QMUL: Queen Mary University of London)H-Index: 41
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#1Claudia P. Cabrera (QMUL: Queen Mary University of London)H-Index: 15
#2Fu Liang Ng (QMUL: Queen Mary University of London)H-Index: 9
Last. Mark J. Caulfield (QMUL: Queen Mary University of London)H-Index: 97
view all 7 authors...
: High blood pressure (BP) remains the major heritable and modifiable risk factor for cardiovascular disease. Persistent high BP, or hypertension, is a complex trait with both genetic and environmental interactions. Despite swift advances in genomics, translating new discoveries to further our understanding of the underlying molecular mechanisms remains a challenge. More than 500 loci implicated in the regulation of BP have been revealed by genome-wide association studies (GWAS) in 2018 alone, t...
1 CitationsSource
#1Johan Aarum (QMUL: Queen Mary University of London)H-Index: 4
#2Claudia P. Cabrera (QMUL: Queen Mary University of London)H-Index: 15
Last. Denise Sheer (QMUL: Queen Mary University of London)H-Index: 51
view all 9 authors...
Most proteins in cell and tissue lysates are soluble. Here, we show that many of these proteins, including several that are implicated in neurodegenerative diseases, are maintained in a soluble and functional state by association with endogenous RNA, as degradation of RNA invariably leads to protein aggregation. We identify the importance of nucleic acid structure, with single-stranded pyrimidine-rich bulges or loops surrounded by double-stranded regions being particularly efficient in this role...
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#1Alessandra ManciniH-Index: 2
#2Sasha HowardH-Index: 7
Last. Leo DunkelH-Index: 54
view all 11 authors...
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