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Institution

John Radcliffe Hospital

HealthcareOxford, Oxfordshire, United Kingdom
About: John Radcliffe Hospital is a healthcare organization based out in Oxford, Oxfordshire, United Kingdom. It is known for research contribution in the topics: Population & Antigen. The organization has 14491 authors who have published 23670 publications receiving 1459015 citations.


Papers
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Journal ArticleDOI
TL;DR: Short-term motor-skill learning is associated with a progressive reduction of widely distributed activations in cortical regions responsible for executive functions, processing somatosensory feedback and motor planning, suggesting that early performance gains rely strongly on prefrontal-caudate interactions with later increased activity in a subcortical circuit involving the cerebellum and basal ganglia as the task becomes more automatic.
Abstract: Learning a motor skill is associated with changes in patterns of brain activation with movement. Here we have further characterized these dynamics during fast (short-term) learning of a visuomotor ...

318 citations

Journal ArticleDOI
TL;DR: The role of complement-mediated inflammation in Alzheimer disease has drawn greater attention recently in view of new therapeutic advances made in the management of the disease, and recent vaccination and immunotherapeutic approaches are updated.

318 citations

Journal ArticleDOI
TL;DR: Scanning the malaria parasite genome for evidence of recent selection may prove an extremely effective way to locate genes underlying recently evolved traits such as drug resistance, as well as providing an opportunity to study the dynamics of selective events that have occurred recently or are currently in progress.
Abstract: Malaria parasites (Plasmodium falciparum) provide an excellent system in which to study the genomic effects of strong selection in a recombining eukaryote because the rapid spread of resistance to multiple drugs during the last the past 50 years has been well documented, the full genome sequence and a microsatellite map are now available, and haplotype data can be easily generated. We examined microsatellite variation around the dihydrofolate reductase (dhfr) gene on chromosome 4 of P. falciparum. Point mutations in dhfr are known to be responsible for resistance to the antimalarial drug pyrimethamine, and resistance to this drug has spread rapidly in Southeast (SE) Asia after its introduction in 1970s. We genotyped 33 microsatellite markers distributed across chromosome 4 in 61 parasites from a location on the Thailand/Myanmar border. We observed minimal microsatellite length variation in a 12-kb (0.7-cM) region flanking the dhfr gene and diminished variation for approximately 100 kb (6 cM), indicative of a single origin of resistant alleles. Furthermore, we found the same or similar microsatellite haplotypes flanked resistant dhfr alleles sampled from 11 parasite populations in five SE Asian countries indicating recent invasion of a single lineage of resistant dhfr alleles in locations 2000 km apart. Three features of these data are of especially interest. (1). Pyrimethamine resistance is generally assumed to have evolved multiple times because the genetic basis is simple and resistance can be selected easily in the laboratory. Yet our data clearly indicate a single origin of resistant dhfr alleles sampled over a large region of SE Asia. (2). The wide valley ( approximately 6 cM) of reduced variation around dhfr provides "proof-of-principle" that genome-wide association may be an effective way to locate genes under strong recent selection. (3). The width of the selective valley is consistent with predictions based on independent measures of recombination, mutation, and selection intensity, suggesting that we have reasonable estimates of these parameters. We conclude that scanning the malaria parasite genome for evidence of recent selection may prove an extremely effective way to locate genes underlying recently evolved traits such as drug resistance, as well as providing an opportunity to study the dynamics of selective events that have occurred recently or are currently in progress.

317 citations

Journal ArticleDOI
TL;DR: Endoscopy services across Europe are recommended to adopt the following seven key performance measures for lower gastrointestinal endoscopy for measurement and evaluation in daily practice at a center and endoscopist level.
Abstract: The European Society of Gastrointestinal Endoscopy and United European Gastroenterology present a short list of key performance measures for lower gastrointestinal endoscopy. We recommend that endoscopy services across Europe adopt the following seven key performance measures for lower gastrointestinal endoscopy for measurement and evaluation in daily practice at a center and endoscopist level: 1 rate of adequate bowel preparation (minimum standard 90%); 2 cecal intubation rate (minimum standard 90%); 3 adenoma detection rate (minimum standard 25%); 4 appropriate polypectomy technique (minimum standard 80%); 5 complication rate (minimum standard not set); 6 patient experience (minimum standard not set); 7 appropriate post-polypectomy surveillance recommendations (minimum standard not set). Other identified performance measures have been listed as less relevant based on an assessment of their importance, scientific acceptability, feasibility, usability, and comparison to competing measures.

317 citations

Journal ArticleDOI
01 May 1999-Blood
TL;DR: The present cases of ALCL associated with a novel t(1;2)(q25;p23) translocation demonstrate that at least one fusion partner other than NPM can activate the intracytoplasmic domain of the ALK kinase.

316 citations


Authors

Showing all 14542 results

NameH-indexPapersCitations
Douglas G. Altman2531001680344
Salim Yusuf2311439252912
David J. Hunter2131836207050
Mark I. McCarthy2001028187898
Stuart H. Orkin186715112182
Richard Peto183683231434
Ralph M. Steinman171453121518
Adrian L. Harris1701084120365
Rory Collins162489193407
Nicholas J. White1611352104539
David W. Johnson1602714140778
David Cella1561258106402
Edmund T. Rolls15361277928
Martin A. Nowak14859194394
Kypros H. Nicolaides147130287091
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202311
202252
20211,048
20201,013
2019916
2018773