Using data from 25,000 people, researchers from the Faculty of Medicine and University College London's Institute of Neurology discovered that a rare genetic mutation in the TREM2 gene — which helps trigger immune system responses — is also associated with increased risk of Alzheimer's. The discovery supports an emerging theory about the role of the immune system in the disease.
"This discovery provides an increasingly firm link between brain inflammation and increased risk for Alzheimer's," says Dr. Peter St George-Hyslop, director of U of T's Tanz Centre for Research in Neurodegenerative Diseases. "This is an important step towards unraveling the hidden causes of this disease, so that we can develop treatments and interventions to end one of the 21st century's most significant health challenges."
St George-Hyslop, renowned for identifying five genes associated with Alzheimer's disease, says the breakthrough is, "another win for U of T scientists who are building on a worldwide legacy of expertise in neurodegenerative research."
The team began by sequencing the genes of 1,092 people with Alzheimer's and a control group of 1,107 healthy people. The results showed several mutations in the TREM2 gene occurred more frequently in people who had the disease than in those without the disease. One mutation – known as R47H – had a particularly strong association with the disease.
The mutation makes a patient three times more likely to develop the disease, although it affects just 0.3 per cent of the population.
"While the genetic mutation we found is extremely rare, its effect on the immune system is a strong indicator that this system may be a key player in the disease," says Dr. Rita Geurreiro from UCL, the study's lead author.
The study is published now in the New England Journal of Medicine.
Nicole Bodnar | EurekAlert!
Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery
20.01.2017 | GSI Helmholtzzentrum für Schwerionenforschung GmbH
Seeking structure with metagenome sequences
20.01.2017 | DOE/Joint Genome Institute
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences