People with a specific combination of variants of two genes, encoding two different receptors for the antibody Fc gamma, are three times more likely to develop rheumatoid arthritis than individuals with different variant combinations. A study published today in the journal Arthritis Research & Therapy confirms previous findings of an association between the Fc gamma Receptor (FCGR) gene family and rheumatoid arthritis (RA). The study shows that a specific variant combination of two FCGR genes on chromosome one, a FCGR3A-FCGR3B haplotype, makes people more susceptible to RA.
Ann Morgan, from the University of Leeds, and colleagues from other institutions in the UK studied the frequency of various FCGR haplotypes in a group of UK Caucasians (147 RA patients and 127 healthy individuals acting as controls). Dr Morgan is an Arthritis Research Campaign ‘Clinician Scientist Fellow’.
One specific FCGR3A-FCGR3B haplotype was found in 31% of RA patients and in 37% of RA patients with a more severe type of RA characterised by lumps around the joints, or nodules. Individuals with 2 copies of this haplotype (homozygous) are three times more likely to develop RA. Homozygous individuals who also have certain variants of human leukocyte antigen (HLA)-DRB1 alleles encoding the ‘shared epitope’ protein sequence (SE positive), a known risk factor for RA, have a 10 times higher risk of developing RA than SE negative individuals with other FCGR3 variants.
Juliette Savin | alfa
Laser activated gold pyramids could deliver drugs, DNA into cells without harm
24.03.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences
What does congenital Zika syndrome look like?
24.03.2017 | University of California - San Diego
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
24.03.2017 | Earth Sciences
24.03.2017 | Health and Medicine
24.03.2017 | Earth Sciences