The investigators, led by Anuradha Ganesan, MD, of the National Naval Medical Center and the Infectious Disease Clinical Research Program in the Department of Preventive Medicine and Biometrics at the Uniformed Services University of the Health Sciences in Bethesda, Md., randomized 22 HIV-1-infected patients not on antiretroviral therapy and with cholesterol levels lower than those requiring statin therapy in a double-blind protocol of high-dose drug or placebo for eight weeks. After a four-to-six-week washout phase, each group was switched to the other treatment for another eight weeks.
The primary objective was to study the effect of atorvastatin on plasma HIV-1 RNA levels, as previous studies had shown conflicting results. The effect on cellular markers of immune activation was a secondary objective. HIV-1 RNA levels were not significantly affected by the drug, but levels of such immune activation markers as CD38 and HLA-DR on CD4 and CD8 T cells were reduced.
The researchers noted that their findings with atorvastatin suggest that understanding the mechanism by which statins affect immune markers may identify new approaches for the management of HIV infection. They point out, however, that their trial was not designed to demonstrate clinical benefits, for which larger studies of longer duration are needed.
In an accompanying editorial, Andrew Carr, MD, of St. Vincent’s Hospital in Sydney, Australia, agreed, noting that “a very large study would probably be required to determine whether potentially positive effects of statin therapy on inflammatory biomarkers will translate into less HIV disease progression.”
Fast Facts:Statins show potential to alter the chronic immune activation observed in HIV-1 infected patients.
HIV-1 RNA levels were not significantly affected by the drug, but levels of such immune activation markers as CD38 and HLA-DR on CD4 and CD8 T cells were reduced.
The study and the accompanying editorial are available online:“High Dose Atorvastatin Decreases Cellular Markers of Immune Activation without Affecting HIV-1 RNA Levels: Results of a Double-Blind Randomized Placebo Controlled Clinical Trial”
John Heys | EurekAlert!
Penn vet research identifies new target for taming Ebola
12.01.2017 | University of Pennsylvania
The strange double life of Dab2
10.01.2017 | University of Miami Miller School of Medicine
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...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
17.01.2017 | Earth Sciences
17.01.2017 | Materials Sciences
17.01.2017 | Architecture and Construction