A paper published in this months PLoS Medicine suggests that combination therapy based on artemisinins (one of the newer antimalarial classes of drug) might not be the ideal treatment for uncomplicated malaria in Africa. If used alone, artemisinins will cure the most severe type of malaria -falciparum malaria -in seven days. However, when used on their own, they have a high risk of the malaria coming back and hence must be combined with other antimalarials to work best. Artemisinins may also slow down development of resistance to the partner drug. But although combinations including artemisinins have been widely advocated, they are expensive and relatively untested in areas where malaria is very frequent.
In a randomised trial conducted at four sites in Uganda, the researchers, led by Grant Dorsey from UCSF, showed that patients treated with a cheaper combination of drugs --amodiaquine and sulfadoxine-pyrimethamine--had at least as good a chance of preventing recurrent malarial infection (defined as either new infections or the previous infection returning) compared with patients treated with artemisinin-based combination therapy. In the sites that had the highest transmission rates the cheaper combination worked better. The authors conclude that although artemisinin combinations offer great hope for Africa, the ideal combination regimen remains uncertain and cost is a problem. To compare the efficacy of the different therapies, bigger and longer controlled trials are needed in many different conditions.
A promising target for kidney fibrosis
21.04.2017 | Brigham and Women's Hospital
Stem cell transplants: activating signal paths may protect from graft-versus-host disease
20.04.2017 | Technische Universität München
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy