Research led by University of Pennsylvania scientists offers a new look at African genetic diversity, with data from 50 populations. Among other insights, their analysis suggests that geographically far-flung hunter-gatherer groups, a few of whom speak languages involving clicks, share a common ancestry.
A new study on the measles epidemic in China has far-reaching implications for eliminating the infection globally. Using a new model-inference system developed at the Columbia Mailman School, the researchers were able to estimate population susceptibility and demographical characteristics in three key locations in China, in a period that spans the pre-vaccine and modern mass-vaccination eras.
Using a small and inexpensive biosensor, researchers in the School of Engineering have developed a novel low-cost technique that quickly and accurately detects cryptosporidium contamination in water samples.
Sierra Leone has few doctors and even fewer surgeons to serve its seven million people. Since 2011, a non-profit group called CapaCare has been training community health officers to perform basic lifesaving surgeries. A new study shows the programme is working well when it comes to the most common surgery in the country -- Caesarean sections.
Training community health workers to perform verbal autopsy interviews captured more accurate data about the number and causes of deaths in rural Uganda than current health facility surveillance methods, researchers at UNC-Chapel Hill and in-country partners found. PLOS ONE published the results.
A high proportion of multidrug-resistant tuberculosis (TB) cases can be cured in conflict-affected communities with molecular diagnostics, shorter treatment periods and socioeconomic incentives, according to the results of a large, long-term study in the Democratic Republic of Congo.
Smartphones aren't just for selfies anymore. A novel cell phone imaging algorithm developed at FAU can now analyze assays typically evaluated via spectroscopy, a powerful device used in scientific research. Researchers analyzed more than 10,000 images and found that their method consistently outperformed existing algorithms under a wide range of operating field conditions. This technique reduces the need for bulky equipment and increases the precision of quantitative results.
Aleksey Belikov from MIPT has proposed that rapid progression of age-related diseases may result from the formation of so-called vicious cycles. An example of this is when toxic products of a biochemical reaction trigger that same reaction to happen again. The study, published in the January issue of Ageing Research Reviews, highlights the most promising options for age-related disease treatment that focus on interrupting vicious cycles.
A detailed analysis of blood samples from Ebola patients is providing clues about the progression of the effects of the virus in patients and potential treatment pathways. The findings point to a critical role for a molecular pathway that relies on the common nutrient choline, as well as the importance of cellular bodies known as microvesicles. The preliminary results are based on an analysis of the lipids in a small number of blood samples.
Scientists at the Institute of Genome Sciences (IGS) at the University of Maryland School of Medicine (UMSOM) have developed a novel way with genome sequences to study and better understand transmission, treat and ultimately eradicate Plasmodium vivax, the most widespread form of malaria.