Using theoretical models of bacterial metabolism and reproduction, scientists can predict the type of resistance that bacteria will develop when they are exposed to antibiotics. This has now been shown by an Uppsala University research team, in collaboration with colleagues in Cologne, Germany. The study is published in the journal Nature Ecology and Evolution.
A series of weekend workshops that integrate strategies for both reducing risky alcohol use and preventing sexually transmitted infections (STIs) led to an increase in safe sex and decrease in drinking among young Black women, according to a new study published in the American Journal of Preventive Medicine.
Researchers have proposed a new quantitative strategy for pooling COVID-19 tests in order to monitor spread and detect outbreaks early within closed communities, such as nursing homes or universities. Vincent Brault of Université Grenoble Alpes in Grenoble, France, and colleagues present this method in the open-access journal PLOS Computational Biology.
In nematode worms, a key controller allows the worm to sense when it needs food and when it feels full, and then changes its behavior accordingly. Jennifer Tullet of the University of Kent and colleagues report these new findings in a paper published March 4th in PLOS Genetics. They propose that a similar factor may control feelings of fullness in humans.
While most Hispanic/Latino people in the U.S. were aware of their cardiovascular risk factors, less than half of the adults in a study of stroke survivors had healthy blood pressure and cholesterol, and about half had healthy blood sugar levels. Targeted prevention programs may help Hispanic/Latino people avoid a second stroke and other events, especially among older adults, women, the uninsured and those born or living in the U.S. for more than 10 years.
* Natural compound found in catnip is at least as effective as synthetic insect repellents such as DEET * Catnip can easily be grown in a home garden and made into oil or extract * New type of deterrent targets pain receptors in insects while maintaining no impact on humans
Cells called astrocytes derived from the induced pluripotent stem cells of patients with bipolar disorder offer suboptimal support for neuronal activity. In a paper appearing March 4th in the journal Stem Cell Reports, researchers show that this malfunction can be traced to an inflammation-promoting molecule called interleukin-6 (IL-6), which is secreted by astrocytes. The results highlight the potential role of astrocyte-mediated inflammatory signaling in the psychiatric disease, although further investigation is needed.
To succeed in mating, many male frogs sit in one place and call to their potential mates. But how do females pinpoint a perfect mate among all the background noise of other frogs? Now, researchers reporting March 4 in the journal Current Biology have found that they do it thanks to a set of lungs that reduce their eardrum's sensitivity to environmental noise, making it easier to zero in on the calls of males.
A new study employing ancient human DNA reveals how tuberculosis has affected European populations over the past 2,000 years, specifically the impact that disease has had on the human genome. This work, which publishes March 4 in the American Journal of Human Genetics, has implications for studying not only evolutionary genetics, but also how genetics can influence the immune system.
Children born to women taking certain medications for epilepsy during pregnancy have no developmental delays at age three when compared to children of healthy women without epilepsy, according to a preliminary study released today, March 4, 2021, that will be presented at the American Academy of Neurology's 73rd Annual Meeting being held virtually April 17 to 22, 2021.