News by Subject Biology

A new study provides a first step toward the development of an inexpensive point-of-care diagnostic test to assess the presence of known risk factors for preterm birth in resource-poor areas. The study found that measuring levels of TIMP-1 and D-lactic acid in vaginal secretions may be a noninvasive, cost-effective way to assess the risk for preterm birth due to a short cervix and microbiome composition.

A University of Oklahoma-led study demonstrated the potential of the TROPOspheric Monitoring Instrument on board the Copernicus Sentinel-5 Precursor satellite to measure and track chlorophyll fluorescence and photosynthesis of tropical forests in the Amazon.

Antibiotic treatment is known to disrupt the community structure of intestinal microbes -- the 500 to 1,000 bacterial species that have a mainly beneficial influence in humans. A study now has tracked this disruption at the level of a strain of microbes replacing another strain of the same species in 30 individuals -- all of them young, healthy adults who would be expected to have stable microbial communities.

Bacterial cell division is controlled by both enzymatic activity and mechanical forces, which work together to control its timing and location, a new study from EPFL finds.

Engineers at MIT and elsewhere have tracked the evolution of individual cells within an initially benign tumor, showing how the physical properties of those cells drive the tumor to become invasive, or metastatic.

French investigators have described development of resistance to one of the last resort therapies used to treat extremely drug-resistant Pseudomonas aeruginosa. That resistance arose in a single patient over a scant 22 days. They subsequently identified the single nucleotide mutation in P. aeruginosa that caused the resistance.

An international team of scientists, led by Prof. Kevin Verstrepen (VIB-KU-Leuven) and Prof. Steven Maere (VIB-UGent), has discovered that some of the most renowned classic Belgian beers, including Gueuze and Trappist ales, are fermented with a rare and unusual form of hybrid yeasts. These yeasts combine DNA of the traditional ale yeast, Saccharomyces cerevisiae, with that of more stress-resistant feral yeasts such as Saccharomyces kudriavzevii.

The study, conducted in mice, is the first to show that creatine uptake is critical to the anti-tumor activities of killer T cells, the foot soldiers of the immune system.