If you've ever spent some time in the Caribbean, you might have noticed that humans are not the only organisms soaking up the sun. Anoles -- diminutive little tree lizards -- spend much of their day shuttling in and out of shade. But, according to a new study in Evolution led by assistant professor Martha Muñoz at Virginia Tech and Jhan Salazar at Universidad Icesi, this behavioral 'thermoregulation' isn't just affecting their body temperature. Surprisingly, it's also slowing their evolution.
Dartmouth-led study of more than 25 million pregnant women reports on rates of smoking cessation at the start of and during pregnancy and also examines the association of quitting cigarette smoking and the risk of preterm birth.
Synthetic biologists have added high-precision analog-to-digital signal processing to the genetic circuitry of living cells. The research, described online today in the journal Science, dramatically expands the chemical, physical and environmental cues engineers can use to prompt programmed responses from engineered organisms.
EPFL scientists have discovered how a family of proteins that regulates the activity of transposable elements in the genome allows them to make inheritable changes to the growing fetus.
An international research team led by The University of Tokyo modeled the growth of cerebral tracts. Using neurons derived from stem cells, they grew cortical-like spheroids. In a microdevice, the spheroids extended bundles of axons toward each other, forming a physical and electrical connection. Fascicles grew less efficiently when one spheroid was absent, and when a gene relevant to cerebral tract formation was knocked-down. The study further illuminates brain growth and developmental disorders.
Researchers have discovered a key clue into the development of the pancreas and brain by studying rare patients born without a pancreas. The study, published in the American Journal of Human Genetics, from the Wellcome Sanger Institute and University of Exeter also identified an unexpected pathway in human pancreas development, and confirmed this in mice. Understanding how the pancreas forms could help develop replacement cells to treat patients with type 1 diabetes in the future.
A research group led by a scientist of the RIKEN Center for Biosystems Dynamics Research (BDR) has gained important insights into how the nanopores that allow the fruit fly to detect chemicals in the air, and has identified the gene responsible for their development.
Physical traits and behaviors that make a lizard sexy -- features used to attract potential mates and fend off competitors -- may be important enough that they do not change in the face of stress, according to Penn State researchers.
Based on the analysis of the genomes of more than a dozen flightless birds, including an extinct moa, a team led by Harvard researchers found that while different species show wide variety in the protein-coding portions of their genome, they appear to turn to the same regulatory pathways when evolving flight loss.
New findings published today in Science Advances, detail three-dimensional imaging research by a group of scientists at The University of Manchester and St Mary's Hospital. The research has opened up understanding about this vital life-sustaining process by mathematically modelling the human placenta.