New research by a team at Brown University finds that special filaments called vimentin may be key to the spread of some aggressive, chemo-resistant cancer cells.
Climate change pushes species distribution areas northward. However, the expansion of species ranges is not self-evident due to e.g. habitat degradation and unsustainable harvesting caused by human activities. A new study led from the University of Turku, Finland, suggests that protected areas can facilitate wintering waterbird adaptation to climate warming by advancing their range shifts towards north.
Computer modeling of the COVID-19 virus on supercomputers showed that the spike protein visits an intermediate state before it can dock to the receptor protein on the host cell membrane. This intermediate state can be useful for drug targeting to prevent the spike protein to initiate viral infection. The initial findings, which showed the existence of an intermediate semi-open state of the spike protein, was published in the Journal of Chemical Physics.
Some people love spicy food -- the hotter, the better. Others go out of their way to avoid the palate-singeing burn of capsaicin, the compound that gives chili peppers their kick. Now, researchers have developed a portable device (whimsically shaped like a chili pepper) that can reveal how much capsaicin a pepper contains, before biting into it. They report their results in ACS Applied Nano Materials.
Chameleons can famously change their colors to camouflage themselves, communicate and regulate their temperature. Scientists have tried to replicate these color-changing properties for stealth technologies, anti-counterfeiting measures and electronic displays, but the materials have limitations. Now, researchers have developed a flexible film that changes color in response to stretching, pressure or humidity. They report their results in ACS Applied Materials & Interfaces.
According to the Mayo Clinic, about 15% of couples are infertile, and male infertility plays a role in over one-third of these cases. Often, problems with sperm development are to blame. Now, researchers reporting in ACS Nano have found a way to deliver a protein important for sperm cell production directly to mouse testicles, where it restored normal sperm development and allowed previously infertile mice to father pups.
Chemicals that haven't been manufactured in the U.S. for years or even decades are still turning up in the bodies of migratory terns in the Great Lakes region, a new study finds. The research focused on three types of compounds: PBDEs, PCBs, and the breakdown products, called metabolites, of DDT.
How the next Congress decides to handle the issue editing human sperm and eggs will affect the science, ethics and financing of genomic editing for decades to come, said Jacob S. Sherkow, a professor of law at Illinois who studies the ethical and policy implications of advanced biotechnologies.
A low dose of ketamine, administered intravenously, does not alter a healthy human's tolerance to blood loss. In other words, if someone was given ketamine to kill pain associated with a battlefield injury, they would be able to tolerate blood loss just as well as someone who did not received this pain killer.
Collaborative work of research groups at the University of Würzburg and the TU Dresden has provided important new insights for cancer research.