Study reveals messenger molecules in cell walls can double as hormones
Researchers have discovered that some common messenger molecules in human cells double as hormones when bound to a protein that interacts with DNA. The finding could bring to light a class of previously unknown ...
Study shows manure from cows not given antibiotics still causes increase in resistant bacteria in soil
Scientists replicate key evolutionary step in life on earth
(PhysOrg.com) -- More than 500 million years ago, single-celled organisms on Earth's surface began forming multi-cellular clusters that ultimately became plants and animals.
Evolution of life's operating system revealed in detail
The evolution of the ribosome, a large molecular structure found in the cells of all species, has been revealed in unprecedented detail in a new study.
A new mechanism affecting cell migration found
Cell migration is important for development and physiology of multicellular organisms. During embryonic development individual cells and cell clusters can move over relatively long distances, and cell migration ...
Researchers create embryonic stem cells without embryo
(Phys.org) —Since the discovery of human embryonic stem cells, scientists have had high hopes for their use in treating a wider variety of diseases because they are pluripotent, which means they are capable ...
Viruses hijack deep-sea bacteria at hydrothermal vents
More than a mile beneath the ocean's surface, as dark clouds of mineral-rich water billow from seafloor hot springs called hydrothermal vents, unseen armies of viruses and bacteria wage war.
First pictures of BRCA2 protein show how it works to repair DNA
Scientists have taken pictures of the BRCA2 protein for the first time, showing how it works to repair damaged DNA.
Origins of life? Discovery could help explain how first organisms emerged on Earth
(Phys.org) —A structural biologist at the Florida State University College of Medicine has made discoveries that could lead scientists a step closer to understanding how life first emerged on Earth billions ...
Dispersal patterns key to invasive species' success
In 1859 an Australian farmer named Thomas Austin released 24 grey rabbits from Europe into the wild because it "could do little harm and might provide a touch of home, in addition to a spot of hunting."
Stem cell physical
Looking at stem cells through physicists' eyes is challenging some of our basic assumptions about the body's master cells.
Discovery alters understanding of long-distance intercellular communication
(Phys.org) —In a finding likely to fundamentally reshape biologists' understanding of how vertebrate cells communicate, researchers at the Stanford University School of Medicine and the UC-San Francisco ...
Bulletproof nuclei? Stem cells exhibit unusual absorption property
Stem cells – the body's master cells – demonstrate a bizarre property never before seen at a cellular level, according to a study published today from scientists at the University of Cambridge. The property ...
Better protein creation may be secret of longevity for the world's longest-living rodent
Naked mole rats have what any animal would want. They live long lives—about 30 years—and stay healthy until the very end. Now biologists at the University of Rochester have new insights into the animal's ...