A new study, published in Nature Communications, highlights the role of a protein called PCAF, which seems to successfully trigger a series of chemical and genetic events that allow nerves to regenerate. When we injected PCAF into mice with damage to their central nervous system, this significantly increased the number of nerve fibres that grew back, indicating that it may be possible to chemically control the regeneration of nerves in the central nervous systems.
Astronomers have discovered what may be a Thorne–Zytkow object (TZO), a binary star system where a neutron star is enveloped by a red giant or supergiant star. TZO's were first theorised in 1977 by Kip Thorne and Anna Zytkow. On June 4th, 2014 a team of astronomers led by Emily Levesque that included Zytkow published a paper identifying red supergiant star HV 2112 in the Small Magellanic Cloud as a possible TZO candidate.
It may be one of the most famous dinosaurs of all time. The trouble is that shortly after being discovered, the Jurassic creature fell into an identity crisis. The name for the long-necked, heavy-bodied herbivore Brontosaurus excelsus—the great "thunder lizard"—was tossed into the scientific wastebasket when it was discovered that the dinosaur wasn't different enough from other specimens to deserve its own distinct genus.
But now, in a paleontological twist, Brontosaurus just might be back. A new analysis of dinosaur skeletons across multiple related species suggests that the original thunder lizard is actually unique enough to resurrect the beloved moniker, according to researchers in the U.K. and Portugal.