Euclid’s expanding quasar census is revealing how enormous black holes emerged during the Universe’s infancy. More than 13 billion years ago, two brilliant objects blazed from galaxies that had barely begun to take shape. Their light, produced when the Universe was only 670 million years old, has now reached the European Space Agency’s Euclid space […]
These “Good” Immune Cells Could Hold the Key to Spinal Cord Regeneration
An Il-4 signal from neutrophils helps zebrafish control inflammation and regenerate damaged spinal cords. A damaged human spinal cord rarely repairs itself. The immune response that follows an injury can become excessive, producing lasting scar tissue that prevents nerve cells and their connections from growing back. Zebrafish respond very differently, controlling inflammation well enough to […]
These “Good” Immune Cells Could Hold the Key to Spinal Cord Regeneration
An Il-4 signal from neutrophils helps zebrafish control inflammation and regenerate damaged spinal cords. A damaged human spinal cord rarely repairs itself. The immune response that follows an injury can become excessive, producing lasting scar tissue that prevents nerve cells and their connections from growing back. Zebrafish respond very differently, controlling inflammation well enough to […]
These “Good” Immune Cells Could Hold the Key to Spinal Cord Regeneration
An Il-4 signal from neutrophils helps zebrafish control inflammation and regenerate damaged spinal cords. A damaged human spinal cord rarely repairs itself. The immune response that follows an injury can become excessive, producing lasting scar tissue that prevents nerve cells and their connections from growing back. Zebrafish respond very differently, controlling inflammation well enough to […]
Researchers Solve Mystery Behind Contradictory Weight-Loss Drug Paradox
Opposite actions on the same receptor can promote weight loss by targeting different brain circuits. Two obesity drugs can push the same brain receptor in opposite directions and still lead to weight loss. Researchers at the University of Cambridge have now traced that apparent contradiction to two separate regions of the brain. The mouse study, […]
Forgotten Autobiography Rewrites the Story of a War of 1812 Soldier
A rediscovered memoir reveals the harsh realities faced by a disabled veteran in nineteenth-century Britain. After a musket ball destroyed his left forearm during the War of 1812, Shadrack Byfield retrieved the amputated limb from a refuse pile and buried it himself. He later designed a prosthetic device that helped him return to weaving, but […]
Forgotten Autobiography Rewrites the Story of a War of 1812 Soldier
A rediscovered memoir reveals the harsh realities faced by a disabled veteran in nineteenth-century Britain. After a musket ball destroyed his left forearm during the War of 1812, Shadrack Byfield retrieved the amputated limb from a refuse pile and buried it himself. He later designed a prosthetic device that helped him return to weaving, but […]
Forgotten Autobiography Rewrites the Story of a War of 1812 Soldier
A rediscovered memoir reveals the harsh realities faced by a disabled veteran in nineteenth-century Britain. After a musket ball destroyed his left forearm during the War of 1812, Shadrack Byfield retrieved the amputated limb from a refuse pile and buried it himself. He later designed a prosthetic device that helped him return to weaving, but […]
Long-Lost Megalodon Fossils Found Hiding on a Museum Shelf
Long-lost Otodus megalodon vertebrae have reopened questions about the giant shark while exposing the vulnerability of museum collections. For decades, several enormous shark vertebrae sat unnoticed on a museum shelf. Once recognized, the long-missing fossils reopened a rare window into the life of Megalodon (now properly Otodus megalodon), one of the largest predators ever to […]
Two-Year Lifestyle Program Boosts Cognition 55% More in Older Adults
A culturally tailored lifestyle program with ongoing support produced greater cognitive improvement than flexible health guidance alone. Across 11 Latin American countries, older adults at risk of dementia improved their memory and thinking through lifestyle programs adapted to local cultures. The greatest gains appeared among those who received regular coaching, supervised activities and structured social […]