According to a new study in Advanced Materials, researchers have developed a way to 3D print custom micrometer-sized structures directly into the interior of living cells.

Tendons are strong – but not invincible. If repeatedly overloaded, for example during intense training, they can undergo gradual but harmful changes with debilitating pain.

A protein known as HIF1 is central to these changes, as researchers have now demonstrated in experiments in mice and with tendon tissue from humans.

Their findings open a path to new treatments that could act before the tissue is irreversibly damaged.

A new paper in Environmental Toxicology and Chemistry finds that common flea and tick control medications used in dogs and cats may pose a significant environmental risk to wild insects.

When the four-member crew of Axiom-2 launched into space in May 2023 their 10-day mission was chock full of experiments aimed at understanding human physiology. Results from some of those experiments, now online at Aging Cell, highlight spaceflight as a unique model for studying aging as well as cellular resilience. The research sets the stage for testing potential anti-aging interventions for those of us who have no plans to travel in space.

By studying genes that affect cuticle pigmentation in the laboratory fruit fly, researchers were able to identify new genes, mask and clu, that are involved in regulating dopamine levels in the brain. The findings offer new possibilities to restore in people disruptions in dopamine that have been associated with neurological and neuropsychiatric disorders, including addiction, depression, sleep disorders and schizophrenia.