Not all blood vessel cells respond to injury in the same way
Peer-Reviewed Publication
Updates every hour. Last Updated: 26-Oct-2026 03:16 ET (26-Oct-2026 07:16 GMT/UTC)
A new collaborative study from the laboratories of Drs. Xaralabos Varelas and Giovanni Ligresti from Boston University Chobanian & Avedisian School of Medicine have identified a distinct population of cells located in lung veins that becomes active after injury and helps create an environment that promotes scar tissue formation, a process known as fibrosis. Identifying a previously unrecognized driver of lung fibrosis and a signaling pathway that can be targeted, offers new opportunities for developing therapies to prevent, or slow disease progression in pulmonary fibrosis and other fibrotic lung diseases.
A new study published in JAMA Health Forum found that nearly 20 percent of Medicaid-eligible adults living in states that expanded Medicaid are at risk of noncompliance because they are likely unable to fulfill the minimum required hours once the rules take effect. Women, unmarried people, White individuals, and those with limited education all had a higher risk of losing their health coverage due to noncompliance with these new requirements.
Peroxisomes are small structures inside cells that help remove harmful substances but also break down fats. In animal studies, researchers disrupted these structures and found it damaged the cells that produce insulin (called beta or β cells) in three ways: promoted oxidative stress (a kind of cellular wear and tear), altered the chemical structure of the hormone insulin, and reduced signs that the cells were fully mature and functioning normally. Strangely, the animals released more insulin in response to sugar, yet their bodies were less able to keep blood sugar under control.
The study, published in JCI Insight, helps explain how problems inside cells may drive the loss of healthy insulin production seen in diabetes.
Scientists from Gladstone Institutes, UC San Francisco, and Stanford University, in collaboration with Biohub, have unveiled a massive, high-resolution functional map of human immune cells that promises to transform our understanding of how genetics control health and disease. Published in the journal Cell, the study represents a landmark achievement in immunology and genomics. By systematically stress-testing genes across the genome in 22 million human immune cells, scientists moved beyond mere DNA sequencing to decode the dynamic circuits that govern how these genes actually work in the context of health and disease.