Author: healthadmin

Humans and animals share a remarkable ability to sense when others are suffering and respond with comforting actions. However, the motivation for doing so and why it sometimes fails is poorly understood. UCLA Health researchers seek to better understand this in a new study published in Nature, uncovering brain circuits in mice that link two seemingly disparate social behaviors: caring for vulnerable offspring and comforting a suffering peer. The discovery provides the first direct neurological evidence for the long-standing evolutionary hypothesis that the biological urge to help others may have its origins in ancient mechanisms of parental care. why is…

Diabetic macrovascular complications are the main cause of death and disability in diabetic patients, and vascular calcification is one of its important pathological mechanisms. Calcification of atherosclerotic plaques can cause vessel wall stiffness and decreased compliance, which can induce atherosclerotic plaque rupture, thereby increasing the risk of acute cardiovascular events. Compared with non-diabetic patients, diabetic patients have atherosclerotic plaques in their coronary arteries, with larger necrotic cores and extensive calcification. Vascular calcification is an active process that involves osteoblast differentiation and vascular smooth muscle cell (VSMC) mineralization. However, the molecular mechanisms underlying vascular calcification in diabetic atherosclerotic plaques are not…

A September 2025 White House briefing in which women expressed concerns about acetaminophen use during pregnancy and touted the drug leucovorin as a potential autism treatment led to a radical change in how doctors across the country prescribe these drugs, according to a new study. The study shows that after the September 22, 2025 briefing, orders for acetaminophen for pregnant women in the emergency room decreased significantly, while prescriptions for leucovorin for children increased dramatically. The study was authored by researchers from the Brown University School of Public Health and Brigham General, Massachusetts. Lancet. According to the authors, the changes…

Scientists have discovered that electrons can be propelled through solar materials at nearly the fastest speeds allowed by nature. This is a result that challenges long-accepted ideas about how solar energy systems work. The discovery could open new avenues for designing technologies that more efficiently capture sunlight and convert it into electricity. Researchers at the University of Cambridge observed the separation of charges during a single molecular vibration in a laboratory experiment that tracked an event lasting just 18 femtoseconds (less than one quintillionth of a second). “We intentionally designed a system that, according to conventional theory, should not transfer…

Specialist palliative care can save up to £8,000 per person and improve quality of life. The new study, published by researchers from the National Institute for Health Research’s (NIHR) Palliative and End-of-Life Care Policy Research Unit at King’s College London, Hull York Medical School, the University of Hull and the University of Leeds, looked at two methods of care for people living at home and those in acute hospital settings. In addition to significantly reducing overall per capita care costs, specialist palliative care provided at home or in hospital has been found to be associated with improved quality of life…

A new technology has been developed to suppress immune rejection, the biggest challenge in organ transplantation, without causing systemic side effects. A research team from Pohang University of Science and Technology (POSTECH) and Ewha Womans University has developed an “immune shield” technology that uses mussel-derived adhesive proteins to spray immunosuppressants directly onto organ surfaces. These research results have recently controlled release journalan international journal in the field of pharmacology and drug delivery. Organ transplantation is the most effective treatment for restoring organs damaged by accident or disease. However, there is a severe global shortage of transplantable organs. Although xenotransplantation (transplanting…

Researchers at Cornell University have used high-resolution 3D imaging to identify atomic-scale defects in computer chips for the first time. These small defects can interfere with chip performance and are a major concern for modern electronics. This new imaging technology was developed through collaboration with Taiwan Semiconductor Manufacturing Company (TSMC) and Advanced Semiconductor Materials (ASM). The discovery could have implications for many areas of technology, as computer chips power devices ranging from smartphones and cars to AI data centers and quantum computers. The results of this survey were announced on February 23rd. nature communications. PhD student Sheikh Karapetian served as…

As the brain develops, neurons grow long extensions known as axons. These structures connect different areas of the brain and send signals both within the brain and throughout the body. To establish these connections, axons must travel along very specific routes within brain tissue. Their journey depends not only on the physical properties of their surrounding environment, but also on chemical signals. Until now, scientists did not fully understand how these two types of guidance work together. An international team of researchers has discovered that the stiffness of brain tissue can control the production of key signaling molecules. The survey…

A new study from the University of St. Andrews was published on February 27th. current biologyshow that the effect of age on male humpback whale reproduction is changing as whale populations recover after centuries of commercial whaling. Whaling once brought many large whale species to the brink of extinction. Hunting has long since ceased, but the impact has not been limited to a decline in population. Decades later, the legacy of whaling continues to shape whale populations, influencing not only the number of whales that exist today, but also which males father calves. 20 years of data on whales in…

Scientists have proposed that Parkinson’s disease may begin far from the brain, where environmental toxins, microbiome disruption, and damage to the intestinal barrier interact to trigger a biological cascade that leads to neurodegeneration. Environmental insults reduce intestinal resilience and initiate convergence mechanisms that cause Parkinson’s disease. A lifetime of environmental insults (including Western diets and food additives, nano- and microplastics, pesticides and herbicides, industrial solvents, and air pollution) affect the gut microbiome and intestinal barrier. These exposures promote microbiome imbalance, disrupt tight junctions, erode the mucus layer, and overall reduce gut resilience. When this peripheral defense is compromised, several mechanistic…