Author: healthadmin

Astronomers collaborating with the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) have created the most detailed three-dimensional map to date of light produced by energized hydrogen in the early universe, dating back approximately 9 billion to 11 billion years. This type of radiation, known as Lyman-alpha light, is emitted in large quantities when hydrogen atoms absorb energy from nearby stars. This property makes it a powerful way to find bright galaxies during this distant period of intense star formation. But the locations of fainter galaxies and gas clouds that emit Lyman-alpha light remain largely hidden. “By observing the early Universe, we…

Every time we feel a tap on our skin, specialized nerve cells convert that physical force into electrical signals that our brain interprets as touch. Scientists have long known that a protein called PIEZO2 acts as an important sensor of touch, but it remained unclear why PIEZO2 is specialized for the local mechanical forces experienced by sensory neurons, whereas its close relative PIEZO1 responds to broader mechanical stresses, such as those generated during cell elongation, as occurs in blood vessels. Now, a new study from Scripps Research helps fill that gap. The survey results are nature March 4, 2026 We…

Neuroscientists at King’s College London have pinpointed the mechanism behind the increased neural connectivity observed in the very early stages of Alzheimer’s disease. Published in translational psychiatrythis study also demonstrated that cancer drugs may alleviate this hyperconnectivity. The study, funded by the Alzheimer’s Society and carried out in rat brain cells, showed that low levels of the protein amyloid beta can induce hyperconnectivity, a pattern that closely resembles changes seen in the brains of people with mild cognitive impairment (MCI). Amyloid beta produces plaques, or sticky clumps of amyloid beta protein, around neurons and is thought to be involved in…

Age is more than just a number. Neuroscientists previously thought of cognitive aging as a single trend line, but now recognize that large individual differences require a more predictive and individualized approach. As we uncover more factors that influence cognition over time, we are finding that modeling the aging brain requires more diverse data than previously available. “We need to understand that the process of human aging is as much a biological process as it is a social one,” said Simon Fraser University’s Randy McIntosh, chair of a symposium on brain resilience at the Cognitive Neuroscience Society (CNS) annual meeting.…

Dental pulp regeneration remains a major clinical challenge. Researchers found that SMAD7 forms a direct transcription complex with β-catenin in human dental pulp stem cells, activating Wnt signaling and promoting regenerative gene expression. By redefining the role of SMAD7 from an inhibitor to a signaling mediator, this study uncovers a molecular mechanism that controls stem cell-driven repair. The findings suggest new strategies for biologically based dental treatment aimed at preserving tooth vitality and improving long-term clinical outcomes.Pulp damage caused by trauma or deep cavities often leads to inflammation, tissue necrosis, and ultimately loss of tooth vitality. In severe cases, bacterial…

Artificial intelligence (AI) has the potential not only to redefine the way radiology is practiced, but also to illuminate the unique challenges of radiology, a new study from the National Academy of Sciences finds. Journal of the American College of Radiology (JACR). of JACR Focused Questions on the Impact of AI on Workflow Optimization provides a collection of invited studies and reviews that explore the ways in which AI technologies are regularly utilized across a variety of practice types. When deployed carefully, AI can complement human expertise and improve efficiency and patient care. Successful workflow optimization requires integrating AI…

New research published in Neurology Queen Mary’s University of London has revealed that people of South Asian, African and European ancestry share many genetic risk factors for multiple sclerosis (MS). This new study is one of the most ancestrally diverse genetic analyzes of MS carried out in the UK. MS affects around 150,000 people in the UK and more than 2 million people worldwide, but most genetic research to date has focused on people of Caucasian European ancestry. The research team analyzed genetic data from more than 3,000 people with MS and more than 27,000 people without MS (called controls).…

Childhood obesity has been increasing in recent years. According to the U.S. Centers for Disease Control, in 2024, approximately 1 in 5 U.S. children and teens will meet the clinical definition of obesity. Preventing childhood obesity is not easy. For many years, the main approach has focused on encouraging healthy eating and regular physical activity. Researchers at Yale University now suggest that we should add another important factor to that list: reducing parental stress. A research team led by Yale University psychologist Rajita Sinha has found evidence that reducing parental stress may help reduce the risk of obesity in young…

Major depressive disorder (MDD) is a major global health problem and one of the leading causes of disability. Approximately 30% of people diagnosed with depression develop treatment-resistant depression (TRD). This means that standard antidepressants do not sufficiently improve symptoms. Ketamine has gained attention as a fast-acting antidepressant for TRD patients. However, scientists do not fully understand how this therapy works in the human brain, making it difficult to refine and personalize it. New research published in molecular psychiatry On March 5, 2026, we set out to solve this mystery. The study was led by Professor Takuya Takahashi of the Department…

A large study of U.S. military veterans suggests that GLP-1 diabetes drugs may impact addiction-related outcomes and reveals a surprising association between metabolic treatment and substance use risk. Study: Glucagon-like peptide 1 receptor agonists and risk of substance use disorder in U.S. veterans with type 2 diabetes: A cohort study. Image credit: Kotcha K / Shutterstock In recent research, british medical journal Evidence suggests that commonly prescribed medications for type 2 diabetes (T2D) may be associated with a reduced risk of substance use disorders (SUD). These findings demonstrate an unexpected association between diabetes treatment and addiction risk. Researchers investigated the…