Author: healthadmin

Microplastics can disrupt brain processes associated with Parkinson’s disease, and some research suggests pollution may be contributing to the rise in cases.Cases of Parkinson’s disease have doubled in the past 25 years, and researchers said rising levels of plastic pollution in the environment may be partially to blame.The review drew on more than 100 previous studies, including animal studies, laboratory experiments, and computational models, and uncovered what the authors described as evidence linking small plastic particles to neurodegenerative conditions.Although it is not yet clear whether microplastics are directly responsible, researchers from China’s Gannan Medical University and Guangzhou Medical University investigated…

Over the past year, Republican leaders and the Trump administration have used a law known as the Congressional Review Act to advance coal mining in Montana, oil drilling in Alaska and copper mining in Minnesota, while attempting to roll back protections for national monuments in Utah. The rarely used law gives Congress several months to rescind new federal regulations. Only in the past year has this system been used to overturn land management plans. Conservationists say Congress is recklessly releasing detailed plans that were developed after years of research, public meetings and local collaboration. They worry that lawmakers’ intervention could…

WASHINGTON – On Thursday, the Trump administration held a closed-door press conference to allow senior Food and Drug Administration officials to anonymously criticize an experimental Huntington’s disease treatment developed by UniQure. In the past, when faced with controversial regulatory issues, the agency often held public meetings of independent advisory committees (known in industry parlance as advisory committee meetings or adcoms). Patients, physicians, and other interested parties were given the opportunity to comment. They were given a transparent look inside the scientific dialogue between company leaders and regulators who publish their own analysis of medical product approval applications. STAT Plus: FDA…

One of the biggest unsolved challenges in modern physics is integrating two powerful theories that explain very different parts of reality. Quantum theory describes the behavior of extremely small particles with amazing precision. Einstein’s general theory of relativity, on the other hand, explains gravity and the motion of planets, stars, and galaxies. However, despite the successes, these two frameworks are still not fully aligned. Physicists have proposed several possible ways to integrate them into a single theory. Ideas such as string theory, loop quantum gravity, canonical quantum gravity, and asymptotic safe gravity all attempt to fill the gap. Each approach…

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…