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The virus that causes COVID-19 continues to mutate. Scientists say that's likely to continue indefinitely, and the virus will find new ways to evade the human immune system.
Vitamin K is a fat-soluble vitamin that occurs in two forms, K1 (phylloquinone), found abundantly in green leafy vegetables, and K2. Vitamin K2 has several subforms, known as menaquinones, which are designated MK-4 through MK-13. These subforms differ primarily in the length of their side chains, which affects their distribution in the body, sources in the diet and specific biological functions.
Utah is poised to become the first state to ban adding fluoride to public drinking water. A bill passed by the state's Republican-led legislature now awaits a signature from the GOP governor.
What if treating autoimmune diseases was as simple as regulating the acidity levels of parts of patients' cells? Genetic screening may have unlocked a path for treating the severe inflammation associated with many immune diseases by regulating one protein's role in helping another protein control cell acidity, according to new research published in Cell by a team from the Perelman School of Medicine at the University of Pennsylvania.
Medical students in south Alabama are learning about nutrition at a cooking class in hopes they will be able to better talk to patients about what they eat.
Systematic review finds that while low-dose fluoride has little effect on gut microbiota, high doses disrupt microbial diversity and balance, especially in animal studies. The effects vary by species, fluoride form, and exposure level, raising concerns about high-dose fluoride impacts on gut health.
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Systematic review finds that while low-dose fluoride has little effect on gut microbiota, high doses disrupt microbial diversity and balance, especially in animal studies. The effects vary by species, fluoride form, and exposure level, raising concerns about high-dose fluoride impacts on gut health.
Researchers were shocked to see that bacteria's antimicrobial resistance is strengthened when exposed to plastic particles and point to a potential outsized impact on refugees.
Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth.
When health-care professionals practise compassion, they experience reduced stress, improved job satisfaction, and build stronger relationships with patients, essential for providing high-quality care
Researchers have identified genetic changes in blood stem cells from frequent blood donors that support the production of new, non-cancerous cells. Understanding the differences in the mutations that accumulate in our blood stem cells as we age is important to understand how and why blood cancers develop and hopefully how to intervene before the onset of clinical symptoms.
Scientists have discovered 'berkelocene,' the first organometallic molecule to be characterized containing the heavy element berkelium. The breakthrough disrupts long-held theories about the chemistry of the elements that follow uranium in the periodic table.
On decadal timescales, the loss of Arctic ice favors the climate of the south-west of the United States -- and California in particular -- becoming drier on average, especially in winter. This phenomenon would also affect the climate of Spain and Portugal, favoring conditions of higher humidity in winter, although in this case the observed effect is weaker.
A review published in Nutrients finds that ketogenic diets (KD) may offer superior benefits for weight loss, blood sugar control, and inflammation compared to other diets. Researchers also highlight potential mental health improvements but call for more clinical trials.
Aging significantly impacts neurodegeneration, increasing risks for diseases like Alzheimer's. Research focuses on therapies to enhance cognitive function.
The discovery of the dwarf galaxy Andromeda XXXV --located roughly 3 million light-years away and the smallest yet found in the Andromeda system -- is forcing astronomers to rethink how galaxies evolve in different cosmic environments and survive different epochs of the universe.
A new study has found that extending state Medicaid coverage did not increase the likelihood of prescription opioid or benzodiazepine misuse among people who use drugs.
Data presented in the monthly measles and rubella update by the European Centre for Disease Prevention and Control (ECDC) indicate ongoing transmission of measles across a number of countries in EU/EEA, with a steep rise in cases reported during 2024.
A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using advanced simulations, the researchers propose that these planets emerge from distinct rings of planetesimals, providing fresh insight into planetary evolution beyond our solar system.
Microplastics-tiny shards of plastic debris-are all over the planet. They have made their way up food chains, accumulated in oceans, clustered in clouds and on mountains, and been found inside our bodies at alarming rates.
Black students at Historically Black Colleges and Universities (HBCUs) and Predominantly Black Institutions (PBIs) experience better mental health outcomes in several key areas compared to their peers at other institutions, while also facing distinct challenges that require attention, say University of Michigan School of Public Health researchers involved in a new report published this week.
Your gut, a complex ecosystem of trillions of microorganisms, plays a pivotal role in your overall health, influencing everything from your digestion to your mental well-being. This microbial community, known as your gut microbiome, is essential for maintaining homeostasis within your body. When this delicate balance is disrupted, a state called dysbiosis occurs, leading to a cascade of health issues, including inflammation and mental health conditions like depression and anxiety.
A new study compared four search engines and seven AI chatbots, including ChatGPT and GPT-4, to answer 150 health-related questions. Large language models outperformed search engines but showed sensitivity to prompts and risks of misinformation.
Researchers are working on artificial muscles that can keep up with the real thing. They have now developed a method of producing the soft and elastic, yet powerful structures using 3D printing. One day, these could be used in medicine or robotics -- and anywhere else where things need to move at the touch of a button.
A lung function test used to help diagnose asthma works better in the morning, becoming less reliable throughout the day, Cambridge researchers have found.
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