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High consumption of fructose from sugary foods and drinks during pregnancy has been associated with increased risks of diabetes and heart-related problems in mothers. Now, new research suggests that a diet high in fructose may affect brain development, potentially causing biological changes that could impact learning and cognitive function later in the child’s life.
To understand how a mother’s diet may influence a baby’s developing brain, researchers studied pregnant rats given a high-fructose corn syrup diet. After birth, the offspring underwent tests to evaluate learning and memory. Rats exposed to high levels of fructose before birth showed signs of impaired memory and reduced learning ability.
The study revealed that prenatal exposure to high fructose altered neural stem cells in several ways, reducing their ability to divide and produce new neurons while changing gene activity. These changes affected neurogenesis in brain regions important for learning and memory and were linked to lasting epigenetic changes that remained into adulthood.
A promising discovery was that restoring normal gene expression helped recover neural stem cell function in the exposed rats, offering hope that some negative effects on brain development and cognition may be reversible. This suggests that future therapies may be able to reverse some of the lasting effects of nutritional imbalances during development.
The findings indicate that prenatal nutrition may have lasting effects on neural stem cell function through biological changes that persist over time. However, further research is needed to determine whether the effects seen in this study also occur in humans and what they may mean for long-term health. The importance of proper nutrition during pregnancy continues to grow as researchers uncover how early dietary exposures may shape a child’s future health.
To view the original scientific study click below:
Neural stem cells as potential mediators of prenatal dietary stress through epigenetic mechanisms
For many people, grabbing a hot drink in a disposable cup is part of their daily routine. Yet the container holding your coffee or tea may not be as harmless as it seems. New research suggests the very cup designed to keep your drink hot could also be releasing tiny plastic particles into it.
Not all disposable cups release microplastics at the same rate. Researchers found that the cup material and beverage temperature both affect how many tiny plastic particles leach into a drink. Although microplastics were detected across all temperatures tested, hotter beverages triggered significantly greater particle release.
Measuring less than 5 millimeters, microplastics have emerged as an increasing public health concern. These tiny particles can enter the body through food, beverages, or the air we breathe, where they may build up in organs including the lungs and digestive system and contribute to inflammation and other health problems.
The study combined evidence from previous research with new laboratory testing. Researchers first reviewed 30 published studies, compiling 237 observations to assess how variables such as water temperature and soaking time influenced microplastic release. They then tested two popular types of disposable cups, those made entirely of polyethylene (PE) and paper cups with a polyethylene coating, to compare how much microplastic each released.
Researchers found that hot water caused the surface of polyethylene (PE) cups to become increasingly rough and irregular, a sign of physical degradation that likely contributed to greater microplastic shedding. By comparison, paper cups coated with polyethylene maintained smoother surfaces with less visible damage, which may have helped limit the release of plastic particles.
The study estimated that a single 10-ounce hot beverage consumed each day could add hundreds of thousands of microplastic particles to a person's yearly intake. Drinks served in polyethylene (PE) cups were associated with roughly 360,000 particles per year, while polyethylene-coated paper cups were estimated to release about 240,000 annually.
The healthiest and most environmentally friendly choice is a reusable cup made from stainless steel, glass or ceramic. Because these materials are non-reactive, they won't break down or release chemicals or plastic particles when filled with hot beverages.
Maintaining a healthy weight is becoming increasingly uncommon, with only one in four U.S. adults falling into that category. New research suggests excess weight may be responsible for significantly more cancers than once thought. After analyzing data from more than 450,000 people, researchers estimated that excess body fat is linked to over 11% of all cancer cases, nearly twice earlier estimates.
Being alone isn't necessarily harmful, but feeling lonely may be. According to a new study, older adults who experience persistent loneliness may face a faster decline in both cognitive and physical health. The researchers found that loneliness remained strongly linked to poorer brain health and an increased risk of early death, regardless of how socially isolated a person was.