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UCLA Study Links Faster Biological Aging to Diabetes and Social Factors in Women

UCLA Study Links Faster Biological Aging to Diabetes and Social Factors in Women

A new study led by UCLA Joe C. Wen School of Nursing Associate Professor Su Yon Jung, PhD, MPH, has identified a correlational pathway between accelerated epigenetic aging and the development of type 2 diabetes (T2DM) and insulin resistance (IR) in women. Published in 'Aging & Disease,' the research analyzed data from over 1,500 diabetes-free women participating in the Women’s Health Initiative over an average period of 19 years. The study found that women who developed T2DM exhibited greater accelerated epigenetic aging compared to those who did not. Faster biological aging was also observed among African American women and individuals with insulin resistance. Dr. Jung's research further explored the impact of social conditions, including social support and access to healthcare (social determinants of health, SDOH), on racial disparities in aging acceleration and metabolic diseases. Lower levels of SDOH were linked to greater accelerated aging, indicating a mediation effect of SDOH together with aging on ...

Clean Eating Emphasizes Whole Foods and Sustainable Lifestyle Over Fad Diets

Clean Eating Emphasizes Whole Foods and Sustainable Lifestyle Over Fad Diets

Clean Eating Emphasizes Whole Foods and Sustainable Lifestyle Over Fad Diets

Removal of Earth's Magnetic Field Impacts Fruit Fly Lifespans, Offering Insights into Aging and Space Travel Risks

Removal of Earth's Magnetic Field Impacts Fruit Fly Lifespans, Offering Insights into Aging and Space Travel Risks

Scientists have discovered that the absence of Earth's magnetic field significantly influences the lifespans of fruit flies, a finding that provides new insights into the aging process and potential risks associated with future human space travel. The study, published in the journal Aging, involved observing two populations of fruit flies within a 'hypomagnetic' shield system, which effectively blocks the Earth's geomagnetic field. One group consisted of healthy 'wild-type' flies, while the other comprised 'mutant' flies with a Pink1 gene defect, linked to early-onset Parkinson's disease in humans and mitochondrial dysfunction. The removal of the magnetic field extended the lifespan of the Pink1 mutant flies by 20 percent but reduced their mobility. Conversely, the healthy flies experienced a reduced lifespan but improved mobility under the same conditions. This unexpected differential effect highlights the complex and previously underestimated interaction between Earth's magnetic field and biological agin...

US packaged food makers could help cut diet-related deaths, study shows

US packaged food makers could help cut diet-related deaths, study shows

LONDON, Sept 24 (Reuters) - US packaged food companies could prevent around 150,000 diet-related deaths annually by moving sales towards healthier products in sectors including baked goods, savory snacks, cookies and candy, a study published on Thursday showed.

Texas A Researchers Uncover Mechanism Allowing Cancer Cells to Survive Treatment

Texas A Researchers Uncover Mechanism Allowing Cancer Cells to Survive Treatment

Researchers at Texas A&M University, led by Dr. Wenshe Liu, Regents Professor and Harry E. Bovay, Jr. Chair in chemistry, have identified key components of a cellular pathway that helps cancer cells survive treatment. The study, published in Nature Communications, focuses on the URM1 protein, which plays a role in cellular stress response. The team discovered two enzymes, NAE1/UBA3 and UBE2M, that drive the URM1 modification process in human cells. Disrupting these enzymes or treating cells with their inhibitors significantly reduced URM1 activity. The research also found that oxidative stress, a common mechanism by which many anticancer drugs work, strongly activates URM1. This suggests that the URM1 pathway acts as a protective system, allowing cancer cells to withstand the damage induced by treatments. The study found that cells lacking URM1 activation were less likely to survive oxidative stress, indicating its role in buffering cells against damage.

Turkish-Style Fried Eggs with Garlicky Greek Yogurt Offer High-Protein Breakfast Option

Turkish-Style Fried Eggs with Garlicky Greek Yogurt Offer High-Protein Breakfast Option

Turkish-Style Fried Eggs with Garlicky Greek Yogurt Offer High-Protein Breakfast Option

Home Biological Age Tests Utilize Epigenetic Clocks and Marker Panels to Estimate Biological Age

Home Biological Age Tests Utilize Epigenetic Clocks and Marker Panels to Estimate Biological Age

Home biological age tests are gaining traction, offering individuals insights into their biological age, which can differ significantly from their chronological age. These tests primarily employ two distinct methodologies: epigenetic clocks and marker panels. Epigenetic clocks analyze DNA methylation, which are chemical tags on DNA that regulate gene expression. As individuals age, these tags change in predictable patterns, allowing algorithms to estimate biological age by examining hundreds to thousands of these positions. The first widely recognized epigenetic clock, Horvath's clock, was developed in 2013 using data from numerous tissue types. The second approach, marker panels, assesses ordinary blood chemistry markers such as C-reactive protein (CRP), albumin, white cell count, creatinine, and HbA1c. These values are then weighed against population averages for a given chronological age to provide a biological age estimate. While both methods aim to quantify biological aging, they can yield different r...

Higher BMI in Preschool Children Linked to Brain Differences in Reward and Hunger Regions

Higher BMI in Preschool Children Linked to Brain Differences in Reward and Hunger Regions

A new study from Florida International University (FIU) has found that preschool-aged children with a higher Body Mass Index (BMI) exhibit differences in several brain regions associated with reward, taste, and hunger. Published in the Nature Portfolio journal Scientific Reports, this research is among the first to utilize advanced MRI techniques to explore the connection between obesity risk and brain development in very young children. The study involved scanning the brains of 159 children aged 4 to 7, including those with and without ADHD, using Restriction Spectrum Imaging (RSI). Researchers compared these scans with various body size measurements and discovered that only BMI correlated with brain differences. Specifically, children with higher BMIs showed variations in brain areas linked to motivation, reward, taste, and craving, along with a minor signal in the hypothalamus, which regulates hunger. These findings suggest that the relationship between body weight and brain development may begin much e...

Waist-to-Height Ratio Identified as Reliable Screening Tool for Pediatric Liver Disease Risk

Waist-to-Height Ratio Identified as Reliable Screening Tool for Pediatric Liver Disease Risk

A collaborative study led by researchers at Peking University in China, incorporating U.S. NHANES data, has found that the waist-to-height ratio (WHtR) is a reliable and practical indicator for screening children at risk of metabolic dysfunction-associated steatotic liver disease (MASLD). MASLD is now the most common chronic liver disease in children and adolescents, correlating with the global rise in childhood obesity. The study, published in the World Journal of Pediatrics, demonstrated that a WHtR of ≥ 0.48 performed well across most ethnic groups, including non-Hispanic White, Black, and Asian participants, with the 'other Hispanic' group being a notable exception. Crucially, the research indicated that adding genetic risk scores provided little additional benefit for initial screening, suggesting that a simple tape measure can be sufficient to identify at-risk children.

German Study Links Healthy Plant-Based Diets to Slower Biological Aging, Unhealthy Diets to Faster Aging

German Study Links Healthy Plant-Based Diets to Slower Biological Aging, Unhealthy Diets to Faster Aging

A study conducted by the German Center for Neurodegenerative Diseases (DZNE) has established a connection between diets rich in healthy plant foods and a slower rate of biological aging. Conversely, the research, published in Nature Communications, found that plant-based diets composed of less healthy plant foods were associated with faster aging. The study analyzed blood samples and eating habits from 6,470 adults participating in the Bonn-based Rhineland Study, with main results confirmed in an additional 1,034 participants from the EPIC-Potsdam Study. Researchers measured chemical tags on DNA that change over a lifetime and utilized three 'epigenetic clocks' to estimate each individual's biological aging rate. The findings suggest that the quality of plant-based foods significantly influences the pace of biological aging, with different dietary patterns leaving distinct imprints on DNA. The study also noted that the link between diet and slower aging was most pronounced among smokers.

Protein Restriction Research Highlights FGF21 Hormone's Role in Longevity and Metabolism

Protein Restriction Research Highlights FGF21 Hormone's Role in Longevity and Metabolism

Recent livestock research, as covered by Science Daily, indicates that restricting dietary protein can significantly impact longevity and metabolic health, primarily through the hormone FGF21 (fibroblast growth factor 21). When protein intake decreases, the liver produces more FGF21, which in turn can increase energy expenditure, improve blood sugar regulation, and reduce inflammation. This hormone acts as an endocrine signal, linking the liver and brain to regulate metabolism and feeding behavior during periods of protein restriction. The body appears to interpret protein availability as crucial information, with FGF21 signaling a coordinated response that alters appetite, energy use, growth, and overall metabolism. This effect has been observed across various animal species, and researchers are exploring whether this coordinated response explains the striking longevity effects seen in laboratory animals. The research challenges the notion that more protein is always better, suggesting a complex interplay...

Whole Grain Consumption Linked to Improved Cardiovascular Health Factors

Whole Grain Consumption Linked to Improved Cardiovascular Health Factors

A new systematic review and meta-analysis published in the European Heart Journal indicates that consuming whole grains is associated with improvements in several cardiovascular disease risk factors. The research, which analyzed data from 87 randomized controlled trials involving over 6,500 participants, found that daily intake of approximately 60 to 100 grams of whole grains led to modest reductions in total cholesterol, LDL ('bad') cholesterol, and improvements in systolic blood pressure, fasting blood sugar, weight, and waist circumference. The study emphasizes replacing refined grains with whole grains rather than simply adding more carbohydrates to the diet. Examples of beneficial whole grains include oats, brown rice, bulgur, buckwheat, barley, and whole-grain bread with simple ingredient lists. The researchers also highlighted the importance of choosing less processed whole-grain options, noting the association between high consumption of ultra-processed foods and increased health risks.