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  • Caffeine In The Blood Could Influence Body Fat And Diabetes Risk

    Caffeine In The Blood Could Influence Body Fat And Diabetes Risk

    The amount of  caffeine in your blood may influence your body fat, which can impact your risk of developing type 2 diabetes and cardiovascular diseases.
    Credit: Pixabay

    The amount of  caffeine in your blood may influence your body fat, which can impact your risk of developing type 2 diabetes and cardiovascular diseases.

    These findings come from a 2023 study that utilized genetic markers to establish a clearer connection between caffeine levels, BMI, and the risk of type 2 diabetes.

    Experts Explore Calorie-Free Caffeinated Drinks as a Potential Aid in Body Fat Reduction

    Experts from the Karolinska Institute in Sweden, the University of Bristol, and Imperial College London suggested investigating calorie-free caffeinated beverages as a potential way to help reduce body fat.

    In their March 2023 paper, the researchers stated that genetically predicted higher plasma caffeine concentrations led to lower BMI and overall body fat mass.

    “Additionally, researchers found that genetically predicted higher plasma caffeine levels lowered the risk of developing type 2 diabetes. They estimated that about half of caffeine’s effect on diabetes risk worked through reducing BMI.”

    “Study of 10,000 Genomes Links Caffeine Metabolism Genes to Body Fat Levels”

    Researchers analyzed data from nearly 10,000 individuals, drawing from existing genetic databases and focusing on variations in or near specific genes that influence how quickly the body metabolizes caffeine.

    Overall, individuals with variations in genes like  CYP1A2 and its regulator, AHR  typically metabolize caffeine more slowly, allowing it to stay in the bloodstream longer. However, they also tend to consume less caffeine overall.

    The researchers used an approach known as Mendelian randomization to identify potential causal links between the genetic variations, conditions like diabetes, body mass, and lifestyle factors.

    Credit: Caffeine in your blood may help determine your risk of developing type 2 diabetes and cardiovascular diseases. (StockSnap/Pixabay)

    The study found a significant connection between caffeine levels, BMI, and the risk of type 2 diabetes, but researchers observed no link between blood caffeine levels and cardiovascular diseases like atrial fibrillation, heart failure, or stroke.

    Exploring Coffee’s Impact on Heart Health and Body Weight

    Previous studies have associated a moderate increase in caffeine intake with improved heart health and a lower BMI. This research provides further insight into the effects of coffee on the body.

    We must remember that caffeine can have negative effects on the body, so we should exercise caution when considering its benefits. However, this latest study is a key step in determining the optimal amount of caffeine.

    While small, short-term studies have demonstrated that caffeine intake leads to a reduction in weight and fat mass, the long-term effects of caffeine consumption remain unknown, the researchers noted.

    “Given the widespread global consumption of caffeine, even its minor metabolic effects could have significant health consequences.“

    The team suggests that the observed link could be due to caffeine’s ability to enhance thermogenesis (heat production) and fat oxidation (converting fat into energy), both of which are crucial for overall metabolism.

    Credit: The research adds to what we know about caffeine’s effects. (Guido Mieth/Getty Images)

    Although this study included a large sample, Mendelian randomization is not foolproof, and there may be other unaccounted factors influencing the results. Further research is needed to establish cause and effect.

    “Randomized controlled trials are needed to determine whether non-caloric caffeine-containing beverages could help reduce the risk of obesity and type 2 diabetes,” said Benjamin Woolf, a genetic epidemiologist at the University of Bristol.

    Read the original article on: Sciencealert

    Read more: Study Discovers Link Between Blood Caffeine Levels and Body Fat as well as Diabetes Risk

  • Hidden Fat Can Predict Alzheimer’s Up to 20 Years Before Symptoms Appear

    Hidden Fat Can Predict Alzheimer’s Up to 20 Years Before Symptoms Appear

    Researchers have linked a specific type of body fat to the buildup of abnormal brain proteins—hallmarks of Alzheimer’s disease—up to 20 years before the earliest symptoms of dementia appear. This finding, presented at the annual meeting of the Radiological Society of North America (RSNA), highlights the potential for lifestyle changes targeting visceral fat to influence Alzheimer’s development.
    Credit: Pixabay

    Researchers have linked a specific type of body fat to the buildup of abnormal brain proteins—hallmarks of Alzheimer’s disease—up to 20 years before the earliest symptoms of dementia appear. This finding, presented at the annual meeting of the Radiological Society of North America (RSNA), highlights the potential for lifestyle changes targeting visceral fat to influence Alzheimer’s development.

    “This discovery is significant because we focused on Alzheimer’s pathology in midlife, during the 40s and 50s, when interventions like weight loss and reducing visceral fat could be more effective in preventing or delaying the disease,” explained lead author Dr. Mahsa Dolatshahi, a postdoctoral research associate at Mallinckrodt Institute of Radiology (MIR), Washington University.

    Alzheimer’s currently affects an estimated 6.9 million Americans aged 65 and older, with numbers projected to rise to 13 million by 2050 without medical breakthroughs. The study focused on how modifiable lifestyle factors, including obesity, fat distribution, and metabolism, relate to Alzheimer’s pathology.

    Eighty cognitively normal middle-aged participants (average age: 49.4 years; 62.5% female) underwent brain PET scans, body MRI, and metabolic assessments. On average, participants had a BMI of 32.31, with 57.5% classified as obese. MRI scans measured subcutaneous fat (under the skin) and visceral fat (around organs), while PET scans detected amyloid plaques and tau tangles, key Alzheimer’s markers.

    “We analyzed BMI, visceral fat, subcutaneous fat, liver fat, thigh fat and muscle, insulin resistance, and HDL cholesterol in relation to amyloid and tau deposition,” said Dr. Dolatshahi.

    Visceral Fat Strongly Linked to Amyloid Accumulation, Mitigated by Higher HDL Levels

    The results showed that higher visceral fat correlated with increased amyloid, explaining 77% of the effect of high BMI on amyloid accumulation. No other fat types showed a similar link. Additionally, higher insulin resistance and lower HDL levels were associated with elevated amyloid levels. Notably, participants with higher HDL showed a reduced impact of visceral fat on amyloid pathology.

    “Our findings reveal that visceral fat plays a critical role in Alzheimer’s-related brain changes decades before symptoms arise,” Dr. Dolatshahi said. “This emphasizes the need to target metabolic and lipid issues linked to obesity in managing Alzheimer’s risk.”

    The team also presented another study at RSNA 2024, showing that obesity and visceral fat reduce brain blood flow. Using brain and abdominal MRIs, they found that individuals with high visceral fat had lower whole-brain blood flow compared to those with low visceral fat, whereas subcutaneous fat had no significant impact.

    “This research could have profound public health implications,” said senior author Dr. Cyrus Raji. “With nearly 75% of Americans classified as overweight or obese, addressing visceral obesity through lifestyle changes or weight-loss medications may improve brain health, increase blood flow, and reduce Alzheimer’s risk.”

    Read Original Article: ScienceDaily

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  • Natural fat Molecule Reduces Heart Inflammation in Diabetics by Half and Boosts Function.

    Natural fat Molecule Reduces Heart Inflammation in Diabetics by Half and Boosts Function.

    A naturally occurring fat molecule, lipoxin A4 (LXA4), has been shown to reduce heart inflammation and scarring caused by diabetes, significantly improving cardiac function, according to new research. These findings pave the way for potential new treatments for diabetes-related heart disease.
    Credit: Pixabay

    A naturally occurring fat molecule, lipoxin A4 (LXA4), has been shown to reduce heart inflammation and scarring caused by diabetes, significantly improving cardiac function, according to new research. These findings pave the way for potential new treatments for diabetes-related heart disease.

    Diabetes often leads to serious cardiovascular conditions such as atherosclerosis, heart attacks, cardiomyopathy, and cardiac failure. While the exact mechanisms linking diabetes to these conditions remain unclear, chronic inflammation plays a key role.

    Researchers at Monash University in Melbourne, Australia, discovered that LXA4 can deactivate the body’s inflammatory response, helping to prevent long-term inflammation and improve heart function in diabetic individuals. “LXA4 was found to cut inflammation and scar tissue formation in half, specifically in diabetic heart disease,” explained Dr. Cheng Xue Qin from the Monash Institute of Pharmaceutical Sciences (MIPS). “With advancements in developing more drug-like versions of LXA4, this therapy shows promise for managing diabetic heart conditions.”

    Exploring Lipoxins’ Potential to Resolve Diabetic Heart Inflammation and Improve Cardiac Function

    Inflammation typically involves initiation and resolution phases. During resolution, lipid mediators like lipoxins help restore balance by reducing inflammation. However, unresolved inflammation leads to complications. In both animal and human studies, diabetes has been linked to persistent, low-grade systemic inflammation driven by pro-inflammatory cytokines. This inflammation activates molecular pathways that enlarge cardiac muscle cells (cardiomyocytes), ultimately impairing heart function. Given lipoxins’ ability to resolve inflammation, researchers explored their potential to combat diabetic heart inflammation.

    Over six weeks, diabetic mice with heart disease received biweekly LXA4 injections. These mice exhibited symptoms such as heart inflammation, muscle scarring, cardiomyocyte dysfunction, hypertrophy-related gene expression, and early signs of left ventricular impairment due to muscle stiffening.

    “LXA4 stimulated reparative macrophages, a type of white blood cell, in the diabetic heart,” said Ting Fu Master, a MIPS PhD candidate and lead author of the study. “These beneficial macrophages reduced scarring and improved overall heart function.”

    Crucially, these improvements occurred independently of blood sugar levels. The researchers now aim to develop an LXA4-based drug and explore its potential for treating other inflammatory conditions.

    Read Original Article: New Atlas

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  • Kombucha Microbes Mimic Fasting by Breaking Down Fat Stores Effortlessly

    Kombucha Microbes Mimic Fasting by Breaking Down Fat Stores Effortlessly

    While kombucha might not suit everyone’s taste, it could offer some benefits similar to fasting, minus the challenge of actually fasting. Researchers have found that when the yeasts and bacteria from this fermented, slightly sweetened tea colonize the gut, they can influence fat metabolism without requiring any other dietary adjustments, leading to reduced fat storage.
    Credit: Pixabay

    While kombucha might not suit everyone’s taste, it could offer some benefits similar to fasting, minus the challenge of actually fasting. Researchers have found that when the yeasts and bacteria from this fermented, slightly sweetened tea colonize the gut, they can influence fat metabolism without requiring any other dietary adjustments, leading to reduced fat storage.

    At the core of these findings is kombucha tea’s SCOBY (Symbiotic Culture of Bacteria and Yeasts)—a gelatinous, microbe-rich layer that forms during fermentation. This culture includes probiotics like Acetobacter, Lactobacillus, and Komagataeibacter, which have previously been associated with health benefits such as lowered blood pressure.

    A team from the University of North Carolina at Chapel Hill recently discovered how, in the model organism Caenorhabditis elegans, kombucha microbes can directly impact the gene expression in the intestines, particularly those genes that regulate fat metabolism. These introduced microbes boosted proteins essential for breaking down fat, while also suppressing proteins involved in building triglycerides, the most common form of fat in the human body.

    Kombucha’s Impact on Fat Metabolism

    Triglycerides play a crucial role in energy storage, but an excess can lead to obesity-related health issues such as heart disease. By altering fat metabolism and modulating specific proteins, kombucha consumption created cellular changes similar to fasting, but without food restriction.

    “We were surprised to observe that animals on a diet containing kombucha microbes showed less fat accumulation, lower triglyceride levels, and smaller lipid droplets compared to other diets,” the researchers stated. “This suggests that kombucha’s microbes can induce a ‘fasting-like’ state, even with ample nutrients available.”

    While this study was conducted in C. elegans—a microscopic worm that doesn’t experience fat storage quite like humans—the researchers believe that similar metabolic effects might occur in humans.

    Growing Evidence for Kombucha’s Health Benefits

    This adds further support to the health claims surrounding kombucha, which recent studies have linked to blood sugar regulation in people with type 2 diabetes. Other research has shown kombucha’s potential as an antioxidant, an anti-inflammatory, and an antibacterial agent. However, some studies have yet to find significant health impacts from kombucha.

    As for this research, scientists emphasize that more studies are needed to confirm whether kombucha’s “fasting-like” effects might apply to humans aiming for weight management.

    “We want to clarify that we are not making any definitive claims about kombucha tea’s role in human health practices or recreational use,” the researchers noted. “Our findings offer an exciting look into how kombucha microbes may reprogram host metabolism and pave the way for future studies in mammals to uncover the biological basis of kombucha tea’s potential health benefits.”

    Read Original Article: New Atlas

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