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Can a bout of exercise harm the human heart?

This commentary discusses a study by Stewart et al. (2016) that examined the effects of acute endurance exercise on cardiac function in recreationally active men. Participants performed two cycling trials: 90 minutes at heavy intensity and 120 minutes at moderate intensity. Findings indicated transient reductions in left and right ventricular

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June 26, 2025 No Comments

Compact Arterial Monitoring Device Use in Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA): A Simple Validation Study in Swine

This 2024 study evaluated the accuracy of a compact, disposable pressure monitoring device (Compass™) used during partial REBOA procedures in a swine model. Four Yorkshire pigs underwent induced hemorrhagic shock followed by REBOA with the Compass™ transducer. Mean arterial pressures recorded by the device were compared to standard arterial line

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June 26, 2025 No Comments

Bone Health After Exercise Alone, GLP-1 Receptor Agonist Treatment, or Combination Treatment: A Secondary Analysis of a Randomized Clinical Trial

This 2024 secondary analysis of a randomized clinical trial examined the effects of exercise, GLP-1 receptor agonist (liraglutide) treatment, and their combination on bone health in adults with obesity. After an initial 8-week low-calorie diet, 195 participants were randomized into four groups: exercise alone, liraglutide alone, combination of both, or

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June 26, 2025 No Comments

Insufficient sleep predicts poor weight loss maintenance after 1 year

This 2023 randomized controlled trial investigated the impact of sleep duration and quality on weight loss maintenance in adults with obesity. After an initial 8-week low-calorie diet resulting in an average weight loss of 13.1 kg, participants were monitored over a 1-year maintenance phase. Those with short sleep duration (5)
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Effects of oral α-lipoic acid administration on body weight in overweight or obese subjects: a crossover randomized, double-blind, placebo-controlled trial

This 2017 randomized, double-blind, placebo-controlled crossover trial evaluated the effects of α-lipoic acid (ALA) supplementation on body weight in overweight or obese individuals. A total of 103 Chinese Han participants with a BMI ≥25 kg/m² were randomized to receive either 1200 mg/day of ALA or placebo for 8 weeks, followed
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The effect of berberine supplementation on obesity parameters, inflammation and liver function enzymes: A systematic review and meta-analysis of randomized controlled trials

This 2020 systematic review and meta-analysis evaluated the effects of berberine supplementation on obesity-related parameters, inflammation, and liver function enzymes. Analyzing 12 randomized controlled trials, the study found that berberine intake led to significant reductions in body weight (mean difference: -2.07 kg), body mass index (BMI), waist circumference, and C-reactive
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Supplementation of green coffee bean extract in healthy overweight subjects increases lean mass/fat mass ratio: A randomized, double-blind clinical study

This 2021 randomized, double-blind, placebo-controlled clinical trial evaluated the effects of daily supplementation with 500 mg of CGA-7™, a standardized green coffee bean extract rich in chlorogenic acid isomers, over 12 weeks in 71 healthy overweight adults (BMI 25–30 kg/m²). The CGA-7 group showed significant reductions in body weight, BMI,
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Avoiding Alzheimer’s disease: The important causative role of divalent copper ingestion

This 2019 review by Dr. George J. Brewer posits that the rise in Alzheimer's disease (AD) in developed countries correlates with increased ingestion of divalent copper (Cu²⁺), primarily from copper plumbing and dietary supplements. The author argues that while humans have evolved mechanisms to safely process monovalent copper (Cu¹⁺) from
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Lipid-lowering effect of berberine in human subjects and rats

This 2012 pilot study assessed the lipid-lowering effects of berberine in obese human subjects and Sprague-Dawley rats. Participants received 500 mg of berberine orally three times daily for 12 weeks. In humans, berberine administration resulted in a significant reduction in triglyceride levels by 23% and total cholesterol by 12.2%, along
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Effects of a ready-to-drink thermogenic beverage on resting energy expenditure, hemodynamic function, and subjective outcomes

This 2023 randomized, double-blind, placebo-controlled crossover study evaluated the acute effects of a ready-to-drink (RTD) thermogenic beverage on resting energy expenditure (REE), hemodynamic function, and subjective outcomes in 28 healthy adults (14 males, 14 females; mean age 23.3 years). Participants consumed either the RTD beverage containing 360 mg of caffeine
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Histamine and the Regulation of Body Weight

This review article explores the role of histamine as a central neurotransmitter in regulating appetite and metabolism. Histamine exerts anorexigenic effects primarily through H₁ receptor stimulation, mediating leptin's inhibitory impact on appetite and potentially delaying leptin resistance in high-fat diet-induced obesity. Additionally, histamine may enhance lipolysis, contributing to weight regulation.
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Gut bacterial microbiota and obesity

This 2013 review explores the relationship between gut microbiota composition and obesity. It highlights that obese individuals often exhibit a higher Firmicutes-to-Bacteroidetes ratio, which may enhance energy extraction from the diet. Animal studies demonstrate that transferring microbiota from obese to lean mice can induce weight gain, suggesting a causal role
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