Molecular Mechanisms of Roux-en-Y Gastric Bypass

Many of the beneficial effects of Roux-en-Y gastric bypass (RYGB), including improved glucose homeostasis, require the actions of melanocortin-4 receptors (MC4Rs) on autonomic neurons, according to the March issue of Gastroenterology. Fasting glycemia often improves within days of RYGB (see below figure), which produces greater improvements in glucose homeostasis than

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Does the Western Diet Promote Endotoxemia and Inflammation?

A high-fat diet can cause endotoxemia, which promotes the systemic inflammation and metabolic disorders associated with obesity, according to a human study published in the May issue of Gastroenterology. Chronic endotoxemia (the presence of endotoxins such as lipopolysaccharide in blood) occurs with obesity, yet little is known about the source

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