• Why do Pancreatic Tumor Cells Love the Liver?

Why do Pancreatic Tumor Cells Love the Liver?

Pancreatic ductal adenocarcinoma (PDAC) and its precursors secrete high levels of tissue inhibitor of metalloproteinases 1 (TIMP1) into the circulation, which activates hepatic stellate cells (HSCs) in liver. These cells help create a niche that promotes metastasis of pancreatic tumors to liver, researchers report in the November issue of Gastroenterology.

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  • What Changes Occur in the Intestine After Gastric Bypass vs Vertical Sleeve Gastrectomy ?

What Changes Occur in the Intestine After Gastric Bypass vs Vertical Sleeve Gastrectomy ?

The intestine adapts differently to Roux-en-Y gastric bypass (RYGB) than to vertical sleeve gastrectomy (VSG), researchers show in the February issue of Gastroenterology. RYGB increases intestinal glucose disposal whereas VSG delays glucose absorption, but each reduces glycemia. Bariatric surgeries such as RYGB and VSG are the most effective ways to resolve

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  • 6000-Calorie Diet Reveals Mechanisms of Obesity-Linked Insulin Resistance

6000-Calorie Diet Reveals Mechanisms of Obesity-Linked Insulin Resistance

A study in which researchers place healthy individuals on 6000-calorie per day diets has identified biologic changes that take place during the early stages of obesity and could lead to insulin resistance. The study, published in the 9 September issue of Science Translational Medicine, pinpoints oxidative stress as the potential

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Are Mitochondria Involved in Ulcerative Colitis?

Changes in mitochondrial DNA that increase levels of ATP in the intestinal mucosa protect mice from colitis, according to the November issue of Gastroenterology. Strategies to increase mitochondrial ATP production by intestinal epithelial cells might therefore be developed to treat patients with ulcerative colitis (UC). Characteristics of UC include reduced levels

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Can a microRNA Control Inflammation in Patients With Ulcerative Colitis?

Loss of a non-coding RNA that regulates inflammation could contribute to development of ulcerative colitis (UC) in children, according to the October issue of Gastroenterology. UC and Crohn’s disease are chronic inflammatory bowel diseases that affect adults and children. These diseases are complex, and caused by combinations of genetic and

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What is Intrahepatic Cholangiocarcinoma?

Researchers have found that intrahepatic cholangiocarcinomas (ICCs) are really 2 different groups of tumors, based on molecular and genetic analyses, reported in the April issue of Gastroenterology. These findings identify class-specific mechanisms of oncogenesis that could lead to new treatment approaches for this common liver cancer. Cholangiocarcinoma is the second most

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