• Review: How Does the Tumor Stroma Contribute to Pancreatic Cancer Progression, and Can We Stop It?

Review: How Does the Tumor Stroma Contribute to Pancreatic Cancer Progression, and Can We Stop It?

Recently developed approaches for reshaping the pancreatic tumor stroma might be used in treatments for pancreatic cancer, according to a review in the March issue of Gastroenterology. The authors discuss relationships among the pancreatic tumor extracellular matrix, the vasculature, the immune system, and metabolism, and how these might be manipulated to stop pancreatic tumor

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  • What Happens in the Intestine in Patients With Wilson Disease?

What Happens in the Intestine in Patients With Wilson Disease?

ATP7B regulates vesicular storage of copper and buffers its levels in enterocytes to maintain a range necessary for formation of lipid-transporting vesicles, researchers report in the January issue of Gastroenterology. The authors show that a misbalance of copper and lipid in the intestine could account for gastrointestinal manifestations of Wilson

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  • How Could the Intestinal Microbiota Contribute to Celiac Disease?

How Could the Intestinal Microbiota Contribute to Celiac Disease?

Bacteria in the small intestine metabolize gluten differently, to increase or decrease its immunogenicity, researchers report in the October issue of Gastroenterology. This interaction between microbes and gluten could help determine the risk for autoimmune enteropathy in genetically susceptible individuals and underlie the reported association between dysbiosis and celiac disease.

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  • Can Microbial Dysbiosis Cause Colonic Inflammation?

Can Microbial Dysbiosis Cause Colonic Inflammation?

Dysbiosis contributes to the pathogenesis of inflammatory bowel diseases (IBD) by altering colonic expression of genes that regulate inflammation and the immune response, researchers report in the July issue of Cellular and Molecular Gastroenterology and Hepatology. An altered intestinal microbiota composition has been associated with IBD. However, it is not

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  • How Could Variants in TM6SF2 Affect Risk for NAFLD?

How Could Variants in TM6SF2 Affect Risk for NAFLD?

The human transmembrane 6 superfamily member 2 (TM6SF2) protein regulates cholesterol metabolism in mice, researchers report in the May issue of Gastroenterology. These findings provide insight into the how a variant of TM6SF2 (encoding the amino acid change E167K) reduces total cholesterol and low-density lipoprotein cholesterol (LDL-c) levels in humans, and

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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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  • Researchers Determine how FTO Variant Increases Obesity Risk

Researchers Determine how FTO Variant Increases Obesity Risk

Variants in the FTO gene have been associated with obesity and metabolic disease, but little is known about the function of its product. Researchers now show how this gene regulates body weight. FTO encodes a nuclear protein of the AlkB related non-heme iron and 2-oxoglutarate-dependent oxygenase superfamily. In the NIH

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  • Can we Reduce Muscle Cramps in Patients with Cirrhosis?

Can we Reduce Muscle Cramps in Patients with Cirrhosis?

L-carnitine appears to be safe and effective for reducing muscle cramps in patients with cirrhosis, researchers report in the August issue of Clinical Gastroenterology and Hepatology. Many patients with cirrhosis develop frequent muscle cramps, which reduce their quality of life. L-carnitine (L-beta-hydroxy-gamma-N-trimethyl aminobutyric acid) is an amino acid that transports

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  • What Causes Different Types of Fatty Liver Disease?

What Causes Different Types of Fatty Liver Disease?

Hepatic steatosis and steatohepatitis are increasing in prevalence, and can progress to histologically identical, more severe liver disease. They are associated with 3 main factors: alcohol, obesity or metabolic syndrome, and exposure to toxins. Researchers review the similarities, differences, and pathogenic mechanisms of alcohol-associated steatohepatitis (ASH), nonalcoholic steatohepatitis (NASH), and toxicant-associated fatty liver

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  • What Causes Visceral Hypersensitivity in Patients with Irritable Bowel Syndrome?

What Causes Visceral Hypersensitivity in Patients with Irritable Bowel Syndrome?

Colon tissues from patients with irritable bowel syndrome (IBS) produce increased levels of specific polyunsaturated fatty acid (PUFA) metabolites, which stimulate sensory neurons to generate visceral hypersensitivity. This occurs via activation of transient receptor potential (TRP) cation channels, researchers show in the August issue of Gastroenterology. IBS is characterized by abdominal

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