Origins of Gastric Cancer

Gastric tumors can arise from a single mutation in a single stomach gland, according to Lydia Gutierrez-Gonzalez et al. in the April issue of Gastroenterology. To study how gastric dysplasias form and expand, Gutierrez-Gonzalez et al. analyzed 23 samples of gastric epithelium from patients who received surgery for gastric adenocarcinoma

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Cleaning for Colonoscopy

GoLytely better prepares the colon for screening colonoscopy than MiraLAX, report Michael Hjelkrem et al. in the April issue of Clinical Gastroenterology and Hepatology. Efficient cleansing of the colon is one of the most important factors for successful colonscopy examination, but also a major reason that patients avoid screening—because of

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As Incidence of HCV Infection Increases, a New Mouse Model to Study

The incidence of hepatitis C virus (HCV) infection and its complications—hepatocellular carcinoma (HCC) and cirrhosis—are increasing, according to Fasiha Kanwal et al. Fortunately, a new mouse model has been created to study disease progression and treatment, as described by Michael Washburn et al. These findings were reported in separate articles

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Advance Against Hepatitis B

Long-term treatment with entecavir, an inhibitor of hepatitis B virus (HBV) replication, reduces cirrhosis and fibrosis in patients with chronic hepatitis B infection, report Eugene Schiff et al. in the March issue of Clinical Gastroenterology and Hepatology.  Patients with chronic hepatitis B can develop liver fibrosis or cirrhosis and have

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Tracking Pancreatic Cancer Cells

Tumors spread to other parts of the body when cancer cells can escape into the bloodstream, although it is not exactly clear how they enter the circulation or decide where to form new tumors. Andrew Rhim and colleagues at the University of Pennsylvania have developed a technology to label tumor

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Anti-Inflammatory Drugs Prevent Colorectal Cancer (for Some)

Aspirin and other anti-inflammatory drugs prevent colorectal cancer (CRC) in some people but not others, according to the March issue of Gastroenterology. Andrew Chan et al. found that these drugs reduce the risk of CRC only in women with high levels of soluble tumor necrosis factor receptor 2 (sTNFR-2), a

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What Causes Weight Gain After Gastric Bypass?

A surgical complication, rather than eating habits, can cause patients to regain lost weight after gastric bypass surgery, reports Barham K. Abu Dayyeh et al. in the March issue of Clinical Gastroenterology and Hepatology. The authors correlated increased diameter of the gastrojejunal stoma with long-term weight gain after this common

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Same Liver, New Location

Functional liver tissue can be grown in lymph nodes of mice and rescue them from lethal hepatic disease, reports Toshitaka Hoppo et al. in the February issue of Gastroenterology—lymph nodes therefore might someday be used as sites for hepatocyte transplantation in patients with end-stage liver disease. Many patients with chronic hepatic

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What is the Best Strategy for Treating Pediatric Autoimmune Hepatitis?

Immunosuppressant therapy causes permanent recovery from liver failure in most children with autoimmune hepatitis (AIH), reports Miriam Cuarterolo et al. in the February issue of Clinical Gastroenterology and Hepatology. AIH is a progressive, inflammatory liver disease that predominantly affects girls before puberty. Without treatment, it progresses to cirrhosis and liver

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IBD Guardian

Researchers have identified a molecule that protects colon cells from injury in a mouse model of inflammatory bowel disease (IBD). The study, published by Beth McConnell et al. in the February issue of Gastroenterology, reports that Klf5 controls genes that mediate recovery from colonic injury. Klf5 regulates transcription of genes

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Unsafe at Any Speed?

Driving privileges of people with hepatic encephalopathy (HE) should be restricted until they demonstrate that they are safe on the road, according to Stanley Martin Cohen et al. in the February issue of Clinical Gastroenterology and Hepatology. Because there are few laws about which patients with HE or other mental

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Which Patients with Cystic Fibrosis are at Greatest Risk for Pancreatitis?

Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) cause well-known lung defects, but in the January issue of Gastroenterology, Chee Y. Ooi et al. describe specific CFTR genotypes that increase risk for pancreatitis. Most patients with cystic fibrosis that carry mutations that severely disrupt CFTR function have a pancreatic

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For Pancreatic Cysts—(Change in) Size Matters

The speed of cyst growth predicts whether branch duct intraductal papillary mucinous neoplasms (Br-IPMNs) will become malignant, according to a study by Mee Joo Kang et al. in the January issue of Clinical Gastroenterology and Hepatology. IPMN is a premalignant pancreatic lesion that progresses from adenoma to carcinoma; cysts are

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An HIV Protein and Telomerase Inhibitor Join Forces Against Cancer

Researchers have found a way to specifically kill liver cancer cells and stop tumor growth. In the January issue of Gastroenterology, Guangming Chen et al. report that fusion of a natural inhibitor of telomerase to an HIV protein stops proliferation of hepatocellular carcinoma (HCC) cells and growth of liver tumors

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