Covering the Cover Gastroenterology Anson W. Lowe, Richard H. Moseley  Gastroenterology  Volume 142, Issue 4, Pages 681-683 (April 2012) DOI: 10.1053/j.gastro.2012.02.032 Copyright © 2012 AGA Institute Terms and Conditions

Figure 1 Staining with Alcian blue PAS (red) for intestinal and gastric mucins, respectively, which are characteristic for metaplasia. Folic acid (FA) supplementation reduces the development of metaplasia as represented by mucin staining. Gastroenterology 2012 142, 681-683DOI: (10.1053/j.gastro.2012.02.032) Copyright © 2012 AGA Institute Terms and Conditions

Figure 2 Proposed model for ERα-related suppression of HBV replication. ERα is translocated into the nucleus and binds to HNF4α through the ERα hinge region, reducing HNF4α DNA-binding capacity to, and activity of, HBV enhancer I. This interaction impairs HBV transcription, leading to reduction in HBV titers. Gastroenterology 2012 142, 681-683DOI: (10.1053/j.gastro.2012.02.032) Copyright © 2012 AGA Institute Terms and Conditions

Figure 3 Steps in EUS-mediated gallbladder drainage. (A) EUS of needle insertion into gallbladder. (B) Coiling of the guidewire in the gallbladder. (C) Nasocholecystogram after nasobiliary drainage tube placement. Gastroenterology 2012 142, 681-683DOI: (10.1053/j.gastro.2012.02.032) Copyright © 2012 AGA Institute Terms and Conditions