Gastroenterology Research and Practice https://www.hindawi.com The latest articles from Hindawi © 2017 , Hindawi Limited . All rights reserved. Parallel Changes in Harvey-Bradshaw Index, TNFα, and Intestinal Fatty Acid Binding Protein in Response to Infliximab in Crohn’s Disease Mon, 23 Oct 2017 08:11:01 +0000 http://www.hindawi.com/journals/grp/2017/1745918/ Intestinal fatty acid binding protein (I-FABP) indicates barrier integrity. Aims: determine if I-FABP is elevated in active Crohn’s disease (CD) and if I-FABP parallels anti-TNFα antibody (infliximab) induced lowering of TNFα and Harvey-Bradshaw Index (HBI) as potential indicator of mucosal healing. I-FABP distribution along human gut was determined. Serum from 10 CD patients collected during first three consecutive infliximab treatments with matched pretreatment and follow-up samples one week after each treatment and corresponding HBI data were analyzed. I-FABP reference interval was established from 31 healthy subjects with normal gut permeability. I-FABP and TNFα were measured by ELISA; CRP was measured by nephelometry. Healthy tissue was used for I-FABP immunohistochemistry. Pretreatment CD patient TNFα was 1.6-fold higher than in-house reference interval, while I-FABP was 2.5-fold higher, which lowered at follow-ups. Combining all 30 infusion/follow-up pairs also revealed changes in I-FABP. HBI followed this pattern; CRP declined gradually. I-FABP was expressed in epithelium of stomach, jejunum, ileum, and colon, with the highest expression in jejunum and ileum. I-FABP is elevated in active CD with a magnitude comparable to TNFα. Parallel infliximab effects on TNFα, HBI, and I-FABP were found. I-FABP may be useful as an intestine selective prognostic marker in CD. Anas Kh. Al-Saffar, Carl Hampus Meijer, Venkata Ram Gannavarapu, Gustav Hall, Yichen Li, Hetzel O. Diaz Tartera, Mikael Lördal, Tryggve Ljung, Per M. Hellström, and Dominic-Luc Webb Copyright © 2017 Anas Kh. Al-Saffar et al. All rights reserved. Functional Bowel Disorders Are Associated with a Central Immune Activation Mon, 23 Oct 2017 06:51:25 +0000 http://www.hindawi.com/journals/grp/2017/1642912/ Background. Subjects with depression and unexplained neurological symptoms have a high prevalence of gastrointestinal comorbidity probably related to the brain-gut communication. This study explored associations between functional gastrointestinal disorders (FGID) and inflammatory markers in subjects with these disorders. Methods. The FGID, including irritable bowel syndrome (IBS), were classified according to the Rome III criteria, and degree of symptoms was assessed with IBS symptom severity score (IBS-SSS). A range of interleukins (IL), chemokines and growth factors, tryptophan, and kynurenine were analysed in serum and the cerebrospinal fluid (CSF), and short-chain fatty acids (SCFA) were analysed in the faeces. The results are reported as partial correlation (pc) and values. Results. Sixty-six subjects were included. IBS was associated with high levels of tryptophan () and kynurenine () and low level of IL-10 () in the CSF. IBS-SSS was associated with high tumor necrosis factor and low IL-10 in the CSF; and and and , respectively. Propionic minus butyric acid in faeces was negatively associated with IL-10 in the CSF (, ). Conclusions. FGID were associated with a proinflammatory immune activation in the central nervous system and a disturbed tryptophan metabolism that could have been mediated by the faecal microbiota. Per G. Farup, Thor Ueland, Knut Rudi, Stian Lydersen, and Knut Hestad Copyright © 2017 Per G. Farup et al. All rights reserved. Pulmonary Complications after Surgery for Rectal Cancer in Elderly Patients: Evaluation of Laparoscopic versus Open Approach from a Multicenter Study on 477 Consecutive Cases Sun, 22 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/5893890/ Aim. To evaluate the impact of open or laparoscopic rectal surgery on pulmonary complications in elderly (>75 years old) patients. Methods. Data from consecutive patients who underwent elective laparoscopic or open rectal surgery for cancer were collected prospectively from 3 institutions. Pulmonary complications were defined according to the ACS/NSQUIP definition. Results. A total of 477 patients (laparoscopic group: 242, open group: 235) were included in the analysis. Postoperative pulmonary complications were significantly more common after open surgery (8 out of 242 patients (3.3%) versus 23 out of 235 patients (9.8%); ). In addition, PPC occurrence was associated with the increasing of postoperative pain (5.04 ± 1.62 versus 5.03 ± 1.58; ) and the increasing of operative time (270.06 ± 51.49 versus 237.37 ± 65.97; ). Conclusion. Our results are encouraging to consider laparoscopic surgery a safety and effective way to treat rectal cancer in elderly patients, highlighting that laparoscopic surgery reduces the occurrence of postoperative pulmonary complications. Marco Milone, Ugo Elmore, Andrea Vignali, Alfredo Mellano, Nicola Gennarelli, Michele Manigrasso, Francesco Milone, Giovanni Domenico De Palma, Andrea Muratore, and Riccardo Rosati Copyright © 2017 Marco Milone et al. All rights reserved. The NIMO Scandinavian Study: A Prospective Observational Study of Iron Isomaltoside Treatment in Patients with Iron Deficiency Sun, 22 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/4585164/ Background. Intravenous iron allows for efficient and well-tolerated treatment in iron deficiency and is routinely used in diseases of the gastrointestinal tract. Objective. The aims of this study were to determine the probability of relapse of iron deficiency over time and to investigate treatment routine, effectiveness, and safety of iron isomaltoside. Methods. A total of 282 patients treated with iron isomaltoside were observed for two treatments or a minimum of one year. Results. Out of 282 patients, 82 had Crohn’s disease and 67 had ulcerative colitis. Another 133 patients had chronic blood loss, malabsorption, or malignancy. Patients who received an iron isomaltoside dose above 1000 mg had a 65% lower probability of needing retreatment compared with those given 1000 mg. A clinically significant treatment response was shown, but in 71/191 (37%) of patients, anaemia was not corrected. The mean dose given was 1100 mg, lower than the calculated total iron need of 1481 mg. Adverse drug reactions were reported in 4% of patients. Conclusion. Iron isomaltoside is effective with a good safety profile, and high doses reduce the need for retreatment over time. Several patients were anaemic after treatment, indicating that doses were inadequate for full iron correction. This trial is registered with NCT01900197. Svein Oskar Frigstad, Anne Haaber, Antal Bajor, Jan Fallingborg, Per Hammarlund, Ole K. Bonderup, Håkan Blom, Terje Rannem, and Per M. Hellström Copyright © 2017 Svein Oskar Frigstad et al. All rights reserved. First-Line Helicobacter pylori Eradication with Vonoprazan, Clarithromycin, and Metronidazole in Patients Allergic to Penicillin Wed, 18 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/2019802/ Aim. To assess the efficacy of 7-day first-line Helicobacter pylori eradication with vonoprazan (VPZ), clarithromycin (CAM), and metronidazole (MNZ) in patients with penicillin allergy. Methods. Patients with penicillin allergy, diagnosed with Helicobacter pylori infection and did not have history of Helicobacter pylori eradication, were eligible for the study. Twenty patients were prospectively treated with 20 mg VPZ twice daily, 200 or 400 mg CAM twice daily, and 250 mg MNZ twice daily for 7 days. We also collected the data from 30 patients retrospectively treated with proton pump inhibitor (PPI), CAM, and MNZ. Safety was evaluated in patients completing an adverse effect questionnaire. Results. Both the intention-to-treat and per-protocol effectiveness of VPZ-based eradication were 100% (95% CI: 86.1–100%; ). The eradication rates of PPI-based regimen were 83.3% (95% CI: 65.3–94.4%) in the ITT and 82.7% (95% CI: 64.2–94.2%) in the PP analyses. Abdominal fullness was more frequent in VCM compared to PCM. However, all patients with VCM regimen had taken 100% of their course of medication. Conclusion. Triple therapy with VPZ, CAM, and MNZ is well tolerated and effective for eradicating Helicobacter pylori in patients allergic to penicillin. This study was registered in the UMIN Clinical Trials Registry as UMIN000016335. Soichiro Sue, Nobumi Suzuki, Wataru Shibata, Tomohiko Sasaki, Hiroaki Yamada, Hiroaki Kaneko, Toshihide Tamura, Tomohiro Ishii, Masaaki Kondo, and Shin Maeda Copyright © 2017 Soichiro Sue et al. All rights reserved. Quercetin Pretreatment Attenuates Hepatic Ischemia Reperfusion-Induced Apoptosis and Autophagy by Inhibiting ERK/NF-κB Pathway Mon, 16 Oct 2017 09:02:41 +0000 http://www.hindawi.com/journals/grp/2017/9724217/ Background. Hepatic ischemia reperfusion (IR) injury is a common phenomenon in transplantation or trauma. The aim of the present study was to determine the protective effect of quercetin (QE) on hepatic IR injury via the ERK/NF-κB pathway. Methods. Mice were randomized into the sham, IR, QE100 + IR, and QE200 + IR groups. Quercetin was administered intragastrically daily at two doses (100 mg/kg and 200 mg/kg) for 5 days prior to IR injury. The expression levels of liver enzymes, inflammatory cytokines, and other marker proteins were determined at 2, 8, and 24 hours after IR. And they were compared among these groups. Results. Compared with the IR group, the treatment of QE reduced the release of cytokines, leading to inhibition of apoptosis and autophagy via downregulation of the ERK/NF-κB pathway in this model of hepatic IR injury. Conclusion. Apoptosis and autophagy caused by hepatic IR injury were inhibited by QE following a reduction in the release of inflammatory cytokines, and the relationship between the two may be associated with inactivation of the ERK/NF-κB pathway. Liwei Wu, Qinghui Zhang, Weiqi Dai, Sainan Li, Jiao Feng, Jingjing Li, Tong Liu, Shizan Xu, Wenwen Wang, Xiya Lu, Qiang Yu, Kan Chen, Yujing Xia, Jie Lu, Yingqun Zhou, Xiaoming Fan, and Chuanyong Guo Copyright © 2017 Liwei Wu et al. All rights reserved. Corrigendum to “Suppressing Syndecan-1 Shedding Ameliorates Intestinal Epithelial Inflammation through Inhibiting NF-κB Pathway and TNF-α” Mon, 16 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/3274810/ Yan Zhang, Zhongqiu Wang, Jun Liu, Zhenyu Zhang, and Ye Chen Copyright © 2017 Yan Zhang et al. All rights reserved. Routine Drainage of Colorectal Anastomoses: An Evidence-Based Review of the Current Literature Thu, 12 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/6253898/ Background. The use of prophylactic drainage after colorectal anastomoses has been long debated. This report aimed to review the current literature discussing routine drainage of colorectal anastomoses highlighting two opposite perspectives (prodrainage and antidrainage) to demonstrate the clinical utility of prophylactic drainage and its proper indications. Methods. An organized literature search was conducted querying electronic databases and Google Scholar. Articles evaluating the role of routine prophylactic drainage after colorectal anastomosis were included and divided into two categories: articles supporting the use of drains (prodrainage) and articles disputing routine drainage (antidrainage). Results. There were seven systematic reviews and/or meta-analyses, one Cochrane review, one randomized controlled trial, and six prospective or retrospective cohort studies. Six studies supported prophylactic drainage of colorectal anastomoses; the quality of these studies ranged between grade II and IV. Nine studies recommended against the use of prophylactic drainage, six studies were grade I, one was grade II, and two were grade IV. Conclusion. Since level I evidence studies including well-designed randomized trials and meta-analyses recommended against the use of pelvic drainage as a routine practice after colorectal anastomoses, we conclude no significant impact of routine drainage on the risk of anastomotic leakage after colorectal anastomoses. Sameh Hany Emile and Tito M. Abd El-Hamed Copyright © 2017 Sameh Hany Emile and Tito M. Abd El-Hamed. All rights reserved. Chewing Gum for Intestinal Function Recovery after Colorectal Cancer Surgery: A Systematic Review and Meta-Analysis Sun, 08 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/3087904/ Background. This meta-analysis was performed to assess the efficacy and safety of chewing gum in intestinal function recovery after colorectal cancer surgery. Methods. A systematic search was conducted in PubMed, Embase, Science Direct, and Cochrane library for relevant randomized controlled trials (RCTs) published until April 2017. Summary risk ratios or weighted mean differences with 95% confidence intervals were used for continuous and dichotomous outcomes, respectively. Results. 17 RCTs with a total number of 1845 patients were included. Gum chewing following colorectal cancer surgery significantly reduced the time to first passage of flatus (WMD −0.55; 95% CI −0.94 to −0.16; ), first bowel movement (WMD −0.60; 95% CI −0.87 to −0.33; ), start feeding (WMD −1.32; 95% CI −2.18 to −0.46; ), and the length of postoperative hospital stay (WMD −0.88; 95% CI −1.59 to −0.17; ), but no obvious differences were found in postoperative nausea, vomiting, abdominal distention, pneumonia, and mortality, which were consistent with the findings of intention to treat analysis. Conclusions. Chewing gum could accelerate the recovery of intestinal function after colorectal cancer surgery. However, it confers no advantage in postoperative clinical complications. Further large-scale and high-quality RCTs should be conducted to confirm these results. Binbin Mei, Wenting Wang, Feifei Cui, Zunjia Wen, and Meifen Shen Copyright © 2017 Binbin Mei et al. All rights reserved. The Differential Role of Human Cationic Trypsinogen (PRSS1) p.R122H Mutation in Hereditary and Nonhereditary Chronic Pancreatitis: A Systematic Review and Meta-Analysis Sun, 08 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/9505460/ Background. Environmental factors and genetic mutations have been increasingly recognized as risk factors for chronic pancreatitis (CP). The PRSS1 p.R122H mutation was the first discovered to affect hereditary CP, with 80% penetrance. We performed here a systematic review and meta-analysis to evaluate the associations of PRSS1 p.R122H mutation with CP of diverse etiology. Methods. The PubMed, EMBASE, and MEDLINE database were reviewed. The pooled odds ratio (OR) with 95% confidence intervals was used to evaluate the association of p.R122H mutation with CP. Initial analysis was conducted with all etiologies of CP, followed by a subgroup analysis for hereditary and nonhereditary CP, including alcoholic or idiopathic CP. Results. A total of eight case-control studies (1733 cases and 2415 controls) were identified and included. Overall, PRSS1 p.R122H mutation was significantly associated with an increased risk of CP (OR = 4.78[1.13–20.20]). Further analysis showed p.R122H mutation strongly associated with the increased risk of hereditary CP (OR = 65.52[9.09–472.48]) but not with nonhereditary CP, both alcoholic and idiopathic CP. Conclusions. Our study showing the differential role of p.R122H mutation in various etiologies of CP indicates that this complex disorder is likely influenced by multiple genetic factors as well as environmental factors. Cheng Hu, Li Wen, Lihui Deng, Chenlong Zhang, Aurelia Lugea, Hsin-Yuan Su, Richard T. Waldron, Stephen J. Pandol, and Qing Xia Copyright © 2017 Cheng Hu et al. All rights reserved. Clostridium difficile in Inflammatory Bowel Disease: A Retrospective Study Wed, 04 Oct 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/4803262/ Aim. To investigate the epidemiology and risk factors of Clostridium difficile infections (CDI) in patients with inflammatory bowel disease (IBD). Methods. This is a retrospective study of patients diagnosed with IBD. 1006 charts were screened and 654 patients met the inclusion criteria. Patients were divided into 2 cohorts based on the presence of prior diagnosis of CDI. Statistical analysis with Pearson’s chi-squared and two-sample t-test was performed. Results. The incidence of CDI among IBD patients was 6.7%. There was equal prevalence of CDI among Crohn’s disease (CD) (, 49%) and ulcerative colitis (UC) (, 51%). IBD patients acquired CDI at a mean age of 42.7 years, with 56% of infections acquired in the community and only 28% associated with healthcare. Only 30% of IBD patients with CDI had prior antibiotic use, and 16% had prior steroid use. IBD patients were significantly more likely to require biologic therapy (57% versus 37%, ) and have extraintestinal manifestations of IBD (43% versus 28%, ). Conclusions. IBD patients are more susceptible to CDI at a younger age and often lack traditional risk factors. IBD patients with at least one CDI were more likely to require biologic therapy and had greater rates of extraintestinal manifestations. William Gillespie, Neil Marya, Julien Fahed, Gregory Leslie, Krunal Patel, and David R. Cave Copyright © 2017 William Gillespie et al. All rights reserved. Postoperative MR Defecography following Failed STARR Procedure for Obstructive Defecation Syndrome: A Three-Centre Experience Tue, 03 Oct 2017 06:31:58 +0000 http://www.hindawi.com/journals/grp/2017/4392918/ Aim. To describe the abnormalities at MR imaging and related complaints in patients with poor outcome after STARR procedure. Materials and Methods. The medical records of 21 symptomatic patients from centre 1, 31 patients from centre 2, and 63 patients from centre 3 were reviewed with regard to findings at MR defecography and related symptoms. Results. Regardless of the centre, most relevant imaging features and related complaints were (a) impaired emptying (82.11%), related complaint ODS; (b) persistent rectocele >2 cm and intussusception (39.3%), split evacuation and digitation; (c) pelvic organ descent on straining (39.8%), prolapse sensation; (d) small neorectum and loss of contrast (32.5%), urgency and incontinence; (e) anastomotic stricture and granuloma (28.4%), pain; and (f) nonrelaxing puborectalis muscle (19.5%), tenesmus. Less frequent findings included rectal pocket formation (5.6%) and rectovaginal sinus tract (1.6%). Patients were referred to MR imaging with an average time interval of 5 ± 2, 4 ± 1, and 2 ± 1 years in the three centres, respectively, and only rarely by the same surgeon who performed the operation: 1/21 (4.8%) in centre 1, 3/39 (7.7%) in centre 2, and 9/63 (14.3%) in centre 3. Conclusion. Most surgeons involved in STARR operation with subsequent poor outcome do not rely on MR imaging. Vittorio Piloni, Marco Possanzini, Mattia Bergamasco, and Gianluca Santi Copyright © 2017 Vittorio Piloni et al. All rights reserved. Utility of Endoscopic Examination in the Diagnosis of Acute Graft-versus-Host Disease in the Lower Gastrointestinal Tract Mon, 02 Oct 2017 05:32:39 +0000 http://www.hindawi.com/journals/grp/2017/2145986/ Background and Aims. We retrospectively investigated the incidence of acute graft-versus-host disease (GVHD) in the lower gastrointestinal (GI) tract and the diagnostic accuracy of endoscopy. Methods. Of 1231 patients who underwent allogeneic hematopoietic stem cell transplantation between January 2005 and December 2014, 186 of whom underwent colonoscopy and biopsy and had no cytomegalovirus infection. The endoscopic findings and histologic diagnosis from these 186 patients were retrospectively analyzed. Results. Based on the histopathological findings, 171 patients were diagnosed with GVHD, accounting for 13.9% of all transplant recipients. Useful endoscopic findings for the diagnosis of GVHD were atrophy of the ileocecal valve and villous atrophy in the terminal ileum and tortoise shell-like mucosae, edema, and low vascular permeability in the colon. Even when no mucosal abnormality was observed, the incidence of GVHD was 78.9% in the terminal ileum and 75.0% in the colon. Furthermore, patients with mucosal exfoliation, although infrequent, were all diagnosed with grade 3/4 GVHD. Conclusions. It is important to perform endoscopy proactively for the early diagnosis of GVHD, and biopsy should be performed even when no abnormality is observed. In addition, because patients with mucosal exfoliation are extremely likely to have grade 3/4 GVHD, early treatment should be initiated. Kosuke Nomura, Toshiro Iizuka, Daisuke Kaji, Hisashi Yamamoto, Yasutaka Kuribayashi, Masami Tanaka, Tsukasa Furuhata, Satoshi Yamashita, Daisuke Kikuchi, Akira Matsui, Toshifumi Mitani, Yasunori Ota, Shuichi Taniguchi, and Shu Hoteya Copyright © 2017 Kosuke Nomura et al. All rights reserved. Colorectal Cancer Blood-Based Biomarkers Mon, 25 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/2195361/ Mortality and morbidity associated with colorectal cancer (CRC) are increasing globally, partly due to lack of early detection of the disease. The screening is usually performed with colonoscopy, which is invasive and unpleasant, discouraging participation in the screening. As a source of noninvasive and easily accessible biomarkers, liquid biopsies are emerging. Blood-based biomarkers have the potential as diagnostic and prognostic tool in CRC. Early stage detection of CRC with high sensitivity and specificity would likely lead to higher participation in the screening test. It would also improve the prognosis of the disease and improve the recurrence risk. In this review, we summarize the potential biomarkers for early detection and monitoring of CRC. Nina Hauptman and Damjan Glavač Copyright © 2017 Nina Hauptman and Damjan Glavač. All rights reserved. Hereditary Colorectal Tumors: A Literature Review on MUTYH-Associated Polyposis Mon, 25 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/8693182/ MAP (MUTYH-associated polyposis) is a syndrome, described in 2002, which is associated with colorectal adenomas, with enhanced colorectal carcinogenesis. This review synthesizes the available literature on MAP and outlines its pathogenesis, association with colorectal tumorigenesis, screening, treatment, and the subtle differences between it and its close cousins—FAP and AFAP. The preponderance of data is collected using MAP guidelines. However, although AFAP and MAP appear similar, potentially important distinctions exist, warranting targeted diagnostic criteria and treatment approaches. We suggest that it may be prudent to screen for MAP earlier than in current clinical practice, as it has been shown that sequence variants are associated with more severe disease, presenting with an earlier onset of colorectal cancer. Finally, we issue a call-to-action for much-needed further data to establish clear clinical and diagnostic criteria. Micaella Kantor, Javier Sobrado, Sima Patel, Sara Eiseler, and Christopher Ochner Copyright © 2017 Micaella Kantor et al. All rights reserved. Colorectal Malignancy in a Prospective Irish Inflammatory Bowel Disease Population 15 Years Since Diagnosis: Comparison with the EC-IBD Cohort Sun, 24 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/4946068/ Background and Aim. As part of the EC-IBD prospective inception cohort study, we had unique opportunity to follow up our patients since diagnosis in the early 1990s. Patients and Methods. All patients from the greater Dublin area () were followed up from inception between 1991 and 1993 until the 30 September 2009. Patients who developed malignancies were logged electronically with verification of the site and histology. Results. Of the initial 192 patients, 133 were included in the 15-year follow-up. Of those, 80 (60.2%) had UC and 53 (39.8%) had CD. There were 82 (61.7%) males and 51 (38.3%) females. Six patients had extraintestinal malignancy; however, there was no CRC related to IBD noted in our cohort. Four of the 6 identified cases had UC (64%) with a mean age of 54.25 years at the time of cancer diagnosis, whereas the two CD patients had a mean age of 51.5 years at the time of cancer diagnosis. Conclusion. CRC was not observed in our cohort. The six extraintestinal malignancies did not show significant relation to IBD. The high total colectomy rate (in the prebiological therapy era) may have contributed to low malignancy rate. Mary Shuhaibar and Colm O’Morain Copyright © 2017 Mary Shuhaibar and Colm O’Morain. All rights reserved. Gastroprotective Value of Berries: Evidences from Methanolic Extracts of Morus nigra and Rubus niveus Fruits Wed, 20 Sep 2017 10:46:47 +0000 http://www.hindawi.com/journals/grp/2017/7089697/ This study evaluated the gastroprotective value of the methanol extracts from fruits of Morus nigra L. (black mulberry (MEMN)) and Rubus niveus Thunb (raspberry (MERN)). The total phenolic compounds and flavonoids were measured, as well as the in vitro 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenger activity. The gastroprotective effects of the extracts against 60% ethanol/0.3 M HCl were evaluated in mice. After that, the lipid hydroperoxides and reduced glutathione levels at ulcerated tissue were determined. The effects of extracts on H+/K+-ATPase activity were also verified. The extracts exhibited high contents of polyphenols; however, MERN presented 1.5-fold higher levels. The presence of flavonoids also was confirmed. In addition, MEMN (IC50 = 13.74 μg/mL) and MERN (IC50 = 14.97 μg/mL) scavenged DPPH radical. The MEMN reduced the ulcer area only at 300 mg/kg (p.o.) by 64.06%. Interestingly, MERN decreased the ulcer area in a superior potency (ED50 = 20.88 mg/kg), reducing the ulcer area by 81.86% at 300 mg/kg, and increased the gastric mucin levels. The antioxidant effects of extracts were evidenced by reduced lipoperoxides and increased reduction of glutathione amount in the gastric mucosa. However, MEMN or MERN did not change the H+/K+-ATPase activity. These results confirm that M. nigra and R. niveus are berries with a gastroprotective value by strengthening of gastric protective factors. Luciane Angela Nottar Nesello, Maria Luisa Maes Lima Beleza, Marihá Mariot, Luísa Nathália Bolda Mariano, Priscila de Souza, Adriana Campos, Valdir Cechinel-Filho, Sérgio Faloni Andrade, and Luísa Mota da Silva Copyright © 2017 Luciane Angela Nottar Nesello et al. All rights reserved. Ileostomy Prolapse in Children with Intestinal Dysmotility Mon, 18 Sep 2017 06:57:12 +0000 http://www.hindawi.com/journals/grp/2017/7182429/ Background. A relationship between intestinal motility and ileostomy prolapse has been suggested but not demonstrated objectively. Aims. This study evaluated the association between ileostomy prolapse and intestinal dysmotility in children. Methods. IRB-approved retrospective review of 163 patients with ileostomies (1998–2014) at a single institution. Patients were categorized as having clinical dysmotility as a primary diagnosis (), clinically suspected dysmotility based on underlying diagnosis (), or intestinal dysmotility unlikely () at the time of ileostomy present. Intestinal manometry was categorized as normal () or abnormal (). Primary outcome was pathologic stoma prolapse. Multivariate analysis using a logistic regression model and log-rank test to compare stoma prolapse rates over time between motility groups were used. Results. Clinical diagnosis of dysmotility () and manometric findings of dysmotility () were independently associated with stoma prolapse. Clinical dysmotility correlated with manometric findings (). Prolapse occurred in 42% of patients with dysmotility, 34% of patients with suspected dysmotility, and 24% of patients with normal motility. One-year prolapse-free stoma “survival” was 45% for dysmotility, 72% for suspected dysmotility, and 85% for intestinal dysmotility unlikely groups (). Conclusions. Children with intestinal dysmotility are at great risk for stoma prolapse. Intestinal manometry could help identify these patients preoperatively. Eric A. Sparks, Cristine S. Velazco, Brenna S. Fullerton, Jeremy G. Fisher, Faraz A. Khan, Amber M. Hall, Tom Jaksic, Leonel Rodriguez, and Biren P. Modi Copyright © 2017 Eric A. Sparks et al. All rights reserved. Baseline Renal Function Predicts Hyponatremia in Liver Cirrhosis Patients Treated with Terlipressin for Variceal Bleeding Sun, 17 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/7610374/ Objectives. Terlipressin is safely used for acute variceal bleeding. However, side effects, such as hyponatremia, although very rare, can occur. We investigated the development of hyponatremia in cirrhotic patients who had acute variceal bleeding treated with terlipressin and the identification of the risk factors associated with the development of hyponatremia. Design and Methods. This retrospective, case-control study investigated 88 cirrhotic patients who developed hyponatremia and 176 controls that did not develop hyponatremia and were matched in terms of age and gender during the same period following terlipressin administration. Results. The overall change in serum sodium concentration and the mean lowest serum sodium concentration were 3.44 ± 9.55 and 132.44 ± 8.78 mEq/L during treatment, respectively. Multivariate analysis revealed that baseline serum sodium was an independent positive predictor, and the presence of baseline serum creatinine, HBV, DM, creatinine, and shock on admission was independent negative predictors of hyponatremia (). Conclusion. The presence of HBV, DM, the baseline serum sodium, shock on admission, and especially baseline creatinine may be predictive of the development of hyponatremia after terlipressin treatment. Therefore, physicians conduct vigilant monitoring associated with severe hyponatremia when cirrhotic patients with preserved renal function are treated with terlipressin for variceal bleeding. Sung Eun Kim, Dong Min Jung, Ji Won Park, Yeonmi Ju, Bohyun Lee, Hyoung Su Kim, Ki Tae Suk, Myoung Kuk Jang, Sang Hoon Park, Jun Goo Kang, Jae Seung Soh, Hyun Lim, Ho Suk Kang, Sung Hoon Moon, ChulSik Kim, SeongJin Lee, Jong Hyeok Kim, Myung Seok Lee, Dong Joon Kim, Sung-Hee Ihm, and ChoongKee Park Copyright © 2017 Sung Eun Kim et al. All rights reserved. Serology of Viral Infections and Tuberculosis Screening in an IBD Population Referred to a Tertiary Centre of Southern Italy Sun, 17 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/4139656/ Background. With the introduction of more potent immunosuppressive agents in inflammatory bowel disease, prevention of opportunistic infections has become necessary by introducing screening programs. Prevalence of the most important infectious agents may vary in different geographical areas. The aim of our study was to assess the immune status for hepatitis B, varicella, mononucleosis, and cytomegalovirus infection together with the determination of the hepatitis C and tuberculosis status in Southern Italy. Methods. Prevalence of latent tuberculosis, together with serology of hepatitis B and C, Epstein-Barr virus, varicella zoster, and cytomegalovirus were collected by analysing retrospectively the clinical charts of IBD patients. Data were integrated with demographic and clinical features. Results. Data from 509 IBD patients divided in two age groups showed a prevalence of HBV infection in nonvaccinated patients of 9%. Seroprotection (HBsAb) in vaccinated IBD patients was lower () compared with that in controls. Prevalences of herpesvirus infections fluctuate between 51% (CMV) and 85% (EBV) and 84% (VZV) in younger patients. Latent tuberculosis and hepatitis C infection were found only in patients > 37 years of age. Conclusions. In younger patients, high susceptibility rates for primary herpesvirus infections should determine the choice of treatment. Loss of HBV seroprotection in already vaccinated patients should be considered for booster vaccination programs. Marco Ardesia, Giuseppe Costantino, Placido Mondello, Angela Alibrandi, and Walter Fries Copyright © 2017 Marco Ardesia et al. All rights reserved. Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy Thu, 14 Sep 2017 10:44:49 +0000 http://www.hindawi.com/journals/grp/2017/1509140/ Aims. To evaluate the impact of body mass index (BMI) on the surgical outcome of laparoscopic total mesorectal excision (laTME) for locally advanced rectal cancer (LARC, clinically staged as UICC stage II/III) after neoadjuvant chemoradiotherapy (nCRT). Methods. 312 LARC patients undergoing laTME after nCRT were divided into nonobese (BMI < 25.0 kg/m2, ) and obese (BMI ≥ 25.0 kg/m2, ) groups. Preoperative radiotherapy was delivered in 45–50.4 Gy/25f, 5 days/week, and concurrent chemotherapy using FOLFOX or CapeOX. Technical feasibility, postoperative and oncological outcome were compared between groups. Results. Obese patients had significantly longer operative time (). There was no significant difference regarding estimated blood loss, conversion, postoperative recovery, and morbidities. Multivariate analysis demonstrated that higher ASA score and abdominoperineal resection were risk factors for postoperative complications and diverting stoma was a protective factor. The length of resection margin, circumferential resection margin involvement, and number of lymph node retrieved were comparable. With a median follow-up time of 55 months (ranging 20–102 months), oncological outcome was comparable in terms of overall survival, local recurrence, and distant metastasis. Conclusions. Obesity does not affect surgical or oncological outcome of laTME after nCRT. LaTME may be feasible and safe to obese LARC patients after nCRT in a specialized center. Yanwu Sun and Pan Chi Copyright © 2017 Yanwu Sun and Pan Chi. All rights reserved. Efficacy of a Novel Narrow Knife with Water Jet Function for Colorectal Endoscopic Submucosal Dissection Sun, 10 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/5897369/ Backgrounds. With respect to the knife’s design in colorectal endoscopic submucosal dissection (ESD), diameter, water jet function, and electric power are important because these relate to efficient dissection. In this study, we analyzed a novel, narrow ball tip-typed ESD knife with water jet function (Flush knife BT-S, diameter: 2.2 mm, length: 2000 mm, Fujifilm Co., Tokyo, Japan) compared to a regular diameter knife (Flush knife BT, diameter: 2.6 mm, length: 1800 mm). Methods. In laboratory and clinical research, electric power, knife insertion time, vacuum/suction amount with knife in the endoscopic channel, and water jet function were analyzed. We used a knife 2.0 mm long for BT-S and BT knives. Results. The BT-S showed faster mean knife insertion time (sec) and better vacuum amount (ml/min) compared to the BT (insertion time: 16.7 versus 21.6, , vacuum amount: 38.0 versus 14.0, ). Additionally, the water jet function of the BT-S was not inferior. In 39 colorectal ESD cases in two institutions, there were mean 4.7 times (range: 1–28) of knife insertion. Suction under knife happened 59% (23/39) and suction of fluid could be done in 100%. Conclusions. Our study showed that the narrow knife allows significantly faster knife insertion, better vacuum function, and effective clinical results. Naohisa Yoshida, Takashi Toyonaga, Takaaki Murakami, Ryohei Hirose, Kiyoshi Ogiso, Yutaka Inada, Rafiz Abdul Rani, Yuji Naito, Mitsuo Kishimoto, Yoshiko Ohara, Takeshi Azuma, and Yoshito Itoh Copyright © 2017 Naohisa Yoshida et al. All rights reserved. EUS Morphology Is Reliable in Selecting Patients with Mucinous Pancreatic Cyst(s) Most Likely to Benefit from Surgical Resection Thu, 07 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/9863952/ Background and Study Aims. Endoscopic ultrasound (EUS) surveillance of patients with mucinous pancreatic cysts relies on the assessment of morphologic features suggestive of malignant transformation. These criteria were derived from the evaluation of surgical pathology in patients with pancreatic cysts who underwent surgery. Reliability of these criteria when evaluated by EUS in identifying lesions which require surgery has still not been established. Patients and Methods. This retrospective cohort study included seventy-eight patients who underwent surgical resection of pancreatic cysts based on EUS-FNA (fine-needle aspiration) findings suggestive of mucinous pancreatic cysts with concern for malignancy. Results. Final surgical pathology diagnoses of patients were the following: adenocarcinoma (19), intraductal papillary mucinous neoplasm (IPMN) (39), mucinous cystic neoplasm (MCN) (13), serous cystadenoma (2), pseudocyst (3), mucinous solid-cystic lesion of indeterminate type (1), and mesenteric cyst (1). Cysts with focal wall thickening ≥ 3 mm (), dilation of pancreatic duct (PD) (), and cyst size ≥ 3 cm () had significantly higher risk of adenocarcinoma. None of the patients without any of these morphologic features had cancer. Conclusions. In patients with mucinous pancreatic cyst(s), focal wall thickening, cyst size ≥ 3 cm, and PD dilation as assessed by EUS can help identify advanced mucinous cysts which require surgery and should routinely be evaluated during EUS surveillance. Siddharth Javia, Satish Munigala, Sushovan Guha, and Banke Agarwal Copyright © 2017 Siddharth Javia et al. All rights reserved. Comparison of Esophageal Function Tests in Chinese Patients with Functional Heartburn and Reflux Hypersensitivity Wed, 06 Sep 2017 02:51:30 +0000 http://www.hindawi.com/journals/grp/2017/3596148/ Objective. To investigate the differences in the results of esophageal function tests for functional heartburn (FH) and reflux hypersensitivity (RH). Methods. Patients with FH and RH and healthy volunteers (HVs) from the Department of Gastroenterology, Beijing Anzhen Hospital and Beijing Chao-Yang hospital, who underwent high-resolution manometry and impedance (HRIM), and 24-hour multichannel intraluminal impedance and pH recording (MII/pH) between 2014 and 2016, were enrolled in this study. Results. 36 HV, 147 FH patients, and 91 RH patients were enrolled. The postreflux swallow-induced peristaltic wave index (PSPW index) and mean nocturnal baseline impedance (MNBI) values were significantly lower in RH than in FH and HV. The ineffective esophageal motility (IEM), fragmented peristalsis rates, total bolus exposure, proximal total reflux events, and distal total reflux events were significantly greater in RH than in FH and HV. Conclusions. Compared to HV and FH patients, RH patients exhibited greater IEM and fragmented peristalsis rates, a greater total bolus exposure, more proximal total and distal total reflux events, and reduced chemical clearance and mucosal integrity. By using the above described parameters, HRIM and MII/pH assays could be used to correctly classify RH and FH and hence allow physicians to provide adequate relief from associated symptoms. Feng Gao, Yan Gao, Xue Chen, Jie Qian, and Jie Zhang Copyright © 2017 Feng Gao et al. All rights reserved. Comparative Study between Plastic and Metallic Stents for Biliary Decompression in Patients with Distal Biliary Obstruction Wed, 06 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/7621821/ This paper presents a retrospective comparison of plastic versus metallic stents in the drainage of malignant distal biliary obstructions. We compared single plastic stents (SPS), multiple plastic stents (MPS), and metallic stents (SEMS) regarding clinical decrease of TB < 2.0 mg/dL, long-term patency, and adverse event. 58 patients (38 women) with MDBO were included. Diagnoses were 44 pancreatic adenocarcinoma (74.6%), 9 metastasis (15.5%), 3 pancreatic neuroendocrine tumors (5.1%), and 2 adenocarcinoma in the major papilla (3.4%). The number of patients included in the SPS, MPS, and SEMS was 17, 6, and 35, respectively. Comparing the survival curves with respect to obstruction, we observed a lower mean permeability of the SPS compared to that of the MPS with and of the SEMS group (). There was no statistical difference between the use of MPS, despite the small number of patients compared to the use of SEMS () to reach the satisfactory levels of bilirubin. João Guilherme G. Cabral, Eloy Taglieri, Adriane Pelosof, Daniel Rosendo, and José Celso Ardengh Copyright © 2017 João Guilherme G. Cabral et al. All rights reserved. The Advances of Laparoscopic Gastrectomy for Gastric Cancer Tue, 05 Sep 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/9278469/ Laparoscopic gastrectomy is evolving. With the increasing expertise and experience of oncologic surgeons in the minimally invasive surgery for gastric cancer, the indication for laparoscopic gastrectomy is expanding to advanced cases. Many studies have demonstrated the benefits of minimally invasive surgery, including reduced risk of surgery-related injury, reduced blood loss, less pain, and earlier recovery. In order to establish concrete evidence for the suitability of minimal invasive surgery for gastric cancer, many multicenter RCTs, comparing the short- and long-term outcomes of laparoscopic versus open surgery, are in progress. Advances in laparoscopic gastrectomy are moving toward increasingly minimally invasive approaches that enable the improvement of the quality of life of patients, without compromising on oncologic safety. Yeon-Ju Huh and Joo-Ho Lee Copyright © 2017 Yeon-Ju Huh and Joo-Ho Lee. All rights reserved. Safety and Efficacy of Exclusive Enteral Nutrition for Percutaneously Undrainable Abdominal Abscesses in Crohn’s Disease Wed, 30 Aug 2017 04:02:29 +0000 http://www.hindawi.com/journals/grp/2017/6360319/ Background. The percutaneously undrainable abdominal abscesses in Crohn’s disease (CD) are not uncommon. The treatment protocol is still under debate. This study was conducted to assess the safety and efficacy of exclusive enteral nutrition (EEN) for percutaneously undrainable abscesses in CD. Methods. A consecutive cohort of 83 CD patients with percutaneously undrainable abdominal abscesses between January 2011 and June 2015 was retrospectively analyzed. They were divided into the EEN group and the non-EEN group. Results. The cumulative surgical rate was significantly lower in the EEN group than in the non-EEN group (). Fifteen percent patients treated with EEN avoided surgery. EEN () was associated with a decreased need for surgery. Previous abdominal surgery () and abscess diameter > 3 cm () were associated with an increased need for operation. EEN increased the albumin level, while decreased ESR and CRP significantly for patients requiring surgery. The risk of postoperative intra-abdominal septic complications () was significantly lower in the EEN group compared with the non-EEN group. Conclusions. EEN is feasible in CD patients presenting with percutaneously undrainable abdominal abscesses. It is associated with a reduction in surgical rate, optimized preoperative condition, and improved postoperative outcomes in these specific groups of patients. Yibin Zhu, Liang Xu, Wei Liu, Weilin Qi, Qian Cao, and Wei Zhou Copyright © 2017 Yibin Zhu et al. All rights reserved. Magnifying Endoscopy with Blue Laser Imaging Improves the Microstructure Visualization in Early Gastric Cancer: Comparison of Magnifying Endoscopy with Narrow-Band Imaging Wed, 30 Aug 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/8303046/ Backgrounds. Magnifying endoscopy with blue laser imaging (ME-BLI) for diagnosis of early gastric cancer (EGC) is as effective as magnifying endoscopy with narrow-band imaging (ME-NBI). However, there are different EGCs in microstructure visualization between ME-BLI and ME-NBI. This study aimed to clarify the pathological features of the EGCs, in which microstructure visualization was different between ME-NBI and ME-BLI. Methods. EGCs were classified into groups A (irregular microsurface pattern (MSP) in ME-BLI and absent MSP in ME-NBI), B (irregular MSP in two modalities), or C (absent MSP in two modalities), according to the vessel plus surface classification. We compared the pathological features of EGCs between the three groups. Results. 17, four, and five lesions could be evaluated in detail in groups A, B and C, respectively. Well-differentiated adenocarcinomas with shallow crypts were more frequent in group A than in group B (58.8 and 0%, resp.). The mean crypt depth of group A was significantly shallower than that of group B (56 ± 20, 265 ± 64 μm, resp., ). Conclusions. ME-BLI could better visualize the microstructures of the EGCs with shallow crypts compared with ME-NBI. Therefore, ME-BLI could enable a more accurate diagnosis of EGC with shallow crypts. Reiko Kimura-Tsuchiya, Osamu Dohi, Yasuko Fujita, Nobuaki Yagi, Atsushi Majima, Yusuke Horii, Tomoko Kitaichi, Yuriko Onozawa, Kentaro Suzuki, Akira Tomie, Tetsuya Okayama, Naohisa Yoshida, Kazuhiro Kamada, Kazuhiro Katada, Kazuhiko Uchiyama, Takeshi Ishikawa, Tomohisa Takagi, Osamu Handa, Hideyuki Konishi, Mitsuo Kishimoto, Yuji Naito, Akio Yanagisawa, and Yoshito Itoh Copyright © 2017 Reiko Kimura-Tsuchiya et al. All rights reserved. Efficacy and Predictors for Biofeedback Therapeutic Outcome in Patients with Dyssynergic Defecation Tue, 29 Aug 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/1019652/ Aim. To evaluate the short-term efficacy of biofeedback therapy (BFT) for dyssynergic defecation (DD) and to explore the predictors of the efficacy of BFT. Methods. Clinical symptoms, psychological state, and quality of life of patients before and after BFT were investigated. All patients underwent lifestyle survey and anorectal physiology tests before BFT. Improvement in symptom scores was considered proof of clinical efficacy of BFT. Thirty-eight factors that could influence the efficacy of BFT were studied. Univariate and multivariate analysis was conducted to identify the independent predictors. Results. Clinical symptoms, psychological state, and quality of life of DD patients improved significantly after BFT. Univariate analysis showed that efficacy of BFT was positively correlated to one of the 36-item Short-Form Health Survey terms, the physical role function (; ), and negatively correlated to the stool consistency (; ), the depression scores (; ), and the first rectal sensory threshold volume (; ). Multivariate analysis showed depression score (β = −0.271; ) and first rectal sensory threshold volume (β = −0.325; ) to be independent predictors of BFT efficacy. Conclusion. BFT improves the clinical symptoms of DD patients. Depression state and elevated first rectal sensory threshold volume were independent predictors of poor outcome with BFT. Ting Yu, Xiaoxue Shen, Miaomiao Li, Meifeng Wang, and Lin Lin Copyright © 2017 Ting Yu et al. All rights reserved. Are the Symptoms of an NSAID-Induced Ulcer Truly Milder Than Those of an Ordinary Ulcer? Sun, 27 Aug 2017 00:00:00 +0000 http://www.hindawi.com/journals/grp/2017/4653250/ Objective. The percentage of patients with nonsteroidal anti-inflammatory drugs (NSAIDs) and low-dose aspirin- (LDA-) induced ulcers who complain of gastrointestinal symptoms has generally been considered to be low. The aim of this study was to examine and compare the symptoms and quality of life (QOL) at peptic ulcer onset. Methods. This study involved 200 patients who were confirmed by endoscopy to be in the acute stage of gastroduodenal ulcer (A1-H1). Patients completed a self-administered questionnaire (Global Overall Symptom score and SF-8) at ulcer onset, and data were compared between NSAIDs/LDA ulcers and non-NSAIDs/LDA ulcers. Results. The upper gastrointestinal symptoms score was significantly lower for patients using LDA only (20.5 ± 9.4 in the nonusing group, 19.6 ± 8.6 in the NSAIDs-only group, 16.7 ± 11.6 in the LDA-only group, and 18.5 ± 7.2 in the NSAIDs/LDA group, ). The QOL score (physical summary) was significantly lower in the NSAID group (42.1 ± 9.9) than in the nonusing group (47.6 ± 7.6) (). Patients’ characteristics showed no significant differences among the groups, with the exception of age. Conclusion. The severity of upper abdominal symptoms at peptic ulcer onset was similar between NSAID users and nonusers. Toshihiko Tomita, Sumire Mori, Katsuyuki Tozawa, Eitatsu Arai, Nobuo Tano, Hideo Oka, Yongmin Kim, Takashi Abe, Yoshio Ohda, Tadayuki Oshima, Hirokazu Fukui, Jiro Watari, and Hiroto Miwa Copyright © 2017 Toshihiko Tomita et al. All rights reserved.