Gastroenterology and Hepatology From Bed to Bench

AIM: This study aims to investigate the anticancer molecular mechanism of RT2 through protein-protein interaction (PPI) network analysis. For this aim, a bioinformatics evaluation of the proteome profile of colon cancer is carried out. BACKGROUND: Antimicrobial peptides such as RT2 showed anticancer properties against various tumors. The molecular mechanism of the anticancer effect of RT2 is a challenging subject. METHODS: By applying Cytoscape V...

AIM: Because gastric ulcer is a psychosomatic disease involving many psychological factors like assertiveness and cognitive beliefs, this study aimed to investigate the effectiveness of emotion regulation training on pain intensity and quality of life in patients with peptic ulcer disease. BACKGROUND: Gastric ulcer, a recurrent and common disease worldwide, is associated with gastrointestinal symptoms and lower health-related quality of life. Psychological factors and stress have been recognized as important contributors to the onset and duration of gastric ulcer, highlighting the need for effective psychological interventions to improve pain intensity and quality of life in patients...

Subepithelial lesions, formerly known as subepithelial tumors, are incidentally discovered protrusions throughout the gastrointestinal tract with normal overlying mucosa. Studies related to the diagnosis and therapy methods are limited due to the low incidence and malignant potential of these lesions. They commonly originating from the second, third, and fourth layers (muscularis mucosa, submucosa, and muscularis propria) of the gastrointestinal wall. They are reported to be more prevalent in the stomach and esophagus than small intestine and colon...

AIM: Due to weak diagnosis and treatment of pancreatic ductal adenocarcinoma (PDAC), detection of PDAC possible biomarkers in early stage is the main aim of this study. BACKGROUND: PDAC is known as an exocrine cancer with a 5-year overall survival of 11%. METHODS: Gene expression profiles of early stage of PDAC tissue and normal tissue are downloaded from gene expression omnibus (GEO) and evaluated via GEO2R. The significant differentially expressed genes (DEGs) are investigated via protein-protein interaction (PPI) network analysis and gene ontology...

AIM: To evaluate the effects of N-acetylcysteine (NAC) supplementation in cirrhotic patients. BACKGROUND: Chronic hepatic inflammation leads to fibrosis and cirrhosis through various mechanisms such as oxidative stress. NAC is one of the intracellular precursors of glutathione that can degrade most reactive oxygen species. Recently, the beneficial effects of NAC in animal and human studies on preventing liver injury progression and improving liver function have been examined...

AIM: This study aims to correct undercounts in cancer data before initiating a population-based cancer registry program, employing an innovative Bayesian methodology. BACKGROUND: Underestimation is a widespread issue in cancer registries within developing countries. METHODS: This secondary study utilized cancer registry data. We employed the Bayesian approach to correct undercounting in cancer data from 2005 to 2010, using the ratio of pathology to population-based data in the Golestan province as the initial value...

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AIM: In this study, we aim to propose consensus-based interpretations to enhance both automatic, and manual analysis and then present our recommendations about reflux-related variables to enhance Multichannel Intraluminal (MII) measurements. BACKGROUND: Multichannel Intraluminal Impedance-pH (MII-pH) monitoring is the most sensible option to evaluate Gastroesophageal Reflux Disease (GERD), specifically for the patients with normal endoscopy findings, and persistent symptoms without response to Proton Pomp Inhibitor therapy...

Maintaining a healthy balance between commensal, and pathogenic bacteria within the gut microbiota is crucial for ensuring the overall health, and well-being of the host. In fact, by affecting innate, and adaptive immune responses, the gut microbiome plays a key role in maintaining intestinal homeostasis and barrier integrity. Dysbiosis is the loss of beneficial microorganisms and the growth of potentially hazardous microorganisms in a microbial community, which has been linked to numerous diseases. As the primary inducer of circadian rhythm, light can influence the human intestinal microbiome...

Atypical/complement-mediated hemolytic uremic syndrome (A-HUS/CM-HUS) is a hereditary or sporadic disease with thrombotic microangiopathy (TMA). Diarrhea is a trigger that can cause attacks of CM-HUS. Although there are opinions that complement system activation plays a role in intestinal inflammation in patients with inflammatory bowel disease, the association of TMA with inflammatory bowel disease (IBD) has rarely been reported. In our case, a CM-HUS case that developed without an additional triggering factor in the course of ulcerative colitis (UC) was successfully treated with eculizumab, and then UC remission was also achieved...

AIM: This review sought to evaluate the significance of a functional assessment for liver transplant candidates, i.e., frailty, in the pre-transplant setting and its association with mortality and morbidities. BACKGROUND: Liver transplantation (LT) remains the treatment of choice for patients with end-stage liver disease. Due to the shortage of organs for LT, a careful selection of suitable recipients is essential. Frailty, a measure of physiologic reserve and increased vulnerability to stressors, was initially used in geriatrics and then introduced to the field of transplantation for better patient selection...

Hereditary hemochromatosis (HH) is an autosomal recessive metabolic disorder. Mutations in different encoding genes, mostly HFE, lead to iron overload in different organs of the body. We herein report a case of HH caused by a novel variant in the HFE2 (HJV) gene. A 27-year-old man was admitted to the internal medicine ward of Shahid Rahimi Hospital in Khorramabad, Iran, on 6/6/2018. He first sought medical care for impotence and was diagnosed with increased serum iron. He ceased follow-up and was referred to our center with advanced symptoms of hemochromatosis, including central hypogonadism, heart failure, and ascites...

AIM: This study aimed to examine the environmental factors associated in Iranian patients with inflammatory bowel disease (IBD). BACKGROUND: The role of environmental factors in the development of IBD remains uncertain. METHODS: In this case-control study, the patients with IBD referred to the Taleghani Hospital, Tehran, Iran, were recruited from 2017 to 2019. Controls were matched by sex. Data were collected using the designed questionnaire and also valid questionnaire such Pittsburgh Sleep Quality Index (PSQI) and Hospital Anxiety and Depression Scale (HADS) for sleep quality and anxiety/depression, respectively...

Gastric hemangioma (GH) is a rare benign tumor that may cause to upper gastrointestinal bleeding. Furthermore, this condition could lead life-threatening conditions thus should be recognized sooner to minimize unnecessary invasive surgical intervention, and accident. We reported a 48 years old man which came to emergency room (ER) with the chief complaint of hematemesis and black stool accompanied by abdominal pain, cold sweat, body weakness and enlarger stomach. Physical examination showed slightly icteric eye, and conjunctival pallor...

Based on the analysis of patients with Peutz-Jeghers syndrome (PJS), Serine threonine kinase11 (STK11) is known as a tumor suppressor gene, which is involved in cell polarization, regulation of apoptosis, and DNA damage response. In this case report study, we examined STK11 gene sequencing in a 42-year-old woman with mucocuta neous pigmentation and positive family history. Endoscopy and colonoscopy showed >1000 polyps throughout the stomach/colon (PJ-type hamartomas). The larger polyp in the stomach was resected and the small bowel imaging detected multiple jejunum/ileum small polyps...

AIM: This study aimed to estimate the survival rates among Iranian gastric cancer patients and to evaluate if the survival has improved during the last three decades. BACKGROUND: Gastric cancer is one of the most common cancers in Iran with high mortality. METHODS: A systematic review and meta-analysis of all published studies addressing gastric cancer survival in Iran was performed. International databases of Scopus, Web of Science, PubMed, and Iranian databases were included in the study...

AIM: This study aimed to determine the effects of acupressure on the intestinal function of patients undergoing Coronary Artery Bypass Graft (CABG) surgery. BACKGROUND: Studies indicated that cardiovascular patients are prone to constipation. Acupressure is one of the therapeutic and palliative approaches that can be used by doctors, nurses, and even patients themselves. METHODS: The present three-group randomized clinical trial study was conducted on 90 patients undergoing CABG surgery...

Acute pancreatitis, a potentially fatal disease, with symptoms including nausea and/or vomiting, indigestion, and abdominal pain, is known to range from a mild self-limiting state up to a more severe and lethal form. This review aims to provide a clearer picture to improve understanding the role of viral agents in the development of acute pancreatitis. Common databases including PubMed, Google Scholar, and Scopus were used for the literature search. In this review search terms including virus, viral, infection, and specific descriptive terms for a virus were considered in different combinations...

Primary Sclerosing Cholangitis (PSC) is a chronic cholestatic liver disease which is associated with Inflammatory Bowel Disease (IBD) in 70% of cases. It seems PSC/IBD is a distinct phenotype that is different from PSC, and IBD alone. Hence, we review the epidemiology, pathogenesis, natural course and management of PSC/IBD before and after LT for PSC. Extensive colitis, rectal sparing, backwash ileitis, and mild symptoms are the characteristics of IBD coexisting with PSC. Moreover, PSC patients with concurrent IBD have higher risk of cholangiocarcinoma, and colorectal neoplasia predominantly in right colon and at younger age...

AIM: This study aimed to find lncRNAs and mRNAs that were expressed differently by combining microarray datasets from different studies. This was done to find important target genes in gastric cancer for anti-cancer therapy. BACKGROUND: Gastric cancer (GC) is the fourth most frequent and second-most deadly malignancy worldwide. Thus, genetic diagnosis and treatment should focus on genetic and epigenetic variables. Based on several studies, disordered expression of non-coding RNAs (ncRNAs), such as lncRNAs, regulate gastric cancer invasion and metastasis...