MIDDLE EAST JOURNAL OF DIGESTIVE DISEASES (MEJDD)
Year:2016 | Volume:8 | Issue:2|Papers Count:11

There are overwhelming reports and descriptions about celiac associated disorders. Although there is a clear genetic association between celiac disease (CD) and some gastrointestinal disorders, there are controversial reports claiming an association between CD andHelicobacter pylori (H. pylori) infection.Different studies indicated the possible association between lymphocytic gastritis and both CD andH. pylori infection, although this evidence is not consistently accepted. Also it was shown that an increase in intraepithelial lymphocytes count is associated with bothH. pylori infection and celiac disease.Therefore the following questions may raise: how far is this infection actually related to CD?, which are the underlying patho-mechanisms for these associations? what are the clinical implications? what is the management.and what would be the role of gluten free diet in treating these conditions.PubMed (PubMed Central), Ovid, ISI of web knowledge, and Google scholar were searched for full text articles published between 1985 and 2015. The associated keywords were used, and papers described particularly the impact of pathological and clinical correlation between CD andH. pylori infection were identified. In this review we tried to answer the above questions and discussed some of the recent developments in the pathological and clinical aspects of CD andH. pylori infection.

BACKGROUND: According to recent studies comparing magnetic resonance enterography (MRE) with ileocolonoscopy for assessing inflammation of small bowel and colonic segments in adults with active Crohn’s disease (CD), we aimed to compare the accuracy of these two diagnostic methods in Iranian population.METHODS: During 2013-2014 a follow-up study was done on 30 patients with active CD in a gastroenterology clinic affiliated to Tehran University of Medical Sciences.MRE and ileocolonoscopy were performed for all the patients. All statistical analyses were performed using SPSS (version 18) andp -value<0.05 was considered as statistically significant.RESULTS: Of the 30 patients with active CD, 11 (36.7%) were men and 19 (63.3%) were women with mean age of 37.30±13.66 years (range: 19-67 years). MRE had sensitivity and specificity of 50% and 90% with positive predictive value (PPV) and negative predictive value (NPV) of 71.43 and 78.26, respectively for localizing sigmoid lesions and ileum had sensitivity and specificity of 84.21 and 45.45 with PPV and NPV of 72.73 and 62.50, respectively.CONCLUSION: While moderate sensitivity and high specificity of MRE in localizing colonic lesions makes it an appropriate confirmatory test after colonoscopy, the reported high sensitivity and moderate specificity of MRE versus colonoscopy in detecting ileal lesions makes it a suitable screening test for ileal lesions.Finally we can conclude that MRE can be an important complementary test to colonoscopy in detecting active disease.

BACKGROUND: Information regarding solid pseudopapillary neoplasm (SPN) of the pancreas is limited in Iran. We aimed to review the clinicocytopathological features and follow-up of patients with SPN of pancreas who were diagnosed in a single center in Iran.METHODS Seven patients with SPN of the pancreas were diagnosed during January 2010 to March 2015 at the Digestive Disease Research Institute of Tehran University of Medical Sciences. The patients were reviewed prospectively.RESULTS: Six out of the 7 patients were female and the mean age of all the patients was 29.4 years ranging from 15 to 61 years. The most common clinical presentation was nonspecific abdominal pain (N=6). The tumors were located mostly in head and neck of the pancreas. SPN was diagnosed in all patients by fine needle aspiration through endosonography (EUS-FNA). All patients underwent surgery. Histological findings of surgical tissues were consistent with EUS-FNA. The postoperative follow-up period of about 14 months was uneventful.CONCLUSION: SPN of the pancreas is a rare pancreatic tumor which affects primarily young women. EUS-guided FNA could play an important role in preoperative diagnosis of SPN of the pancreas.

BACKGROUND: There is no convenient cheap pragmatic experimental model for Nonalcoholic Fatty Liver Disease (NAFLD) /Nonalcoholic Steatohepatitis (NASH). Objective: Our objective was to create a pragmatic model of NAFLD/NASH.METHODS: Sprague-Dawley rats were fed a high-fat, high sugar homemade diet ad libitum for seven weeks. The high-fat, high sugar diet included 59% of energy derived from fat, 30% from carbohydrates, and 11% from protein. Serum levels of fasting glucose, triglyceride, cholesterol, liver enzymes, insulin, and hepatic tumor necrosis factor-alpha (TNF-a) gene expression were determined. Hepatic histology was examined by H & E stain.RESULTS: Rats fed the high-fat, high sugar diet developed hepatic steatosis, and a moderate inflammation, which was associated with increased serum levels of liver enzymes, glucose, insulin, triglyceride, cholesterol, and hepatic TNF-a gene expression.CONCLUSION: This rat model resembles the key features of human NAFLD/NASH and provides a simple pragmatic experimental model for elucidating the disease prevention and treatment.

BACKGROUND: This study is the first study to evaluate the nonadherence rate and reasons of same patient with inflammatory bowel disease (IBD) in Iran.METHODS During 9 months, 500 patients with IBD were enrolled in the study. Patients were interviewed about their nonadherence behaviors. Factor analysis was used to analyze the collected answers.RESULTS: The overall rate of nonadherence was 33.3% (27.6% intentional nonadherence and 5.7% unintentional nonadherence).33.6% of the patients had at least one relapse after discontinuing treatment. The most frequent reason for intentional nonadherence was discontinuing the treatment after recovering from symptoms (42.7%). The most frequent reason for unintentional nonadherence was forgetfulness (5.2%).19.8% of the patients did not visit their gastroenterologist on time and they purchased drugs from the drugstore. These patients reported that their clinics were too far and difficult to access. There was no significant relationship between nonadherence and demographic variables.CONCLUSION: Multiple reasons are suggested as factors of medication nonadherence and they seem to be different among different populations. Determining these possible reasons, could lead to finding suitable strategies to overcome or reduce them.

BACKGROUND: Oxidative stress has a major pathogenic role for liver damage following chronic hepatitis B. Glutathione peroxidase (Gpx) is necessary in oxidative state mechanism that is generally down-regulated by Hepatitis B virus (HBV) infection. On the other hand, disorders of iron homeostasis have been found out in HBV infected patients. Therefore, the objective of this study was to assess the interplay of Gpx and serum iron on clinical and virological features of patients with chronic HBV infection.METHODS One hundred and fifty adult, treatment-naïve, patients with chronic hepatitis B were randomly designated from an ongoing cohort of patients with HBV.Plasma Gpx1 concentration and HBV DNA quantity were measured. Liver stiffness was measured by transient elastography.RESULTS: Serum iron had a positive association with HBV DNA count in the total population.Serum iron was not associated with liver stiffness. However, HBV DNA was significantly associated with liver stiffness only in male patients. Serum Gpx was inversely associated with liver stiffness. Serum iron and Gpx had indirect effects on liver stiffness via HBV DNA count. We observed dissimilar effects of serum iron on HBV DNA and Gpx on liver stiffness in male and female patients.CONCLUSION: We identified interplay of serum iron and Gpx1 in relation to level of liver fibrosis in patients with chronic hepatitis B. Our results propose that oxidative stress and serum iron are differentially implicated in the progression of chronic hepatitis B in male and female patients.

BACKGROUND: Some evidence, not in large study populations, suggests that nonalcoholic fatty liver disease (NAFLD) and metabolic syndrome (MetS) share common interactions. We aimed to determine the prevalence of NAFLD and MetS in a large population registered to Kavar Cohort Study center. We also assessed the role of each component of MetS in NAFLD existence.METHODS Data were obtained from 3415 volunteers who called and refereed to our center.Complete anthropometric and laboratory measurement and abdominal ultrasonography was done for these individuals to screen NAFLD and its grade. A questionnaire was also used to obtain information on demographical and medical history and alcohol consumption. MetS was defined in all participants based on the National Cholesterol Education Program Adult Treatment Panel III (2001) (NCEP/ATP-III) and criteria for clinical diagnosis of metabolic syndrome in Iranian adults (CCDMIA).RESULTS: Among the refereed individuals, 2980 peoples were aged ≥18 years with male to women ratio of 1: 2.45. NAFLD was diagnosed by ultrasound in 32.9% and 27.4% of men and women, respectively. MetS was detected in 65.9 and 64.6 of the patients with NAFLD (based on NCEP/ATP-III) and in 30.1% and 73.7% (based on CCDMIA) of men and women, respectively. There were no significant differences between two gender in none of the components (p>0.05). Although, OR for hyperglycemia and abdominal obesity were approximately high in CCDMIA criteria (0.9613 and 1.2082, respectively), the differences were not statistically significant.CONCLUSION: NAFLD was associated with MetS. However, it was not possible to determine whether NAFLD predating the development of MetS.

Gastric inflammatory myofibroblastic tumor (IMT) is a rare tumor with and unpredictable prognosis usually find in young adults. We present an 18-yearold man with gastric IMT. He complained of epigastric pain, intermittent fever and night sweating associated with weight loss since two years ago. Physical examination showed anemic and cachestic features with mild abdominal tenderness in palpitation as well as an abdominal mass in epigastrium. Abdominal CT scan revealed a huge mass that was arising from the stomach. Upper endoscopy revealed a submucosal lesion in fundus of stomach of approximately 8cm. Endoscopic ultrasound showed a large sub-mucosal non homogenous fundal mass with areas of calcification. The patient underwent laparoscopic partial gastrectomy. Histopathologyand immunohistochemistryevaluation revealed an IMT.

Juvenile hemochromatosis is a rare autosomal recessive disorder that typically occurs in the first to third decades of life. Its symptoms are more acute and severe than classic hemochromatosis. We describe a 27-year-old man who was referred to the gastrointestinal clinic with a probable diagnosis of fatty liver and was finally diagnosed as having juvenile hemochromatosis. A review of the scientific literature reveals that recently only three siblings suffering from the disease have been reported in Iran.

In the recent issue of Middle East Journal of Digestive Diseases, we read with great interest the article by Bahari et al. 1, “Significance of response to hepatitits B vaccine in subjects with isolated antibody to hepatitis B core antigen”.We wanted to specify some important matters related to the article.Initially, definition of occult hepatitis B virus infection is the existence of hepatitis B virus (HBV) deoxyribonucleic acid (DNA) in the liver of individuals negative for hepatitis B surface antigen (HBsAg) by currently available assays.2Serum HBV DNA titres may be detectable (usually very low, <200 IU/ml) or undetectable, and may show fluctuation in occult hepatitis B virus infection patients. Also, occult hepatitis B virus infection may occur not only seropositive for antibodies to hepatitis B core antigen (anti-HBc) and/or antibodies to HBsAg (anti-HBs), but also seronegative.

A 55-year-old man presented with pain in the left flank for the last 8 months with history of significant weight loss. The pain was relieved on assuming a knee-chest position. On clinical examination the patient was afebrile with mild tenderness in the left hypochondrium. There was no icterus or lymphadenopathy.The spleen was palpable 6 cm below the costal margin and was firm and non-tender. There was no hepatomegaly and thorough clinical examination failed to reveal any lymphadenopathy.