GI, Liver & Pancreas Pathology
Mohammad Reza Abbaszadegan; Negin Taghehchian; Azadeh Aarabi; Sohrab Nozari; Ehsan Saburi; Meysam Moghbeli
Abstract
Background & Objective: Gastric cancer (GC) is considered one of the main reasons for cancer-related mortalities among Iranians. Kindlin-1 is an adhesion protein member of integrin-interacting proteins, regulating integrin activation through direct interaction with β-integrin. Therefore, kindlin-1 ...
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Background & Objective: Gastric cancer (GC) is considered one of the main reasons for cancer-related mortalities among Iranians. Kindlin-1 is an adhesion protein member of integrin-interacting proteins, regulating integrin activation through direct interaction with β-integrin. Therefore, kindlin-1 can be involved in the regulation of cell proliferation and adhesion. In the present study, we assessed the possible role of kindlin-1 in GC progression and metastasis.Methods: KINDLIN1 messenger RNA (mRNA) expression was assessed in tumor tissues from 80 GC patients in comparison with normal tissues using real-time polymerase chain reaction (PCR).Results: The levels of KINDLIN1 expressions were significantly correlated with sex (P=0.05) and tumor location (P=0.002). KINDLIN1 expression was also significantly associated with lymph node metastasis among the helicobacter pylori (HP)-negative cases (P=0.001). Moreover, a significant association between age and KINDLIN1 expression was observed among the HP-positive cases (P=0.039).Conclusion: In the present study, we introduced KINDLIN1 as a location-specific marker for cardia gastric carcinoma. Moreover, it was observed that KINDLIN1 could be used as a sex-dependent diagnostic marker of GC patients.
Microbiology
Fahimeh Safarnezhad Tameshkel; Mohammad Hadi Karbalaie Niya; Zahedin Kheyri; Davood Azizi; Farzin Roozafzai; Samaneh Khorrami
Abstract
Background and Objectives: Iran, as a developing country, is experiencing high burdens of Helicobacter pylori (Hp)-associated non-communicable diseases. Hp stool antigen test (HpSA) is widely used as an inexpensive and feasible noninvasive method to diagnose Hp infection, instead of invasive approaches. ...
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Background and Objectives: Iran, as a developing country, is experiencing high burdens of Helicobacter pylori (Hp)-associated non-communicable diseases. Hp stool antigen test (HpSA) is widely used as an inexpensive and feasible noninvasive method to diagnose Hp infection, instead of invasive approaches. The current study aimed at evaluating the diagnostic and predictive values of HpSA test for Hp infection in Iranian patients with dyspepsia. Materials and methods: The current cross sectional study was performed on 100 patients with dyspepsia. Gastric mucosal specimens were taken, processed, and examined according to the standard protocols. Simultaneously, stool samples were obtained and sent to laboratory for further analyses. Hp stool antigen titers were assessed using enzyme-linked immunosorbent assay (ELISA) technique. Results:Stool antigen titers were not associated with gender (P-value=0.284), but correlated to age (r=0.213, P-value=0.034).Considering0.385 as a cutoff point, the HpSA test had 80.4% sensitivity and 85.7% specificity. Conclusion: Based on cost-effectiveness of HpSA test, the current study findings corroborated the use of HpSA test to detect and follow-up patients with Hp infection, as an alternative method to detect Hp rather than invasive procedures.
Mohammad Salehi; Abdolmajid Ghasemian; Seyyed Khalil Shokouhi Mostafavi; Somayyeh Najafi; Hassan Rajabi Vardanjani
Abstract
Backgrounds & Objective: The Helicobacter pylori prevalence has continuously decreased during recent years in Iran. The current study aimed at determining H. pylori prevalence in Neyshabur city, Northeast Iran, during 2010-2015. Methods: The current epidemiologic survey was conducted in Neyshabur ...
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Backgrounds & Objective: The Helicobacter pylori prevalence has continuously decreased during recent years in Iran. The current study aimed at determining H. pylori prevalence in Neyshabur city, Northeast Iran, during 2010-2015. Methods: The current epidemiologic survey was conducted in Neyshabur from 2010 to 2015 to determine the prevalence of H. pylori infection. A total of 11596 participants (3681 male with the mean age of 31.7±6.2 years and 7915 female with mean age of 68.3±4.7 years) were included. The enzyme-linked immunosorbent assay kits for the detection of H. pylori and Stat Fax 3200® Microplate Reader (USA) with a sensitivity of 95% and specificity of 98% were used. Titers above 12 units were considered positive for IgG, IgA, and IgM (negative <8, equivocal 8 to 12, and positive >12 U). The Chi-square t test and F test were used to analyze data. Results: The overall IgA, IgG, and IgM seropositive samples among the study participants were 852 (7.2%), 9000 (72.8%), and 1256 (5.2%), respectively. The IgA seropositivity was significantly high among the age group above 51 years, compared with the other age groups. Moreover, the IgG and IgM seropositivity were significantly high among the age groups 41 to 50 and 31 to 40 years respectively, compared with the other age groups. There was no significant difference between male and female cases regarding IgA and IgG seropositive samples, but IgM level was significantly higher among females, compared with that of the male cases. Furthermore, there was no significant alteration in IgA, IgG, and IgM seropositivity during 2010-2014 in Neyshabur. Conclusion: The prevalence of H. pylori in Neyshabur was high in the healthy population. Furthermore, the H. pylori prevalence did not change from 2010 to 2014 in the studied city. Effective approaches to improve health, educational, and socioeconomic status should be implemented to minimize and control H. pylori infection.
Betul PEKER CENGIZ; Fatma Secil KIRDOK; Hayrettin DIZEN
Volume 11, Issue 5 , October 2016, , Pages 452-455
Abstract
Russell body gastritis is a rare form of chronic gastritis. It is characterized by the invasion of lamina propria by plasma cells that included eosinophilic cytoplasmic inclusion. In the literature, most of the cases are associated with Helicobacter pylori. Russell body gastritis and Helicobacter pylori ...
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Russell body gastritis is a rare form of chronic gastritis. It is characterized by the invasion of lamina propria by plasma cells that included eosinophilic cytoplasmic inclusion. In the literature, most of the cases are associated with Helicobacter pylori. Russell body gastritis and Helicobacter pylori infection are generally seen together incidentally. We report here two cases of Russell body gastritis with Helicobacter pylori infection in a 51-yr-old woman and a 39-yr-old man from Eskisehir, Turkey.
Mohamad Hosein Aarabi; Shokofeh Alvani; Hassan Ehteram
Volume 5, Issue 4 , September 2010, , Pages 199-203
Abstract
Background and Objectives: Helicobacter pylori cause a chronic gastric infection, and may cause extra gastrointestinal disease. The association between H. pylori infection and serum lipid profiles is still controversial. The aim of this study was to investigate any possible relationship ...
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Background and Objectives: Helicobacter pylori cause a chronic gastric infection, and may cause extra gastrointestinal disease. The association between H. pylori infection and serum lipid profiles is still controversial. The aim of this study was to investigate any possible relationship between H. pylori infection and lipid levels.
Materials and Methods: The subjects were 400 volunteer referring to medical centers of Kashan, Iran between December 2005 and March 2006. Helicobacter pylori infection status was determined by assaying serum anti-H. pylori immunoglobulin G antibody. Total cholesterol, HDL-cholesterol, triglyceride concentrations were measured by routine enzymatic methods. The data for H. pylori-seropositive and –seronegative individuals were compared.
Results: Three hundred nineteen subjects (79.8 percent) were H. pylori-seropositive. The serum triglyceride concentration and total cholesterol/HDL-cholesterol ratio were significantly higher in H. pylori-seropositive than H. pylori–seronegative individuals (162.03 vs. 143.88 mg/dl, P<0.05 and 4.27 versus 3.91, P<0.05 respectively).
Conclusion: The findings confirm the existence of a moderate association between H. pylori infection and lipid modulation. It is also possible that H. pylori infection promotes atherosclerosis by acting through changes in lipid profile.
Nehzat Akiash; Younes Nozari; Naser EbrahimiDaryani; Alireza Abdollahi
Volume 4, Issue 1 , January 2009, , Pages 1-4
Abstract
Background and Objectives: Cardiovascular disease is the most common cause of death in developed countries. In addition to traditional risk factors for cardiovascular disease, nowadays, accumulating evidence indicates that a variety of infections contribute to pathogenesis of atherosclerosis, ...
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Background and Objectives: Cardiovascular disease is the most common cause of death in developed countries. In addition to traditional risk factors for cardiovascular disease, nowadays, accumulating evidence indicates that a variety of infections contribute to pathogenesis of atherosclerosis, (We investigated whether Helicobacter pylori infection is related to Prevalence of coronary heart disease) there is controversy concerning the impact of H. pylori infections in atherosclerosis. Materials and Methods: This case-control study was carried out on 130 subjects who underwent coronary angiography in the School of Medicine, Tehran University of Medical Sciences, Iran, from Oct 2006 to Oct 2007. According to angiography findings, the patients were grouped into cases (n=70) with Coronary Artery Disease (CAD), and normal control group (n=60). Then, using ELISA method, specific anti H. pylori IgGs were measured in all subjects. The connection between CAD and H. pylori infection was studied. Results: Among the 130 patients, anti-H. pylori IgGs were detected in 80% of cases and 65% of control subjects (p=0.05). The investigation shows that CAD correlated significantly with hypertension, diabetes, and smoking (p<0.05) although there was no associations between these traditional risk factors, and H. pylori infection. Conclusion: These findings raise the possibility that exposure to H. pylori may lead to an increased risk of coronary artery disease independent of other risk factors.
Alireza Abdollahi; Farid Azmoudeh Ardalan; Hossein Foroutan; Firouzeh Moradkarami
Volume 3, Issue 1 , January 2008, , Pages 35-39
Abstract
Background and Objective: Long period risk of gastric carcinoma in people affected with chronic Helicobacter pylori gastritis is 5 times more than normal people. Perhaps histological changes due to helicobacter pylori infection could be used for screening people at risk of gastric carcinoma and ...
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Background and Objective: Long period risk of gastric carcinoma in people affected with chronic Helicobacter pylori gastritis is 5 times more than normal people. Perhaps histological changes due to helicobacter pylori infection could be used for screening people at risk of gastric carcinoma and peptic ulcer. Materials and Methods: This study has been carried out as a cross-sectional process and we compared histological changes observed in Helicobacter pylori chronic gastritis in 30 patients with peptic ulcer and 30 patients without the ulcer and then classified them according to Sydney scoring system, and after collecting data, we analyzed them by SPSS software. Results: Sixty percent of patients with ulcer were male and forty percent were female. In addition, 56.7% of patients without ulcer were male and 43/3% were female without a statistically significant difference (p = 0.793). Mean age in ulcer group was 56.4 years and in non-ulcer group was 48.9 years that there was no significant statistical difference (p = 0.057). Chronic gastritis frequency increases within people in their sixth decade and after that. There was no significant difference for degree of infection with Helicobacter pylori (p = 0.346), metaplasia (p =0.885), chronicity (p = 0.796) and degree of activity (p = 0.249), atrophy (p = 0.781) in patients with or without ulcer. Conclusion: There was no significant difference in any of the variables of the study including degree of infection with Helicobacter pylori, chronicity, disease activity and intestinal metaplasia between both groups with and without peptic ulcer.
Mehdi Seilanian Toosi; Jalil Tavakkol Afshar; Mohamad Reza Ghavam Nassiri; Mona Malekzadeh Moghani; Houshang Rafatpanah; Azam Brook
Volume 2, Issue 2 , April 2007, , Pages 59-66
Abstract
Background and Objective: Host genetic factors such as cytokine gene polymorphisms as well as Helicobacter pylori (H. pylori) infection have been found to be associated with gastric cancer risk . Interleukin 1 is a pro-inflammatory cytokine involved in H. pylori-induced gastric inflammation. Therefore, ...
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Background and Objective: Host genetic factors such as cytokine gene polymorphisms as well as Helicobacter pylori (H. pylori) infection have been found to be associated with gastric cancer risk . Interleukin 1 is a pro-inflammatory cytokine involved in H. pylori-induced gastric inflammation. Therefore, we analyzed the association between IL-1β and IL-1-RN polymorphisms and gastric cancer in Persian residents in north-eastern Iran. Methods: In a case-control study, the genotyping was carried out by PCR-RFLP in 109 gastric cancer patients and 101 randomly-selected healthy controls. The polymorphic sites include promoter region of IL-1β at 511 (C-T transition) position and IL-RN VNTR H. pylori infection was determined by ELISA assay in patients. Results: No significant differences were observed in the allele and genotype frequency of IL-1β-511 and IL-1RN VNTR between patients and control. Genotype frequencies in healthy controls were not significantly different from gastric cancer cases in separate histological types (intestinal or diffuse). IL- 1β-511 CT genotype frequency was significantly higher among healthy subjects than H. pylori positive gastric cancer patients (41.6% vs. 20%, p = 0.01, OR 0.30, 95% CI: 0.11-0.76). Meanwhile, relatively higher frequency of IL-1β-511 T genotype was observed among H. pylori positive cases as compared to healthy controls (42.9% vs. 26.7%, p = 0.06, OR 2.16, 95% CI: 0.96-4.8) Conclusion: Our results suggest the association between IL-1β-511 polymorphism and H. pylori infection and their contribution to the risk of gastric cancer. While IL-1β-511 CT genotype has a protective effect against H. pylori associated gastric carcinoma, IL-1β-511 TT may increase the risk.
Mohammad Ebrahim Yarmohammadi; Horieh Saderi; S.Hadi Saghelaini; Jamshid Narenjkar J
Volume 1, Issue 1 , January 2006, , Pages 31-34
Abstract
Objective: To investigate the presence of Helicobacter pylori in sinonasal mucosa of patients with chronic sinusitis Design: A prospective case-control study Materials and methods: Mucosal specimens were collected from the mid-third middle meatus and lateral side of mid-cornea. H. pylori has been investigated ...
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Objective: To investigate the presence of Helicobacter pylori in sinonasal mucosa of patients with chronic sinusitis Design: A prospective case-control study Materials and methods: Mucosal specimens were collected from the mid-third middle meatus and lateral side of mid-cornea. H. pylori has been investigated using PCR after DNA extraction and urease test. Results: H. pylori was not found in any of the sample taken from both groups (case and control patients). Conclusion: This is the first reported study to investigate the presence of H. pylori in sinonasal mucosa in Iran. In this study, H. pylori was not determined in these sites, although its possible presence could not be excluded. Thus, further investigation on more patients and application of sensitive diagnostic techniques are recommended.
