Amir Houshang Mohammad Alizadeh
Gastroenterology and Liver Diseases Research Center, Research Institute for Gastro-enterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran, & Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
[ 1 ] - The frequency of bacterial contamination and diversity of drug resistance patterns in devices and staff of endoscopy and colonoscopy units
Background: This study aimed at analyzing microbial contamination in medical equipment, environment, and staff of a gastroenterology unit. Methods: Samples of gastrointestinal imaging devices, the environment, and staff were collected using standard swab-rinse technique and biochemical or molecular characteristics of the isolates, their susceptibility to antibiotics, and similarit...
[ 2 ] - Lack of Association between Interleukin 23R (IL-23R) rs10889677 Polymorphism and Inflammatory Bowel Disease Susceptibility In an Iranian Population
Background: Inflammatory bowel diseases (IBDs), which include ulcerative colitis (UC) and Crohn’s disease (CD), are inflammatory disorders that affect the gastrointestinal tract. A combination of inflammatory cytokines has an important role in IBD development. Genome-wide association studies have shown that polymorphisms in the interleukin-23R gene (IL-23R) increase susceptibility to IBD....
[ 3 ] - بررسی غلظت سرمی TNF-α در بیماران مبتلا به هپاتیت C مزمن و ارتباط آن با ایجاد فیبروز کبدی
Background: TNF gene polymorphisms may influence hepatitis C virus activity. In the present study we surveyed TNF-α concentration in chronic hepatitis C patients and its association with hepatic fibrosis. Materials and methods: We investigated the association between TNF-α level and inflammatory necrosis/fibrosis grading, meanwhile, TNF association was investigated with anthropometric indices...
[ 4 ] - اندکس‌های آهن سرم، رسوب کبدی آهن و فیبروز/نکروز التهابی کبدی در هپاتیت C مزمن
Background: We studied the effects of serum iron level, hepatic iron deposition and other metabolic disorders i.e., insulin resistance in hepatic fibrosis development. Materials and methods: Among 60 patients with chronic hepatitis C, we measured serum iron, ferritin and transferrin level. Meanwhile, hepatic biopsies were obtained from 43 patients for whom iron deposition, inflammatory necrosi...
[ 5 ] - فراوانی آنتی بادی ویروس هپاتیت A در مبتلایان هپاتیت B و C در ایران
Background: Superinfection of hepatitis A in chronic hepatitis B and C may worsen the course of disease. This study attempted to study frequency of hepatitis A virus antibodies in patients with hepatitis B and hepatitis C. Materials and methods: 115 hepatitis C and 56 hepatitis B patients who visited the Hepatitis Association of Hamedan province during 2004-2005 were enrolled. Hepatitis A viru...
[ 6 ] - فراوانی هپاتیتB ، هپاتیتC و ارتباط آنها با ایجاد مهار کننده فاکتور VIII در مبتلایان هموفیلی استان همدان- 1383
Abstract: Background: Hemophilia is a x-linked deficiency of factor VIII. The aim of the present study was to determine the frequencies of hepatitis B and C infections, markers of inflammation and liver function tests and also to assess the possible association between factor VIII inhibitor and hepatitis B and C infections in hemophiliacs of Hamedan Province of Iran. Materials and methods: Si...
[ 7 ] - ارتباط پلی مورفیسم T400K در ژن ABCG8 و احتمال ابتلا به سنگ کیسه صفرا
سابقه و هدف: تشکیل سنگ در کیسه صفرا یکی از شایع ترین اشکال بیماری کیسه صفرا می باشد. در صورت اشباع صفرا با کلسترول امکان رسوب آن و تشکیل سنگ افزایش پیدا می کند. تغییر در پروتئین ABCG8 که یکی از ناقلین اصلی کلسترول در کیسه صفرا می باشد می تواند منجر به افزایش کلسترول صفرا شود. یکی از تغییرات ژنتیکی که می تواند بر روی عملکرد این پروتئین مؤثر باشد پلی مورفیسم T400K می باشد. مواد و روش ها: این مطا...
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