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Helicobacter pylori and gastric cancer in the Middle East: A new enigma?

World Journal of Gastroenterology 2010年第26期16卷 3226-3234页

作者： nawfal r hussein Institute of Infection Immunity and Inflammation and the Centre for Biomolecular Sciences University of Nottingham Nottingham NG7 2RD United Kingdom

The Middle East is the home of ethnic groups from three main backgrounds: Semitic (Arabs and Jews), Indo-European (Persians and Kurdish) and Turkic (Turkish and Turkmens). Its geographic location, which has been under continuous influences from Asia, Europe and Africa, has made it an ideal site for epidemiological studies on Helicobacter pylori (H. pylori) infection and genotyping. The gastric cancer rate differs in this region from very high in Iran (26.1/105) to low in Israel (12.5/105) and very low in Egypt (3.4/105). Epidemiological studies showed that the prevalence of H. pylori is almost similar in those countries with a high level of infection in childhood. Importantly, the frequency of vacA s1 and m1 regions and cagA+ genotypes were higher in non Semitic populations who inhabit the North than Semitic populations, the inhabitants of Southern parts of the Middle East. H. pylori infection prevalence, distribution pattern of virulence factors, diet and smoking could not have explained the difference in cancer rate. This reflects the multifactorial aetiology of gastric cancer and suggests that H. pylori infection does not always directly correlate with the risk for gastrointestinal disease, such as gastric cancer. Further detailed investigations and international comparative studies of each risk factor needto be performed to investigate whether this represents a true enigma.

关键词： Helicobacter pylori Middle East Gastric cancer dupA cagA vacA iceA

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Impact of maternal HBsAg carrier status on pregnancy outcomes in Duhok city, Iraq

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Asian Pacific Journal of Tropical Biomedicine 2017年第11期7卷 1010-1013页

作者： Amira S. Khalil nawfal r. hussein Maida Y. Shamdeen Department of Gynecology and Obstetrics College of MedicineUniversity of DuhokDuhokKurdistan RegionIraq Department of Internal Medicine Azadi Teaching HospitalCollege of MedicineUniversity of DuhokDuhokKurdistan RegionIraq

Objective: To investigate the relationship between hepatitis B virus(HBV) positivity and pregnancy outcomes. Also, the association between HBV-related risk factors and HBV status was studied.Methods: A total of 100 HBV positive pregnant women were recruited and the pregnancy outcomes were compared with 301 HBV negative women. Blood samples were collected and tested for HBV by HBs Ag ELISA. Data were collected for recruited subjects using interview questionnaire.results: Data analysis showed that 51/100(51%) of the HBV-positive subjects gave a history of HBV in the family which was significantly higher than that of HBV-negative patients [41/301(13.6%) P = 0.001]. A significant association was found between positive history of surgery and HBs Ag positivity(P = 0.009). Then, pregnancy outcomes were stratified according to the HBV positivity. No significant association was found between HBV status and pregnancy outcomes(P > 0.05 for all).Conclusions: Positive family history of HBV and previous surgical procedures are associated with higher rate of HBV positivity. No association is found between HBV positivity and pregnancy outcomes.

关键词： HBV Pregnancy outcomes Abortion Preeclampsia Gestational diabetes Iraq

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The distribution of HCV in subjects attending hospitals in Duhok City, Iraq

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Asian Pacific Journal of Tropical Biomedicine 2017年第3期7卷 262-264页

作者： nawfal rasheed hussein Amer Abdullah Balatay Alpay Turan Sezgin rana Saadi Jawad Department of Internal Medicine College of MedicineUniversity of DuhokDuhokIraq Department of Pathology College of MedicineUniversity of DuhokDuhokIraq Department of Cardiology Acibadem InstitutesAdanaTurkey respiratory&Chest Diseases Center DuhokIraq

Objective: To investigate the prevalence of hepatitis C virus(HCV) and its genotypes in Duhok City, Kurdistan region, Iraq.Methods: A cross sectional study was conducted to investigate the prevalence of HCV and its genotype. A total of 2 109 subjects, who attended the hospital for complaints other than hepatitis, were recruited in this study.results: First, anti-HCV antibody positivity was examined by ELISA. About 5.2%(111/2 109) of our samples were tested positive for anti-HCV antibodies. To confirm the positivity, rT-PCr was performed. Amongst all samples, 2.8%(60/2 109) was positive by rT-PCr. Then, we genotyped all the rT-PCr positive samples, and it was found that50.0%(30/60) of our samples were typed as HCV genotype 4, 43.3%(26/60) as genotype1 and 6.7%(4/60) as genotype 3.Conclusions: The prevalence of HCV was higher than that was reported previously and genotype 4 was the most prevalent. Further population based study is required to investigate the prevalence of HCV.

关键词： HCV Genotype Iraq Duhok

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