Research Topics
Species | George N IoannouSummaryAffiliation: University of Washington Country: USA Publications
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Detail Information
Publications
Iron in hepatitis C: villain or innocent bystander?George N Ioannou
Health Services Research and Development, Veterans Affairs Puget Sound Health Care System, University of Washington, Seattle, USA
Semin Gastrointest Dis 13:95-108. 2002..Future studies should focus on the efficacy of combining iron depletion with pegylated interferon and ribavirin and on the effect of long-term iron depletion on histologic progression of chronic hepatitis C infection...
Development and validation of a model predicting graft survival after liver transplantationGeorge N Ioannou
Division of Gastroenterology, Department of Medicine, Hepatitis C Resource Center, Health Services Research and Development, Seattle, WA, USA
Liver Transpl 12:1594-606. 2006..The models may be used to inform liver transplant candidates and their doctors what posttransplant survival would be expected when a given donor is offered and may be particularly helpful for marginal or high-risk donors...
Incidence and predictors of hepatocellular carcinoma in patients with cirrhosisGeorge N Ioannou
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System, University of Washington, Seattle, Washington 98108, USA
Clin Gastroenterol Hepatol 5:938-45, 945.e1-4. 2007..Independent predictors of hepatocellular carcinoma in patients with cirrhosis are not well established...
Prevalence and trends of insulin resistance, impaired fasting glucose, and diabetesGeorge N Ioannou
Research Enhancement Award Program, Department of Medicine, Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle, WA 98108, USA
J Diabetes Complications 21:363-70. 2007..Our aim was to measure the prevalence and time trends of diabetes, impaired fasting glucose, and insulin resistance in the United States during the periods 1988-1994 and 1999-2002...
Serum bilirubin and colorectal cancer risk: a population-based cohort studyG N Ioannou
Northwest Hepatitis C Resource Center, Veternas Affairs Puget Sound Health Care System, Gastroenterology, Seattle, WA 98108, USA
Aliment Pharmacol Ther 23:1637-42. 2006..Bilirubin has antioxidant properties and has been postulated to protect against the development of malignancies...
Elevated serum alanine aminotransferase activity and calculated risk of coronary heart disease in the United StatesGeorge N Ioannou
Research Enhancement Award Program, Department of Medicine, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
Hepatology 43:1145-51. 2006..This association is more prominent in women...
Liver transplantation for hepatocellular carcinoma: impact of the MELD allocation system and predictors of survivalGeorge N Ioannou
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
Gastroenterology 134:1342-51. 2008..We aimed to determine the impact of this system on liver transplantation for HCC...
Contribution of metabolic factors to alanine aminotransferase activity in persons with other causes of liver diseaseGeorge N Ioannou
Gastroenterology, Metabolism, Endocrinology and Nutrition, Department of Medicine, Veterans Affairs Puget Sound Health Care System, Seattle, Washington USA
Gastroenterology 128:627-35. 2005....
Is Helicobacter pylori seropositivity related to body mass index in the United States?G N Ioannou
Primary and Specialty Medical Care Service, VA Puget Sound Health Care System, Seattle, WA, USA
Aliment Pharmacol Ther 21:765-72. 2005..Helicobacter pylori infection may decrease serum ghrelin and increase gastric leptin levels, which may, in turn, decrease body mass index...
Is central obesity associated with cirrhosis-related death or hospitalization? A population-based, cohort studyGeorge N Ioannou
Health Services Research and Development and Northwest Hepatitis C Resource Centers, Veterans Affairs Puget Sound System, Seattle, Washington, USA
Clin Gastroenterol Hepatol 3:67-74. 2005..We aimed to determine the interaction between body fat distribution (central versus peripheral) and increased body mass index (BMI) with regards to the risk of cirrhosis-related death or hospitalization...
The effect of alcohol consumption on the prevalence of iron overload, iron deficiency, and iron deficiency anemiaGeorge N Ioannou
Department of Medicine and Division of Gastroenterology, University of Washington Medical Center, and VA Medical Center, 1660 S Columbian Way, Seattle, WA 98108, USA
Gastroenterology 126:1293-301. 2004..Our aim was to investigate the relationship between alcohol consumption and iron overload, iron deficiency, or iron deficiency anemia in the U.S. population...
Association between dietary nutrient composition and the incidence of cirrhosis or liver cancer in the United States populationGeorge N Ioannou
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA fax
Hepatology 50:175-84. 2009..007), whereas serum cholesterol level was not associated with risk of cirrhosis or liver cancer. Conclusion: Diet may be an important and potentially modifiable determinant of liver disease...
Iron deficiency and gastrointestinal malignancy: a population-based cohort studyGeorge N Ioannou
Department of Medicine and Division of Gastroenterology, University of Washington Medical Center, Seattle, Washington 98108, USA
Am J Med 113:276-80. 2002..We investigated whether iron deficiency, with or without anemia, is associated with an increased likelihood of gastrointestinal malignancy...
Hepatitis B virus in the United States: infection, exposure, and immunity rates in a nationally representative surveyGeorge N Ioannou
Veterans Affairs Puget Sound Health Care System, University of Washington, Seattle, USA
Ann Intern Med 154:319-28. 2011..Up-to-date estimates of the prevalence of hepatitis B virus (HBV) infection, exposure, and immunity are necessary to assess the effectiveness of ongoing programs aimed at preventing HBV transmission...
Is obesity a risk factor for cirrhosis-related death or hospitalization? A population-based cohort studyGeorge N Ioannou
Veterans Affairs Medical Center, Health Services Research and Development, MS 152, Building 1, Room 422, 1660 South Columbian Way, Seattle, Washington 98108, USA
Gastroenterology 125:1053-9. 2003..Our aim was to determine whether increased body mass index (BMI) in the general population is associated with cirrhosis-related death or hospitalization...
Cholelithiasis, cholecystectomy, and liver diseaseGeorge N Ioannou
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle, Washington 98108, USA
Am J Gastroenterol 105:1364-73. 2010..We sought to determine whether persons with cholelithiasis or a history of cholecystectomy were more likely to have elevated serum liver enzymes or to develop cirrhosis...
Racial differences in the relationship between hepatitis C infection and iron storesGeorge N Ioannou
Department of Medicine and Division of Gastroenterology, University of Washington, Seattle, WA 98195, USA
Hepatology 37:795-801. 2003..This finding may partly explain the reduced response of HCV-positive African-Americans to antiviral treatment...
Predictors of endoscopic and laboratory evaluation of iron deficiency anemia in hospitalized patientsGeorge N Ioannou
Department of Medicine and Division of Gastroenterology, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
South Med J 100:976-84. 2007..Many hospitalized anemic patients do not undergo appropriate evaluation. We hypothesized that specific clinical variables were likely to be important in triggering evaluation for iron deficiency anemia...
The prevalence and predictors of elevated serum aminotransferase activity in the United States in 1999-2002George N Ioannou
Research Enhancement Award Program, Department of Medicine, Veterans Affairs Puget Sound Health Care System, Seattle, Washington 98108, USA
Am J Gastroenterol 101:76-82. 2006..This prevalence is very high (7.3%) even among persons without viral hepatitis C or excessive alcohol consumption and is strongly associated with risk factors for nonalcoholic fatty liver disease...
Is obesity associated with anemia of chronic disease? A population-based studyKarlee J Ausk
Department of Medicine, University of Washington, Seattle, Washington, USA
Obesity (Silver Spring) 16:2356-61. 2008..However, overweight and obese persons were not more likely to be anemic compared with normal-weight persons...
Relationship between transferrin-iron saturation, alcohol consumption, and the incidence of cirrhosis and liver cancerGeorge N Ioannou
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System, University of Washington, Seattle, Washington, USA
Clin Gastroenterol Hepatol 5:624-9. 2007..We examined the relation between baseline serum transferrin-iron saturation (TS) and the incidence of hospitalizations or deaths related to cirrhosis and liver cancer as well as the influence of alcohol consumption on this relationship...
Dietary cholesterol exacerbates hepatic steatosis and inflammation in obese LDL receptor-deficient miceSavitha Subramanian
Diabetes and Obesity Center of Excellence, University of Washington, Seattle, WA, USA
J Lipid Res 52:1626-35. 2011..Dietary cholesterol appears to confer a second "hit" that results in a distinct hepatic phenotype characterized by increased inflammation and oxidative stress...
Association between serum uric acid level and chronic liver disease in the United StatesAnita Afzali
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
Hepatology 52:578-89. 2010..Conclusion: The serum UA level is associated with the development of cirrhosis and the presence of elevated serum liver enzymes after adjustments for important causes and risk factors of chronic liver disease...
Excellent posttransplant survival for patients with nonalcoholic steatohepatitis in the United StatesAnita Afzali
Department of Medicine, Division of Gastroenterology, Veterans Affairs Puget Sound Health Care System and University of Washington, 1959 N E Pacific Street, Seattle, WA 98195, USA
Liver Transpl 18:29-37. 2012..In conclusion, NASH-related cirrhosis is increasing rapidly as an indication for liver transplantation in the United States and is associated with excellent posttransplant survival...
Serum ferritin level predicts advanced hepatic fibrosis among U.S. patients with phenotypic hemochromatosisElizabeth D Morrison
University of Washington, Seattle, Washington 98195, USA
Ann Intern Med 138:627-33. 2003..Liver biopsy to screen for cirrhosis may be unnecessary in such patients, regardless of age or serum liver enzyme levels...
Survival of liver transplant recipients with hemochromatosis in the United StatesLei Yu
Division of Gastroenterology, Department of Medicine Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle, Washington 98108, USA
Gastroenterology 133:489-95. 2007..We aimed to compare patients with hemochromatosis to those with other causes of liver disease with regard to post-transplantation survival...
25-Hydroxyvitamin D levels and albuminuria in the Third National Health and Nutrition Examination Survey (NHANES III)Ian H De Boer
Division of Nephrology, University of Washington, Seattle, WA 98117, USA
Am J Kidney Dis 50:69-77. 2007..Albuminuria is a risk factor for chronic kidney disease progression, end-stage renal disease, cardiovascular events, and mortality. Animal studies suggested that vitamin D insufficiency may contribute to the pathogenesis of albuminuria...
Insulin resistance predicts mortality in nondiabetic individuals in the U.SKarlee J Ausk
Division of Gastroenterology, Department of Medicine, Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle Washington, USA
Diabetes Care 33:1179-85. 2010..We aimed to determine whether insulin resistance, estimated by the homeostasis model assessment for insulin resistance (HOMA-IR), is associated with all-cause or disease-specific mortality among nondiabetic persons in the U.S...
Racial differences in the evaluation and treatment of hepatitis C among veterans: a retrospective cohort studyChristine M Rousseau
Northwest Health Services Research and Development Center of Excellence and the Northwest Hepatitis C Resource Center, VA Puget Sound Health Care System, Seattle, WA, USA
Am J Public Health 98:846-52. 2008..We examined the association between race and hepatitis C virus (HCV) evaluation and treatment of veterans in the Northwest Network of the Department of Veterans Affairs (VA)...
Circulating microRNAs in patients with chronic hepatitis C and non-alcoholic fatty liver diseaseSilvia Cermelli
Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
PLoS ONE 6:e23937. 2011..miR-122 levels also correlated with serum lipids in NAFLD patients. CONCLUSION: Serum levels of miR-34a and miR-122 may represent novel, noninvasive biomarkers of diagnosis and histological disease severity in patients with CHC or NAFLD...
Prospective evaluation of a clinical guideline for the diagnosis and management of iron deficiency anemiaGeorge N Ioannou
Division of Gastroenterology, University of Washington and Health Services Research and Development, Puget Sound Veterans Affairs Health Care System, Seattle, Washington, USA
Am J Med 113:281-7. 2002....
Predictors of colorectal cancer screening participation in the United StatesGeorge N Ioannou
Health Services Research, Veterans Affairs Puget Sound Health Care System, Seattle, Washington 98108, USA
Am J Gastroenterol 98:2082-91. 2003..3, 95% CI = 1.2-1.5). CONCLUSIONS: Interventions should be developed to improve screening for the subgroups who reported the lowest screening rates. Such interventions may incorporate individual screening strategy preferences...
Predictors of early treatment discontinuation among patients with genotype 1 hepatitis C and implications for viral eradicationLauren A Beste
Health Services Research and Development Center of Excellence, VA Puget Sound Healthcare System, Seattle, Washington, USA
Clin Gastroenterol Hepatol 8:972-8. 2010..Risk factors for discontinuation before 48 weeks among patients with genotype 1 HCV vary over the course of therapy. We investigated the rates and risk factors for treatment discontinuation within 12 weeks, 12-24 weeks, and 24-48 weeks...
Association between gestational diabetes and pregnancy-induced hypertensionChris L Bryson
VA Puget Sound Health Services Research and Development, Seattle, WA 98108 1597, USA
Am J Epidemiol 158:1148-53. 2003..2 for eclampsia and OR=3.1 for severe preeclampsia, p<0.05 for both) and among Black women (OR for eclampsia and preeclampsia together=3.9, p<0.05)...
Iron, HFE mutations, and hepatocellular carcinoma: is hepatic iron a carcinogen?George N Ioannou
Clin Gastroenterol Hepatol 1:246-8. 2003
Percutaneous ablation for hepatocellular carcinomaGeorge N Ioannou
Hepatology 41:942; author reply 942-3. 2005
The natural history of NAFLD: impressively unimpressiveGeorge N Ioannou
Gastroenterology 129:1805. 2005
