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Articles 31 - 37 of 37
Full-Text Articles in Medicine and Health Sciences
Obesity, Weight Change, And Risk Of Adenoma Recurrence: A Prospective Trial, Adeyinka Laiyemo, Chyke Doubeni, Dilhana Badurdeen, Gillian Murphy, Pamela Marcus, Robert Schoen, E. Lanza, Duane Smoot, A. Cross
Obesity, Weight Change, And Risk Of Adenoma Recurrence: A Prospective Trial, Adeyinka Laiyemo, Chyke Doubeni, Dilhana Badurdeen, Gillian Murphy, Pamela Marcus, Robert Schoen, E. Lanza, Duane Smoot, A. Cross
Chyke A. Doubeni
BACKGROUND AND STUDY AIMS: Obesity is a risk factor for colorectal neoplasia. Lifestyle modifications, including weight loss, have been advocated to reduce the risk. However, no prospective study has evaluated whether weight loss actually affects adenoma recurrence. The aim of this study was to examine whether weight change (loss or gain) over 4 years is associated with adenoma recurrence. PATIENTS AND METHODS: A total of 1826 patients with colorectal adenoma in the Polyp Prevention Trial had their height and weight measured at baseline. Adenoma recurrence was determined by end of trial colonoscopy 4 years after study entry when patients' weights …
Dementia And Risk Of Adverse Warfarin-Related Events In The Nursing Home Setting, Jennifer Tjia, Terry Field, Kathleen Mazor, Jennifer Donovan, Abir Kanaan, George Reed, Peter Doherty, Leslie Harrold, Jerry Gurwitz
Dementia And Risk Of Adverse Warfarin-Related Events In The Nursing Home Setting, Jennifer Tjia, Terry Field, Kathleen Mazor, Jennifer Donovan, Abir Kanaan, George Reed, Peter Doherty, Leslie Harrold, Jerry Gurwitz
Jennifer Tjia
BACKGROUND: Little attention has been focused on the safety of medications administered to treat non illnesses in nursing home residents with dementia. It is unclear whether this population is at increased risk of adverse drug events. OBJECTIVES: To test the hypotheses that in nursing home residents with dementia prescribed warfarin have less time in therapeutic range and a higher incidence of nonpreventable and preventable adverse warfarin events compared to nursing home residents without dementia after controlling for facility and patient characteristics. METHODS: A prospective cohort embedded in a clinical trial of nursing home residents prescribed warfarin in 26 nursing homes …
Deferasirox Removes Cardiac Iron And Attenuates Oxidative Stress In The Iron-Overloaded Gerbil, Rabaa Al-Rousan, Satyanarayana Paturi, Joseph Laurino, Sunil Kakarla, Anil Gutta, Ernest Walker, Eric Blough
Deferasirox Removes Cardiac Iron And Attenuates Oxidative Stress In The Iron-Overloaded Gerbil, Rabaa Al-Rousan, Satyanarayana Paturi, Joseph Laurino, Sunil Kakarla, Anil Gutta, Ernest Walker, Eric Blough
Eric Blough
Iron-induced cardiovascular disease is the leading cause of death in iron-overloaded patients. Deferasirox is a novel, once daily oral iron chelator that was recently approved for the treatment of transfusional iron overload. Here, we investigate whether deferasirox is capable of removing cardiac iron and improving iron-induced pathogenesis of the heart using the iron overload gerbil model. Animals were randomly divided into three groups: control, iron overload, and iron overload + deferasirox treatment. Iron-dextran was given 100 mg/kg per 5 days i.p for 10 weeks. Deferasirox treatment was taken post iron loading and was given at 100 mg/kg/day p.o for 1 …
Iron-Induced Cardiac Damage: Role Of Apoptosis And Deferasirox Intervention, Yeling Wang, Miaozong Wu, Rabaa Al-Rousan, Hua Liu, Jacqueline Fannin, Satyanarayana Paturi, Ravi Arvapalli, Anjaiah Katta, Sunil Kakarla, Kevin Rice, William Triest, Eric Blough
Iron-Induced Cardiac Damage: Role Of Apoptosis And Deferasirox Intervention, Yeling Wang, Miaozong Wu, Rabaa Al-Rousan, Hua Liu, Jacqueline Fannin, Satyanarayana Paturi, Ravi Arvapalli, Anjaiah Katta, Sunil Kakarla, Kevin Rice, William Triest, Eric Blough
Eric Blough
Excess cardiac iron levels are associated with cardiac damage and can result in increased morbidity and mortality. Here, we hypothesize that elevations in tissue iron can activate caspase-dependent signaling, which leads to increased cardiac apoptosis and fibrosis, and that these alterations can be attenuated by iron chelation. Using an iron-overloaded gerbil model, we show that increased cardiac iron is associated with reduced activation of Akt (Ser473 and Thr308), diminished phosphorylation of the proapoptotic regulator Bad (Ser136), and an increased Bax/Bcl-2 ratio. These iron-overload-induced alterations in Akt/Bad phosphorylation and Bax/Bcl-2 ratio were coupled with increased activation of the downstream caspase-9 (40/38- …
Age-Associated Changes In Hearts Of Male Fischer 344/Brown Norway F1 Rats, Ernest Walker, Michael Nillas, Elsa Mangiarua, Sylvestre Cansino, Ryan Morrison, Romaine Perdue, William Triest, Gary Wright, Mark Studeny, Paulette Wehner, Kevin Rice, Eric Blough
Age-Associated Changes In Hearts Of Male Fischer 344/Brown Norway F1 Rats, Ernest Walker, Michael Nillas, Elsa Mangiarua, Sylvestre Cansino, Ryan Morrison, Romaine Perdue, William Triest, Gary Wright, Mark Studeny, Paulette Wehner, Kevin Rice, Eric Blough
Paulette S. Wehner
Aging is associated with left ventricular hypertrophy, dilatation, and fibrosis of the heart. The Fischer 344/Brown Norway F1 (F344/BNF1) rat is recommended for age-related studies by the National Institutes on Aging because this hybrid rat lives longer and has a lower rate of pathological conditions than inbred rats. However, little is known about age-associated changes in cardiac and aortic function and structure in this model. This study evaluated age-related cardiac changes in male F344/BNF1 rats using ECHO, gross, and microscopic examinations. Rats aged 6-, 30-, and 36-mo were anesthetized and two-dimensional ECHO measurements, two-dimensional guided M-mode, Doppler M-mode, and other …
Type Iii Interferons, Il-28 And Il-29, Are Increased In Chronic Hcv Infection And Induce Myeloid Dendritic Cell-Mediated Foxp3+ Regulatory T Cells, Angela Dolganiuc, Karen Kodys, Christopher Marshall, Banishree Saha, Shuye Zhang, Shashi Bala, Gyongyi Szabo
Type Iii Interferons, Il-28 And Il-29, Are Increased In Chronic Hcv Infection And Induce Myeloid Dendritic Cell-Mediated Foxp3+ Regulatory T Cells, Angela Dolganiuc, Karen Kodys, Christopher Marshall, Banishree Saha, Shuye Zhang, Shashi Bala, Gyongyi Szabo
Gyongyi Szabo
BACKGROUND AND AIMS: Hepatitis C virus (HCV) is difficult to eradicate and type III interferons (IFN-lambda, composed of IL-28A, IL-28B and IL-29) are novel therapeutic candidates. We hypothesized that IFN-lambda have immunomodulatory effects in HCV- infected individuals. MATERIALS AND METHODS: We analyzed the expression of IFN-lambda and its receptor (composed of IL-10R2 and IFN-lambdaR subunits) in the blood and livers of patients with chronic (c)HCV infection compared to controls (those who cleared HCV by sustained virological response, SVR, and those with liver inflammation of non-viral origin, non-alcoholic steatohepatitis, NASH). We also compared the proliferative capacity of dendritic cells (DCs) obtained …
Improved Cardiovascular Risk Prediction Using Nonparametric Regression And Electronic Health Record Data, Edward Kennedy, Wyndy Wiitala, Rodney Hayward, Jeremy Sussman
Improved Cardiovascular Risk Prediction Using Nonparametric Regression And Electronic Health Record Data, Edward Kennedy, Wyndy Wiitala, Rodney Hayward, Jeremy Sussman
Edward H. Kennedy
Use of the electronic health record (EHR) is expected to increase rapidly in the near future, yet little research exists on whether analyzing internal EHR data using flexible, adaptive statistical methods could improve clinical risk prediction. Extensive implementation of EHR in the Veterans Health Administration provides an opportunity for exploration. Our objective was to compare the performance of various approaches for predicting risk of cerebrovascular and cardiovascular (CCV) death, using traditional risk predictors versus more comprehensive EHR data. Regression methods outperformed the Framingham risk score, even with the same predictors (AUC increased from 71% to 73% and calibration also improved). …