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Articles 121 - 126 of 126
Full-Text Articles in Medicine and Health Sciences
Imaging Islets Labeled Wth Magnetic Nanoparticules At 1.5 Tesla, J.H. Tai, Paula Foster, Alma Rosales, Biao Feng, Craig Ha, Violetta Martinez, Soha Ramadan, Jonatan Snir, C.W. Melling, Savita Dhanvantari, Brian Rutt, David White
Imaging Islets Labeled Wth Magnetic Nanoparticules At 1.5 Tesla, J.H. Tai, Paula Foster, Alma Rosales, Biao Feng, Craig Ha, Violetta Martinez, Soha Ramadan, Jonatan Snir, C.W. Melling, Savita Dhanvantari, Brian Rutt, David White
Jamie Melling
We have developed a magnetic resonance imaging (MRI) technique for imaging Feridex (superparamagnetic iron oxide [SPIO])-labeled islets of Langerhans using a standard clinical 1.5-Tesla (T) scanner and employing steady-state acquisition imaging sequence (3DFIESTA). Both porcine and rat islets were labeled with SPIO by a transfection technique using a combination of poly-l-lysine and electroporation. Electron microscopy demonstrated presence of SPIO particles within the individual islet cells, including beta-cells and particles trapped between cell membranes. Our labeling method produced a transfection rate of 860 pg to 3.4 ng iron per islet, dependent on the size of the islet. The labeling procedure did …
Chromosomal Localization Of The Islet Neogenesis Associated Protein (Ingap) Gene In Syrian Hamster By Tyramide Signal Amplification-Fluorescence In Situ Hybridization (Tsa-Fish), Sallie A. Smith
Biological Sciences Theses & Dissertations
Diabetes mellitus is a group of conditions characterized by hyperglycemia due to an inability to produce or properly utilize insulin. The majority of cases fall into two categories, Type I and Type 2. Type I results from the autoimmune destruction of pancreatic β-cells of the islets. The beta cells are the exclusive source of insulin and the patient becomes entirely dependent on exogenous insulin to survive. Patients with Type 2 are distinguished by insulin resistance, a condition that develops due to the inability of the body to effectively use the insulin being produced. The β-cells gradually lose their ability to …
Screening At Worksite Applying The Framingham Heart Study Score., Paulo A. Lotufo
Screening At Worksite Applying The Framingham Heart Study Score., Paulo A. Lotufo
Paulo A Lotufo
The first evaluation of class of occupation and cardiovascular risk factors in a Brazilian sample of civil servants. 1) context: Cardiovascular diseases are the main causes of death in Brazil. The high-risk approach to cardiovascular risk factors by screening test at worksite is one possible strategy of prevention. 2) objective: to verify the impact of a risk factors screening according to occupational levels. 3) type of study: cross-sectional 4) setting: occupational division of University of Sao Paulo 5) participants: 6,587 employees aged 20 to 69 years-old classified according three occupational grades (non-skilled, both manual and non-manual jobs; technical; faculty). 6) …
Presentation And Symptom Predictors Of Coronary Heart Disease In Patients With And Without Diabetes, Marjorie Funk, Janice B. Naum, Kerry A. Milner, Deborah Chyun
Presentation And Symptom Predictors Of Coronary Heart Disease In Patients With And Without Diabetes, Marjorie Funk, Janice B. Naum, Kerry A. Milner, Deborah Chyun
Nursing Faculty Publications
The aims of this prospective, observational study were to compare: (1) symptom presentation of coronary heart disease (CHD) between patients with and without diabetes and (2) symptom predictors of CHD in patients with and without diabetes. We directly observed 528 patients with symptoms suggestive of CHD as they presented to the ED of a 900-bed cardiac referral center in the northeastern United States. There were no significant differences in symptom presentation of CHD between patients with and without diabetes, although patients with diabetes were slightly more likely to present with shortness of breath (P =.056). Patients with diabetes reported …
Diabetes And All-Cause And Coronary Heart Disease Mortality Among Us Male Physicians, Paulo A. Lotufo, Joann E. Manson
Diabetes And All-Cause And Coronary Heart Disease Mortality Among Us Male Physicians, Paulo A. Lotufo, Joann E. Manson
Paulo A Lotufo
Background: While diabetes has long been associated
with increased risk of coronary heart disease (CHD), the
magnitude of risk of diabetes-related CHD is uncertain.
Objective: To evaluate the impact of diabetes and prior
CHD on all-cause and CHD mortality.
Methods: In a prospective cohort study of 91 285 US
male physicians aged 40 to 84 years, participants were
divided into 4 groups: (1) a reference group of 82 247
men free of both diabetes and CHD (previous myocardial
infarction and/or angina) at baseline, (2) 2317 men
with a history of diabetes but not CHD, (3) 5906 men
with a history …
Alcohol Consumption And Risk Of Coronary Heart Disease By Diabetes Status, Paulo A. Lotufo
Alcohol Consumption And Risk Of Coronary Heart Disease By Diabetes Status, Paulo A. Lotufo
Paulo A Lotufo
Background—An inverse association between moderate alcohol consumption and coronary heart disease (CHD) has been observed in several epidemiological studies. To assess whether a similar association exists among diabetics, we examined the relation between light to moderate alcohol consumption and CHD in men with and without diabetes mellitus in a prospective cohort study. Methods and Results—A total of 87 938 US physicians (2790 with diagnosed diabetes mellitus) who were invited to participate in the Physicians’ Health Study and were free of myocardial infarction, stroke, cancer, or liver disease at baseline were followed for an average of 5.5 years for death with …