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Articles 541 - 570 of 624

Full-Text Articles in Cardiovascular System

Estimated Birth Weight And Adult Cardiovascular Risk Factors In A Developing Southern Chinese Population: A Cross Sectional Study, C. Mary Schooling, C. Q. Jiang, T. H. Lam, B. J. Cowling, S. L. Yeung, W. S. Zhang, K. K. Cheng, G. M. Leung May 2010

Estimated Birth Weight And Adult Cardiovascular Risk Factors In A Developing Southern Chinese Population: A Cross Sectional Study, C. Mary Schooling, C. Q. Jiang, T. H. Lam, B. J. Cowling, S. L. Yeung, W. S. Zhang, K. K. Cheng, G. M. Leung

Publications and Research

Background: Birth weight is negatively associated with cardiovascular diseases and diabetes, but the associations are less well-established in developing populations where birth weight is often unavailable. We studied the association of birth weight and cardiovascular risk, using birth rank as an instrumental variable, in Southern China.

Methods: We used published data on birth weight by birth rank from an appropriate population and baseline data from the Guangzhou Biobank Cohort Study phases 2 & 3 (2005-8) to examine the adjusted associations, using instrumental variable analysis, of birth weight with clinically measured cardiovascular risk factors and the metabolic syndrome in older …


Patient Centered Care Approach To Adherence With Cardiovascular Medications: Self-Determination Theory Integration, David S. Li Apr 2010

Patient Centered Care Approach To Adherence With Cardiovascular Medications: Self-Determination Theory Integration, David S. Li

Health Services Research Dissertations

Problem statement. Behavioral intervention is used to improve adherence with medication in patients with cardiovascular diseases (CVD), but the effect was not sustainable. Patient-centered care (PCC) as a consumer movement has gained acceptance, but it lacks a theoretical framework. Self-determination theory (SDT) may provide an alternative to improve patients' adherence to chronic cardiovascular medication, as well as a theoretical framework for PCC. Both approaches to CVD management have not been evaluated.

Methods. The study was a quasi-experimental pretest posttest comparison design with consecutive sampling of a hospitalized cardiac patient population. Sixty patients each for the usual care (UC) …


Partial And Transitional Atrioventricular Septal Defect Outcomes., L Luann Minich, Andrew M. Atz, Steven D. Colan, Lynn A. Sleeper, Seema Mital, James Jaggers, Renee Margossian, Ashwin Prakash, Jennifer S. Li, Meryl S. Cohen, Ronald V. Lacro, Gloria L. Klein, John A. Hawkins, Pediatric Heart Network Investigators, Girish S. Shirali Feb 2010

Partial And Transitional Atrioventricular Septal Defect Outcomes., L Luann Minich, Andrew M. Atz, Steven D. Colan, Lynn A. Sleeper, Seema Mital, James Jaggers, Renee Margossian, Ashwin Prakash, Jennifer S. Li, Meryl S. Cohen, Ronald V. Lacro, Gloria L. Klein, John A. Hawkins, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Surgical and perioperative improvements permit earlier repair of partial and transitional atrioventricular septal defects (AVSD). We sought to describe contemporary outcomes in a multicenter cohort.

METHODS: We studied 87 patients undergoing primary biventricular repair of partial or transitional AVSD between June 2004 and February 2006 across seven North American centers. One-month and 6-month postoperative data included weight-for-age z-scores, left atrioventricular valve regurgitation (LAVVR) grade, residual shunts, and left ventricular ejection fraction. Paired methods were used to assess 6-month change.

RESULTS: Median age at surgery was 1.8 years; median weight z-score was -0.88. Median days for ventilation were 1, intensive …


Hypertension In Autosomal Dominant Polycystic Kidney Disease: A Clinical And Basic Science Perspective, Shobha Ratnam, Surya M. Nauli Jan 2010

Hypertension In Autosomal Dominant Polycystic Kidney Disease: A Clinical And Basic Science Perspective, Shobha Ratnam, Surya M. Nauli

Pharmacy Faculty Articles and Research

Cardiovascular complications are major causes of morbidity and mortality in patients with autosomal dominant polycystic kidney disease (ADPKD). In particular, hypertension is insidious and remains a continuous problem that evolves during the course of the disease. Hypertension in ADPKD has been associated with abnormality in the renin-angiotensin-aldosterone system (RAAS). Early vascular changes have also been reported in young ADPKD patients. In addition, the cellular functions of mechanosensory cilia within vascular system have emerged recently. The basic and clinical perspectives of RAAS, vascular remodeling and sensory cilia are reviewed with regard to hypertension in ADPKD


Clinico-Morphological Correlations In The Categorization Of Holes Between The Ventricles., Brad A. Friedman, Anthony Hlavacek, Karen Chessa, Girish S. Shirali, Eowyn Corcrain, Diane Spicer, Robert H. Anderson, Sinai Zyblewski Jan 2010

Clinico-Morphological Correlations In The Categorization Of Holes Between The Ventricles., Brad A. Friedman, Anthony Hlavacek, Karen Chessa, Girish S. Shirali, Eowyn Corcrain, Diane Spicer, Robert H. Anderson, Sinai Zyblewski

Manuscripts, Articles, Book Chapters and Other Papers

Controversy still exists in the categorization of holes between the ventricles, although they are the most common congenital cardiac malformation. Advanced imaging techniques such as three-dimensional echocardiography and computed tomographic angiography offer superb anatomical details of these defects. In this review, we have sought to collate the features highlighted in different categorizations and identify their similarities, but also emphasize their differences. We hope that an analysis of this type, now achievable during life, using advanced imaging, might lead to the appearance of a unified system for diagnosis and description of holes between the ventricles.


Parent- Versus Child-Reported Functional Health Status After The Fontan Procedure., Linda M. Lambert, L Luann Minich, Jane W. Newburger, Minmin Lu, Victoria L. Pemberton, Ellen A. Mcgrath, Andrew M. Atz, Mingfen Xu, Elizabeth Radojewski, Darlene Servedio, Brian W. Mccrindle, Pediatric Heart Network Investigators, Girish S. Shirali Nov 2009

Parent- Versus Child-Reported Functional Health Status After The Fontan Procedure., Linda M. Lambert, L Luann Minich, Jane W. Newburger, Minmin Lu, Victoria L. Pemberton, Ellen A. Mcgrath, Andrew M. Atz, Mingfen Xu, Elizabeth Radojewski, Darlene Servedio, Brian W. Mccrindle, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: We sought to compare perceptions of functional health status between children who had undergone a Fontan procedure and their parents.

METHODS: Fontan procedure survivors 10 to 18 years of age were included in the study if the child completed the Child Health Questionnaire (CHQ) and the parent completed the parent form to assess the child's functional health status. Comparisons were made between raw domain scores for the parent- and child-completed CHQs.

RESULTS: Between March 2003 and April 2004, 1078 Fontan survivors were screened. Of the 546 eligible and consented patients, 354 were 10-18 years of age and 328 parent/child …


Chromosomal Anomalies Influence Parental Treatment Decisions In Relation To Prenatally Diagnosed Congenital Heart Disease., Sinai C. Zyblewski, Elizabeth G. Hill, Girish S. Shirali, Andrew Atz, Geoffrey Forbus, Javier Gonzalez, Anthony Hlavacek Nov 2009

Chromosomal Anomalies Influence Parental Treatment Decisions In Relation To Prenatally Diagnosed Congenital Heart Disease., Sinai C. Zyblewski, Elizabeth G. Hill, Girish S. Shirali, Andrew Atz, Geoffrey Forbus, Javier Gonzalez, Anthony Hlavacek

Manuscripts, Articles, Book Chapters and Other Papers

This study aimed to identify the variables that influence parental treatment decisions after a prenatal diagnosis of congenital heart disease (CHD). The authors reviewed all cases of prenatally diagnosed structural CHD from August 1998 to December 2006 at their center. The following variables were studied as potential predictors of parental intent to treat: maternal age, race, insurance status, obstetric history, fetal gender, univentricular versus biventricular cardiac physiology, and fetal chromosomal abnormality. Uni- and multivariable logistic regression analyses were performed. In the review, 252 consecutive cases of prenatally diagnosed CHD were identified. Of these, 204 women pursued full medical treatment, whereas …


Comparison Of Echocardiographic And Cardiac Magnetic Resonance Imaging Measurements Of Functional Single Ventricular Volumes, Mass, And Ejection Fraction (From The Pediatric Heart Network Fontan Cross-Sectional Study)., Renee Margossian, Marcy L. Schwartz, Ashwin Prakash, Lisa Wruck, Steven D. Colan, Andrew M. Atz, Timothy J. Bradley, Mark A. Fogel, Lynne M. Hurwitz, Edward Marcus, Andrew J. Powell, Beth F. Printz, Michael D. Puchalski, Jack Rychik, Girish S. Shirali, Richard Williams, Shi-Joon Yoo, Tal Geva, Pediatric Heart Network Investigators Aug 2009

Comparison Of Echocardiographic And Cardiac Magnetic Resonance Imaging Measurements Of Functional Single Ventricular Volumes, Mass, And Ejection Fraction (From The Pediatric Heart Network Fontan Cross-Sectional Study)., Renee Margossian, Marcy L. Schwartz, Ashwin Prakash, Lisa Wruck, Steven D. Colan, Andrew M. Atz, Timothy J. Bradley, Mark A. Fogel, Lynne M. Hurwitz, Edward Marcus, Andrew J. Powell, Beth F. Printz, Michael D. Puchalski, Jack Rychik, Girish S. Shirali, Richard Williams, Shi-Joon Yoo, Tal Geva, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

Assessment of the size and function of a functional single ventricle (FSV) is a key element in the management of patients after the Fontan procedure. Measurement variability of ventricular mass, volume, and ejection fraction (EF) among observers by echocardiography and cardiac magnetic resonance imaging (CMR) and their reproducibility among readers in these patients have not been described. From the 546 patients enrolled in the Pediatric Heart Network Fontan Cross-Sectional Study (mean age 11.9 +/- 3.4 years), 100 echocardiograms and 50 CMR studies were assessed for measurement reproducibility; 124 subjects with paired studies were selected for comparison between modalities. Interobserver agreement …


Functional State Following The Fontan Procedure., Ismee A. Williams, Lynn A. Sleeper, Steven D. Colan, Minmin Lu, Elizabeth A. Stephenson, Jane W. Newburger, Welton M. Gersony, Meryl S. Cohen, James F. Cnota, Andrew M. Atz, Richard V. Williams, Renee Margossian, Andrew J. Powell, Mario P. Stylianou, Daphne T. Hsu, Pediatric Heart Network Investigators, Girish S. Shirali Aug 2009

Functional State Following The Fontan Procedure., Ismee A. Williams, Lynn A. Sleeper, Steven D. Colan, Minmin Lu, Elizabeth A. Stephenson, Jane W. Newburger, Welton M. Gersony, Meryl S. Cohen, James F. Cnota, Andrew M. Atz, Richard V. Williams, Renee Margossian, Andrew J. Powell, Mario P. Stylianou, Daphne T. Hsu, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Despite improvements in outcomes after completion of the Fontan circulation, long-term functional state varies. We sought to identify pre- and postoperative characteristics associated with overall function.

METHODS AND RESULTS: We analyzed data from 476 survivors with the Fontan circulation enrolled in the Pediatric Heart Network Fontan Cross-sectional Study. Mean age at creation of the Fontan circulation was 3.4 plus or minus 2.1 years, with a range from 0.7 to 17.5 years, and time since completion was 8.7 plus or minus 3.4 years, the range being from 1.1 to 17.3 years. We calculated a functional score for the survivors by …


Field Testing Adolescent Females For Cardiovascular Disease Risk, C. Jayne Brahler, Wesley R. Stephens, Betsy Donahoe Fillmore Jun 2009

Field Testing Adolescent Females For Cardiovascular Disease Risk, C. Jayne Brahler, Wesley R. Stephens, Betsy Donahoe Fillmore

Physical Therapy Faculty Publications

Over-fatness and poor cardiovascular (CV) fitness are well-documented risk factors for cardiovascular disease (CVD) in adults, but less is known about their association with disease risk in adolescents. This study aimed to determine the relationship between anthropometrics, fitness, and CVD risk.

Six anthropometric indicators of body fatness, seven measures of fitness, and seven metabolic and hemodynamic CVD risk factors were measured in a convenience sample of 28 female high school students (15-18 years of age). A tally was made of the number of factors for which each subject was outside the normal reference range (CVD risk).

Correlation analyses were completed …


Fetal Cocaine Exposure Causes Epigenetic Changes In The Rat Heart, Kurt D. Meyer Jun 2009

Fetal Cocaine Exposure Causes Epigenetic Changes In The Rat Heart, Kurt D. Meyer

Loma Linda University Electronic Theses, Dissertations & Projects

Cocaine abuse continues to be prevalent in the United States and other industrialized nations, in addition to the negative health effects that cocaine abuse has on the user, a mother who uses cocaine while pregnant also exposes the developing fetus to cocaine. Although there have been many studies of the effects of cocaine on the adult heart, studies of cocaine on the fetal heart and its potential delayed pathophysiological effects on cardiac function in adult offspring are extremely limited. The studies of the present project sought to enhance the understanding of the effect of cocaine exposure on the fetal heart …


Universal Screening For Extracardiac Abnormalities In Neonates With Congenital Heart Disease., Javier H. Gonzalez, Girish S. Shirali, Andrew M. Atz, Sarah N. Taylor, Geoffrey A. Forbus, Sinai C. Zyblewski, Anthony M. Hlavacek Apr 2009

Universal Screening For Extracardiac Abnormalities In Neonates With Congenital Heart Disease., Javier H. Gonzalez, Girish S. Shirali, Andrew M. Atz, Sarah N. Taylor, Geoffrey A. Forbus, Sinai C. Zyblewski, Anthony M. Hlavacek

Manuscripts, Articles, Book Chapters and Other Papers

Extracardiac or genetic abnormalities (EGA) represent a factor in the morbidity of patients with congenital heart disease. We evaluated the way neonates with CHD are screened at our institution and determined the yield for the screening tests. We reviewed the charts of 223 neonates with structural CHD. Subjects were categorized into 6 groups: univentricular, left-sided obstructive lesions, right-sided obstructive lesions, septal defects, conotruncal defects (CTD), and other. We reviewed which patients underwent cranial ultrasonogram (CUS), abdominal ultrasonogram (AUS), and/or genetic studies (GS) as well as their results. There was a high prevalence of EGA in each group by CUS (32% …


Enumeration Of Endothelial Progenitor Cells In Hind Limb Suspended Rats And The Mechanics Of Endothelial Wound Healing, Jarrod Matthew Pennington Jan 2009

Enumeration Of Endothelial Progenitor Cells In Hind Limb Suspended Rats And The Mechanics Of Endothelial Wound Healing, Jarrod Matthew Pennington

Theses, Dissertations and Capstones

The endothelium repairs itself through two methods. One is by the activity of circulating endothelial progenitor cells (EPCs). EPCs are immature endothelial cells that circulate the bloodstream that are capable of proliferation and differentiation into mature endothelium. It is thought that EPCs contribute to the repair and replacement of damaged endothelial cells in the process of reendothelialization. Physical inactivity and bed rest are known to be deleterious to the endothelium. It is possible that this inactivity is also deleterious to the number of viable EPCs, which would reduce the ability of the endothelium to repair itself. We used hind limb …


Rationale And Design Of A Trial Of Angiotensin-Converting Enzyme Inhibition In Infants With Single Ventricle., Daphne T. Hsu, Seema Mital, Chitra Ravishankar, Renee Margossian, Jennifer S. Li, Lynn A. Sleeper, Richard V. Williams, Jami C. Levine, Brian W. Mccrindle, Andrew M. Atz, Darlene Servedio, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali Jan 2009

Rationale And Design Of A Trial Of Angiotensin-Converting Enzyme Inhibition In Infants With Single Ventricle., Daphne T. Hsu, Seema Mital, Chitra Ravishankar, Renee Margossian, Jennifer S. Li, Lynn A. Sleeper, Richard V. Williams, Jami C. Levine, Brian W. Mccrindle, Andrew M. Atz, Darlene Servedio, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Angiotensin converting enzyme (ACE) inhibitors are known to improve clinical outcome and ventricular function in adults with heart failure. Infants with single-ventricle physiology show abnormalities in ventricular function as well as poor growth. The ability of an ACE inhibitor to preserve ventricular function and improve growth in these infants is unknown.

METHODS: The Pediatric Heart Network designed a randomized, double-blind trial to compare outcomes in infants with single-ventricle physiology receiving enalapril or placebo. Neonates < or =45 days old were eligible. The primary outcome is weight-for-age Z-score at 14 months of age. Secondary outcomes include other measures of somatic growth, laboratory and functional measures of heart failure, developmental indices, measures of ventricular size and function, and the relationship of the renin-angiotensin-aldosterone system genotype to the response to enalapril. The incidence and spectrum of adverse events will also be compared between treatment groups.

RESULTS: A total of 1,245 neonates were screened and 533 (43%) were eligible. The consent rate was 43%; 230 subjects were enrolled. Parental reluctance to …


Sequential Segmental Analysis., Robert H. Anderson, Girish S. Shirali Jan 2009

Sequential Segmental Analysis., Robert H. Anderson, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Characterization Of Murine Cardiac Cholinergic Innervation And Its Remodeling In Type 1 Diabetes., Abigail Marie Mabe Dec 2008

Characterization Of Murine Cardiac Cholinergic Innervation And Its Remodeling In Type 1 Diabetes., Abigail Marie Mabe

Electronic Theses and Dissertations

Murine models have become increasingly popular to study various aspects of cardiovascular diseases due to their ease of genetic manipulation. Unfortunately, there has been little effort put into describing the distribution of autonomic nerves in the mouse heart, making it difficult to compare current findings from clinical and experimental models related to cardiovascular diseases. Furthermore, determination of the requirements for the development of this system and its maintenance in adult mice remains largely unexplored. This study represents the first detailed mapping of cholinergic neuroanatomy of the mouse heart based on immunohistochemical staining using true cholinergic markers. We found cholinergic innervation …


Design And Rationale Of A Randomized Trial Comparing The Blalock-Taussig And Right Ventricle-Pulmonary Artery Shunts In The Norwood Procedure., Richard G. Ohye, J William Gaynor, Nancy S. Ghanayem, Caren S. Goldberg, Peter C. Laussen, Peter C. Frommelt, Jane W. Newburger, Gail D. Pearson, Sarah Tabbutt, Gil Wernovsky, Lisa M. Wruck, Andrew M. Atz, Steve D. Colan, James Jaggers, Brian W. Mccrindle, Ashwin Prakash, Michael D. Puchalski, Lynn A. Sleeper, Mario P. Stylianou, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali Oct 2008

Design And Rationale Of A Randomized Trial Comparing The Blalock-Taussig And Right Ventricle-Pulmonary Artery Shunts In The Norwood Procedure., Richard G. Ohye, J William Gaynor, Nancy S. Ghanayem, Caren S. Goldberg, Peter C. Laussen, Peter C. Frommelt, Jane W. Newburger, Gail D. Pearson, Sarah Tabbutt, Gil Wernovsky, Lisa M. Wruck, Andrew M. Atz, Steve D. Colan, James Jaggers, Brian W. Mccrindle, Ashwin Prakash, Michael D. Puchalski, Lynn A. Sleeper, Mario P. Stylianou, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: The initial palliative procedure for patients born with hypoplastic left heart syndrome and related single right ventricle anomalies, the Norwood procedure, remains among the highest risk procedures in congenital heart surgery. The classic Norwood procedure provides pulmonary blood flow with a modified Blalock-Taussig shunt. Improved outcomes have been reported in a few small, nonrandomized studies of a modification of the Norwood procedure that uses a right ventricle-pulmonary artery shunt to provide pulmonary blood flow. Other nonrandomized studies have shown no differences between the two techniques.

METHODS: The Pediatric Heart Network designed a randomized clinical trial to compare outcomes for …


Functional Status, Heart Rate, And Rhythm Abnormalities In 521 Fontan Patients 6 To 18 Years Of Age., Andrew D. Blaufox, Lynn A. Sleeper, David J. Bradley, Roger E. Breitbart, Allan Hordof, Ronald J. Kanter, Elizabeth A. Stephenson, Mario Stylianou, Victoria L. Vetter, J Philip Saul, Pediatric Heart Network Investigators Jul 2008

Functional Status, Heart Rate, And Rhythm Abnormalities In 521 Fontan Patients 6 To 18 Years Of Age., Andrew D. Blaufox, Lynn A. Sleeper, David J. Bradley, Roger E. Breitbart, Allan Hordof, Ronald J. Kanter, Elizabeth A. Stephenson, Mario Stylianou, Victoria L. Vetter, J Philip Saul, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVES: Our objective was to determine the relationship between functional outcome and abnormalities of heart rate and rhythm after the Fontan operation.

METHODS: The National Heart, Lung, and Blood Institute Pediatric Heart Network conducted a cross-sectional analysis of patients who had undergone a Fontan procedure at the 7 network centers. Analysis was based on 521 patients with an electrocardiogram (n = 509) and/or bicycle exercise test (n = 404). The Child Health Questionnaire parent report and the oxygen consumption at the anaerobic threshold were used as markers of functional outcome.

RESULTS: Various Fontan procedures had been performed: intracardiac lateral tunnel …


The Mind-Body Connection: The Association Between Adolescent Locus Of Control And Indicators Of Physical Health, C. Jayne Brahler, James Cropper Feb 2008

The Mind-Body Connection: The Association Between Adolescent Locus Of Control And Indicators Of Physical Health, C. Jayne Brahler, James Cropper

Physical Therapy Faculty Publications

Locus of control (LOC) describes an individual’s generalized beliefs or expectancies that their reinforcements are under internal versus external control (1). An individual exhibits either an internal or external LOC. This study examines the link between LOC and selected health risk factors in adolescents. A convenience sample of 167 high school physical education students completed a 13-item LOC questionnaire based on Rotter’s 1966 instrument.

Various anthropometric measurements, blood pressure, body mass index (BMI), and body fat were recorded on all subjects. A subsample of 61 female students received blood chemistry analysis that included a lipid profile, hemoglobin A1c (HbA1c), Apo …


Bradykinin Type 2 Receptor Be1 Genotype Influences Bradykinin-Dependent Vasodilation During Angiotensin-Converting Enzyme Inhibition, Gary Van Guilder, Mias Pretorius, James M Luther, J Brian Byrd, Kevin Hill, James V Gainer, Nancy J Brown Feb 2008

Bradykinin Type 2 Receptor Be1 Genotype Influences Bradykinin-Dependent Vasodilation During Angiotensin-Converting Enzyme Inhibition, Gary Van Guilder, Mias Pretorius, James M Luther, J Brian Byrd, Kevin Hill, James V Gainer, Nancy J Brown

Health and Nutritional Sciences Faculty Publications

To test the hypothesis that the bradykinin receptor 2 (BDKRB2) BE1+9/-9 polymorphism affects vascular responses to bradykinin, we measured the effect of intra-arterial bradykinin on forearm blood flow and tissue-type plasminogen activator (t-PA) release in 89 normotensive, nonsmoking, white American subjects in whom degradation of bradykinin was blocked by enalaprilat. BE1 genotype frequencies were +9/+9:+9/-9:-9/-9=19:42:28. BE1 genotype was associated with systolic blood pressure (121.4+/-2.8, 113.8+/-1.8, and 110.6+/-1.8 mm Hg in +9/+9, +9/-9, and -9/-9 groups, respectively; P=0.007). In the absence of enalaprilat, bradykinin-stimulated forearm blood flow, forearm vascular resistance, and net t-PA release were similar among genotype groups. Enalaprilat increased …


Generation Of Recombinant Mouse Embryonic Stem Cell Lines And Theirapplication For In Vivo Bioluminiscence Imaging In The Heart, Ramana Kammili Jan 2008

Generation Of Recombinant Mouse Embryonic Stem Cell Lines And Theirapplication For In Vivo Bioluminiscence Imaging In The Heart, Ramana Kammili

Electronic Theses and Dissertations

Cardiovascular disease is the major cause of death in the United States, with 80 million people suffering from some form of heart disease each year. One major limitation is the inability of the heart to repair the damaged tissue. Stem cell therapy holds enormous promise to repair and regenerate the damaged myocardium, but there are many technical difficulties that must first be overcome. One such difficulty is the present lack of ability to track and assess transplanted stem cells over time in vivo. The central hypothesis of this thesis is that in vivo bioluminescence imaging is a safe and useful …


Effect Of Thyroid Hormones On At1r Mrna Levels In Hek 293 Cells: Implications For Early-Onset Hypertension In Children Born Of Preeclamptic Women, Amanda Eddins Jan 2008

Effect Of Thyroid Hormones On At1r Mrna Levels In Hek 293 Cells: Implications For Early-Onset Hypertension In Children Born Of Preeclamptic Women, Amanda Eddins

Theses and Dissertations

This experiment tested the effect of thyroid hormones, T3 or T4, on angiotensin II type 1 receptor mRNA levels in human embryonic kidney cells (HEK). Maternal preeclampsia is a prediction of higher ambulatory blood pressure (ABP) in the exposed offspring. The mother's blood pressure affects the blood pressure of the fetus since the placenta mediates blood flow. Thyroid hormone can increase production of angiotensinogen, which is a part of the renin-angiotensin system (RAS). RAS regulates blood pressure. Hypothesis: HEK 293 cells treated with T3 and T4 will have more angiotensin II type I receptors than those not treated with T3 …


Dependence In Prestroke Mobility Predicts Adverse Outcomes Among Patients With Acute Ischemic Stroke, Mary I. Dallas, Shari Rone-Adams, John L. Echternach, Lawrence M. Bass, Dawn M. Bravata Jan 2008

Dependence In Prestroke Mobility Predicts Adverse Outcomes Among Patients With Acute Ischemic Stroke, Mary I. Dallas, Shari Rone-Adams, John L. Echternach, Lawrence M. Bass, Dawn M. Bravata

Rehabilitation Sciences Faculty Publications

Background and Purpose - Stroke survivors are commonly dependent in activities of daily living; however, the relation between prestroke mobility impairment and poststroke outcomes is poorly understood. The primary objective of this study was to evaluate the association between prestroke mobility impairment and 4 poststroke outcomes. The secondary objective was to evaluate the association between prestroke mobility impairment and a plan for physical therapy.

Methods - This was a secondary analysis of the National Stroke Project data, a retrospective cohort of Medicare beneficiaries who were hospitalized with an acute ischemic stroke (1998 to 2001). Logistic-regression modeling was used to examine …


Three Dimensional Echocardiography In Congenital Heart Defects., Girish S. Shirali Jan 2008

Three Dimensional Echocardiography In Congenital Heart Defects., Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

Three dimensional echocardiography (3DE) is a new, rapidly evolving modality for cardiac imaging. Important technological advances have heralded an era where practical 3DE scanning is becoming a mainstream modality. We review the modes of 3DE that can be used. The literature has been reviewed for articles that examine the applicability of 3DE to congenital heart defects to visualize anatomy in a spectrum of defects ranging from atrioventricular septal defects to mitral valve abnormalities and Ebstein's anomaly. The use of 3DE color flow to obtain echocardiographic angiograms is illustrated. The state of the science in quantitating right and left ventricular volumetrics …


Survival After Bidirectional Cavopulmonary Anastomosis: Analysis Of Preoperative Risk Factors., Mark A. Scheurer, Elizabeth G Hill, Nagavardhan Vasuki, Scott Maurer, Eric M. Graham, Varsha Bandisode, Girish S. Shirali, Andrew M. Atz, Scott M. Bradley Jul 2007

Survival After Bidirectional Cavopulmonary Anastomosis: Analysis Of Preoperative Risk Factors., Mark A. Scheurer, Elizabeth G Hill, Nagavardhan Vasuki, Scott Maurer, Eric M. Graham, Varsha Bandisode, Girish S. Shirali, Andrew M. Atz, Scott M. Bradley

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: Prognostic factors for survival after bidirectional cavopulmonary anastomosis for functionally single ventricle are not well defined. We analyzed preoperative hemodynamic and echocardiographic data to determine risk factors for death or transplantation at least 1 year after bidirectional cavopulmonary anastomosis.

METHODS: Data for all patients who underwent bidirectional cavopulmonary anastomosis before 5 years of age at our institution from September 1995 through June 2005 were analyzed. Available preoperative echocardiograms and catheterizations were reviewed. Survivors were compared with those who died or underwent transplantation. Bivariable associations between demographic and clinical risk factors and survival status (alive without transplantation vs dead or …


Maturational Changes In Cerebrovascular Thick- And Thin-Filament Regulation, Renan Joel Sandoval May 2007

Maturational Changes In Cerebrovascular Thick- And Thin-Filament Regulation, Renan Joel Sandoval

Loma Linda University Electronic Theses, Dissertations & Projects

The present study focused on the main hypothesis that age-related changes in myofilament Ca2+ sensitivity involve simultaneous changes in the relations between cytosolic Ca2+ transients, myosin phosphorylation, and force development. To define the effects of late fetal and early postnatal maturation, parallel experiments were carried out using cerebral arteries from both term lamb fetuses (140-141 days of gestation) and nonpregnant adult sheep. Fetal and adult cerebral arteries were stimulated by either mechanically, electromechanically, and/or pharmacomechanically-induced contractions, and the relations of cytosolic Ca2+, MLC phosphorylation, and contractile tensions were measured. These measurements allowed for stimulus and age-dependent …


Finding The Fastest Way To Her Heart: Linking Clinical And Policy Pathways, Paula Johnson, Brian R. Schuetz, Shelley M. Stark, Dora Tovar Mar 2007

Finding The Fastest Way To Her Heart: Linking Clinical And Policy Pathways, Paula Johnson, Brian R. Schuetz, Shelley M. Stark, Dora Tovar

New England Journal of Public Policy

The Mary Horrigan Connors Center for Women’s Health and Gender Biology at Brigham and Women’s Hospital in Boston, integrates research, clinical practice, and policy analysis with practical application to emerging women’s health issues. Recently, an interdisciplinary team of practitioners examined pathways to improving women’s heart health. Beginning with the evidence that a heart-healthy diet leads to improved health outcomes for women with cardiovascular disease, the Connors Center team charted a course of intellectual exploration that culminated in a broader community dialogue on how to improve access to healthy and affordable food. Through clinical experiences, research activities, and an ongoing interchange …


Chronic Acetaminophen Treatment Influences Indices Of Reactive Oxygen Species Accumulation In The Aging Fisher 344 X Brown Norway Rat Aorta, Sarath Meduru Jan 2007

Chronic Acetaminophen Treatment Influences Indices Of Reactive Oxygen Species Accumulation In The Aging Fisher 344 X Brown Norway Rat Aorta, Sarath Meduru

Theses, Dissertations and Capstones

We have previously reported that aging in the Fisher 344 X Brown Norway (FBN) rat aorta is characterized by increased levels of ROS and alterations in cell signaling. Acetaminophen was found to scavenge free radicals in recent ischemia-reperfusion studies. Here we examined if chronic treatment with a therapeutic dose of acetaminophen attenuates age-associated increase in aortic ROS accumulation and signaling. FBN rats (27 month old; n=8) were subjected to 6 months of treatment with a therapeutic dose of acetaminophen (30mg/kg/day), with age-matched untreated FBN rats as controls. Protein oxidation levels were altered in control and treated aortae compared to aortae …


A Continued Investigation Of Craniofacial Growth In Infant Heart Transplant Recipients Receiving Cyclosporine, Gabriel Enriquez Dec 2006

A Continued Investigation Of Craniofacial Growth In Infant Heart Transplant Recipients Receiving Cyclosporine, Gabriel Enriquez

Loma Linda University Electronic Theses, Dissertations & Projects

Since the mid 1980’s, Cyclosporine has proved to be an effective immunosuppressive drug and now has a widespread application in organ transplantation. Several studies, however, have implicated cyclosporine as adversely affecting craniofacial growth in the pediatric population. 16,18 The purpose of this follow-up study was to continue to evaluate the possible untoward effects of long-term use of cyclosporine on craniofacial growth in a group of infant heart transplantation recipients by re-evaluating as many subjects as possible from the original study and evaluating new subjects. A pediatric group (N=13) was composed of six Caucasian subjects (4 male and 2 female, ages …


Guidelines And Standards For Performance Of A Pediatric Echocardiogram: A Report From The Task Force Of The Pediatric Council Of The American Society Of Echocardiography., Wyman W. Lai, Tal Geva, Girish S. Shirali, Peter C. Frommelt, Richard A. Humes, Michael M. Brook, Ricardo H. Pignatelli, Jack Rychik, Pediatric Council Of The American Society Of Echocardiography Dec 2006

Guidelines And Standards For Performance Of A Pediatric Echocardiogram: A Report From The Task Force Of The Pediatric Council Of The American Society Of Echocardiography., Wyman W. Lai, Tal Geva, Girish S. Shirali, Peter C. Frommelt, Richard A. Humes, Michael M. Brook, Ricardo H. Pignatelli, Jack Rychik, Pediatric Council Of The American Society Of Echocardiography

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