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2009

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Articles 1 - 30 of 87

Full-Text Articles in Medicine and Health Sciences

Regulation Of Cellular Protein Phosphatase-1 (Pp1) By Phosphorylation Of The Cpi-17 Family, C-Kinase-Activated Pp1 Inhibitors., Masumi Eto Dec 2009

Regulation Of Cellular Protein Phosphatase-1 (Pp1) By Phosphorylation Of The Cpi-17 Family, C-Kinase-Activated Pp1 Inhibitors., Masumi Eto

Department of Molecular Physiology and Biophysics Faculty Papers

The regulatory circuit controlling cellular protein phosphatase-1 (PP1), an abundant group of Ser/Thr phosphatases, involves phosphorylation of PP1-specific inhibitor proteins. Malfunctions of these inhibitor proteins have been linked to a variety of diseases, including cardiovascular disease and cancer. Upon phosphorylation at Thr(38), the 17-kDa PP1 inhibitor protein, CPI-17, selectively inhibits a specific form of PP1, myosin light chain phosphatase, which transduces multiple kinase signals into the phosphorylation of myosin II and other proteins. Here, the mechanisms underlying PP1 inhibition and the kinase/PP1 cross-talk mediated by CPI-17 and its related proteins, PHI, KEPI, and GBPI, are discussed.


Oocyte Peptides As Paracrine Tools For Ovarian Stimulation And Oocyte Maturation., David G Mottershead, Andrew J Watson Dec 2009

Oocyte Peptides As Paracrine Tools For Ovarian Stimulation And Oocyte Maturation., David G Mottershead, Andrew J Watson

Obstetrics & Gynaecology Publications

Recent studies report the production and isolation of a stable bioactive recombinant human bone morphogenetic protein 15 (rhBMP15) that is appropriately processed in HEK-293 cells and activates the SMAD 1/5/8 pathway in mouse granulosa cell cultures. Further, the purified rhBMP15 induces the expression of genes associated with cumulus expansion. Thanks to recent research, we have a greater understanding of the importance of the dialogue that occurs between the oocyte and the granulosa cell layer with regard to regulating folliculogenesis and the acquisition of oocyte developmental competence and maturation. BMP15 is one of the critical components of these intra-follicular communication pathways. …


Effect Of Donor Ethnicity On Kidney Survival In Different Recipient Pairs: An Analysis Of The Optn/Unos Database., C O. Callender, W S. Cherikh, P Traverso, A Hernandez, Tolulope A. Oyetunji, D Chang Dec 2009

Effect Of Donor Ethnicity On Kidney Survival In Different Recipient Pairs: An Analysis Of The Optn/Unos Database., C O. Callender, W S. Cherikh, P Traverso, A Hernandez, Tolulope A. Oyetunji, D Chang

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Previous multivariate analysis performed between April 1, 1994, and December 31, 2000 from the Organ Procurement Transplant Network/United Network for Organ Sharing (OPTN/UNOS) database has shown that kidneys from black donors were associated with lower graft survival. We compared graft and patient survival of different kidney donor-to-recipient ethnic combinations to see if this result still holds on a recent cohort of US kidney transplants.

METHODS: We included 72,495 recipients of deceased and living donor kidney alone transplants from 2001 to 2005. A multivariate Cox regression method was used to analyze the effect of donor-recipient ethnicity on graft and patient …


Mitochondrial Mislocalization Underlies Abeta42-Induced Neuronal Dysfunction In A Drosophila Model Of Alzheimer's Disease., Kanae Iijima-Ando, Stephen A Hearn, Christopher Shenton, Anthony Gatt, Lijuan Zhao, Koichi Iijima Dec 2009

Mitochondrial Mislocalization Underlies Abeta42-Induced Neuronal Dysfunction In A Drosophila Model Of Alzheimer's Disease., Kanae Iijima-Ando, Stephen A Hearn, Christopher Shenton, Anthony Gatt, Lijuan Zhao, Koichi Iijima

Department of Biochemistry and Molecular Biology Faculty Papers

The amyloid-beta 42 (Abeta42) is thought to play a central role in the pathogenesis of Alzheimer's disease (AD). However, the molecular mechanisms by which Abeta42 induces neuronal dysfunction and degeneration remain elusive. Mitochondrial dysfunctions are implicated in AD brains. Whether mitochondrial dysfunctions are merely a consequence of AD pathology, or are early seminal events in AD pathogenesis remains to be determined. Here, we show that Abeta42 induces mitochondrial mislocalization, which contributes to Abeta42-induced neuronal dysfunction in a transgenic Drosophila model. In the Abeta42 fly brain, mitochondria were reduced in axons and dendrites, and accumulated in the somata without severe mitochondrial …


Brazilian Adolescents Infected By Hiv: Epidemiologic Characteristics And Adherence To Treatment, Julia K. C. Machado, Maria J. C. Sant'anna, Veronica Coates, Flavia J. Almeida, Eitan N. Berezin, Hatim A. Omar Nov 2009

Brazilian Adolescents Infected By Hiv: Epidemiologic Characteristics And Adherence To Treatment, Julia K. C. Machado, Maria J. C. Sant'anna, Veronica Coates, Flavia J. Almeida, Eitan N. Berezin, Hatim A. Omar

Pediatrics Faculty Publications

Over the last 3 decades since the first AIDS cases appeared, we have witnessed great progress in therapeutic methodologies that have transformed the evolution of the disease from debilitating and fatal, into chronic and controllable. HIV-infected children are arriving at adolescence and bringing specific challenges, not only to themselves, but also to their families and caregivers. This retrospective study sets forth epidemiological and treatment characteristics of 46 HIV-infected adolescents followed in a specialized university service relating said characteristics to therapy adherence assessed through a combination of three indirect methods. Therapy adherence did not reveal any association with either epidemiologic characteristics …


Embolic Complication Of Tako-Tsubo Cardiomyopathy., Vincent M. Figueredo, S Gupta Nov 2009

Embolic Complication Of Tako-Tsubo Cardiomyopathy., Vincent M. Figueredo, S Gupta

Department of Medical Genetics Faculty Papers

No abstract provided.


An Exploratory Analysis Of The Impact Of Family Functioning On Treatment For Depression In Adolescents., Norah C. Feeny, Susan G. Silva, Mark A. Reinecke, Steven Mcnulty, Robert L. Findling, Paul Rohde, John F. Curry, Golda S. Ginsburg, Christopher J. Kratochvil, Sanjeev M. Pathak, Diane E. May, Betsy D. Kennard, Anne D. Simons, Karen C. Wells, Michele Robins, David Rosenberg, John S. March Nov 2009

An Exploratory Analysis Of The Impact Of Family Functioning On Treatment For Depression In Adolescents., Norah C. Feeny, Susan G. Silva, Mark A. Reinecke, Steven Mcnulty, Robert L. Findling, Paul Rohde, John F. Curry, Golda S. Ginsburg, Christopher J. Kratochvil, Sanjeev M. Pathak, Diane E. May, Betsy D. Kennard, Anne D. Simons, Karen C. Wells, Michele Robins, David Rosenberg, John S. March

Journal Articles: Psychiatry

This article explores aspects of family environment and parent-child conflict that may predict or moderate response to acute treatments among depressed adolescents (N = 439) randomly assigned to fluoxetine, cognitive behavioral therapy, their combination, or placebo. Outcomes were Week 12 scores on measures of depression and global impairment. Of 20 candidate variables, one predictor emerged: Across treatments, adolescents with mothers who reported less parent-child conflict were more likely to benefit than their counterparts. When family functioning moderated outcome, adolescents who endorsed more negative environments were more likely to benefit from fluoxetine. Similarly, when moderating effects were seen on cognitive behavioral …


Dysfunctional Attitudes Scale Perfectionism: A Predictor And Partial Mediator Of Acute Treatment Outcome Among Clinically Depressed Adolescents., Rachel H. Jacobs, Susan G. Silva, Mark A. Reinecke, John F. Curry, Golda S. Ginsburg, Christopher J. Kratochvil, John S. March Nov 2009

Dysfunctional Attitudes Scale Perfectionism: A Predictor And Partial Mediator Of Acute Treatment Outcome Among Clinically Depressed Adolescents., Rachel H. Jacobs, Susan G. Silva, Mark A. Reinecke, John F. Curry, Golda S. Ginsburg, Christopher J. Kratochvil, John S. March

Journal Articles: Psychiatry

The effect of perfectionism on acute treatment outcomes was explored in a randomized controlled trial of 439 clinically depressed adolescents (12-17 years of age) enrolled in the Treatment for Adolescents with Depression Study (TADS) who received cognitive behavior therapy (CBT), fluoxetine, a combination of CBT and FLX, or pill placebo. Measures included the Children's Depression Rating Scale-Revised, the Suicidal Ideation Questionnaire-Grades 7-9, and the perfectionism subscale from the Dysfunctional Attitudes Scale (DAS). Predictor results indicate that adolescents with higher versus lower DAS perfectionism scores at baseline, regardless of treatment, continued to demonstrate elevated depression scores across the acute treatment period. …


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 …


Combination Of Vandetanib, Radiotherapy, And Irinotecan In The Lovo Human Colorectal Cancer Xenograft Model., Phyllis Wachsberger, Randy Burd, Anderson Ryan, Constantine Daskalakis, Adam P. Dicker Nov 2009

Combination Of Vandetanib, Radiotherapy, And Irinotecan In The Lovo Human Colorectal Cancer Xenograft Model., Phyllis Wachsberger, Randy Burd, Anderson Ryan, Constantine Daskalakis, Adam P. Dicker

Department of Radiation Oncology Faculty Papers

PURPOSE: The tumor growth kinetics of the human LoVo colorectal xenograft model was assessed in response to vandetanib, an orally available receptor tyrosine kinase inhibitor, radiotherapy (RT), or irinotecan (CPT-11), as single therapies and in combination. METHODS AND MATERIALS: LoVo cells were injected subcutaneously into the right hind limb (5 x 10(6) cells in 100 microL phosphate-buffered saline) of athymic NCR NUM mice and tumors were grown to a volume of 200-300 mm(3) before treatment. Vandetanib was administered at 50 mg/kg daily orally for 14 days starting on Day 1. RT was given as three fractions (3 x 3 Gy) …


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 …


Sox11 Expression Is Highly Specific For Mantle Cell Lymphoma And Identifies The Cyclin D1-Negative Subtype., Ana Mozos, Cristina Royo, Elena Hartmann, Daphne De Jong, Cristina Baró, Alexandra Valera, Kai Fu, Dennis D. Weisenburger, Jan Delabie, Shih-Sung Chuang, Elaine S. Jaffe, Carmen Ruiz-Marcellan, Sandeep Dave, Lisa Rimsza, Rita Braziel, Randy D. Gascoyne, Francisco Solé, Armando López-Guillermo, Dolors Colomer, Louis M. Staudt, Andreas Rosenwald, German Ott, Pedro Jares, Elias Campo Nov 2009

Sox11 Expression Is Highly Specific For Mantle Cell Lymphoma And Identifies The Cyclin D1-Negative Subtype., Ana Mozos, Cristina Royo, Elena Hartmann, Daphne De Jong, Cristina Baró, Alexandra Valera, Kai Fu, Dennis D. Weisenburger, Jan Delabie, Shih-Sung Chuang, Elaine S. Jaffe, Carmen Ruiz-Marcellan, Sandeep Dave, Lisa Rimsza, Rita Braziel, Randy D. Gascoyne, Francisco Solé, Armando López-Guillermo, Dolors Colomer, Louis M. Staudt, Andreas Rosenwald, German Ott, Pedro Jares, Elias Campo

Journal Articles: Pathology and Microbiology

BACKGROUND: Cyclin D1-negative mantle cell lymphoma is difficult to distinguish from other small B-cell lymphomas. The clinical and pathological characteristics of patients with this form of lymphoma have not been well defined. Overexpression of the transcription factor SOX11 has been observed in conventional mantle cell lymphoma. The aim of this study was to determine whether this gene is expressed in cyclin D1-negative mantle cell lymphoma and whether its detection may be useful to identify these tumors.

DESIGN AND METHODS: The microarray database of 238 mature B-cell neoplasms was re-examined. SOX11 protein expression was investigated immunohistochemically in 12 cases of cyclin …


Effect Of Interval To Definitive Breast Surgery On Clinical Presentation And Survival In Early-Stage Invasive Breast Cancer, Olga Vujovic, Edward Yu, Anil Cherian, Francisco Perera, A. Dar, Larry Stitt, A. Hammond Oct 2009

Effect Of Interval To Definitive Breast Surgery On Clinical Presentation And Survival In Early-Stage Invasive Breast Cancer, Olga Vujovic, Edward Yu, Anil Cherian, Francisco Perera, A. Dar, Larry Stitt, A. Hammond

Edward Yu

Purpose: To examine the effect of clinical presentation and interval to breast surgery on local recurrence and survival in early-stage breast cancer. Methods and materials: The data from 397 patients with Stage T1-T2N0 breast carcinoma treated with conservative surgery and breast radiotherapy between 1985 and 1992 were reviewed at the London Regional Cancer Program. The clinical presentation consisted of a mammogram finding or a palpable lump. The intervals from clinical presentation to definitive breast surgery used for analysis were 0-4, >4-12, and >12 weeks. The Kaplan-Meier estimates of the time to local recurrence, disease-free survival, and cause-specific survival were determined …


Accelerated Fractionation In Inoperable Non-Small Cell Lung Cancer. A Phase I/Ii Study, Edward Yu, Luis Souhami, Julio Guerra, Brenda Clark, Carole Gingras, Palma Fava Oct 2009

Accelerated Fractionation In Inoperable Non-Small Cell Lung Cancer. A Phase I/Ii Study, Edward Yu, Luis Souhami, Julio Guerra, Brenda Clark, Carole Gingras, Palma Fava

Edward Yu

Background: A prospective, single-treatment-arm, Phase I/II trial was performed to determine the tumor response to an accelerated regimen and assess the feasibility and toxic effects of this approach in patients with inoperable non-small cell lung cancer (NSCLC). Methods: Thirty-seven previously untreated patients with inoperable NSCLC who had no evidence of metastatic disease entered the study. All patients were able to walk and had disease that was measurable or assessable. Patients with palpable supraclavicular disease and weight loss were also eligible. Radiation therapy consisted of an altered fractionation regimen with a concomitant boost technique. The original lung volume received a dose …


Wnt Pathway Reprogramming During Human Embryonal Carcinoma Differentiation And Potential For Therapeutic Targeting, Grace E. Snow, Allison C. Kasper, Alexander M. Busch, Elisabeth Schwarz, Katherine E. Ewings, Thomas Bee, Michael J. Spinella, Ethan Dmitrovsky, Sarah J. Freemantle Oct 2009

Wnt Pathway Reprogramming During Human Embryonal Carcinoma Differentiation And Potential For Therapeutic Targeting, Grace E. Snow, Allison C. Kasper, Alexander M. Busch, Elisabeth Schwarz, Katherine E. Ewings, Thomas Bee, Michael J. Spinella, Ethan Dmitrovsky, Sarah J. Freemantle

Dartmouth Scholarship

Testicular germ cell tumors (TGCTs) are classified as seminonas or non-seminomas of which a major subset is embryonal carcinoma (EC) that can differentiate into diverse tissues. The pluripotent nature of human ECs resembles that of embryonic stem (ES) cells. Many Wnt signalling species are regulated during differentiation of TGCT-derived EC cells. This study comprehensively investigated expression profiles of Wnt signalling components regulated during induced differentiation of EC cells and explored the role of key components in maintaining pluripotency.


The Effects Of Field-Of-View And Patient Size On Ct Numbers From Cone-Beam Computed Tomography., Katrina Y T Seet, Arvand Barghi, Slav Yartsev, Jacob Van Dyk Oct 2009

The Effects Of Field-Of-View And Patient Size On Ct Numbers From Cone-Beam Computed Tomography., Katrina Y T Seet, Arvand Barghi, Slav Yartsev, Jacob Van Dyk

Oncology Publications

Cone-beam computed tomography (CBCT) is used for patient alignment before treatment and is ideal for use in adaptive radiotherapy to account for tumor shrinkage, organ deformation and weight loss. However, CBCT images are prone to artifacts such as streaking and cupping effects, reducing image quality and CT number accuracy. Our goal was to determine the optimum combination of cone-beam imaging options to increase the accuracy of image CT numbers. Several phantoms with and without inserts of known relative electron densities were imaged using the Varian on-board imaging system. It was found that CT numbers are most influenced by the selection …


Sour Ageusia In Two Individuals Implicates Ion Channels Of The Asic And Pkd Families In Human Sour Taste Perception At The Anterior Tongue., Taufiqul Huque, Beverly J Cowart, Luba Dankulich-Nagrudny, Edmund A Pribitkin, Douglas L Bayley, Andrew I Spielman, Roy S Feldman, Scott A Mackler, Joseph G Brand Oct 2009

Sour Ageusia In Two Individuals Implicates Ion Channels Of The Asic And Pkd Families In Human Sour Taste Perception At The Anterior Tongue., Taufiqul Huque, Beverly J Cowart, Luba Dankulich-Nagrudny, Edmund A Pribitkin, Douglas L Bayley, Andrew I Spielman, Roy S Feldman, Scott A Mackler, Joseph G Brand

Department of Otolaryngology - Head and Neck Surgery Faculty Papers

BACKGROUND: The perception of sour taste in humans is incompletely understood at the receptor cell level. We report here on two patients with an acquired sour ageusia. Each patient was unresponsive to sour stimuli, but both showed normal responses to bitter, sweet, and salty stimuli.

METHODS AND FINDINGS: Lingual fungiform papillae, containing taste cells, were obtained by biopsy from the two patients, and from three sour-normal individuals, and analyzed by RT-PCR. The following transcripts were undetectable in the patients, even after 50 cycles of amplification, but readily detectable in the sour-normal subjects: acid sensing ion channels (ASICs) 1a, 1beta, 2a, …


Antidepressant-Induced Mania With Concomitant Mood Stabilizer In Patients With Comorbid Substance Abuse And Bipolar Disorder., Daniel Z Lieberman, George Kolodner, Suena H Massey, Kenneth P Williams Oct 2009

Antidepressant-Induced Mania With Concomitant Mood Stabilizer In Patients With Comorbid Substance Abuse And Bipolar Disorder., Daniel Z Lieberman, George Kolodner, Suena H Massey, Kenneth P Williams

Psychiatry and Behavioral Sciences Faculty Publications

Antidepressant use in the treatment of bipolar disorder is controversial due the risks of affective switching and cycle acceleration. Studies of non-comorbid samples suggest that the risk can be mitigated with the use of a concomitant mood stabilizer. However, the majority of patients with bipolar disorder will experience a comorbid substance use disorder and little is known about these individuals because they are typically excluded from clinical trials. Patients entering a substance abuse treatment program who had a history of bipolar disorder were interviewed to evaluate antidepressant-induced affective switching with and without concomitant mood stabilizer. Among 41 comorbid participants, the …


Treatment Response In Depressed Adolescents With And Without Co-Morbid Attention-Deficit/Hyperactivity Disorder In The Treatment For Adolescents With Depression Study., Christopher J. Kratochvil, Diane E. May, Susan G. Silva, Vishal Madaan, Susan E. Puumala, John F. Curry, John Walkup, Hayden Kepley, Benedetto Vitiello, John S. March Oct 2009

Treatment Response In Depressed Adolescents With And Without Co-Morbid Attention-Deficit/Hyperactivity Disorder In The Treatment For Adolescents With Depression Study., Christopher J. Kratochvil, Diane E. May, Susan G. Silva, Vishal Madaan, Susan E. Puumala, John F. Curry, John Walkup, Hayden Kepley, Benedetto Vitiello, John S. March

Journal Articles: Psychiatry

OBJECTIVE: In the Treatment for Adolescents with Depression Study (TADS), fluoxetine (FLX) and the combination of fluoxetine with cognitive-behavioral therapy (COMB) had superior improvement trajectories compared to pill placebo (PBO), whereas cognitive-behavioral therapy (CBT) was not significantly different from PBO. Because attention-deficit/hyperactivity disorder (ADHD) and major depressive disorder (MDD) frequently co-exist, we examined whether ADHD moderated these outcomes in TADS.

METHOD: A total of 439 adolescents with MDD, 12-17 years old, were randomized to FLX, CBT, COMB, or PBO. Random coefficients regression models examined depression improvement in 377 depressed youths without ADHD and 62 with ADHD, including 20 who were …


Spontaneous Left Main Coronary Artery Dissection, Possibly Due To Cystic Medial Necrosis Found In The Internal Mammary Arteries., Hitoshi Hirose, Iwao Matsunaga, Waqas Anjun, Michael D Strong Oct 2009

Spontaneous Left Main Coronary Artery Dissection, Possibly Due To Cystic Medial Necrosis Found In The Internal Mammary Arteries., Hitoshi Hirose, Iwao Matsunaga, Waqas Anjun, Michael D Strong

Department of Surgery Faculty Papers

A 55-year-old male without previous medical history developed chest pain. Coronary catheterization showed left main coronary dissection. Coronary artery bypass grafting was performed using bilateral internal mammary arteries, which were very fragile. The specimens of the internal mammary arteries sent for pathology showed cystic medial necrosis.


Euroscore Predicts Postoperative Mortality, Certain Morbidities, And Recovery Time., Hitoshi Hirose, Hirotaka Inaba, Chiaki Noguchi, Keiichi Tambara, Taira Yamamoto, Motoshige Yamasaki, Keita Kikuchi, Atsushi Amano Oct 2009

Euroscore Predicts Postoperative Mortality, Certain Morbidities, And Recovery Time., Hitoshi Hirose, Hirotaka Inaba, Chiaki Noguchi, Keiichi Tambara, Taira Yamamoto, Motoshige Yamasaki, Keita Kikuchi, Atsushi Amano

Department of Surgery Faculty Papers

EuroSCORE (European System for Cardiac Operative Risk Evaluation) used for calculating the risk of the postoperative mortality rate for patients undergoing open-heart surgery may be able to predict postoperative complications as well. Consecutive cases of isolated on-pump coronary artery bypass grafting (CABG) (n=1552) performed between 1991 and 2006 at our hospital group were placed into a systematic database. Patients were stratified using additive EuroSCORE. Incidence of postoperative mortality, morbidity (bleeding, heart failure, mediastinitis, pneumonia, myocardial infarction, renal failure, and stroke), and recovery time (intubation time, ICU stay, and postoperative length of stay) was assessed in each EuroSCORE group. EuroSCORE was …


Sexuality And Persons With Down Syndrome. A Study From Brazil, Bruna Marques Bononi, Maria José Carvalho Sant'anna, André Chao Vasconcellos De Oliveira, Tadeu Silveira Renattini, Carla Franchi Pinto, Maria Lúcia Passarelli, Verônica Coates, Hatim A. Omar Sep 2009

Sexuality And Persons With Down Syndrome. A Study From Brazil, Bruna Marques Bononi, Maria José Carvalho Sant'anna, André Chao Vasconcellos De Oliveira, Tadeu Silveira Renattini, Carla Franchi Pinto, Maria Lúcia Passarelli, Verônica Coates, Hatim A. Omar

Pediatrics Faculty Publications

In recent years, important gains and changes have been observed in the life of teenagers with Down syndrome (DS) with increased inclusion into society. This review will discuss adolescence and sexuality in teenagers with DS from a descriptive study of 50 patients with DS between the ages of 10 and 20 years. The mean age was 13.5 years, 50% females; 86% went to school with 62.2% in school for over six years. Of the patients that attended school, 60% went to special education school and only 10% read and wrote correctly. In an evaluation of autonomy, 66% took showers, 78% …


Human Amniotic Fluid Stem Cells Do Not Differentiate Into Dopamine Neurons In Vitro Or After Transplantation In Vivo., Angela E Donaldson, Jingli Cai, Ming Yang, Lorraine Iacovitti Sep 2009

Human Amniotic Fluid Stem Cells Do Not Differentiate Into Dopamine Neurons In Vitro Or After Transplantation In Vivo., Angela E Donaldson, Jingli Cai, Ming Yang, Lorraine Iacovitti

Farber Institute for Neuroscience Faculty Papers

Although embryonic stem (ES) cells can generate dopamine (DA) neurons that are potentially useful as a cell replacement therapy in Parkinson's disease (PD), associated ethical and practical concerns remain major stumbling blocks to their eventual use in humans. In this study, we examined human amniotic fluid stem (hAFS) cells derived from routine amniocenteses for their potential to give rise to DA neurons in vitro and following transplantation into the 6-hydroxydopamine-lesioned rat brain. We show that undifferentiated hAFS cells constitutively expressed mRNAs and proteins typical of stem cells but also cell derivatives of all three germ layers, including neural progenitors/neurons (nestin, …


The Devil Is In The Third Year: A Longitudinal Study Of Erosion Of Empathy In Medical School., Mohammadreza Hojat, Michael J. Vergare, Kaye Maxwell, George Brainard, Steven K. Herrine, Gerald A. Isenberg, John Veloski, Joseph S. Gonnella Sep 2009

The Devil Is In The Third Year: A Longitudinal Study Of Erosion Of Empathy In Medical School., Mohammadreza Hojat, Michael J. Vergare, Kaye Maxwell, George Brainard, Steven K. Herrine, Gerald A. Isenberg, John Veloski, Joseph S. Gonnella

Department of Psychiatry and Human Behavior Faculty Papers

PURPOSE: This longitudinal study was designed to examine changes in medical students' empathy during medical school and to determine when the most significant changes occur.

METHOD: Four hundred fifty-six students who entered Jefferson Medical College in 2002 (n = 227) and 2004 (n = 229) completed the Jefferson Scale of Physician Empathy at five different times: at entry into medical school on orientation day and subsequently at the end of each academic year. Statistical analyses were performed for the entire cohort, as well as for the "matched" cohort (participants who identified themselves at all five test administrations) and the "unmatched" …


Dronedarone., Chinmay Patel, Gan-Xin Yan, Peter R Kowey Aug 2009

Dronedarone., Chinmay Patel, Gan-Xin Yan, Peter R Kowey

Department of Medical Genetics Faculty Papers

Amiodarone is the most effective antiarrhythmic drug for maintaining sinus rhythm for patients with atrial fibrillation. Extra-cardiac side effects have been a limiting factor, especially during chronic use, and may offset its benefits. Dronedarone is a noniodinated benzofuran derivative of amiodarone that has been developed for the treatment of atrial fibrillation and atrial flutter. Similar to amiodarone, dronedarone is a potent blocker of multiple ion currents, including the rapidly activating delayed-rectifier potassium current, the slowly activating delayed-rectifier potassium current, the inward rectifier potassium current, the acetylcholine activated potassium current, peak sodium current, and L-type calcium current, and exhibits antiadrenergic effects. …


Dynamic Mechanical (Brush) Allodynia In Cluster Headache: A Prevalence Study In A Tertiary Headache Clinic., Michael J Marmura, Muhammad Abbas, Avi Ashkenazi Aug 2009

Dynamic Mechanical (Brush) Allodynia In Cluster Headache: A Prevalence Study In A Tertiary Headache Clinic., Michael J Marmura, Muhammad Abbas, Avi Ashkenazi

Department of Jefferson Headache Center papers and presentations

Cutaneous allodynia (CA) has been described in migraine and has been related to treatment failure. There are little data about the incidence of CA in other primary headache syndromes such as cluster headache (CH). The objectives of this study are to evaluate the prevalence of dynamic mechanical (brush) allodynia (BA) in CH patients attending a tertiary headache clinic, and to assess its relation to disease characteristics. Adult patients with episodic or chronic CH were recruited. We obtained demographic data and data on disease characteristics through a structured questionnaire, and tested the patients for brush allodynia BA by applying a 4 …


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 …


The Time Has Come For Physicians To Take Notice: The Impact Of Psychosocial Stressors On The Heart., Vincent M. Figueredo, M.D. Aug 2009

The Time Has Come For Physicians To Take Notice: The Impact Of Psychosocial Stressors On The Heart., Vincent M. Figueredo, M.D.

Division of Cardiology Faculty Papers

A rapidly growing body of evidence supports a relationship between psychosocial factors and cardiovascular disease. In this article, a review of the epidemiologic and clinical research investigating this relationship concludes that psychosocial stressors can be both a cause and a consequence of cardiovascular disease events. Furthermore, recent data have shown that stress management might reduce future cardiac events in patients with cardiovascular disease. Unfortunately, the influence of psychosocial risk factors on cardiovascular disease remains underrecognized compared with traditional cardiac risk factors. Physicians and their associates should screen for psychosocial stressors and recognize potential symptoms. Consideration should be given to developing …


R992c (P.R1192c) Substitution In Collagen Ii Alters The Structure Of Mutant Molecules And Induces The Unfolded Protein Response., Hye Jin Chung, Deborah A. Jensen, Katarzyna Gawron, Andrzej Steplewski, Andrzej Fertala Jul 2009

R992c (P.R1192c) Substitution In Collagen Ii Alters The Structure Of Mutant Molecules And Induces The Unfolded Protein Response., Hye Jin Chung, Deborah A. Jensen, Katarzyna Gawron, Andrzej Steplewski, Andrzej Fertala

Department of Dermatology and Cutaneous Biology Faculty Papers

We investigated the molecular bases of spondyloepiphyseal dysplasia (SED) associated with the R992C (p.R1192C) substitution in collagen II. At the protein level, we analyzed the structure and integrity of mutant molecules, and at the cellular level, we specifically studied the effects of the presence of the R992C collagen II on the biological processes taking place in host cells. Our studies demonstrated that mutant collagen II molecules were characterized by altered electrophoretic mobility, relatively low thermostability, the presence of atypical disulfide bonds, and slow rates of secretion into the extracellular space. Analyses of cellular responses to the presence of the mutant …