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Articles 1321 - 1350 of 2032

Full-Text Articles in Medicine and Health Sciences

Growth Inhibition Of Human Hepatocellular Carcinoma Cells By Overexpression Of G Protein-Coupled Receptor Kinase 2, Zhengyu Wei, Reginald Hurtt, Cataldo Doria Aug 2011

Growth Inhibition Of Human Hepatocellular Carcinoma Cells By Overexpression Of G Protein-Coupled Receptor Kinase 2, Zhengyu Wei, Reginald Hurtt, Cataldo Doria

Department of Surgery Faculty Papers

Summary:

In this study, we investigated a novel approach for HCC treatment by inducing overexpression of GRK2 in human HCC cells. We found that overexpression of GRK2 through recombinant adenovirus transduction inhibits the growth of human HCC cells. BrdU incorporation assay showed that the growth inhibition caused by elevated GRK2 level was due tot he reduced cell proliferation but not apoptosis. To examine the anti-proliferative function of increased GRK2 level, we performed cell cycle analysis using propidium iodide staining. We found that the proliferation suppression was associated with G2/M phase cell cycle arrest by the wild type GRK2 but not …


Assessment Of Adherence To Guidelines For Hepatocellular Carcinoma Screening In Hiv/Hcv Coinfected Patients, Jonathan M. Fenkel, Md, Victor J. Navarro, Md Aug 2011

Assessment Of Adherence To Guidelines For Hepatocellular Carcinoma Screening In Hiv/Hcv Coinfected Patients, Jonathan M. Fenkel, Md, Victor J. Navarro, Md

Division of Gastroenterology and Hepatology Faculty Papers

Conclusions:

1. Self-reported adherence with published guidelines for HCC screening is poor among primary providers for HIV/HCV coinfected patients, including HIV specialists and University-based providers.

2. Unnecessary imaging is also frequently ordered on non-cirrhotics, particularly by University-based providers.

3. Improved adherence to guidelines is needed among primary providers as over 50% of HCC's may be missed, and many patients many not be referred for subspecialty GI or Liver care, where screening practices may differ.


Rip1-Dependent And Independent Effects Of Necrostatin-1 In Necrosis And T Cell Activation., Youngsik Cho, Thomas Mcquade, Haibing Zhang, Jianke Zhang, Francis Ka-Ming Chan Aug 2011

Rip1-Dependent And Independent Effects Of Necrostatin-1 In Necrosis And T Cell Activation., Youngsik Cho, Thomas Mcquade, Haibing Zhang, Jianke Zhang, Francis Ka-Ming Chan

Department of Microbiology and Immunology Faculty Papers

BACKGROUND: Programmed necrosis/necroptosis is an emerging form of cell death that plays important roles in mammalian development and the immune system. The pro-necrotic kinases in the receptor interacting protein (RIP) family are crucial mediators of programmed necrosis. Recent advances in necrosis research have been greatly aided by the identification of chemical inhibitors that block programmed necrosis. Necrostatin-1 (Nec-1) and its derivatives were previously shown to target the pro-necrotic kinase RIP1/RIPK1. The protective effect conferred by Nec-1 and its derivatives in many experimental model systems was often attributed to the inhibition of RIP1 function.

METHODOLOGY/PRINCIPAL FINDINGS: We compared the effect of …


Utilizing Livers From Donors Older Than 65: A Single Center Experience, Krishnaraj Mahendraraj, Jorge H. Castro, Sean Devitt, Chad Gorn, Cataldo Doria, Adam Frank, Warren Maley, Carlo G. Ramirez Aug 2011

Utilizing Livers From Donors Older Than 65: A Single Center Experience, Krishnaraj Mahendraraj, Jorge H. Castro, Sean Devitt, Chad Gorn, Cataldo Doria, Adam Frank, Warren Maley, Carlo G. Ramirez

Department of Surgery Faculty Papers

Conclusions:

Use of liver grafts from older donors presents similar survival outcomes as grafts from younger donor age. Therefore, it offers a viable option to expand the donor pool and increase number of OLTs.

However, there is higher incidence of retransplantation due to primary graft non-function, and longer hospital length of stay observed in the older donor age group.

Further studies using larger patient populations are needed to validate our results.


Performance Of Colorectal Cancer Screening Steps In Primary Care, Salini Mohanty, Mph, Mona Sarfaty, Md, Mph, Faafp, Randa Sifri, Md Aug 2011

Performance Of Colorectal Cancer Screening Steps In Primary Care, Salini Mohanty, Mph, Mona Sarfaty, Md, Mph, Faafp, Randa Sifri, Md

Department of Family & Community Medicine Presentations and Grand Rounds

Discussion:

This analysis revealed the differences in which physicians in primary care complete CRC screening steps. The approach and completion of screening steps varied greatly among practices.

There was a correlation between the quantitative data and the qualitative data. The analysis from both methodologies produced similar results and supports each other's assessment.

All of the practices analyzed possessed one of the essential elements (a physician recommendation) which is the foundation for increased screening. All of the practices have the potential to expand upon this foundation in order to ensure that all eligible patients are approached and screened for CRC.

The …


Classification And Treatment Of Proximal Humerus Fractures: Inter-Observer Reliability And Agreement Across Imaging Modalities And Experience., Abtin Foroohar, Rick Tosti, John M Richmond, John P Gaughan, Asif M Ilyas Jul 2011

Classification And Treatment Of Proximal Humerus Fractures: Inter-Observer Reliability And Agreement Across Imaging Modalities And Experience., Abtin Foroohar, Rick Tosti, John M Richmond, John P Gaughan, Asif M Ilyas

Rothman Institute Papers

SUMMARY: Proximal humerus fractures (PHF) are common injuries, but previous studies have documented poor inter-observer reliability in fracture classification. This disparity has been attributed to multiple variables including poor imaging studies and inadequate surgeon experience. The purpose of this study is to evaluate whether inter-observer agreement can be improved with the application of multiple imaging modalities including X-ray, CT, and 3D CT reconstructions, stratified by physician experience, for both classification and treatment of PHFs.

METHODS: Inter-observer agreement was measured for classification and treatment of PHFs. A total of sixteen fractures were imaged by plain X-ray (scapular AP and lateral), CT …


Letters To The Editor Jul 2011

Letters To The Editor

Jefferson Journal of Psychiatry

We welcome all letters to the editor, and encourage authors to reply. Input from residents and faculty on ideas presented in the Journal create the arena for discussion and dialogue which is the ultimate purpose of this undertaking.


Therapeutic Guitar-An Alternative Approach To The Treatment Of A Difficult Patient, Michael Buxbaum, Md Jul 2011

Therapeutic Guitar-An Alternative Approach To The Treatment Of A Difficult Patient, Michael Buxbaum, Md

Jefferson Journal of Psychiatry

The case described in this article is one where an experimental technique was introduced largely because of the therapist's dissatisfaction with the patient's progress. Despite the likelihood of being criticized, I feel compelled to write about this patient. The progress he has made is beyond my expectations, which were admittedly minimal at the outset.


Misuses Of Computers By Adolescents, Henry A. Doenlen, M.D. Jul 2011

Misuses Of Computers By Adolescents, Henry A. Doenlen, M.D.

Jefferson Journal of Psychiatry

One subject that has been a topic of much recent publicity and concern has been that of computer misuse. Teenage computer programmers gaining entry into the systems of universities, hospitals and businesses have caused the most concern . The duplication of copyrighted programs and information has also been reported to cause loss of considerable money. There seems to be a subpopulation of people who spend considerable time working with computers. These individuals may do so to the exclusion of other aspects of life such as human interaction . This paper will present both my observations of this behavior and my …


The Treatment Of A Borderline Patient Complicated By Involvement With A Charismatic Religious Cult: A Case Report, Mark Miller, Md Jul 2011

The Treatment Of A Borderline Patient Complicated By Involvement With A Charismatic Religious Cult: A Case Report, Mark Miller, Md

Jefferson Journal of Psychiatry

Introduction

Although much has been written about cults in recent years, many questions remain. Do cults recruit subjects by brainw ashing them or do individuals gravitate to cults to fulfill unmet needs? This paper will review some essential points of cult phenomena and discuss the treatment of one patient who was involved in a charismatic religious cult .


Possible Synergistic Action Between Carbamazepine And Lithium Carbonate In The Treatment Of A Manic Patient., John Matt Dorn, M.D. Jul 2011

Possible Synergistic Action Between Carbamazepine And Lithium Carbonate In The Treatment Of A Manic Patient., John Matt Dorn, M.D.

Jefferson Journal of Psychiatry

Introduction

Carbamazepine has been proven to be efficacious in some patients with affective disorders, notably those who have not responded well to lithium carbonate or neuroleptics (1,2,3) . For those who have responded poorly to either regimen, however, there have been no effective pharmacotherapies until recently, when case reports have suggested a possible synergistic action between lithium carbonate and carbamazepine (4,5,6). The following case report supports this hypothesis.


The Use Of Carbamazepine (Tegretol) In Psychiatry And Its Association To Kindling, Temporal Lobe Epilepsy And Psychopathology, James Stanch, M.D. Jul 2011

The Use Of Carbamazepine (Tegretol) In Psychiatry And Its Association To Kindling, Temporal Lobe Epilepsy And Psychopathology, James Stanch, M.D.

Jefferson Journal of Psychiatry

The recent theory of kindling may help to link neurophysiologic, neurotransmitter and neuroanatomic mechanisms important in understanding the neurology of behavior. Limbic kindling is of interest in developing models of epilepsy, psychosis, learning and memory (l -5). Kindling might explain the late development of psychopathology.

This paper will first define kindling and demonstrate how kindling offers a model within which to view more prolonged behavioral deviations as neurophysiological processes. The use of carbamazepine and its association to kindling, temporal lobe dysfunction and psychopathology will be discussed .


Discussion Of The Paper By David A. Scola, M.D. On “The Hemispheric Specialization Of The Human Brain And Its Application To Psychoanalytic Principles”, Howard Field, M.D., Paul J. Fink, M.D., Thomas Swirsky-Sacchetti, Ph.D. Jul 2011

Discussion Of The Paper By David A. Scola, M.D. On “The Hemispheric Specialization Of The Human Brain And Its Application To Psychoanalytic Principles”, Howard Field, M.D., Paul J. Fink, M.D., Thomas Swirsky-Sacchetti, Ph.D.

Jefferson Journal of Psychiatry

Dr. Scola proposes a bold and far-reaching synthesis of psychoanalytic theory, developmental neurobiology and neurophysiology of behavior. Freud found this task so frustrating in 1895 that he renounced neurology in favor of a purely psychologic approach (or so Freud claimed; Frank Sulloway sees it differently). Hypotheses that unconscious mental life is situated in the right cerebrum and that defense mechanisms are related to neuroanatomic connections are intriguing. The presentation does not include evidence which contravenes these theories. Sperry presented some evidence that the right hemisphere is self-aware and self-evaluative (I). One great problem in all cross disciplinary studies is the …


The Hemispheric Specialization Of The Human Brain And Its Application To Psychoanalytic Principles, David A. Scola, M.D. Jul 2011

The Hemispheric Specialization Of The Human Brain And Its Application To Psychoanalytic Principles, David A. Scola, M.D.

Jefferson Journal of Psychiatry

Volumes of research have been accumulated over the past decade concerning hemispheric specialization of the human brain. Likewise, over the past century, psychoanalysts have painstakingly unraveled through their clinical observation many of the mysteries of intrapsychic functions. Yet little has been written concerning attempts to integrate these seemingly divergent viewpoints.

It was Freud's hope that a neural basis for his clinical observations and psychological explanations of the human mind would eventually be established . This was not possible in his day, however, so this idea was gradually abandoned. With the advent of computers and high technology, perhaps it is time …


Faculty Advisor's Column, Harvey J. Schwartz, Md Jul 2011

Faculty Advisor's Column, Harvey J. Schwartz, Md

Jefferson Journal of Psychiatry

This second issue of our resident journal enlarges our educational effort s in two important ways. The first is obvious . As you can see, we have published this forum in an attractive new form at. This is highlighted by the new cover designed by Dr. Jeffrey Sarnoff. The second piece of progress is our enlarged audience. In addition to our own Jefferson faculty and residents, the Journal is now being distributed to psychiatrists throughout Pennsylvania. For both of these improvements in form we are indebted to the Mead Johnson Pharmaceutical Division for their generous sponsorship.


Got Worms?: Planning And Evaluation Of A Culturally Appropriate Health Education Pilot Program For The Control Of Soil-Transmitted Helminth Infections In Rwandan Village Children, Pier Hart Jul 2011

Got Worms?: Planning And Evaluation Of A Culturally Appropriate Health Education Pilot Program For The Control Of Soil-Transmitted Helminth Infections In Rwandan Village Children, Pier Hart

Master of Public Health Capstone Presentations

Infections with parasitic intestinal worms known as soil-transmitted helminthes (STH) are endemic in most poor countries in Africa, Asia and Latin America. In Rwanda, the prevalence of helminth infections among school-age children was found to be nearly 70%. Chronic STH infections are associated with malnutrition and anemia, which cause physical and cognitive developmental problems. These morbidities negatively affect educational attainment and vocational productivity and thereby perpetuate the cycle of poverty in affected communities. Control of STH requires both regular deworming treatments and changes in health behaviors relevant to transmission, including personal hygiene and sanitation practices. In Rwanda, a nationwide program …


The Need For A Sugar-Sweetened Beverage Tax In Philadelphia – Policy Analysis, J M. O'Dell Jul 2011

The Need For A Sugar-Sweetened Beverage Tax In Philadelphia – Policy Analysis, J M. O'Dell

Master of Public Health Capstone Presentations

The goal of this study was to analyze sugar-sweetened beverage tax policy as one strategy to fight America’s obesity epidemic. Obesity is an enormous problem that plagues individuals worldwide. The prevalence of obesity is high in this country, exceeding 25% in 33 states. In Pennsylvania in 2009, 27.7% of adults were labeled as obese. Additionally, there are many more Philadelphians who are overweight or obese (900,000) than who are at a healthy weight (600,000). Obesity is extremely complex and has several causes. One cause of obesity and the main concern of this study is the consumption of sugar-sweetened beverages. Sugar-sweetened …


Assessing Nutrition Knowledge, Skill And Attitudes In Adolescent Girls, Tatyana Jean Jul 2011

Assessing Nutrition Knowledge, Skill And Attitudes In Adolescent Girls, Tatyana Jean

Master of Public Health Capstone Presentations

There is still much to be understood about the nutrition habits of adolescents who are just beginning to break away from familial habits and developing individual identities. The African American community in particular, is known to experience disproportionate amounts of overweight and obesity resulting in chronic diseases such as diabetes and hypertension. This study used quantitative and qualitative measures to assess the nutrition skills, knowledge, and attitudesof African American girls aged 14-17. After data analysis, it was found that African American adolescent girls had high body image and self esteem but poor nutrition skill and knowledge. Body image and weight …


Understanding The Warburg Effect And The Prognostic Value Of Stromal Caveolin-1 As A Marker Of A Lethal Tumor Microenvironment., Federica Sotgia, Ubaldo E Martinez-Outschoorn, Stephanos Pavlides, Anthony Howell, Richard G. Pestell, Michael P Lisanti Jul 2011

Understanding The Warburg Effect And The Prognostic Value Of Stromal Caveolin-1 As A Marker Of A Lethal Tumor Microenvironment., Federica Sotgia, Ubaldo E Martinez-Outschoorn, Stephanos Pavlides, Anthony Howell, Richard G. Pestell, Michael P Lisanti

Department of Stem Cell Biology and Regenerative Medicine Faculty Papers & Presentations

Cancer cells show a broad spectrum of bioenergetic states, with some cells using aerobic glycolysis while others rely on oxidative phosphorylation as their main source of energy. In addition, there is mounting evidence that metabolic coupling occurs in aggressive tumors, between epithelial cancer cells and the stromal compartment, and between well-oxygenated and hypoxic compartments. We recently showed that oxidative stress in the tumor stroma, due to aerobic glycolysis and mitochondrial dysfunction, is important for cancer cell mutagenesis and tumor progression. More specifically , increased autophagy/mitophagy in the tumor stroma drives a form of parasitic epithelial-stromal metabolic coupling. These findings explain …


Ceacam1 Separates Graft-Versus-Host-Disease From Graft-Versus-Tumor Activity After Experimental Allogeneic Bone Marrow Transplantation., Sydney X Lu, Lucy W Kappel, Anne-Marie Charbonneau-Allard, Renée Atallah, Amanda M Holland, Claire Turbide, Vanessa M Hubbard, Jimmy A Rotolo, Marsinay Smith, David Suh, Christopher King, Uttam K Rao, Nury Yim, Johanne L Bautista, Robert R Jenq, Olaf Penack, Il-Kang Na, Chen Liu, George Murphy, Onder Alpdogan, Richard S Blumberg, Fernando Macian, Kathryn V Holmes, Nicole Beauchemin, Marcel R M Van Den Brink Jul 2011

Ceacam1 Separates Graft-Versus-Host-Disease From Graft-Versus-Tumor Activity After Experimental Allogeneic Bone Marrow Transplantation., Sydney X Lu, Lucy W Kappel, Anne-Marie Charbonneau-Allard, Renée Atallah, Amanda M Holland, Claire Turbide, Vanessa M Hubbard, Jimmy A Rotolo, Marsinay Smith, David Suh, Christopher King, Uttam K Rao, Nury Yim, Johanne L Bautista, Robert R Jenq, Olaf Penack, Il-Kang Na, Chen Liu, George Murphy, Onder Alpdogan, Richard S Blumberg, Fernando Macian, Kathryn V Holmes, Nicole Beauchemin, Marcel R M Van Den Brink

Department of Medical Oncology Faculty Papers

BACKGROUND: Allogeneic bone marrow transplantation (allo-BMT) is a potentially curative therapy for a variety of hematologic diseases, but benefits, including graft-versus-tumor (GVT) activity are limited by graft-versus-host-disease (GVHD). Carcinoembryonic antigen related cell adhesion molecule 1 (Ceacam1) is a transmembrane glycoprotein found on epithelium, T cells, and many tumors. It regulates a variety of physiologic and pathological processes such as tumor biology, leukocyte activation, and energy homeostasis. Previous studies suggest that Ceacam1 negatively regulates inflammation in inflammatory bowel disease models.

METHODS: We studied Ceacam1 as a regulator of GVHD and GVT after allogeneic bone marrow transplantation (allo-BMT) in mouse models. In …


Recruitment And Retention Of Diverse Populations In Antiretroviral Clinical Trials: Practical Applications From The Gender, Race And Clinical Experience Study., Ron Falcon, Dawn Averitt Bridge, Judith Currier, Kathleen Squires, Debbie Hagins, Deborah Schaible, Robert Ryan, Joseph Mrus Jul 2011

Recruitment And Retention Of Diverse Populations In Antiretroviral Clinical Trials: Practical Applications From The Gender, Race And Clinical Experience Study., Ron Falcon, Dawn Averitt Bridge, Judith Currier, Kathleen Squires, Debbie Hagins, Deborah Schaible, Robert Ryan, Joseph Mrus

Division of Infectious Diseases and Environmental Medicine Faculty Papers

BACKGROUND: Women, particularly women of color, remain underrepresented in antiretroviral (ARV) clinical trials. To evaluate sex-based differences in darunavir/ritonavir-based therapy, the Gender, Race And Clinical Experience (GRACE) study was designed to enroll and retain a high proportion of women representative of the racial/ethnic demographics of women with HIV/AIDS in the United States. The recruitment and retention strategies used in GRACE are described in this article.

METHODS: Recruitment and retention strategies targeting women included selecting study sites that focused on women, involving community consultants, site-specific enrollment plans, access to other ARV drugs, study branding, site and patient toolkits, targeted public relations, …


Psychological And Cognitive Determinants Of Vision Function In Age-Related Macular Degeneration., Barry W. Rovner, Robin J Casten, Robert W Massof, Benjamin E Leiby, William S Tasman Jul 2011

Psychological And Cognitive Determinants Of Vision Function In Age-Related Macular Degeneration., Barry W. Rovner, Robin J Casten, Robert W Massof, Benjamin E Leiby, William S Tasman

Department of Neurology Faculty Papers

OBJECTIVE: To investigate the effect of coping strategies, depression, physical health, and cognition on National Eye Institute Visual Function Questionnaire scores obtained at baseline in a sample of older patients with age-related macular degeneration (AMD) enrolled in the Improving Function in AMD Trial, a randomized controlled clinical trial that compares the efficacy of problem-solving therapy with that of supportive therapy to improve vision function in patients with AMD.

METHODS: Baseline evaluation of 241 older outpatients with advanced AMD who were enrolled in a clinical trial testing the efficacy of a behavioral intervention to improve vision function. Vision function was characterized …


Jefferson Alumni Bulletin – Volume 60, Number 3, Summer 2011 Jul 2011

Jefferson Alumni Bulletin – Volume 60, Number 3, Summer 2011

The Bulletin (formerly the Jefferson Medical College Alumni Bulletin)

Features:

  • Jefferson Graduate Climbs High
  • Robotic Surgery Prompts Converts and Critics
  • Feelling Ill? There's an App for That


Bapcap2-1 Does Preoperative Aspirin Improve Outcomes In Cardiac Surgery Patients?, Jian-Zhong Sun, L. Cao, H. Liu, W. Sun, S Silvestry, J. Diehl Jun 2011

Bapcap2-1 Does Preoperative Aspirin Improve Outcomes In Cardiac Surgery Patients?, Jian-Zhong Sun, L. Cao, H. Liu, W. Sun, S Silvestry, J. Diehl

Department of Anesthesiology Faculty Papers

Best Abstracts - Runner-up Session 2 presented at Euroanaesthesia 2011 in the Netherlands.

Background and Goal of Study: The effects of preoperative aspirin on major cardiocerebral and renal outcomes and mortality remain uncertain.


International Evidence On Medical Spending., Robert D. Lieberthal, Phd Jun 2011

International Evidence On Medical Spending., Robert D. Lieberthal, Phd

College of Population Health Lectures, Presentations, Workshops

Presented for the Casualty Actuarial Society 2011 Seminar on Reinsurance, Philadelphia, PA.

Handouts are also available at: http://www.casact.org/education/reinsure/2011/handouts/C17-Lieberthal.pdf

the audio is available at: http://www.casact.org/education/reinsure/2011/audio/C17.mp3

and it is associated with the paper: http://jdc.jefferson.edu/healthpolicyfaculty/45/

23 PowerPoint slides.


Role And Mechanism Of Arsenic In Regulating Angiogenesis., Ling-Zhi Liu, Yue Jiang, Richard L Carpenter, Yi Jing, Stephen C Peiper, Bing-Hua Jiang Jun 2011

Role And Mechanism Of Arsenic In Regulating Angiogenesis., Ling-Zhi Liu, Yue Jiang, Richard L Carpenter, Yi Jing, Stephen C Peiper, Bing-Hua Jiang

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Arsenic is a wide spread carcinogen associated with several kinds of cancers including skin, lung, bladder, and liver cancers. Lung is one of the major targets of arsenic exposure. Angiogenesis is the pivotal process during carcinogenesis and chronic pulmonary diseases, but the role and mechanism of arsenic in regulating angiogenesis remain to be elucidated. In this study we show that short time exposure of arsenic induces angiogenesis in both human immortalized lung epithelial cells BEAS-2B and adenocarcinoma cells A549. To study the molecular mechanism of arsenic-inducing angiogenesis, we find that arsenic induces reactive oxygen species (ROS) generation, which activates AKT …


Evaluation Of The Use Of Patient-Focused Simulation For Student Assessment In A Surgery Clerkship., Gerald A Isenberg, Katherine W Berg, Judith A Veloski, Dale D Berg, J J. Veloski, Charles Yeo Jun 2011

Evaluation Of The Use Of Patient-Focused Simulation For Student Assessment In A Surgery Clerkship., Gerald A Isenberg, Katherine W Berg, Judith A Veloski, Dale D Berg, J J. Veloski, Charles Yeo

Department of Surgery Faculty Papers

BACKGROUND: The purpose of this study was to evaluate the use of simulated patients in conjunction with anatomic and tissue task-training models to assess skills.

METHODS: Faculty reviewed the objectives of the clerkship to identify skills to be acquired. Three cases were developed related to rectal examination, suturing, and inserting intravenous lines and nasogastric tubes. Student scores were based on their ability to gather data from simulated patients and perform procedures on simulation models.

RESULTS: A total of 670 students were assessed between 2006 and 2009. Alpha reliability coefficients were .97 for Communication/Interpersonal Skills, .71 for Procedures, and .58 for …


Endothelial Differentiation Of Adipose-Derived Stem Cells From Elderly Patients With Cardiovascular Disease., Ping Zhang, Neil Moudgill, Eric Hager, Nicolas Tarola, Christopher Dimatteo, Stephen Mcilhenny, Thomas Tulenko, Paul J Dimuzio Jun 2011

Endothelial Differentiation Of Adipose-Derived Stem Cells From Elderly Patients With Cardiovascular Disease., Ping Zhang, Neil Moudgill, Eric Hager, Nicolas Tarola, Christopher Dimatteo, Stephen Mcilhenny, Thomas Tulenko, Paul J Dimuzio

Department of Surgery Faculty Papers

Adipose-derived stem cells (ASCs) possess significant therapeutic potential for tissue engineering and regeneration. This study investigates the endothelial differentiation and functional capacity of ASCs isolated from elderly patients. Isolation of ASCs from 53 patients (50-89 years) revealed that advanced age or comorbidity did not negatively impact stem cell harvest; rather, higher numbers were observed in older donors (>70 years) than in younger. ASCs cultured in endothelial growth medium-2 for up to 3 weeks formed cords upon Matrigel and demonstrated acetylated-low-density lipoprotein and lectin uptake. Further stimulation with vascular endothelial growth factor and shear stress upregulated endothelial cell-specific markers (CD31, …


Mitochondrial Oxidative Stress Drives Tumor Progression And Metastasis: Should We Use Antioxidants As A Key Component Of Cancer Treatment And Prevention?, Federica Sotgia, Ubaldo E Martinez-Outschoorn, Michael P Lisanti May 2011

Mitochondrial Oxidative Stress Drives Tumor Progression And Metastasis: Should We Use Antioxidants As A Key Component Of Cancer Treatment And Prevention?, Federica Sotgia, Ubaldo E Martinez-Outschoorn, Michael P Lisanti

Department of Stem Cell Biology and Regenerative Medicine Faculty Papers & Presentations

The functional role of oxidative stress in cancer pathogenesis has long been a hotly debated topic. A study published this month in BMC Cancer by Goh et al., directly addresses this issue by using a molecular genetic approach, via an established mouse animal model of human breast cancer. More specifically, alleviation of mitochondrial oxidative stress, via transgenic over-expression of catalase (an anti-oxidant enzyme) targeted to mitochondria, was sufficient to lower tumor grade (from high-to-low) and to dramatically reduce metastatic tumor burden by >12-fold. Here, we discuss these new findings and place them in the context of several other recent studies …


A Man With An Elevated Hemoglobin, Paula Sorokanich Md May 2011

A Man With An Elevated Hemoglobin, Paula Sorokanich Md

The Medicine Forum

A 50-year-old male with history of severe gout and
degenerative joint disease presented to his PCP for a
physical. On routine blood work he was found to have
an elevated hemoglobin/hematocrit. This was confirmed
on repeat analysis and work-up was pursued.