Medicine and Health Sciences Commons^™

Endocytic Intermediates Involved With The Intracellular Trafficking Of A Fluorescent Cellular Prion Protein, Ac Magalhaes, Ja Silva, Vr Martins, Vf Prado, Ssg Ferguson, Mv Gomez, Rr Brentani, Mam Prado

Anatomy and Cell Biology Publications

We have investigated the intracellular traffic of PrPc, a glycosylphosphatidylinositol (GPI)-anchored protein implicated in spongiform encephalopathies. A fluorescent functional green fluorescent protein (GFP)-tagged version of PrPc is found at the cell surface and in intracellular compartments in SN56 cells. Confocal microscopy and organelle-specific markers suggest that the protein is found in both the Golgi and the recycling endosomal compartment. Perturbation of endocytosis with a dynamin I-K44A dominant-negative mutant altered the steady-state distribution of the GFP-PrPc, leading to the accumulation of fluorescence in unfissioned endocytic intermediates. These pre-endocytic intermediates did not seem to accumulate GFP-GPI, a minimum GPI-anchored protein, suggesting that …

Current Status Data: Review, Recent Developments And Open Problems, Nicholas P. Jewell, Mark J. Van Der Laan

U.C. Berkeley Division of Biostatistics Working Paper Series

Researchers working with survival data are by now adept at handling issues associated with incomplete data, particular those associated with various forms of censoring. An extreme form of interval censoring, known as current status observation, refers to situations where the only available information on a survival random variable T is whether or not T exceeds a random independent monitoring time C. This article contains a brief review of the extensive literature on the analysis of current status data, discussing the implications of response-based sampling on these methods. The majority of the paper introduces some recent extensions of these ideas to …

Ada News - 09/02/2002, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

Title Ix Turns 30, And It Brings The Gifts, Rick Burton

Sport Management - All Scholarship

No abstract provided.

Father Hunger: Explorations With Adults And Children (Book Review), Jerrold R. Brandell

Social Work Faculty Publications

Herzong, James M. (2001). Father Hunger: Explorations With Adults and Children. Hillsdale, NJ: The Analytic Press.

Avoiding West Nile Virus While Working, Kentucky Injury Prevention And Research Center

Kentucky Haz Alerts--Other

No abstract provided.

Flexor Tendon Repair And Rehabilitation: State Of The Art In 2002, Martin I. Boyer, James W. Strickland, Drew R. Engles, Kavi Sachar, Fraser J. Leversedge

Open Access Publications

No abstract provided.

Erisa Health Plans: Key Structural Variations And Their Effect On Liability, Phyllis Borzi

Health Policy and Management Faculty Publications

No abstract provided.

The Gamma-Subunit Of The Na-K-Atpase As A Potential Regulator Of Apical And Basolateral Na+-Pump Isozymes During Development Of Bovine Pre-Attachment Embryos., L C Barcroft, S E Gill, A J Watson

Obstetrics & Gynaecology Publications

Expression and activity of the Na-K-ATPase within the basolateral membrane domains of the trophectoderm epithelium provide the driving force for accumulation of Na(+) and Cl(-) across the nascent epithelium, mediating fluid movement into the forming blastocoel. Within the trophectoderm of the bovine blastocyst, multiple isozymes of the Na-K-ATPase are expressed. Immunolocalization has demonstrated that the alpha1-isozyme localizes within the basolateral membrane, whereas the alpha 3-isozyme localizes to the apical cell margins. Gene-specific RT-PCR and wholemount indirect immunofluorescence confocal laser scanning microscopy were used to examine expression of the Na-K-ATPase gamma-subunit (a regulatory subunit of the Na-K-ATPase) throughout development of bovine …

State Eligibility Rules Under Separate State Schip Programs--Implications For Children's Access To Health Care, Sara Rosenbaum, Anne Rossier Markus

Health Policy and Management Issue Briefs

This Policy Brief is the fourth in a series of reports1 issued by the George Washington University Center for Health Services Research and Policy that examine the design of separately-administered State Children’s Health Insurance Programs (SCHIP) that is, programs that operate directly under the authority of the federal SCHIP statute rather than expansions of state Medicaid programs.2 These Policy Briefs also consider the implications of states’ design choices for children’s access to health care.

Physician Empathy: Definition, Components, Measurement, And Relationship To Gender And Specialty, Mohammadreza Hojat, Joseph S. Gonnella, Thomas J. Nasca, Salvatore Mangione Md, Michael Vergare, Michael Magee

CRMEHC Faculty Papers

OBJECTIVE: There is a dearth of empirical research on physician empathy despite its mediating role in patient-physician relationships and clinical outcomes. This study was designed to investigate the components of physician empathy, its measurement properties, and group differences in empathy scores.

METHOD: A revised version of the Jefferson Scale of Physician Empathy (with 20 Likert-type items) was mailed to 1,007 physicians affiliated with the Jefferson Health System in the greater Philadelphia region; 704 (70%) responded. Construct validity, reliability of the empathy scale, and the differences on mean empathy scores by physicians’ gender and specialty were examined.

RESULTS: Three meaningful factors …

Evitando La Infección Del Nilo Occidental, Kentucky Injury Prevention And Research Center

Kentucky Haz Alerts--Other

No abstract provided.

Comparative Study--Efficacy, Safety And Compliance Of Intravenous Iron Sucrose And Intramuscular Iron Sorbitol In Iron Deficiency Anemia Of Pregnancy, A Wali, A Mushtaq, Nilofer

Department of Obstetrics & Gynaecology

Objective: (1) To determine an alternative iron supplementation with better efficacy, compliance & safety in treatment of iron deficiency anemia during pregnancy, (2) to reduce blood transfusion during pregnancy, labor and puerperium.
Material and Method: A prospective comparative study. A total number of 60 pregnant women with the gestational age of 12 - 34 weeks were included in the study who were suffering from iron deficiency anemia. They were divided in 3 groups (A, B and C). Group A (n15) received intravenous iron sucrose according to recommended dose containing 500 mg of iron sucrose for storage, in group B (n=20) …

Current Issues In Forensic Dna Profiling, Dan E. Krane

Biological Sciences Faculty Publications

No abstract provided.

Inside Unlv, Diane Russell

Inside UNLV

No abstract provided.

Role Of Imaging In The Evaluation Of Renal Trauma, M H. Ather, M A. Noor

Section of Urology

No abstract provided.

Informed Consent For Alzheimer's Disease Clinical Trials: A Survey Of Clinical Investigators, Peter J. Whitehouse

Faculty Scholarship

No abstract provided.

Synthesis And Characterization Of Hydroxyapatite-Collagen Biocomposite Materials, Vuk Uskoković, Nenad Ignjatović, Nadejda Petranović

Pharmacy Faculty Articles and Research

Hydroxyapatite-collagen composite is a prosperous biomaterial in reconstructive surgery for the reparation of defects within human hard tissue. Within this research, three-dimensional blocks of HAp/collagen composite biomaterial were synthesized by homogenizing the HAp/collagen mixture by cold and hot (T=60oC) pressing (P=49 MPa). The changes in the system were followed by using thermal analysis (DSC & TGA), FT-IR spectroscopy and scanning electron microscopy (SEM). The identification and kinetic analysis of appearing phase transition were done. FT-IR spectrum of the biocomposite shows that neither cold nor hot pressing had significant influence on the individual components of the composite. SEM of the fracture …

Defective Cd19-Dependent Signaling In B-1a And B-1b B Lymphocyte Subpopulations., Goutam Sen, Hsin-Jung Wu, Gabriel Bikah, Chandrasekar Venkataraman, Darrell A Robertson, E Charles Snow, Subbarao Bondada

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Peritoneal and pleural cavities in mice and humans contain a unique population of B-lymphocytes called B-1 cells that are defective in B cell antigen receptor (BCR) signaling but have an increased propensity to produce autoantibodies. Several molecules such as Btk, Vav, and CD19 known to be important for BCR signaling have been shown to be critical for the development of B-1 cells from undefined precursors. Here we demonstrate that B-1 cell unresponsiveness to BCR cross-linking is in part due to defective signaling through CD19, a molecule known to modulate signaling thresholds in B cells. The defective CD19 signaling is manifested …

Histiocytosis X Of The Vulva, R M. Rizvi, C Nasreen, N Jafri

Department of Obstetrics & Gynaecology

No abstract provided.

Mycobacterium Smegmatis L-Alanine Dehydrogenase (Ald) Is Required For Proficient Utilization Of Alanine As A Sole Nitrogen Source And Sustained Anaerobic Growth, Zhengyu Feng, Nancy E. Caceres, Gautam Sarath, Raul G. Barletta

School of Veterinary and Biomedical Sciences: Faculty Publications

NAD(H)-dependent L-alanine dehydrogenase (EC 1.4.1.1) (Ald) catalyzes the oxidative deamination of L-alanine and the reductive amination of pyruvate. To assess the physiological role of Ald in Mycobacterium smegmatis, we cloned the ald gene, identified its promoter, determined the protein expression levels, and analyzed the combined effects of nutrient supplementation, oxygen availability, and growth stage on enzyme activity. High Ald activities were observed in cells grown in the presence of L- or D-alanine regardless of the oxygen availability and growth stage. In exponentially growing cells under aerobic conditions, supplementation with alanine resulted in a 25- to 50-fold increase in the …

Mycobacterium Smegmatis L-Alanine Dehydrogenase (Ald) Is Required For Proficient Utilization Of Alanine As A Sole Nitrogen Source And Sustained Anaerobic Growth, Zhengyu Feng, Nancy E. Caceres, Gautam Sarath, Raul G. Barletta

School of Veterinary and Biomedical Sciences: Faculty Publications

NAD(H)-dependent L-alanine dehydrogenase (EC 1.4.1.1) (Ald) catalyzes the oxidative deamination of L-alanine and the reductive amination of pyruvate. To assess the physiological role of Ald in Mycobacterium smegmatis, we cloned the ald gene, identified its promoter, determined the protein expression levels, and analyzed the combined effects of nutrient supplementation, oxygen availability, and growth stage on enzyme activity. High Ald activities were observed in cells grown in the presence of L- or D-alanine regardless of the oxygen availability and growth stage. In exponentially growing cells under aerobic conditions, supplementation with alanine resulted in a 25- to 50-fold increase in the …

Ventilatory Phenotypes Among Four Strains Of Adult Rats., Matthew Hodges, Hubert Forster, Paula E. Papanek, Melinda R. Dwinell, Genevieve E. Hogan

Exercise Science Faculty Research and Publications

Our purpose in this study was to identify different ventilatory phenotypes among four different strains of rats. We examined 114 rats from three in-house, inbred strains and one outbred strain: Brown Norway (BN;n = 26), Dahl salt-sensitive (n = 24), Fawn-hooded Hypertensive (FHH: n = 27), and outbred Sprague-Dawley rats (SD; n = 37). We measured eupneic (room air) breathing and the ventilatory responses to hypoxia (12% O₂-88% N₂), hypercapnia (7% CO₂), and two levels of submaximal exercise. Primary strain differences were between BN and the other strains. BN rats had a …

Jefferson Alumni Bulletin – Volume 51, Number 4, September 2002

The Bulletin (formerly the Jefferson Medical College Alumni Bulletin)

Jefferson Alumni Bulletin – Volume 51, Number 4, September 2002 Dean's Message by Dean Thomas J. Nasca ’75, page 4 Achievement Award Winner Charles Francis ’65, page 6 Jim Bagian ’77 Receives an Honorary Doctorate, page 7 Reunions and Annual Giving, page 12 Class notes attached as supplemental file.

Transitional Cell Carcinomas Of The Urinary Bladder. A Histopathological Study, Z. Ahmed, S. Muzaffer, M. Khan, N. Kayani, Shahid Pervez, A. S. Husseini, S H. Hasan

Department of Pathology and Laboratory Medicine

Objective:

To determine the histological grading and muscle invasion in Transitional Cell Carcinomas of the Urinary Bladder; and to evaluate whether any correlation exists between tumour grade and muscle invasion.

Method:

A Retrospective study of all consecutive cases of Transitional Cell Carcinomas of the Urinary Bladder diagnosed at Aga Khan University Hospital between 1st Jan 1997 and 31st Dec 2000.

Results:

This study included 495 cases of Transitional Cell Carcinoma of the Urinary Bladder. M: F ratio was 4:1. Ages of patients ranged from 30 years to 87 years. Mean age in males was 59.1 years and in females 58.8 …

Ischemic Stroke In Young Adults Of South Asia, A A. Razzaq, B A. Khan, S M. Baig

Section of Neurology

Objective: To study the risk factors, etiology and management of ischemic stroke in young adults in a South Asian population.

Methods: Retrospective study conducted at a large tertiary hospital in Karachi. One hundred and eighteen patients between fifteen and forty-five years admitted over a five year period with a diagnosis of ischemic infarct constituted the study population. The study variables included the full clinical spectrum, spanning historical, laboratory, radiological and outcome parameters.

Results: Forty-three percent of patients were hypertensive and 30% were diabetic. The combination of diabetes and hypertension was found in 19.5% of patients, intra-cranial and carotid …

Clinical And Epidemiological Correlates Of Genotypes Within The Mycobacterium Avium Complex Defined By Restriction And Sequence Analysis Of Hsp65, Sandra C. Smole, Fionnuala Mcaleese, Jutamas Ngampasutadol, C. Fordham Von Reyn, Robert D. Arbeit

Dartmouth Scholarship

Species identification of isolates of the Mycobacterium avium complex (MAC) remains a difficult task. Although M. avium and Mycobacterium intracellulare can be identified with expensive, commercially available probes, many MAC isolates remain unresolved, including those representing Mycobacterium lentiflavum as well as other potentially undefined species. PCR restriction analysis (PRA) of the hsp65 gene has been proposed as a rapid and inexpensive approach. We applied PRA to 278 MAC isolates, including 126 from blood of human immunodeficiency virus (HIV)-infected patients, 59 from sputum of HIV-negative patients with chronic obstructive pulmonary disease, 88 from environmental sources, and 5 pulmonary isolates from …

Coupling Of Termination, 3′ Processing, And Mrna Export, C. M. Hammell, Stefan Gross, Daniel Zenklusen, Catherine V. Heath, Francoise Stutz, Claire Moore, C. N. Cole

Dartmouth Scholarship

In a screen to identify genes required for mRNA export in Saccharomyces cerevisiae, we isolated an allele of poly(A) polymerase (PAP1) and novel alleles encoding several other 3′ processing factors. Many newly isolated and some previously described mutants (rna14-48, rna14-49, rna14-64, rna15-58, and pcf11-1 strains) are defective in polymerase II (Pol II) termination but, interestingly, retain the ability to polyadenylate these improperly processed transcripts at the nonpermissive temperature. Deletion of the cis-acting sequences required to couple 3′ processing and termination also …

Economic And Health Outcomes Of Capsule Endoscopy: Opportunities For Improved Management Of The Diagnostic Process For Obscure Gastrointestinal Bleeding, Neil I. Goldfarb, Amy Phillips, Mitchell Conn, Blair S. Lewis, David B. Nash

College of Population Health Faculty Papers

The estimated annual incidence of gastrointestinal bleeding in the United States is approximately 100 episodes per 100,000 persons, resulting in 300,000 hospitalizations annually. Diagnostic tools such as radiologic studies and endoscopic examination often fail to identify a source of bleeding, resulting in a cycle of repetitive testing over months or even years. Costs associated with the diagnostic process, and with interim treatment for anemia and other symptoms, can be significant. The diagnostic process also takes a toll on the patient, in terms of worry, pain, and discomfort. Capsule endoscopy, a technology that received FDA clearance in August, 2001, consists of …

Strong Partnerships Make Good Partners: Insights About Physician-Hospital Relationships From A Study Of Physician Executives, Marc A. Bard, Michael L. Buehler, Andrew L. Epstein, David B. Nash, John P. O'Connor

College of Population Health Faculty Papers

While physicians are likely to respond favorably in concept to hospital-based disease management and other clinical programs, they are less likely to accept their structural and functional characteristics. Because of their role at the hospital-physician interface, hospital physician executives are often tasked with implementing such programs. Given the challenges involved, a deeper understanding of the role of these executives in building the hospital-physician relationship will therefore be an important contribution. To this end, we surveyed senior physician executives at hospitals and health systems (n = 326), to assess their view of the hospital-physician relationship at their institutions, focusing especially on …