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Switches, Excitable Responses And Oscillations In The Ring1b/Bmi1 Ubiquitination System., Lan K Nguyen, Javier Muñoz-García, Helene Maccario, Aaron Ciechanover, Walter Kolch, Boris N Kholodenko

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

In an active, self-ubiquitinated state, the Ring1B ligase monoubiquitinates histone H2A playing a critical role in Polycomb-mediated gene silencing. Following ubiquitination by external ligases, Ring1B is targeted for proteosomal degradation. Using biochemical data and computational modeling, we show that the Ring1B ligase can exhibit abrupt switches, overshoot transitions and self-perpetuating oscillations between its distinct ubiquitination and activity states. These different Ring1B states display canonical or multiply branched, atypical polyubiquitin chains and involve association with the Polycomb-group protein Bmi1. Bistable switches and oscillations may lead to all-or-none histone H2A monoubiquitination rates and result in discrete periods of gene (in)activity. Switches, overshoots …

Switches, Excitable Responses And Oscillations In The Ring1b/Bmi1 Ubiquitination System., Lan K Nguyen, Javier Muñoz-García, Helene Maccario, Aaron Ciechanover, Walter Kolch, Boris N Kholodenko

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

In an active, self-ubiquitinated state, the Ring1B ligase monoubiquitinates histone H2A playing a critical role in Polycomb-mediated gene silencing. Following ubiquitination by external ligases, Ring1B is targeted for proteosomal degradation. Using biochemical data and computational modeling, we show that the Ring1B ligase can exhibit abrupt switches, overshoot transitions and self-perpetuating oscillations between its distinct ubiquitination and activity states. These different Ring1B states display canonical or multiply branched, atypical polyubiquitin chains and involve association with the Polycomb-group protein Bmi1. Bistable switches and oscillations may lead to all-or-none histone H2A monoubiquitination rates and result in discrete periods of gene (in)activity. Switches, overshoots …

An Evaluation Of Neuroplasticity And Behavior After Deep Brain Stimulation Of The Nucleus Accumbens In An Animal Model Of Depression., Steven M Falowski, Ashwini Sharan, Beverly A S Reyes, Carl Sikkema, Patricia Szot, Elisabeth J Van Bockstaele

Department of Neurosurgery Faculty Papers

BACKGROUND: Recent interest has demonstrated the nucleus accumbens (NAcc) as a potential target for the treatment of depression with deep brain stimulation (DBS).

OBJECTIVE: To demonstrate that DBS of the NAcc is an effective treatment modality for depression and that chemical and structural changes associated with these behavioral changes are markers of neuroplasticity.

METHODS: A deep brain stimulator was placed in the NAcc of male Wistar-Kyoto rats. Groups were divided into sham (no stimulation), intermittent (3 h/d for 2 weeks), or continuous (constant stimulation for 2 weeks). Exploratory and anxietylike behaviors were evaluated with the open-field test before and after …

Vaccine-Preventable Diseases And Foreign-Born Populations, Marc Altshuler, Md, Giang Nguyen, Md

Department of Family & Community Medicine Faculty Papers

Foreign-born individuals account for over 12% of the U.S. population, according to the most recent census data. Since many vaccine-preventable outbreaks in the U.S. have been correlated with disease importation, Congress has mandated vaccinations for numerous immigrant populations. It is essential for primary care physicians to be knowledgeable on the unique immunization-related needs of foreign-born individuals, to recognize some of the cultural and linguistic challenges that immigrants have accessing healthcare, and remember to use each medical encounter as an opportunity to provide necessary vaccinations.

Promoting Your Institutional Repository On And Off Campus, Daniel G. Kipnis, Msi

Academic Commons and Scott Memorial Library Staff Papers and Presentations

Webinar presentation for Association for Library Collections and Technical Services.

Navigating The Digital Divide: A Teaching-Learning Initiative With The Ipad2, Beth Ann Swan, Kathryn Shaffer, Kellie Smith, Anthony J. Frisby, Mary Hanson-Zalot

College of Nursing Faculty Papers & Presentations

Background/ Rationale: It has been established that Interprofessional Education (IPE) offers a solution to foster teamwork and improve patient care and should be implemented early in professional role development. Thomas Jefferson University has been providing IPE to interprofessional healthcare students for over 5 years. A long term strategic goal was identified to “create innovative learning environments that support interprofessional education including state-of-the-art technologies”. In actualizing this goal, the curriculum was enhanced with technology supported collaborative learning techniques to assist in group processing and reflection. Combining traditional IPE activities with technology supported components incorporated the advantages of both delivery methods, …

Weekly Schedule For Aisr Scott 307 Computer Classroom

Learning Resources

No abstract provided.

Molecular Diagnostics In Periprosthetic Joint Infection., Javad Parvizi, Lesley Walinchus, Bahar Adeli

Department of Orthopaedic Surgery Faculty Papers

Periprosthetic joint infection (PJI) is a significant and costly challenge to the orthopedic community. The lack of a gold standard for diagnosis remains the biggest obstacle in the detection and subsequent treatment of PJI. Molecular markers in the serum and joint fluid aspirate hold immense promise to enhance the development of a firm diagnostic criterion. The primary goal is one marker with high sensitivity and specificity. Here, we review our current research efforts in the field of molecular markers: C-reactive protein, erythrocyte sedimentation rate, white blood cells, and leukocyte esterase. Each marker has been studied to determine its sensitivity, specificity, …

Food Matters: Clinical Education And Advocacy Training

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Jsph Announces The Center For Value In Healthcare

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Personalized Medicine: Transforming The Future Of Healthcare - Health Policy Forum- June 9, 2011

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Joseph S. Gonnella, Md Scholarship Awarded To Jonathan Musyt

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Improving Health Literacy In The Cardiovascular Population: A Regional Approach In Southeastern Pennsylvania, Patricia Yurchick Rn,Mba,Cphq

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Jsph Faculty Profile - Spotlight On Diane J. Abatemarco, Phd, Msw

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Jsph Summer Seminar - The Next Phase

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

A Teacher's Perspective On Online Graduate Education, Harm J. Scherpbier Md

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

President Robert L. Barchi, Md, Phd, Tju 2011 Commencement Speech

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Medical-Legal Partnerships As A Value-Add To Patient-Centered Medical Homes, Martha Romney Rn,Ms,Jd,Mph

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

Health Policy Newsletter Fall 2011 Download Full Pdf

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.

About The Authors

Jefferson Journal of Psychiatry

About the Authors, Jefferson Journal of Psychiatry, Volume 11, Number 1, 1993.

The Abc's Of Schizophrenia, Mary Donovan, Md

Jefferson Journal of Psychiatry

SCHIZOPHRENIA GENESIS, THE ORIGINS OF MADNESS

Irving I. Gottesman

W.H. Freeman and Company, New York, 1991

296 pages, $14.95, paperback

A New Voice On Personality Disorders, Dan Block, M.D.

Jefferson Journal of Psychiatry

BROKEN STRUCTURES: SEVERE PERSONALITY DISORDERS AND THEIR TREATMENT

Salman Akhtar, M.D.

Jason Aronson, Inc., 1991

So Much Success, So Little Joy, Robert Neil Gerstman, D.O.

Jefferson Journal of Psychiatry

GOOD GRIEF: THE STORY OF CHARLES M. SCHULTZ

Rheta Grimsley Johnson

Pharos Books, New York 1989

$17.95, 256 pgs.

Perspectives On Psychotherapy: In Our Evolving Profession, Susan M. Hall, M.D.

Jefferson Journal of Psychiatry

MOMENTS OF ENGAGEMENT: INTIMATE PSYCHOTHERAPY IN A TECHNOLOGICAL AGE

Peter D. Kramer , M.D.

W.W. Norton & Co.1989

Hardcover, 260 pp., $24.95

Letters To The Editor

Jefferson Journal of Psychiatry

Letters to the Editor. Jefferson Journal of Psychiatry, Volume 11, Number 1, 1993.

A Resident Initiated Prite Review Course: Trials And Tribulations, David W. Metzler, M.S., M.D., Daniel L. Kinsey, M.D., Lesley R. Dickson, M.D., Mark Hyatt, M.D.

Jefferson Journal of Psychiatry

The experience of developing a review course to study for the Psychiatry Resident's In-Training Exam (PRITE) is discussed. Residents in our program felt that the review course was useful with respect to the following: studying for the PRITE; future study for National Boards; and learning of new material.

The Psychiatry Resident's In-Training Exam (PRITE) was developed in 1979 as a mechanism to assess the knowledge base of psychiatric residents in a standardized format (1,2,3). The exam was originally designed to simulate the American Board of Psychiatry and Neurology (ABPN) examination, PART I, and has gained widespread acceptance despite questions about …

Thalamic Tumor Presenting As Major Depression And Headache, Robert Jay Claire, M.D.

Jefferson Journal of Psychiatry

We report the case of a 39 year old male who presented with Major Depression, headache, and apathy. Within six weeks of his initial presentation the patient died from a "Central Herniation Syndrome" after biopsy of a left thalamic lesion. The statistics of medical problems presenting as psychiatric disorders as well as recent literature on personality changes associated with thalamic infiltration are reviewed.

It is recognized that from 33-80% of inpatient psychiatric patients have concurrent medical disease. A large proportion of these are unrecognized prior to psychiatric hospitalization (1). In 1983, Martin clearly stated that "psychiatric symptoms are often the …

Five Hours With Frank: A Case Study, Mark E. Kunik, M.D.

Jefferson Journal of Psychiatry

This manuscript explores a resident's dilemma when performing a psychiatric evaluation within the context of releasing a convicted rapist.

A Case Report Of Folie'a Deux: Husband-And-Wife, Ryan M. Nishihara, Craig T. Nakamura

Jefferson Journal of Psychiatry

Shared paranoid disorder is a relatively rare psychiatric disorder in which paranoid delusions are transferred from one individual to one or more other susceptible person(s) in close association. Folie a deux describes a shared paranoid disorder involving two people and is characterized by a complex dependant relationship between the involved individuals. Provided there is no additional underlying psychopathology, there is a good prognosis for the submissive partner. Here we present a case report and discussion off folie a deux involving a husband and wife. Although folie a deux is a relatively uncommon disorder, it is important to recognize such cases …

Clozapine-Induced Seizures And Eeg Changes: A Case Report And Discussion Of Clinical Management, Jeffrey Daly, M.D., Stephen Salloway, M.D., M.S.

Jefferson Journal of Psychiatry

Clorapine is an atypical antipsychotic agent associated with a higher frequency of seizures than standard neuroleptics. In addition, clozapine causes epileptiform abnormalities in the EEG in up to 72% of patients. A patient who developed a generalized seizure shortly after beginning clozapine treatment and the patient's EEG findings are presented. The neuropharmacology of dozapine and the management of clozapine-induced seizures and EEG abnormalities are discussed.