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2006

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Articles 61 - 90 of 102

Full-Text Articles in Diseases

The Zucker Rat As A Model Of Obesity-Hypertension, Ryan Morrison Jan 2006

The Zucker Rat As A Model Of Obesity-Hypertension, Ryan Morrison

Theses, Dissertations and Capstones

Hypertension is a serious health problem that affects approximately 1 in 4 American adults. Most cases are diagnosed as essential hypertension, meaning that the exact cause is unknown. In most patients, however, excess weight is a major contributory factor to the development of essential hypertension. The role of obesity in promoting hypertension is now well documented and has become the foundation for an entire field of research known alternately as obesity-hypertension, obesity-induced hypertension, or obesity-associated hypertension. In this field, rapid advances are being made in our understanding of how obesity and hypertension are linked. A plethora of related risk factors, …


Diet Affects Immunologically Relevant Gene Expression In Brains Of Toxoplasma Gondii Infected, Lydia Kullman Jan 2006

Diet Affects Immunologically Relevant Gene Expression In Brains Of Toxoplasma Gondii Infected, Lydia Kullman

Mahurin Honors College Capstone Experience/Thesis Projects

No abstract provided.


New Vaccines Effective Against Rotavirus, Aldemaro Romero Jr., Jeannette M. Loutsch Jan 2006

New Vaccines Effective Against Rotavirus, Aldemaro Romero Jr., Jeannette M. Loutsch

Publications and Research

No abstract provided.


Relief Of Symptoms, Side Effects, And Psychological Distress Through Use Of Complementary And Alternative Medicine In Women With Breast Cancer, Cecile A. Lengacher, Mary P. Bennett, Kevin E. Kip, Lois Gonzalez, Paul Jacobsen, Charles E. Cox Jan 2006

Relief Of Symptoms, Side Effects, And Psychological Distress Through Use Of Complementary And Alternative Medicine In Women With Breast Cancer, Cecile A. Lengacher, Mary P. Bennett, Kevin E. Kip, Lois Gonzalez, Paul Jacobsen, Charles E. Cox

Nursing Faculty Publications

No abstract provided.


Reducing Aids-Related Stigma And Discrimination In Indian Hospitals, Vaishali Sharma Mahendra, Laelia Gilborn, Bitra George, Luke Samson, Rupa Mudoi, Sarita Jadav, Indrani Gupta, Shalini Bharat, Celine Daly Jan 2006

Reducing Aids-Related Stigma And Discrimination In Indian Hospitals, Vaishali Sharma Mahendra, Laelia Gilborn, Bitra George, Luke Samson, Rupa Mudoi, Sarita Jadav, Indrani Gupta, Shalini Bharat, Celine Daly

HIV and AIDS

People living with HIV/AIDS in India, as elsewhere, face stigma and discrimination in a variety of contexts. Research in India has shown that stigma and discrimination against HIV-positive people and those perceived to be infected are common in hospitals and act as barriers to seeking and receiving critical treatment and care services. Recognizing the need to move beyond documentation of the problem, three New Delhi hospitals; SHARAN, an Indian NGO; and the Horizons program, with support from the National AIDS Control Organisation (NACO), carried out an operations research project to develop and test responses to hospital-based stigma and discrimination against …


Promoting More Gender-Equitable Norms And Behaviors Among Young Men As An Hiv/Aids Prevention Strategy, Julie Pulerwitz, Gary Barker, Marcio Segundo, Marcos Nascimento Jan 2006

Promoting More Gender-Equitable Norms And Behaviors Among Young Men As An Hiv/Aids Prevention Strategy, Julie Pulerwitz, Gary Barker, Marcio Segundo, Marcos Nascimento

HIV and AIDS

The Population Council and the Promundo Institute studied the effectiveness of interventions in Brazil designed to change the attitudes of young men in relation to gender norms and reducing the risk of contracting HIV/STIs. One conclusion of the study was the recognition of the importance of engaging young people (men and women) in the issue of gender relations and the risks of HIV contamination. The results of the study indicate that addressing inequitable gender norms, particularly those that define masculinity, can be an important element of HIV prevention strategies. These findings suggest that group education interventions can successfully influence young …


Abc Messages For Hiv Prevention In Kenya: Clarity And Confusion, Barriers And Facilitators, Julie Pulerwitz, Tiffany Lillie, Louis Apicella, Ann P. Mccauley, Tobey C. Nelson, Simon Ochieng, Peter Mwarogo, Karusa Kiragu, Edward Kunyanga Jan 2006

Abc Messages For Hiv Prevention In Kenya: Clarity And Confusion, Barriers And Facilitators, Julie Pulerwitz, Tiffany Lillie, Louis Apicella, Ann P. Mccauley, Tobey C. Nelson, Simon Ochieng, Peter Mwarogo, Karusa Kiragu, Edward Kunyanga

HIV and AIDS

The Horizons Program and FHI/IMPACT developed a collaborative research study to explore how adults and youth in Kenya define and perceive the ABC (abstinence/being faithful/consistent condom use) terms and behaviors. Additional objectives of the study were to identify attitudes and norms around the ABC behaviors that influence perceptions of them, and the role of important actors in transmitting messages about them. Findings highlight potential challenges in promoting each of the ABC behaviors, as well as some positive elements that can be built upon when developing programs. HIV prevention programs that incorporate ABC messages—both in Kenya and elsewhere—should consider a number …


Examining Adherence And Sexual Behavior Among Patients On Antiretroviral Therapy In India, Avina Sarna, Indrani Gupta, Sanjay Pujari, A.K. Sengar, Rajiv Garg, Ellen Weiss Jan 2006

Examining Adherence And Sexual Behavior Among Patients On Antiretroviral Therapy In India, Avina Sarna, Indrani Gupta, Sanjay Pujari, A.K. Sengar, Rajiv Garg, Ellen Weiss

HIV and AIDS

With increased availability of ART, HIV-positive individuals are living healthier lives and continuing or resuming sexual activity. However, optimism related to ART’s success in slowing disease progression, reducing viral load, and improving health status may lead to more risky sexual practices and a possible increase in transmission of infections. To determining the sexual behavior of HIV-positive persons on ART, the Horizons program, in collaboration with research partners in Delhi and Pune, conducted a study to assess current levels of adherence to ART among a sample of people living with HIV/AIDS, identify the factors that influence their adherence to treatment, and …


Orphans And Vulnerable Youth In Bulawayo, Zimbabwe: An Exploratory Study Of Psychosocial Well-Being And Psychosocial Support, Laelia Gilborn, Louis Apicella, Jonathan Brakarsh, Linda Dube, Kyle Jemison, Mark Kluckow, Tricia Smith, Leslie M. Snider Jan 2006

Orphans And Vulnerable Youth In Bulawayo, Zimbabwe: An Exploratory Study Of Psychosocial Well-Being And Psychosocial Support, Laelia Gilborn, Louis Apicella, Jonathan Brakarsh, Linda Dube, Kyle Jemison, Mark Kluckow, Tricia Smith, Leslie M. Snider

HIV and AIDS

This Population Council Horizons report presents findings from an exploratory study by the Regional Psychosocial Support Initiative and Catholic Relief Services’ Support to Replicable, Innovative Village/Community-level Efforts Program of vulnerable youth living in and around Bulawayo, Zimbabwe. It describes their demographic characteristics, exposure to stress and trauma, and psychosocial well-being. The report also highlights the relationships between psychosocial well-being outcomes and exposure to stress and trauma, and the differences in psychosocial well-being between males and females, orphaned and nonorphaned youth, and younger and older adolescents. The report concludes with program and research implications.


Broncho Alveolar Carcinoma (B.A.C.), Ahmed N. Abbasi, Muhammad Irfan, Syed Arsalan Raza Jan 2006

Broncho Alveolar Carcinoma (B.A.C.), Ahmed N. Abbasi, Muhammad Irfan, Syed Arsalan Raza

Section of Pulmonary & Critical Care

No abstract provided.


A Case-Control Study Of Farming And Prostate Cancer In African-American And Caucasian Men, Tamra E. Meyer, Ann L. Coker, Maureen Sanderson, Elaine Symanski Jan 2006

A Case-Control Study Of Farming And Prostate Cancer In African-American And Caucasian Men, Tamra E. Meyer, Ann L. Coker, Maureen Sanderson, Elaine Symanski

CRVAW Faculty Journal Articles

Objective: To determine the risk of prostate cancer associated with farming by duration, recency and specific activities among African-Americans and Caucasians.

Methods: This population-based case–control study had information on farming-related activities for 405 incident prostate cancer cases and 392 controls matched for age, race and region in South Carolina, USA, from 1999 to 2001. Cases with histologically confirmed, primary invasive prostate cancer who were aged between 65 and 79 years were ascertained through the South Carolina Central Cancer Registry. Appropriately matched controls were identified from the Health Care Financing Administration Medicare Beneficiary File. Data were collected using computer-assisted telephone interviewing, …


Cervical Cancer Survival By Socioeconomic Status, Race/Ethnicity, And Place Of Residence In Texas, 1995–2001, Katherine S. Eggleston, Ann L. Coker, Melanie Williams, Guillermo Tortolero-Luna, Jeanne B. Martin, Susan R. Tortolero Jan 2006

Cervical Cancer Survival By Socioeconomic Status, Race/Ethnicity, And Place Of Residence In Texas, 1995–2001, Katherine S. Eggleston, Ann L. Coker, Melanie Williams, Guillermo Tortolero-Luna, Jeanne B. Martin, Susan R. Tortolero

CRVAW Faculty Journal Articles

Objective: The current study explored whether socioeconomic status (SES), race/ethnicity, and rural residence may be linked to poorer cervical cancer survival by stage at diagnosis.

Methods: Data from 7,237 cervical cancer cases reported to the Texas Cancer Registry from 1995–2001 were used to address the association by stage at diagnosis and cause of death. Zip code-level census data were used to classify residence and to develop a composite variable for SES. Multilevel Cox proportional hazards modeling was used to estimate hazard ratios

(HR) and 95% confidence intervals (CI).

Results: Late stage at diagnosis was a strong predictor …


Cost Prevention Of Hiv, Jerika Lam Jan 2006

Cost Prevention Of Hiv, Jerika Lam

Pharmacy Faculty Articles and Research

"Since the introduction of highly active antiretroviral therapy (HAART) in the late 1990s, management of patients with human immunodeficiency virus (HIV) infection has improved where they are living longer and with fewer incidences of opportunistic illnesses. Furthermore, significant progress has been made in the understanding of the disease, the ability to quantify viral load and correlate with clinical outcomes, genotypic and phenotypic resistance assays designed to assess viral susceptibility, and a heightened awareness and appreciation of the importance of treatment adherence to ensure virologic suppression.' In spite of the benefits that HIV-infected patients may have acquired in terms of more …


Optimal Therapy Regimens For Treatment-Resistant Mutations Of Hiv, Weiqing Gu, Helen Moore Jan 2006

Optimal Therapy Regimens For Treatment-Resistant Mutations Of Hiv, Weiqing Gu, Helen Moore

All HMC Faculty Publications and Research

In this paper, we use control theory to determine optimal treatment regimens for HIV patients, taking into account treatment-resistant mutations of the virus. We perform optimal control analysis on a model developed previously for the dynamics of HIV with strains of various resistance to treatment (Moore and Gu, 2005). This model incorporates three types of resistance to treatments: strains that are not responsive to protease inhibitors, strains not responsive to reverse transcriptase inhibitors, and strains not responsive to either of these treatments. We solve for the optimal treatment regimens analytically and numerically. We find parameter regimes for which optimal dosing …


Exploring Current Practices In Pediatric Arv Rollout And Integration With Early Childhood Programs In South Africa: A Rapid Situation Analysis, Desiree Michaels, Brian Eley, Lewis Ndhlovu, Naomi Rutenberg Jan 2006

Exploring Current Practices In Pediatric Arv Rollout And Integration With Early Childhood Programs In South Africa: A Rapid Situation Analysis, Desiree Michaels, Brian Eley, Lewis Ndhlovu, Naomi Rutenberg

HIV and AIDS

This Horizons program report describes the status of pediatric HIV treatment in selected sites in South Africa, identifies gaps in service delivery, and proposes recommendations for strengthening services and expanding children’s access to treatment. The study provides much needed information on critical issues of pediatric HIV care, especially regarding health service and contextual issues surrounding the expansion of access to treatment for HIV-infected children, and key factors that facilitate sustainability of treatment by young children. The aims of the study were to identify successful program strategies in pediatric HIV treatment in South Africa and to determine priority knowledge gaps to …


Phloroglucinol In Irritable Bowel Syndrome, Wasim Jafri, Javed Yakoob, Sajjad Hussain, Nadim Jafri, Muhammad Islam Jan 2006

Phloroglucinol In Irritable Bowel Syndrome, Wasim Jafri, Javed Yakoob, Sajjad Hussain, Nadim Jafri, Muhammad Islam

Section of Gastroenterology

Objective: To determine the efficacy and tolerability of phloroglucinol, an antispasmodic agent in the treatment of Irritable Bowel Syndrome (IBS). Methods: It was an open label (quasi interventional) study. One hundred patients coming to the gastroenterology clinics of Aga Khan University Hospital with IBS as defined by the Rome II criteria were enrolled between February 2004 and September 2004 to participate in the trial and were treated as outpatients. Phloroglucinol (Himont) 50mg orally three times daily was given for two months. Symptoms were assessed before and during treatment using a questionnaire. Results: One hundred patients were enrolled in the study. …


The Science Of Prevention Strategies, Rachel Abrishami, Jeffery A. Goad Jan 2006

The Science Of Prevention Strategies, Rachel Abrishami, Jeffery A. Goad

Pharmacy Faculty Articles and Research

"From newborn screening for Phenylkentonurea (PKU) and the birth dose of Hepatitis B vaccine to prostate and breast cancer screening and pneumococcal immunization for older adults, the science of health maintenance is multi-tiered and spans the lifetime of an individual. Primary, secondary, and tertiary prevention strategies are used in concert with each other to enable healthcare professionals and their patients to sustain and improve the quality of life."


Contagious Discourse: Germs, Mass Media, And The Shaping Of Reality, Amy Richardson Ballagh Jan 2006

Contagious Discourse: Germs, Mass Media, And The Shaping Of Reality, Amy Richardson Ballagh

College of Graduate Studies: Theses & Dissertations

Over the past two decades, mass media coverage of certain infectious diseases has become more abundant. News reports of many of these contagious illnesses invoke fear in many people, such as Ebola and pandemic influenza; multidrug-resistant strains of infectious diseases, such as tuberculosis; and agents of biological warfare, a concern that is now at the forefront with many Americans due to the most recent act of bioterrorism on American soil following the events of September 11th. This dissertation focuses on the American public's perception of infectious diseases, particularly as portrayed in the cultural science curriculum. I examine the cyclic nature …


Resistance Exercise In Men Receiving Androgen Deprivation Therapy For Prostate Cancer, Daniel A. Galvao Jan 2006

Resistance Exercise In Men Receiving Androgen Deprivation Therapy For Prostate Cancer, Daniel A. Galvao

Theses: Doctorates and Masters

This thesis encompasses two literature reviews (chapter 2 & 3) and two experimental chapters (4 and 5) examining the available literature on exercise and cancer, resistance training and its anabolic responses in older men and women, the side effects of Androgen Deprivation Therapy (ADT) for prostate cancer and finally, the role of resistance exercise as a clinical intervention to counteract such changes as an adjuvant therapy.


Networks And Narratives: An Exploration Of Their Relationship And Potential For Understanding The Actual Experiences Of Women With Hiv/Aids, Purity N. Irungu Jan 2006

Networks And Narratives: An Exploration Of Their Relationship And Potential For Understanding The Actual Experiences Of Women With Hiv/Aids, Purity N. Irungu

Theses: Doctorates and Masters

This study set out to examine literature relating to social network theory and narrative theory in order to explore how their potential connection could be used in future to understand and improve the actual life-experiences of women infected by the Human Immunodeficiency Virus (HIV) and Acquired Immune Deficiency Syndrome (AIDS). The thesis was done entirely by library research using secondary sources but is original in its intent. It includes a critical examination of some of the work of earlier researchers, including Lockhart's (2000) anthropological study of the social construction of `risk' of AIDS in urban Tanzania. Much previous research studied …


Neuroleptic Malignant Syndrome: Need For Early Diagnosis And Therapy, Humaira M. Khan, Nadir A. Syed, Mughis Sheerani, Bhojo Khealani, Ayeesha Kamal, Mohammad Wasay Jan 2006

Neuroleptic Malignant Syndrome: Need For Early Diagnosis And Therapy, Humaira M. Khan, Nadir A. Syed, Mughis Sheerani, Bhojo Khealani, Ayeesha Kamal, Mohammad Wasay

Department of Medicine

Background: Neuroleptic Malignant Syndrome (NMS) is a medical entity that has received little attention in the clinical settings in Pakistan. The aim of our study was to review the predisposing factors, outcomes and characteristics of in-patients diagnosed with NMS.

Methods: We performed a retrospective chart review of all cases (age > 15 years) at a tertiary care center in Karachi between January 01, 1990 and November 30, 2001, diagnosed using ICD 10 coding. Data was collected using a standardized data entry form and statistical analysis was performed using Epi Info 6, Version 6.02.

Results: There were a total of 20 patients …


Initial Evaluation Of Novel Preparations Of Bordetella Avium By Determination Of Antibody Response Titers, Joel Gallagher, Stacy Higgins, Luc Berghman, Billy Hargis Jan 2006

Initial Evaluation Of Novel Preparations Of Bordetella Avium By Determination Of Antibody Response Titers, Joel Gallagher, Stacy Higgins, Luc Berghman, Billy Hargis

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The efficacy of killed vaccines generally is not equal to live vaccines. However, due to safety and ease of production, they remain a vital part of controlling and preventing diseases. In this study, the immune response to four different vaccination preparation techniques for the agent of bordetellosis of turkeys, Bordetella avium (BA), was compared. Preparation/inactivation techniques included (1) formalin inactivation, (2) opsonization of formalin-inactivated BA, (3) buffered acetic-acid BA inactivation, or (4) opsonization of buffered acetic-acid-inactivated BA. Non-adjuvated suspensions containing equal antigen mass were administered subcutaneously (0.2 mL) at day-of-hatch in all cases. For each treatment (N=40/treatment), plasma samples were …


Aberrant Expression Of Light And Its Associated Receptors In Systemic Lupus Erythematosus And Coeliac Disease, Eugene Dempsey Jan 2006

Aberrant Expression Of Light And Its Associated Receptors In Systemic Lupus Erythematosus And Coeliac Disease, Eugene Dempsey

Doctoral

Members of the TNF superfamily play important roles in the development and maintenance of an effective immune response. One such member of this superfamily, LIGHT, can act as a ligand for three receptors, HVEM, LT-R and DcR3. The engagement of LIGHT and HVEM, an important secondary signal for the full activation of T cells, results in a strong Th1 type response with increased production of cytokines such as INF--. The LIGHT-LT-R pathway plays a role in the recruitment of immune cells to sites of inflammation and can induce apoptosis in certain cells. DcR3, a soluble receptor, is speculated to function …


Guide To A Successful Pregnancy: A Resource Manual For Pregnant And Parenting Young Women In Las Vegas, Nevada Institute For Children's Research And Policy Reports Jan 2006

Guide To A Successful Pregnancy: A Resource Manual For Pregnant And Parenting Young Women In Las Vegas, Nevada Institute For Children's Research And Policy Reports

Nevada Institute for Children's Research and Policy Reports

A Guide to a Successful Pregnancy.

  • Are you Pregnant? Taking a pregnancy test
  • First steps of Pregnancy: Options of pregnancy, health plans, obtaining medical care such as a doctor
  • Months 1, 2, 3: Maintaining a healthy diet, what you should stay away from, exercise, symptoms of danger, and normal symptoms of pregnancy
  • Months 4, 5, 6: Following a routine, classes available during pregnancy, normal pregnancy symptoms
  • Months 7, 8, 9: Following a routine, normal pregnancy symptoms
  • Labor and Delivery: Symptoms of labor, symptoms of danger
  • Parenting: Normal symptoms after birth, Routine to follow to return to normal state, Breast feeding …


Attenuation Of Acute Rejection In A Rat Liver Transplantation Model By A Liver-Targeted Dextran Prodrug Of Methylprednisolone, Anjaneya Chimalakonda, Donald L. Montgomery, Jon A. Weidanz, Imam H. Shaik, Justin H. Nguyen, John J. Lemasters, Eiji Kobayashi, Reza Mehvar Jan 2006

Attenuation Of Acute Rejection In A Rat Liver Transplantation Model By A Liver-Targeted Dextran Prodrug Of Methylprednisolone, Anjaneya Chimalakonda, Donald L. Montgomery, Jon A. Weidanz, Imam H. Shaik, Justin H. Nguyen, John J. Lemasters, Eiji Kobayashi, Reza Mehvar

Pharmacy Faculty Articles and Research

Background. The use of methylprednisolone (MP) and other corticosteroids for the treatment of acute liver allograft rejection is associated with severe toxicities in nontarget tissues. Therefore, selective delivery of NIP to the liver may improve its efficacy and alleviate its side effects. We investigated the effects of a novel liver-targeted dextran prodrug of MP (DMP) in an orthotopic rat liver transplantation (OLT) model.

Methods. The model consisted of a high responder rejection strain combination (Dark Agouti donors and Lewis recipients). Liver recipients were intravenously administered saline or a single subtherapeutic dose of MP (5 mg/kg) as the parent …


Hyperinfection With The Bass Tapeworm, Proteocephalus Ambloplites (Cestoda), In The Black Basses Micropterus Punctulatus And M. Dolomieui From Certain Arkansas Reservoir Lakes, James J. Daly Sr., Randal J. Keller, Bruce Deyoung Jan 2006

Hyperinfection With The Bass Tapeworm, Proteocephalus Ambloplites (Cestoda), In The Black Basses Micropterus Punctulatus And M. Dolomieui From Certain Arkansas Reservoir Lakes, James J. Daly Sr., Randal J. Keller, Bruce Deyoung

Journal of the Arkansas Academy of Science

No abstract provided.


Sex Differentiation And Sexually Dimorphic Disease, Emily A. Jefferson Jan 2006

Sex Differentiation And Sexually Dimorphic Disease, Emily A. Jefferson

Theses : Honours

Sexual dimorphism of the central nervous system is a still widely debated and an area of much research. Conclusive evidence that anatomical and physiological differences in the CNS exist has been reported by post-mortem studies and magnetic resonance imaging (MRI). This present study seeks to contribute to the understanding of the differences in the brain between genders and to ascertain reasons as to why the literature is so varied. A number of structures such as the cerebral cortex, hypothalamic nuclei and the amygdala have proven to be significantly larger within males as opposed to females. The nuclei of the hypothalamus …


Effect Of A Paediatric Incentive Spacer And Reinforcement Of Inhalation Technique Training In Preschool Children, Jasminka Murdzoska Jan 2006

Effect Of A Paediatric Incentive Spacer And Reinforcement Of Inhalation Technique Training In Preschool Children, Jasminka Murdzoska

Theses : Honours

Incorrect inhaled drug delivery technique is a common problem in paediatric asthma [1-4]. Previously, device technique training has been shown to significantly improve inhaler skills, using subjective methods, namely check-list analysis [5-8]. However, more objective measures are needed to examine more comprehensively the effect of training in preschool children and parents. Resistance to regular asthma therapy is also a frequent problem when attempting to treat young children. Reasoning with young children can be very difficult and parents often have to struggle with their child to achieve compliance [2]. The Funhaler spacer (FH) (Funhaler™; InfaMed, Australia) has been developed in an …


Introduction To N-Adaptive Fuzzy Models To Analyze Public Opinion On Aids, Florentin Smarandache, W.B. Vasantha Kandasamy Jan 2006

Introduction To N-Adaptive Fuzzy Models To Analyze Public Opinion On Aids, Florentin Smarandache, W.B. Vasantha Kandasamy

Branch Mathematics and Statistics Faculty and Staff Publications

“AIDS is not simply a physical malady, it is also an artifact of social and sexual transgression, violated taboo, fractured identity—political and personal projections. Its key words are primarily the property of the powerful. AIDS: Keywords – is my attempt to identify and contest some of the assumptions underlying our current ‘knowledge’. In this effort I am joined by many AIDS activists including people living with AIDS— Acquired Immuno Deficiency Syndrome. “A syndrome is a pattern of symptoms pointing to a “morbid state” which may or may not be caused by infectious agents; a disease, on the other hand is, …


Innate Antiviral Response Targets Hiv-1 Release By The Induction Of Ubiquitin-Like Protein Isg15, Atsushi Okumura, Gengshi Lu, Ian Pitha-Rowe, Paula M. Pitha Jan 2006

Innate Antiviral Response Targets Hiv-1 Release By The Induction Of Ubiquitin-Like Protein Isg15, Atsushi Okumura, Gengshi Lu, Ian Pitha-Rowe, Paula M. Pitha

Dartmouth Scholarship

The goal of this study was to elucidate the molecular mechanism by which type I IFN inhibits assembly and release of HIV-1 virions. Our study revealed that the IFN-induced ubiquitin-like protein ISG15 mimics the IFN effect and inhibits release of HIV-1 virions without having any effect on the synthesis of HIV-1 proteins in the cells. ISG15 expression specifically inhibited ubiquitination of Gag and Tsg101 and disrupted the interaction of the Gag L domain with Tsg101, but conjugation of ISG15 to Gag or Tsg101 was not detected. The inhibition of Gag-Tsg101 interaction was also detected in HIV-1 infected, IFN-treated cells. Elimination …