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2009

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Articles 511 - 540 of 662

Full-Text Articles in Medical Specialties

Hyperandrogenism And Obesity: Ominous Co-Morbidities, Amit M. Deokar, Shawn J. Smith, Amanda J. Goodwin, Hatim A. Omar Jan 2009

Hyperandrogenism And Obesity: Ominous Co-Morbidities, Amit M. Deokar, Shawn J. Smith, Amanda J. Goodwin, Hatim A. Omar

Pediatrics Faculty Publications

This review has a two-fold objective. One, it addresses the association of hyperandrogenism and obesity and the complex metabolic derangements that are part of the problem. Clinical management of these co-morbidities is challenging and complex. Second, this article will aid health care providers with the key features to an early diagnosis and intervention to decrease the morbidities in the short as well as long term. Method: Systematic review of articles and information on the topic of interest that were published in the last 15 years. Conclusion: Obesity and hyperandrogenism are integral parts of Metabolic Syndrome/Polycystic Ovarian Syndrome (PCOS)/Hyperandrogenism, Insulin resistance, …


Emerging Role Of Garcinol, The Antioxidant Chalcone From Garcinia Indica Choisy And Its Synthetic Analogs, Subhash Padhye, Aamir Ahmad, Nikhil Oswal, Fazlul H. Sarkar Jan 2009

Emerging Role Of Garcinol, The Antioxidant Chalcone From Garcinia Indica Choisy And Its Synthetic Analogs, Subhash Padhye, Aamir Ahmad, Nikhil Oswal, Fazlul H. Sarkar

Wayne State University Associated BioMed Central Scholarship

Abstract

Garcinol, harvested from Garcinia indica, has traditionally been used in tropical regions and appreciated for centuries; however its biological properties are only beginning to be elucidated. There is ample data to suggest potent antioxidant properties of this compound which have been used to explain most of its observed biological activities. However, emerging evidence suggests that garcinol could be useful as an anti-cancer agent, and it is increasingly being realized that garcinol is a pleiotropic agent capable of modulating key regulatory cell signaling pathways. Here we have summarized the progress of our current research knowledge on garcinol and its observed …


A Unique Case Of Urinary Bladder Simple Melanosis: A Case Report And Review Of The Literature, Bo Jin, Syed Y. Zaidi, Melvin Hollowell, Christopher Hollowell, Husain Saleh Jan 2009

A Unique Case Of Urinary Bladder Simple Melanosis: A Case Report And Review Of The Literature, Bo Jin, Syed Y. Zaidi, Melvin Hollowell, Christopher Hollowell, Husain Saleh

Wayne State University Associated BioMed Central Scholarship

Abstract

Melanosis refers to abnormal or excessive deposition of melanin pigment in the cells and/or tissue, which can be seen in any organ but commonly in skin and oral mucosa. Melanosis of the urinary bladder is an extremely rare benign condition and only a handful of cases been reported in the English literature before. In this article, we report a new case of urinary melanosis, describe the differential diagnostic features from pseudomelanosis and offer clues for correct diagnosis. We also provide comprehensive review of the literature on the subject.


Prevalence, Evaluation And Management Of Overactive Bladder In Primary Care, Wellman W. Cheung, Nadia H. Khan, Karmina K. Choi, Martin H. Bluth, Miriam T. Vincent Jan 2009

Prevalence, Evaluation And Management Of Overactive Bladder In Primary Care, Wellman W. Cheung, Nadia H. Khan, Karmina K. Choi, Martin H. Bluth, Miriam T. Vincent

Wayne State University Associated BioMed Central Scholarship

Abstract

Background

Patients with overactive bladder (OAB) are under-diagnosed in the primary care setting. Primary care physicians (PCP) approach to the patient and appropriate patient disclosure may contribute to under-diagnosis.

Methods

An outpatient primary care setting was used to determine the prevalence and characteristics of OAB. Patients who visited the family medicine outpatient clinic were invited to answer a self-administered questionnaire. It included questions on evidence of lower urinary tract symptoms (modified Overactive Bladder-Validated 8-question Screener [OAB-V8]), relevant medical and surgical history, and demographic data. Relationship between OAB and other independent variables were analyzed using chi-square and risk ratio (RR) …


Lymphomatoid Granulomatosis Masquerading As Interstitial Pneumonia In A 66-Year-Old Man: A Case Report And Review Of Literature, Ashima Makol, Kalyan Kosuri, Deimante Tamkus, Wanderley De M Calaca, Howard T. Chang Jan 2009

Lymphomatoid Granulomatosis Masquerading As Interstitial Pneumonia In A 66-Year-Old Man: A Case Report And Review Of Literature, Ashima Makol, Kalyan Kosuri, Deimante Tamkus, Wanderley De M Calaca, Howard T. Chang

Wayne State University Associated BioMed Central Scholarship

Abstract

Lymphomatoid granulomatosis (LG) is a rare, Epstein-Barr virus (EBV)-associated systemic angiodestructive lymphoproliferative disorder that may progress to a diffuse large B cell lymphoma. Pulmonary involvement may mimic other more common lung pathologies including pneumonias. Therapeutic standards have not been established for LG, but rituximab, interferon-α2b (INF-α2b), and chemotherapy have shown to improve symptoms and long term prognosis.

We report a case of rapid respiratory deterioration in a 66-year-old man with clinical presentation, chest radiography, pulmonary function testing and high resolution computed tomography (HRCT) findings consistent with idiopathic interstitial pneumonia, but very poor response to antibiotics and low dose steroids. …


Overweight Children And Adolescents: Impact On Psychological And Social Development, Kimberly K. Mcclanahan, Marlene B. Huff, Hatim A. Omar Jan 2009

Overweight Children And Adolescents: Impact On Psychological And Social Development, Kimberly K. Mcclanahan, Marlene B. Huff, Hatim A. Omar

Pediatrics Faculty Publications

The global epidemic of childhood and adolescent overweight has become a major public health concern. Not only are these youth more likely to become obese as adults, and thus more prone to obesity-related diseases than their non overweight peers, they are also likely to suffer emotional and social effects associated with overweight. Overweight in youth has been linked to depression, low self-esteem, eating disorders, negative body image, and stigma. It appears to be bi-directional in nature, with overweight sometimes predicting certain psychological effects and psychosocial issues sometimes predicting overweight. Effective assessment and treatment of psychological and mental health issues in …


Shoulder Impingement Syndrome: Outcome Of Arthroscopic Subacromial Decompression, Attiq Ur Rehman, Muhammad Abdul Wajid, Tashfeen Ahmad Jan 2009

Shoulder Impingement Syndrome: Outcome Of Arthroscopic Subacromial Decompression, Attiq Ur Rehman, Muhammad Abdul Wajid, Tashfeen Ahmad

Section of Orthopaedic Surgery

Objective: To describe the outcome of cases with subacromial impingement syndrome managed with arthroscopic subacromial decompression.
Study Design: Quasi-experimental study.
Place and Duration of Study: Section of Orthopaedics, Department of Surgery, The Aga Khan University Hospital, Karachi from April 2005 to March 2006.
Methodology: Thirty patients with impingement syndrome who underwent arthroscopic subacromial decompression after failed conservative treatment were included. The Constant and Murley shoulder scoring system was used for the clinical assessment of pain and function pre-operatively and 1, 6 and 24 weeks postoperatively.
Results: The postoperatively significant improvement was observed in the Constant and Murley scores in all …


Rhizopus Necrotizing Fasciitis Of Caesarean Wound: A Rare Life Threatening Condition, Abdul Rehman Alvi, Ghina Shamsi Jan 2009

Rhizopus Necrotizing Fasciitis Of Caesarean Wound: A Rare Life Threatening Condition, Abdul Rehman Alvi, Ghina Shamsi

Section of General Surgery

Mucormycosis is a rare cause of necrotizing fasciitis in immunocompromised patients. We report a young female, who developed rhizopus necrotizing fasciitis of caesarean wound. The lady died secondary to non-responding sepsis and irreversible multi-organ failure. High index of suspicion can lead to early diagnosis by frozen section of histopathology and fungal culture technique. Aggressive surgical debridement and intravenous anti-fungal medication is the main stay of treatment. A delay in diagnosis and treatment may cause multi-organ failure leading to high mortality.


Non-Traumatic Right Hepatic Artery Pseudoaneurysm: An Unusual Cause Of Hemobilia And Obstructive Jaundice, Abdul Rehman Alvi, Shahida Bibi, Ziaur Rehman, Salma Khan Jan 2009

Non-Traumatic Right Hepatic Artery Pseudoaneurysm: An Unusual Cause Of Hemobilia And Obstructive Jaundice, Abdul Rehman Alvi, Shahida Bibi, Ziaur Rehman, Salma Khan

Section of General Surgery

Most hepatic artery pseudoaneurysms (HAPA) are post traumatic, and non-traumatic pseudoaneurysm is rarely reported. It is a potentially life threatening vascular disorder and difficult to diagnose before rupture. Early diagnosis and prompt nonoperative intervention of this lesion could be life saving. The authors report the case of a patient with hemobilia caused by ruptured right hepatic artery pseudoaneurysm and subsequently developed right hepatic duct stricture, which has not been reported previously. This patient was successfully treated with endovascular stent graft of pseudoaneurysm and endoscopic stenting of right hepatic duct stricture.


Severe Road Traffic Injuries In Kenya, Quality Of Care And Access, William Macharia, F. Muli-Musiime, V. Nantulya, Erastus K. Njeru Jan 2009

Severe Road Traffic Injuries In Kenya, Quality Of Care And Access, William Macharia, F. Muli-Musiime, V. Nantulya, Erastus K. Njeru

Paediatrics and Child Health, East Africa

Background: Road traffic injuries (RTI) are on increase in developing countries. Health care facilities are poorly equipped to provide the needed services.

Objective: Determine access and quality of care for RTI casualties in Kenya.

Design: Cross-sectional survey

Setting: 53 large and medium size private, faith-based and public hospitals.

Participants: In-patient road traffic crash casualties and health personnel in the selected hospitals were interviewed on availability of emergency care and resources. Onsite verification of status was undertaken.

Results: Out of 310 RTI casualties interviewed, 72.3%, 15.6% and 12.2% were in public, faith-based and private hospitals, respectively. Peak age of the injured …


Four-Country Surveillance Of Intestinal Intussusception And Diarrhoea In Children, Shally Awasthi, Girdhar Agarwal, Vikas Mishra, Vijay Laxmi Nag, Hesham Fathey El Sayed, Antonio Da Cunha, Alvaro Madeiro, Dipty Jain, William Macharia, James Ndung'u, Saumya Awasthi, Ashish Wakhlu Jan 2009

Four-Country Surveillance Of Intestinal Intussusception And Diarrhoea In Children, Shally Awasthi, Girdhar Agarwal, Vikas Mishra, Vijay Laxmi Nag, Hesham Fathey El Sayed, Antonio Da Cunha, Alvaro Madeiro, Dipty Jain, William Macharia, James Ndung'u, Saumya Awasthi, Ashish Wakhlu

Paediatrics and Child Health, East Africa

Aim: Establishment of baseline epidemiology of intussusception in developing countries has become a necessity with the possibility of reintroduction of rotavirus vaccine. The current study assessed the seasonal trend in cases admitted with intussusceptions and dehydrating acute watery diarrhoea in children aged 2 months to 10 years.

Methods: In a prospective surveillance study, teaching and research hospital sites in India (Lucknow and Nagpur), Brazil (Fortazela), Egypt (Ismailia) and Kenya (Nairobi) established a surveillance where a network of hospitals with surgical facilities catered to a reference population of about 1-2 million for reporting of intussusception. One large hospital per site also …


Characteristics Of Hiv-Infected Children Seen In Western Kenya, W Nyandiko, A. Mwangi, S. O. Ayaya, E. C. Nabakwe, C. N. Tenge, R. C. Vreeman, Peter Gisore Jan 2009

Characteristics Of Hiv-Infected Children Seen In Western Kenya, W Nyandiko, A. Mwangi, S. O. Ayaya, E. C. Nabakwe, C. N. Tenge, R. C. Vreeman, Peter Gisore

Paediatrics and Child Health, East Africa

Objectives: To describe the characteristics and outcomes of children registered for care in a large HIV care programme in Western Kenya.

Design: A retrospective descriptive study.

Setting: USAID-AMPATH HIV clinics in health centres; district and sub-district hospitals; Moi Teaching and Referral Hospital in Western Kenya.

Subjects: HIV-infected children below age of 15 years seen in a network of 18 clinics in Western Kenya.

Interventions: Paediatric HIV diagnosis and care including treatment and prevention of opportunistic infections and provision of combination antiretroviral therapy (CART).

Main outcome measures: Diagnosis, clinical stage and immune status at enrollment and follow-up; hospitalisation and death. Descriptive …


A Comparison Of The Observation Of Movement Method And Electromyography Method Of Determining Motor Threshold In Transcranial Magnetic Stimulation, Berry Stephen Anderson Jan 2009

A Comparison Of The Observation Of Movement Method And Electromyography Method Of Determining Motor Threshold In Transcranial Magnetic Stimulation, Berry Stephen Anderson

MUSC Theses and Dissertations

Clinicians are using transcranial magnetic stimulation (TMS) as a noninvasive tool to treat depression; however, standards for determining the motor threshold (MT), which often determines the final location of the TMS coil and the intensity of simulation for the depression treatment, are not clear. This study compared the observation of movement (OM) method and electromyography (EMG) method of determining motor threshold in a group of experienced TMS administrators and nurses with no previous MT knowledge. We hypothesized that between methods and groups the MT estimates would vary by ≤ 5% of stimulator output and the ideal motor scalp location between …


Dilemma In The Diagnosis Of Mediastinal Adenopathy In The South Asian Population-Role Of Ct Guided Biopsy, Mediastinoscopy And Video-Assisted Thoracoscopy (Vats), Marium Muzaffar, Hashim M Hanif, Saulat H. Fatimi Jan 2009

Dilemma In The Diagnosis Of Mediastinal Adenopathy In The South Asian Population-Role Of Ct Guided Biopsy, Mediastinoscopy And Video-Assisted Thoracoscopy (Vats), Marium Muzaffar, Hashim M Hanif, Saulat H. Fatimi

Section of Cardiothoracic Surgery

The diagnosis of mediastinal adenopathy is a dilemma amongst treating physicians especially in South Asia. This is because although tuberculosis is endemic in this region, many a times lymphoma and sarcoidosis cannot be excluded. Often patients are being treated with medications without a confirmed diagnosis. The Video-assisted thoracoscopy (VATS) has revolutionized the way mediastinal adenopathy is diagnosed and managed in this part of the world.


Molecular Confirmation Of The Causes Of Inherited Visual Impairment In Northern Pakistan, Mehreen Adhi, Yasmin Rashid, Syed Hussain Jafri, Chris F. Inglehearn, Martin Mckibbin Jan 2009

Molecular Confirmation Of The Causes Of Inherited Visual Impairment In Northern Pakistan, Mehreen Adhi, Yasmin Rashid, Syed Hussain Jafri, Chris F. Inglehearn, Martin Mckibbin

Section of Ophthalmology

Families with inherited visual impairment were identified and examined from January 2000 to December 2005 and given a clinical diagnosis. Known genes and loci were screened for mutations or linkage at Institute of Ophthalmology and Neurosciences, University of Leeds, in order to provide molecular confirmation. Inherited retinal disease was the most common cause of inherited visual impairment in 38 of 57 families (66.6%) with Leber's congenital amaurosis, rod-cone dystrophy and cone-rod dystrophy being the most common diagnoses in 22, 8 and 3 families respectively. Anterior segment dysgenesis was diagnosed in 8 families (14%). Mutations in known genes or linkage to …


The Effects Of An Integrated Behavioral Health Initiative On The Behavior Of Providers In An Ob/Gyn Primary Care Clinic, Dean Moritz Jan 2009

The Effects Of An Integrated Behavioral Health Initiative On The Behavior Of Providers In An Ob/Gyn Primary Care Clinic, Dean Moritz

Walden Dissertations and Doctoral Studies

The separation between behavioral services and traditional medicine is increasingly being seen as counterproductive on personal and societal levels. Despite this, there has been little research examining how integrated models blending mental and physical health services could be implemented. The literature revealed that behavioral interventions have been incorporated into traditional medical treatments, but this often has been piecemeal in nature and has yielded equivocal results. This study examined the assertion that effective integration between behavioral and medical services will increase the standard of care for the patient. Integration in this study was accomplished by colocating a psychologist on the primary …


Violence Against Women Raises Risk Of Cervical Cancer, Ann L. Coker, Claudia Hopenhayn, Christopher P. Desimone, Heather M. Bush, Leslie Crofford Jan 2009

Violence Against Women Raises Risk Of Cervical Cancer, Ann L. Coker, Claudia Hopenhayn, Christopher P. Desimone, Heather M. Bush, Leslie Crofford

CRVAW Faculty Journal Articles

Background: An emerging literature suggests that violence against women (VAW), particularly sexual violence, may increase the risk of acquiring a sexually transmitted infection (STI) and, therefore, may be associated with cervical cancer development. The purpose of this cross-sectional analysis was to determine if women who had experienced violence had higher prevalence rates of invasive cervical cancer.

Methods: Women aged 18–88 who joined the Kentucky Women’s Health Registry (2006–2007) and completed a questionnaire were included in the sample. Multivariate logistic regression analyses were used to adjust odds ratio (OR) for confounders (e.g., age, education, current marital status, lifetime illegal drug use, …


Hpv Vaccine Acceptance Among Latina Mothers By Hpv Status, Maureen Sanderson, Ann L. Coker, Katherine S. Eggleston, Maria E. Fernandez, Concepcion D. Arrastia, Mary Kay Fadden Jan 2009

Hpv Vaccine Acceptance Among Latina Mothers By Hpv Status, Maureen Sanderson, Ann L. Coker, Katherine S. Eggleston, Maria E. Fernandez, Concepcion D. Arrastia, Mary Kay Fadden

CRVAW Faculty Journal Articles

Objective: We investigated whether Latina mothers who were and were not human papillomavirus (HPV) positive differed in their knowledge and acceptance of the HPV vaccine for their children.

Methods: We conducted a cross–sectional survey among women aged 18–64 years between April 2007 and April 2008. Data collectors conducted in-person interviews in community clinics with 215 HPV-negative women and 190 HPV-positive women (with respective response rates of 64% and 84%). Most (83%) HPV-positive women were recruited at dysplasia clinics. Although no HPV-negative women were recruited at dysplasia clinics, they were recruited at other low-income public and private clinics.

Results: After adjustment …


Breast Cancer Screening In Women Exposed In Utero To Diethylstilbestrol, Elizabeth A. Camp, Ann L. Coker, Stanley J. Robboy, Kenneth L. Noller, Karen J. Goodman, Linda T. Titus-Ernstoff, Elizabeth E. Hatch, Arthur L. Herbst, Rebecca Troisi, Raymond H. Kaufman, Ervin Adam Jan 2009

Breast Cancer Screening In Women Exposed In Utero To Diethylstilbestrol, Elizabeth A. Camp, Ann L. Coker, Stanley J. Robboy, Kenneth L. Noller, Karen J. Goodman, Linda T. Titus-Ernstoff, Elizabeth E. Hatch, Arthur L. Herbst, Rebecca Troisi, Raymond H. Kaufman, Ervin Adam

CRVAW Faculty Journal Articles

Purpose: To determine if women exposed in utero to diethylstilbestrol (DES) are more likely than unexposed women to receive recommended or additional breast cancer screening examinations.

Methods: 1994 Diethylstilbestrol-Adenosis (DESAD) cohort data are used to assess the degree of recommended compliance of breast cancer screenings found in 3140 DES-exposed and 826 unexposed women. Participants were enrolled at four sites: Houston, Boston, Rochester, and Los Angeles. Logistic regression modeling was used to analyze mailed questionnaire data that included reported frequency over the preceding 5 years (1990–1994) of breast-self examinations (BSEs), clinical breast examinations (CBEs), and mammograms.

Results: DES-exposed women exceeded annual …


Ethnic Disparities In Cervical Cancer Survival Among Medicare Eligible Women In A Multiethnic Population, Ann L. Coker, Katherine S. Eggleston, Xianglin L. Du, Lois Ramondetta Jan 2009

Ethnic Disparities In Cervical Cancer Survival Among Medicare Eligible Women In A Multiethnic Population, Ann L. Coker, Katherine S. Eggleston, Xianglin L. Du, Lois Ramondetta

CRVAW Faculty Journal Articles

To determine predictors of cervical cancer survival by socioeconomic status (SES), urbanization, race/ethnicity, comorbid conditions, and treatment among elderly Medicare-eligible women whose conditions were diagnosed with cervical cancer in a multiethnic population.

Methods: A total of 538 women with cervical cancer aged 65 years or older were identified from 1999 to 2001 from the Texas Cancer Registry and were linked with the state Medicare data and Texas Vital Records to determine survival times. All women had similar access to care through Medicare fee-for-services insurance. A composite measure of SES was created using census tract-level data as was urbanization. Treatment and …


Combination Of Fasl Gene Therapy And Acid Ceramidase Inhibitors: A Novel Therapeutic Approach For The Treatment Of Head And Neck Cancer, Saeed Elojeimy Jan 2009

Combination Of Fasl Gene Therapy And Acid Ceramidase Inhibitors: A Novel Therapeutic Approach For The Treatment Of Head And Neck Cancer, Saeed Elojeimy

MUSC Theses and Dissertations

Despite significant advances in the diagnosis and treatment of head and neck cancer, the survival rate of patients has not changed significantly during the last decade suggesting that novel therapeutic approaches are worth investigation. In this project, we investigate the use of FasL gene therapy in combination with acid ceramidase (AC) inhibitors as a new promising modality for the treatment of head and neck cancer. We first demonstrate the in vitro and in vivo efficacy of FasL gene therapy for the treatment of head and neck squamous cell carcinoma (HNSCC). Next, we show that the ceramide metabolizing enzyme AC is …


Trichostatin A Inhibits Corneal Haze In Vitro And In Vivo, Ajay Sharma, Maneesh M. Mehan, Sunilima Sinha, John W. Cowden, Rajiv R. Mohan Jan 2009

Trichostatin A Inhibits Corneal Haze In Vitro And In Vivo, Ajay Sharma, Maneesh M. Mehan, Sunilima Sinha, John W. Cowden, Rajiv R. Mohan

Pharmacy Faculty Articles and Research

PURPOSE. Trichostatin A (TSA), a histone deacetylase inhibitor, has been shown to suppress TGF- –induced fibrogenesis in many nonocular tissues. The authors evaluated TSA cytotoxicity and its antifibrogenic activity on TGF- –driven fibrosis in the cornea with the use of in vitro and in vivo models.

METHODS. Human corneal fibroblasts (HSFs) were used for in vitro studies, and New Zealand White rabbits were used for in vivo studies. Haze in the rabbit cornea was produced with photorefractive keratectomy (PRK) using excimer laser. Trypan blue exclusion and MTT assays evaluated TSA cytotoxicity to the cornea. Density of haze in the rabbit …


A Genome-Wide Association Study In Chronic Obstructive Pulmonary Disease (Copd): Identification Of Two Major Susceptibility Loci, Sreekumar G. Pillai, Dongliang Ge, Guohua Zhu, Xiangyang Kong, Kevin V. Shianna, Anna C. Need, Sheng Feng, Craig P. Hersh, Per Bakke, Amund Gulsvik, Andreas Ruppert, Karin C. Lødrup Carlsen, Allen Roses, Wayne Anderson, Stephen I. Rennard, David A. Lomas, Edwin K. Silverman, David B. Goldstein, Icgn Investigators Jan 2009

A Genome-Wide Association Study In Chronic Obstructive Pulmonary Disease (Copd): Identification Of Two Major Susceptibility Loci, Sreekumar G. Pillai, Dongliang Ge, Guohua Zhu, Xiangyang Kong, Kevin V. Shianna, Anna C. Need, Sheng Feng, Craig P. Hersh, Per Bakke, Amund Gulsvik, Andreas Ruppert, Karin C. Lødrup Carlsen, Allen Roses, Wayne Anderson, Stephen I. Rennard, David A. Lomas, Edwin K. Silverman, David B. Goldstein, Icgn Investigators

Journal Articles: Pulmonary & Critical Care Med

There is considerable variability in the susceptibility of smokers to develop chronic obstructive pulmonary disease (COPD). The only known genetic risk factor is severe deficiency of alpha(1)-antitrypsin, which is present in 1-2% of individuals with COPD. We conducted a genome-wide association study (GWAS) in a homogenous case-control cohort from Bergen, Norway (823 COPD cases and 810 smoking controls) and evaluated the top 100 single nucleotide polymorphisms (SNPs) in the family-based International COPD Genetics Network (ICGN; 1891 Caucasian individuals from 606 pedigrees) study. The polymorphisms that showed replication were further evaluated in 389 subjects from the US National Emphysema Treatment Trial …


X4 Human Immunodeficiency Virus Type 1 Gp120 Down-Modulates Expression And Immunogenicity Of Codelivered Antigens, Avi-Hai Hovav, Michael Santosuosso, Maytal Bivas-Benita, Andre Plair, Alex Cheng, Mazal Elnekave, Elda Righi, Tao Chen, Satoshi Kashiwagi, Michael W. Panas, Shi-Hua Xiang, Karina Furmanov, Norman L. Letvin, Mark C. Poznansky Jan 2009

X4 Human Immunodeficiency Virus Type 1 Gp120 Down-Modulates Expression And Immunogenicity Of Codelivered Antigens, Avi-Hai Hovav, Michael Santosuosso, Maytal Bivas-Benita, Andre Plair, Alex Cheng, Mazal Elnekave, Elda Righi, Tao Chen, Satoshi Kashiwagi, Michael W. Panas, Shi-Hua Xiang, Karina Furmanov, Norman L. Letvin, Mark C. Poznansky

Nebraska Center for Virology: Faculty Publications

In order to increase the immune breadth of human immunodeficiency virus (HIV) vaccines, strategies such

as immunization with several HIV antigens or centralized immunogens have been examined. HIV-1 gp120

protein is a major immunogen of HIV and has been routinely considered for inclusion in both present and

future AIDS vaccines. However, recent studies proposed that gp120 interferes with the generation of immune

response to codelivered antigens. Here, we investigate whether coimmunization with plasmid-encoded gp120

alters the immune response to other coadministered plasmid encoded antigens such as luciferase or ovalbumin

in a mouse model. We found that the presence of gp120 …


Identification And Characterization Of A New Kaposi’S Sarcoma-Associated Herpesvirus Replication And Transcription Activator (Rta)- Responsive Element Involved In Rta-Mediated Transactivation, Hui-Ju Wen, Veenu Minhas, Charles Wood Jan 2009

Identification And Characterization Of A New Kaposi’S Sarcoma-Associated Herpesvirus Replication And Transcription Activator (Rta)- Responsive Element Involved In Rta-Mediated Transactivation, Hui-Ju Wen, Veenu Minhas, Charles Wood

Nebraska Center for Virology: Faculty Publications

Kaposi’s sarcoma-associated herpesvirus (KSHV) replication and transcription activator (RTA) is well established as a key transcriptional activator that regulates the KSHV life cycle from latency to lytic replication. It is expressed immediately after infection and activates a number of viral genes leading to virus replication. The RTA-responsive element (RRE) in the RTA target gene promoters is critical for RTA to mediate this transactivation. A number of non-conserved RREs have been identified in various RTA-responsive promoters, and AT-rich sequences have been proposed to serve as RTA targets, but no consensus RRE sequence has been identified so far. Two nonconserved RREs (RRE1 …


Use Of Average Mutual Information For Studying Changes In Hiv Populations, Khalid Sayood, Federico Hoffman, Charles Wood Jan 2009

Use Of Average Mutual Information For Studying Changes In Hiv Populations, Khalid Sayood, Federico Hoffman, Charles Wood

Nebraska Center for Virology: Faculty Publications

Average mutual information (AMI) has been used in a number of applications in bioinformatics. In this paper we present its use to study genetic changes in populations; in particular populations of HIV viruses. Disease progression of HIV-1 infection in infants can be rapid resulting in death within the the first year, or slow, allowing the infant to survive beyond the first year. We study the development of rapid and slow progressing HIV population using AMI charts based on average mutual information among amino acids in the env gene from a population of 1142 clones derived from seven infants with slow …


Comparison Of Replication-Competent, First Generation, And Helper-Dependent Adenoviral Vaccines, Eric A. Weaver, Pramod N. Nehete, Stephanie S. Buchl, Julien S. Senac, Donna Palmer, Philip Ng, K. Jagannadha Sastry, Michael A. Barry Jan 2009

Comparison Of Replication-Competent, First Generation, And Helper-Dependent Adenoviral Vaccines, Eric A. Weaver, Pramod N. Nehete, Stephanie S. Buchl, Julien S. Senac, Donna Palmer, Philip Ng, K. Jagannadha Sastry, Michael A. Barry

Nebraska Center for Virology: Faculty Publications

All studies using human serotype 5 Adenovirus (Ad) vectors must address two major obstacles: safety and the presence of pre-existing neutralizing antibodies. Helper-Dependent (HD) Ads have been proposed as alternative vectors for gene therapy and vaccine development because they have an improved safety profile. To evaluate the potential of HD-Ad vaccines, we compared replication-competent (RC), first-generation (FG) and HD vectors for their ability to induce immune responses in mice. We show that RC-Ad5 and HD-Ad5 vectors generate stronger immune responses than FG-Ad5 vectors. HD-Ad5 vectors gave lower side effects than RC or FG-Ad, producing lower levels of tissue damage and …


Expression Of Semaphorin 3f And Its Receptors In Epithelial Ovarian Cancer, Fallopian Tubes, And Secondary Müllerian Tissues, Christina D. Drenberg, Sandra Livingston, Ren Chen, Patricia A. Kruk, Santo V. Nicosia Jan 2009

Expression Of Semaphorin 3f And Its Receptors In Epithelial Ovarian Cancer, Fallopian Tubes, And Secondary Müllerian Tissues, Christina D. Drenberg, Sandra Livingston, Ren Chen, Patricia A. Kruk, Santo V. Nicosia

Pathology and Cell Biology Faculty Publications

While semaphorins and their receptors appear to play a role in tumor carcinogenesis, little is known about the role of semaphorin 3F (S3F) in epithelial ovarian cancer (EOC) development. Therefore, we sought to determine the clinical relationship between S3F and its receptors, neuropilin-2 (NP-2) and neuropilin-1 (NP-1) with EOC progression. We analyzed the immunohistological expression of S3F, NP-2, and NP-1 in clinical specimens of normal ovaries (N), benign cystadenomas (Cy), well-differentiated adenocarcinomas (WD), poorly-differentiated adenocarcinomas (PD), inclusion cysts (IC), paraovarian cysts (PC), and fallopian tubes (FT). Tissue sections were evaluated for staining intensity and percentage of immunoreactive epithelia. We found …


Congregate Mealsite Participants’ Self-Reported And Functional Health, Participation In Activities And Attitudes Toward Aging In Wisconsin, Amy Ramsey Jan 2009

Congregate Mealsite Participants’ Self-Reported And Functional Health, Participation In Activities And Attitudes Toward Aging In Wisconsin, Amy Ramsey

Master's Theses and Doctoral Dissertations

The number of older Americans is increasing. Participation in activities is essential for maintaining health and functional independence, preventing or delaying chronic diseases and improving quality of life. Generally, as older adults age, prevalence of regular activity declines. Many older adults are not engaging in activities and are not receiving the health benefits that these offer.

This cross-sectional study used a self-administered survey to examine whether there is an association between attitudes toward aging, self-reported and functional health, and participation in activities among older adults aged 55 and older who attend congregate mealsites in Wisconsin. It was hypothesized that older …


Genetic And Hormonal Factors Modulate Spreading Depression And Transient Hemiparesis In Mouse Models Of Familial Hemiplegic Migraine Type 1, Katharina Eikermann-Haerter, Ergin Dileköz, Chiho Kudo, Sean I Savitz, Christian Waeber, Michael J Baum, Michel D Ferrari, Arn M J M Van Den Maagdenberg, Michael A Moskowitz, Cenk Ayata Jan 2009

Genetic And Hormonal Factors Modulate Spreading Depression And Transient Hemiparesis In Mouse Models Of Familial Hemiplegic Migraine Type 1, Katharina Eikermann-Haerter, Ergin Dileköz, Chiho Kudo, Sean I Savitz, Christian Waeber, Michael J Baum, Michel D Ferrari, Arn M J M Van Den Maagdenberg, Michael A Moskowitz, Cenk Ayata

Faculty, Staff and Student Publications

Familial hemiplegic migraine type 1 (FHM1) is an autosomal dominant subtype of migraine with aura that is associated with hemiparesis. As with other types of migraine, it affects women more frequently than men. FHM1 is caused by mutations in the CACNA1A gene, which encodes the alpha1A subunit of Cav2.1 channels; the R192Q mutation in CACNA1A causes a mild form of FHM1, whereas the S218L mutation causes a severe, often lethal phenotype. Spreading depression (SD), a slowly propagating neuronal and glial cell depolarization that leads to depression of neuronal activity, is the most likely cause of migraine aura. Here, we have …