Digital Commons Network^™

Emergency Care Surveillance And Emergency Care Registries In Low-Income And Middle-Income Countries: Conceptual Challenges And Future Directions For Research, Hani Mowaf, Christine Ngaruiya, Gerard O'Reilly, Olive Kobusingye, Vikas Kapil, Andres Rubiano, Marcus Ong, Juan Carlos Puyana, Akm Fazlur Rahman, Rashid Jooma, Blythe Beecrof, Junaid Razzak

Section of Neurosurgery

Despite the fact that the 15 leading causes of global deaths and disability-adjusted life years are from conditions amenable to emergency care, and that this burden is highest in low-income and middle-income countries (LMICs), there is a paucity of research on LMIC emergency care to guide policy making, resource allocation and service provision. A literature review of the 550 articles on LMIC emergency care published in the 10-year period from 2007 to 2016 yielded 106 articles for LMIC emergency care surveillance and registry research. Few articles were from established longitudinal surveillance or registries and primarily composed of short-term data collection. …

Study Of Environmental Enteropathy And Malnutrition (Seem) In Pakistan: Protocols For Biopsy Based Biomarker Discovery And Validation, Najeeha Talat Iqbal, Sana Saeed, Kamran Sadiq, Marium N. Khan, Junaid Iqbal, Jennie Z. Ma, Fayaz Umrani, Sheraz Ahmed, Elizabeth A. Maier, Lee A. Denson, Shahida Qureshi, Syed Asad Ali

Department of Paediatrics and Child Health

Background:
Environmental Enteropathy (EE), characterized by alterations in intestinal structure, function, and immune activation, is believed to be an important contributor to childhood undernutrition and its associated morbidities, including stunting. Half of all global deaths in children < 5 years are attributable to under-nutrition, making the study of EE an area of critical priority.
Methods:
Community based intervention study, divided into two sub-studies, 1) Longitudinal analyses and 2) Biopsy studies for identification of EE features via omics analyses. Birth cohorts in Matiari, Pakistan established: moderately or severely malnourished (weight for height Z score (WHZ) < − 2) children, and well-nourished (WHZ > 0) children. Blood, urine, and fecal samples, for evaluation of potential biomarkers, will be collected at various time points from all participants (longitudinal …

“I Don’T Want To Look Sick Skinny”: Perceptions Of Body Image And Weight Loss In Hispanics Living With Hiv In South Texas, Jordan W. Abel, Omar Allen, Delia Bullock, Erin Finley, Elizabeth Walter, Phillip Schnarrs, Barbara S. Taylor

Journal of Health Disparities Research and Practice

Objective: Obesity is rising in people with HIV (PLWH) and Hispanics. Both HIV and obesity are associated with cardiovascular disease morbidity and mortality. Our goal is to understand perceptions of body image and lifestyle in Hispanics with HIV to adapt interventions appropriately.

Methods: We conducted semi-structured interviews with 22 Hispanic PLWH and 6 providers. Purposive sampling selected patient participants across weights and genders. Interviews were coded and analyzed using grounded theory, comparing perspectives between patients with and without obesity, and patients and providers.

Results: Participants felt obesity and diabetes were “normal” in the community. Patients exhibited understanding of healthy diet …

Bitter Taste Receptors For Asthma Therapeutics., Ajay P. Nayak, Sushrut D. Shah, James V. Michael, Deepak A. Deshpande

Center for Translational Medicine Faculty Papers

Clinical management of asthma and chronic obstructive pulmonary disease (COPD) has primarily relied on the use of beta 2 adrenergic receptor agonists (bronchodilators) and corticosteroids, and more recently, monoclonal antibody therapies (biologics) targeting specific cytokines and their functions. Although these approaches provide relief from exacerbations, questions remain on their long-term efficacy and safety. Furthermore, current therapeutics do not address progressive airway remodeling (AR), a key pathological feature of severe obstructive lung disease. Strikingly, agonists of the bitter taste receptors (TAS2Rs) deliver robust bronchodilation, curtail allergen-induced inflammatory responses in the airways and regulate airway smooth muscle (ASM) cell proliferation and mitigate …

Transmissible Dermatological Diseases Affecting Syrian Refugees In Lebanon, Nisrine Kawa, Edith Hanna, Abdul Rahman Bizri

Journal of Refugee & Global Health

The Syrian war led many to seek shelter in Lebanon, creating a major refugee crisis. Displaced populations in crowded unequipped settlements are vulnerable to infectious diseases. The burden and incidence of various transmissible skin conditions affecting Syrian refugees in Lebanon and their impact on the Lebanese public health system were evaluated. Literature regarding these conditions among Syrian refugees in host countries, and epidemiological data from the Lebanese Ministry of Public Health Surveillance Unit and primary health-care network were reviewed. Lebanon has witnessed skin disorder outbreaks associated with the Refugee crisis, mainly leishmaniasis, scabies and lice infestations with little data about …

Outcome Of Inadvertent High Dose Bcg Administration In Newborns At A Tertiary Care Hospital, Karachi- Case Series, Sonia Qureshi, Khalil Ahmad, Paras Fatima, Rabia M. Hassan, Farheen Sherali, Naureen Lalani, Fyezah Jehan, Syed Asad Ali, Farah Qamar

Department of Paediatrics and Child Health

Bacillus Calmette-Guérin (BCG) vaccine is given to newborns soon after birth. BCG vaccine overdose has been rarely reported. Here we report the outcome of newborns who accidently received high dose BCG at a tertiary care hospital, Karachi. We reviewed records of 26 newborns, who accidentally received intradermal high dose BCG, used for the treatment of urinary bladder cancers and 80 times higher dose than the BCG used for routine vaccination. The incident happened from 14-16th April, 2016 at Aga Khan University Hospital, Karachi. Analysis was carried out using SPSS. A total of 23/26(88.5%) newborns were followed for atleast 3 months …

From Vaccine Vector To Oncomodulation: Understanding The Complex Interplay Between Cmv And Cancer., Nicole A. Wilski, Christopher M. Snyder

Department of Microbiology and Immunology Faculty Papers

Cytomegalovirus (CMV) is a herpesvirus that establishes a persistent, but generally asymptomatic, infection in most people in the world. However, CMV drives and sustains extremely large numbers of antigen-specific T cells and is, therefore, emerging as an exciting platform for vaccines against infectious diseases and cancer. Indeed, pre-clinical data strongly suggest that CMV-based vaccines can sustain protective CD8+ T cell and antibody responses. In the context of vaccines for infectious diseases, substantial pre-clinical studies have elucidated the effcacy and protective mechanisms of CMV-based vaccines, including in non-human primate models of various infections. In the context of cancer vaccines, however, much …

Antibiotic Resistance And Molecular Characterization Of Bacteremia Escherichia Coli Isolates From Newborns In The United States., Bryan K. Cole, Marko Ilikj, Cindy B. Mccloskey, Susana Chavez-Bueno

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Escherichia coli is a major cause of neonatal sepsis. Contemporary antibiotic resistance data and molecular characterization of neonatal E. coli bacteremia isolates in the US are limited.

METHODS: E. coli blood isolates, antibiotic susceptibility data, and clinical characteristics were obtained from prospectively identified newborns from 2006 to 2016. The E. coli isolates were classified using an updated phylogrouping method and multi-locus sequence typing. The presence of several virulence traits was also determined.

RESULTS: Forty-three newborns with E. coli bacteremia were identified. Mean gestational age was 32.3 (SD±5.4) weeks. Median age was 7 days (interquartile range 0-10). Mortality (28%) occurred …

Key Inflammatory Pathway Activations In The Mci Stage Of Alzheimer’S Disease, Jagan A. Pillai, Sean Maxwell, Lynn M. Bekris, Stephen M. Rao, Mark R. Chance, James B. Leverenz

Faculty Scholarship

Objective: To determine the key inflammatory pathways that are activated in the peripheral and CNS compartments at the mild cognitive impairment (MCI) stage of Alzheimer’s disease (AD). Methods: A cross-sectional study of patients with clinical and biomarker characteristics consistent with MCI-AD in a discovery cohort, with replication in the Alzheimer’s Disease Neuroimaging Initiative (ADNI) cohort. Inflammatory analytes were measured in the CSF and plasma with the same validated multiplex analyte platform in both cohorts and correlated with AD biomarkers (CSF Aβ42, total tau (t-tau), phosphorylated tau (p-tau) to identify key inflammatory pathway activations. The pathways were additionally validated by evaluating …

Dysphagia Screening To Prevent Hospital-Acquired Pneumonia Rates, Namneet Sekhon

Dissertations

Problem Pneumonia is a leading cause of death worldwide and affects all ages. Pneumonia may be acquired by aspiration and a bedside nursing dysphagia screen may reduce hospital acquired pneumonia (HAP) rates for stroke patients. The aim of this study was to evaluate use of the dysphagia screen for all patients receiving a computed tomography (CT) scan of the head in the emergency department (ED).

Method An observational, descriptive design for all patients who received a CT of the head in the ED and admitted over a 60-day period. The rate of dysphagia screening with the DePaul Hospital Swallow Screen …

2019-2020 Pediatric Subspecialty Trainees, Children's Mercy Hospital

Residents and Fellows Portraits

Photo composites of the graduate pediatric trainees in allergy/immunology, child abuse pediatrics, child neurology, clinical child psychology, developmental-behavioral pediatrics, epilepsy; headache medicine; hospice & palliative care, laboratory genetics & genomics, neonatal-perinatal medicine, pediatric adolescent gynecology, pediatric anesthesiology, pediatric bioethics, pediatric cardiology, pediatric clinical pharmacology, pediatric critical care medicine, pediatric cardiac congenital surgery; pediatric dentistry, pediatric emergency medicine, pediatric EM/child abuse; pediatric endocrinology, pediatric gastroenterology, pediatric hematology/oncology, pediatric hospital medicine, pediatric infectious diseases, pediatric nephrology, pediatric ophthalmology, pediatric optometry, pediatric otolaryngology, pediatric pulmonology, pediatric rehabilitation, pediatric sports medicine, pediatric surgery, pharmacy, sleep medicine, pediatric residency and med/peds residency.

When An Infected Meniscus Portends A Perforated Viscus, Michelle Hannon, Stephen Zachariah, Neha Bansal Etherington, Anusha Govind, Devin Weber, Bryan Hess

Division of Infectious Diseases and Environmental Medicine Faculty Papers

A 59-year-old woman with a status of post–renal transplant 7 years prior for autosomal dominant polycystic kidney disease on tacrolimus and mycophenolate mofetil presented with subacute left knee and right wrist pain. She received local steroid injections to both areas as an outpatient without improvement in her symptoms. She had recently traveled to India, her home country, to visit relatives. Aspiration of the knee revealed 4+ acid fast bacilli on smear, and she was taken for surgical debridement. She was started on empiric antibiotics for presumed infection with rapidly growing mycobacteria. Her course was complicated by acute onset abdominal pain …

Clinical Emergency Care Research In Low-Income And Middle-Income Countries: Opportunities And Challenges, Adam R. Aluisio, Shahan Waheed, Peter Cameron, Jermey Hess, Shevin Jacob, Niranjan Kissoon, Adam C. Levine, Asad Mian, Shammi Ramlakhan, Hendry R. Sawe, Junaid Razzak

Department of Emergency Medicine

Disease processes that frequently require emergency care constitute approximately 50% of the total disease burden in low-income and middle-income countries (LMICs). Many LMICs continue to deal with emergencies caused by communicable disease states such as pneumonia, diarrhoea, malaria and meningitis, while also experiencing a marked increase in non-communicable diseases, such as cardiovascular diseases, diabetes mellitus and trauma. For many of these states, emergency care interventions have been developed through research in high-income countries (HICs) and advances in care have been achieved. However, in LMICs, clinical research, especially interventional trials, in emergency care are rare. Furthermore, there exists minimal research on …

Comparison Of The Sequential Organ Failure Assessment (Sofa) And Quick Sofa Scores In Predicting In-Hospital Mortality Among Adult Critical Care Patients With Suspected Infection, Mohammed A. Said, Wangari Siika, Vitalis Mung’Ayi, Reena Shah

Internal Medicine, East Africa

Introduction: Sepsis is global health priority and the leading cause of death in critical care. The SEPSIS 3 criteria introduced in 2016 is the latest tool in diagnosing sepsis. It uses SOFA and qSOFA scores in place of the SIRS criteria for better ability to predict mortality in patients with suspected infections. The performance of these scores in critical care units outside high-income countries remains largely unknown.

Methods: We compared the performance of SOFA and qSOFA in predicting the in-hospital mortality of an adult critical care unit in Kenya. We conducted a retrospective review of all patients admitted …

Labrad : Vol 45, Issue 2 - July 2019, Aga Khan University Hospital, Karachi

LABRAD - Departments of Pathology & Laboratory Medicine and Radiology Archives

• Novel Molecular Technique for Identifying Respiratory Tract Pathogens
• Role of Serum Galactomannan (GM) Assay in Diagnosing Invasive Aspergillosis (IA)
• Factor VIII Inhibitor – A Diagnostic Approach
• PET/CT Hybrid Imaging Technology at Aga Khan University Hospital
• Diagnostic Tests for Von Willebrand Disease
• Iron Deficiency Anemia
• Sweat Testing for Diagnosis of Cystic Fibrosis
• Flow Cytometric Identification of Abnormal B-Cells
• Direct Immunofluorescence in Bullous Skin Disorders
• Radiology-Pathology Correlation; Orthopedic Pathology
• Fecal Elastase: A Marker For Exocrine Pancreatic Function
• Edward Syndrome: Rare Autosomal Aneuploidy
• Sirolimus in Renal Transplant
• Latest Trends in Clinical Laboratory Science Technology
• Radiology-Neuropathology Correlation
• Nuchal Translucency Scan
• Bio-risk Management System in …

Recognition Of Antibiotic Resistance In Spontaneous Bacterial Peritonitis Caused By Escherichia Coli In Liver Cirrhotic Patients In Civil Hospital Karachi, Pooja D. Kirplani, Laila Tul Qadar, Rohan Kumar Ochani, Zahid Ali Memon, Syeda Anjala Tahir, Khalid Imran, Naresh Kumar Seetlani, Amanullah Abbasi, Mahaish Kumar, Piyar Ali

Section of Internal Medicine

Introduction Spontaneous bacterial peritonitis (SBP) is the most common life-threatening infection in patients with ascites due to liver cirrhosis. The infection is most commonly caused by the bacterium Escherichia coli, commonly referred to as E. coli. Over the past few years, the incidence of antimicrobial resistance against E. coli has risen drastically, leading to increased morbidity and mortality. Methods This cross-sectional study was conducted to determine the pattern of resistance using variations of antibiotics against E. coli, to prevent its empirical usage and initiate an appropriate target antibiotic therapy. The data were collected from May 2017 to October 2017 and …

Evidence-Based Cardiac Monitoring: A Practice Change, Joseph Paul Urbanski

Doctoral Projects

Background: Overuse of cardiac monitoring (CM) in acute care settings contributes to increased healthcare spending and cost of services for patients. Additionally, inappropriate use of CM can contribute to wastefulness of healthcare resources, increases in hospital staff workloads, and can be improved with best evidence-based practice recommendations. A Midwest acute care hospital lacked an evidence-based, systematic method to define care for patients requiring CM.

Objective: The purpose of the project was to pilot an evidence-based CM change initiative, determine feasibility for sustainment, and propose next steps for adoption of the change initiative across non-emergency department, non-intensive care inpatient CM units …

Ralstonia Pickettii Bacteremia: An Emerging Infection In A Tertiary Care Hospital Setting, Nosheen Nasir, Muneeba Ahsan Sayeed, Bushra Jamil

Section of Internal Medicine

Ralstonia species are Gram-negative bacilli that have increasingly been recognized as emerging nosocomial pathogens, particularly in immunocompromised hosts. Ralstonia pickettii is the most clinically important pathogen from the Ralstonia genus. Nosocomial outbreaks of Ralstonia pickettii infections brought about by the use of contaminated medical solutions, including saline, sterile water, as well as disinfectants, have been reported. There have been case reports of invasive infections with variable presentations. Here, we describe three cases of Ralstonia pickettii bacteremia during a period of one year in a tertiary care hospital in Karachi, Pakistan. The first case was a 76-year-old male, known case of …

The Concentration Of Total Nucleated Cells In Harvested Bone Marrow For Transplantation Has Decreased Over Time., Nicole L. Prokopishyn, Brent R. Logan, Deidre M. Kiefer, Jennifer A. Sees, Pintip Chitphakdithai, Ibrahim A. Ahmed, Paolo N. Anderlini, Amer M. Beitinjaneh, Christopher Bredeson, Jan Cerny, Saurabh Chhabra, Andrew Daly, Miguel Angel Diaz, Nosha Farhadfar, Haydar A. Frangoul, Siddhartha Ganguly, Dennis A. Gastineau, Usama Gergis, Gregory A. Hale, Peiman Hematti, Rammurti T. Kamble, Kimberly A. Kasow, Hillard M. Lazarus, Jane L. Liesveld, Hemant S. Murthy, Maxim Norkin, Richard F. Olsson, Mona Papari, Bipin N. Savani, Jeffrey Szer, Edmund K. Waller, Baldeep Wirk, Jean A. Yared, Michael A. Pulsipher, Nirali N. Shah, Galen E. Switzer, Paul V. O'Donnell, Dennis L. Confer, Bronwen E. Shaw

Manuscripts, Articles, Book Chapters and Other Papers

Bone marrow (BM) is an essential source of hematopoietic stem cell grafts for many allogeneic hematopoietic cell transplant (HCT) recipients, including adult patients (for specific diseases and transplantation strategies) and the majority of pediatric recipient. However, since the advent of granulocyte colony-stimulating factor-mobilized peripheral blood stem cell (PBSC) grafts, there has been a significant decrease in the use of BM in HCT, thought to be due mainly to the increased logistical challenges in harvesting BM compared with PBSCs, as well as generally no significant survival advantage of BM over PBSCs. The decreased frequency of collection has the potential to impact …

Invasive Cryptococcal Meningitis Presenting As A Skull Base Mass In An Immunocompetent Host: A Case Report., Joshua Prickett, Juan J Altafulla, Anna Knisely, Zachary Litvack

Articles, Abstracts, and Reports

No abstract provided.

Increasing Actual And Perceived Burden Of Tick-Borne Disease In Maine, Robert P. Smith Md Mph, Carol A. Mccarthy Md, Susan P. Elias Phd

Journal of Maine Medical Center

Introduction: The burden of tick-borne disease (TBD) in Maine has steadily increased since the first case of Lyme disease was reported in the late 1980s. The emergence of five different agents of TBD in Maine has been challenging and confusing for clinicians and the public.

Methods: We reviewed the ecology of emerging of tick -borne disease, then reviewed risk factors for tick bites and tick-borne disease in Maine. We then compared the burden of TBD versus community-acquired comparison infections in terms of hospitalizations, deaths, and media attention.

Results and Discussion: In Maine, risk of exposure to bites from the vector …

Signs Of Psychosis Leading To A Diagnosis Of Progressive Multifocal Leukoencephalopathy: A Case Report, Bryan L. Walker, Christina Holt Md, Msc

Journal of Maine Medical Center

Introduction: Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating process of the central nervous system that occurs in in the setting of severe immunocompromise. Patients with PML develop varying focal neurological deficits and mental status changes that have not been well-described previously.

Clinical findings: We present a patient who was found by security wandering the lobby of this hospital. He was oriented only to self and unable to state a reason for presentation. Medical records were limited and included a visit to an outside hospital that documented a past medical history of HIV infection. He exhibited multiple signs of psychosis …

Correlation Between Proper Antibiotics Administration To Community Acquired Pneumonia Patients Based On Alur Gyssens With Clinical Response, Cleopas Martin Rumende, Lie Khie Chen, Anis Karuniawati, Joyce Bratanata, Rezyta Falasiva, Truly Panca Sitorus, Erwin Christian Susanto

Jurnal Penyakit Dalam Indonesia

Introduction. The proper of antibiotics treatment will increase the improvement of the patient with community-acquired pneumonia (CAP) and also counteract antimicrobial resistance. Community-Acquired Pneumonia is commonly found in Indonesia with an incidence of 2.4%. This study aimed to determine the proper of antibiotic selection for CAP based on IDSA-ATS 2007 guidelines with Gyssens method and evaluate the relationship between the proper of antibiotic treatment with the clinical response of patients. Methods. A retrospective cohort study was conducted with secondary data from the previous study. Study was conducted in three hospitals in Jakarta, namely Cipto Mangunkusumo General Hospital, Budhi Asih Hospital, …

Dapsone Hypersensitivity Syndrome Overlaps Reversal Reaction In Leprosy Patient, Chesia Christiani Liuwan, Medhi Denisa, M Yulianto Listiawan

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Leprosy is a chronic granulomatous infectious disease that primarily involves the skin and peripheral nerve and is caused by Mycobacterium leprae. Clinical features may vary depending on the patient’s immune response. Reversal reaction due to increased immunity is common after treatment in patients with borderline leprosy. Dapsone hypersensitivity syndrome (DHS) is an adverse effect from dapsone therapy that may occur in 5-6 weeks to 6 months after initial treatment.

Case Illustration: A 47-year-old female complained of a spreading red patches on the skin of her trunk and extremities for three weeks duration. She also felt itchiness and …

Recurrent Perianal Wart Therapy With 90% Trichloroacetate (Tca) Solution In Aids Patients, Sri Linuwih Sw Menaldi, Ika Anggraini, Hanny Nilasari

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Being the most commonly found sexually-transmitted infection (STI), anogenital warts are mainly caused by human papilloma virus (HPV) type 6 and 11. These infections are often recurrent, leading to loss of time and medical expenses. Various therapeutic modalities can be chosen singularly or in combination with varying results. Treatments with less responsive results usually occur when acquired comorbidities are present, such as HIV infection.

Case Illustration: A 28-year-old homosexual male was reported to have a recurrent perianal wart for the duration of eight months. He was also diagnosed with AIDS and pulmonary tuberculosis. Initially, patient was treated …

Association Between Silica Dust Exposure And Serum Transforming Growth Factor-Β1 In Stone Quarry Workers, I Putu Eka Krisnha Wijaya, Ida Bagus Ngurah Rai, I Putu Andrika

Jurnal Penyakit Dalam Indonesia

Introduction. Silicosis is a disease that most often occurred as a result of silica dust exposure. Silica dust particles will stimulate alveolar macrophages to secrete proinflammatory mediators for fibroblast proliferation and collagen deposition. TGF-ß1 is one of the most extensively involved mediators in the development of fibrosis. To date, several studies have not shown consistent results regarding the association between silica dust exposure and TGF-β1. This study examined silica dust exposure and serum TGF-β1, which aims to determine the risk of silicosis in stone quarry workers. Methods. An analytic cross-sectional study was conducted at Company X, Karangasem in March 2016. …

Role Of Gp120 Glycosylation In Sexual Transmission Of Hiv, Yingxue Sun, Adam Meadows, Najwa Zebian, Eric Arts, Carole Creuzenet

Western Research Forum

Background:

In chronic HIV patients, the viral populations are genetically diverse due to mutations introduced by the viral reverse transcriptase during HIV replication. However, more than 80% new infections result from single transmission founder (TF) viruses; therefore, targeting the TFs is key to control AIDS worldwide.

Gp120 is a glycosylated envelope protein required for HIV infection, propagation, and transmission. Glycans on gp120 influence HIV infectivity through their interactions with lectins, the carbohydrate-binding immune proteins in the host mucosa. To transmit sexually, viruses must overcome the lectin traps to access more target T cells.

Hypothesis:

TF viruses are less likely to …

Epilepsy Diagnosis And Management Of Children In Kenya: Review Of Current Literature, Pauline Samia, Jane Hassell, Jessica-Anne Hudson, Symon M. Kariuki, Charles R. Newton, Jo M. Wilmshurst

Paediatrics and Child Health, East Africa

Introduction: The growing impact of non-communicable diseases in low- to middle-income countries makes epilepsy a key research priority. We evaluated peer-reviewed published literature on childhood epilepsy specific to Kenya to identify knowledge gaps and inform future priorities.

Methodology: A literature search utilizing the terms “epilepsy” OR “seizure” as exploded subject headings AND “Kenya” was conducted. Relevant databases were searched, generating 908 articles. After initial screening to remove duplications, irrelevant articles, and publications older than 15 years, 154 papers remained for full-article review, which identified 35 publications containing relevant information. Data were extracted from these reports on epidemiology, etiology, clinical features, …

Phylogenetic Estimates Of Hiv-1 Gp120 Indel Rates Across The Group M Subtypes, John Palmer, Art Poon

Western Research Forum

Insertions and deletions (indels) in the HIV-1 envelope glycoprotein gp120 play a significant role in the evolution of HIV pathogenesis and transmission fitness. While substitution rates in HIV-1 are well characterized by phylogenetic models, there is a lack of quantitative measures of indel rates in HIV-1. Here we use a dated-tip phylogenetic analysis of gp120 sequences to estimate indel rates for 7 subtypes and CRFs of HIV-1 group M.

We obtained and processed 26,359 HIV-1 gp120 sequences from the Los Alamos National Laboratory HIV Sequence database. After filtering these sequences, we extracted the conserved and variable regions from the remaining …

Liver Cancer: A Leading Cause Of Cancer Death In The United States And The Role Of The 1945–1965 Birth Cohort By Ethnicity, Paulo S. Pinheiro, Karen E. Callahan, Patricia D. Jones, Cyllene Morris, Justine M. Ransdell, Deukwoo Kwon, Clyde Perry Brown, Erin N. Kobetz

Environmental & Global Health Faculty Research

No abstract provided.