Virus Diseases Commons^™

Low Absolute Risk Of Thrombotic And Cardiovascular Events In Outpatient Pregnant Women With Covid-19, Behnood Bikdeli, Darsiya Krishnathasan, Candrika Khairani, Antoine Bejjani, Julia Davies, Nicole Porio, Anthony Tristani, Andre Armero, Ali Assi, Victor Nauffal, Umberto Campia, Zaid Almarzooq, Eric Wei, Marcos Ortiz-Rios, Valeria Zuluaga-Sánchez, Aditya Achanta, Sirus Jesudasen, Bruce Tiu, Geno Merli, Orly Leiva, John Fanikos, Elvira Grandone, Aditya Sharma, Samantha Rizzo, Mariana Pfeferman, Ruth Morrison, Alec Vishnevsky, Judith Hsia, Mark Nehler, James Welker, Marc Bonaca, Brett Carroll, Samuel Goldhaber, Zhou Lan, Gregory Piazza

Division of Cardiology Faculty Papers

INTRODUCTION: Pregnancy may contribute to an excess risk of thrombotic or cardiovascular events. COVID-19 increases the risk of these events, although the risk is relatively limited among outpatients. We sought to determine whether outpatient pregnant women with COVID-19 are at a high risk for cardiovascular or thrombotic events.

MATERIALS & METHODS: We analyzed pregnant outpatients with COVID-19 from the multicenter CORONA-VTE-Network registry. The main study outcomes were a composite of adjudicated venous or arterial thrombotic events, and a composite of adjudicated cardiovascular events. Events were assessed 90 days after the COVID-19 diagnosis and reported for non-pregnant women ≤45 years, and …

Ischemic Colitis In A Middle-Aged Man With Covid-19: Case Report And Review Of Literature, Lara Appiah, Subhasis Misra, Stephen Jones

HCA Healthcare Journal of Medicine

Introduction

Coronavirus disease 2019 (COVID-19) was a pandemic that began in 2019 and continues to have morbid and deadly consequences throughout the world. During the beginning of the pandemic, many considered older adults and immunocompromised younger adults to be the only populations at risk for the severe consequences of COVID-19. Throughout the pandemic, this was proven wrong with several case reports and studies showing that relatively younger adults can also suffer serious consequences from this perplexing virus.

Case Presentation

We report a rare case of ischemic colitis in a 42-year-old obese man who presented to the emergency department with quintessential …

Evaluation Of The Efficacy Of Remdesivir For The Treatment Of Coronavirus Disease 2019, Alexandra Flannery, Anastasia Knecht, Koravangala Sundaresh

HCA Healthcare Journal of Medicine

Background

Coronavirus disease 2019 (COVID-19), caused by a novel coronavirus, SARS-CoV-2, has accounted for more than 1 000 000 deaths in the United States alone. In May 2020, the Food and Drug Administration issued an Emergency Use Authorization to allow the investigational use of intravenous remdesivir for the treatment of suspected or confirmed COVID-19 in hospitalized children and adults. Several other agents, such as hydroxychloroquine, dexamethasone, and tocilizumab have been investigated as potential treatment options; however, dexamethasone is currently the only agent that has been proven to reduce mortality in patients who require supplemental oxygen. The purpose of this study …

Broad-Spectrum Activity Of Membranolytic Cationic Macrocyclic Peptides Against Multi-Drug Resistant Bacteria And Fungi, Sandeep Lohan, Anastasia G. Konshina, Rakesh K. Tiwari, Roman G. Efremov, Innokentiy Maslennikov, Keykavous Parang

Pharmacy Faculty Articles and Research

The emergence of multidrug-resistant (MDR) strains causes severe problems in the treatment of microbial infections owing to limited treatment options. Antimicrobial peptides (AMPs) are drawing considerable attention as promising antibiotic alternative candidates to combat MDR bacterial and fungal infections. Herein, we present a series of small amphiphilic membrane-active cyclic peptides composed, in part, of various nongenetically encoded hydrophilic and hydrophobic amino acids. Notably, lead cyclic peptides 3b and 4b showed broad-spectrum activity against drug-resistant Gram-positive (MIC = 1.5–6.2 µg/mL) and Gram-negative (MIC = 12.5–25 µg/mL) bacteria, and fungi (MIC = 3.1–12.5 µg/mL). Furthermore, lead peptides displayed substantial antibiofilm action comparable …

Paradigm Shift: A Meta-Narrative Review Of The Intricacies And Complications That Led To Changes In Standard Protocols For Primary Human Papillomavirus Screenings, Hillary L. Campbell, Sara N. Fernandez, Elysse S. Hodges, Jonathan J. Del Real, Mary Coolbaugh-Murphy Phd, Denise M. Juroske Short Phd

Research Methods Poster Session 2024

Objective:

To evaluate cervical cancer screening modalities and assess the reasoning that has led to primary HPV being the preferred target for screening.

Background:

History of HPV infection has been found to be correlated with cervical cancer precursor cells. Early detection of the infection is advantageous in decreasing the risk for women of reproductive age acquiring cervical cancer. The general consensus places an emphasis on implementing HPV testing in accordance with cervical cancer protocol.

Methods:

Six methodical reviews of cervical cancer screenings were done through PubMed and the M.D. Anderson Research library. Each article was evaluated to include recently published …

Ensemble-Based Mutational Profiling And Network Analysis Of The Sars-Cov-2 Spike Omicron Xbb Lineages For Interactions With The Ace2 Receptor And Antibodies: Cooperation Of Binding Hotspots In Mediating Epistatic Couplings Underlies Binding Mechanism And Immune Escape, Nishank Raisinghani, Mohammed Alshahrani, Grace Gupta, Gennady M. Verkhivker

Mathematics, Physics, and Computer Science Faculty Articles and Research

In this study, we performed a computational study of binding mechanisms for the SARS-CoV-2 spike Omicron XBB lineages with the host cell receptor ACE2 and a panel of diverse class one antibodies. The central objective of this investigation was to examine the molecular factors underlying epistatic couplings among convergent evolution hotspots that enable optimal balancing of ACE2 binding and antibody evasion for Omicron variants BA.1, BA2, BA.3, BA.4/BA.5, BQ.1.1, XBB.1, XBB.1.5, and XBB.1.5 + L455F/F456L. By combining evolutionary analysis, molecular dynamics simulations, and ensemble-based mutational scanning of spike protein residues in complexes with ACE2, we identified structural stability and binding …

Exploring Disparities In Prep Prescriptions For High-Risk Hiv Patients Using Real-World Data, Andrew Murdock, Farah Pathan, Sibyl Munson, Fabian D'Souza

Tower Health Research Day

No abstract provided.

Detecting The 2-Micron Plasmid In Saccharomyces Cerevisiae, Caitlin C. Allen, Eric T. Gillock

SACAD: Scholarly Activities

This research is a continuation of work started by a previous student, Camryn Greving. Camryn was screening for the presence of the 2-micron plasmid using PCR primers specific for the REP2 gene, devised by Nakayashiki et al. In this research, we confirmed the presence of the plasmid by using primers specific for the RAF1 gene, which were designed by Strope et al.

Sub-Saharan Africa’S Handling Of Covid-19 Pandemic: Rwanda Versus Tanzania, Luke D. Baumel

Honors Undergraduate Conference

How has the Covid-19 outbreak in early 2020 and the pandemic that followed been handled in Sub-Saharan Africa? What was done well and what was done poorly and why? What are the implications of the way it was handled? These questions and more are answered throughout this paper, using Rwanda as an example of a Sub-Saharan African country who handled it relatively well and neighboring Tanzania as an example of a Sub-Saharan African country that mishandled the outbreak and pandemic. In early 2021, most Sub-Saharan African countries had been afflicted by Covid-19 at a relatively lower rate than many Western …

Covid-19 Vaccination In Patients With Inborn Errors Of Immunity Reduces Hospitalization And Critical Care Needs Related To Covid-19: A Usidnet Report, John Mcdonnell, Kimberley Cousins, M. Elizabeth M. Younger, Adam Lane, Hassan Abolhassani, Roshini S. Abraham, Salem Al-Tamemi, Juan Carlos Aldave-Becerra, Eman Hesham Al-Faris, Alberto Alfaro-Murillo, Suzan A. Alkhater, Nouf Alsaati, Alexa Michelle Altman Doss, Melissa Anderson, Ernestina Angarola, Barbara Ariue, Danielle E. Arnold, Amal H. Assa'ad, Caner Aytekin, Meaghan Bank, Jenna R.E. Bergerson, Jack Bleesing, John Boesing, Carolina Bouso, Nicholas Brodszki, Diana Cabanillas, Carol Cady, Meghan A. Callahan, Luke Wall, Et Al

School of Medicine Faculty Publications

BACKGROUND: The CDC and ACIP recommend COVID-19 vaccination for patients with inborn errors of immunity (IEI). Not much is known about vaccine safety in IEI, and whether vaccination attenuates infection severity in IEI. OBJECTIVE: To estimate COVID-19 vaccination safety and examine effect on outcomes in patients with IEI. METHODS: We built a secure registry database in conjunction with the US Immunodeficiency Network to examine vaccination frequency and indicators of safety and effectiveness in IEI patients. The registry opened on January 1, 2022, and closed on August 19, 2022. RESULTS: Physicians entered data on 1245 patients from 24 countries. The most …

Formulation, Characterization, And In Vivo Immunogenicity Evaluation Of Heat-Stabilized Dissolvable Polymeric Microneedles, Aidan Lane Leyba

Biomedical Engineering ETDs

Since its introduction, vaccination has improved health outcomes tremendously. However, modern vaccination efforts are still difficult to implement, particularly in developing countries with warm climates. This includes complex and expensive cold-chain management of vaccines to maintain stability, a lack of medical personnel to administer parental vaccines, and needle phobia. As an alternative, dissolvable microneedles have recently been studied for their simple and painless application. In this thesis, I present a novel manufacturing process for polymer-based dissolvable microneedles, loaded with virus-like particles vaccines conjugated to TRIO or Sialokinin peptides to target malaria and arboviruses, respectively. We have performed multiple characterization studies …

Non-Thermal Plasma Reduces Hsv-1 Infection Of And Replication In Hacat Keratinocytes In Vitro, Julia Sutter, Jascha Brettschneider, Brian Wigdahl, Peter Bruggeman, Fred Krebs, Vandana Miller

Kimmel Cancer Center Faculty Papers

Herpes simplex virus type 1 (HSV-1) is a lifelong pathogen characterized by asymptomatic latent infection in the trigeminal ganglia (TG), with periodic outbreaks of cold sores caused by virus reactivation in the TG and subsequent replication in the oral mucosa. While antiviral therapies can provide relief from cold sores, they are unable to eliminate HSV-1. We provide experimental results that highlight non-thermal plasma (NTP) as a new alternative therapy for HSV-1 infection that would resolve cold sores faster and reduce the establishment of latent infection in the TG. Additionally, this study is the first to explore the use of NTP …

In Silico Analysis Of C-Type Lectins As Co-Infection Receptors Of Dengue And Chikungunya Viruses In Aedes Aegypti, Munawir Sazali, R. C. Hidayat Soesilohadi, Nastiti Wijayanti, Tri Wibawa, Arif Nur Muhammad Ansori

Makara Journal of Science

Aedes aegypti is a primer vector of dengue virus (DENV) and chikungunya virus (CHIKV). The susceptibility of mosquitoes to DENV and CHIKV depends on their recognition receptor of pathogens. C-type lectins (CTLs) are an important mediator of virus infection in A. aegypti. This study aims to identify potential receptors and determine the binding affinity between ligand–receptor interaction, CTLs and virus envelopes (DENV-1, 2, 3, and 4 and CHIKV) interaction based on in silico analysis. Sample sequences were obtained from GenBank (NCBI), and 10 CTLs were acquired from VectorBase. Homology modeling based on a minimum standard of 20% was processed …

Development Of Solitary Keratoacanthoma From A Cutaneous Wart, Joshua M. Ninan, Veronica Salazar

Research Symposium

Background: Common cutaneous warts, referred to in medicine as verrucae vulgaris, are proliferative lesions caused by human papillomavirus. These lesions are mostly benign and usually resolve without incident, except in the case of the patient mentioned in this report. Our patient developed a solitary keratoacanthoma, currently accepted as a clinical variant of squamous cell carcinoma, as a result of several risk factors and traumatic exposure. The current literature does not have an established association of HPV with solitary keratoacanthomas. This case report explores the presentation and pathogenesis of solitary keratoacanthomas within the setting of HPV.

Case Presentation: 48-year-old Caucasian female …

Contralateral Second Dose Improves Antibody Responses To A 2-Dose Mrna Vaccination Regimen, Sedigheh Fazli, Archana Thomas, Abram E. Estrada, Hiro A. P. Ross, David Xthona Lee, Steven Kazmierczak, Mark K. Slifka, David Montefiori, William B. Messer, Marcel E. Curlin

OHSU-PSU School of Public Health Faculty Publications and Presentations

BACKGROUND. Vaccination is typically administered without regard to site of prior vaccination, but this factor may substantially affect downstream immune responses. METHODS. We assessed serological responses to initial COVID-19 vaccination in baseline seronegative adults who received second-dose boosters in the ipsilateral or contralateral arm relative to initial vaccination. We measured serum SARSCoV-2 spike–specific Ig, receptor-binding domain–specific (RBD-specific) IgG, SARS-CoV-2 nucleocapsid–specific IgG, and neutralizing antibody titers against SARS-CoV-2.D614G (early strain) and SARS-CoV-2.B.1.1.529 (Omicron) at approximately 0.6, 8, and 14 months after boosting. RESULTS. In 947 individuals, contralateral boosting was associated with higher spike-specific serum Ig, and this effect increased over time, …

Viral Epitope Scanning Reveals Correlation Between Seasonal Hcovs And Sars-Cov-2 Antibody Responses Among Cancer And Non-Cancer Patients, Salum J. Lidenge, Dicle Yalcin, Sydney J. Bennett, Owen Ngalamika, Brenda B. Kweyamba, Chacha J. Mwita, For Yue Tso, Julius Mwaiselage, John T. West, Charles Wood

School of Medicine Faculty Publications

Seasonal coronaviruses (HCoVs) are known to contribute to cross-reactive antibody (Ab) responses against SARS-CoV-2. While these responses are predictable due to the high homology between SARS-CoV-2 and other CoVs, the impact of these responses on susceptibility to SARS-CoV-2 infection in cancer patients is unclear. To investigate the influence of prior HCoV infection on anti-SARS-CoV-2 Ab responses among COVID-19 asymptomatic individuals with cancer and controls without cancers, we utilized the VirScan technology in which phage immunoprecipitation and sequencing (PhIP-seq) of longitudinal plasma samples was performed to investigate high-resolution (i.e., epitope level) humoral CoV responses. Despite testing positive for anti-SARS-CoV-2 Ab in …

Overview Of The Zoonotic Potential And Coinfection Of Sars-Cov-2 In Indonesia, Muhammad Khaliim Jati Kusala, Ni Luh Putu Indi Dharmayanti

Karbala International Journal of Modern Science

In the ASEAN region, Indonesia has the highest overall COVID-19 infection score. The SARS-CoV-2 pandemic first emerged in China and then transmitted sporadically throughout the world. Animals and humans can be infected with the corona virus, so this disease is classified as a zoonotic disease. This review aims to gather information regarding the potential of SARS-CoV-2 as a zoonotic disease and coinfections with several other pathogens in Indonesia. This study collected data demonstrating the potential for COVID-19 to be transmitted from humans to animals, as an evidenced by positive test results for the Bat Coronavirus Antigen in bats. Cats have …

Uncommon Presentation Of Kaposi Sarcoma In An Hiv-Negative Patient: A Case Report And Review Of The Literature, Hope Daskalakis, Nina M. Ventura, Joy Anne Lowry, Mara Weinstein Velez

Advances in Clinical Medical Research and Healthcare Delivery

Kaposi Sarcoma (KS) is a multifocal systemic disease first identified in 1872. It most commonly involves the skin, mucous membranes, lymph nodes, and gastrointestinal tract. There are four clinically distinct subtypes of KS that have been identified: Chronic or classic KS, African endemic KS, KS due to iatrogenic immunosuppression, and AIDS-related epidemic KS. The human herpesvirus 8 (HHV-8) has been implicated in all subtypes of KS. We present a unique case of KS in a 79-year-old male with a widespread distribution of skin lesions on his palms, soles, chest, and back. This case report highlights a novel presentation of classical …

Long Trimer-Immunization Interval And Appropriate Adjuvant Reduce Immune Responses To The Soluble Hiv-1-Envelope Trimer Base, Hongying Duan, Angela R Corrigan, Cheng Cheng, Andrea Biju, Christopher A Gonelli, Adam S Olia, I-Ting Teng, Kai Xu, Sijy O'Dell, Sandeep Narpala, Mike Castro, Leonid Serebryannyy, Jennifer Wang, Danealle K Parchment, Edward K Sarfo, Jelle Van Schooten, John-Paul Todd, Shuishu Wang, Darcy R Harris, Hui Geng, Alexander J Jafari, Vrc Production Program, Ruth A Woodward, Nicole A Doria-Rose, Kathryn E Foulds, Adrian B Mcdermott, Marit J Van Gils, Richard A Koup, Theodore C Pierson, Peter D Kwong, John R Mascola

Faculty, Staff and Student Publications

Soluble 'SOSIP'-stabilized HIV-1 envelope glycoprotein (Env) trimers elicit dominant antibody responses targeting their glycan-free base regions, potentially diminishing neutralizing responses. Previously, using a nonhuman primate model, we demonstrated that priming with fusion peptide (FP)-carrier conjugate immunogens followed by boosting with Env trimers reduced the anti-base response. Further, we demonstrated that longer immunization intervals further reduced anti-base responses and increased neutralization breadth. Here, we demonstrate that long trimer-boosting intervals, but not long FP immunization intervals, reduce the anti-base response. Additionally, we identify that FP priming before trimer immunization enhances antibody avidity to the Env trimer. We also establish that adjuvants Matrix …

Acute Neutrophilic Vasculitis (Leukocytoclasia) In 36 Covid-19 Autopsy Brains, Roy H. Rhodes, Gordon L. Love, Fernanda Da Silva Lameira, Maryam Sadough Shahmirzadi, Sharon E. Fox, Richard S. Vander Heide

School of Medicine Faculty Publications

Background: Hypercytokinemia, the renin-angiotensin system, hypoxia, immune dysregulation, and vasculopathy with evidence of immune-related damage are implicated in brain morbidity in COVID-19 along with a wide variety of genomic and environmental influences. There is relatively little evidence of direct SARS-CoV-2 brain infection in COVID-19 patients. Methods: Brain histopathology of 36 consecutive autopsies of patients who were RT-PCR positive for SARS-CoV-2 was studied along with findings from contemporary and pre-pandemic historical control groups. Immunostaining for serum and blood cell proteins and for complement components was employed. Microcirculatory wall complement deposition in the COVID-19 cohort was compared to historical control cases. Comparisons …