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Articles 31 - 60 of 68
Full-Text Articles in Virus Diseases
Evaluation Of Comparative Hiv Care Continuum Outcomes Following Three Years Of Program Implementation Of The Positivelinks Smartphone Intervention Among People With Hiv With And Without Substance Use, Jacqueline Hodges, Sylvia Caldwell, Kori Otero, Brooke Williams, Ben Elliott, Lauren Richey, Ava Lena Waldman, Rebecca Dillingham, Karen Ingersoll
Evaluation Of Comparative Hiv Care Continuum Outcomes Following Three Years Of Program Implementation Of The Positivelinks Smartphone Intervention Among People With Hiv With And Without Substance Use, Jacqueline Hodges, Sylvia Caldwell, Kori Otero, Brooke Williams, Ben Elliott, Lauren Richey, Ava Lena Waldman, Rebecca Dillingham, Karen Ingersoll
School of Medicine Faculty Publications
Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA
Id Fellow Quality Improvement Project Shows Gains In Oral Health Exams For People With Hiv, Terrence Park, Lauren Richey, Paula Seal
Id Fellow Quality Improvement Project Shows Gains In Oral Health Exams For People With Hiv, Terrence Park, Lauren Richey, Paula Seal
School of Medicine Faculty Publications
Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA
Compliance With Human Papillomavirus Vaccination At The Hiv Outpatient Program In New Orleans, Louisiana, Tat Yau, Maria Frontini, Michael Hagensee
Compliance With Human Papillomavirus Vaccination At The Hiv Outpatient Program In New Orleans, Louisiana, Tat Yau, Maria Frontini, Michael Hagensee
School of Medicine Faculty Publications
Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA
Weight Gain And Weight Loss Attempts Among People With Hiv(Pwh) In Louisiana, Lauren Richey, Jonathan Schroeder, Kyle Mistretta, Hui-Yi Lin, Connie Arnold, David Welsh, John Apolzan
Weight Gain And Weight Loss Attempts Among People With Hiv(Pwh) In Louisiana, Lauren Richey, Jonathan Schroeder, Kyle Mistretta, Hui-Yi Lin, Connie Arnold, David Welsh, John Apolzan
School of Medicine Faculty Publications
Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA
Effectiveness Of A Bivalent Mrna Vaccine Dose Against Symptomatic Sars-Cov-2 Infection Among U.S. Healthcare Personnel, September 2022–May 2023, Ian D. Plumb, Melissa Briggs Hagen, Ryan Wiegand, Ghinwa Dumyati, Christopher Myers, Karisa K. Harland, Anusha Krishnadasan, Jade James Gist, Glen Abedi, Katherine E. Fleming-Dutra, Nora Chea, Jane E. Lee, Melissa Kellogg, Alexandra Edmundson, Amber Britton, Lucy E. Wilson, Sara A. Lovett, Valerie Ocampo, Tiffanie M. Markus, Howard A. Smithline, Peter C. Hou, Lilly C. Lee, William Mower, Fernand Rwamwejo, Mark T. Steele, Stephen C. Lim, Walter A. Schrading, Brian Chinnock
Effectiveness Of A Bivalent Mrna Vaccine Dose Against Symptomatic Sars-Cov-2 Infection Among U.S. Healthcare Personnel, September 2022–May 2023, Ian D. Plumb, Melissa Briggs Hagen, Ryan Wiegand, Ghinwa Dumyati, Christopher Myers, Karisa K. Harland, Anusha Krishnadasan, Jade James Gist, Glen Abedi, Katherine E. Fleming-Dutra, Nora Chea, Jane E. Lee, Melissa Kellogg, Alexandra Edmundson, Amber Britton, Lucy E. Wilson, Sara A. Lovett, Valerie Ocampo, Tiffanie M. Markus, Howard A. Smithline, Peter C. Hou, Lilly C. Lee, William Mower, Fernand Rwamwejo, Mark T. Steele, Stephen C. Lim, Walter A. Schrading, Brian Chinnock
School of Medicine Faculty Publications
Background: Bivalent mRNA vaccines were recommended since September 2022. However, coverage with a recent vaccine dose has been limited, and there are few robust estimates of bivalent VE against symptomatic SARS-CoV-2 infection (COVID-19). We estimated VE of a bivalent mRNA vaccine dose against COVID-19 among eligible U.S. healthcare personnel who had previously received monovalent mRNA vaccine doses. Methods: We conducted a case-control study in 22 U.S. states, and enrolled healthcare personnel with COVID-19 (case-participants) or without COVID-19 (control-participants) during September 2022–May 2023. Participants were considered eligible for a bivalent mRNA dose if they had received 2–4 monovalent (ancestral-strain) mRNA vaccine …
Impact On The Volume Of Pathology Reports Before And During The Covid-19 Pandemic In Seer Cancer Registries, Amina Chtourou, Pamela V. Sanchez, Todd Golden, Huann Sheng Chen, Stephen M. Schwartz, Xiao Cheng Wu, Brenda Y. Hernandez, Jovanka N. Harrison, Lynne Penberthy, Serban Negoita
Impact On The Volume Of Pathology Reports Before And During The Covid-19 Pandemic In Seer Cancer Registries, Amina Chtourou, Pamela V. Sanchez, Todd Golden, Huann Sheng Chen, Stephen M. Schwartz, Xiao Cheng Wu, Brenda Y. Hernandez, Jovanka N. Harrison, Lynne Penberthy, Serban Negoita
School of Public Health Faculty Publications
Introduction: Health care procedures including cancer screening and diagnosis were interrupted due to the COVID-19 pandemic. The extent of this impact on cancer care in the United States is not fully understood. We investigated pathology report volume as a reflection of trends in oncology services pre-pandemic and during the pandemic. Methods: Electronic pathology reports were obtained from 11 U.S. central cancer registries from NCI’s SEER Program. The reports were sorted by cancer site and document type using a validated algorithm. Joinpoint regression was used to model temporal trends from January 2018 to February 2020, project expected counts from March 2020 …
Assessment Of First-Phase Covid-19 Pandemic In Europe Using Hierarchical Clustering Based On Principal Components Analysis, Sanjay Kumar, Evrim Oral
Assessment Of First-Phase Covid-19 Pandemic In Europe Using Hierarchical Clustering Based On Principal Components Analysis, Sanjay Kumar, Evrim Oral
School of Public Health Faculty Publications
It is of great interest for researchers to assess the COVID-19 pandemic in Europe. Grouping of COVID-19-affected regions is an effective way to monitor and optimize planning to combat the disease. This paper applied hierarchical clustering based on principal components analysis (HCPCA) to COVID-19 data from affected European countries. Considering several attribute indices, we obtained a new set of indicators using principal components analysis to aggregate and reduce the dimension of attribute indices of affected countries. Further, we obtained groups of affected countries subject to their similarity using hierarchical clustering to the reduced observations of new attributes indices of these …
Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec
Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec
School of Medicine Faculty Publications
Background: Kaposi sarcoma (KS) is a neoplastic disease etiologically associated with infection by the Kaposi sarcoma-associated herpesvirus (KSHV). KS manifests primarily as cutaneous lesions in individuals due to either age (classical KS), HIV infection (epidemic KS), or tissue rejection preventatives in transplantation (iatrogenic KS) but can also occur in individuals, predominantly in sub-Saharan Africa (SSA), lacking any obvious immune suppression (endemic KS). The high endemicity of KSHV and human immunodeficiency virus-1 (HIV) co-infection in Africa results in KS being one of the top 5 cancers there. As with most viral cancers, infection with KSHV alone is insufficient to induce tumorigenesis. …
Sars-Cov-2 Infection In Unvaccinated High-Risk Pregnant Women In The Bronx, Ny, Usa Is Associated With Decreased Apgar Scores And Placental Villous Infarcts, Sandra E. Reznik, Patricia M. Vuguin, Alexa Cohen, Rasha Khoury, Olivier Loudig, Ridin Balakrishnan, Susan A. Fineberg, Francine Hughes, Malini Harigopal, Maureen J. Charron
Sars-Cov-2 Infection In Unvaccinated High-Risk Pregnant Women In The Bronx, Ny, Usa Is Associated With Decreased Apgar Scores And Placental Villous Infarcts, Sandra E. Reznik, Patricia M. Vuguin, Alexa Cohen, Rasha Khoury, Olivier Loudig, Ridin Balakrishnan, Susan A. Fineberg, Francine Hughes, Malini Harigopal, Maureen J. Charron
School of Medicine Faculty Publications
Babies born to severe acute respiratory syndrome corona virus-2 (SARS-CoV-2)-infected mothers are at greater risk for perinatal morbidity and more likely to receive a neurodevelopmental diagnosis in the first year of life. However, the effect of maternal infection on placental function and neonatal outcomes varies depending upon the patient population. We set out to test our hypothesis that maternal SARS-CoV-2 infection in our underserved, socioeconomically disadvantaged, mostly unvaccinated, predominantly African American and Latina population in the Bronx, NY would have effects evident at birth. Under IRB approval, 56 SARS-CoV-2-positive patients infected during the “first wave” of the pandemic with alpha …
The Role Of Gut Dysbiosis In The Loss Of Intestinal Immune Cell Functions And Viral Pathogenesis, Farzaneh Fakharian, Siva Thirugnanam, David A. Welsh, Woong Ki Kim, Jay Rappaport, Kyle Bittinger, Namita Rout
The Role Of Gut Dysbiosis In The Loss Of Intestinal Immune Cell Functions And Viral Pathogenesis, Farzaneh Fakharian, Siva Thirugnanam, David A. Welsh, Woong Ki Kim, Jay Rappaport, Kyle Bittinger, Namita Rout
School of Medicine Faculty Publications
The gut microbiome plays a critical role in maintaining overall health and immune function. However, dysbiosis, an imbalance in microbiome composition, can have profound effects on various aspects of human health, including susceptibility to viral infections. Despite numerous studies investigating the influence of viral infections on gut microbiome, the impact of gut dysbiosis on viral infection and pathogenesis remains relatively understudied. The clinical variability observed in SARS-CoV-2 and seasonal influenza infections, and the presence of natural HIV suppressors, suggests that host-intrinsic factors, including the gut microbiome, may contribute to viral pathogenesis. The gut microbiome has been shown to influence the …
Current Oral Hygiene And Recreational Behavioral Trends In Hiv Disease, Donald E. Mercante, Emily Guarisco, Elizabeth A. Lilly, Arni Rao, Kelly Treas, Clifford J. Beall, Zach Thompson, Ann L. Griffen, Eugene J. Leys, Jose A. Vazquez, Michael E. Hagensee, Paul L. Fidel
Current Oral Hygiene And Recreational Behavioral Trends In Hiv Disease, Donald E. Mercante, Emily Guarisco, Elizabeth A. Lilly, Arni Rao, Kelly Treas, Clifford J. Beall, Zach Thompson, Ann L. Griffen, Eugene J. Leys, Jose A. Vazquez, Michael E. Hagensee, Paul L. Fidel
School of Dentistry Faculty Publications
Objective: HIV disease is evolving with more HIV+ persons experiencing a high quality of life with well-controlled viremia. We recently enrolled a large cohort of HIV+ and clinically relevant HIV− persons for oral microbiome analyses that included a questionnaire related to oral hygiene and recreational behaviors. Here, the questionnaire responses were analyzed for behavioral trends within the cohort, together with trends over time by comparison to a previous geographically centered HIV+ cohort. Methods: Data were collected by questionnaire at baseline visits as cross-sectional assessments. Multivariable analyses were conducted for associations of HIV status as well as age, race, and sex, …
Researching Covid To Enhance Recovery (Recover) Adult Study Protocol: Rationale, Objectives, And Design, Leora I. Horwitz, Tanayott Thaweethai, Shari B. Brosnahan, Mine S. Cicek, Megan L. Fitzgerald, Jason D. Goldman, Rachel Hess, S. L. Hodder, Vanessa L. Jacoby, Michael R. Jordan, Jerry A. Krishnan, Adeyinka O. Laiyemo, Torri D. Metz, Lauren Nichols, Rachel E. Patzer, Anisha Sekar, Nora G. Singer, Lauren E. Stiles, Barbara S. Taylor, Shifa Ahmed, Heather A. Algren, Khamal Anglin, Lisa Aponte-Soto, Hassan Ashktorab, Ingrid V. Bassett, Brahmchetna Bedi, Nahid Bhadelia
Researching Covid To Enhance Recovery (Recover) Adult Study Protocol: Rationale, Objectives, And Design, Leora I. Horwitz, Tanayott Thaweethai, Shari B. Brosnahan, Mine S. Cicek, Megan L. Fitzgerald, Jason D. Goldman, Rachel Hess, S. L. Hodder, Vanessa L. Jacoby, Michael R. Jordan, Jerry A. Krishnan, Adeyinka O. Laiyemo, Torri D. Metz, Lauren Nichols, Rachel E. Patzer, Anisha Sekar, Nora G. Singer, Lauren E. Stiles, Barbara S. Taylor, Shifa Ahmed, Heather A. Algren, Khamal Anglin, Lisa Aponte-Soto, Hassan Ashktorab, Ingrid V. Bassett, Brahmchetna Bedi, Nahid Bhadelia
School of Medicine Faculty Publications
Importance SARS-CoV-2 infection can result in ongoing, relapsing, or new symptoms or other health effects after the acute phase of infection; termed post-acute sequelae of SARS-CoV-2 infection (PASC), or long COVID. The characteristics, prevalence, trajectory and mechanisms of PASC are ill-defined. The objectives of the Researching COVID to Enhance Recovery (RECOVER) Multi-site Observational Study of PASC in Adults (RECOVER-Adult) are to: (1) characterize PASC prevalence; (2) characterize the symptoms, organ dysfunction, natural history, and distinct phenotypes of PASC; (3) identify demographic, social and clinical risk factors for PASC onset and recovery; and (4) define the biological mechanisms underlying PASC pathogenesis. …
An Aerobic Exercise Intervention To Improve Metabolic Health Among People Living With Hiv With At-Risk Alcohol Use: The Alive-Ex Research Study Protocol, Liz Simon, Stefany D. Primeaux, Danielle E. Levitt, Brianna Bourgeois, Neil M. Johannsen, Adrianna Peters, Jameel Ahmed, Richard H. Marshall, Alexandra H. Fairchild, Tekeda F. Ferguson, Patricia E. Molina
An Aerobic Exercise Intervention To Improve Metabolic Health Among People Living With Hiv With At-Risk Alcohol Use: The Alive-Ex Research Study Protocol, Liz Simon, Stefany D. Primeaux, Danielle E. Levitt, Brianna Bourgeois, Neil M. Johannsen, Adrianna Peters, Jameel Ahmed, Richard H. Marshall, Alexandra H. Fairchild, Tekeda F. Ferguson, Patricia E. Molina
School of Medicine Faculty Publications
Background: Effective antiretroviral therapy (ART) in people living with HIV (PLWH) has improved life expectancy and increased risk of age-associated cardiometabolic comorbidities. At-risk alcohol use is more frequent among PLWH and increases the risk of health challenges. PLWH with at-risk alcohol use are more likely to meet criteria for prediabetes/diabetes and this is associated with impaired whole-body glucose-insulin dynamics. Methods: The Alcohol & Metabolic Comorbidities in PLWH: Evidence Driven Interventions Study (ALIVE-Ex Study, NCT03299205) is a longitudinal, prospective, interventional study to determine the effects of an aerobic exercise protocol on improving dysglycemia among PLWH with at-risk alcohol use. The intervention …
Echinomycin As A Promising Therapeutic Agent Against Kshv-Related Malignancies, Jungang Chen, Zhen Lin, Jiao Song, Karlie Plaisance-Bonstaff, Jennifer James, Shengyu Mu, Steven R. Post, Lu Dai, Zhiqiang Qin
Echinomycin As A Promising Therapeutic Agent Against Kshv-Related Malignancies, Jungang Chen, Zhen Lin, Jiao Song, Karlie Plaisance-Bonstaff, Jennifer James, Shengyu Mu, Steven R. Post, Lu Dai, Zhiqiang Qin
School of Medicine Faculty Publications
Kaposi’s sarcoma-associated herpesvirus (KSHV) is the etiologic agent of several human cancers, including Kaposi’s sarcoma (KS) and primary effusion lymphoma (PEL), which preferentially arise in immunocompromised patients while lack of effective therapeutic options. Oncoproteins Myc and hypoxia-inducible factor-1α (HIF1α) have been found closely related to KSHV infection, replication and oncogenesis. However, the strategies of dual targeting these two oncoproteins have never been developed and tested for treatments of KSHV-related malignancies. In the current study, we report that treatment of echinomycin dramatically regresses cell growth both in vitro-cultured KSHV + tumor cells and in vivo KS or PEL xenograft mice models, …
Independent Effects Of Hiv And Antiretroviral Therapy On The Oral Microbiome Identified By Multivariate Analyses, Clifford J. Beall, Elizabeth A. Lilly, Carolina Granada, Kelly Treas, Kenneth R. Dubois, Shahr B. Hashmi, Jose A. Vazquez, Michael E. Hagensee, Ann L. Griffen, Eugene J. Leys, Paul L. Fidel
Independent Effects Of Hiv And Antiretroviral Therapy On The Oral Microbiome Identified By Multivariate Analyses, Clifford J. Beall, Elizabeth A. Lilly, Carolina Granada, Kelly Treas, Kenneth R. Dubois, Shahr B. Hashmi, Jose A. Vazquez, Michael E. Hagensee, Ann L. Griffen, Eugene J. Leys, Paul L. Fidel
School of Dentistry Faculty Publications
The oral microbiome is an important predictor of health and disease. We recently reported significant yet modest effects of HIV under highly active antiretroviral therapy (ART) on the oral microbiome (bacterial and fungal) in a large cohort of HIV-positive (HIV+) and matched HIV-negative (HIV-) individuals. As it was unclear whether ART added to or masked further effects of HIV on the oral microbiome, the present study aimed to analyze the effects of HIV and ART independently, which also included HIV- subjects on preexposure prophylaxis (PrEP) therapy. Cross-sectional analyses of the effect of HIV devoid of ART (HIV+ ART- versus matched …
Upregulation Of Cell Surface Glycoproteins In Correlation With Kshv Lana In The Kaposi Sarcoma Tumor Microenvironment, Sara R. Privatt, Owen Ngalamika, Jianshui Zhang, Qinsheng Li, Charles Wood, John T. West
Upregulation Of Cell Surface Glycoproteins In Correlation With Kshv Lana In The Kaposi Sarcoma Tumor Microenvironment, Sara R. Privatt, Owen Ngalamika, Jianshui Zhang, Qinsheng Li, Charles Wood, John T. West
School of Medicine Faculty Publications
HIV-associated epidemic Kaposi sarcoma (EpKS) remains one of the most prevalent cancers in sub-Saharan Africa despite the widespread uptake of anti-retroviral therapy and HIV-1 suppression. In an effort to define potential therapeutic targets against KS tumors, we analyzed previously published KS bulk tumor transcriptomics to identify cell surface biomarkers. In addition to upregulated gene expression (>6-fold) in the EpKS tumor microenvironment, biomarkers were selected for correlation with KSHV latency-associated nuclear antigen (LANA) expression. The cell surface glycoprotein genes identified were KDR, FLT4, ADAM12, UNC5A, ZP2, and OX40, as well as the endothelial lineage determinants Prox-1 and CD34. Each protein …
Hpv-Related Anal Cancer Is Associated With Changes In The Anorectal Microbiome During Cancer Development, Jacob H. Elnaggar, Victoria O. Huynh, Daniel Lin, R. Tyler Hillman, Chike O. Abana, Molly B. El Alam, Katarina C. Tomasic, Tatiana V. Karpinets, Ramez Kouzy, Jae L. Phan, Jennifer Wargo, Emma B. Holliday, Prajnan Das, Melissa P. Mezzari, Nadim J. Ajami, Erica J. Lynn, Bruce D. Minsky, Van K. Morris, Andrea Milbourne, Craig A. Messick, Ann H. Klopp, P. Andrew Futreal, Cullen M. Taniguchi, Kathleen M. Schmeler, Lauren E. Colbert
Hpv-Related Anal Cancer Is Associated With Changes In The Anorectal Microbiome During Cancer Development, Jacob H. Elnaggar, Victoria O. Huynh, Daniel Lin, R. Tyler Hillman, Chike O. Abana, Molly B. El Alam, Katarina C. Tomasic, Tatiana V. Karpinets, Ramez Kouzy, Jae L. Phan, Jennifer Wargo, Emma B. Holliday, Prajnan Das, Melissa P. Mezzari, Nadim J. Ajami, Erica J. Lynn, Bruce D. Minsky, Van K. Morris, Andrea Milbourne, Craig A. Messick, Ann H. Klopp, P. Andrew Futreal, Cullen M. Taniguchi, Kathleen M. Schmeler, Lauren E. Colbert
School of Graduate Studies Faculty Publications
Background: Squamous cell carcinoma of the anus (SCCA) is a rare gastrointestinal cancer. Factors associated with progression of HPV infection to anal dysplasia and cancer are unclear and screening guidelines and approaches for anal dysplasia are less clear than for cervical dysplasia. One potential contributing factor is the anorectal microbiome. In this study, we aimed to identify differences in anal microbiome composition in the settings of HPV infection, anal dysplasia, and anal cancer in this rare disease. Methods: Patients were enrolled in two prospective studies. Patients with anal dysplasia were part of a cross-sectional cohort that enrolled women with high-grade …
Tocilizumab For Severe Covid-19 Infection And Multisystem Inflammatory Syndrome In Adults And Children, Amber N. Edinoff, Edward Sanders Alpaugh, Olivia Newgaard, Irza Wajid, Rachel J. Klapper, Elyse M. Cornett, Adam M. Kaye, Praneet Iyer, Alan D. Kaye
Tocilizumab For Severe Covid-19 Infection And Multisystem Inflammatory Syndrome In Adults And Children, Amber N. Edinoff, Edward Sanders Alpaugh, Olivia Newgaard, Irza Wajid, Rachel J. Klapper, Elyse M. Cornett, Adam M. Kaye, Praneet Iyer, Alan D. Kaye
School of Medicine Faculty Publications
Coronavirus disease 2019 (COVID-19) rapidly emerged as a global pandemic, placing imminent stress and burden on healthcare resources and workers worldwide. Many patients who present with a severe COVID-19 infection are at high risk of developing severe acute respiratory distress syndrome (ARDS), leading to a vast number of patients requiring mechanical ventilation and a high mortality rate. Similar to Middle East respiratory syndrome, COVID-19 demonstrates an initial viral replication phase that manifests as a variety of symptoms typically flu-like in nature, followed by a profound inflammatory response leading to rapid production of cytokines and uncontrolled inflammation. There have also been …
Circulating Plasma Exosomal Proteins Of Either Shiv-Infected Rhesus Macaque Or Hiv-Infected Patient Indicates A Link To Neuropathogenesis, Partha K. Chandra, Stephen E. Braun, Sudipa Maity, Jorge A. Castorena-Gonzalez, Hogyoung Kim, Jeffrey G. Shaffer, Sinisa Cikic, Ibolya Rutkai, Jia Fan, Jessie J. Guidry, David K. Worthylake, Chenzhong Li, Asim B. Abdel-Mageed, David W. Busija
Circulating Plasma Exosomal Proteins Of Either Shiv-Infected Rhesus Macaque Or Hiv-Infected Patient Indicates A Link To Neuropathogenesis, Partha K. Chandra, Stephen E. Braun, Sudipa Maity, Jorge A. Castorena-Gonzalez, Hogyoung Kim, Jeffrey G. Shaffer, Sinisa Cikic, Ibolya Rutkai, Jia Fan, Jessie J. Guidry, David K. Worthylake, Chenzhong Li, Asim B. Abdel-Mageed, David W. Busija
School of Medicine Faculty Publications
Despite the suppression of human immunodeficiency virus (HIV) replication by combined antiretroviral therapy (cART), 50–60% of HIV-infected patients suffer from HIV-associated neurocognitive disorders (HAND). Studies are uncovering the role of extracellular vesicles (EVs), especially exosomes, in the central nervous system (CNS) due to HIV infection. We investigated links among circulating plasma exosomal (crExo) proteins and neuropathogenesis in simian/human immunodeficiency virus (SHIV)-infected rhesus macaques (RM) and HIV-infected and cART treated patients (Patient-Exo). Isolated EVs from SHIV-infected (SHIV-Exo) and uninfected (CTL-Exo) RM were predominantly exosomes (particle size < 150 nm). Proteomic analysis quantified 5654 proteins, of which 236 proteins (~4%) were significantly, differentially expressed (DE) between SHIV-/CTL-Exo. Interestingly, different CNS cell specific markers were abundantly expressed in crExo. Proteins involved in latent viral reactivation, neuroinflammation, neuropathology-associated interactive as well as signaling molecules were expressed at significantly higher levels in SHIV-Exo than CTL-Exo. However, proteins involved in mitochondrial biogenesis, ATP production, autophagy, endocytosis, exocytosis, and cytoskeleton organization were significantly less expressed in SHIV-Exo than CTL-Exo. Interestingly, proteins involved in oxidative stress, mitochondrial biogenesis, ATP production, and autophagy were significantly downregulated in primary human brain microvascular endothelial cells exposed with HIV+/cART+ Patient-Exo. We showed that Patient-Exo significantly increased blood–brain barrier permeability, possibly due to loss of platelet endothelial cell adhesion molecule-1 protein and actin cytoskeleton structure. Our novel findings suggest that circulating exosomal proteins expressed CNS cell markers—possibly associated with viral reactivation and neuropathogenesis—that may elucidate the etiology of HAND.
Endogenous Mirna-Based Innate-Immunity Against Sars-Cov-2 Invasion Of The Brain, Walter J. Lukiw, Aileen I. Pogue
Endogenous Mirna-Based Innate-Immunity Against Sars-Cov-2 Invasion Of The Brain, Walter J. Lukiw, Aileen I. Pogue
School of Medicine Faculty Publications
The severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2), the causative agent of COVID-19, possesses an unusually large positive-sense, single-stranded viral RNA (ssvRNA) genome of about ~29,903 nucleotides (nt). In many respects, this ssvRNA resembles a very large, polycistronic messenger RNA (mRNA) possessing a 5′-methyl cap (m7GpppN), a 3′- and 5′-untranslated region (3′-UTR, 5′-UTR), and a poly-adenylated (poly-A+) tail. As such, the SARS-CoV-2 ssvRNA is susceptible to targeting by small non-coding RNA (sncRNA) and/or microRNA (miRNA), as well as neutralization and/or inhibition of its infectivity via the human body’s natural complement of about ~2650 miRNA species. Depending on host cell and tissue …
Implementation Of Mrsa Nasal Swabs As An Antimicrobial Stewardship Intervention To Decrease Anti-Mrsa Therapy In Covid-19 Infection, Alaina Dekerlegand, Emily Johnston, Britney Mellor, Melanie Rae Schrack, Catherine O’Neal
Implementation Of Mrsa Nasal Swabs As An Antimicrobial Stewardship Intervention To Decrease Anti-Mrsa Therapy In Covid-19 Infection, Alaina Dekerlegand, Emily Johnston, Britney Mellor, Melanie Rae Schrack, Catherine O’Neal
School of Medicine Faculty Publications
In the early stages of treating patients with SARS-CoV-2, limited information was available to guide antimicrobial stewardship interventions. The COVID-19 Task Force and Antimicrobial Stewardship Committee, at a 988-bed academic medical center, implemented the use of methicillin-resistant Staphylococcus aureus (MRSA) nasal swab polymerase chain reaction (PCR) testing to assist with the de-escalation of anti-MRSA therapy in patients with suspected superimposed bacterial pneumonia in COVID-19. A retrospective study was conducted to evaluate the impact of MRSA nasal swab PCR testing on the rate of anti-MRSA therapy between 13 April 2020 and 26 July 2020. A total of 122 patients were included …
Demonstrating New-Onset Or Worsened Sudomotor Function Post-Covid-19 On Comparative Analysis Of Autonomic Function Pre-And Post-Sars-Cov-2 Infection, Aditi Varma-Doyle, Nicole R. Villemarette-Pittman, Paul Lelorier, John England
Demonstrating New-Onset Or Worsened Sudomotor Function Post-Covid-19 On Comparative Analysis Of Autonomic Function Pre-And Post-Sars-Cov-2 Infection, Aditi Varma-Doyle, Nicole R. Villemarette-Pittman, Paul Lelorier, John England
School of Medicine Faculty Publications
Background: Autonomic dysfunction including sudomotor abnormalities have been reported in association with SARS-CoV-2 infection. Objective: There are no previous studies that have compared autonomic function objectively in patients pre- and post- SARS-CoV-2 infection. We aimed to identify if SARS-CoV-2 virus is triggering and/or worsening dysautonomia by comparing autonomic function tests in a group of patients pre-and post-SARS-CoV-2 infection. Design/methods: Six participants were enrolled and divided into two groups. The first group of 4 participants reported worsened autonomic symptoms post-SARS-CoV-2 infection. These individuals had their first autonomic test prior to COVID-19 pandemic outbreak (July 2019–December 2019). Autonomic function testing was repeated …
Therapeutic Approaches For Chronic Hepatitis C: A Concise Review, Allah Nawaz, Azhar Manzoor, Saeed Ahmed, Naveed Ahmed, Waseem Abbas, Mushtaq Ahmad Mir, Muhammad Bilal, Alisha Sheikh, Saleem Ahmad, Ishtiaq Jeelani, Takashi Nakagawa
Therapeutic Approaches For Chronic Hepatitis C: A Concise Review, Allah Nawaz, Azhar Manzoor, Saeed Ahmed, Naveed Ahmed, Waseem Abbas, Mushtaq Ahmad Mir, Muhammad Bilal, Alisha Sheikh, Saleem Ahmad, Ishtiaq Jeelani, Takashi Nakagawa
School of Medicine Faculty Publications
Hepatitis C virus (HCV) infection is a significant global health concern, prompting the need for effective treatment strategies. This in-depth review critically assesses the landscape of HCV treatment, drawing parallels between traditional interferon/ribavirin therapy historically pivotal in HCV management and herbal approaches rooted in traditional and complementary medicine. Advancements in therapeutic development and enhanced clinical outcomes axis on a comprehensive understanding of the diverse HCV genome, its natural variations, pathogenesis, and the impact of dietary, social, environmental, and economic factors. A thorough analysis was conducted through reputable sources such as Science Direct, PubMed, Scopus, Web of Science, books, and dissertations. …
Community Risks For Sars-Cov-2 Infection Among Fully Vaccinated Us Adults By Rurality: A Retrospective Cohort Study From The National Covid Cohort Collaborative, Alfred Jerrod Anzalone, Jing Sun, Amanda J. Vinson, William H. Beasley, William B. Hillegass, Kimberly Murray, Brian M. Hendricks, Melissa Haendel, Carol Reynolds Geary, Kristina L. Bailey, Corrine K. Hanson, Lucio Miele, Ronald Horswell, Julie A. Mcmurry, J. Zachary Porterfield, Michael T. Vest, H. Timothy Bunnell, Jeremy R. Harper, Bradley S. Price
Community Risks For Sars-Cov-2 Infection Among Fully Vaccinated Us Adults By Rurality: A Retrospective Cohort Study From The National Covid Cohort Collaborative, Alfred Jerrod Anzalone, Jing Sun, Amanda J. Vinson, William H. Beasley, William B. Hillegass, Kimberly Murray, Brian M. Hendricks, Melissa Haendel, Carol Reynolds Geary, Kristina L. Bailey, Corrine K. Hanson, Lucio Miele, Ronald Horswell, Julie A. Mcmurry, J. Zachary Porterfield, Michael T. Vest, H. Timothy Bunnell, Jeremy R. Harper, Bradley S. Price
School of Medicine Faculty Publications
Background While COVID-19 vaccines reduce adverse outcomes, post-vaccination SARS-CoV-2 infection remains problematic. We sought to identify community factors impacting risk for breakthrough infections (BTI) among fully vaccinated persons by rurality. Methods We conducted a retrospective cohort study of US adults sampled between January 1 and December 20, 2021, from the National COVID Cohort Collaborative (N3C). Using Kaplan-Meier and Cox-Proportional Hazards models adjusted for demographic differences and comorbid conditions, we assessed impact of rurality, county vaccine hesitancy, and county vaccination rates on risk of BTI over 180 days following two mRNA COVID-19 vaccinations between January 1 and September 21, 2021. Additionally, …
Incident Chlamydia Trachomatis Infection In A High School Population, Jacques M. Nsuami, Wato Nsa, Catherine L. Cammarata, David H. Martin, Stephanie N. Taylor
Incident Chlamydia Trachomatis Infection In A High School Population, Jacques M. Nsuami, Wato Nsa, Catherine L. Cammarata, David H. Martin, Stephanie N. Taylor
School of Medicine Faculty Publications
Prospective cohort studies of sexually transmitted infections (STIs) are logistically impractical owing to time and expenses. In schools, students are readily available for school-related follow-ups and monitoring. Capitalizing on the logistics that society already commits to ensure regular attendance of adolescents in school, a school-based STI screening in New Orleans made it possible to naturally observe the occurrence of chlamydia and to determine its incidence among 14–19-year-old adolescents. Among participants screened repeatedly, we calculated incidence rates, cumulative incidence, and incidence times. Male (n = 3820) and female (n = 3501) students were observed for 6251 and 5143 person-years, respectively, during …
Active And Passive Immunization With An Anti-Methamphetamine Vaccine Attenuates The Behavioral And Cardiovascular Effects Of Methamphetamine, Colin N. Haile, Kurt J. Varner, Xia Huijing, Reetakshi Arora, Frank M. Orson, Thomas R. Kosten, Therese A. Kosten
Active And Passive Immunization With An Anti-Methamphetamine Vaccine Attenuates The Behavioral And Cardiovascular Effects Of Methamphetamine, Colin N. Haile, Kurt J. Varner, Xia Huijing, Reetakshi Arora, Frank M. Orson, Thomas R. Kosten, Therese A. Kosten
School of Medicine Faculty Publications
Background: Methamphetamine use disorder (MUD) is a growing health concern with no FDA-approved treatment. The present series of studies build upon our previous work developing an anti-methamphetamine (MA) vaccine for MUD. We determined the effects of a formulation that included tetanus-toxoid (TT) conjugated to succinyl-methamphetamine (TT-SMA) adsorbed onto aluminum hydroxide (alum) in combination with the novel Toll-Like Receptor-5 agonist, entolimod. Methods: Mice were vaccinated (0, 3, 6 weeks) with TT-SMA+alum and various doses of entolimod to determine an optimal dose for enhancing immunogenicity against MA. Functional effects were then assessed using MA-induced locomotor activation in mice. Experiments using passive immunization …
Sars-Cov-2 Invasion And Pathological Links To Prion Disease, Walter J. Lukiw, Vivian R. Jaber, Aileen I. Pogue, Yuhai Zhao
Sars-Cov-2 Invasion And Pathological Links To Prion Disease, Walter J. Lukiw, Vivian R. Jaber, Aileen I. Pogue, Yuhai Zhao
School of Medicine Faculty Publications
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of the COVID-19 disease, is a highly infectious and transmissible viral pathogen that continues to impact human health globally. Nearly ~600 million people have been infected with SARS-CoV-2, and about half exhibit some degree of continuing health complication, generically referred to as long COVID. Lingering and often serious neurological problems for patients in the post-COVID-19 recovery period include brain fog, behavioral changes, confusion, delirium, deficits in intellect, cognition and memory issues, loss of balance and coordination, problems with vision, visual processing and hallucinations, encephalopathy, encephalitis, neurovascular or cerebrovascular insufficiency, and/or …
Implementation Of Multi-Level Interventions To Mitigate Risk Of Sars-Cov-2 Delta Variant At A Public University In Southern United States, Keena N. Arbuthnot, Rebecca C. Christofferson, Edward J. Trapido, John H. Pardue, John N. Perret, William F. Tate
Implementation Of Multi-Level Interventions To Mitigate Risk Of Sars-Cov-2 Delta Variant At A Public University In Southern United States, Keena N. Arbuthnot, Rebecca C. Christofferson, Edward J. Trapido, John H. Pardue, John N. Perret, William F. Tate
School of Public Health Faculty Publications
During the coronavirus disease 2019 (COVID-19) pandemic, navigating the implementation of public health measures in a politically charged environment for a large state entity was challenging. However, Louisiana State University (LSU) leadership developed and deployed an effective, multi-layered mitigation plan and successfully opened in-person learning while managing cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) during the fourth surge. We describe the plan to provide a framework for other institutions during this and future responses. The goals were 3-fold: maintain a quality learning environment, mitigate risk to the campus community, and ensure that LSU operations did not contribute to …
Sars-Cov-2 Neuroinvasion, Inflammatory Neurodegeneration And Alzheimer's Disease, Yuhai Zhao, Walter J. Lukiw
Sars-Cov-2 Neuroinvasion, Inflammatory Neurodegeneration And Alzheimer's Disease, Yuhai Zhao, Walter J. Lukiw
School of Medicine Faculty Publications
No abstract provided.
Microrna, The Innate-Immune System And Sars-Cov-2, James M. Hill, Walter J. Lukiw
Microrna, The Innate-Immune System And Sars-Cov-2, James M. Hill, Walter J. Lukiw
School of Medicine Faculty Publications
The single-stranded viral RNA (ssvRNA) known as the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes COVID-19 can be effectively inactivated by a number of natural ribonucleic acid-based host cell defenses. One of the most important of these defenses includes the actions of a class of small non-coding RNAs (sncRNAs) known as microRNAs (miRNAs). Via base-pair complementarity miRNAs are capable of specifically targeting ssvRNA sequences such as SARS-CoV-2 promoting its inactivation and neutralization. RNA-sequencing and bioinformatics analysis indicate that multiple naturally-occurring human miRNAs have extensive complementarity to the SARS-CoV-2 ssvRNA genome. Since miRNA abundance, speciation, and complexity vary significantly …