Diseases Commons^™

Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Background: In the United States (U.S.), falls are the leading cause of injury among adults 65 and over, resulting in 36 million falls yearly (Moreland et al., 2020). According to the Centers for Disease Control and Prevention (CDC, 2023), one in four older adults experiences a fall each year. Falls are the world's second most prominent cause of accidental deaths (World Health Organization [WHO], 2021). Falls are the leading cause of both fatal and non-fatal injuries among older adults (Moreland et al., 2020).

Methods: A quality improvement project that included a fall bundle was implemented in a primary clinic. A …

The Effectiveness Of The Lifestyle Medicine Residency Curriculum On Primary Care Residents’ Lifestyle Medicine Leadership, Knowledge, Assessment, And Management Skills, Karina Doucet, Emmanuel Morakinyo, Nicholas D'Angelo, Suzanne Perkins

South Atlantic Division GME Research Day 2024

No abstract provided.

Unveiling The Enigma: A Case Report Of Syndrome Of The Trephined Manifesting As Profound Somnolence, Kyle Drinnon, Muhammad T. Mourad, Muhammad Siddique

North Texas GME Research Forum 2024

The Syndrome of Trephined (SoT), also known as, "sinking skin flap syndrome," is a rare neurological complication that can occur after craniectomy. It can manifest with various reversible neurological symptoms such as headaches, mood changes, cognitive impairment, and focal neurological signs. The underlying pathophysiology of SoT is not completely understood but is believed to result from changes in intracranial and cerebrospinal fluid dynamics due to the loss of the protective cranial enclosure following craniectomy. Despite its rarity, healthcare providers should consider SoT as a possible diagnosis in patients who develop neurological deficits after undergoing decompressive craniectomy, even if their symptoms …

Subcutaneous Emphysema Of Unknown Etiology In A Young Healthy Adult Male: A Case Report, Charlie Wu, Teneme Konne

TriStar Division GME Research Day 2024

No abstract provided.

Anchoring Sepsis Management: A Retrospective Cohort Study On Fluid Resuscitation In Advanced And End-Stage Renal Disease With Sepsis, Hunter Reed, Abraheim Al-Nasseri, Adam Robarge, Uzman Kazi

West Florida Division GME Research Day 2024

No abstract provided.

Differences In Clinical Interventions And Outcomes In Septic Patients With Heart Failure A Prospective Single Center Experience From The Sepsisquad Investigators, Jose Rodriguez Castro, Manjot Malhi, Rafael Miret, Kristen Santana, Anna Feliszek, Kevin Gopala Rao, Lyanne Rolon, Garrett Wagner, Siddarth Kathuria, Raiko Diaz, Daniel Heller, Mauricio Danckers

East Florida Division GME Research Day 2024

No abstract provided.

Optimizing Ventilator-Associated Pneumonia Prevention And Education: In Adult Icu Settings, Danielle Gonzalez

Nursing | Senior Theses

Background: Ventilator associated pneumonia (VAP) in adult intensive care patient units (ICU) is one of the most common and deadly nosocomial infections today. Studies have identified a gap in intensive care nurse ventilator education and compliance with hospital protocols. Overall increasing the rates of VAP and morbidity. Hospitals worldwide have shown a decrease in VAP rates after inheriting "VAP-bundles''. This includes nurse specific interventions and assessments as a preventative measure. However, studies failed to demonstrate which bundle interventions directly correspond to the prevention of VAP. Purpose: Address all components of education, a nurse’s ability to properly identify and understand the …

Evaluating A High School Mrsa Prevention Program: A Case Study, Jamie Henning

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

MRSA poses a significant health risk to athletes nationwide. This case study examines the application of an online training module to address knowledge gaps regarding Methicillin-resistant Staphylococcus aureus (MRSA) among key decision-makers for high school athletes. It reviews the development and initial evaluation of a web-based training program designed to empower decision-makers with the knowledge to prevent MRSA infection and respond to suspected cases. Program evaluation recommended expanding the training module to wrestling staff with improved evaluation methods while continuing implementation and effectiveness assessment for the football staff. Despite initial data quality limitations, the online training module evaluation offered valuable …

Examining The Efficacy Of Treatments For Complex Regional Pain Syndrome, Michael Podcasy

Capstone Showcase

Complex Regional Pain Syndrome (CRPS) is a disease that affects the sensory, motor, sudomotor, vasomotor and trophic systems of patients. The pathophysiology is currently unknown and the diagnostic criteria that is used, the Budapest criteria, has its own shortcomings. This had led to hurdles in the research of the disease and well as a lack of high-quality studies on the efficacy of the many treatments currently being used to treat CRPS today. This poster explores those concepts.

The Role Of Micrornas In Cellular Senescence, Inflammation, And Cancer Induced By Childhood Obesity, Sarah S. Siddiqi

Honors Undergraduate Theses

Childhood obesity has escalated into a major public health crisis with serious implications for long-term health. As obesity rates among children continue to rise globally, it is crucial to understand its effects on cellular aging and inflammation—key processes that underpin many metabolic diseases. Obesity not only directly contributes to various metabolic disorders but also disrupts fundamental cellular mechanisms, accelerating aging and fostering systemic inflammation. By examining the impact of obesity on cellular aging and chronic inflammation, as well as the regulatory role of microRNAs (miRNAs) in these pathways, we have been able to identify critical biomarkers and molecular mechanisms involved …

Autonomic Modulation Of Cardiac Function In Hypertrophic Cardiomyopathy, Jenna Rose Disser

Dissertations, Master's Theses and Master's Reports

Hypertrophic cardiomyopathy (HCM) is the most common genetic heart disorder. HCM is characterized by cardiac hypertrophy, fibrosis, and an increased risk of fatal arrhythmias and sudden cardiac death. Previous studies in humans with HCM have demonstrated increased cardiac norepinephrine spillover and reduced beta-1 receptor (β1R) expression in the left ventricle (LV). We have previously demonstrated that cardiac sympathetic tone is elevated in an alpha-tropomyosin mutant mouse model of HCM. We hypothesized that HCM mice would demonstrate reduced β1R expression in the LV and attenuated heart rate (HR) and dP/dt max responses to ramped infusion of the β1R agonist, dobutamine. …

Survivorship, Outcomes, And Risk Factors For Conversion To Total Hip Arthroplasty After Revision Hip Arthroscopic Surgery In Obese Patients: Results At A Minimum 5-Year Follow-Up, Peng Li, Jie Luo, Zilong Zheng, Lu Meng, Anqi Zhang, Wei Cao, Xiaomei Gong

Faculty, Staff and Student Publications

OBJECTIVE: A high number of Non-Small Cell Lung Cancer (NSCLC) patients with brain metastasis who have not had surgery often have a negative outlook. Radiotherapy remains a most common and effective method. Nomograms were developed to forecast the cancer-specific survival (CSS) and overall survival (OS) in NSCLC individuals with nonoperative brain metastases who underwent radiotherapy.

METHODS: Information was gathered from the Surveillance, Epidemiology, and End Results (SEER) database about patients diagnosed with NSCLC who had brain metastases not suitable for surgery. Nomograms were created and tested using multivariate Cox regression models to forecast CSS and OS at intervals of 1, …

A Suspected Case Of Levetiracetam Induced Rhabdomyolysis, Luke Merrill Ms, Layne Hohn Ms, Marlee Jones Ms, Sydney Gibson Ms, Ty Moody Md, Anthony Breemo Md

Aesculapius Journal (Health Sciences & Medicine)

Background: Levetiracetam is a broad-spectrum antiseizure drug which works to terminate convulsions and is used in the treatment of certain types of seizures. It is commonly used to treat epilepsy in adults, and has proven an effective treatment for adults with focal seizures. This drug is normally well tolerated, but commonly reported adverse effects include fatigue, somnolence, and dizziness. A few less common effects have been noted as well, including behavioral disturbances, thrombocytopenia, and—in very few cases—rhabdomyolysis.

Case Report: Our case reports a 55-year-old male who presented to a rural emergency department for active convulsing and unresponsiveness. Initial …

Prevalence And Clinical Characteristics Of Temporomandibular Disorders In Adults: An Epidemiological Study In The Mediterranean Region Of Türkiye, Esra Yavuz, Selmi Yardimci, Humeyra Tercanli

Journal of Dentistry Indonesia

The prevalence and clinical characteristics of temporomandibular disorders (TMD) in the Mediterranean region of Türkiye have not yet been thoroughly investigated. Objective: This study aimed to determine the prevalence and severity of TMD in a sample of the population in this region and to characterize the clinical findings related to TMD. Methods: Four hundred and one participants were included in this study. “Presence of TMD” in the participants was evaluated using the Fonseca Anamnestic Index. Through clinical examination, the findings in the participants were classified as limited mouth opening, deviation, temporomandibular joint (TMJ) sounds, TMJ pain, and muscle …

Mental Health Differences In Medical Students Based On Curriculum And Gender, Maxim Jestin, Shelly Sharma, Deval Jhaveri, Brittany Mitchell, Dean Micciche, Venkat Venkataraman, Kathryn Lambert

Rowan-Virtua School of Osteopathic Medicine Departmental Research

BACKGROUND: The prevalence of mental health struggles among students in medical school is widely reported; however, little is known about how it is impacted by the medical school curriculum. This study aimed to evaluate differences in anxiety, depression, and emotional exhaustion in medical students based on gender, class year, and curriculum.

METHODS: An anonymous online survey consisting of questions from established, validated questionnaires about demographics, anxiety, depression, emotional exhaustion, and personal health behaviors was sent to 817 medical students who attended Rowan-Virtua School of Osteopathic Medicine during the Spring of 2021. When applying to this school, each of these students …

First-Generation Cephalosporins For Treatment Of Acute Hematogenous Osteomyelitis In Children: A Study Of Efficacy And Adverse Effects, Lisa Hiskey, Hiba Saifuddin, Emily R. Levy, Roland Hentz, Nipunie S. Rajapakse, Laura M. Dinnes, Elizabeth H. Ristagno

School of Medicine Faculty Publications

BACKGROUND: Acute hematogenous osteomyelitis (AHO) is a relatively infrequent but significant infection in pediatric patients. As is the most common cause of AHO, intravenous and oral first-generation cephalosporins are common therapies. Cephalexin is a commonly prescribed oral therapy for pediatric AHO, although it requires frequent dosing that may affect adherence. Cefadroxil is a comparable oral first-generation cephalosporin with a more desirable dosing schedule. METHODS: We reviewed pediatric patients admitted to Mayo Clinic between March 2002 and September 2020 for management of AHO who received treatment with a first-generation cephalosporin. We reviewed timing of oral therapy transition, therapy-associated adverse effects, and …

Applications Of Causal Inference Methods For The Estimation Of Effects Of Bone Marrow Transplant And Prescription Drugs On Survival Of Aplastic Anemia Patients, Yesha M. Patel

Computational and Data Sciences (PhD) Dissertations

This dissertation provides an in-depth exploration into the treatment effectiveness for aplastic anemia using causal inference methods, structured around three pivotal research papers. Each paper contributes to a nuanced understanding of treatment impacts, specifically focusing on bone marrow transplantation (BMT) and prescription drugs, and the identification of optimal treatment strategies.

The first paper, "Causal Inference Analysis for Assessing the Effect of Bone Marrow Transplantation on the One-Year Survival of Adult and Pediatric Aplastic Anemia Patients," sets the foundation. It examines the short-term effectiveness of BMT in both adult and pediatric patients, providing crucial insights into how this treatment affects survival …

Intestinal Microbiome, Fecal Fermentation Profile, And Health Indices In Hiv Infected Men Versus Non-Infected Controls, Mary Andreae, Mary C. Andreae Mrs

Electronic Theses and Dissertations

Many HIV-positive (HIV+) males on Highly Active Anti-Retroviral Therapy (HAART) experience metabolic abnormalities, including Non-Alcoholic Fatty Liver Disease (NAFLD) and lipodystrophy. The intestinal microbiota and short chain fatty acids (SCFA), participate in bidirectional communication with their host. Dysbiosis in HIV+ males on HAART demonstrate a Prevotella-rich enterotype shaped by multiple factors including, medications, adiposity, diet, intestinal permeability, and lifestyle; our objective was to investigate these factors. 19 HIV+ and 21 HIV- males were enrolled. BMI and hip-to-waist ratio (H:W) were obtained, and FibroScan for liver health. Intestinal permeability markers Claudin-21, flagellin, and intestinal fatty acid binding protein (IFABP) in …

Machine Learning For Dynamic And Early Prediction Of Acute Kidney Injury After Cardiac Surgery, Christopher T Ryan, Zijian Zeng, Subhasis Chatterjee, Matthew J Wall, Marc R Moon, Joseph S Coselli, Todd K Rosengart, Meng Li, Ravi K Ghanta

Faculty, Staff and Students Publications

OBJECTIVE: Acute kidney injury after cardiac surgery increases morbidity and mortality. Diagnosis relies on oliguria or increased serum creatinine, which develop 48 to 72 hours after injury. We hypothesized machine learning incorporating preoperative, operative, and intensive care unit data could dynamically predict acute kidney injury before conventional identification.

METHODS: Cardiac surgery patients at a tertiary hospital (2008-2019) were identified using electronic medical records in the Medical Information Mart for Intensive Care IV database. Preoperative and intraoperative parameters included demographics, Charlson Comorbidity subcategories, and operative details. Intensive care unit data included hemodynamics, medications, fluid intake/output, and laboratory results. Kidney Disease: Improving …

Pathomic Features Reveal Immune And Molecular Evolution From Lung Preneoplasia To Invasive Adenocarcinoma, Pingjun Chen, Frank R Rojas, Xin Hu, Alejandra Serrano, Bo Zhu, Hong Chen, Lingzhi Hong, Rukhmini Bandyoyadhyay, Muhammad Aminu, Neda Kalhor, J Jack Lee, Siba El Hussein, Joseph D Khoury, Harvey I Pass, Andre L Moreira, Vamsidhar Velcheti, Daniel H Sterman, Junya Fukuoka, Kazuhiro Tabata, Dan Su, Lisha Ying, Don L Gibbons, John V Heymach, Ignacio I Wistuba, Junya Fujimoto, Luisa M Solis Soto, Jianjun Zhang, Jia Wu

Faculty, Staff and Student Publications

Recent statistics on lung cancer, including the steady decline of advanced diseases and the dramatically increasing detection of early-stage diseases and indeterminate pulmonary nodules, mark the significance of a comprehensive understanding of early lung carcinogenesis. Lung adenocarcinoma (ADC) is the most common histologic subtype of lung cancer, and atypical adenomatous hyperplasia is the only recognized preneoplasia to ADC, which may progress to adenocarcinoma in situ (AIS) and minimally invasive adenocarcinoma (MIA) and eventually to invasive ADC. Although molecular evolution during early lung carcinogenesis has been explored in recent years, the progress has been significantly hindered, largely due to insufficient materials …

Comparative Study Between Antegrade Flexible Ureteroscopy And Reterograde Intrarenal Surgery In The Management Of Impacted Upper Ureteric Stones 15 Cm Or Larger, Ahmed Mohey, Ahmed A Abdelfattah, Ahmed E Mohammed, Abdelmoniem Marzouk, Amr S El-Dakhakhny

Faculty, Staff and Student Publications

OBJECTIVE: To prospectively investigate the safety and efficacy of antegrade flexible ureteroscopy (FURS) with the following criteria (supine, ultrasonic guided puncture through lower calyx with 14 fr tract, tubeless) versus retrograde intrarenal surgery (RIRS) in the management of large impacted upper ureteric stones ≥ 1.5 cm.

PATIENTS AND METHODS: This study recruited 61 patients with single large impacted upper ureteric stone of ≥ 1.5 cm. The patients were randomly allocated to two groups. Group A, included 31 patients who treated by antegrade FURS, all patients were put in supine modified galadako Valdivia position and the renal access is reached by …

Early And Empirical High-Dose Cryoprecipitate For Hemorrhage After Traumatic Injury: The Cryostat-2 Randomized Clinical Trial, Ross Davenport, Nicola Curry, Erin E Fox, Helen Thomas, Joanne Lucas, Amy Evans, Shaminie Shanmugaranjan, Rupa Sharma, Alison Deary, Antoinette Edwards, Laura Green, Charles E Wade, Jonathan R Benger, Bryan A Cotton, Simon J Stanworth, Karim Brohi, Cryostat-2 Principal Investigators

Faculty, Staff and Student Publications

IMPORTANCE: Critical bleeding is associated with a high mortality rate in patients with trauma. Hemorrhage is exacerbated by a complex derangement of coagulation, including an acute fibrinogen deficiency. Management is fibrinogen replacement with cryoprecipitate transfusions or fibrinogen concentrate, usually administered relatively late during hemorrhage.

OBJECTIVE: To assess whether survival could be improved by administering an early and empirical high dose of cryoprecipitate to all patients with trauma and bleeding that required activation of a major hemorrhage protocol.

DESIGN, SETTING, AND PARTICIPANTS: CRYOSTAT-2 was an interventional, randomized, open-label, parallel-group controlled, international, multicenter study. Patients were enrolled at 26 UK and US …

Dietary Analysis For Hashimoto’S Thyroiditis: An Integrative Review, Evan Thompson, Alison Hultquist

Master of Science in Nursing Final Projects

Abstract

Hashimoto’s Thyroiditis (HT) is the leading cause of primary hypothyroidism in the United States. In HT, there is an infiltration by lymphocytes which leads to the production of autoantibodies against the thyroid gland. Throughout this integrative review, the aim was to evaluate the effectiveness of micronutrient supplementation and dietary management as adjunct treatments in HT. The purpose was to assist primary care providers in the development of a more holistic plan of care. Literature published within the past seven years was gathered and reviewed from PubMed, CINAHL, and Cochrane Library. Findings indicate that many patients with HT may benefit …

Impact Of Receiving Hospital On Out‐Of‐Hospital Cardiac Arrest Outcome: Racial And Ethnic Disparities In Texas, Ryan Huebinger, Marina Del Rios, Benjamin S Abella, Bryan Mcnally, Carrie Bakunas, Richard Witkov, Micah Panczyk, Eric Boerwinkle, Bentley Bobrow

Faculty, Staff and Student Publications

Background Factors associated with out-of-hospital cardiac arrest (OHCA) outcome disparities remain poorly understood. We evaluated the role of receiving hospital on OHCA outcome disparities. Methods and Results We studied people with OHCA who survived to hospital admission from TX-CARES (Texas Cardiac Arrest Registry to Enhance Survival), 2014 to 2021. Using census data, we stratified OHCAs into majority (>50%) strata: non-Hispanic White race and ethnicity, non-Hispanic Black race and ethnicity, and Hispanic or Latino ethnicity. We stratified hospitals into performance quartiles based on the primary outcome, survival with good neurologic outcome. We evaluated the association between race and ethnicity and …

Incidence And Risk Factors For Pneumonitis Associated With Checkpoint Inhibitors In Advanced Non-Small Cell Lung Cancer: A Single Center Experience, Mehmet Altan, Felipe Soto, Linda L Zhong, Fechukwu O Akhmedzhanov, Nathaniel R Wilson, Abdulrazzak Zarifa, Aya A Albittar, Vincent Yang, Jeff Lewis, Waree Rinsurongkawong, J Jack Lee, Vadeerat Rinsurongkawong, Jianjun Zhang, Don L Gibbons, Ara A Vaporciyan, Kristofer Jennings, Fareed Khawaja, Saadia A Faiz, Vickie R Shannon, Girish Shroff, Myrna C B Godoy, Naval G Daver, Saumil Gandhi, Tito R Mendoza, Aung Naing, Carrie Daniel-Macdougall, John V Heymach, Ajay Sheshadri

Faculty, Staff and Student Publications

INTRODUCTION: Immune checkpoint inhibitor (ICI) pneumonitis causes substantial morbidity and mortality. Estimates of real-world incidence and reported risk factors vary substantially.

METHODS: We conducted a retrospective review of 419 patients with advanced non-small cell lung cancer (NSCLC) who were treated with anti-PD-(L)1 with or without anti-CTLA-4 therapy. Clinical, imaging, and microbiological data were evaluated by multidisciplinary adjudication teams. The primary outcome of interest was grade ≥2 (CTCAEv5) pneumonitis. Clinicopathologic variables, tobacco use, cancer therapies, and preexisting lung disease were assessed for univariate effects using Cox proportional hazards models. We created multivariate Cox proportional hazards models to assess risk factors for …

A Small Molecule Exerts Selective Antiviral Activity By Targeting The Human Cytomegalovirus Nuclear Egress Complex, Han Chen, Ming F Lye, Christoph Gorgulla, Scott B Ficarro, Gregory D Cuny, David A Scott, Fan Wu, Paul W Rothlauf, Xiaoou Wang, Rosio Fernandez, Jean M Pesola, Sorin Draga, Jarrod A Marto, James M Hogle, Haribabu Arthanari, Donald M Coen

Faculty, Staff and Student Publications

Human cytomegalovirus (HCMV) is an important pathogen for which new antiviral drugs are needed. HCMV, like other herpesviruses, encodes a nuclear egress complex (NEC) composed of two subunits, UL50 and UL53, whose interaction is crucial for viral replication. To explore whether small molecules can exert selective antiviral activity by inhibiting NEC subunit interactions, we established a homogeneous time-resolved fluorescence (HTRF) assay of these interactions and used it to screen >200,000 compound-containing wells. Two compounds, designated GK1 and GK2, which selectively inhibited this interaction in the HTRF assay with GK1 also active in a co-immunoprecipitation assay, exhibited more potent anti-HCMV activity …

From Covid-19 To Long Covid; The Forms Of The Neurological Manifestations, Sana Ahuja, Sufian Zaheer

Journal of Mind and Medical Sciences

Ever since the SARS-CoV-2 infection was declared a global pandemic in 2020, numerous multisystemic manifestations have been discovered. The COVID-19 is known to cause a wide spectrum of neurological symptoms like fatigue, headache, brain fog, stroke, smell and taste disorders, encephalopathy and neurodegenerative disorders. The neurological manifestations are more prevalent in the post-COVID syndrome or long COVID. The National Institute for Health and Care Excellence and WHO defined Ongoing Symptomatic COVID as 4-12 weeks post infection and post COVID-19 syndrome as persistence of symptoms beyond 12 weeks. So far there are limited data available regarding the pathophysiology of neurological symptoms …

Chronic Exertional Compartment Syndrome: A Case Report About Claudication In A Healthy Adult, Adrienne Mays-Kingston, Jeremy Eckels, Holly Farkosh, Austin Nichols, Paris Johnson, Adam M. Franks

Marshall Journal of Medicine

Claudication occurs when the blood supply is insufficient to service the musculature in the body with oxygen and metabolic waste management. A clinical complaint of claudication is commonly seen in primary care among older patients with vascular risk factors. A young and healthy patient presenting with claudication is less common and often results in delayed diagnosis with numerous extraneous diagnostic studies. This case discusses a young, healthy male patient with lower extremity symptoms that got worse with exercise and better with rest. He had normal physical exam findings leading to multiple diagnostic studies and over 12 months between the onset …

Enolase Inhibitors As Early Lead Therapeutics Against Trypanosoma Brucei, Colm P Roster, Danielle Lavigne, Jillian E Milanes, Emily Knight, Heidi D Anderson, Sabrina Pizarro, Elijah M Harding, Meredith T Morris, Victoria C Yan, Cong-Dat Pham, Florian Muller, Samuel Kwain, Kerrick C Rees, Brian Dominy, Daniel C Whitehead, Md Nasir Uddin, Steven W Millward, James C Morris

Faculty, Staff and Student Publications

Glucose metabolism is critical for the African trypanosome, Trypanosoma brucei, serving as the lone source of ATP production for the bloodstream form (BSF) parasite in the glucose-rich environment of the host blood. Recently, phosphonate inhibitors of human enolase (ENO), the enzyme responsible for the interconversion of 2-phosphoglycerate (2-PG) to phosphoenolpyruvate (PEP) in glycolysis or PEP to 2-PG in gluconeogenesis, have been developed for the treatment of glioblastoma multiforme (GBM). Here, we have tested these agents against T. brucei ENO (TbENO) and found the compounds to be potent enzyme inhibitors and trypanocides. For example, (1-hydroxy-2-oxopyrrolidin-3-yl) phosphonic acid (deoxy-SF2312) …

Serotonin Reduction In Post-Acute Sequelae Of Viral Infection, Andrea Wong, Ashwarya Devason, Iboro Umana, Timothy Cox, Lenka Dohnalová, Lev Litichevskiy, Jonathan Perla, Patrick Lundgren, Zienab Etwebi, Luke Izzo, Jihee Kim, Monika Tetlak, Hélène Descamps, Simone Park, Stephen Wisser, Aaron Mcknight, Ryan Pardy, Junwon Kim, Niklas Blank, Shaan Patel, Katharina Thum, Sydney Mason, Jean-Christophe Beltra, Michaël Michieletto, Shin Foong Ngiow, Brittany Miller, Megan Liou, Bhoomi Madhu, Oxana Dmitrieva-Posocco, Alex Huber, Peter Hewins, Christopher Petucci, Candice Chu, Gwen Baraniecki-Zwil, Leila Giron, Amy Baxter, Allison Greenplate, Charlotte Kearns, Kathleen Montone, Leslie Litzky, Michael Feldman, Jorge Henao-Mejia, Boris Striepen, Holly Ramage, Kellie Jurado, Kathryn Wellen, Una O'Doherty, Mohamed Abdel-Mohsen, Alan L Landay, Ali Keshavarzian, Timothy Henrich, Steven Deeks, Michael Peluso, Nuala Meyer, E. John Wherry, Benjamin Abramoff, Sara Cherry, Christoph Thaiss, Maayan Levy

Department of Microbiology and Immunology Faculty Papers

Post-acute sequelae of COVID-19 (PASC, "Long COVID") pose a significant global health challenge. The pathophysiology is unknown, and no effective treatments have been found to date. Several hypotheses have been formulated to explain the etiology of PASC, including viral persistence, chronic inflammation, hypercoagulability, and autonomic dysfunction. Here, we propose a mechanism that links all four hypotheses in a single pathway and provides actionable insights for therapeutic interventions. We find that PASC are associated with serotonin reduction. Viral infection and type I interferon-driven inflammation reduce serotonin through three mechanisms: diminished intestinal absorption of the serotonin precursor tryptophan; platelet hyperactivation and thrombocytopenia, …