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Alk Drives Neuroblastoma Tumorigenesis Via Upregulation Of Postn And Activation Of Wnt And Stat3 Signaling, Miller Huang, Wanqi Fang, Alvin Farrel, Linwei Li, Tania Porras Corredor, Shahab Asgharzadeh, John Maris, William A. Weiss Mar 2025

Alk Drives Neuroblastoma Tumorigenesis Via Upregulation Of Postn And Activation Of Wnt And Stat3 Signaling, Miller Huang, Wanqi Fang, Alvin Farrel, Linwei Li, Tania Porras Corredor, Shahab Asgharzadeh, John Maris, William A. Weiss

Research Symposium

Background: Neuroblastoma (NB) is the most common extracranial solid tumor in children. Two of the earliest known genetic drivers of NB are the oncogene MYCN and receptor tyrosine kinase ALK. While animal models show MYCN and mutationally active ALK F1174L can accelerate NB tumorigenesis, the mechanism of this cooperation is unknown. This study applied a human stem cell-based model to elucidate how ALK cooperates with MYCN to accelerate tumorigenesis of NB.

Methods: Induced pluripotent stem cells (iPSCs) were engineered with doxycycline-inducible MYCN and constitutively active ALKF1174L. These iPSCs were differentiated into trunk neural crest cells (tNCCs) and orthotopically transplanted into …


Mechanisms Of Macrophage Metabolic Activation And Paracrine Wnt Signaling In The Pathogenesis Of Systemic Sclerosis, Emily Ann Morris Mar 2025

Mechanisms Of Macrophage Metabolic Activation And Paracrine Wnt Signaling In The Pathogenesis Of Systemic Sclerosis, Emily Ann Morris

Dartmouth College Ph.D Dissertations

Systemic sclerosis (SSc) is a chronic autoimmune disease of unknown etiology. We have previously shown that macrophages (MØs) play a critical role in its pathogenesis; however, the mechanisms driving MØ activation in SSc remain poorly understood. This dissertation investigates the molecular signaling pathways and biochemical mechanisms underlying profibrotic MØ activity in SSc.

First, I identify a novel MØ-specific effect of mycophenolate mofetil (MMF), the standard-of-care treatment for SSc. While MMF is a well characterized lymphostatic, my findings demonstrate that its active metabolite, mycophenolic acid (MPA), is also capable of directly inhibiting myeloid viability and profibrotic MØ activation by suppressing de …


Cardiometabolic Benefits Of A Non-Industrialized-Type Diet Are Linked To Gut Microbiome Modulation, Fuyong Li, Anissa M. Armet, Katri Korpela, Junhong Liu, Rodrigo Margain Quevedo, Francesco Asnicar, Benjamin Seethaler, Tianna B. S. Rusnak, Janis L. Cole, Zhihong Zhang, Shuang Zhao, Adele Gagnon, Edward C. Deehan, Joao F. Mota, Jeffrey A. Bakal, Russell Greiner, Dan Knights, Nicola Segata, Stephan C. Bischoff, Laurie Mereu, Andrea M. Haqq, Catherine J. Field, Liang Li, Carla M. Prado, Jens Walter Mar 2025

Cardiometabolic Benefits Of A Non-Industrialized-Type Diet Are Linked To Gut Microbiome Modulation, Fuyong Li, Anissa M. Armet, Katri Korpela, Junhong Liu, Rodrigo Margain Quevedo, Francesco Asnicar, Benjamin Seethaler, Tianna B. S. Rusnak, Janis L. Cole, Zhihong Zhang, Shuang Zhao, Adele Gagnon, Edward C. Deehan, Joao F. Mota, Jeffrey A. Bakal, Russell Greiner, Dan Knights, Nicola Segata, Stephan C. Bischoff, Laurie Mereu, Andrea M. Haqq, Catherine J. Field, Liang Li, Carla M. Prado, Jens Walter

Department of Food Science and Technology: Faculty Publications

Industrialization adversely affects the gut microbiome and predisposes individuals to chronic non-communicable diseases. We tested a microbiome restoration strategy comprising a diet that recapitulated key characteristics of non-industrialized dietary patterns (restore diet) and a bacterium rarely found in industrialized microbiomes (Limosilactobacillus reuteri) in a randomized controlled feeding trial in healthy Canadian adults. The restore diet, despite reducing gut microbiome diversity, enhanced the persistence of L. reuteri strain from rural Papua New Guinea (PB-W1) and redressed several microbiome features altered by industrialization. The diet also beneficially altered microbiota-derived plasma metabolites implicated in the etiology of chronic non-communicable diseases. Considerable …


A Sex Comparison Of Fall And Fracture Occurrence In The Elderly Diabetic Population: A Quantitative Study, Fahamina Ahmed, Kaylin Miller, Meva Beganovic, Ali Siddiqui, Candice Smith Mar 2025

A Sex Comparison Of Fall And Fracture Occurrence In The Elderly Diabetic Population: A Quantitative Study, Fahamina Ahmed, Kaylin Miller, Meva Beganovic, Ali Siddiqui, Candice Smith

School of Medicine Faculty Publications

AIMS: To assess differences in falls and fractures in men and women with type 2 diabetes mellitus (T2DM) within a diverse population in Southeast Louisiana. METHODS: A list of 1200 patients was generated through an electronic health record system using keywords: diabetic diagnosis, falls, and fractures to conduct this retrospective cohort study. This chart review included adults with T2DM who experienced at least one fall and/or fracture between January 2018 and May 2023 at East Jefferson General Hospital located in Metairie, Louisiana. Only falls and fractures that resulted in a hospital visit were included. Results were compared between males and …


Targets To Increase Hiv Pre-Exposure Prophylaxis (Prep) Uptake Among Communities In Northeast Georgia, Kaley E. Parchinski, Molly Hirsh, Andrew Cheng, Nia Kalifa, Manvi Manyam Mar 2025

Targets To Increase Hiv Pre-Exposure Prophylaxis (Prep) Uptake Among Communities In Northeast Georgia, Kaley E. Parchinski, Molly Hirsh, Andrew Cheng, Nia Kalifa, Manvi Manyam

Journal of the Georgia Public Health Association

Background: This study seeks to identify targets to increase HIV pre-exposure prophylaxis (PrEP) uptake in Athens-Clarke County, GA, a non-urban area with high HIV burden and poor PrEP utilization.

Methods: A cross sectional survey of adults attending HIV outreach screenings in Athens, GA between November 2022 and March 2023 describes participant demographics and validated scales measuring PrEP knowledge, attitudes, stigma, descriptive norms, and intentions.

Results: Of 136 total participants, key demographic groups included Black (N=84, 61.8%), Latinx (N=10, 8.1%), LGBTQ+ (N=25, 18.4%), and persons who use injection drugs (N=19, 15%); overall, less than half of the PrEP knowledge items were …


The Link Between Alcohol And Cancer: An Under Recognized Major Public Health Problem., Ihsan Salloum Mar 2025

The Link Between Alcohol And Cancer: An Under Recognized Major Public Health Problem., Ihsan Salloum

Research Symposium

Objectives: Alcohol use related consequences is a worldwide major public health problem. Alcohol use is globally responsible for three million deaths each year and accounts for 5.1% of the global burden of disease. It accounts for the highest proportion of premature mortality among those ages between 15 and 49 years of age. Alcohol use has been linked to more than 200 disease and injury conditions and to poor health and disabilities of millions of people. While the link between alcohol and cancer has been recognized for a while, the awareness of such connection is still limited among the public …


Progressive Multifocal Leukoencephalopathy (Pml) Induced By Jc Virus: A Case Report And Review Of Clinical Implications, Hugo Zamarron, Roberto Cruz Mar 2025

Progressive Multifocal Leukoencephalopathy (Pml) Induced By Jc Virus: A Case Report And Review Of Clinical Implications, Hugo Zamarron, Roberto Cruz

Research Symposium

Background: Progressive multifocal leukoencephalopathy (PML) is a rare but serious demyelinating disease of the central nervous system, caused by the John Cunningham (JC) virus. While the JC virus is common in the general population, it remains dormant in healthy individuals but can reactivate in immunocompromised patients, particularly those with HIV/AIDS or undergoing immunosuppressive treatments for organ transplants or autoimmune conditions. The virus attacks oligodendrocytes, leading to demyelination and significant neurological deficits. Immunosuppressive therapies such as natalizumab, rituximab, and mycophenolate increase the risk of PML. Diagnosing PML is challenging as its symptoms—focal neurological deficits, sensory-motor issues, and visual disturbances—overlap with conditions …


Factors Driving Adolescent Tuberculosis Incidence By Age And Sex In 30 High-Tuberculosis Burden Countries: A Mathematical Modelling Study, Silvia S Chiang, Megan B Murray, Alexander W Kay, Peter J Dodd Mar 2025

Factors Driving Adolescent Tuberculosis Incidence By Age And Sex In 30 High-Tuberculosis Burden Countries: A Mathematical Modelling Study, Silvia S Chiang, Megan B Murray, Alexander W Kay, Peter J Dodd

Faculty, Staff and Students Publications

INTRODUCTION: During adolescence, tuberculosis incidence rises, with a greater increase in males compared with females. Tuberculosis notifications and estimates infrequently disaggregate adolescent age groups. Moreover, the factors that drive the increases in overall incidence and the male-to-female (MF) ratio remain unclear.

METHODS: We constructed a mechanistic model to estimate cumulative Mycobacterium tuberculosis infection and tuberculosis disease incidence in the WHO’s 30 high-tuberculosis burden countries (HBCs), which represent 86%–90% of global tuberculosis incidence. We derived infection risk from tuberculosis prevalence and assortative social mixing based on sex and age (10–14 years vs 15–19 years old). We adjusted age subgroup-specific risks of …


Atypical Dengue Fever With Severe Hematological Manifestations: A Case From The Rio Grande Valley, Elias Arellano Villanueva, Alhasan Asaad, Jose Campo Maldonado Mar 2025

Atypical Dengue Fever With Severe Hematological Manifestations: A Case From The Rio Grande Valley, Elias Arellano Villanueva, Alhasan Asaad, Jose Campo Maldonado

Research Symposium

Background: Dengue fever, a mosquito-borne viral illness, is endemic in tropical regions, including border regions like the Rio Grande Valley while often self-limited, severe presentations such as dengue hemorrhagic fever and dengue shock syndrome highlight its challenges and complexities. This report describes an atypical dengue case with severe hematological manifestations, underscoring the diagnostic challenges and the importance of early recognition, multidisciplinary evaluation, and evidence-based management.

Case Presentation: A 22-year-old Hispanic female with no significant past medical history presented to the ED with hematemesis and fever following her travel to Monterrey, Mexico. Initial symptoms included high fever (107.6°F), chills, diarrhea, vomiting, …


A Case Of Microscopic Colitis Masquerading As Chronic Inflammatory Diarrhea, Corey Haines, Sophia Moon, Giani Tah, Diana Acosta Pozo, Alejandro Aquino, Fatimah Bello Mar 2025

A Case Of Microscopic Colitis Masquerading As Chronic Inflammatory Diarrhea, Corey Haines, Sophia Moon, Giani Tah, Diana Acosta Pozo, Alejandro Aquino, Fatimah Bello

Research Symposium

Introduction: Microscopic colitis is an idiopathic, inflammatory form of colitis that is characterized by a normal macroscopic appearance of bowel but abnormal histological appearance on microscopy. Microscopic colitis can be subdivided into two histological subtypes: collagenous and lymphocytic. The collagenous subtype is characterized by proliferation of collagenous connective tissue that forms a thick subepithelial collagen band while the lymphocytic subtype is characterized by lymphocytic infiltrates and little to no proliferation of connective tissue. Classically, microscopic colitis presents with chronic, nonbloody, watery diarrhea lasting more than one month. It is typically associated with weight loss, abdominal pain, tenesmus, and nocturnal stools. …


First Report Of A Multidrug-Resistant Staphylococcus Coagulans Urinary Tract Infection Associated With A Medical Device., Carlos Ramírez-Pfeiffer, Defne Esmeralda Esparza-Galván, Allan Guzmán Cardenas, Jania Jazmin Gutiérrez-Carreño, Martín Segura-Chico, Juan Carlos López-Alvarenga Mar 2025

First Report Of A Multidrug-Resistant Staphylococcus Coagulans Urinary Tract Infection Associated With A Medical Device., Carlos Ramírez-Pfeiffer, Defne Esmeralda Esparza-Galván, Allan Guzmán Cardenas, Jania Jazmin Gutiérrez-Carreño, Martín Segura-Chico, Juan Carlos López-Alvarenga

Research Symposium

Background: The identification of Staphylococcus schleiferi subsp. coagulans (recently reclassified as S. coagulans) was part of a previous retrospective study on antibiotic resistance in urinary tract infections (UTIs) in older adults conducted at a Tamaulipas state hospital in 2023 (Esparza 2023, unpublished data). S. coagulans is an emerging human pathogen, initially associated with veterinary infections, particularly dermatitis and otitis in dogs. Like other Staphylococcus species, it is known for its biofilm-forming ability, which enhances its persistence and resistance to treatment. Recent studies have linked S. coagulans to severe human infections, including endocarditis, meningitis, and hepatocellular carcinoma, particularly in patients with …


Impact Of Diabetes On Fall Related Lower Limb Fractures, Bryce M. Bellon, Daniel Salinas, Patrick De La Torre Shutz, Hunter Butler, Sean Corcoran, Kelsey Baker Mar 2025

Impact Of Diabetes On Fall Related Lower Limb Fractures, Bryce M. Bellon, Daniel Salinas, Patrick De La Torre Shutz, Hunter Butler, Sean Corcoran, Kelsey Baker

Research Symposium

Background: Diabetes is a disorder that affects many Americans, characterized primarily by hyperglycemia due to either insulin resistance or lack of insulin secretion. This condition not only impacts blood sugar levels but also has significant effects on bone health. In diabetes, bone density is often decreased due to reduced osteoblast activity, which is responsible for bone formation, and increased osteoclast activity, which leads to bone resorption. This imbalance accelerates the breakdown of bone. Additionally, diabetics frequently suffer from lower extremity arterial disease (LEAD), which results in poor vascularization of the lower limbs. These factors contribute to an increased risk of …


Investing In Residential Real Estate: Understanding Homebuilder Exchange-Traded Fund Performance, Robert W. Mcleod, Davinder K. Malhotra Mar 2025

Investing In Residential Real Estate: Understanding Homebuilder Exchange-Traded Fund Performance, Robert W. Mcleod, Davinder K. Malhotra

School of Business Faculty Papers

Homebuilder ETFs provide investors with a diversified portfolio of residential construction and sales companies which reduces risks associated with individual stock selection in the sector. This study examines the net monthly returns of homebuilder exchange-traded funds (ETFs) through various performance evaluation models and market situations. The results reveal that these ETFs outperformed benchmark indices in absolute returns. Despite homebuilding being part of the real estate sector, the correlation between monthly returns of homebuilder ETFs and the Dow Jones US Real Estate Index, though positive, is not very high. The performance of ETFs varied across market conditions, demonstrating both outperformance and …


Periumbilical Perforating Pseudoxanthoma Elasticum, Ana L. Duarte-Summers, Anna Chen, Morgan E. Sussman-Mccrea, Shayan Waseh, Jason B. Lee, Sylvia Hsu Mar 2025

Periumbilical Perforating Pseudoxanthoma Elasticum, Ana L. Duarte-Summers, Anna Chen, Morgan E. Sussman-Mccrea, Shayan Waseh, Jason B. Lee, Sylvia Hsu

Department of Dermatology and Cutaneous Biology Faculty Papers

No abstract provided.


Acute Heart Failure Secondary To Coxsackie Dilated Cardiomyopathy In An Immunocompetent Adult: A Case Report From A Social Disparities Perspective, Barbara Malaga-Espinoza, Donnel Dockery-Joseph, Jessica Daza, Oscar Lopez, Andres Suarez Parraga Mar 2025

Acute Heart Failure Secondary To Coxsackie Dilated Cardiomyopathy In An Immunocompetent Adult: A Case Report From A Social Disparities Perspective, Barbara Malaga-Espinoza, Donnel Dockery-Joseph, Jessica Daza, Oscar Lopez, Andres Suarez Parraga

Research Symposium

Introduction: Cardiomyopathies (CM) are defined as myocardial disorders in the absence of coronary artery disease, hypertension, valvular or congenital heart conditions. Dilated CM is characterized by dilation and impaired contraction of one or both ventricles. The prevalence of this condition is underestimated because of variable disease expression and challenging diagnosis. We present the case of an undocumented and immunocompetent patient who debuted with acute heart failure after being exposed to significant environmental stressors.

Case Presentation: A 44-year-old Hispanic gentleman with a history of untreated hypertension presented to the ED with severely persistent left-sided chest pain at rest associated with frontoparietal …


A Case Of Rhabdomyolysis Complicated By Acute Compartment Syndrome After A Ground-Level Fall, Barbara Malaga-Espinoza, Khairiya Haj-Yahya, Corey Haines Mar 2025

A Case Of Rhabdomyolysis Complicated By Acute Compartment Syndrome After A Ground-Level Fall, Barbara Malaga-Espinoza, Khairiya Haj-Yahya, Corey Haines

Research Symposium

Introduction: Rhabdomyolysis is the breakdown of skeletal muscle tissue that results in the release of intracellular contents such as myoglobin, CK, and electrolytes into the surrounding interstitium and circulation. Rhabdomyolysis is commonly precipitated by trauma, excessive physical exertion, infection, or drug toxicity. Compartment syndrome can be a complication of severe rhabdomyolysis, characterized by increased pressure in a closed anatomical space which can lead to compromised perfusion and ischemia. Timely identification and early surgical intervention are crucial to improving outcomes. Here we present a case of rhabdomyolysis complicated by acute compartment syndrome of the leg in the setting of prolonged poor …


The Prevalence And Impact Of Extrarenal Involvement In Fibromuscular Dysplasia: A Systematic Review, Alyssa L. Sepulveda, Yolanda V. Gutierrez, Ronald A. Shaju Mar 2025

The Prevalence And Impact Of Extrarenal Involvement In Fibromuscular Dysplasia: A Systematic Review, Alyssa L. Sepulveda, Yolanda V. Gutierrez, Ronald A. Shaju

Research Symposium

Background: Fibromuscular Dysplasia (FMD) is a non-inflammatory vascular disease affecting medium-sized arteries, characterized by arterial stenosis, dissection, or aneurysm formation. While renal arteries are most involved, extrarenal manifestations, particularly in the carotid and vertebral arteries, are increasingly recognized. These non-renal presentations can lead to complications such as dissection, aneurysm, and ischemic events, influencing diagnosis and management strategies. This systematic review evaluates the prevalence and clinical impact of extrarenal FMD, with a focus on its role in patient outcomes and treatment.

Methods: A systematic review of PubMed, Science Direct, and Cochrane was conducted to identify studies published from 2000 to 2025. …


Overlap Of Pnh With Myelodysplastic Syndrome: Diagnostic Challenges And Management Approaches, Alyssa L. Sepulveda, Ronald A. Shaju, Yolanda V. Gutierrez Mar 2025

Overlap Of Pnh With Myelodysplastic Syndrome: Diagnostic Challenges And Management Approaches, Alyssa L. Sepulveda, Ronald A. Shaju, Yolanda V. Gutierrez

Research Symposium

Background: Paroxysmal Nocturnal Hemoglobinuria (PNH) and Myelodysplastic Syndrome (MDS) are both hematologic disorders that overlap, posing challenges in diagnosis and management. PNH involves complement-mediated hemolysis and clonal hematopoiesis, while MDS is characterized by ineffective hematopoiesis and cytopenias. Their shared features, such as clonal mutations and bone marrow failure, can complicate differentiation. Flow cytometry is essential for identifying PNH clones and guiding treatment. Understanding this overlap is key to improving outcomes through targeted therapies and advanced management strategies.

Methods: A systematic review of PubMed, Science Direct, and Cochrane was conducted for articles published between 2000 and 2025. Keywords included 'paroxysmal nocturnal …


Long-Term Safety And Comparative Efficacy Of Il-17 Inhibitors In Treating Ankylosing Spondylitis, Alyssa L. Sepulveda, Yolanda V. Gutierrez, Ronald A. Shaju Mar 2025

Long-Term Safety And Comparative Efficacy Of Il-17 Inhibitors In Treating Ankylosing Spondylitis, Alyssa L. Sepulveda, Yolanda V. Gutierrez, Ronald A. Shaju

Research Symposium

Background:
Ankylosing Spondylitis (AS) is a chronic inflammatory disease affecting the axial skeleton, characterized by spinal stiffness, sacroiliitis, and potential vertebral fusion. While nonsteroidal anti-inflammatory drugs (NSAIDs) and tumor necrosis factor (TNF) inhibitors are first-line treatments, IL-17 inhibitors, such as secukinumab and ixekizumab, are used in patients with inadequate response or contraindications to TNF inhibitors. These targeted therapies address IL-17’s role in driving inflammation and structural damage in AS.

Methods:
A systematic review was conducted using PubMed, Science Direct, and Cochrane to identify studies published between 2000 and 2025. Keywords included “Ankylosing spondylitis” and “IL-17 inhibitors” and “efficacy.” Inclusion criteria …


External Validation Of The Phoenix Sepsis Score In Children With Suspected Community-Acquired Sepsis, Elliot Long, Meredith Borland, Shane George, Shefali Jani, Eunicia Tan, Natalie Phillips, Amit Kochar, Simon Craig, Anna Lithgow, Arjun Rao, Stuart Dalziel, Ed Oakley, Stephen Hearps, Ben Gelbart, Sarah Mcnab, Fran Balamuth, Scott Weiss, Nathan Kuppermann, Charlotte Brad, Amanda Williams, Franz Babl Mar 2025

External Validation Of The Phoenix Sepsis Score In Children With Suspected Community-Acquired Sepsis, Elliot Long, Meredith Borland, Shane George, Shefali Jani, Eunicia Tan, Natalie Phillips, Amit Kochar, Simon Craig, Anna Lithgow, Arjun Rao, Stuart Dalziel, Ed Oakley, Stephen Hearps, Ben Gelbart, Sarah Mcnab, Fran Balamuth, Scott Weiss, Nathan Kuppermann, Charlotte Brad, Amanda Williams, Franz Babl

Department of Medicine Faculty Papers

IMPORTANCE: The novel Phoenix Sepsis Score and sepsis criteria were derived and validated using a multicountry dataset and proposed as a new definition for sepsis in children.

OBJECTIVE: To externally validate the Phoenix Sepsis Score and sepsis criteria in a cohort of children hospitalized with suspected community-acquired sepsis.

DESIGN, SETTING, AND PARTICIPANTS: This diagnostic study used data from the multicenter, multicountry Sepsis Epidemiology in Australian and New Zealand Emergency Departments (SENTINEL) study, collected from 2021 to 2023 and including 90-day follow-up. Children admitted to the hospital through 11 emergency departments in Australia and New Zealand and treated with parenteral antibiotics …


Comparison Between Maia And Mp-3 In Healthy Subjects And Patients With Diabetes, Diabetic Retinopathy, And Age-Related Macular Degeneration, Anna Marmalidou, Haleema Siddiqui, Muhammad Usman Jamil, Kwang Min Woo, Antonio Yaghy, A. Yasin Alibhai, Hiroyuki Takahashi, Stephanie Kaiser, Keith Effert, Peter Zhao, Shilpa Desai, Christopher Robinson, Jay Duker, Nadia Waheed Mar 2025

Comparison Between Maia And Mp-3 In Healthy Subjects And Patients With Diabetes, Diabetic Retinopathy, And Age-Related Macular Degeneration, Anna Marmalidou, Haleema Siddiqui, Muhammad Usman Jamil, Kwang Min Woo, Antonio Yaghy, A. Yasin Alibhai, Hiroyuki Takahashi, Stephanie Kaiser, Keith Effert, Peter Zhao, Shilpa Desai, Christopher Robinson, Jay Duker, Nadia Waheed

SKMC Student Presentations and Publications

PURPOSE: The purpose of this study was to assess the comparability of mean sensitivity (MS) values obtained using the Macular Integrity Assessment (MAIA; CenterVue S.p.A. [iCare], Padova, Italy) and Microperimeter-3 (MP-3; NIDEK CO., Ltd., Gamagori, Japan) microperimetry (MP) devices.

METHODS: This cross-sectional study includes subjects with healthy eyes, eyes with diabetes mellitus without diabetic retinopathy (DM no DR), diabetic retinopathy (DR), and non-exudative age-related macular degeneration (AMD). Patients underwent testing on both MAIA and MP-3 MP devices, using a 10-2 macular grid with 68 stimuli and identical parameters. A diagnosis-adjusted linear regression model and mixed modeling mapped MP-3 MS to …


The Impact Of Testosterone Therapy On The Vaginal Microbiota Of Transgender Men And Non-Binary People: A Prospective Study, Olivia T. Van Gerwen, Kristal J. Aaron, Emma Sophia Kay, Krishmita Siwakoti, Angela Pontius, Saralyn Richter, Z Alex Sherman, Keonte J. Graves, Ashutosh Tamhane, Jacob H. Elnaggar, Meng Luo, Evelyn Toh, David E. Nelson, Nicholas J. Van Wagoner, Christopher M. Taylor, Christina A. Muzny Mar 2025

The Impact Of Testosterone Therapy On The Vaginal Microbiota Of Transgender Men And Non-Binary People: A Prospective Study, Olivia T. Van Gerwen, Kristal J. Aaron, Emma Sophia Kay, Krishmita Siwakoti, Angela Pontius, Saralyn Richter, Z Alex Sherman, Keonte J. Graves, Ashutosh Tamhane, Jacob H. Elnaggar, Meng Luo, Evelyn Toh, David E. Nelson, Nicholas J. Van Wagoner, Christopher M. Taylor, Christina A. Muzny

School of Medicine Faculty Publications

BACKGROUND: Understanding the impact of testosterone on the vaginal microbiota of transgender men (TGM) and non-binary people assigned female sex at birth over time is imperative as vaginal dysbiosis and incident bacterial vaginosis (iBV) may cause bothersome genital symptoms and increase HIV/STI acquisition risk. We investigated shifts in the composition of the vaginal microbiota over time in TGM initiating testosterone for gender-affirming hormone therapy, including development of vaginal dysbiosis and iBV.

METHODS: Participants ages ≥18 years, assigned female sex at birth and reporting TGM or non-binary identity, interested in starting injectable testosterone, demonstrating optimal vaginal microbiota, with no current STI(s) …


From Crisis To Action: Investigation, Research, And Response In The Rio Grande Valley Following The Anencephaly Cluster Of 1990-1991, Jonathan Hebert, Miguel Lopez, Padmanabhan Rengasamy Mar 2025

From Crisis To Action: Investigation, Research, And Response In The Rio Grande Valley Following The Anencephaly Cluster Of 1990-1991, Jonathan Hebert, Miguel Lopez, Padmanabhan Rengasamy

MEDI 9331 Scholarly Activities Clinical Years

The 1990-1991 birth defect cluster of anencephaly in the Rio Grande Valley has had lasting effects on Texas public health and birth defect prevention nationwide. The purpose of this study is to clearly illuminate public health efforts to investigate, identify, and combat the rise of anencephaly and other neural tube defects (NTDs) in the Rio Grande Valley and other border counties following the 1990-1991 cluster, as well as to report the findings of each branch of environmental, infectious, and genetic investigation into the possible causes of the disaster. Information was gathered via a literature review and from other sources including …


Markers Of Growth And Nutrition In Children With Acquired Chylothorax Post Chd Surgery, Kevin N. Marzotto, Karin R. Videlefsky, Meghan P. Howell, Thomas R. Kimball, Frank A. Pigula, Kurt D. Piggott Mar 2025

Markers Of Growth And Nutrition In Children With Acquired Chylothorax Post Chd Surgery, Kevin N. Marzotto, Karin R. Videlefsky, Meghan P. Howell, Thomas R. Kimball, Frank A. Pigula, Kurt D. Piggott

School of Medicine Faculty Publications

Background: Acquired chylothorax is an established complication of CHD surgery, affecting 2-9% of patients. CHD places a child at risk for failure to thrive, with subsequent chylothorax imposing additional risk. Objective: We conducted a retrospective chart review to ascertain quantitative markers of nutrition and growth in children affected by chylothorax following CHD surgery between 2018 and 2022 compared to controls. Methods: We utilised electronic medical record system, EPIC, at Children's Hospital, New Orleans, targeting subjects < 18 years old who underwent CHD surgery between 2018 and 2022 and developed a subsequent chylothorax. Study subjects were identified using the 10th revision of the International Classification of Diseases codes (ICD-10 codes: J94.0, I89.8, and J90.0). Each chylothorax case (n = 20) was matched by procedure type and age to a control with no chylothorax (n = 20). Data were recorded in REDCap and analysed using SPSS. Results: After removal of outliers, we analysed 19 total matched pairs. There was no statistical difference in growth velocity (p = 0.12), weight change (operation to discharge) (p = 0.95), weight change (admission to discharge) (p = 0.35), Z-score change (operation to discharge) (p = 0.90), Z-score change (admission to discharge) (p = 0.21), serum protein (p = 0.88), or serum albumin (p = 0.82). Among cases, linear regression demonstrated no significant association between maximum chylous output and growth velocity (p = 0.91), weight change (operation to discharge) (p = 0.15), or weight change (admission to discharge) (p = 0.98). Conclusions: We did not observe statistically significant markers of growth or nutrition in children with chylothorax post-CHD surgery compared to those without chylothorax. Multisite data collection and analysis is required to better ascertain clinical impact and guide clinical practice.


Children Suspected For Developmental Coordination Disorder In Hong Kong And Associated Health-Related Functioning: A Survey Study, Kathlynne F. Eguia, Sum Kwing Cheung, Kevin K.H. Chung, Catherine M. Capio Mar 2025

Children Suspected For Developmental Coordination Disorder In Hong Kong And Associated Health-Related Functioning: A Survey Study, Kathlynne F. Eguia, Sum Kwing Cheung, Kevin K.H. Chung, Catherine M. Capio

Health Sciences Faculty Publications

Children with developmental coordination disorder (DCD) have motor difficulties that interfere with their daily functions. The extent to which DCD affects children in Hong Kong has not been established. In this study, we aimed to estimate the prevalence of children suspected of DCD (sDCD) in Hong Kong and to examine the relationship between motor performance difficulties and health-related functioning. We conducted a cross-sectional survey of parents of children aged 5 to 12 years across Hong Kong (N = 656). The survey consisted of the Developmental Coordination Disorder Questionnaire (DCDQ) and short forms on global health, physical activity, positive affect, and …


Mycoplasma Hominis–Associated Septic Arthritis Masquerading As Gouty Arthritis, Angelina Liddy, Carolyn Kramer, Devin M. Weber Mar 2025

Mycoplasma Hominis–Associated Septic Arthritis Masquerading As Gouty Arthritis, Angelina Liddy, Carolyn Kramer, Devin M. Weber

Division of Infectious Diseases and Environmental Medicine Faculty Papers

Septic arthritis caused by M. hominis is exceptionally rare. Here, we report on a 62-year-old man with a medical history of gout and renal cell carcinoma who presented with persistent knee pain and swelling following partial nephrectomy complicated by an abdominal abscess. Arthrocentesis revealed monosodium urate crystals, leading to the initial diagnosis and treatment of gouty arthritis using intra-articular steroid injections, allopurinol, and colchicine. Initial cultures yielded no growth. However, faint transparent colonies grew after discharge, which were eventually identified as M. hominis. Initial antibacterial therapy targeting suspect Mycoplasma spp. was begun with doxycycline, and the patient ultimately completed 12 …


Evaluating Dysphagia Duration And Severity After Acdf In Patients With Underlying Dysphagia - A Prospective, Multicenter Study, Aditya Mazmudar, Taylor Paziuk, Khoa Tran, Tyler Henry, Samuel Oh, Caroline Purtill, Daniel Habbal, Goutham Yalla, Quinlin Harrill, Brandon Sherrod, Erica Bisson, Darrel Brodke, Christopher Kepler, Gregory Schroeder, Alex Vaccaro, Alan Hilibrand, Jeffrey Rihn Mar 2025

Evaluating Dysphagia Duration And Severity After Acdf In Patients With Underlying Dysphagia - A Prospective, Multicenter Study, Aditya Mazmudar, Taylor Paziuk, Khoa Tran, Tyler Henry, Samuel Oh, Caroline Purtill, Daniel Habbal, Goutham Yalla, Quinlin Harrill, Brandon Sherrod, Erica Bisson, Darrel Brodke, Christopher Kepler, Gregory Schroeder, Alex Vaccaro, Alan Hilibrand, Jeffrey Rihn

Department of Orthopaedic Surgery Faculty Papers

STUDY DESIGN: Prospective Cohort Study.

OBJECTIVES: The purpose of this study was to prospectively evaluate the impact of preoperative dysphagia on the postoperative incidence and severity of dysphagia in patients undergoing ACDF at multiple institutions.

METHODS: After IRB approval, patients over 18 years of age who underwent an elective ACDF for degenerative conditions were prospectively enrolled at two academic centers from 2018 to 2021. Preoperative dysphagia was self-reported by patients through a pre-operative questionnaire on a binary basis. Patients completed dysphagia surveys (Bazaz, Dysphagia Short Questionnaire, 10-item Eating Assessment Tool) to assess dysphagia severity during their preoperative visit, and these …


An Update In Complication Rates Associated With Anterior Lumbar Surgery: A Systematic Review And Meta-Analysis, Tariq Z Issa, Teeto Ezeonu, Mason Sellig, Chester J Donnally, Rajkishen Narayanan, Brian A Karamian, Parthik D Patel, Srikanth N Divi, William A Robinson, Kartik Shenoy, Christopher K Kepler, Alexander R Vaccaro, Jose A Canseco Mar 2025

An Update In Complication Rates Associated With Anterior Lumbar Surgery: A Systematic Review And Meta-Analysis, Tariq Z Issa, Teeto Ezeonu, Mason Sellig, Chester J Donnally, Rajkishen Narayanan, Brian A Karamian, Parthik D Patel, Srikanth N Divi, William A Robinson, Kartik Shenoy, Christopher K Kepler, Alexander R Vaccaro, Jose A Canseco

Department of Orthopaedic Surgery Faculty Papers

STUDY DESIGN: Systematic Review and meta-analysis.

OBJECTIVE: To conduct an updated systematic review and meta-analysis of complications associated with different anterior fusion techniques/approaches and adjuvant resources (i.e., computed tomography angiography (CTA), rhBMP-2, and access surgeons).

METHODS: A systematic review was conducted from 1/1/2014-4/1/2024 for studies evaluating the incidence of complications associated with anterior lumbar procedures. Comparisons of complications were made between surgical approach, use of CTA, rhBMP-2, and access surgeons. Meta-analyses were conducted using a generalized linear mixed model.

RESULTS: 54 studies were included in the final analysis with 8066 patients and an average follow-up of 31.2 months. The overall …


Pre-Hospital And Post-Hospital Quality Of Care In Traumatic Spinal Column And Cord Injuries In Iran, Arman Zeinaddini-Meymand, Vali Baigi, Mohammad Mehdi Mousavi-Nasab, Sina Shool, Mohsen Sadeghi-Naini, Zahra Azadmanjir, Seyed Behnam Jazayeri, Samuel Berchi Kankam, Mohammad Dashtkoohi, Aidin Shakeri, Esmail Fakharian, Leila Kouchakinejad-Eramsadati, Habibollah Pirnejad, Homayoun Sadeghi-Bazargani, Laleh Bagheri, Yasaman Pourandish, Malihe Amiri, Ahmad Pour-Rashidi, James Harrop, Vafa Rahimi-Movaghar Mar 2025

Pre-Hospital And Post-Hospital Quality Of Care In Traumatic Spinal Column And Cord Injuries In Iran, Arman Zeinaddini-Meymand, Vali Baigi, Mohammad Mehdi Mousavi-Nasab, Sina Shool, Mohsen Sadeghi-Naini, Zahra Azadmanjir, Seyed Behnam Jazayeri, Samuel Berchi Kankam, Mohammad Dashtkoohi, Aidin Shakeri, Esmail Fakharian, Leila Kouchakinejad-Eramsadati, Habibollah Pirnejad, Homayoun Sadeghi-Bazargani, Laleh Bagheri, Yasaman Pourandish, Malihe Amiri, Ahmad Pour-Rashidi, James Harrop, Vafa Rahimi-Movaghar

Department of Neurosurgery Faculty Papers

STUDY DESIGN: A retrospective study.

OBJECTIVES: The quality of care (QoC) for spinal column/cord injury patients is a major health care concern. This study aimed to implement the QoC assessment tool (QoCAT) in the National Spinal Cord/Column Injury Registry of Iran (NSCIR-IR) to define the current state of pre- and post-hospital QoC of individuals with Traumatic Spinal Column and Spinal Cord Injuries (TSC/SCIs).

METHODS: The QoCAT, previously developed by our team to measure the QoC in patients with TSC/SCIs, was implemented in the NSCIR-IR. The pre-hospital QoC was evaluated through a retrospective analysis of NSCIR-IR registry data. Telephone interviews and …


An Adaptive Antiretroviral Therapy Adherence Intervention For Youth With Hiv Through Text Message And Cell Phone Support With And Without Incentives: A Sequential Multiple Assignment Randomized Trial (Smart), Marvin E Belzer, Karen Macdonell, Demetria Cain, Samiran Ghosh, Richard Zhao, Julie Mcavoy-Banerjea, Sitaji Gurung, Sylvie Naar Mar 2025

An Adaptive Antiretroviral Therapy Adherence Intervention For Youth With Hiv Through Text Message And Cell Phone Support With And Without Incentives: A Sequential Multiple Assignment Randomized Trial (Smart), Marvin E Belzer, Karen Macdonell, Demetria Cain, Samiran Ghosh, Richard Zhao, Julie Mcavoy-Banerjea, Sitaji Gurung, Sylvie Naar

Faculty, Staff and Student Publications

Youth living with HIV have low rates of medication adherence. Youth ages 15-24 years with adherence ≤ 80% or with HIV RNA PCRs (VL) ≥ 200 recruited through social media and clinical sites were randomized to brief weekday cell phone support (CPS) calls or daily, two-way, personalized text message (SMS) reminders for 3 months. Those with VL ≥ 200 or adherence ≤ 80% were rerandomized to receive SMS or CPS with monthly incentives for those utilizing the intervention at least 75% of days for 3 months. Those with VL < 200 or adherence > 80% after the initial 3 months were rerandomized to usual care …