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Fetal Vascular Malperfusion And Other Placental Lesions In Relation To Maternal Sars-Cov-2 Exposure: A Case–Control Study, Irene Mwandoto, Marleen Temmerman, Ingrid Gichere, Patricia Okiro May 2026

Fetal Vascular Malperfusion And Other Placental Lesions In Relation To Maternal Sars-Cov-2 Exposure: A Case–Control Study, Irene Mwandoto, Marleen Temmerman, Ingrid Gichere, Patricia Okiro

Pathology, East Africa

Background:

The morphologic characteristics of placentas associated with coronavirus disease-19 (COVID-19) have been described but with varying findings. Studies conducted at the onset of the pandemic reported frequency of Fetal Vascular Malperfusion (FVM), an umbrella term that describes occlusive vasculopathies that affect fetal circulation and their associated sequelae. Morphologic manifestations include thrombosis, avascular villi and vascular stromal karyorrhexis. Associated outcomes include fetal growth restriction, thromboembolic events such as neonatal stroke and fetal demise. Placental lesions associated with a severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) infection present a unique picture in histology, especially in the attempt to decipher the …


Global Perspectives On Central Nervous System Drug Innovation: Achievements, Barriers, And Priorities For The Next Decade, Hiroyuki Uchida, Gabriella Gobbi, Joseph Zohar, Allan Young, Dan Rujescu, Ming-Chyi Huang, Suresh Sundram, Lukoye Atwoli, Jana Vukovic, Kazutaka Ikeda May 2026

Global Perspectives On Central Nervous System Drug Innovation: Achievements, Barriers, And Priorities For The Next Decade, Hiroyuki Uchida, Gabriella Gobbi, Joseph Zohar, Allan Young, Dan Rujescu, Ming-Chyi Huang, Suresh Sundram, Lukoye Atwoli, Jana Vukovic, Kazutaka Ikeda

Internal Medicine, East Africa

Background Over the past decade, neuropsychopharmacology has shifted from stagnation to momentum, with first-in-class mechanisms and biomarker-enabled trials spanning psychiatry and neurology.

Methods We narratively synthesized advances from 2013 to 2026 across central nervous system (CNS) discovery and development, including pivotal trials, regulatory actions, digital/real-world evidence, genetics, artificial intelligence (AI), and implementation/global-access themes that are endorsed by international societies.

Results Therapeutic gains include rapid-acting drugs for treatment-resistant depression (intranasal esketamine); psychedelic-assisted therapy for posttraumatic stress disorder and depression; neuroactive steroid γ-aminobutyric acid-A receptor positive allosteric modulators (brexanolone, zuranolone) for postpartum depression; non-dopaminergic muscarinic agonists (xanomeline–trospium) for schizophrenia; orexin receptor antagonists …


Transitioning To Adolescent And Young Adult Or Adult Cancer Survivorship Care: A Systematic Review Of Contemporary Guidelines And Trials, Darren Haywood, Hammersley, Ursula Sansom-Daly, Jordana Mcloone, Evan Dauer, Helen Wilding, Nicolas H. Hart, Thomas Walwyn May 2026

Transitioning To Adolescent And Young Adult Or Adult Cancer Survivorship Care: A Systematic Review Of Contemporary Guidelines And Trials, Darren Haywood, Hammersley, Ursula Sansom-Daly, Jordana Mcloone, Evan Dauer, Helen Wilding, Nicolas H. Hart, Thomas Walwyn

Research outputs 2022 to 2026

Background: Health service transitions of child, adolescent, and young adult cancer survivors between paediatric and adult cancer care services are pervasively fragmented, resulting in poor coordination, reduced satisfaction, and adverse outcomes for cancer survivors and significant others (e.g., caregivers and family members). Numerous trials and clinical guidelines have been developed to support care transitions, but their convergence, divergence, and methodological quality remain unclear. To advance clinical practice and quality research about care transitions, a synthesis of trials and guidelines on child, adolescent, and young adult care transition across age-appropriate cancer services is required to inform future research, practice, guideline, and …


Co-Location Of Substance Use Disorder Treatment And Hospital Emergency Departments, Leila Hasan May 2026

Co-Location Of Substance Use Disorder Treatment And Hospital Emergency Departments, Leila Hasan

Honors College Theses

Patients with substance use disorder (SUD) rely heavily on the hospital emergency department (ED) for acute care and are often discharged from the ED without access to long-term recovery resources. This project explores the impact of co-located addiction treatment programs with hospital EDs on recovery outcomes of patients with SUD. A systematic literature review conducted on relevant studies indicates that co-located programs can be effective in increasing treatment initiation and maintenance, reducing ED revisits, and reducing repeated overdose in SUD patients. Programs that were most effective included three key elements: fast linkage of SUD patients to program staff in the …


Understanding Delays In Emergency Department Care: A National Analysis Of Wait Times, Gregory Forsberg May 2026

Understanding Delays In Emergency Department Care: A National Analysis Of Wait Times, Gregory Forsberg

Mathematics, Statistics, and Computer Science Honors Projects

Emergency department (ED) wait times remain a persistent bottleneck in the United States healthcare system, impacting patient outcomes, hospital efficiency, and equitable access to care. This study analyzes nationally representative data from the National Hospital Ambulatory Medical Care Survey (NHAMCS), a complex, multi-stage probability sample. Using survey-weighted analyses and predictive modeling, we examine the effects of patient characteristics, triage acuity, and visit timing. Results indicate that operational and system-level factors, including hospital capacity, geographic region, and temporal variation, are among the most influential predictors of ED wait times


Evaluating Spect Neuroimaging In Psychiatric Diagnosis: A Critical Review And Proposed Randomized Controlled Study, Kiley Carter May 2026

Evaluating Spect Neuroimaging In Psychiatric Diagnosis: A Critical Review And Proposed Randomized Controlled Study, Kiley Carter

Senior Honors Theses

Mental illness affects a substantial proportion of adults in the United States, yet psychiatric diagnosis remains subject to diagnostic variability. Single-photon emission computed tomography (SPECT) is a neuroimaging technique that measures cerebral blood flow and has been proposed as an adjunctive tool for psychiatric evaluation. Existing literature reports group-level perfusion patterns associated with certain psychiatric conditions, suggesting potential utility in diagnosing complex or treatment-resistant cases. However, critics of SPECT emphasize the absence of randomized controlled data demonstrating improved patient outcomes. To address this gap, a prospective randomized controlled trial comparing standard psychiatric care with SPECT-guided evaluation is proposed. The proposed …


Navigating The Nicu Without Words: A Case Study Of A Spanish-Speaking Mother’S Healthcare Experience, Emma Norris May 2026

Navigating The Nicu Without Words: A Case Study Of A Spanish-Speaking Mother’S Healthcare Experience, Emma Norris

Poster Presentations

Research on NICU experiences largely focuses on majority-language families; non-English-speaking families are understudied (Cleveland, 2008). The Family Integrated Care model promotes parent-infant connection and shared decision-making to improve outcomes (Wreesmann et al., 2020). Language barriers impede parent-provider communication, increasing miscommunication and parental anxiety (Kynoe et al., 2020; Ardal et al., 2011). The purpose of this research is to explore communication experiences and barriers between English-speaking and bilingual NICU nurses and a Spanish-speaking NICU mother.


Seeing Skin, Seeking Evidence: Lessons From A Dermatology Internship, Isabella Floyd May 2026

Seeing Skin, Seeking Evidence: Lessons From A Dermatology Internship, Isabella Floyd

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Indoor tanning exposes individuals to artificial ultraviolet (UV) radiation through devices such as tanning beds and sunlamps, increasing the risk of skin damage and malignancy. Prior research suggests associations between indoor tanning and melanoma, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC), with potential variation based on age of initiation and cumulative exposure.

Purpose: The purpose of this literature review was to examine the association between indoor tanning and skin cancer risk, with a focus on age at first exposure, frequency, and duration of tanning bed use across melanoma, BCC, and SCC outcomes.

Methodology: A structured literature review …


Agnikarma Therapy In Management Of Plantar Fasciitis (Vatakantaka): A Systematic Review Of Ayurvedic Case Reports, Karishma Sebastian, Nidhin John, Amanda Killeen May 2026

Agnikarma Therapy In Management Of Plantar Fasciitis (Vatakantaka): A Systematic Review Of Ayurvedic Case Reports, Karishma Sebastian, Nidhin John, Amanda Killeen

School of Podiatric Medicine - Student Research

Plantar fasciitis is a leading cause of heel pain, commonly affecting adults aged 40–60, characterized by microtears and inflammation of the plantar fascia.

Conventional treatments (NSAIDs, corticosteroids, orthotics, surgery) often provide incomplete relief or cause adverse effects.

In Ayurveda, plantar fasciitis corresponds to Vatakantaka, a Vata-dominant condition of the heel region (Khudukapradesha).

Agnikarma, a para-surgical Ayurvedic technique involving therapeutic thermal cauterization using heated metallic rods (Shalaka), is described for disorders involving ligaments, bones, and joints with chronic pain and stiffness.

This review synthesizes clinical case reports evaluating Agnikarma as a treatment for plantar fasciitis to determine its efficacy, safety, and …


Promises, Pitfalls, And Paths Forward For The Pediatric Research Equity Act., Alexa L. Pagano, Danielle J. Green, Jennifer Goldman, Anjali Deshmukh May 2026

Promises, Pitfalls, And Paths Forward For The Pediatric Research Equity Act., Alexa L. Pagano, Danielle J. Green, Jennifer Goldman, Anjali Deshmukh

Manuscripts, Articles, Book Chapters and Other Papers

IMPORTANCE: Since its enactment in 2003, the Pediatric Research Equity Act (PREA) has significantly increased the number of pediatric drug studies performed and expanded pediatric drug labeling. Despite these advancements, many drugs used in children still lack pediatric-specific US Food and Drug Administration (FDA) labeling, even when pediatric studies are required by law. Recent legislative changes strengthened the FDA's enforcement authority over PREA. As these changes are implemented, persistent gaps in pediatric drug development warrant examination. Addressing these gaps may help ensure that children are systematically included in clinical research and that medications used in children are supported by rigorous …


Convergence And Divergence Of Opinion About Treatment Of Binocular Vision Disorders Among Vision Care Professionals, Sonia Young May 2026

Convergence And Divergence Of Opinion About Treatment Of Binocular Vision Disorders Among Vision Care Professionals, Sonia Young

Dissertations

There are three distinct professions prominent in the field of pediatric vision care. They are ophthalmology, optometry and orthoptics. All professions are integral to the detection and treatment of pediatric binocular vision disorders. However, distinct schools of thought exist to describe the best approach to pediatric binocular vision disorders and their treatments. Literature often highlights two opposing schools of thought represented by the “medical” and “behavioral” approaches. While there is academic debate about the merits and pitfalls of either approach, there is a paucity of nuanced perspectives which more closely resemble the ways in which pediatric ocular clinicians approach diagnosis …


Factors Associated With Postpartum Depression Symptoms Following Antepartum Hospitalization, Alison N Goulding, Daniel Palacios, Sukru Aras, Hu Chen, Sasidhar Pasupuleti, Marika Toscano, Nicole Cirino, Israel C Christie, Zhandong Liu, Emily S Miller, Terri L Fletcher May 2026

Factors Associated With Postpartum Depression Symptoms Following Antepartum Hospitalization, Alison N Goulding, Daniel Palacios, Sukru Aras, Hu Chen, Sasidhar Pasupuleti, Marika Toscano, Nicole Cirino, Israel C Christie, Zhandong Liu, Emily S Miller, Terri L Fletcher

Duncan NRI Faculty and Staff Publications

Background: Hospitalized antepartum patients are at increased risk for postpartum depression (PPD). Developing approaches to identify those at highest risk for PPD would enable timely and targeted intervention.

Objective: We aimed to identify factors associated with the development of PPD symptoms in hospitalized antepartum patients and to assess their predictive utility.

Study design: This retrospective cohort study included pregnant individuals hospitalized in a regional referral center due to medical or obstetric complications between 2012 and 2025. Data were extracted from the electronic health record, including demographics, medical and obstetric history, hospitalization characteristics, and postpartum Edinburgh Postnatal Depression Scale (EPDS) scores …


Evaluation Of The Effectiveness Of Antihypertensive Therapy Chosen Through Maternal Hemodynamic Profile Analysis, Margaret Weimer May 2026

Evaluation Of The Effectiveness Of Antihypertensive Therapy Chosen Through Maternal Hemodynamic Profile Analysis, Margaret Weimer

Honors Theses

Medication choice is tightly regulated in most situations, but in the field of obstetric medicine, the American College of Obstetricians and Gynecologists (ACOG) recommends both labetalol and nifedipine as oral treatments for emergent hypertension, with no preference shown between the two. Studies have suggested that consideration of hemodynamic profile may be an effective way to determine medication, but have not considered the Rule of 55, a simple calculation to predict hemodynamic profile. The goals of this study were to determine whether tailoring the oral hypertensive medication to a patient’s hemodynamic profile is associated with better blood pressure control within 72 …


Novel Biomarker Discovery In Multiple Sclerosis, Manisha Gangasani May 2026

Novel Biomarker Discovery In Multiple Sclerosis, Manisha Gangasani

Honors Theses

Multiple Sclerosis (MS) is a chronic neuroinflammatory disorder affecting the brain, spinal cord, and optic nerve. Patients experience cognitive, motor, autonomic, and emotional symptoms that often overlap with other neurological conditions, making early diagnosis challenging. Current diagnostic criteria require evidence of lesions with dissemination in time and space. Racial disparities in MS outcomes are well documented, with Black individuals often exhibiting greater disease severity, higher relapse rates, and increased disability compared to White individuals. These differences likely reflect a combination of genetic, biological, environmental, and healthcare access factors, underscoring the need to improve early diagnosis and reduce inequities in care. …


Global Perspectives On Cns Drug Innovation: Achievements, Barriers, And Priorities For The Next Decade, Hiroyuk Uchida, Gabriella Gobbi, Joseph Zohar, Allan Young, Dan Rujescu, Ming-Chyi Huang, Suresh Sundram, Lukoye Atwoli, Jana Vukovic, Kazutaka Ikeda May 2026

Global Perspectives On Cns Drug Innovation: Achievements, Barriers, And Priorities For The Next Decade, Hiroyuk Uchida, Gabriella Gobbi, Joseph Zohar, Allan Young, Dan Rujescu, Ming-Chyi Huang, Suresh Sundram, Lukoye Atwoli, Jana Vukovic, Kazutaka Ikeda

Internal Medicine, East Africa

Background Over the past decade, neuropsychopharmacology has shifted from stagnation to momentum, with first-in-class mechanisms and biomarker-enabled trials spanning psychiatry and neurology.

Methods We narratively synthesized advances from 2013 to 2026 across central nervous system (CNS) discovery and development, including pivotal trials, regulatory actions, digital/real-world evidence, genetics, artificial intelligence (AI), and implementation/global-access themes that are endorsed by international societies.

Results Therapeutic gains include rapid-acting drugs for treatment-resistant depression (intranasal esketamine); psychedelic-assisted therapy for posttraumatic stress disorder and depression; neuroactive steroid γ-aminobutyric acid-A receptor positive allosteric modulators (brexanolone, zuranolone) for postpartum depression; non-dopaminergic muscarinic agonists (xanomeline–trospium) for schizophrenia; orexin receptor antagonists …


Beyond The Cycle: How Menstruation Influences Gender Identity And Well-Being In Binary And Non-Binary Adults, Rin Nguyen May 2026

Beyond The Cycle: How Menstruation Influences Gender Identity And Well-Being In Binary And Non-Binary Adults, Rin Nguyen

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Approximately 1.8 billion people worldwide menstruate, including transgender and gender-diverse (TGD) people, yet their experiences remain underrepresented in research. Given that menstruation can affect gender alignment and psychological well-being, understanding its impact on TGD people is critical. Gender congruence, or alignment between one’s gender identity and expression, is a key factor influencing well-being, with research linking it to reduced depression and anxiety. Furthermore, emerging research on gender euphoria, the joy experienced when gender congruence is experienced, suggests it may serve as a protective factor for mental health and well-being. Gender euphoria has been associated with reduced psychological distress and increased …


Clinical Pathway For Rhogam Administration In The Emergency Department, Lauren Kyzar, Amy Bigham May 2026

Clinical Pathway For Rhogam Administration In The Emergency Department, Lauren Kyzar, Amy Bigham

Appalachian Student Healthcare Research Review

Background: Clinical pathways in emergency departments (ED) are designed to standardize patient care and reduce variability in clinical practice. In a rural hospital setting, the ED management of RhoGAM administration in pregnant patients with vaginal bleeding varied by provider with no standard of care achieved. This approach raised concerns about potential patient safety issues.

Methods: In response, the local emergency department medical director, in conjunction with local perinatal providers developed a clinical pathway to standardize care and optimize RhoGAM administration. The clinical pathway was implemented to the local ED providers over a three-month period. Retrospective chart review for Type and …


A Meta-Analysis Of Endometrial Cancer Metabolites As Potential Non-Invasive Biomarkers, Makenna K. Johnson May 2026

A Meta-Analysis Of Endometrial Cancer Metabolites As Potential Non-Invasive Biomarkers, Makenna K. Johnson

Honors Theses

Endometrial Cancer (EC) is the most prevalent gynecological cancer in the United States and causes tens of thousands of deaths. Despite its massive negative impact in developed countries, there currently is no reliable screening tool used to diagnose women. Due to this urgent need for minimally invasive and precise techniques to diagnose this malignancy, the metabolomics field has been at the forefront of current research. An untargeted mass-spectrometry approach is used by many researchers to form an initial hypothesis as to which metabolites are key in identifying EC cases. However, there are sometimes inconsistencies between studies. A meta-analysis approach examines …


Preclinical Animal Modeling To Investigate Redox-Mediated Molecular Dysfunction In Traumatic Brain Injury, Brandon Z. Mcdonald May 2026

Preclinical Animal Modeling To Investigate Redox-Mediated Molecular Dysfunction In Traumatic Brain Injury, Brandon Z. Mcdonald

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

Impacts associated with traumatic brain injury (TBI) induce a multitude of neurological morbidities mediated by a spread of biochemical dysfunction. Redox stress is a significant contributor to TBI pathophysiology and several redox stress markers have substantial evidence to support their role in diagnosing preclinical and clinical TBI. However, there is a critical need to verify their translational utility through correlations with behavioral, imaging, and molecular modalities. In chapter two, we examined the therapeutic efficacy of an antioxidant treatment (NPC3) using a controlled cortical impact (CCI) mouse model of TBI. NPC3 alleviated glial expression and reactivity while influencing the expression of …


The Camus Initiative: A Multiphase, Multicentre International Collaboration To Redefine Risk Stratification, Reporting, And Grading Of Surgical Complications In Urology., Christopher Soliman, Niranjan J. Sathianathen, Niall M. Corcoran, Nathan Lawrentschuk, Patrick Y. Wuethrich, Marc A. Furrer, Paul Chung, Camus Study Group Collaborators May 2026

The Camus Initiative: A Multiphase, Multicentre International Collaboration To Redefine Risk Stratification, Reporting, And Grading Of Surgical Complications In Urology., Christopher Soliman, Niranjan J. Sathianathen, Niall M. Corcoran, Nathan Lawrentschuk, Patrick Y. Wuethrich, Marc A. Furrer, Paul Chung, Camus Study Group Collaborators

Department of Neurology Faculty Papers

Surgical complications remain a major source of preventable morbidity, mortality, and health care expenditure, but existing frameworks such as the Clavien-Dindo classification and Comprehensive Complication Index are clinician-centred and intervention-focused and fail to capture cumulative patient-centred outcomes. This protocol outlines the Complications After Major and Minor Urological Surgery (CAMUS) initiative, a global, multiphase effort to redefine complication reporting, risk stratification, and outcome measurement in urological surgery. CAMUS aims to address these limitations via an integrated, seven-arm programme combining retrospective and prospective data analysis, consensus development, and digital infrastructure design. Arm 1 has assembled a retrospective data set of 130 034 …


Population Pharmacokinetics And Dosing Simulations Of Pentobarbital In The Pediatric Population, Victoria Etges Helfer, Lorena Medina-Aymerich, William J. Muller, Marisa Meyer, Amira Al-Uzri, Russell Mcculloh, Chi D. Hornik, Stephen J. Balevic, Rachel G. Greenberg, Daniel K. Benjamin, Sarah G. Anderson, Daniel Gonzalez May 2026

Population Pharmacokinetics And Dosing Simulations Of Pentobarbital In The Pediatric Population, Victoria Etges Helfer, Lorena Medina-Aymerich, William J. Muller, Marisa Meyer, Amira Al-Uzri, Russell Mcculloh, Chi D. Hornik, Stephen J. Balevic, Rachel G. Greenberg, Daniel K. Benjamin, Sarah G. Anderson, Daniel Gonzalez

Department of Pediatrics Faculty Papers

Pentobarbital is a barbiturate with sedative and anticonvulsant properties, occasionally used in pediatric patients for preoperative sedation, deep sedation during mechanical ventilation, and seizure control. Despite its long-standing clinical use, age-appropriate dosing remains challenging due to variability across studies and limited pediatric pharmacokinetic (PK) data. This study (NCT01431326) aimed to characterize the population pharmacokinetics of pentobarbital in pediatric patients (birth to 21 years) and evaluate dosing strategies using model-based simulations. A two-compartment population PK model, allometrically scaled to total body weight, adequately described pentobarbital plasma concentrations, with no additional covariates identified as significant. Simulations were conducted across four age groups: …


Validation Of A Real-Time Pcr Laboratory Developed Test For The Detection Of Pneumocystis Jirovecii In Bronchoalveolar Lavage Samples, Caitlyn Moon May 2026

Validation Of A Real-Time Pcr Laboratory Developed Test For The Detection Of Pneumocystis Jirovecii In Bronchoalveolar Lavage Samples, Caitlyn Moon

Honors Scholar Theses

Pneumocystis jirovecii is an opportunistic, host-obligate fungal pathogen responsible for causing P. jirovecii pneumonia (PJP) in humans. PJP is treated with trimethoprim-sulfamethoxazole (TMP-SMX), a strong broad-spectrum antibiotic that carries risk of renal and hepatotoxicity. Therefore, rapid diagnosis or exclusion of PJP is crucial to ensure PJP-positive patients receive effective treatment and PJP-negative patients avoid unnecessary antibiotics. Unlike most microorganisms, P. jirovecii cannot be cultured, presenting complications for the typical methods of diagnosing fungal pathogens. Historically, the gold standard for diagnosis was direct microscopic examination with stains such as methenamine silver and calcofluor white, but this diagnostic technique requires highly skilled …


Play To Win: A Randomized Controlled Trial To Assess The Effects Of Play-Based Training On Upper Extremity Function In Children With Hemiplegia, Vivian London May 2026

Play To Win: A Randomized Controlled Trial To Assess The Effects Of Play-Based Training On Upper Extremity Function In Children With Hemiplegia, Vivian London

Honors Scholar Theses

Hemiplegia, or paralysis of one side of the body, is the primary symptom of unilateral cerebral palsy, a subtype of cerebral palsy, the most common movement disorder in children. Standard of care is regular physical and occupational therapy to improve performance in bimanual activities, but conventional therapy can be expensive and draining for caregivers and children, so a need exists for a novel intervention that can take place at home and that is economical for families while being engaging for children. This thesis reports data from a subset of ten children seen as part of a randomized controlled clinical trial …


The Development Of A Crispr-Based Calibrated Functional Assay For Classifying Pathogenicity Of Msh2 And Msh6 Variants In Lynch Syndrome, Olivia N. Amodeo May 2026

The Development Of A Crispr-Based Calibrated Functional Assay For Classifying Pathogenicity Of Msh2 And Msh6 Variants In Lynch Syndrome, Olivia N. Amodeo

Honors Scholar Theses

Lynch syndrome is a hereditary disease caused by the inheritance of a mismatch repair gene variant. Individuals with this condition are predisposed to cancer development, most commonly colorectal cancer. Current guidelines for variant classification are based on numerous evidence categories, including functional evidence. However, many novel clinical variants are not well characterized, and evidence is difficult to obtain if functional assays are not calibrated.

To address this, our lab created a calibrated functional assay that calculates an odds of pathogenicity score for MSH2 and MSH6 gene variants that can be used as evidence for classifying variants of uncertain significance. This …


Pattern Dynamics And Stochasticity Of Brain Rhythms And Spike Trains In A Tauopathy Mouse Model Of Alzheimer’S Disease, Clarissa M. Hoffman May 2026

Pattern Dynamics And Stochasticity Of Brain Rhythms And Spike Trains In A Tauopathy Mouse Model Of Alzheimer’S Disease, Clarissa M. Hoffman

Dissertations and Theses (Open Access)

Systems neuroscience posits that every aspect of perceived physical reality, every aspect of animal and human behavior, and every cognitive phenomenon emerges from patterns of neuronal activity. While most researchers embrace this idea, there are major difficulties in describing and analyzing these complex neuronal dynamics—spike flows produced by cells ensembles, synchronized extracellular field oscillations, and other patterns—which limits our understanding of how the activity of individual neurons and the whole-animal cognition and behavior might be connected. In particular, we lack the approaches and even the semantics for connecting the individual cell outputs and the integrated results of their activity. Current …


A Global Prospective Harmonization Framework For Suicidality, Anhedonia, And Obsessive-Compulsive Symptoms In Psychiatric Genetic Studies: A Cross-Continental Study Within The Ancestral Population Network, Ana Diaz-Zuluaga, Jacey Anderberg, Ana Ramirez-Diaz, Andrea Marques, Catherine Rast, Daniel Bustamante, Deborah Jonker, Johanna Valencia-Echeverry, Stella Gichuru, Lukoye Atwoli May 2026

A Global Prospective Harmonization Framework For Suicidality, Anhedonia, And Obsessive-Compulsive Symptoms In Psychiatric Genetic Studies: A Cross-Continental Study Within The Ancestral Population Network, Ana Diaz-Zuluaga, Jacey Anderberg, Ana Ramirez-Diaz, Andrea Marques, Catherine Rast, Daniel Bustamante, Deborah Jonker, Johanna Valencia-Echeverry, Stella Gichuru, Lukoye Atwoli

Internal Medicine, East Africa

This study aims to prospectively collect harmonized, quantitative, and dimensional psychiatric phenotypes (suicidality, anhedonia, and obsessive-compulsive symptoms) and information on discrimination, stigma, and unfair treatment in up to 27,500 individuals across diverse ancestries and clinical populations for genetic analysis within the NIMH Ancestral Population Network (APN). Five APN projects are participating in the current study (PUMAS-Paisa, PUMAS-NeuroGAP, KOMOGEN-D, LATINO, and SAX-II), spanning recruitment over 15 countries across the Americas, Africa, and Asia. Participants are being enrolled via the recruitment protocols specific to each participating project. The harmonized clinical battery includes the Columbia-Suicide Severity Scale, Snaith-Hamilton Pleasure Scale, and Florida Obsessive-Compulsive …


Changes In Opioid Prescribing Patterns In Opioid Naive Patients Can Translate To Improved Outcomes In The Opioid Non-Naive Patients With Anterior Cervical Surgery: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Anisse Chaker, Geoff Kahn, Michael Melhem, Jian-Hui Hu, Kari Jarabek, Heegook Yeo, Bhargav Ayloo, Trevor Ruesch, Adam Junn, Jad Khalil, Kenneth Easton, Richard Easton, Doris Tang, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, David Nerenz, Victor Chang May 2026

Changes In Opioid Prescribing Patterns In Opioid Naive Patients Can Translate To Improved Outcomes In The Opioid Non-Naive Patients With Anterior Cervical Surgery: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Anisse Chaker, Geoff Kahn, Michael Melhem, Jian-Hui Hu, Kari Jarabek, Heegook Yeo, Bhargav Ayloo, Trevor Ruesch, Adam Junn, Jad Khalil, Kenneth Easton, Richard Easton, Doris Tang, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, David Nerenz, Victor Chang

Conference Presentation Abstracts

Introduction: Though often necessary for adequate analgesia after spine surgery, continued opioid use can lead to chronic dependency. The Michigan Spine Surgery Improvement Collaborative (MSSIC) has demonstrated in prior work the promise of utilizing a multi-institutional morphine milliequivalent (MME) cutoff for elective anterior cervical surgery in the opioid naıve population. However, the effect of this cutoff in patients who were already on opioids pre-operatively have not previously been studied. The goal of this study was to evaluate whether changes in prescribing patterns in the opioid naıve population would also translate to the non-naıve populations, and whether the non-naıve population would …


Implementation Of A Multi-Institutional Enhanced Recovery After Surgery (Eras) For Elective Spine Surgery: Two-Year Michigan Spine Surgery Improvement Collaborative (Mssic) Experience, Anisse Chaker, Kylie Springer, Kari Jarabek, Michael Melhem, Heegook Yeo, Jian-Hui Hu, Jad Khalil, Kenneth Easton, Richard Easton, Doris Tong, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, Victor Chang May 2026

Implementation Of A Multi-Institutional Enhanced Recovery After Surgery (Eras) For Elective Spine Surgery: Two-Year Michigan Spine Surgery Improvement Collaborative (Mssic) Experience, Anisse Chaker, Kylie Springer, Kari Jarabek, Michael Melhem, Heegook Yeo, Jian-Hui Hu, Jad Khalil, Kenneth Easton, Richard Easton, Doris Tong, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, Victor Chang

Conference Presentation Abstracts

Introduction: Enhanced Recovery After Surgery (ERAS) protocols have been introduced to several surgical specialties with the intention to reduce peri-operative adverse events and improve various health-system quality metrics including length of stay and patient satisfaction. Though this has been studied in the setting of spine surgery, the vast majority are single institution protocols biased toward academic teaching hospitals. There is a paucity of literature studying the utilization of a multi-institutional ERAS protocols that is applicable to community hospitals without associated training programs. We present the Michigan Spine Surgery Improvement Collaborative (MSSIC) two-year experience implementing a multi-institutional ERAS protocol for elective …


The Impact Of Covid-19 On Spine Surgery: Temporal Trends In Complications And Patient-Reported Outcomes Across A Statewide Cohort, Ali Mehaidli, Richard Easton, Ahmad Almaat, Gary George, Alqasim Elnaggar, Victor Chang, Doris Tong, Jad Khalil, Kevin Taliaferro May 2026

The Impact Of Covid-19 On Spine Surgery: Temporal Trends In Complications And Patient-Reported Outcomes Across A Statewide Cohort, Ali Mehaidli, Richard Easton, Ahmad Almaat, Gary George, Alqasim Elnaggar, Victor Chang, Doris Tong, Jad Khalil, Kevin Taliaferro

Conference Presentation Abstracts

Introduction: The COVID-19 pandemic caused major disruptions in elective surgical care, including spine surgery, due to widespread hospital restructuring and resource limitations. Although previous studies have examined surgical volumes and safety during the pandemic, limited data exist on how outcomes varied across multiple phases of the pandemic, especially in real-world, multicenter spine surgery populations. Material and Methods: This retrospective cohort study used data from the Michigan Spine Surgery Improvement Collaborative (MSSIC) to compare outcomes in patients undergoing lumbar or cervical spine surgery across four COVID-19 timeframes: pre-COVID (1/2019-2/2020), onset-COVID (3/2020-9/2020), active-COVID (10/2020-2/2022), and post-COVID (3/2022- 12/2022). Patient demographics, surgical characteristics, …


Halo Effect Of Prescribing Guidelines For Opioid Naive Patients Translates To Opioid Non-Naive Patients Undergoing Lumbar Decompression: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Anisse Chaker, Geoff Kahn, Michael Melhem, Jian-Hui Hu, Kari Jarabek, Heegook Yeo, Jawad Saad, Abdullah Al-Tekreeti, Kenneth Easton, Jad Khalil, Richard Easton, Doirs Tong, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, David Nerenz, Victor Chang May 2026

Halo Effect Of Prescribing Guidelines For Opioid Naive Patients Translates To Opioid Non-Naive Patients Undergoing Lumbar Decompression: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Anisse Chaker, Geoff Kahn, Michael Melhem, Jian-Hui Hu, Kari Jarabek, Heegook Yeo, Jawad Saad, Abdullah Al-Tekreeti, Kenneth Easton, Jad Khalil, Richard Easton, Doirs Tong, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, David Nerenz, Victor Chang

Conference Presentation Abstracts

Introduction: Chronic opioid dependency in spine surgery is an ongoing concern given the ongoing opioid epidemic. We have previously reported on our cohort of opioid-naıve patients, however the literature has shown that patients with opioid use at baseline are at higher risk of less favorable outcomes. Starting in 2022, MSSIC instituted state-wide prescribing guidelines for opioid naıve patients undergoing one- or two-level lumbar decompression surgery (laminectomy, laminotomy, foraminotomy, microdiscectomy) with performance goals of 80% compliance. The goal of this study was to evaluate whether there would be a form of a “halo” effect on prescribing patterns for patients with baseline …