Medicine and Health Sciences Commons^™

Interventional Approach To Intermediate-High-Risk Pe: Catheter-Directed Mechanical Thrombectomy, Shreya Agarwal, Kirill Ruban, Ishan Kirti, Karina Ruban, Fadi Saab, Sujata Kambhatla, Pranay Gupta

Conference Presentation Abstracts

Acute pulmonary embolism (PE) is a major cause of cardiovascular morbidity and mortality. The clinical outcomes are largely determined by thrombus burden and its hemodynamic impact on the right ventricle (RV). Over the past decade, catheter-directed mechanical thrombectomy has emerged as a promising alternative for systemic thrombolysis for PE management, particularly in patients at high risk for major bleeding. This approach provides rapid mechanical debulking of thrombus without exposure to thrombolytics and has been associated with significant improvements in RV function and pulmonary artery pressures. We present a case of extensive bilateral PE successfully treated with mechanical thrombectomy, highlighting the …

Right Ventricular Involvement In Stress Cardiomyopathy: A Case Of Biventricular Takotsubo With Cardiogenic Shock, Ahmad Muhammad, Yazan Alkehef, Theodore Schreiber

Conference Presentation Abstracts

Introduction Takotsubo cardiomyopathy (TC) is characterized by transient left ventricular (LV) dysfunction following a stressor in the absence of obstructive coronary artery disease. We present a case of a less common variant with right ventricular involvement. Hospital course A 45-year-old woman with sickle cell disease and asthma presented with nausea, vomiting, abdominal pain, and fevers, one week after the death of her father. Examination revealed an irregular tachycardia. Labs demonstrated leukocytosis, elevated lactate, and markedly increased troponin. Chest imaging showed bilateral basilar opacities. ECG demonstrated atrial flutter with rapid ventricular response. She developed progressive respiratory failure requiring intubation. Repeat ECG …

Risk-Stratified Transitional Care And Cardiovascular Hospitalizations By Sex: A Secondary Analysis Of A Randomized Clinical Trial., Douglas S Lee, Chang Nancy Wang, Peter C Austin, Sharon E Straus, Michael E Farkouh, Alice Chong, Monica Taljaard, Stephanie Poon, Stuart Smith, Robert S Mckelvie, Robert M Iwanochko, Andrea Macdougall, Esam Elbarasi, Peter M Cram, Jiming Fang, Clare L Atzema, Jacob A Udell, Paula A Rochon, Michael J Schull, Susanna Mak, Heather J Ross

Heart and Vascular Articles

IMPORTANCE: Female patients with heart failure (HF) are older and more often present with preserved left ventricular ejection fraction (LVEF), whereas male patients present with more ischemic disease. Despite these differences, an emergency department-based acute HF strategy may be equally applicable to both sexes.

OBJECTIVE: To determine whether the strategy for acute HF management in the Comparison of Outcomes and Access to Care for Heart Failure (COACH) trial differed by sex.

DESIGN, SETTING, AND PARTICIPANTS: This prespecified secondary analysis of the multicenter COACH stepped-wedge, cluster-randomized clinical trial included 10 acute care hospitals in Ontario, Canada. Data were collected from January …

Race To Mitigate Aortic Dissection: Exercise, Pde5a, And The Dissecting Aorta, Siddharth K Prakash

Faculty, Staff and Student Publications

No abstract provided.

Severe, Non-Apneic Respiratory Dysfunction And Hypoxia Following Generalized Convulsive Seizures, Haley E Pysick, Rup K Sainju, Roshni Nair, Deidre N Dragon, Eduardo Bravo, Laura Vilella, Xiaojin Li, Samden D Lhatoo, George B Richerson, Brian K Gehlbach

Faculty, Staff and Student Publications

Objective: Sudden unexpected death in epilepsy (SUDEP) is a devastating consequence of some generalized convulsive seizures (GCS). Recent work has focused on seizure related apnea as a biomarker of SUDEP risk, frequently without characterizing the adequacy of non-apneic ventilation or identifying other dysfunctional breathing patterns. We hypothesized that GCS frequently induce immediate, severe, non-apneic respiratory dysfunction that can induce critical hypoxia and bradycardia and sought to characterize breathing patterns after GCS.

Methods: Adult patients admitted to an epilepsy monitoring unit were studied. The effects of GCS on breathing and heart rate were analyzed using nasal pressure transducers, chest and abdominal …

A Mixed-Methods Investigation Of Physician Compassion In Consultations For Chronic Primary Pain, Sarah Daehler

All Graduate Theses and Dissertations, Fall 2023 to Present

Chronic primary pain refers to physical pain that has no apparent organic cause, cannot be explained by another condition, and has associated psychological distress or functional impairment. Chronic primary pain is common and can significantly interfere with functioning, including occupational or social functioning. Research has shown that physicians struggle to treat this population, with many physicians reporting feeling unequipped and many patients feeling that their physicians are unhelpful and dismissive. Compassion may play a key role in improving these difficult interactions. The present study analyzed a sample of 99 participants with chronic pain and 100 healthy controls to learn more …

Food-Form Delivery Of Spore-Forming Probiotics As An Alternative To Gavage In Animal Models, Aubreyona Faith Migliori Skalka

All Graduate Theses and Dissertations, Fall 2023 to Present

Western dietary patterns are characterized by nutrient-poor, calorie-rich diets and have been linked to poor health outcomes and gut inflammation phenotypes. Probiotics are often taken to support gut health, but many beneficial bacteria do not survive transport through the digestive system to produce any effect. Spore-forming bacteria, such as Bacillus coagulans, are more resilient due to their hardy outer coat which aids in survival through many obstacles encountered in the gastrointestinal tract, including acidic stomach conditions. In research studies, probiotics are usually given to mice through a procedure called oral gavage, where a tube is used to deliver the …

Characterizing Metabolic Flux Of Plant Secondary Metabolites From Diverse Animal-Source Foods To Humans, Muhammad Ahsin

All Graduate Theses and Dissertations, Fall 2023 to Present

There is a popular saying: “You are what you eat.” But does this also mean, “You are what your food eats”? This dissertation explores that question by examining how farming practices shape the nutritional quality of meat—and what, if anything, those differences mean for the people who consume it. While modern livestock production and nutrition research often emphasize protein and fat, this work tests the idea that animals function as biological mediators, linking soil and plant conditions to human diets through the chemical composition of meat and milk. To evaluate this hypothesis, we tracked health-relevant plant compounds— phytonutrients—across the soil–plant–animal–human …

Probing The Roles Of Connexin 43 Hemichannels In A Mouse Model Of Alzheimer's Disease, Madison Treasure-Areno

All Graduate Theses and Dissertations, Fall 2023 to Present

Alzheimer’s disease is a progressive disorder involving neuronal death and cognitive decline, such as memory loss and changes in personality. One feature of the disease is buildup of abnormal protein called amyloid-beta in the brain. Amyloid-beta may activate support cells called astrocytes, triggering them to release large amounts of chemicals, possibly harming nearby cells. This study set out to examine the roles of the channels on astrocytes involved in releasing these chemicals, called connexin 43 hemichannels. Using a mouse model of Alzheimer’s disease, this study blocked the hemichannels using the drug Tonabersat, and measured spatial learning and memory in a …

The Rodent Electronic Nicotine Delivery System (Rends): Effects Of Age On Self-Administration Of Inhaled Nicotine In Female Rats, Daniel Santos Da Silva

All Graduate Theses and Dissertations, Fall 2023 to Present

Smoking tobacco is the leading avoidable cause of death and drives many health problems. Nicotine, the main chemical in tobacco products, keeps people using it. This study used the Rat Electronic Nicotine Delivery System (RENDS), an inexpensive and freely shared, to examine e-cigarette use in adolescent and adult female rats by exploring four phases of nicotine delivered and not delivered to understand use patterns among ages. Our study found that both adolescent and adult female rats chose to inhale nicotine when given the opportunity, showing drug-seeking behavior. Overall, nicotine use was similar between ages. These results could help inform therapies, …

A Pilot Study Of A Culturally Responsive Cognitive-Behavioral Intervention For Black American High School Students With Social Anxiety, Hannah Thomas

Theses, Dissertations and Culminating Projects

Cognitive-behavioral interventions have been shown to be effective for treating social anxiety, yet few have been evaluated for racially and ethnically minoritized youth, including Black American adolescents. These interventions also do not address sociocultural factors, including racial discrimination and mental health stigma, that may shape the experience of social anxiety among Black American youth and serve as barriers to care. Therefore, the aim of this study was to conduct a pilot evaluation of the feasibility, acceptability, and preliminary outcomes of Interacting and Changing Our Narratives (ICON), a culturally-responsive, school-based cognitive-behavioral group intervention for Black American high school students with social …

Combined Middle Meningeal Artery Embolisation And Subdural Evacuation Port System Drainage For Chronic Subdural Haematoma: A Systematic Review, Single-Arm Meta-Analysis, Meta-Regression, And Cost-Benefit Analysis, Shiva A. Nischal, Santosh Guru, Shaan Patel, Ashviniy Thamilmaran, Mary Murphy

Department of Neurosurgery Faculty Papers

BACKGROUND: Chronic subdural haematoma (cSDH) is an increasingly prevalent condition in older, anticoagulated, and medically frail patients, in whom recurrence and perioperative risk remain substantial despite standard surgical evacuation. Growing recognition of cSDH as an angiogenic, inflammatory disorder has prompted interest in minimally invasive strategies that combine mechanical decompression with targeted modulation of the underlying vascular pathology. This study aimed to evaluate the safety, effectiveness, and health-economic profile of combined middle meningeal artery embolisation and subdural evacuation port system (MMAE-SEPS) drainage for cSDH, compared with conventional burr-hole evacuation.

METHODS: MEDLINE, Embase, and CENTRAL were searched from inception to 24th August …

Stromal Interaction Molecule (Stim) Proteins In Microglia And The Impact On Store-Operated Calcium Entry (Soce) And Spinal Cord Injury Recovery, Norah G. Hill

College of Arts & Sciences Senior Theses

In spinal cord injury (SCI), worsening functional outcomes are largely because of secondary injury processes and prolonged chronic inflammation. A major contributor of secondary injury is overload of intracellular calcium, causing neuronal overexcitation and persistent inflammatory responses. One of the primary mediators of calcium entry into the cell is store-operated calcium entry (SOCE). In SOCE, sensors detecting calcium depletion from the endoplasmic reticulum stores are called STIM proteins (1-2). When calcium is low in the cell, STIM proteins will activate Orai channels to open, allowing for the influx of calcium into the cell. The purpose of this study was to …

The Influence Of Valence On Action Control: A Comparison Of Simon Effects In The Extrinsic Affective Simon Task (East) And The Spatial Simon Task, Yaara Aleissa

College of Arts & Sciences Senior Theses

People adjust their thoughts and actions in response to a changing environment every day and emotions may influence these actions. Understanding how emotion impacts action control in situations where emotion is central to the action (task-relevant) compared to when it is present in the environment as distracting information (task-irrelevant) is essential. Currently it is unclear when emotion most significantly modulates action control. This study seeks to compare how valence (positive versus negative emotion) impacts action control performance when valence is task-relevant and task-irrelevant by using two modified versions of the Simon conflict task.

The Simon task is a paradigm to …

Effects Of A Passive Assistive Hamstring Device On Overground Running Kinematics And Hamstring Activation., Quinn Castner

All Theses

Hamstring strain injuries are among the most common and recurring injuries in sports, occurring most often during the terminal swing phase of gait. Despite progress in rehabilitation, the incidence of injury has only increased, suggesting a need for a novel intervention. We designed a passive, assistive, wearable device with two specific criteria in mind: to offload the hamstrings during running, and do so without hindering normal kinematic patterns. The device consists of an adjustable elastic band anchored proximally at the waist and distally just above the ankle joint center. It stretches and shortens with the hamstrings, providing passive hip extension …

The Burnout Machine: Finding The Guide Between Burnout And Meaning Making Using Ifs And Role Theory For Mental Health Professionals (An Integrative Literature Review), Jade Ahneman

Expressive Therapies Theses

Burnout is a syndrome in which compounded stress leads sufferers to feel physical and mental exhaustion, mental distancing, cognitive and emotional impairment, depressed mood, psychological distress, and psychosomatic complaints. Originally thought of as a phenomenon affecting only individuals in helping roles (i.e., mental health workers, teachers, nurses, and police officers), research on burnout and its effective management has become increasingly important since the 1980s, highlighting its pervasiveness across occupational and personal realms. This integrative literature review focused on understanding the effects of burnout on master 's-level counseling students, investigating how Internal Family Systems theory (IFS) and drama therapy’s role theory …

Art Therapy And A Strength-Based Approach For Working With Children With Emotional And Behavioral Challenges: A Qualitative, Arts-Based Study, James D. Wyld

Expressive Therapies Theses

Abstract

            Children with emotional and behavioral challenges represent a vulnerable population that needs more attention and innovative forms of treatment. The behavior of these young people is often marked by impulsive behaviors and intense emotions in the process of getting their basic needs met. The current study explores how a combination of art therapy and a strength-based approach is beneficial and appropriate for children in a behavioral based therapeutic school. Progress was traced through one singular client in both group and individual settings over the course of 6 months. Interventions varied with the goals of increasing self-awareness, fostering autonomy, increasing …

Plan To Develop A Theory-Based Diabetes Social Media Campaign For Spanish-Speaking Adults In Finney County, Ks: Integration Of A Promotora, Focused Discussion Groups, And Community Feedback To Ensure Cultural Appropriateness, Julevi P. Bernido

Capstone Experience: Master of Public Health

The 2025 Community Health Needs Assessment (CHNA) shows that over 11% of adults in Finney County, Kansas, have diabetes, which surpasses both state and national averages. Census data from 2016-2020 indicate that 42.6% of residents ages five and older speak a language other than English at home, and 36.1% speak Spanish (United States Census Bureau, n.d.). The CHNA further highlights concerns about language and cultural barriers to care, especially among the Spanish-speaking population. Notably, 21.74% of residents have limited English proficiency—much higher than the state’s 12.1% (CHNA, 2025).

This capstone will develop a theory-based social media campaign plan to support …

Ai×Life 2026: Advances In Computational Biology Across Scales For Life & Health Sciences, Suma Mohan S., Devika N. T., Pranavathiyani G.

Conference Proceedings

Book of Abstracts of the International Conference, AIxLife 2026: Advances in Computational Biology Across Scales for Life & Health Sciences, held on 17–18 April 2026, SASTRA Deemed to be University, Thanjavur, Tamil Nadu, INDIA 

About the Conference

Conventional computational biology laid the foundation for biological data analysis through statistical models, algorithms, and curated databases, enabling insights into genes, proteins, and pathways. Today, the integration of artificial intelligence, spanning machine learning, deep learning, and large language models (LLMs) is driving a transformative shift across biological scales, from atomic and molecular interactions to pathways, cellular systems, organisms, and populations.

AI-powered approaches …

Addressing Socioeconomic Factors Related To Health Disparities In Predominantly Hispanic Texas Communities, Gabriela M. Gomez

Theses & Dissertations

This qualitative study examined the socioeconomic factors that influenced health outcomes in predominantly Hispanic Texas communities in San Antonio, Texas. Few studies have been conducted that address how socioeconomic conditions have shaped the lives of the Hispanic population in Texas, indicating a significant gap in the research. The research question guiding this study asked: How do Hispanic individuals between the ages of 26 and 64 who live in predominantly Hispanic communities describe health disparities in San Antonio, Texas? To address the research question, a qualitative inquiry was conducted using semi-structured in-person interviews with participants who met the inclusion criteria. A …

Relationship Between Disordered Eating Behaviors And Sport In Female Collegiate Athletes, Elizabeth Files

General Human Environmental Sciences Undergraduate Honors Theses

Disordered eating behaviors and body image concerns remain prevalent among collegiate athletes, yet the role of sport type and sport-related environmental factors, such as uniforms, is not fully understood. The purpose of this study was to examine the relationship between sport type, uniform perception, and disordered eating behaviors among female collegiate athletes at the University of Arkansas. A quantitative, non-experimental design was used, with 36 athletes completing an anonymous Qualtrics survey incorporating demographic questions, uniform perception items, and the Eating Disorder Examination Questionnaire Short Form (EDE-QS).

Descriptive analyses indicated a predominantly young (ages 18–21), White, and underclassman sample. Chi-square analyses …

Dental Wear In Medieval Hungarian Populations, Sutton Walters

Honors College Theses

Dental wear can reveal past human behavior, offering insight into diet, daily activities and cultural practices (Berbesque et al., 2012; Deter, 2009; Estalrrich & Rosas, 2015; Górka, 2016; Molnar, 2008; Smith, 1984; Watson, 2014). Dental wear can reconstruct past life when other evidence is limited. This paper will address whether dental wear patterns observed in two medieval Hungarian populations, Kiskundorozsma–Kettőshatár I (KK) and SárrétudvariHízóföld (S), reflect sexual dimorphism patterns seen in hunter-gatherer vs. agriculturalist populations. Previous research demonstrates clear differences in wear between high- and lowwear subsistence strategies, whereas other studies report minimal or no sexual dimorphism and little variation …

Sleep In Children In Foster Care: A Scoping Review, Juan Castellanos, Anna Wani, Jill Mcleigh

Health Status, Outcomes, and Literacy and Healthcare Utilization

Although the focus on sleep disturbances in children who have experienced adversity has increased, little is known about sleep among children in foster care (CFC). This study aimed to review what research tells us about the relationship between foster care experience and sleep disturbances and to identify knowledge gaps.

For questions about this study or others, please email [email protected]

childrens.com/fostercare

Donor Sex And Platelet Storage Change The Therapeutic Effects Of Platelet-Derived Extracellular Vesicles On Endothelium, Mandeep Kaur, Malvika Gupta, Sowmya Shree Gopal, Charles E Wade, Jessica C Cardenas, Amit K Srivastava

Faculty, Staff and Student Publications

Platelet-derived extracellular vesicles (PEVs) play an active role in vascular protection and repair and are being explored as a viable alternative to platelet therapy. Because platelet function and stability are shaped by donor sex and storage conditions, these same factors are likely to influence the PEVs they release. Understanding these influences is key to developing PEVs into a safe and dependable therapeutic option. In this study, we investigated how donor sex and platelet storage affect the therapeutic properties of PEVs. To address this, PEVs were isolated from platelets of healthy male and female donors. Platelets were either processed immediately after …

Are Drains After Trauma Splenectomy Associated With Organ Space Surgical Site Infections?, Stephanie Martinez Ugarte, Mokunfayo O Fajemisin, Seokhun Kim, William D Rieger, Renee W Green, Gabrielle E Hatton, Lillian S Kao

Faculty, Staff and Student Publications

Introduction: Left upper quadrant (LUQ) drain use after trauma splenectomy varies, with minimal existing data to guide practice. We aimed to investigate the association of LUQ drains with organ space surgical site infection (OS-SSI) after splenectomy. We hypothesized that LUQ drains after trauma splenectomy are associated with increased odds of OS-SSI.

Patients and methods: A retrospective study of adult blunt trauma patients who underwent splenectomy from 7/2018 to 6/2024 was performed. We excluded patients who survived < 5 days after operation, and those with an intraoperatively identified pancreatic injury. Demographics, surgical details, and drain information were abstracted from the medical record. Inverse probability of treatment weighting (IPTW) was used to balance variables between patients who did and did not receive an LUQ drain after splenectomy. Multivariable logistic regression with IPTW was performed to estimate the association of LUQ drains with OS-SSI.

Results: Of 179 patients, 68% (n = 121) were male, the median age was 38 years (interquartile range 28, 55), and 27% (n = …

Structural Brain Differences Associated With Panic Disorder: An Enigma-Anxiety Working Group Mega-Analysis Of 4924 Individuals Worldwide, Laura K M Han, Willem B Bruin, Janna Marie Bas-Hoogendam, Nynke A Groenewold, Kevin Hilbert, Anderson M Winkler, Andre Zugman, Takeshi Asami, Jacques P Barber, Francesco Benedetti, Robert J R Blair, Joscha Böhnlein, Paolo Brambilla, Fabian Breuer, Randy L Buckner, Robin Bülow, Monica E Calkins, Natalia Chechko, Udo Dannlowski, Katharina Dohm, Katharina Domschke, Thomas Dresler, Angelika Erhardt-Lehmann, Gregory A Fonzo, Andreas J Forstner, Hans J Grabe, Dominik Grotegerd, Raquel E Gur, Ruben C Gur, Catherine Harmer, David Hofmann, Odile A Van Den Heuvel, Neda Jahanshad, Tilo T J Kircher, Katharina Koch, Max A Laansma, Till Langhammer, Sang-Hyuk Lee, Elisabeth J Leehr, Eleonora Maggioni, Claire E Marino, Susanne Meinert, Hannah Meinert, Barbara Milrod, Benson Mwangi, Jared A Nielsen, Patricia Ohrmann, Spiro P Pantazatos, Martin P Paulus, Brenda W J H Penninx, Sara Poletti, Andrea Reinecke, Isabelle C Ridderbusch, Pavel Rjabtsenkov, Philipp G Sämann, Theodore D Satterthwaite, Lianne Schmaal, Elisabeth Schrammen, Jair C Soares, Nili Solomonov, Murray B Stein, Benjamin Straube, Thomas Straube, Benjamin Suarez-Jimenez, Jordan W Smoller, Ardesheer Talati, Sophia I Thomopoulos, Carlos E Vazquez, Henry Völzke, Katharina Wittfeld, Mon-Ju Wu, Yunbo Yang, Giovana B Zunta Soares, Ulrike Lueken, Paul M Thompson, Daniel S Pine, Dan J Stein, Nic J A Van Der Wee, Dick J Veltman, Moji Aghajani

Faculty, Staff and Student Publications

Neuroanatomical findings on panic disorder (PD) are typically difficult to replicate, with inconsistent effects. These concerns prompted a paradigm shift towards large-scale collaborations, focused on harmonized data extraction and processing for robust examination of PD brain correlates. Hence, leveraging the largest-ever multi-site neuroimaging database on PD (Age: 10–66 years; global sites: 28), compiled by the ENIGMA-Anxiety Working Group, we report on cortical and subcortical differences in individuals with PD (N = 1146) versus healthy controls (HC: N = 3778). The analyses revealed lower thickness and smaller cortical surface area within fronto-temporo-parietal regions in PD (Cohen’s ds: −0.08–0.13), along with lower …

Targeting The Dorsolateral Prefrontal Cortex With Transcranial Direct Current Stimulation To Improve Depression And Anxiety In Parkinson's Disease, Brock Renicks

Honors Theses

The aim of this study is to observe the outcomes of transcranial direct current stimulation (tDCS) as a treatment for Parkinson’s Disease (PD). This study will primarily look at changes in depression and anxiety, as these symptoms are often comorbid with Parkinson’s Disease. Transcranial direct current stimulation is a non-invasive, very low-intensity form of electrical stimulation of the brain. It is being increasingly used as a form of treatment for Parkinson’s Disease and depression and anxiety, however the literature is ambiguous, showing mixed results throughout various studies, with no standardization of tDCS administration. To determine the effect of tDCS on …

Substance Use And Childhood Environment In Adolescent Head Injury: Examining The Effects Of Race, Jessica A. Phelps

Department of Sociology: Dissertations, Theses, and Student Research

Adolescents participating in sports are at an increased risk of concussion, which is particularly important given the difficulties with cognitive function, emotion regulation, and impulsivity that may occur as a result of this brain injury. These symptoms can predispose adolescents to subsequent concussions, leading to further damage during a critical time in neurodevelopment which can result in mental health disorder development in adulthood. It is crucial to understand what factors may predispose youth to increased rates of concussion for these reasons. As such, this paper explored whether race/ethnicity, gender, grade in school, childhood environment, and risk-taking behaviors were associated with …

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 …

Antidepressant-Like Effects Of Extinction Learning As An Animal Model Of Behavioral Therapy, Jing Liu, Sarah E Bulin, David A Morilak

Faculty, Staff and Student Publications

Exposure-based behavioral therapy, the most effective treatment for posttraumatic stress disorder (PTSD), also reduces depressive symptoms. However, neurobiological mechanisms underlying the beneficial effects of exposure-based behavioral therapy on depression remain unknown. Our lab has established fear extinction as a rat model of exposure therapy to investigate the mechanisms underlying its therapeutic behavioral effects in chronically stressed rats. In this study, we demonstrated that extinction learning reduced immobility in the forced-swim test and reversed chronic stress-induced reduction in sucrose preference. Chemogenetic inactivation of pyramidal neurons in the ventral medial prefrontal cortex (vmPFC) prevented these antidepressant-like effects of extinction. Extinction learning enhanced …