Substance Abuse and Addiction Commons^™

Modulation Of Opioid Receptor Expression In The Ventral Tegmental Area Following Stress Exposure In Rats, Maya Patel, John Tkaczynski, Jordan Riser, Nicole Shellenbarger, Jin Park, Daniel Manvich, Daniel J. Chandler

Rowan-Virtua Research Day

Background: The ventral tegmental area (VTA) contains dopamine-producing neurons projecting to various brain regions. VTA dysfunction is linked to addiction and depression. Delta opioid receptor upregulation relates to chronic pain, inflammation, cancer, and early adversity. Kappa receptors in the VTA influence stress, drug-seeking, mood, and reward. Notably, chronic substance abuse upregulates the κ-receptor/dynorphin system, and the opioid system regulates social interaction needs.

Hypothesis: Stress will upregulate opioid receptors.

Methods: We compared group-housed and individually-housed rats using stress tests, analyzing behavior and quantifying VTA opioid receptor expression.

Results: Social isolation upregulated delta and kappa opioid receptors in …

The Relationship Of Peer Recovery Support Specialists And Recovery Of Perinatal Women With A Substance Use Disorder, Mary C. Talbot

Health, Human Performance and Recreation Undergraduate Honors Theses

Introduction: Substance use in pregnant and postpartum women is a growing issue in the United States. Drug use while pregnant can lead to birth defects, stillbirths, and problems providing positive parenting to their children. Many women with substance use disorders (SUD) feel extreme shame and stigma related to their substance use and have trouble accessing recovery-related treatment and other services. Peer recovery support treatment uses the lived experiences of individuals in current recovery from SUD to facilitate and support recovery in others. Purpose: The purpose of this review was to evaluate the impact of peer recovery support specialists on the …

The Impact Of Cocaine On Inflammatory Markers In Sim-A9 Microglial Cells, Tyler Vaglivelo

Honors Scholar Theses

Substance use disorders are conditions in which an individual continues to use a drug or other substance despite adverse consequences to their health and well-being. It has been hypothesized that inflammation within the central nervous system plays a critical role in the development of substance use disorders. The resident macrophages in the brain, also known as microglia, release markers of inflammation in response to injury or infection. A better understanding of the inflammatory response mediated by microglia in response to drugs of misuse can validate this hypothesis and help guide drug development. In the current studies, the microglia cell line …

Investigating Prefrontal Cortex Neuronal Signatures Of Opioid-Induced Risk-Taking Behavior, Cana Quave

Dissertations and Theses (Open Access)

Opioid use disorder occurs alongside impaired risk-related decision-making, but the underlying neural correlates are unclear. We developed an approach-avoidance conflict task using a modified conditioned place preference procedure to study neural signals of risky opioid seeking in the prefrontal cortex, a region implicated in executive decision-making. Following morphine conditioned place preference, rats underwent a conflict test in which fear-inducing cat odor was introduced in the previously drug-paired side of the apparatus. While the saline-exposed control group avoided cat odor, the morphine group included two subsets of rats that either maintained a preference for the paired side despite the presence of …

Investigating The Role Of The Hypocretin/Orexin System In A Novel Model Of Polysubstance Dependence, Tyler Zarin

Electronic Theses and Dissertations

Substance use disorders (SUD) in the United States are steadily increasing. Potent and dangerous substances such as methamphetamine (MA) and fentanyl (FEN) are often co-used as a polysubstance (POLY), either intentionally or unknowingly as FEN is a common adulterant. SUD is characterized by physiological and psychological dependence involving the negative reinforcement of anhedonia and withdrawal which drive hypermotivated drug-taking behaviors. Current theory suggests that recruitment of hypocretin/orexin (HCRT) neuropeptide in reward and stress associated brain regions contributes to drug dependence. Despite strong evidence for HCRT’s role in mono-drug dependence, a relevant model for POLY dependence has yet to be developed, …

Beyond Opioids: The Role Of Polysubstance Exposure In Neonatal Abstinence Syndrome Treatment And Hospitalization, Caelyn Harrison

Undergraduate Honors Theses

This thesis explores the impact of prenatal polysubstance exposure, specifically focusing on the need for pharmacological treatment for Neonatal Abstinence Syndrome (NAS) and the duration of their hospital stay. A retrospective analysis of 462 infants, including 121 exposed to polysubstances during pregnancy, showed significant associations between polysubstance exposure and adverse neonatal outcomes. Infants with prenatal polysubstance exposure were more likely to require pharmacological treatment for NAS (52.8%) compared to non-exposed infants (38.7%), as determined by chi-square analysis (χ²(1, N = 462) = 7.36, p = .007). Additionally, infants exposed to polysubstances experienced longer hospital stays on average (M = 14.88 …

Addiction In The Prison System: Recidivism And Alternatives, Daniel R. Bowers

Undergraduate Honors Theses

The United States criminal justice system has the highest number of incarcerated individuals in the world, with nearly 2 million people currently being behind bars, and around 7.5 million arrests per year according to the most recent available statistics. A key factor in this is addiction, specifically substance use disorders. Between 58% to 68% of adults arrested are addicted to one or more substances, with 68% of drug involved individuals being rearrested within three years of being released. This recidivism rate is incredibly high, and when combined with current prison and jail overcrowding, has created massive problems for the United …

The Impact Of Quality Of Life And Recovery Capital On Inhibitory Control In Patients On Medication For Opioid Use Disorder, Caroline K. Jeffries

All Theses

The opioid crisis persists as a global health challenge, necessitating a comprehensive understanding of the complex interplay between psychological factors and neurocognitive responses among individuals with opioid use disorder (OUD). Two such psychological factors include recovery capital, an individual's internal and external resources to supporting recovery, and quality of life. Past work suggests that positive levels of recovery capital and quality of life may enhance individuals’ ability to regulate emotions and manage cravings. However, it is unclear how these variables are affected when buprenorphine is taken. This study investigates the influence of recovery capital and quality of life on inhibitory …

Opioid Epidemic In Maine: An Analysis Of Increasing Overdose-Related Deaths Following The Coronavirus, Aysel S. Hamlin

Thinking Matters Symposium

The rate of drug overdose resulting in death doubled in Maine following the COVID-19 pandemic from the onset of the COVID-19 pandemic in late 2019 through 2022. The correlation between increased isolation during the pandemic and overdose death rates sheds a concerning light on the insufficient resources for people struggling with Opioid Use Disorder (OUD) throughout Maine. The increasing trade and access to fentanyl following the pandemic accounted for the majority of drug-related deaths in Maine in 2021 and 2022. This study examines the need for long-term access to drug treatment in rural and urban Maine, both environments with varying …

Peer Education On Alcohol Misuse For Fraternity Students At Lindenwood University, Ashley Herd, John Herron, Layaly Ramadan, Jenna Leong, Amy Estlund

2025 Student Academic Showcase

Alcohol misuse presents a troubling problem across all college campuses in the United States. Our project works to educate Lindenwood University male fraternity students on the dangers of alcohol misuse and the larger effect of alcohol on one’s life. Over several weeks, the peer educators researched alcohol subjects and developed content to present to the fraternity members. Content featured in these sessions included general alcohol information, the dangers of mixing alcohol with prescription drugs, safe drinking tips, how neurodivergent individuals can have different reactions to alcohol, and alcohol's role in impacting their education, career, and relationship outcomes. The sessions were …

Age–Period–Cohort Effects Of Adult Cigarette Smoking In The United States, 1971–2020, Dinko Kranjac, Ashley W. Kranjac

Sociology Faculty Articles and Research

The rates of cigarette use among American adults have dropped substantially throughout the last six decades, yet smoking remains the leading cause of preventable disease and death in the United States. It is crucial to identify the putative time-varying population-level factors of age, period, and cohort that influenced the decrease in smoking prevalence so we can maintain the downward trend. We used 49 years of data from the National Health and Nutrition Examination Survey (NHANES) and hierarchical age–period–cohort (HAPC) analysis to examine lifecycle, historical, and generational distribution of smoking among Americans aged 18–74 years old. The prevalence of smoking has …

Psychological Treatment Behind The Walls:Insights From The Inside, Rogelio Serrano

Psychology Division Scholarship

Repeated eras of mass incarceration, criminalization of marginalized communities, and substance use policies have created a revolving door of justice involved populations. The ever-increasing prison population has repeatedly become the largest contingency of mental health clientele for an overburdened mental health system. Those who work with formerly incarcerated individuals in the community often don’t know the unique set of challenges faced by practitioners within the system. Increased understanding and coordination of care can offer opportunities for sustained recovery and reduced levels of recidivism. In this presentation participants will learn about the unique insights on mental health treatment that can be …

Staying Safe When Taking Prescription Opioids, Aaron Hunt, Gabriela Murza, Amy May, Jenna Hawks, Alyssa Ferrin

All Current Publications

Prescription opioids, such as oxycodone, morphine, codeine, and hydrocodone, are often used for short-term pain management, and it is important to know how to keep yourself safe when taking opioids prescribed by a doctor. This fact sheet reviews what opioids are, how they work in the body, and how people become dependent on or overdose on opioids. It also offers how to limit your risk of dependence and suggests alternative pain management options.

Addressing Pain Management Postoperatively From A Multimodal Approach In Response To The Opioid Epidemic, Victoria Pascoe

Best Integrated Writing

This review article explores the four-wave opioid epidemic across the United States and the postsurgical multimodal pain management approaches being implemented to help combat it. Breaking down the mechanistic approach to pain in the form of opioid-alternative analgesics, cryotherapeutic techniques, cognitive approaches, and more, this paper offers insight into how pain can be managed outside of the historical approach, while also exploring the future directions of the field as physicians and researchers alike search for ways to offer more comfort and quality of life to the patients who walk through their clinic doors.

Fact Sheet For Parents: What To Know About Zyn Nicotine Pouches, Aaron Hunt, Gabriela Murza, Alyssa Ferrin

All Current Publications

This fact sheet provides information about ZYN, which is a nicotine pouch becoming commonly used among youth due to social media advertising. This fact sheet will help parents understand the impact of ZYN pouches and approaches to monitor, prevent, and address use among youth.

Naloxone: A Lifesaving Tool Against Opioid Overdose, Aaron Hunt, Gabriela Murza, Amy May, Jenna Hawks, Alyssa Ferrin

All Current Publications

Naloxone is a medicine that can temporarily stop an opioid overdose by blocking the effects of opioids on the brain, which can save a person's life. This fact sheet explains why naloxone is important and safe, how to recognize the signs of opioid overdose, and how to obtain, store, and administer naloxone. Naloxone training is also available through Utah State University Extension.

Hdac5 Enzymatic Activity Regulates Scn4b Expression To Control Relapse-Like Cocaine Seeking, Daniel J. Wood

MUSC Theses and Dissertations

Substance Use Disorder (SUD) is a relapsing disorder characterized by repeated seeking and use of psychoactive substances despite negative consequences to the individual. Epigenetic changes within the medium spiny neurons (MSNs) of the nucleus accumbens (NAc) are thought to underly the lasting propensity to relapse in SUD. The epigenetic enzyme histone deacetylase 5 (HDAC5) in NAc MSNs limits the formation of reward-cue associations in rodent models of drug seeking, but not sucrose seeking, leading to decreased relapse-like behavior. However, whether HDAC5 reduces drug seeking behavior through its own deacetylase activity or through the recruitment of co-repressors is unknown. Furthermore, these …

Substance Abuse On Vulnerable United States And Russian Populations, Avery Wuollet, Emyli Sandrock, Mallory Loerts, Rylyn Murphy

INSPIRE Student Research and Engagement Conference

The National Institute of Health states that 39.5 million people in the world are affected by drug abuse. According to the National Institute of Health, a total of 18,013 overdose deaths in Russia, while nearly 108,000 people have overdosed in the United States as of 2024, according to The National Institute of Drug Abuse. This is prevalent due to poor policies, the presence of street drugs, and the stigmas surrounding this problem. This research will entail the different effects drug abuse has on both users and the community. The research will also compare the risks of engaging in drug abuse …

Evaluating Engagement In Health Care And Substance Use Disorder Services Among People Who Use Drugs, Tiffany Mckenney, Kevin Cobty, Divya Boorle, Julie Gleason-Comstock

Medical Student Research Symposium

An urban community-based organization conducted a study to examine demographics of individuals who use drugs and their approaches to risk reduction. A substantial proportion reported encountering significant barriers to accessing substance use disorder (SUD) services.

In collaboration with a state survey, the community organization recruited a convenience sample of individuals who actively used drugs, examining substance use patterns, healthcare access, and barriers to SUD services. Community health workers facilitated outreach efforts, focusing on harm reduction engagement, and healthcare access.

Data were collected from 55 individuals. 51% identified as male, 48% as female, and 2% as LGBTQIA+. 67% identified as White/Caucasian, …

The Impact Of Legislation And Implementation Of An Emergency Department Medications For Opioid Use Disorder Program On Buprenorphine Administration, Jacob Manteuffel, Joseph Miller, Nadine Jawad, Alexis Maroney, Revelle Gappy, Nora Sharba, Grant Zydeck

Medical Student Research Symposium

The emergency department (ED) plays a critical role in addressing a wide range of healthcare needs and can be the first point of contact for individuals with opioid use disorder (OUD). Buprenorphine, a partial opioid agonist, is a medication that helps treat OUD. On January 12, 2023, federal changes removed a major barrier, allowing all clinicians to prescribe buprenorphine. Later in 2023, a Medications for Opioid Use Disorder (MOUD) program was implemented in a high-volume free-standing ED. We aimed to review the impact of these changes on buprenorphine administration.

We conducted a retrospective chart review of buprenorphine administration and ICD …