Funded Projects

Justice-involved young adults are one of the highest-risk populations for the development of opioid use disorder (OUD) and other significant public health problems, but they usually lack access to evidence-based practices that could potentially prevent this trajectory. The risk of unintentional death and other deleterious outcomes and long-term costs for opioid misuse for young adults, their communities and society (costs estimated at more than $115 billion annually) make this a priority, with rural areas in need of the most attention and assistance. The overriding purpose of the proposed pilot study is to prevent the onset of OUD by improving young adult offenders’ access to evidence-based risk reduction interventions, like contingency management (CM), by testing whether officers in the adult probation and parole setting can deliver such an intervention to their young adult substance using probationers who have not yet developed OUD. The primary motivation for this pilot is the clear public health need for improving and expanding delivery of substance use risk reduction interventions for young adults in the justice system. The ultimate outcome would be prevention of OUD in this high-risk population.

Social determinants of health are individual and environmental factors that affect health, the ability to function, and quality of life. This project will study the impact of the family-focused Families Actively Improving Relationships (FAIR) prevention intervention currently offered in rural Oregon counties to parents experiencing substance use and mental health challenges. Through the FAIR program, participants receive substance use treatment services; mental health treatment services; parent management training; and support to access employment, housing, education or to mitigate exposure to violence and discrimination. This research will examine how the FAIR intervention affects substance use and societal determinants of health, toward informing payors and decision makers about the cost and value of FAIR prevention services in rural communities.

Neuropathic pain is a debilitating affliction present in 26% of diabetic patients, with substantial impact on the quality of life. Despite this significant impact and prevalence, current therapies for painful diabetic neuropathy (PDN) are only partially effective, and the molecular mechanisms underlying neuropathic pain in diabetes are not well understood. Our long-term goal is to elucidate the molecular mechanisms responsible for PDN in order to provide targets for the development of therapeutic agents. Our objective is to identify the molecular cascade linking CXCR4/SDF-1 chemokine signaling to DRG nociceptor hyper-excitability, neuropathic pain, and small fiber degeneration. Our aims will determine: 1) the ion-channel current profile of the nociceptor hyper-excitable state produced by CXCR4/SDF-1 signaling in PDN; 2) the gene expression profile of the nociceptor hyper-excitable state produced by CXCR4/SDF-1 signaling in PDN; and 3) the specific features of nociceptor mitochondrial dysfunction produced by CXCR4/SDF-1 signaling in PDN.

Many individuals with opioid use disorder pass through the criminal justice system over the course of their life. Improved access to high-quality, evidence-based addiction treatment in justice settings is critical to addressing the opioid crisis. The Justice Community Opioid Innovation Network (JCOIN) is studying approaches to increase high-quality care for people with opioid misuse and opioid use disorder in justice populations. This research supports a scientist from a group underrepresented in biomedicine to expand capacity of the Mason Coordination and Translation Center that is managing logistics, stakeholder engagement, and dissemination of findings and products from the JCOIN network.

Pain in the muscles and surrounding connective tissue (myofascial pain) is a significant health concern affecting hundreds of millions of Americans.  Myofascial pain is primarily diagnosed by asking people about their amount of pain as well as through a physical examination. Both approaches are imprecise ways to diagnose the specific type of pain a patient is experiencing and what is causing it. This project aims to improve myofascial pain management and treatment by developing ways to measure changes to soft tissues (e.g., muscle, connective tissues, nerves, blood vessels) in people with myofascial pain compared with soft tissues in people who are not in pain. The project will develop an imaging biomarker that can distinguish healthy and diseased soft tissues that may contribute to myofascial pain syndrome. The project will then test the ability of these biomarkers to predict patient outcomes in a randomized controlled clinical trial.

This project will develop and refine a wearable device (forearm bracelet) designed to rapidly sense and report the presence of opioids in the wearer. This research will optimize this device to provide ultra-high sensitivity, enhanced drug specificity, long-term durability, low power consumption, and cost-effective production. The findings could support a path toward commercialization of this new device.

The project will address gaps in both risk identification and clinical management by utilizing comprehensive clinical data from a mature health information exchange containing more than 2.3 million patients across the spectrum of clinical care (hospitals, primary care, specialty care, community health centers, urgent care) to develop a statistically robust method to measure suicide risk associated with prescription opioid use. First, the team will couple data fusion techniques with machine learning-based approaches in identifying the clinical and demographic characteristics associated with elevated risk of suicidal behavior among prescription opioid users. Second, the team will develop clinical profiles of patients with higher risk of suicidal behavior associated with prescription opioids, and to incorporate these profiles in a clinical decision support platform that can be used for identification and intervention at the point of care. The clinical decision support tool developed under this proposal will provide a generalizable platform that could be extended to other more conventional opioid related outcomes such as OUD and overdose.

Juvenile justice (JJ)-involved youth represent a particularly vulnerable population for substance use and substance use disorders (SUDs), because they often experience mental health disorders, dysfunctional family/social relationships, and complex trauma. This study will adapt and test an intervention for preventing initiation and/or escalation of opioid misuse among older JJ-involved youth aging out of JJ (16-18 years), who are transitioning to their communities after a period of detainment in a secure treatment or correctional facility. Trust-Based Relational Intervention® (TBRI®, a relational, attachment-based intervention that promotes emotional regulation through interaction with responsive adults) will be adapted as a prevention intervention targeting youth at risk for substance use, especially non-medical use of opioids. Safe adults (e.g., parent/guardian) will be trained in behavior management techniques for empowering youth to appropriately express their needs, connecting them with others in pro-social ways, and correcting or reshaping undesirable behavior.

The HEALthy Brain and Child Development National Consortium (HBCD-NC) will establish a normative model of developmental trajectories over the first 10 years of life. All sites in the HBCD-NC will carry out a common research protocol and will assemble and distribute a comprehensive research dataset to the scientific community. The HBCD-NC will collect neural, behavioral, physiological, and psychological measures, as well as biospecimens, to characterize neurodevelopmental trajectories. Most participants will be recruited in the second trimester of pregnancy, with a smaller subset recruited at birth, and followed for the first 10 years of life. The University of Florida study site will recruit a diverse group of mother-infant pairs from urban and rural communities in North Central Florida.

This study will determine the feasibility of a multifaceted approach to recruitment of normal and high-risk pregnant women and their children. Three inter-related tasks will support this comprehensive feasibility study. First, an interdisciplinary summit will occur early in the study focused on how best to mitigate risks and maximize benefits to children and families recruited in a future cohort. Second, the feasibility of a multi-faceted recruitment strategy will be assessed. Third, select pregnancy and birth assessments will be collected from recruited participants in this feasibility study while leveraging data across early childhood from existing resources, to inform Phase II study planning. This Phase I of the FL-DECADE study will provide valuable planning and feasibility data to be used for the national efforts to build a large, prospective cohort.

Opioids have been significantly over-prescribed and are associated with numerous deaths, resulting in the nation’s current opioid crisis. The FDA recently approved the ?2 adrenergic agonist lofexidine as a non-addictive, non-opioid treatment for opioid use disorder (OUD), but there is a continued, urgent need to develop additional pharmacological alternatives to address both pain and OUD. The psychoactive, natural product, Mitragyna speciosa (kratom), has triggered significant interest in this space because Mitragynine, its main alkaloid, can interact with both mu opioid and ?2 receptors, offering a totally new approach for treating OUD. This project involves the synthesis and research of a series of Mitragynine analogs to better understand the pharmacological mechanisms that underlie Mitragynine’s opioid and adrenergic activities. If successful, this project will result in templates for the design of novel opioid receptor ligands. This advance would greatly improve the knowledge of interactions of these structurally novel compounds with opioid receptors and facilitate the development of these ligands as treatments for OUD.