Medicine and Health Sciences Commons^™

A Preliminary Timeline Of The Midbrain Development In The Monodelphis Domestica Animal Model, Ismael Perez, John L. Vandeberg, Mario Gil

Research Colloquium

Introduction: The Brazilian short-tailed opossum (Monodelphis Domestica) is an understudied animal model compared to the Mus musculus that has been identified as a perfect candidate to study neurodevelopment (Baggott, L. & Moore, H., 1990). What makes the Monodelphis Domestica a perfect specimen for neurodevelopment is that the embryo develops outside the pouch of the mother providing easy noninvasive access to track changes across different developmental stages (Mate et al., 1994).

Objective: The objective of the study is to compare the area and volume in the development of the Monodelphis’s midbrain across three different developmental stages. Our research is beneficial because …

Psychotropics Prescription In Primary Care, Ruthzaine Lopez Bolano

Research Colloquium

Background: The study aimed to measure the prevalence of psychotropic prescriptions in primary care at four UTRGV clinical sites. Based on the results, this paper serves to inform and educate primary care providers of their current practices and treatment options when diagnosing mental health disorders and prescribing psychotropics.

Methods: This study used EMR data from January to March 2021 in four primary care clinics affiliated with the UT Health RGV system. Primary care patients from January to March 2021 and who were diagnosed with mood disorders (including Depression, Anxiety, and Bipolar Disorder) were included in this quality improvement study.

Results: …

Sex Differences In Stress Reactivity, Brain Morphology, And Oxytocin In The Hypothalamus Of The Gray Short-Tailed Opossum (Monodelphis Domestica), Esperanza I. Zacarias, Daniela Rodriguez, Alexandra Chalons, Sasawan Heingraj, Nicole Altamirano, Joseph Rafac, John L. Vandeberg, Mario Gil

Research Colloquium

Understanding the effects of stress on behavior and cognition is important due to its impact on mental health and wellbeing (Schneiderman et al. 2005). Translational animal research can contribute to the development of new treatments that can improve therapeutic outcomes and our understanding of the neurobiology of stress. In the present study, we complement behavioral stress reactivity with immunohistochemical localization of oxytocin in the hypothalamus, a neuropeptide that regulates stress (Neumann & Slattery, 2016). Oxytocin has potential therapeutic use for mental health disorders (Neumann & Slattery, 2016), and the effects of oxytocin seem to be sexually dimorphic (Love, 2018). Using …

Mind, Body And Race: A Look Into How Implicit Biases Influence The Perception Of Emotion, Faiza Ahmad, Adam Anderson, James Dalton Rounds, Christina Chick, Alize Hill

Research Symposium

Background: Most research examining the effects of implicit race-based biases in emotion perception has focused on the perception of Black faces as being angry. Limited work has been done examining the perception of “approach” emotions such as fear. Furthermore, most studies have predominantly used White subjects. Our study examined the role of implicit racial biases in shaping the perception of both anger and fear in White, Black and Asian participants.

Methods: 78 participants completed a Go/NoGo task in which they were asked to categorize different race faces as portraying either anger or fear. Participants would be asked to press the …

From Bench To Bedside: Bridging The Gap Between Animal Behavior Research And The Study Of Human Personality And Psychopathology, William Reckley, Mario Gil

Research Symposium

Background: Most psychopathology focuses on the current mental picture of an individual with some including relations to the past experience. One problem with the biomedical studies of psychopathologies is the difficulty in using animals to describe and model these mental states in humans. This difficult task has been confounded by the inability to classify animals in a way that will provide general models that will allow better translation to hypotheses in humans. Therefore, the present investigation explores statistical/research strategies to organize variables using lab animals to facilitate the translation of this information to humans.

Methods: Factor analysis/PCA was used to …

A Neurodevelopmental Perspective To Improve Innovation In Preventive Treatment Of Substance Use Disorders, Ismael Perez, John Vandeberg, Mario Gil

Research Symposium

Background: Midbrain dopaminergic neurons have been associated with substance use disorders (Blaess & Ang, 2015). Understanding their neurodevelopment during early stages of life is fundamental for innovating preventive care treatments. The animal model Monodelphis domestica has been proposed as an excellent candidate to study neurodevelopmental changes due to the ease of access to see changes in their embryonic development (Mate et al., 1994). The purpose of our study is to inform how brain cells, including and especially dopaminergic neurons, mature by quantifying their number during early development. Additionally, the study aims to compare different midbrain areas and track neurodevelopmental changes …

Residential Treatment Of Substance Use Disorder And Related Comorbidities In Older Adults, Dale J. Dyben

Research Symposium

Purpose: Substance Use Disorders (SUD) are a leading contributor to health problems and premature mortality in the United States. Stigma and misconceptions about persons with SUD contribute to negative outcomes. The misconception that older adults do not suffer from severe SUD has contributed to a paucity of treatment options that meet the unique needs this population.

Description: The Center for Older Adult Recovery (COAR) at Hanley Center in West Palm Beach, Florida provides a model for residential treatment of older 65 and older with severe SUD and related medical and mental health comorbidities. Older adults who meet DSM-V diagnostic …

The Impact Of Social Isolation On The Neural Pathways Of Dopamine Neurons In The Ventral Tegmental Area (Vta) And The Nucelus Accumbens (Nac): Implications For The Treatment Of Depression, Anxiety, And Drug Addiction., Cristian M. Botello, Sasawan Heingraj, John L. Vandeberg, Mario Gil

Research Symposium

As the literature on the Monodelphis domestica continues to grow, it is important to contribute to the knowledge base regarding neural pathways and their role in social behavior in this species. Previous studies have provided evidence that increased activity in ventral tegmental area (VTA) dopamine neurons were associated with more social activity in mice. It is also known that in traditional rodent models, the Nucleus Accumbens (NAcc) is implicated in interaction reward processes like motivation; however, more research is needed to elucidate the role of the NAcc in social behavior of the M. domestica. The present study was designed …