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Animal Experimentation and Research Commons™
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Articles 1 - 8 of 8
Full-Text Articles in Animal Experimentation and Research
Understanding Animal Introductions And Welfare In Zoos: A Scoping Review, Claudia C. Martinez, Valerie James-Aldridge, Todd J. Mcwhorter, Eduardo J. Fernandez
Understanding Animal Introductions And Welfare In Zoos: A Scoping Review, Claudia C. Martinez, Valerie James-Aldridge, Todd J. Mcwhorter, Eduardo J. Fernandez
Psychological Science Faculty Publications
Managing captive zoo species often requires modifying their social groups, but these changes can increase stress and aggression. Specifically, introductions of new animals to existing exhibits with established animals is commonplace, yet little has been published to systematically evaluate this process. This review used the PRISMA framework to evaluate published research on introductions of unfamiliar individuals in zoos, aquariums, and sanctuaries. Peer-reviewed studies from PubMed, Web of Science, and Scopus were screened and extracted using Covidence software. Studies were included if they provided quantitative data and before-and-after comparisons. Of 25 studies meeting criteria, most focused on primates, especially western lowland …
Impact Of Acute Stress On Circadian Rhythm Regulation Of Locomotor Activity In Syrian Hamsters, Raquel A. Villarreal, Laura E. Garcia, Mario Gil
Impact Of Acute Stress On Circadian Rhythm Regulation Of Locomotor Activity In Syrian Hamsters, Raquel A. Villarreal, Laura E. Garcia, Mario Gil
Research Symposium
Background: Disruptions of circadian rhythms, caused by factors such as environmental changes or stress, are linked to health conditions, including metabolic disorders, cardiovascular diseases, and mood disorders. Circadian rhythm disturbances are particularly relevant for understanding the etiology of conditions like insomnia, depression, and anxiety. The circadian rhythm, primarily regulated by the suprachiasmatic nuclei (SCN) in the hypothalamus, coordinates biological processes to align with daily environmental cycles. Acute stress, especially when experienced immediately upon waking, has been shown to disrupt these rhythms, impair sleep regulation, and exacerbate mood dysregulation. Given the significant clinical implications, understanding how stress impacts circadian rhythms is …
The Role Of The Female Reproductive Cycle In Social Communication And Relevance To Mental Health, Julissa Amaro Castillo, Fernando Dominguez, Ariana Hinojosa, Giselle Padilla, Mario Gil
The Role Of The Female Reproductive Cycle In Social Communication And Relevance To Mental Health, Julissa Amaro Castillo, Fernando Dominguez, Ariana Hinojosa, Giselle Padilla, Mario Gil
Research Symposium
The female reproductive cycle is characterized by fluctuating hormones, including estrogens and progesterone, that are involved in reproductive health; however, they have also been linked to disorders like Premenstrual syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), mood swings, depression and others. The goal of this study is to use the Syrian hamster (Mesocricetus auratus) as an animal model to examine the influence of the reproductive cycle and hormones on behavior. Scent-marking activity known as flank marking is exhibited by territorial or sociable animals. In essence, animals mark their territory or convey information such as reproductive status by rubbing their flanks or …
Effects Of Arginine-Vasopressin In The Brain On Cardiovascular Function In A Psychosocial Stress Animal Model, Esmeralda Lopez-Garcia, Ariana V. Hinojosa, Esperanza I. Alaniz, Fernando Dominguez, Giselle Padilla, Mario Gil
Effects Of Arginine-Vasopressin In The Brain On Cardiovascular Function In A Psychosocial Stress Animal Model, Esmeralda Lopez-Garcia, Ariana V. Hinojosa, Esperanza I. Alaniz, Fernando Dominguez, Giselle Padilla, Mario Gil
Research Symposium
Background: Psychosocial stress impacts cardiovascular health, increasing the risk of events like myocardial infarction (MI), stress cardiomyopathy, and neuropsychiatric disorders, including Major Depressive Disorder (MDD) and Anxiety. However, our understanding of the biological mechanisms that connect psychosocial stress with negative cardiovascular and psychological outcomes remains incomplete. Arginine-vasopressin (AVP) is linked to both mental and physical health by regulating social behavior, blood pressure, and anxiety-related behaviors. This study investigates the potential cardioprotective effects of the neuropeptide AVP, in an effort to generate evidence that it may strengthen heart function and lessen the severity of adverse cardiovascular events caused by stress, brain …
Investigating The Relationship Among Environmental Factors, Reproductive Status, And Stress In A Preclinical Model Of Endocrine Function In Women’S Translational Health, Bianca A. Camacho, Laura Emma Garcia, Raquel Villarreal, Mario Gil
Investigating The Relationship Among Environmental Factors, Reproductive Status, And Stress In A Preclinical Model Of Endocrine Function In Women’S Translational Health, Bianca A. Camacho, Laura Emma Garcia, Raquel Villarreal, Mario Gil
Research Symposium
Background: The average menstrual cycle of a healthy adult woman is a duration of approximately 28 days, during which in the follicular phase (first 14 days) the progesterone hormone is at a stable level while estrogen increases to its peak level on day 14. Day 14 is known as ovulation, during which progesterone increases during its Luteinizing Hormone (LH) surge while estrogen decreases. Menses, known colloquially as a woman’s “period,” begins approximately at day 14 after ovulation and lasts an average of 7 days. The luteal phase, otherwise known as the secretory phase, lasts for the remaining 14 days until …
Exploring The Effects Of Serotonin And Ssris On The Neurological, Behavioral, And Cardiovascular Systems Under Induced Stress –Using The Animal Model Of The Syrian Hamster, Ariana V. Hinojosa, Esperanza I. Alaniz, Esmeralda Lopez-Garcia, Giselle Padilla, Fernando Dominquez, Mario Gil
Exploring The Effects Of Serotonin And Ssris On The Neurological, Behavioral, And Cardiovascular Systems Under Induced Stress –Using The Animal Model Of The Syrian Hamster, Ariana V. Hinojosa, Esperanza I. Alaniz, Esmeralda Lopez-Garcia, Giselle Padilla, Fernando Dominquez, Mario Gil
Research Symposium
Background: Serotonin is a neurotransmitter that has been found to have a wide range of effects on not just the neuropsychological processes but has also been found to exert effects outside the central nervous system (CNS); regulating numerous biological processes, such as metabolism, gastrointestinal system, reproductive function, and even the cardiovascular system. However, there is still a limited understanding of how serotonin affects all these systems due to its complexity and ability to regulate homeostasis. This project aims to create a stronger foundation of knowledge about serotonin and its influence on the interaction between the CNS, behavior, and cardiac function …
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
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 …
Nectar Source Preferences Of The Hummingbird: A Field Study From South Texas, Jasmine Benavidez
Nectar Source Preferences Of The Hummingbird: A Field Study From South Texas, Jasmine Benavidez
Honors Theses
With the rise of urbanization, comes a rise in urban-like activities—most notable is birdfeeding. Given the increasing popularity of bird-feeding, especially in hummingbird feeding, concern for implications, if any, has mounted. There is reason to believe that artificial feeders can impact the surrounding environment; that is, it is possible that feeders could attract pollinators away from flowering plants, which, in turn, could bring repercussions for pollination and all associated with it. However, literature, on the matter, is rather limited. To add to this, past studies provide two opposing arguments. This study aims to explore the nectar source preferences of hummingbirds …