Digital Commons Network^™

Primary Cilia Regulate Glp-1 Signaling In Pancreatic Β Cells, Isabella Melena, Jeong Hun Jo, Shannon E Townsend, Samantha Adamson Digruccio, Xinhang Dong, Lifei Zhu, Jonathan Campbell, Jing W Hughes

2020-Current year OA Pubs

Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are mainstay therapies for diabetes and obesity, acting in part by enhancing glucose-dependent insulin secretion. While the primary cilium is a known signaling compartment for certain G-protein coupled receptors (GPCRs), its role in the β-cell response to incretins remains undefined. Here, we show that primary cilia are essential for full GLP-1R signaling. Loss of β-cell cilia in mouse and human islets severely impaired GLP-1-potentiated insulin secretion, an effect preceded by blunted whole-cell cAMP and Ca

Adaptive Evolution Of Gene Regulatory Networks In Mammalian Neocortex, Zhuo Li, Linda J Richards, Et Al.

2020-Current year OA Pubs

Mammals have evolved a more complex brain, exemplified by the transformation of the single-layer dorsal cortex of excitatory projection neurons (ExNs) in ancestors into a multilayered cerebral neocortex

A High-Throughput Assay For Monitoring And Quantifying Amyloid-Β Accumulation And Clearance In Alzheimer's Disease Cell Models, Ajish Ariyath, Fraulein Denise Arigo, Anna Fyfe, W. M.A.D.Binosha Fernando, Ralph Martins, Prashant Bharadwaj

Research outputs 2022 to 2026

Amyloidogenic proteins, such as amyloid-β (Aβ), self-assemble into cross-β fibrils whose accumulation is central to Alzheimer's disease (AD). Measuring Aβ aggregation and clearance in living cells remains challenging using current cell-based assays, which are often low-throughput or not suited for real-time monitoring. This study aimed to (1) develop a robust, quantitative, and scalable fluorescence-based assay using Amytracker to monitor Aβ accumulation and clearance in an Aβ-producing neuronal cell model, and (2) validate its utility for mechanistic studies and therapeutic screening. We established a plate-based fluorescence assay using Amytracker in MC65 neuronal AD model expressing the Amyloid precursor protein C-terminal fragment …

Diacylglycerol Kinase Eta As A Novel Target In Nras Mutant Melanoma, Haley P. Wilson, Casey D. Stefanski, Signe Caksa, Glenn L. Mersky, Scott D. Varney, Jelan I. Haj, Dan A. Erkes, Timothy J. Purwin, Vivian Chua, Andrew E. Aplin

Research outputs 2022 to 2026

NRAS mutations occur in 10%–30% of cutaneous melanomas and are associated with high tumor mutational burden. Mutant NRAS signaling drives aberrant cell growth and proliferation, in part, through activation of the RAF–MEK-ERK1/2 kinase pathway; however, targeted therapies to this pathway have limited effectiveness in patients with NRAS mutant melanoma. The role of other targetable signaling pathways in NRAS mutant melanoma is poorly characterized. Here, we demonstrated that one isoform of diacylglycerol kinase, diacylglycerol kinase eta (DGKη), a lipid signaling regulator, was highly expressed in NRAS mutant melanoma patient samples. Knockdown of DGKH in NRAS mutant melanoma cell lines resulted in …

Current Landscape Of Mental Health Conversational Agents From A Trauma-Informed Care Lens: Scoping Review., Faye Kollig, Kira Voelker, Emily Ryan, Rachel Pfafman, Fayika Farhat Nova

Health Services and Informatics Research

BACKGROUND: Conversational agents (CAs) are increasingly used in mental health care to enhance access and engagement. However, their safe, ethical, and user-sensitive design remains a challenge. Despite growing attention to trauma-informed approaches in human-computer interaction, there is limited work on how the trauma-informed care (TIC) framework could be applied in the design of mental health CAs and no comprehensive synthesis to date.

OBJECTIVE: Guided by the Substance Abuse and Mental Health Services Administration's TIC framework, this scoping review explored how TIC principles (safety; trustworthiness and transparency; collaboration and mutuality; empowerment, voice, and choice; peer support; and cultural, historical, and gender …

Vo: The Vaccine Ontology, Jie Zheng, Asiyah Yu Lin, Anthony Huffman, Anna Maria Masci, Rebecca Racz, Guanming Wu, Kallan Roan, Edison Ong, Sirarat Sarntivijai, Joy Hu, Eliyas Asfaw, Hayleigh Kahn, Xingxian Li, Xumeng Zhang, Joshua Monickaraj, Nilufer Kosar, Jianfu Li, Warren Manuel, Rashmie Abeysinghe, Hasin Rehana, Benu Bansal, Yuanyi Pan, Jinjing Guo, Virginia He, Justin Song, Andrey I Seleznev, Katelyn Hur, Anna He, Alexander Davydov, Qi Yang, Anna Ostropolets, Randi Vita, Bjoern Peters, Alan Ruttenberg, Alexander D Diehl, Charles Tapley Hoyt, Paola Roncaglia, Rachael P Huntley, Richard H Scheuermann, Melanie Courtot, Thomas Todd, Samantha Sayers, Fang Chen, Xinna Li, Feng-Yu Yeh, Zuoshuang Xiang, Arzucan Ozgur, Patricia L Whetzel, Mark A Musen, Christopher J Mungall, Wolfgang W Leitner, Licong Cui, Lesley A Colby, Harry L T Mobley, Brian D Athey, Gilbert S Omenn, Lindsay G Cowell, Cui Tao, Junguk Hur, Barry Smith, Yongqun He

Faculty, Staff and Student Publications

Vaccines are widely used in both research and clinical settings. To facilitate FAIR data practices, we urgently need to standardize vaccine representation, integrate information across diverse vaccine types, and support computer-assisted reasoning. Accordingly, we have since 2007 developed the community-based Vaccine Ontology (VO), which aligns with the Basic Formal Ontology and adheres to OBO Foundry principles. VO ontologically models vaccines, vaccine components, vaccine immune responses, vaccine investigation studies and other vaccine-related topics. VO represents more than 10,000 vaccines targeting 289 infectious pathogens and cancers in humans and over 30 nonhuman animal species. VO provides mappings to external resources such as …

Knowledge Gaps In High-Energy Sacral Fracture Treatment And Management, Ashraf N. El Naga, Marko H. Neva, Ahmed Abdelazim Hassan, Gregory D. Schroeder, Mohammad El-Sharkawi, Sebastian F. Bigdon, Andrei F. Joaquim, Klaus Schnake, Richard Bransford, Emre Yilmaz

Rothman Institute Papers

High-energy sacral fractures (HESF) are often challenging injuries due to the location of the sacrum at the junction of the spine and pelvis, the complex biomechanics of the pelvic ring and the wide spectrum of injury patterns, which make treatment standardization challenging. Despite advances in classification systems - particularly the AOSpine Sacral Injury Classification - significant gaps remain in understanding optimal management. To review and discuss the management and identify knowledge gaps related to HESF. A narrative review of the literature was conducted, focusing on five domains: 1. Relative instability and biomechanics affected in different injury patterns; 2. The significance …

Quantitative Fluorescence Imaging Using A Paired Agent Approach For Improving Surgical Decision Making, Sanjana Pannem

Dartmouth College Ph.D Dissertations

Surgical resection remains to be the cornerstone of treatment for most solid tumors, where the primary objective is to remove all visible and microscopic disease. However, the extent of tumor resection is inherently limited by the surgeon’s ability to distinguish tumor from normal tissue, intraoperatively. As a result, positive surgical margins (PSM), where residual tumor remains after surgery, are a common occurrence and are associated with increased recurrence, need for adjuvant therapies, dismal patient outcomes, and high healthcare costs.

Fluorescence guided surgery (FGS) has emerged as a promising technique to enhance intraoperative visualization of tumors and may help reduce the …

The Role Of The Ventral Tegmental Area In Reward And Addiction: A Comprehensive Review, Emad Ali Albadawi

Neurosciences

The ventral tegmental area (VTA) is a central hub in reward and motivation, integrating heterogeneous neuronal populations and projection-defined circuits to regulate learning, decision-making, and addiction. This review synthesizes anatomical organization and cellular diversity (dopaminergic, GABAergic, and glutamatergic neurons, including multitransmitter co-release), and maps major efferent pathways constituting the mesolimbic and mesocortical systems. We highlight computational roles of VTA activity, including reward prediction errors, incentive salience, and context memory integration, and summarize drug class-specific mechanisms that perturb VTA output. We then outline time-dependent neuroadaptations across mesocorticolimbic networks and discuss therapeutic implications spanning pharmacological, behavioral, and emerging circuit-targeted interventions. Together, these …

Neuroinflammation At The Crossroads Of Neurodegeneration: The Roles Of Microglia And Astrocytes In Parkinson's Disease, Alzheimer's Disease, And Multiple Sclerosis, Mohannad A. Almikhlafi

Neurosciences

Neuroinflammation plays a critical role in the pathogenesis of neurodegenerative disorders such as Parkinson's disease, Alzheimer's disease, and multiple sclerosis. This review explores the underlying mechanisms of neuroinflammation, with a focus on the roles of microglia, astrocytes, peripheral immune cell infiltration, and cytokine release. The complex interplay between oxidative stress and chronic inflammation accelerates neurodegeneration, contributing to disease progression. Microglial activation, initially protective, becomes harmful when sustained over time, driving chronic inflammation. Similarly, astrocytes once considered passive are now recognized for their active involvement in both inflammatory and neuroprotective responses, depending on their activation state. Prolonged activation of microglia and …

Time And Dose Dependent Effects Of Adipose-Derived Stromal Vascular Fraction Exosomes On Human Dental Pulp Stem Cell Proliferation, Sylva Dinie Alinda, Anggraini Margono, Indah Julianto, Dini Asrianti Bagio

Journal of Dentistry Indonesia

Background: Cell proliferation is essential for tissue repair and immunomodulation in regenerative dentistry. Adipose-derived stromal vascular fraction (AD-SVF) is a promising autologous source for tissue engineering. Its exosomes (AD-SVF Exo), as cell-free products stable under ischemic conditions, represent an ethical and attractive modality for dental tissue regeneration and broader regenerative applications. Prior study indicates that AD-SVF Exo can enhance human dental pulp stem cell (hDPSC) migration and proliferation, particularly at low concentrations, but their detailed time- and dose-dependent proliferative effects remain unclear. This study aimed to investigate the time- and dose-dependent effects of low-concentration AD-SVF Exo on hDPSC proliferation …

Antibacterial And Antibiofilm Effects Of Ziziphus Mauritiana Leaf Extract Against Staphylococcus Aureus, Wiwiek Poedjiastoeti, Irvan Septrian Syah Putra Rasad, Felicia Klarissa Tanzil, Indrayadi Gunardi, Armelia Sari Widyarman

Journal of Dentistry Indonesia

Background: Tooth extraction is a common dental procedure often complicated by postoperative infections, with Staphylococcus aureus as a key opportunistic pathogen. Rising antibiotic resistance and side effects of conventional antiseptics like chlorhexidine highlight the need for natural alternatives. This study evaluated the antibacterial and antibiofilm potential of 96% ethanol extract from Ziziphus mauritiana leaves against S. aureus.

Methods: The extract was prepared by maceration and tested in vitro using microdilution for minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against S. aureus ATCC 25923. Antibiofilm activity was assessed via crystal violet staining on mature biofilms, with …

Comparative Analysis Of The Quality Of Life Of Schizophrenic Patients On Antipsychotic Treatment Between Aripiprazole Monotherapy And Combination Of Risperidone-Clozapine At Mental Hospital In West Java, Taufiqurahman Taufiqurahman, Sani Asmi Ramdani Lestari, Ardilla Kemala Dewi

Pharmacology and Clinical Pharmacy Research

Quality of life (QoL) is a critical outcome measure in schizophrenia management, yet antipsychotic side effects may negatively impact patients' well-being. Objective: This study aimed to compare the QoL of schizophrenia patients receiving aripiprazole monotherapy versus a risperidone-clozapine combination at West Java Mental Hospital. An analytical observational study with a cross-sectional design was conducted at the outpatient clinic of West Java Mental Hospital from March to May 2025. The Indonesian version of the WHOQOL-BREF questionnaire was used to assess QoL. A total of 58 outpatients with schizophrenia who met the inclusion criteria were enrolled, comprising 28 patients in the aripiprazole …

Comparison Of Chop And R-Chop For Treatment Non-Hodgkin Lymphoma, Yogyakarta, Indonesia: A Cost-Effectiveness Analysis, Woro Supadmi, Rizky Gustinanda, Lalu M. Irham, Riat El Khair

Pharmacology and Clinical Pharmacy Research

CHOP and R-CHOP are commonly used chemotherapy regimens for Non-Hodgkin Lymphoma (NHL). While R-CHOP has demonstrated clinical benefits, its higher cost raises concerns regarding economic efficiency, particularly in middle-income countries such as Indonesia. This study aimed to compare direct medical costs and clinical outcomes of CHOP and R-CHOP regimens among NHL patients treated at a national referral hospital in yogykarta. A retrospective cohort study was conducted using medical record data of NHL patients who received CHOP or R-CHOP chemotherapy at Dr. Sardjito General Hospital Yogyakarta, between 2020 and 2023, with follow-up extended until April 30, 2025. Clinical outcomes included overall …

Hyperdynamic Microtubule-Based Structural Changes In Monocyte-Derived-Neuronal-Like Cells From Patients With Schizophrenia, Alfredo Bellon, Alonso Cortez-Resendiz, Lauren N Forrest, Omar Elmarasi, Janani Iyer, Anjali Iyer, Chachrit Khunsriraksakul, Dajiang Liu, L Elliot Hong, Therese M Jay, Marie-Odile Krebs, Anne Hosmalin

Faculty, Staff and Student Publications

A consistent postmortem finding in schizophrenia (SCZ) is reduction in dendrites' size. However, neurons with larger dendritic trees have also been encountered. In vitro experiments with neurons and neuronal-like cells coming directly from patients with SCZ showed similar results, evidencing at times more extensions and at others less arborizations. The process of extending and retracting neuronal outgrowths depends on microtubules polymerization and depolymerization. The possibility that microtubule polymerization/depolymerization is related to defects in the neuronal structure comes from several microtubular anomalies reported in SCZ such as its abnormal distribution in the cytoplasm, irregular shape of microtubules and even absence of …

Utilization Of Visual Metaphors For Improving Health Literacy, Kadir Alp Özler, Morgan Dressel, Madeline Weiner, Robert D Lucito, Alice Fornari

Patient Experience Journal

Health education is practiced in patient encounters via verbal communication and educational pamphlets. However, these techniques are faulty and do not provide true patient comprehension of their conditions and treatments reform is necessary to prevent the mortality and hospitalization rates that are linked to poor health literacy. Visual aids and metaphors are individually known to be powerful educational tools. A student organization at Stony Brook University, Artists in Medicine, has sought to synergize these tools to create visual metaphors artwork that links everyday concepts to patient illnesses to facilitate comprehension of this information. For example, one project “Aortic Dissections” depicts …

Cartoon-Printed Uniforms: A Strategy To Ease Pediatric Hospital Anxiety, Karnellya R. Ohol, Janaki P. Shinde

Patient Experience Journal

This quasi-experimental study evaluated the effectiveness of cartoon-printed nurse uniforms in reducing anxiety among hospitalized children aged 3–12 years. Conducted at a tertiary care hospital in Maharashtra, India, the study included 100 participants (50 intervention, 50 control) who received care from nurses wearing either cartoon-printed uniforms or traditional clinical attire. Anxiety was assessed at baseline and on hospital days 2, 3, and 4 using validated age-appropriate scales: the modified Faces Anxiety Scale (ages 3–6) and the STAI-C short form (ages 7–12). Mixed-effects repeated-measures ANOVA demonstrated a significant group × time interaction (F(3,294) = 42.67, p < .001, partial η² = .304). Children cared for by nurses in cartoon uniforms showed a 48.8% reduction in anxiety compared to 14.7% in controls. Between-group effect sizes increased progressively across days (d = 0.87 to 2.13), indicating cumulative benefit rather than transient novelty. Clinically meaningful improvement (≥30% reduction) was achieved by 76% of intervention participants versus 24% of controls (NNT = 1.92). Staff acceptability was high (95%). Findings indicate that cartoon-printed uniforms are a simple, low-cost, high-impact environmental intervention that significantly enhances pediatric patient experience. Their strong clinical utility, ease of implementation, and alignment with child-centered care principles support adoption across pediatric healthcare settings.

No One-Size-Fits-All: Patient Perspectives Of Key Factors Influencing Their Inpatient Rehabilitation Experience, Mirline Milien, Megan Bewernitz, Katherine Stallings, Mary Ellen Young

Patient Experience Journal

Although patient experience in healthcare settings has historically been an ambiguous concept, it has received increasing recognition as a measure of healthcare quality. Despite this growing recognition and efforts to define patient experience, few studies have explored patient perspectives on the key factors driving this quality indicator. This study aimed to explore the core elements patients view as influencing their experiences in the inpatient rehabilitation setting. This was a single-visit, cross-sectional qualitative interview study. Thirteen patients with diverse diagnoses who received at least one week of rehabilitation services were recruited from a single inpatient rehabilitation facility. Purposive sampling was employed …

Capturing Patient-Centered Quality Of Life: Usability And Initial Validation Of The Pediatric Patient-Generated Index Following Esophageal Atresia Repair, Zanib Nafees, Julia Ferreira, Elena Guadagno, Nikki Ow, Nancy Mayo, Jean-Martin Laberge, Dan Poenaru

Patient Experience Journal

The Patient-Generated Index (PGI) is an individualized measure that allows patients to define the domains most important to their quality of life (QoL). This study evaluates the usability and preliminary validity of the pediatric Patient-Generated Index (pPGI) in children who previously underwent esophageal atresia (EA) repair. We conducted a mixed-methods study including the pPGI, EuroQol-5D-Youth (EQ-5D-Y), and PROMIS Life Satisfaction Short Form-8a. Children aged 7–17 years completed self-reports, while parents served as proxies for younger children. Cognitive interviews explored how children understood and completed the pPGI, and clinician interviews assessed clinical usability. Among 25 participants, the pPGI generated 104 text …

A Comparative Study Examining The Effects Of Nifedipine And Minoxidil On Stimulating Hair Growth Using A Mouse Model, Nihad Hussein Ahmed, Rabei Abdullah Salih, Shereen M. Mekkey

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

Hair loss is a common human scalp condition caused by chemotherapy, chronic diseases, and aging. Currently, it is estimated that approximately 50% of males and 15–30% of females experience hair loss issues. Minoxidil is considered a preferred treatment for hair loss in men and women. Nifedipine is effective in improving blood circulation and blood supply via its vasodilator action. To compare nifedipine and minoxidil in terms of their effect on stimulating hair growth using a mouse model. Fifteen female albino mice, aged 8 to 10 weeks, were randomly assigned to three groups of five mice each, all with shaved dorsal …

Ethnopharmacology, Phytochemistry, And Pharmacological Potential Of Philenoptera Laxiflora: An Emerging African Medicinal Plant For Drug Discovery, Albashir Tahir

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

Medicinal plants remain an important source of therapeutic agents and play a significant role in modern drug discovery. Philenoptera laxiflora (Fabaceae) is a tropical African plant widely used in traditional medicine, but the scientific evidence supporting its therapeutic potential remains fragmented. This review aims to comprehensively summarize the current knowledge on the ethnomedicinal uses, phytochemical composition, pharmacological activities, and toxicological profile of P. laxiflora, while highlighting research gaps and future directions for drug discovery. A comprehensive literature search was conducted using electronic scientific databases, including PubMed, Google Scholar, Scopus, Web of Science, and ScienceDirect. Relevant publications on the ethnobotany, …

Preparation And In-Vitro Evaluation Of Tizanidine Flash Oral Dispersible Tablet, Ahmed Yousif Fadhel, Yousif K. Younis

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

Background: Oral administration is the most common and preferred route for drug delivery. Oral dispersible tablets (ODTs) are solid dosage forms that disintegrate into saliva without the need for water. Tizanidine is a centrally acting muscle relaxant used to manage spasticity from spinal or brain injuries. Preparing it as a flash (ODT) tablet may enhance patient compliance and potentially improve bioavailability by bypassing part of the first-pass metabolism. Methods: Six formulations of tizanidine flash tablets were developed using varying concentrations of mannitol (bulk-forming agent), glycine (to aid tablet collapse), and gelatin (matrix-forming agent). The formulations were evaluated for weight variation, …

Bioactive Constituents And Pharmacological Activities Of Curcuma Zedoaria: A Mini-Review, Abdulmutalib Allaq, Muneer M. Saleh Mohammed Saleh Alsayadi, Mustapha Salihu, Hasan M. Agha, Amena Hassan Hassan Gheeth, Fatimah Salim, Norrizah Jaafar Jaafar Sidik

AUIQ Complementary Biological System

Curcuma zedoaria Rosc. (white turmeric) is a rhizomatous medicinal plant in the Zingiberaceae family, widely used in traditional Asian medicine. In recent years, increasing scientific attention has focused on its diverse pharmacological properties and bioactive constituents. This mini review summarises current knowledge of the phytochemical composition and biological activities of C. zedoaria, with particular emphasis on its antimicrobial, antioxidant, anti-inflammatory, and anticancer effects. Phytochemical investigations using analytical techniques such as GC–MS and HPLC have revealed the presence of numerous bioactive compounds, including sesquiterpenes (example, germacrone, curzerenone, and curdione) and curcuminoids, which contribute to its therapeutic potential. Experimental studies demonstrate …

Perceptions Of Rural Large Animal Owners On Cost And Distance As Barriers To Veterinary Medicine, Alyssa Dalleske

Honors College Theses

Access to veterinary care remains a significant issue in rural communities due to financial, geographic, and access barriers. Limited access to veterinary care can have an impact on animal welfare and an economic impact for producers. This study aimed to assess factors influencing access to veterinary services, including cost, distance to clinics, perceived value of care, and availability of mobile veterinary professionals. The survey was distributed to rural large animal owners using social media, and gained 20 participants. It collected data on perceived barriers within their communities. The survey results indicated that cost of care and distance to veterinary clinics …

The Right Time For A Synapse To Change: Windows And Mechanisms Of Multiday Training Trials, Rong-Yu Liu, Yili Zhang, Roberta Calvo, Paul Smolen, John H Byrne

Faculty, Staff and Student Publications

Although learning over multiple days is more effective than a single day of training, the underlying cellular mechanisms of repeated training trials remain poorly understood. With a combination of empirical and computational approaches, we determined a critical time window for a second stimulus block of a multiday training protocol to augment long-term synaptic facilitation (LTF) of the Aplysia sensorimotor synapse and long-term enhancement of neuronal excitability (LTEE), two cellular correlates of learning and memory. A second stimulus block delivered 24 h after the first block significantly enhanced LTF and LTEE, but was without effect at 18 or 32 h. This …

A Phenomenological Study On The Lived Experiences Of Military Spouses With Secondary Traumatic Stress Who Are Married To Veterans Diagnosed With Ptsd, Trisha R. Perry

Doctoral Dissertations and Projects

The purpose of this hermeneutical phenomenological study was to understand the lived experiences of Secondary Traumatic Stress (STS) in military spouses whose partners have Post-Traumatic Stress Disorder (PTSD). The theory guiding this study was Lazarus and Folkman’s Transactional Model of Stress and Coping (TMSC). The central research question was: What are the lived experiences of STS in spouses married to a service member with PTSD? Additional sub-questions addressed changes in worldview, marital satisfaction, and daily functioning. Criterion and snowball sampling were used to select participants who were married to service members with PTSD for the study. Following the hermeneutical phenomenological …

Lateral Habenula And Dorsal Raphe Neurons Signal Value Computations In Multi-Attribute Decision-Making, Yang-Yang Feng

McKelvey School of Engineering Graduate Student Theses & Dissertations

Decision-making is a fundamental part of adaptive behavior and can be compromised in psychiatric illness. Humans and animals are continuously presented with objects and opportunities as options to decide between. One challenge is that these options may independently vary along multiple dimensions or attributes that we care about. This can include attributes of physical reward, such as amount, delay, or uncertainty. When these attributes are present, the possibility of an abstract, cognitive reward, advance information to resolve uncertainty, may also motivate our decisions. It is unclear how the brain makes these subjective decisions, trading off between these multiple attributes based …

Functional And Spatially Specialized Inhibition And Neuromodulation During Learning In The Hippocampus, Gerardo Enrique Molina

McKelvey School of Engineering Graduate Student Theses & Dissertations

The hippocampus relies on a diverse network of regulatory components for memory formation. Neuromodulators and inhibitory interneurons act in concert with excitatory neurons to control learning. Even within one of these components there is a vast diversity of genetic or chemical composition that may come from unique sources at uniquely timed intervals or events. The goal of this dissertation is to identify specific functional-behavioral attributes of two such examples: parvalbumin (PV)-expressing interneurons and the neuromodulator dopamine, in hippocampal CA1. In separate experiments, I used two-photon microscopy of the calcium sensor, GCaMP, which measures neuronal activity, and GRAB-DA, which reports levels …

The Impact Of Nutritional Education On Hemoglobin Levels In Adolescent Cross-Country Runners, Phillip L. Hardy

Doctoral Dissertations and Projects

Iron deficiency and anemia have been documented in adolescent endurance athletes, particularly female runners, due to increased physiological demands during growth and sustained training stress. However, limited research has examined seasonal hemoglobin progression in high school cross-country athletes while simultaneously examining outcomes during participation in structured nutrition education. Therefore, the purpose of this longitudinal quantitative study was to examine hemoglobin levels, dietary iron intake, and nutrition knowledge among adolescent cross-country runners across a competitive season during participation in a four-session, nutrition education program delivered from August 2025 through November 2025. Participants included 44 high school runners from northwest Georgia who …

Culturally Tailored Materials For Smoking Cessation And Hiv Care Adherence Among Hispanic Adults: Protocol For Content Development And Formative Evaluation, Lorra Garey, Jacqueline J Charles, Ashley L Ruiz, Rodrigo Castillo-Avilés, Virmarie Correa-Fernández, Marshall K Cheney, Thomas P Giordano, Michael J Zvolensky

Faculty, Staff and Students Publications

Background: Hispanic people with HIV who smoke cigarettes experience unique stressors (eg, stigma), which contribute to health disparities. Anxiety sensitivity (AS) may worsen mood management problems, which are a leading barrier to smoking cessation. Interventions targeting AS can improve HIV-specific outcomes and smoking cessation. However, no prior research has culturally tailored an AS reduction program to improve quality of life among Hispanic people with HIV who smoke. The research team previously developed a mobile health (mHealth) intervention addressing AS reduction, smoking cessation, and HIV care management for Black people with HIV who smoke. Building on this work, this study represents …