Medicine and Health Sciences Commons^™

Beyond Weak Ties In Prison: An Investigation Of Core Support Networks Of Incarcerated Persons, Siyun Peng, Martha Tillson, Maria Rockett, Marisa Booty, Carrie B. Oser

Behavioral Science Faculty Publications

Tie formation has been a core interest of network researchers. However, most existing research on tie formation in prisons has focused on weak ties, assuming that a core network approach is less applicable within total institutions such as prisons. Drawing on egocentric network data from 389 incarcerated individuals and 1352 named network members, this study demonstrates that relationships between incarcerated persons can be examined using a core support network framework. We find that about 20 % of participants include at least one incarcerated peer in their core support networks, with these ties providing both practical and emotional support comparable to …

Decreasing Prevalence In Youth Depressive Episodes: Evidence From The 2021-2024 National Survey On Drug Use And Health, R. Andrew Yockey, Aminul Apu, Timothy Grigsby, Jacob Bleasdale, Delvon T. Mattingly, Rachel Hoopsick

Behavioral Science Faculty Publications

Background: Major depressive disorder (MDD) is a leading contributor to the global burden of disease and commonly develops during adolescence. The COVID-19 pandemic was linked to significant increases in depressive symptoms among youth, but less is known about whether these increases have continued in recent years.

Objective: Using the first four consecutive years of methodologically comparable national data since the pandemic, we examined changes in past-year major depressive episode (MDE) among U.S. adolescents aged 12–17 years from 2021 to 2024 and evaluated demographic and substance use factors.

Methods: We analyzed pooled, cross-sectional data from the 2021–2024 National Survey on Drug …

Differences In The Use Of Smokeless Tobacco, Alcohol, And Co-Use Among U.S. High-School Students: Analysis Of National Youth Risk Behavior Survey Data, Ganna Kostygina, Yoonsang Kim, Alex Kresovich, Simon Page, Shyanika W. Rose, Sherry L. Emery

Behavioral Science Faculty Publications

Introduction: This study was aimed to examine the bidirectional relationships and patterns of concurrent smokeless tobacco and alcohol use among U.S. high-school students, investigating whether demographic characteristics and behavioral factors differentially predict concurrent versus single substance use of smokeless tobacco or alcohol (referred to as either-alone use in the remaining parts of this paper).

Methods: Analysis of nationally representative Youth Risk Behavior Survey data was perfomed, combining 3 cross-sectional surveys (2019, 2021, 2023) from 39,164 students in Grades 9–12. Logistic regression examined the bidirectional smokeless tobacco–alcohol associations, whereas multinomial models compared the characteristics of concurrent users, users of smokeless tobacco …

An Exploratory Study To Determine The Feasibility And Processes Needed To Implement The Immunization Neighborhood To Increase Hpv Vaccination Among African American Adolescents And Adolescents In The General Population: A Multi-Partner Perspective, Jennifer Cunningham-Erves, Freneka Minter, Pamela C. Hull, Amanda F. Dempsey, Alexandria Demons, Mariya Chalise, Consuelo H. Wilkins

Behavioral Science Faculty Publications

Limited education and healthcare access are major contributors to Human Papillomavirus (HPV) vaccination disparities among African American adolescents. The Immunization Neighborhood (IN) involves enhanced communication and collaboration among providers to address people’s needs by expanding access points and education to increase vaccination. Because needs of immunization providers and parents to effectively collaborate are unknown, this study explored the feasibility of and processes needed for IN utilization across key partners: pediatricians, pharmacists, school nurses, health department staff, and African American parent–child dyads. We conducted a semi-structured interviews in a qualitative, descriptive study with a purposive sample of 30 African American parent–child …

Extended-Release Vs Sublingual Buprenorphine In Pregnancy Through 12 Months Post Partum: A Randomized Clinical Trial, T. John Winhusen, Michelle R. Lofwall, Frankie Kropp, Daniel Lewis, Marcela C. Smid, Jessica L. Young, Candace Hodgkins, Elizabeth E. Krans, Zachary Hansen, Elisha M. Wachman, Davida M. Schiff, Constance Guille, Vania Rudolf, Tara Chowdhury, Lawrence Leeman, Mitra Lewis, Abigail G. Matthews, Gerald Cochran, Jacquie King, Christine Wilder, Carmen Rosa

Behavioral Science Faculty Publications

Importance: Treating opioid use disorder (OUD) in pregnancy with sublingual buprenorphine is an evidence-based practice, but it has disadvantages that could be addressed with an extended-release formulation.

Objective: To evaluate the effectiveness and safety of extended-release buprenorphine vs sublingual buprenorphine for OUD in pregnancy through 12 months post partum.

Design, Setting, and Participants: This 2-group, open-label, noninferiority, randomized clinical trial was conducted between July 2, 2020, and October 30, 2024, among adults with OUD and a singleton pregnancy of 6 to 30 weeks’ gestational age at 13 outpatient cross-disciplinary peripartum OUD treatment sites.

Interventions: Randomization to sublingual or extended-release buprenorphine …

Feeding The Family—A Food Is Medicine Intervention: Preliminary Baseline Results Of Clinical Data From Caregivers And Children, Gabriela Drucker, Christa Mayfield, Elizabeth T. Anderson Steeves, Sara Maksi, Tabitha Underwood, Julie Brown, Marissa Frick, Alison Gustafson

Behavioral Science Faculty Publications

Background/Objectives: Food is Medicine (FIM) programs have been shown to be effective at addressing food and nutrition insecurity among individuals. However, more evidence is needed to determine effective interventions at the household level and their impact on child health outcomes. Feeding the Family is a randomized controlled trial which aims to determine whether the amount of food provided and the ability to select foods in FIM interventions have an incremental effect on child and caregiver clinical outcomes relative to nutrition counseling alone. The objective of this paper is to describe the population at baseline among those enrolled in Feeding the …

Frequent Police Contact And Nonfatal Overdose Among People Who Use Drugs In Rural Appalachia, Javier A. Cepeda, Talia Loeb, Zach R. Salazar, Brittney D. Williams, Brooke Hiltz, Brandon Del Pozo, Eileen V. Pitpitan, Leo Beletsky, April M. Young, Jennifer R. Havens

Behavioral Science Faculty Publications

Introduction: Police contact shapes subsequent health practices and outcomes among people who use drugs (PWUD). However, the relationship between police encounters with overdose remains under-researched. We evaluated how police stop-and-search was associated with nonfatal overdose and identified correlates of frequent police contact among PWUD in rural Kentucky.

Methods: From May 2023– April 2024, 774 PWUD were enrolled in the Social Networks of Appalachian People and KyOSK studies. The exposure of interest was self-reported police stop-and-search in the past 6 months (0, 1–3, ≥4 times). The primary outcome was self-reported nonfatal overdose in the past 6 months. We evaluated the association …

The Receipt Of Psychological Services And Acceptability Of Local Follow- Up Care For Childhood Cancer Survivors: Are There Rural Vs. Urban Differences?, Tyrone F. Borders, Abigayle Feather, Jerod L. Stapleton, John A. D’Orazio, Eric B. Durbin

Psychology Faculty Publications

Purpose This study examined rural and urban parents’ reports of their children’s receipt of general follow-up care and psychological services, ratings of the acceptability of common sources of follow-up care, and ratings of local/nearby follow-up care access and effectiveness.

Methods A cross-sectional, quantitative survey was conducted among 238 (139 urban, 46 rural adjacent, and 53 rural non-adjacent) parents of childhood cancer survivors (ages 2–17 and at least 2 years since cancer diagnosis) recruited through the Kentucky Cancer Registry. Bivariate analyses and multivariable logistic regressions adjusting for predisposing, enabling, and need factors tested for differences across residence in urban counties, rural …

A Ubiquitous Organophosphate Flame Retardant Disrupts Energy And Glucose Homeostasis In Mice, Krystal M. Sewell, Kelly Oriakhi, Sara Y. Ngo Tenlep, Megan L. Weaver, Mansura Shahad Bawa, Se-Hyung Park, Shubh Saraswat, Xiaohua D. Zhang, Robert N. Helsley, Samir Softic, Cetewayo S. Rashid

Pharmacology and Nutritional Sciences Faculty Publications

Organophosphate flame retardants (OPFRs) are used in many consumer products, and their presence in our environment raises concerns about potential health dangers. In humans, exposure to OPFRs, such as tris(1,3-dichloro-2-propyl) phosphate (TDCPP) is associated with metabolic disorders such as obesity, hyperglycemia, and insulin resistance. Our current study seeks to determine how TDCPP exposure affects body composition, glucose homeostasis, and energy balance in a rodent model. C57Bl/6 J mice were divided into two weight-matched groups and fed purified low phytoestrogen diets containing either 0.1 % DMSO (control) or TDCPP 415 mg/kg resulting in an approximate exposure of 50 mg/kg/day. Both male …

Contribution Of Metabolism-Independent Glucose Sensing To Metabolic Homeostasis, Nadia Rashid, Kavaljit H. Chhabra

Pharmacology and Nutritional Sciences Faculty Publications

Glucose sensing and signaling are central to cellular metabolic machinery for the regulation of metabolic homeostasis. Glucose sensing has been almost always assumed to be coupled with glucose metabolism; however, recent findings have unraveled metabolism-independent sensing mechanisms. Here, we discuss whether glucose transporters (GLUTs) and sodium-glucose co-transporters (SGLTs) may also function as glucose sensors independent of their roles in transporting glucose. Moreover, we review the emerging roles of G protein-coupled receptors (GPCRs) in sensing glucose and, consequently, initiating its signaling pathways in a cell-specific manner. Altogether, this review offers insights into the newly identified glucose sensing mechanisms and highlights the …

Anatomical Atlas Of Kinase Responsiveness To Weight Gain: Adipose Depot Reprogramming In Diet-Induced Adiposity, Wang-Hsin Lee, Zachary A. Kipp, Sally N. Pauss, Genesee J. Martinez, Mei Xu, Terry D. Hinds, Jr.

Pharmacology and Nutritional Sciences Faculty Publications

Background/Objectives: Adipose tissue depots located at different anatomical sites exert differential functions in response to adiposity and glucose intolerance. These fat depots exhibit distinct metabolic signaling patterns that may influence pathological fat accumulation, thereby affecting the efficacy of anti-obesity interventions. Nonetheless, the mechanisms underpinning depot-specific signaling and pathway responsiveness remain insufficiently understood.

Methods: Kinase activity was characterized during the progression of adiposity across five adipose tissue depots in obese versus lean mice using the advanced PamGene kinome technology. Furthermore, kinase pathways in human preadipocytes and mouse 3T3-L1 preadipocytes were analyzed and compared with those in their differentiated, mature adipocytes. The …

Social Engagement Moderates The Relationship Between Cognitive Functioning, Depressive Symptoms, And Restless Sleep In Older Black Adults, Sunkanmi Folorunsho, Olufunmilola Abraham, Darlingtina K. Esiaka

Pharmacy Practice and Science Faculty Publications

INTRODUCTION: Older Black adults face higher dementia risk, but it is unclear whether social engagement offsets the effects of depression and restless sleep.

METHODS: We analyzed 1,905 Black adults aged 50+ from the 2016-2020 Health and Retirement Study (HRS). Linear mixed-effects models tested how depressive symptoms, restless sleep, and social engagement predicted baseline cognition and cognitive decline.

RESULTS: Higher depressive symptoms and restless sleep were associated with lower baseline cognition (about 0.2 and 0.5 points lower) and faster decline (β×time ≈ −0.07 and −0.05). Greater social engagement predicted higher baseline cognition (about 0.6 points higher) and slower decline (β×time ≈ …

A Deimplementation Framework For Curricular Hoarding In Pharmacy Education, Mary E. Fredrickson, Ashleigh Barrickman, Krista L. Donohoe, Angela L. Goodhart, Caroline Lindsay Ko, Daniel R. Malcom, Frank Romanelli, Marissa C. Salvo

Pharmacy Practice and Science Faculty Publications

Objective: To propose a holistic approach to managing curricular transformation that addresses various curricular obligations, incorporates the emotional component of curricular overload, and utilizes deimplementation science to reframe curricular change decisions. Findings: Given the need to codify processes and interventions that continually seek to ensure curricula are modernized, contemporary, and free of outdated teaching materials, we have developed a systematic deimplementation approach to address curricular overload. Its intent is to free space for more impactful learning and practices within pharmacy curricula that can lead to measurable improvements in workload, satisfaction, and learning outcomes for both students and faculty. Summary: By …

Behavioral And Transcriptomic Markers Of Susceptibility To Escalate Fentanyl Intake, Jack V. Keady, Richard Charnigo, Jakob D. Shaykin, Emily Prantzalos, Mengfan Xia, Emily D. Denehy, Cody Bumgardner, Justin Miller, Pavel I. Ortinski, Michael Thomas Bardo, Jill R. Turner

Pharmacy Practice and Science Faculty Publications

The “loss of control” over drug consumption, known as escalation of intake in opioid use disorder (OUD), is well-established in preclinical rodent models. However, little is known about how antecedent behavioral characteristics, such as valuation of hedonic reinforcers prior to drug use, influence fentanyl intake trajectories. Moreover, it is unclear if distinct escalation phenotypes are driven by transcriptomic markers predictive of OUD susceptibility. Male and female Sprague-Dawley rats (n = 72) were trained in a sucrose reinforcement task using a progressive ratio schedule. Individual differences in responsivity to sucrose were hypothesized to predict escalation of fentanyl intake. Rats underwent daily …

Comparative Evaluation Of R134a And Hfo‐1234ze Cryogen Spray Cooling Using A Mouse Model With Controllable Epidermal Pigmentation, Wangcun Jia, Yurie Jeong, Crystal Huynh, Oswald Lai, Emily Nguyen, Grant Swajian, Jade Niu, Ayana Kashikar, Joshua Khaw, Hong Pu, Bernard Choi, John August D'Orazio, J. Stuart Nelson, Bahman Anvari

Pediatrics Faculty Publications

Objectives: Cryogen spray cooling (CSC) is critical for protecting the epidermis during laser dermatologic procedures. The widely used cryogen, R134a, has a high global warming potential (GWP), motivating interest in environmentally favorable alternatives such as HFO-1234ze. This study evaluated whether HFO-1234ze provides epidermal protection comparable to R134a during laser exposure and investigated the mechanistic basis underlying any differences in cooling performance.

Methods: Laser-induced epidermal injury in conjunction with two cryogens was assessed in K14-SCF Mc1r^e/e mice with pharmacologically controllable interfollicular epidermal pigmentation. Laser treatment sites were assigned fluences relative to baseline skin lightness (L*) to span subthreshold …

Metabolomics Driven Discovery Of Bioactive Natural Products Leads From Marine And Terrestrial Sources For The Development Of Analgesics, Sahar Mofidi Tabatabaei

University of Kentucky Doctoral Dissertations

Natural products remain a rich source of structurally diverse bioactive compounds for drug discovery, particularly for pain therapeutics. However, the chemical complexity of natural product extracts presents significant challenges for the efficient identification and prioritization of bioactive metabolites. This dissertation integrates untargeted LC-MS/MS-based metabolomics, molecular networking, classical natural products chemistry, and neurobiological assays to accelerate the discovery of analgesic lead compounds targeting the emerging pain-associated receptor σ₂R/TMEM97.

An untargeted metabolomics workflow was developed to systematically profile complex biological extracts and guide bioactive compound isolation. High-resolution LC-MS/MS data were analyzed using molecular networking (GNPS/GNPS2) to visualize chemical space, dereplicate known metabolites, …

Hardin Health Link: A Community-Integrated Paramedicine (Cip) Program In Hardin County, Kentucky, Samantha Jones

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Rural and mixed rural–urban communities face persistent disparities in access to timely emergency medical services (EMS), contributing to preventable morbidity and mortality from time-sensitive conditions such as cardiovascular disease, stroke, and injury. Hardin County, Kentucky, reflects these challenges due to its geographically dispersed population, high burden of chronic disease, and variability in EMS response times. This capstone proposes Hardin Health Link, a Community-Integrated Paramedicine (CIP) program designed to expand the traditional role of EMS providers through in-home health assessments, chronic disease monitoring, post-discharge follow-up, medication reconciliation, and connection to clinical and social services.

Guided by an evidence-informed framework, the program …

Stronger Starts: Advancing Maternal And Infant Health In Breathitt County, Kentucky, Madisyn Smith

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Maternal and infant health outcomes remain significantly poorer in rural Appalachian communities, where structural and socioeconomic barriers limit access to timely and comprehensive care. Kentucky reports elevated rates of preterm birth and infant mortality, with counties such as Breathitt County facing challenges including limited obstetric services, transportation barriers, and high poverty rates. These factors contribute to delayed prenatal care, fragmented services, and increased risk of adverse outcomes.

The Stronger Starts Initiative is an evidence-informed public health program designed to improve maternal and infant health outcomes through a coordinated, multi-level approach. The program integrates nurse-led home visiting, telehealth obstetric consultations, community-based …

Rapid Response To Recovery: Expand Integrated, Technology-Enabled Crisis Care, Madison Chandler

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Behavioral health challenges in rural communities continue to place significant strain on healthcare systems, particularly through repeated reliance on emergency departments for crisis care. Nelson County, Kentucky, reflects this pattern, with higher reported rates of poor mental health and limited access to behavioral health providers. This paper proposes the Beacon Behavioral Health Response Program, a community-based, multidisciplinary crisis intervention model designed to improve access to timely care and strengthen continuity of support. The program combines mobile crisis response—delivered by a licensed clinical social worker and a peer support specialist—with a technology-enabled component using the Luma AI-supported mental health platform. Together, …

Promoting Maternal And Infant Health In Franklin County, Ky: A Community-Based Physical Activity And Education Intervention, Subin Kim

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Maternal and infant health outcomes are key indicators of population health, yet persistent disparities exist in rural communities across the United States. In Kentucky, Franklin County reflects this pattern, with concerning maternal and infant health indicators despite relatively favorable socioeconomic conditions. Identified challenges include elevated rates of poor physical and mental health days, high drug overdose mortality, provider shortages, and ongoing reproductive health concerns such as tobacco use during pregnancy and increased infant mortality associated with elevated maternal body mass index.

To address these gaps, a three-pronged, community-based prenatal and postpartum physical activity and education program is proposed. The program …

A Program To Increase Prenatal And Postnatal Care Access In A Rural Kentucky County, Alyssa Thomas

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Prenatal and postpartum health care access is necessary for positive pregnancy and postpartum outcomes. Many rural areas in the United States are facing maternity care deserts, where there are no obstetric services available in their county. Maternity care deserts typically have higher rates in maternal mortality, low-birth weight, and pre-term births. Fleming County, Kentucky is a small rural community with a population of about 15,000 that is a maternity care desert. To improve prenatal and postpartum care access in this county, this program will use a mobile health clinic and community health workers (CHWs). The mobile health clinic will operate …

Momentum For Healthy Births-Hardin County, Ky, Brittany R. Jackson

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Maternal and infant health disparities in Hardin County, Kentucky, reflect persistent gaps in timely access to care, particularly among rural and underserved populations. Structural barriers, including transportation limitations and unmet social needs, contribute to delayed prenatal care initiation and low postpartum follow-up, increasing the risk of adverse outcomes. This capstone project proposes the MOMentum (Maternal Outreach and Monitoring for Mothers) Program, an integrated care model designed to strengthen access, improve care coordination, and enhance continuity across the prenatal and postpartum period.

The program combines a Community Health Worker (CHW)-led navigation model with enhanced postpartum care supported by telehealth services and …

Improving Prenatal And Postpartum Care Gaps In Breathitt County, Megan Deaton

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Maternal and infant health remain a major public health issue across the United States, particularly in rural communities. Barriers such as shortages of obstetric providers, transportation challenges, and limited access to prenatal and postpartum care contribute to delayed care, low follow-up rates, and an increased risk of poor outcomes, including preterm birth and low birth weight. In response, the proposed Maternal and Infant Health Program aims to address gaps in care access through a home visiting model that provides in-home support, maternal health education, care coordination, and referrals to healthcare services, with a direct focus on Breathitt County. Expected outcomes …

Implementation Of A Reminder/Recall Messaging Program In Kentucky, Laura Schwarz

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Childhood vaccination remains a critical public health priority, yet measles, mumps, and rubella (MMR) vaccination rates in several rural Kentucky counties fall below the 95% threshold required for herd immunity. Recent declines in coverage, compounded by socioeconomic disparities and barriers to healthcare access, place children at increased risk for vaccine-preventable diseases and outbreaks. This capstone project proposes the implementation of an evidence-based reminder/recall (R/R) text messaging intervention utilizing the Kentucky Immunization Registry (KYIR) to improve timely MMR vaccination among children aged 4–6 years before kindergarten entry.

The proposed program targets thirteen Kentucky counties with vaccination rates below 70% and documented …

Strengthening Rural Mental Health Crisis Response: Integrating Broadband Telehealth Care Across Counties Served By Kentucky River District Health Department, Mary K. Mcnabb

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Rural communities in Eastern Kentucky face persistent barriers to timely and effective mental health crisis care, including provider shortages, transportation challenges, and limited broadband infrastructure. Counties served by the Kentucky River Health Department Wolfe, Lee, Owsley, Perry, Knott, Leslie, and Letcher experience disproportionately high behavioral health needs while relying on shared regional resources. The Broadband-Enabled Rural Crisis Stabilization Initiative (BERCSI) is a proposed public health program designed to strengthen rural mental health crisis response through integrated, technology-enabled care. Grounded in evidence-based practices, including tele-mental health and crisis stabilization models, BERCSI leverages broadband expansion to facilitate rapid assessment, coordinated care, and …

Disrupted Circadian Rhythms Affect Hallmark Pathologies In Alzheimer’S Disease-Related Mouse Models, Valeria Buzinova

Theses and Dissertations--Molecular and Cellular Biochemistry

Alzheimer’s Disease (AD) is a complex neurodegenerative disease with two hallmark pathologies: extracellular amyloid-b (Ab) and intracellular neurofibrillary tangles (NFTs). Ab is proteolytically processed from amyloid precursor protein (APP) by b-secretase and g-secretase as a monomeric peptide prone to aggregation. Eventually, the aggregate-prone monomers will form dense plaques that are difficult to break down and remove. These plaques begin to deposit into the cortex decades prior to the formation of NFTs and the onset of cognitive decline. NFTs are comprised of hyper-phosphorylated tau. Tau is a protein that serves to promote and stabilize the formation of microtubules. The formation of …

Colon Cancer In Appalachian Kentucky: Unique Genetic, Microbiome And Obesity Findings In A Cohort Comparison, Zeta Chow, Jinpeng Liu, Daheng He, Chi Wang, Tong Gan, Akila Mansour, Nuha Shaker, Caroline Dravillas, Rebecca Hoyd, Eric B. Durbin, Dana L. Napier, Tianyan Gao, Kurt Schaberg, Lyen Huang, Neli Ulrich, Erin Siegel, Stephen Edge, Linda Cook, Bodour Salhia, Michelle L. Churchman, Jill Kolesar, Daniel Spakowicz, B. Mark Evers, Therese J. Bocklage

Markey Cancer Center Faculty Publications

We investigated colon cancer genomics and microenvironmental features in the Appalachian Kentucky population, a group with the highest incidence of colon cancer in the United States. We assessed two inter-related risk factors for colon cancer (obesity and abnormal gut bacterial microbiome) and their genetic associations within this population. To evaluate potential unique characteristics of the high-incidence cohort, we compared 99 propensity-matched colon cancer tumors from Appalachian Kentucky patients to 95 non-Appalachian patient tumors to evaluate driver mutations, differentially expressed genes (DEGs), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, Catalogue of Somatic Mutations in Cancer (COSMIC) mutational signatures, immune cell …

Hexavalent Chromium Promotes Malignant Transformation Via Enhanced Translation Of Suv39h1, Yiwei Gu, Yanan Cao, Qing Ye, Yujing Zhang, Zhishan Wang, Chengfeng Yang, Side Liu, Qing-Bai She

Markey Cancer Center Faculty Publications

Hexavalent chromium [Cr(VI)] is a widespread environmental carcinogen linked to lung cancer and other malignancies. Although genetic and epigenetic mechanisms of Cr(VI)-induced carcinogenesis have been extensively investigated, the role of translational control has remained largely unexplored. Here, we show that chronic low-dose Cr(VI) exposure in BEAS-2BR human bronchial epithelial cells activates eIF4E-driven cap-dependent translation through mTORC1-mediated phosphorylation and inactivation of the translational repressor 4E-BP1. Pharmacological inhibition of this pathway markedly suppresses Cr(VI)-induced cell transformation, cancer stem cell (CSC)-like properties, and DNA damage. Comparable inhibitory effects are observed following raptor knockdown, which disrupts mTORC1, or expression of a constitutively active non-phosphorylatable …

Rna-Micelles As Self-Assembling Structures For Efficient Co-Delivery Of Synergistic Sirna And Nucleoside Analogues To Treat Crc Lung Metastasis, Kai Jin, Piotr G. Rychahou, Daniel W. Binzel, B. Mark Evers, Peixuan Guo

Markey Cancer Center Faculty Publications

SiRNA has been widely studied in cancer gene silencing over the last 25 years. However, few siRNA-based therapeutics have been approved by the FDA. An RNA-micelle platform provides a powerful therapeutic tool through simple one-step, high-yield production that is capable of efficient colorectal cancer lung metastasis treatment, a current lethal condition with a short survival rate post-diagnosis. Here, it is reported that the use of RNA-micelles co-carrying siRNA and nucleoside analogues to completely inhibit lung metastasis of colorectal cancer (CRC). The major advantage of the RNA-micelle is the successful co-delivery of siRNA and chemotherapeutic agent in a single delivery vehicle …

Geographic Clusters Of Human Papillomavirus-Associated Cancer Incidence In The Us, 2008–2022, Todd Burus, Krystle A. Lang Kuhs, Ashish A. Deshmukh, Haluk Damgacioglu

Markey Cancer Center Faculty Publications

Objective: Despite known state and regional differences, United States (US) county-level patterns of human papillomavirus (HPV)-associated cancer incidence remain unexplored. Methods: In this cross-sectional study, we analyzed US county-level HPV-associated cancer incidence rates from 2008 to 2022 using the US Cancer Statistics Incidence Analytic Database to identify geographic clusters of high and low incidence. Clusters were identified using the Getis-Ord Gi* statistic and assessed for differences in cluster-level sociodemographic characteristics and sex-and-site-specific incidence. Results: We found 373 hot spot and 409 cold spot counties, with median incidence rates of 16.14 and 10.62 per 100,000, respectively. Hot spot counties were particularly …