Medicine and Health Sciences Commons^™

Novel Isolation Method Reveals Sex-Specific Composition And Neurotoxicity Of Small Extracellular Vesicles In A Mouse Model Of Alzheimer’S Disease, Ahmed Elsherbini, Zhihui Zhu, Zainuddin Quadri, Simone M. Crivelli, Xiaojia Ren, Hemendra J. Vekaria, Priyanka Tripathi, Liping Zhang, Wenbo Zhi, Erhard Bieberich

Markey Cancer Center Faculty Publications

We developed a new method to isolate small extracellular vesicles (sEVs) from male and female wild-type and 5xFAD mouse brains to investigate the sex-specific functions of sEVs in Alzheimer’s disease (AD). A mass spectrometric analysis revealed that sEVs contained proteins critical for EV formation and Aβ. ExoView analysis showed that female mice contained more GFAP and Aβ-labeled sEVs, suggesting that a larger proportion of sEVs from the female brain is derived from astrocytes and/or more likely to bind to Aβ. Moreover, sEVs from female brains had more acid sphingomyelinase (ASM) and ceramide, an enzyme and its sphingolipid product important for …

The Kappa Opioid Receptor Agonist 16-Bromo Salvinorin A Has Anti-Cocaine Effects Without Significant Effects On Locomotion, Food Reward, Learning And Memory, Or Anxiety And Depressive-Like Behaviors, Ross Van De Wetering, Amy Ewald, Susan Welsh, Lindsay Kornberger, Samuel E. Williamson, Bryan D. Mcelroy, Eduardo R. Butelman, Thomas E. Prisinzano, Bronwyn M. Kivell

Markey Cancer Center Faculty Publications

Kappa opioid receptor (KOR) agonists have preclinical antipsychostimulant effects; however, adverse side effects have limited their therapeutic development. In this preclinical study, conducted in Sprague Dawley rats, B6-SJL mice, and non-human primates (NHPs), we evaluated the G-protein-biased analogue of salvinorin A (SalA), 16-bromo salvinorin A (16-BrSalA), for its anticocaine effects, side effects, and activation of cellular signaling pathways. 16-BrSalA dose-dependently decreased the cocaine-primed reinstatement of drug-seeking behavior in a KOR-dependent manner. It also decreased cocaine-induced hyperactivity, but had no effect on responding for cocaine on a progressive ratio schedule. Compared to SalA, 16-BrSalA had an improved side effect profile, with …

The Last Of Us In Therapy: How Mind-Controlling Fungi And Gut Bacteria Affect Your Mental Health, Anastasia Lyon

Journal of Pharmacology & Nutritional Sciences

The "psilocybiome" represents the mutually beneficial relationship between ourselves, our bacteria, and psychedelic drugs. This short review briefly discusses the benefits and limitations surrounding the potential for psychedelic therapy to synergize with gut bacteria to help regulate and maintain proper balance in the immune system, diet, and stress levels. Psychedelic therapy is a novel treatment strategy that has the potential to improve patient mental health, and, by identifying the types of gut bacteria present in patients, it can aid in personalizing medicine by determining how well their "psilocybiome" may respond.

Flood Fatalities In Eastern Kentucky And The Public Health Legacy Of Mountaintop Removal Coal Mining, W. Jay Christian, Beverly May, Jeffery E. Levy

UK CARES Faculty Publications

Heavy rains at night caused severe flooding in eastern Kentucky on 28 July 2022, resulting in 39 deaths. Using publicly available information, we assembled a database of these fatalities, including demographic characteristics and location of death. We perturbed fatality locations and plotted them on a topographical map highlighting mountaintop removal mining with valley fill sites, where mountaintops were excavated to mine thin seams of coal. This map reveals many flood fatalities occurred along rivers or streams near such sites. Previous research suggests that surface mining has contributed to the majority of land cover change in this region, and this has …

Accelerating Colorectal Cancer Screening And Follow-Up Through Implementation Science (Accsis) In Appalachia: Protocol For A Group Randomized, Delayed Intervention Trial, Electra D. Paskett, Aaron J. Kruse-Diehr, Jill M. Oliveri, Robin C. Vanderpool, Darrell M. Gray Ii, Michael L. Pennell, Bin Huang, Gregory S. Young, Darla Fickle, Mark Cromo, Mira L. Katz, Paul L. Reiter, Melinda Rogers, David A. Gross, Vickie Fairchild, Wendy Xu, Angela Carman, Jean M. Walunis, Ann Scheck Mcalearney, Timothy R. Huerta, Saurabh Rahurkar, Erika Biederman, Mark B. Dignan

UK CARES Faculty Publications

Appalachian regions of Kentucky and Ohio are hotspots for colorectal cancer (CRC) mortality in the USA. Screening reduces CRC incidence and mortality; however, screening uptake is needed, especially in these underserved geographic areas. Implementation science offers strategies to address this challenge. The aim of the current study was to conduct multi-site, transdisciplinary research to evaluate and improve CRC screening processes using implementation science strategies. The study consists of two phases (Planning and Implementation). In the Planning Phase, a multilevel assessment of 12 health centers (HC) (one HC from each of the 12 Appalachian counties) was conducted by interviewing key informants, …

Combination Therapy With Trastuzumab And Niraparib: Quantifying Early Proliferative Alterations In Her2+ Breast Cancer Models, Ameer Mansur, Patrick N. Song, Yun Lu, Andrew C. Burns, Luke Sligh, Eddy S. Yang, Anna G. Sorace

Markey Cancer Center Faculty Publications

HER2–targeted treatments have improved survival rates in HER2+ breast cancer patients, yet poor responsiveness remains a major clinical obstacle. Recently, HER2+ breast cancer cells, both resistant and responsive to HER2–targeted therapies, have demonstrated sensitivity to poly–(ADP– ribose) polymerase (PARP) inhibition, independent of DNA repair deficiencies. This study seeks to describe biological factors that precede cell viability changes in response to the combination of trastuzumab and PARP inhibition. Treatment response was evaluated in HER2+ and HER2– breast cancer cells. Further, we evaluated the utility of 3′–Deoxy–3′–[18F]–fluorothymidine positron emission tomography ([18F]FLT–PET) imaging for early response assessment in a HER2+ patient derived xenograft …

Serum Amyloid A Augments The Atherogenic Effects Of Cholesteryl Ester Transfer Protein, Ailing Ji, Andrea C. Trumbauer, Victoria P. Noffsinger, Frederick C. De Beer, Nancy R. Webb, Lisa R. Tannock, Preetha Shridas

Saha Cardiovascular Research Center Faculty Publications

Serum amyloid A (SAA) is predictive of CVD in humans and causes atherosclerosis in mice. SAA has many proatherogenic effects in vitro. However, HDL, the major carrier of SAA in the circulation, masks these effects. The remodeling of HDL by cholesteryl ester transfer protein (CETP) liberates SAA restoring its proinflammatory activity. Here, we investigated whether deficiency of SAA suppresses the previously described proatherogenic effect of CETP. ApoE¡/¡ mice and apoE¡/¡ mice deficient in the three acute-phase isoforms of SAA (SAA1.1, SAA2.1, and SAA3; “apoE¡/¡ SAA-TKO”) with and without adeno-associated virus-mediated expression of CETP were studied. There was no effect of …

Spatial Metabolomics Reveals Glycogen As An Actionable Target For Pulmonary Fibrosis, Lindsey R. Conroy, Harrison A. Clarke, Derek B. Allison, Samuel Santos Valenca, Qi Sun, Tara R. Hawkinson, Lyndsay E. A. Young, Juanita E. Ferreira, Autumn V. Hammonds, Jaclyn B. Dunne, Robert J. Mcdonald, Kimberly J. Absher, Brittany Dong, Ronald C. Bruntz, Kia H. Markussen, Jelena A. Juras, Warren J. Alilain, Jinze Liu, Matthew S. Gentry, Peggi M. Angel, Christopher M. Waters, Ramon C. Sun

Saha Cardiovascular Research Center Faculty Publications

Matrix assisted laser desorption/ionization imaging has greatly improved our understanding of spatial biology, however a robust bioinformatic pipeline for data analysis is lacking. Here, we demonstrate the application of high- dimensionality reduction/spatial clustering and histopathological annotation of matrix assisted laser desorption/ionization imaging datasets to assess tissue metabolic heterogeneity in human lung diseases. Using metabolic features identified from this pipeline, we hypothesize that metabolic channeling between glycogen and N-linked glycans is a critical metabolic process favoring pulmonary fibrosis progression. To test our hypothesis, we induced pulmonary fibrosis in two different mouse models with lysosomal glycogen utilization deficiency. Both mouse models displayed …

Artificial Intelligence In Continuous Kidney Replacement Therapy, Lucas J. Liu, Tomonori Takeuchi, Jin Chen, Javier A. Neyra

Markey Cancer Center Faculty Publications

Over the past decade, artificial intelligence (AI) through machine learning (ML) has been increasingly used in health care applications. The use of AI/ML to enhance the provision of continuous kidney replacement therapy (CKRT) is an area of active investigation because of the growing clinical needs of critically ill patients and the abundance of multimodal data from the electronic health records (EHRs) and the CKRT machine itself. Importantly, best clinical practices of CKRT have not been sufficiently standardized, so there is considerable heterogeneity in utilization and deliverables. In this context, AI/ML-based tools could facilitate informed decisions to enhance CKRT goal-oriented deliver- …

Development And Characterization Of Nanobodies That Specifically Target The Oncogenic Phosphatase Of Regenerating Liver-3 (Prl-3) And Impact Its Interaction With A Known Binding Partner, Cnnm3, Caroline N. Smith, Kyle Kihn, Zachary A. Williamson, K. Martin Chow, Louis B. Hersh, Konstantin V. Korotkov, Daniel Deredge, Jessica S. Blackburn

Markey Cancer Center Faculty Publications

Phosphatase of Regenerating Liver-3 (PRL-3) is associated with cancer progression and metastasis. The mechanisms that drive PRL-3’s oncogenic functions are not well under- stood, partly due to a lack of research tools available to study this protein. We have begun to address these issues by developing alpaca-derived single domain antibodies, or nanobo- dies, targeting PRL-3 with a KD of 30–300 nM and no activity towards highly homologous family members PRL-1 and PRL-2. We found that longer and charged N-terminal tags on PRL-3, such as GFP and FLAG, changed PRL-3 localization compared to untagged protein, indicating that the nanobodies may provide …

Icam-1-Supar-Cd11b Axis Is A Novel Therapeutic Target For Metastatic Triple-Negative Breast Cancer, Dong Li, Hami Hemati, Younhee Park, Rokana Taftaf, Youbin Zhang, Jinpeng Liu, Massimo Cristofanilli, Xia Liu

Markey Cancer Center Faculty Publications

Accumulating evidence demonstrates that circulating tumor cell (CTC) clusters have higher metastatic ability than single CTCs and negatively correlate with cancer patient outcomes. Along with homotypic CTC clusters, heterotypic CTC clusters (such as neutrophil–CTC clusters), which have been identified in both cancer mouse models and cancer patients, lead to more efficient metastasis formation and worse patient outcomes. However, the mechanism by which neutrophils bind to CTCs remains elusive. In this study, we found that intercellular adhesion molecule-1 (ICAM-1) on triple- negative breast cancer (TNBC) cells and CD11b on neutrophils mediate tumor cell–neutrophil binding. Consequently, CD11b deficiency inhibited tumor cell–neutrophil binding …

Life Stressors And Immune Aging: Protective Effects Of Cognitive Reappraisal, Rebecca G. Reed, Steven R. Presnell, Ahmad Al-Attar, Charles T. Lutz, Suzanne C. Segerstrom

Markey Cancer Center Faculty Publications

Stressful life events may accelerate aspects of immune aging, but habitual use of an adaptive emotion regulation strategy, cognitive reappraisal, may attenuate these effects. This study examined whether cognitive reappraisal moderates the associations between life stressor frequency and stressor desirability on aspects of immune aging, including late-differentiated CD8+ T and natural killer (NK) cells and inflammatory markers (IL-6, TNF-α, and CRP), both between and within people in a longitudinal sample of 149 older adults (mean age = 77.8, range: 64–92 years). Participants reported stressful life events, use of cognitive reappraisal, and provided blood semiannually for up to 5 years to …

Single Fraction And Hypofractionated Radiation Cause Cochlear Damage, Hearing Loss, And Reduced Viability Of Merlin-Deficient Schwann Cells, Christine T. Dinh, Si Chen, Aida Nourbakhsh, Kyle Padgett, Perry Johnson, Stefania Goncalves, Olena Bracho, Esperanza Bas, Jorge Bohorquez, Paula V. Monje, Cristina Fernandez-Valle, Nagy Elsayyad, Xuezhong Liu, Scott M. Welford, Fred Telischi

Markey Cancer Center Faculty Publications

Background: Vestibular schwannomas (VS) are benign intracranial tumors caused by loss of function of the merlin tumor suppressor. We tested three hypotheses related to radiation, hearing loss (HL), and VS cell survival: (1) radiation causes HL by injuring auditory hair cells (AHC), (2) fractionation reduces radiation-induced HL, and (3) single fraction and equivalent appropriately dosed multi-fractions are equally effective at controlling VS growth. We investigated the effects of single fraction and hypofractionated radiation on hearing thresholds in rats, cell death pathways in rat cochleae, and viability of human merlin-deficient Schwann cells (MD-SC). Methods: Adult rats received cochlear irradiation with single …

The Plod2/Succinate Axis Regulates The Epithelial–Mesenchymal Plasticity And Cancer Cell Stemness, Yuxin Tong, Yifei Qi, Gaofeng Xiong, Junyan Li, Timothy L. Scott, Jie Chen, Daheng He, Linzhang Li, Chi Wang, Andrew N. Lane, Ren Xu

Markey Cancer Center Faculty Publications

Aberrant accumulation of succinate has been detected in many cancers. However, the cellular function and regulation of succinate in cancer progression is not completely understood. Using stable isotope-resolved metabolomics analysis, we showed that the epithelial mesenchymal transition (EMT) was associated with profound changes in metabolites, including elevation of cytoplasmic succinate levels. The treatment with cell-permeable succinate induced mesenchymal phenotypes in mammary epithelial cells and enhanced cancer cell stemness. Chromatin immunoprecipitation and sequence analysis showed that elevated cytoplasmic succinate levels were sufficient to reduce global 5-hydroxymethylcytosinene (5hmC) accumulation and induce transcriptional repression of EMT-related genes. We showed that expression of procollagen-lysine,2-oxoglutarate …

Reviewer Acknowledgments, Randy Wykoff Md, Mph & Tm, Rachel E. Dixon Mphil

Journal of Appalachian Health

As we reach our fifth year, we are particularly thankful for the contributions of our peer reviewers. The knowledge, expertise, and guidance offered by the people listed below have ensured that we can continue to share timely research to effect health and well-being across Appalachia.

Review Of: Appalachian Health: Culture, Challenges, And Capacity, Danielle M. Davidov

Journal of Appalachian Health

The Journal of Appalachian Health is committed to reviewing published media that relates to contemporary concepts affecting the health of Appalachia. This is a review of the text Appalachian Health: Culture, Challenges, and Capacity. This book is an ideal starting point for anyone interested in Appalachian history, public health, and health disparities research.

Piloting An Oral History Approach To Investigate Cancer Perspectives Among Residents Of Appalachian Kentucky, Courtney Martin, Lauren Hudson, Nathan L. Vanderford

Journal of Appalachian Health

Introduction: Kentucky ranks first in the U.S. in overall cancer incidence and mortality rates. Areas of the state that fall within the Appalachian Region, along Kentucky’s eastern border, experience disproportionately high rates of cancer compared to non-Appalachian counties.

Purpose: This pilot study investigates whether oral history interviews can be used to understand perspectives on cancer among residents of Appalachian Kentucky.

Methods: In 2020, participants (n = 5) who identified as being from and/or having strong connections to Appalachian Kentucky were recruited to participate in this pilot study. Participants included individuals working in cancer-related fields, oncology professionals, and those with personal …

A Better Life: Factors That Help And Hinder Entry And Retention In Mat From The Perspective Of People In Recovery, Adam D. Baus, Martha Carter, Jennifer Boyd, Erin Mcmullen, Trey Bennett, Alexandra Persily, Danielle M. Davidov, Christa Lilly

Journal of Appalachian Health

Introduction: Opioid addiction and opioid-related overdoses and deaths are serious public health problems nationally and in West Virginia, in particular. Medication-assisted treatment (MAT) is an effective yet underutilized treatment for opioid use disorder (OUD).

Purpose: Research examining factors that help individuals succeed in MAT has been conducted from provider and program perspectives, but little research has been conducted from the perspective of those in recovery.

Methods: This study, co-developed with individuals in recovery, took place in West Virginia-based MAT programs using an exploratory sequential mixed methods approach. The survey was open February through August 2021. Data were analyzed late 2021 …

Prevalence And Factors Of Self-Medication With Antibiotics In Claiborne County, Tennessee, Kimberly A. Carney, Lauren Wisnieski, Tristan Lackey, Donald Noah

Journal of Appalachian Health

Introduction: Antimicrobial resistance (AMR) is a serious concern to public health, causing an estimated 35,000 deaths annually in the U.S. Misuse of antimicrobials increases the rate of AMR. Self-medication with antibiotics (SMA) is a primary contributor to AMR that can be addressed through education. SMA has been reported at rates of 3% to 66% in the U.S. but has not been evaluated in Appalachia.¹ Low health literacy and barriers to accessing care have been correlated with SMA and are common in many areas of Appalachia.

Purpose: This study aims to assess factors associated with SMA, demographic differences in knowledge …

Factors Associated With Physical Activity Increases And Decreases Among A Sample Of Appalachian Residents During The Covid-19 Pandemic: A Cross-Sectional Study, Christiaan G. Abildso, Angela M. Dyer, Shay M. Daily, Christa Lilly, Emily A. Sarkees, Samantha I. Moyers, Thomas K. Bias

Journal of Appalachian Health

Introduction: Physical activity (PA) can prevent and reduce the deleterious physical and mental health effects of COVID-19 and associated lockdowns. Research conducted early in the pandemic demonstrates that a greater proportion of adults in the U.S. have decreased than increased PA, and the effects vary by sociodemographic factors. Ongoing evidence is important to identify patterns in PA changes during the pandemic.

Purpose: This study aims to identify factors associated with increases and decreases in PA during the COVID-19 pandemic in a convenience sample of adults residing in Appalachia.

Methods: Surveys were collected from a convenience sample of adults from eight …

Cancer Screening Behaviors And Associations With Childhood Trauma, Resiliency, And Patient–Provider Relationships: Findings From An Exploratory Study Of Appalachian Cervical Cancer Survivors, Dannell Boatman, Stephenie Kennedy-Rea, Lesley Cottrell, Hannah Hazard-Jenkins

Journal of Appalachian Health

Introduction: Adverse childhood experiences (ACEs) are associated with increased cancer risk. ACEs may affect this risk in a variety of ways, including cancer screening compliance. ACEs can contribute to mistrust in the medical profession, inhibit patient­–provider relationships and cause at-risk individuals to miss critical access points to preventive services. Protective factors may play an important role in mitigating ACE-related consequences by supporting resiliency.

Purpose: This study assesses the associations between ACEs, protective factors, patient–provider relationships, stage of cancer at diagnosis, and cancer screening behaviors for West Virginia (WV) cervical cancer survivors.

Methods: WV cervical cancer survivors diagnosed between 2000 and …

Rural Appalachian Women Will Suffer Disproportionately If Attempts To Further Restrict Emergency Contraception Are Successful, Amie M. Ashcraft, Sarah Dotson, Sara Farjo, Courtney S. Pilkerton, Pamela J. Murray

Journal of Appalachian Health

The removal of federal abortion protection has incited fear that restrictions on contraception may be next. Many states now imposing abortion restrictions and bans are in the South and Appalachian Regions of the U.S., where rates of unplanned pregnancy and poor health outcomes are already disproportionately high. Numerous studies have documented variable access to levonorgestrel EC (LNG EC) in community pharmacies, with particularly low rates of access at independent pharmacies that are more likely to be located in rural communities than chain pharmacies. Since the overturn of Roe v. Wade, some large chain pharmacies and online retailers are restricting …

We Welcome Findings From Further Afield, Randy Wykoff Md, Mph & Tm, Rachel E. Dixon Mphil

Journal of Appalachian Health

For the past five years, the Journal of Appalachian Health has published timely, high-quality research from within Appalachia. We also welcome submissions from those working outside of Appalachia who produce quality research of direct relevance to our region.

Impact Of Community-Driven Interventions On Dietary And Physical Activity Outcomes Among A Cohort Of Adults In A Rural Appalachian County In Eastern Kentucky, 2019–2022, Heather Norman-Burgdolf, Emily M. Dewitt, Rachel Gillespie, Kathryn Cardarelli, Stacey Slone, Alison Gustafson

Dietetics and Human Nutrition Faculty Publications

Several environmental level factors exacerbate poor health outcomes in rural populations in the United States, such as lack of access to healthy food and locations to be physically active, which support healthy choices at the individual level. Thus, utilizing innovative place-based approaches in rural locations is essential to improve health outcomes. Leveraging community assets, like Cooperative Extension, is a novel strategy for implementing community-driven interventions. This prospective cohort study (n = 152), recruited in 2019 and surveyed again in 2020 and 2021, examined individual level changes in diet and physical activity in one rural Appalachian county. During this time, multiple …

Controlled Release Of Dna Binding Anticancer Drugs From Gold Nanoparticles With Near-Infrared Radiation, Gracie Fitzgerald, Daniel Low, Luc Morgan, Cole Hilt, Micai Benford, Caleb Akers, Skyler Hornback, J. Zach Hilt, Daniel Scott

UK CARES Faculty Publications

Traditional chemotherapies target rapidly developing cells in the human body resulting in harsh side effects including fatigue, immune system suppression, and nausea, among others. Delivery systems to focus the active pharmaceutical ingredients (APIs) to the diseased tissue can diminish the negative side effects while improving treatment outcomes. Gold nanoparticles (AuNP) offer many unique advantages as drug delivery vehicles, including being biologically inert, easily adaptable to various shapes and sizes, able to create a strong Au-thiol bond, and able to generate heat upon the absorption of near-infrared light. To this end, a AuNP delivery vehicle was engineered to load and release …

Effectiveness And Implementation Of Mpath™-Crc: A Mobile Health System For Colorectal Cancer Screening, Anna C. Snavely, Kristie Foley, Ajay Dharod, Mark Dignan, Holly Brower, Elena Wright, David P. Miller Jr.

UK CARES Faculty Publications

Background Screening for colorectal cancer (CRC) is widely recommended but underused, even though CRC is the third most diagnosed cancer and the second leading cause of cancer death in the USA. The mPATH™ program is an iPad-based application designed to identify patients due for CRC screening, educate them on the commonly used screening tests, and help them select their best option, with the goal of increasing CRC screening rates.

Methods The mPATH™ program consists of questions asked of all adult patients at check-in (mPATH™-CheckIn), as well as a module specific for patients due for CRC screening (mPATH™-CRC). In this study, …

Factors Associated With Sun Protection Behaviors Among Childhood Cancer Survivors, Melissa Fluehr, Gary Kwok, Jerod L. Stapleton, Margaret Masterson, Katie A. Devine

UK CARES Faculty Publications

Background: Childhood cancer survivors (CCS) are at increased risk of developing skin cancer. Engaging in sun-protective behaviors may ameliorate that risk, but prior work shows that survivors engage in suboptimal levels of sun-protective behaviors. Guided by the Health Belief Model (HBM), this study evaluated factors associated with sun-protective behavior among CCS.

Methods: This is a secondary analysis of a survey study of 94 adult survivors of childhood cancer recruited from a long-term follow-up clinic. Participants reported their sun protection habits, skin type/ sensitivity, barriers to sun protection, and perceived severity and susceptibility of getting skin cancer. Descriptive statistics were used …

The Importance Of Translationally Evaluating Steroid Hormone Contributions To Substance Use, Erin E. Maher, Ashley Strzelecki, Jessica J. Weafer, Cassandra D. Gipson

Markey Cancer Center Faculty Publications

Clinically, women appear to be more susceptible to certain aspects of substance use disorders (SUDs). The steroid hormones 17β-estradiol (E2) and progesterone (Pg) have been linked to women-specific drug behaviors. Here, we review clinical and preclinical studies investigating how cycling ovarian hormones affect nicotine-, cocaine-, and opioid-related behaviors. We also highlight gaps in the literature regarding how synthetic steroid hormone use may influence drug-related behaviors. In addition, we explore how E2 and Pg are known to interact in brain reward pathways and provide evidence of how these interactions may influence drug-related behaviors. The synthesis of this review demonstrates the critical …

Improving Wastewater-Based Epidemiology Performance Through Streamlined Automation, Mohammad Dehghan Banadaki, Soroosh Torabi, William Strike, Ann Noble, James W. Keck, Scott M. Berry

UK CARES Faculty Publications

Wastewater-based epidemiology (WBE) has enabled us to describe Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infections in populations. However, implementation of wastewater monitoring of SARS- CoV-2 is limited due to the need for expert staff, expensive equipment, and prolonged processing times. As WBE increases in scope (beyond SARS-CoV-2) and scale (beyond developed regions), there is a need to make WBE processes simpler, cheaper, and faster. We developed an automated workflow based on a simplified method termed exclusion-based sample preparation (ESP). Our automated workflow takes 40 min from raw wastewater to purified RNA, which is several times faster than conventional WBE …

Inhibitory Effect Of Sulfur Dioxide Inhalation On Hering–Breuer Inflation Reflex In Mice: Role Of Voltage-Gated Potassium Channels, Nai-Ju Chan, Chun-Chun Hsu, You Shuei Lin, Ruei-Lung Lin, Lu-Yuan Lee

UK CARES Faculty Publications

Slowly adapting receptors (SARs), vagal mechanosensitive receptors located in the lung, play an important role in regulating the breathing pattern and Hering–Breuer inflation reflex (HBIR). Inhalation of high concentration of sulfur dioxide (SO 2), a common environmental and occupational air pollutant, has been shown to selectively block the SAR activity in rabbits, but the mechanism underlying this inhibitory effect remained a mystery. We carried out this study to determine if inhalation of SO 2 can inhibit the HBIR and change the eupneic breathing pattern, and to investigate further a possible involvement of voltage-gated K þ channels in the inhibitory effect …