Open Access. Powered by Scholars. Published by Universities.®

Medical Specialties Commons

Open Access. Powered by Scholars. Published by Universities.®

University of Kentucky

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1 - 30 of 2195

Full-Text Articles in Medical Specialties

Implementation Of An Evidence-Based Bundle To Educate Nurses In The Care Of Adult Post-Transplant Diabetes Mellitus Patients, Christine Slaughter Jan 2024

Implementation Of An Evidence-Based Bundle To Educate Nurses In The Care Of Adult Post-Transplant Diabetes Mellitus Patients, Christine Slaughter

DNP Projects

Background: After solid organ transplantation, between 10-40% of patients develop post-transplant diabetes mellitus (PTDM) due to the immunosuppression regimen, infection, stress response and pain. Hyperglycemia events are common and managing glycemic targets is critical to decrease the likelihood of graft failure and mortality.

Purpose: To determine the impact of an evidenced-based bundle education strategy on the perceived confidence/knowledge of nurses and on their documentation compliance in the care of adult solid organ post-transplant diabetes mellitus patients.

Methods: A single group, pretest-posttest design was implemented to evaluate the effectiveness of the electronic educational program on the nurses perceived confidence/knowledge regarding glycemic …


Say No To Drugs: Nonpharmacologic Interventions For Preventing Delirium In Critically Ill Patients Intubated & Sedated In A Pediatric Icu, Jessica C. Ellzey Jan 2024

Say No To Drugs: Nonpharmacologic Interventions For Preventing Delirium In Critically Ill Patients Intubated & Sedated In A Pediatric Icu, Jessica C. Ellzey

DNP Projects

Background. Delirium is an acute clinical syndrome that is characterized by features of disrupted arousal, attention, cognition, sleep, and perception. Delirium is a well-documented phenomenon in critical care settings in both adult and pediatric populations, particularly among patients with length of stay greater than or equal to 48 hours. Delirium has multiple adverse effects, including increased mortality rate, prolonged duration of mechanical ventilation, higher reintubation rates, prolonged intensive care unit (ICU) admission, prolonged hospital admission, short- and long-term cognitive impairment, and posttraumatic stress disorder. There are currently no accepted guidelines or FDA approved medications to treat ICU delirium in the …


Utilizing The Stop-Bang Questionnaire To Assess Risk Of Obstructive Sleep Apnea In Hospitalized Patients With Heart Failure To Facilitate Sleep Medicine Referrals Upon Discharge, Chelsea Mitchell Jan 2024

Utilizing The Stop-Bang Questionnaire To Assess Risk Of Obstructive Sleep Apnea In Hospitalized Patients With Heart Failure To Facilitate Sleep Medicine Referrals Upon Discharge, Chelsea Mitchell

DNP Projects

Background: Obstructive sleep apnea (OSA) is the most common sleep-breathing disorder. Undiagnosed OSA is highly prevalent in the population, especially in those with heart failure. OSA and heart failure combined create a negative feedback loop that can lead to poor clinical outcomes. Unfortunately, many cardiac patients are never screened for OSA.

Purpose: The purpose of this project is to improve screening rates for OSA via the STOP-Bang questionnaire and establish an efficient and effective process for referrals to sleep medicine for heart failure patients screening high-risk.

Methods: The design was a quality improvement project with pre- and post-testing and a …


Improving Knowledge, Confidence, And Competency Among Icu Nurses Concerning The Benefits Of Using The Uk Ventilator Separation Protocol, Brittany Monroe Jan 2024

Improving Knowledge, Confidence, And Competency Among Icu Nurses Concerning The Benefits Of Using The Uk Ventilator Separation Protocol, Brittany Monroe

DNP Projects

Background: The trauma intensive care unit (ICU) at University of Kentucky (UK) Healthcare uses a ventilator separation protocol which provides specific guidelines on the successful weaning of patients from mechanical ventilation. However, many of the nurses are not aware of this protocol as formal education is not included in their orientation or training. This lack of knowledge can lead to risks such as increased patient morbidity, mortality, ICU length of stay, and healthcare-related costs. Research shows that using structured mechanical ventilator weaning tools in the ICU can shorten the duration of mechanical ventilation, which in turn, lowers these associated risks. …


The Impact Of Lung Cancer Screening Education On Knowledge And Screening Rates In A Kentucky Cancer Survivorship Clinic, Alexandra Isler Jan 2024

The Impact Of Lung Cancer Screening Education On Knowledge And Screening Rates In A Kentucky Cancer Survivorship Clinic, Alexandra Isler

DNP Projects

Background: Lung cancer is a significant problem in Kentucky, which ranks fourth in the nation in adults who currently smoke. Early detection, through lung cancer screening, can prevent untimely deaths. Several barriers to screening exist including lack of knowledge and awareness among patients regarding lung cancer screening. By increasing knowledge, at risk patients can take the necessary steps to decrease incidence of late stage diagnoses.

Purpose: The purpose of this project was to evaluate patients’ knowledge of lung cancer screening and referral and screening rates before and after one-on-one patient education.

Methods: This was a quality improvement project that used …


Unknown Rectal Lesions: A Case Of Severe Proctitis Secondary To Mpox In The Setting Of Concomitant Hiv, Syphilis, Hsv, And Chlamydia, Nicole Robertson Mph, James Crosby Do, Cynthia R. Young Md, Msc, Anne E. Sayers Md, Nicholas J. Van Sickles Md Aug 2023

Unknown Rectal Lesions: A Case Of Severe Proctitis Secondary To Mpox In The Setting Of Concomitant Hiv, Syphilis, Hsv, And Chlamydia, Nicole Robertson Mph, James Crosby Do, Cynthia R. Young Md, Msc, Anne E. Sayers Md, Nicholas J. Van Sickles Md

ePublications of Emerging Medical Research Scholars

Introduction:

Mpox emerged as a public health crisis with limited research describing co-occurring HIV and sexually transmitted infections (STIs). We present a case of severe proctitis secondary to Mpox with concomitant HIV (Human Immunodeficiency Virus), syphilis, HSV (Herpes Simplex Virus), and chlamydia and review presentation, diagnosis, treatment, and prevention of Mpox with concurrent STIs.

Case Presentation:

34-year-old male living with HIV (LWH) presenting with worsening rectal pain, multiple anal papules, and fever. His laboratory workup revealed simultaneous positive results for orthopoxvirus, chlamydia, and HSV-1 PCR. We initiated tecovirimat due to rectal involvement and uncontrolled pain. He subsequently developed lesions on …


A Mini-Review Of What Matters In The Management Of Nas, Is Esc The Best Care?, Enrique Gomez Pomar Jul 2023

A Mini-Review Of What Matters In The Management Of Nas, Is Esc The Best Care?, Enrique Gomez Pomar

Pediatrics Faculty Publications

As the use of opioids and polysubstance by pregnant women has increased over the years, there has also been a sharp increase in cases of neonatal abstinence syndrome (NAS). Classically, infants affected by NAS have been cared for in neonatal intensive care units resulting in an increase of healthcare expenditure and resource utilization as well as separation from the families. Consequently, the Eat, Sleep, and Console (ESC) tool was developed and promoted as a novel method that focuses on maternal/infant dyad during hospital stay while decreasing the use of pharmacological interventions and therefore decreasing the length of stay and healthcare …


Piloting An Oral History Approach To Investigate Cancer Perspectives Among Residents Of Appalachian Kentucky, Courtney Martin, Lauren Hudson, Nathan L. Vanderford Apr 2023

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 Mini Review Of What Matters In The Management Of Nas, Is Esc The Best Care?, Enrique Gomez Pomar Jan 2023

A Mini Review Of What Matters In The Management Of Nas, Is Esc The Best Care?, Enrique Gomez Pomar

Pediatrics Faculty Publications

As the use of opioids and polysubstance by pregnant women has increased over the years, there has also been a sharp increase in cases of neonatal abstinence syndrome (NAS). Classically, infants affected by NAS have been cared for in neonatal intensive care units resulting in an increase of healthcare expenditure and resource utilization as well as separation from the families. Consequently, the Eat, Sleep, and Console (ESC) tool was developed and promoted as a novel method that focuses on maternal/infant dyad during hospital stay while decreasing the use of pharmacological interventions and therefore decreasing the length of stay and healthcare …


Improving Radiotherapy Workflow: Evaluation And Implementation Of Deep Learning Auto-Segmentation In A Multi-User Environment, And Development Of Automatic Contour Quality Assurance System, Jingwei Duan Jan 2023

Improving Radiotherapy Workflow: Evaluation And Implementation Of Deep Learning Auto-Segmentation In A Multi-User Environment, And Development Of Automatic Contour Quality Assurance System, Jingwei Duan

Theses and Dissertations--Radiation Medicine

Radiotherapy is a frequently used therapeutic modality for cancer patients. Accurately contouring of tumors and organs at risk (OARs) is critical for developing optimal treatment plans in radiotherapy, especially after the implementation of Intensity-modulated radiation therapy (IMRT) and Stereotactic Body Radiation Therapy (SBRT). The manual contouring process is time-consuming and suffers from inter-observer variations. However, manual contouring is often hindered by laborious clinical duties, leading to reduced effectiveness, and increased segmentation errors due to fatigue. Additionally, online adaptive radiation therapy(ART), which has been shown to benefit patient outcomes, places higher demands on contouring and quality assurance (QA) speed.

Recently, deep …


Creating Change In Pediatric Health Disparities: Utilizing Systemsbased Thinking To Overcome Disparities Affecting Pediatric Type 1 Diabetes In Kentucky, Sydney Speed Jan 2023

Creating Change In Pediatric Health Disparities: Utilizing Systemsbased Thinking To Overcome Disparities Affecting Pediatric Type 1 Diabetes In Kentucky, Sydney Speed

Lewis Honors College Thesis Collection

Healthcare disparities are perpetuated and upheld for patients with type 1 diabetes (T1D) in rural and underserved urban areas of Kentucky. By adopting systems-based thinking, we can identify areas of the healthcare system to change to eliminate these disparities. Namely, key leverage points of this system include distribution and utilization of resources, finances and the movement of money, and communication pathways. To address the disparities surrounding pediatric T1D in Kentucky, a state-wide medical event called Kentucky Diabetes Family Day (KDFD) was hosted. The focus of this event was to lessen the effects of these specific healthcare disparities by altering key …


Examining A Blood Biomarker Approach To Blood-Brain Barrier Disruption, Samantha Ford Jan 2023

Examining A Blood Biomarker Approach To Blood-Brain Barrier Disruption, Samantha Ford

Theses and Dissertations--Medical Sciences

Blood-brain barrier disruption has been identified to associate with the pathogenesis several neurological diseases such as dementia [1, 2], multiple sclerosis[3, 4], acute or chronic cerebral ischemia[5], brain trauma[5], meningitis[5], encephalitis[5], stroke[6], and seizures[7]. Being able to effectively identify blood-brain barrier disruption is limited in methodology. The current standard is using a cerebrospinal fluid (CSF) albumin to serum albumin index, which requires the use of a lumbar puncture. A novel method of identifying blood-brain barrier disruption utilizing blood biomarkers is proposed in this study. Participants in this study had previously collected blood and CSF samples, which were analyzed to compare …


Enhancing Dna-Damaging Therapy Through The Inhibition Of Dntp Synthesis Using A Synergistic Drug Combination To Treat Pancreatic Neuroendocrine Neoplasms, Jennifer Castle Md Jan 2023

Enhancing Dna-Damaging Therapy Through The Inhibition Of Dntp Synthesis Using A Synergistic Drug Combination To Treat Pancreatic Neuroendocrine Neoplasms, Jennifer Castle Md

Theses and Dissertations--Clinical and Translational Science

Despite clinical advances, pancreatic neuroendocrine neoplasms (pNEN) remain a difficult clinical entity to treat and can carry a poor prognosis. Systemic therapy is used to treat pNENs which are not amenable to surgical resection. Peptide receptor radionuclide therapy, a form of radiation therapy (RT) and cisplatin are two different forms of DNA-damaging therapy in current use to treat pNENs. However, their efficacy remains poor as single agents. This study aimed to increase the sensitivity of pNENs to the DNA-damaging agents, RT and cisplatin, by inhibiting deoxynucleotide triphosphate (dNTP) synthesis. Triapine, a ribonucleotide reductase inhibitor (RNRi), and ataxia telangiectasia and Rad3-related …


Ideal Body Weight And Body Fat Percentage Predict Relative Energy Deficiency In Sport (Red-S) Scores In Collegiate Athletes, Emily Norman Jan 2023

Ideal Body Weight And Body Fat Percentage Predict Relative Energy Deficiency In Sport (Red-S) Scores In Collegiate Athletes, Emily Norman

Theses and Dissertations--Nutrition and Food Systems

Background: Low energy availability (LEA) is the underlying cause of Relative Energy Deficiency in Sport (RED-S) which negatively affects athletes' physiological function, health, and performance. RED-S results from inadequate dietary intake to support energy expenditure for daily living, growth, and optimal performance. It occurs in both male and female athletes, with or without disordered eating. However, screening and diagnosis in athletes can be difficult. Objective: This study aims to identify strong predictors of RED-S and assess its prevalence in collegiate male and female athletes. Methods: A total of 270 NCAA athlete test points from mixed sports were evaluated for RED-S …


Protein S In Coagulation And Inflammation, Martha Mega Silvia Sim Jan 2023

Protein S In Coagulation And Inflammation, Martha Mega Silvia Sim

Theses and Dissertations--Molecular and Cellular Biochemistry

Protein S (PS) is a key regulator, which links inflammation and coagulation and performs multiple proposed functions in both processes. PS exists in the blood as a free soluble form (~40%), bound to complement component 4b-binding protein/ C4BP (~60%), and packaged in platelet α-granules (~2.5%). Subendothelial tissue factor (TF), upon exposure to blood, initiates coagulation, a proteolytic cascade which results in the activation of thrombin, the enzyme responsible for formation of a fibrin clot. PS is a critical anticoagulant that inhibits multiple steps of this process. Only the free fraction of PS has full anticoagulant properties, as C4BP blocks this …


Evaluation Of A Discharge Clinic Implemented For Patients Without A Primary Care Provider Or Access To Their Primary Care Provider, Jessica Sass Jan 2023

Evaluation Of A Discharge Clinic Implemented For Patients Without A Primary Care Provider Or Access To Their Primary Care Provider, Jessica Sass

DNP Projects

Background: Patients transitioning from an inpatient hospital stay to self-care responsibilities post-discharge are at risk for readmission resulting in increased cost and resource utilization. Care transition programs can result in cost avoidance and decreased resource utilization.

Purpose: The purposes of this project were to: (a) determine if implementation of a Discharge Clinic affected 30-day readmission rates in patients without a primary care provider, (b) ascertain if a visit by a paramedicine program paramedic impacted 30-day readmission rates in patients who missed their Discharge Clinic appointment, and (c) find out whether a second post-discharge phone call influenced 30-day readmission rates.

Method: …


Impact Of A Parent Education Program On Parents Of Children With Complex Congenital Heart Disease Prior To Discharge Home, Laura Elkhoury Jan 2023

Impact Of A Parent Education Program On Parents Of Children With Complex Congenital Heart Disease Prior To Discharge Home, Laura Elkhoury

DNP Projects

Abstract

Background and Purpose: Children with complex medical needs, such as children with complex congenital heart disease, are at risk for hospital readmission, morbidity, and mortality related to disease complications. Parents must be adequately prepared to care for their children following hospital discharge to prevent hospital readmission and complications. This study seeks to evaluate the impact of an education intervention on parental knowledge and stress related to caring for their child with complex medical needs.

Methods: The study design is a quasi-experimental, nonequivalent control pre-test/post-test design. The pre-test was administered prior to the educational intervention, with the post-test …


The Impact Of A Blood Pressure Reduction Program In Optimizing Control Of Hypertension Amongst Adult Females In An Outpatient Ambulatory Clinic, Brooke Englert Jan 2023

The Impact Of A Blood Pressure Reduction Program In Optimizing Control Of Hypertension Amongst Adult Females In An Outpatient Ambulatory Clinic, Brooke Englert

DNP Projects

Background: Hypertension (HTN) is a public health problem that, when well-controlled, can significantly reduce the risk of stroke, coronary heart disease, heart failure and death. Effective patient-provider communication strongly incentivizes an improvement in medical outcomes. Communication with patients can often be effectively delegated to other clinical staff, such as registered nurses (RNs) or clinical service technicians (CSTs) (Tavakoly Sany, Behzhad, Ferns & Peyman, 2020).

Purpose: Given the increased risk of all-cause and cardiovascular disease mortality of uncontrolled HTN, the purpose of this study was to implement and evaluate a standardized, evidence-based practice intervention via communication between APRN providers and patients …


Assessing Palliative Care Knowledge Among Medicine/Pulmonary Intensive Care Unit Staff To Identify Barriers And Increase Palliative Care Referrals, Ryan Mckendrick Jan 2023

Assessing Palliative Care Knowledge Among Medicine/Pulmonary Intensive Care Unit Staff To Identify Barriers And Increase Palliative Care Referrals, Ryan Mckendrick

DNP Projects

Background: To conduct a needs assessment to identify areas of opportunity for increased awareness of the interdisciplinary medicine/pulmonary intensive care unit (MICU) staffs’ knowledge of palliative care and identify potential barriers to initiating referrals for palliative care consultations. Then provide an educational intervention and assess effectiveness with a post interventions assessment of referrals. The goal of this project is to increase referrals for palliative care consults.

Methods: A pre-/post-survey design will be utilized to assess palliative care knowledge to identify barriers to palliative care consultation referrals. An educational intervention that addresses palliative care knowledge deficits and addresses barriers will be …


Evaluating Kentucky Advanced Practice Registered Nurses’ Confidence, Comfort, And Knowledge Levels Regarding Dermatology Care After A Web-Based Video Training, Victoria Hayden Jan 2023

Evaluating Kentucky Advanced Practice Registered Nurses’ Confidence, Comfort, And Knowledge Levels Regarding Dermatology Care After A Web-Based Video Training, Victoria Hayden

DNP Projects

Background: It can take an average of 38.9 days to see dermatology from referral to initial appointment. As a result, delays in diagnosis and treatment of life-threatening conditions such as malignant melanoma could occur. Primary care providers frequently refer patients for benign conditions that can be appropriately managed in the primary care setting; often due to lack of knowledge or confidence in their clinical management skills. Educational resources equip providers with the knowledge and tools to feel confident in their management of various skin conditions in a primary care setting. Purpose: The purpose of this project was to …


Depression Management Among Primary Care Providers: Evaluation Of An Educational Intervention, Whitney Hunt Jan 2023

Depression Management Among Primary Care Providers: Evaluation Of An Educational Intervention, Whitney Hunt

DNP Projects

Background: Nearly one-third of patients diagnosed with depression and prescribed an antidepressant medication will stop taking their medication within the first month. Timely follow-up care can improve medication adherence and symptoms for depressed patients on antidepressants however, most patients do not receive timely follow-up. Common system and provider-based barriers to timely follow-up include limited provider time, lack of training, and mental health stigma.

Objective: The purpose of this project was to assess provider attitudes, knowledge level, perceived barriers, and current depression management strategies in a primary care setting.

Methods: In this quasi-experimental one group pre/post-test study a survey was used …


The Effect Of An Educational Handout On Knowledge, Awareness And Attitudes Of Pre-Exposure Prophylaxis (Prep) Among Participants At A Needle And Syringe Exchange Site, Mckenzie Buckel Jan 2023

The Effect Of An Educational Handout On Knowledge, Awareness And Attitudes Of Pre-Exposure Prophylaxis (Prep) Among Participants At A Needle And Syringe Exchange Site, Mckenzie Buckel

DNP Projects

Background: In 2018, the total number of HIV cases in the United States was 1.2 million. Almost 186,500 of these cases were attributed to intravenous drug use. With the adherence to pre-exposure prophylaxis (PrEP) there is approximately a 49% decrease in the rates of HIV among people who inject drugs and the most significant barrier to PrEP among this population is a lack of awareness and knowledge.

Objective: The purpose of this study was to determine participants’ of a needle and syringe exchange site knowledge, awareness and attitudes of PrEP after reviewing an educational handout about PrEP.

Methods: A quasi …


Evaluation Of Patient And Clinical Staff Perceptions Of Screening For Social Needs In An Underserved Population, Alysha Greenwell Jan 2023

Evaluation Of Patient And Clinical Staff Perceptions Of Screening For Social Needs In An Underserved Population, Alysha Greenwell

DNP Projects

Abstract

Background. Despite ample strong evidence linking social determinants of health (SDOH) and unmet social needs to higher healthcare costs and worse health outcomes across the lifespan, only 16% of healthcare practices screen their patients for social needs. Various barriers contribute to low screening rates, including uncertainty about best methods for screening, the amount of time it takes to screen, and lack of confidence in knowing what to do once needs have been identified. As movements toward value-based models of care change the healthcare landscape, healthcare systems must find practical and effective methods to effectively screen for social needs utilizing …


Development Of A Community-Based Plan For An Effective Behavioral Intervention To Reduce Childhood Obesity In A Rural Appalachian Community, Jennifer Stacy Wells Jan 2023

Development Of A Community-Based Plan For An Effective Behavioral Intervention To Reduce Childhood Obesity In A Rural Appalachian Community, Jennifer Stacy Wells

Theses and Dissertations--Nutrition and Food Systems

Rural children experience increased rates of obesity and reduced access to specialized weight management facilities, which makes receiving the recommended frequency of care difficult. Clinical-community partnerships, recommended by the American Academy of Pediatrics (AAP) to expand access, have been shown to be a feasible strategy of care delivery. Examination of literature and stakeholder interviews were used to inform the development of a collaborative pediatric weight management program in a rural, Appalachian community. Screening articles as well as intervention articles were reviewed. Outcomes of screening articles reviewed included BMI measures (3), screening practices (7), and referral practices (4). Common outcomes of …


Modified Early Warning Scoring (Mews) Versus Epic Deterioration Index (Edi): Battle Royale For Which Has The Best Patient Outcomes In The Inpatient Setting, Dirk A. Church Jan 2023

Modified Early Warning Scoring (Mews) Versus Epic Deterioration Index (Edi): Battle Royale For Which Has The Best Patient Outcomes In The Inpatient Setting, Dirk A. Church

DNP Projects

Abstract

Background: The increased workload bedside nurses face today requires new tools to assist with the identification of deteriorating patients during hospitalization. The Modified Early Warning Score (MEWS) tool has formed the background of early warning tools. Newer, more complex tools, like Epic’s Deterioration Index (EDI), have been developed to identify patient deterioration earlier. There is lack of evidence in the literature comparing different early warning tools, implementation, and patient outcomes.

Objective: The purpose of the study was to examine models for EWS notification for RRT and patient outcomes between the use of the MEWS and EDI in an adult, …


Patient Characteristics And Telehealth Visits In A Hepatology Clinic, Maria E. Walters Jan 2023

Patient Characteristics And Telehealth Visits In A Hepatology Clinic, Maria E. Walters

DNP Projects

BACKGROUND: In an attempt to decrease significant no-show rates amongst telehealth patients in a Hepatology outpatient clinic, a clinic-specific intervention was executed, which was efficient in decreasing no-show rates, however could not continue to be financially supported.

PURPOSE: The purpose of this study was to evaluate correlations between demographic data and social determinants of health with patients who showed and did not show for their telehealth appointments, with an overall goal of determining if there is a need for targeted support for telehealth appointments to decrease no-show rates.

METHODS: Electronic health records of telehealth patients were reviewed in an …


Rna Editing Of Microtubule-Associated Protein Tau Circular Rnas Promotes Their Translation And Tau Tangle Formation, Justin Ralph Welden, Giorgi Margvelani, Karol Andrea Arizaca Maquera, Bhavani Gudlavalleti, Sandra C. Miranda Sardón, Alexandre Rosa Campos, Noémie Robil, Daniel C. Lee, Alvaro G. Hernandez, Wang-Xia Wang, Jing Di, Pierre De La Grange, Peter T. Nelson, Stefan Stamm Dec 2022

Rna Editing Of Microtubule-Associated Protein Tau Circular Rnas Promotes Their Translation And Tau Tangle Formation, Justin Ralph Welden, Giorgi Margvelani, Karol Andrea Arizaca Maquera, Bhavani Gudlavalleti, Sandra C. Miranda Sardón, Alexandre Rosa Campos, Noémie Robil, Daniel C. Lee, Alvaro G. Hernandez, Wang-Xia Wang, Jing Di, Pierre De La Grange, Peter T. Nelson, Stefan Stamm

Sanders-Brown Center on Aging Faculty Publications

Aggregation of the microtubule-associated protein tau characterizes tauopathies, including Alzheimer’s disease and frontotemporal lobar degeneration (FTLD-Tau). Gene expression regulation of tau is complex and incompletely understood. Here we report that the human tau gene (MAPT) generates two circular RNAs (circRNAs) through backsplicing of exon 12 to either exon 7 (12→7 circRNA) or exon 10 (12→10 circRNA). Both circRNAs lack stop codons. The 12→7 circRNA contains one start codon and is translated in a rolling circle, generating a protein consisting of multimers of the microtubule-binding repeats R1–R4. For the 12→10 circRNA, a start codon can be introduced by two …


Genetic Expression Changes And Pathologic Findings Associated With Hyperhomocysteinemia In Human Autopsy Brain Tissue, Erica M. Weekman, Zachary Winder, Colin B. Rogers, Erin L. Abner, Tiffany L. Sudduth, Ela Patel, Adam J. Dugan, Shuling X. Fister, Brandi Wasek, Peter T. Nelson, Gregory A. Jicha, Teodoro Bottiglieri, David W. Fardo, Donna M. Wilcock Dec 2022

Genetic Expression Changes And Pathologic Findings Associated With Hyperhomocysteinemia In Human Autopsy Brain Tissue, Erica M. Weekman, Zachary Winder, Colin B. Rogers, Erin L. Abner, Tiffany L. Sudduth, Ela Patel, Adam J. Dugan, Shuling X. Fister, Brandi Wasek, Peter T. Nelson, Gregory A. Jicha, Teodoro Bottiglieri, David W. Fardo, Donna M. Wilcock

Sanders-Brown Center on Aging Faculty Publications

Introduction: Vascular contributions to cognitive impairment and dementia (VCID) are a leading cause of dementia. An underappreciated, modifiable risk factor for VCID is hyperhomocysteinemia (HHcy), defined by elevated levels of plasma homocysteine, most often due to impaired B vitamin absorption in aged persons. Studies aimed at identifying neuropathologic features and gene expression profiles associated with HHcy have been lacking.

Methods: A subset of research volunteers from the University of Kentucky Alzheimer’s Disease Research Center longitudinal cohort came to autopsy and had ante mortem plasma homocysteine levels available. Brain tissue and blood plasma drawn closest to death were used to measure …


Apoe Genetics Influence Murine Gut Microbiome, Diana J. Zajac, Stefan J. Green, Lance A. Johnson, Steven Estus Dec 2022

Apoe Genetics Influence Murine Gut Microbiome, Diana J. Zajac, Stefan J. Green, Lance A. Johnson, Steven Estus

Sanders-Brown Center on Aging Faculty Publications

Apolipoprotein E (APOE) alleles impact pathogenesis and risk for multiple human diseases, making them primary targets for disease treatment and prevention. Previously, we and others reported an association between APOE alleles and the gut microbiome. Here, we evaluated effects of APOE heterozygosity and tested whether these overall results extended to mice maintained under ideal conditions for microbiome analyses. To model human APOE alleles, this study used APOE targeted replacement (TR) mice on a C57Bl/6 background. To minimize genetic drift, homozygous APOE3 mice were crossed to homozygous APOE2 or homozygous APOE4 mice prior to the study, and the resulting …


Single Low-Dose Targeted Bevacizumab Infusion In Adult Patients With Steroid-Refractory Radiation Necrosis Of The Brain: A Phase Ii Open-Label Prospective Clinical Trial, Shervin R. Dashti, Robert J. Kadner, Bradley S. Folley, Jason P. Sheehan, Dong Y. Han, Richard J. Kryscio, Mary B. Carter, Lisa B. E. Shields, Brian M. Plato, Renato V. La Rocca, Aaron C. Spalding, Tom L. Yao, Justin F. Fraser Dec 2022

Single Low-Dose Targeted Bevacizumab Infusion In Adult Patients With Steroid-Refractory Radiation Necrosis Of The Brain: A Phase Ii Open-Label Prospective Clinical Trial, Shervin R. Dashti, Robert J. Kadner, Bradley S. Folley, Jason P. Sheehan, Dong Y. Han, Richard J. Kryscio, Mary B. Carter, Lisa B. E. Shields, Brian M. Plato, Renato V. La Rocca, Aaron C. Spalding, Tom L. Yao, Justin F. Fraser

Sanders-Brown Center on Aging Faculty Publications

OBJECTIVE There is an unmet need for safe and rapidly effective therapies for refractory brain radiation necrosis (RN). The aim of this prospective single-arm phase II trial was to evaluate the safety and efficacy of a single low-dose targeted bevacizumab infusion after blood-brain barrier disruption (BBBD) in adult patients with steroid-refractory brain RN.

METHODS Ten adults with steroid-refractory, imaging-confirmed brain RN were enrolled between November 2016 and January 2018 and followed for 12 months after treatment. Bevacizumab 2.5 mg/kg was administered as a one-time targeted intra-arterial infusion immediately after BBBD. Primary outcomes included safety and > 25% decrease in lesion volume. …