Investigative Techniques Commons^™

Dementia Incidence In Patients With Prurigo Nodularis: An Observational Retrospective Cohort Study, Madison P. Olexson, Ana Ormaza Vera, Chunghwan Ro, Clinton W. Enos

Department Dermatology Faculty Publications

[Introduction] Prurigo nodularis (PN) is a chronic neuroinflammatory dermatosis of unknown etiology characterized by severely pruritic, symmetrically-distributed nodules with a negative impact on quality of life [1]. While some consider PN a primary idiopathic disorder, it often arises as a secondary manifestation of underlying conditions, including atopic dermatitis (AD), chronic kidney disease (CKD), human-immunodeficiency-virus (HIV), and thyroid disorders [2]. Although patients with PN are at higher risk for psychiatric comorbidities including depression, anxiety, and suicidal ideation [3] research which investigates associations between PN and neurodegenerative disorders is limited [4]. Moreover, emerging evidence implicating sustained systemic inflammation, characteristic of psoriasis and …

Brief Pulses Of High-Level Fluid Shear Stress Enhance Metastatic Potential And Rapidly Alter The Metabolism Of Cancer Cells, Amanda N. Pope, Devon L. Moose, Guy O. Hudson, Hank R. Weresh, Marion R. Dykstra, Aabha Y. Joshi, Patrick Breheny, Eric B. Taylor, Michael D. Henry

Department of Biomedical and Translational Sciences Faculty Publications

Circulating tumor cells (CTCs) face challenges to their survival, including mechanical and oxidative stresses that are different from cancer cells in solid primary and metastatic tumors. The impact of adaptations to the fluid microenvironment of the circulation on the outcome of the metastatic cascade is not well understood. Here, we find that cancer cells exposed to brief pulses of high-level fluid shear stress (FSS) exhibit enhanced invasiveness and anchorage-independent proliferation in vitro and enhanced metastatic colonization/tumor formation in vivo. Cancer cells exposed to FSS rapidly alter their metabolism in a manner that promotes survival by providing energy for cytoskeletal remodeling …

Preoperative Patient Sentiment Is Associated With Postoperative Outcomes In Adult Spinal Deformity Surgery, Ross J. Gore, David Mazur-Hart, Mohan K. Sunkara, Aaqib Ali, Qizar Ali, Christopher J. Lynch, Christopher Ames

Center for Secure and Intelligent Critical Systems (CSICS) Publications

Study Design: Prospective observational pilot study of adult spinal deformity surgery patients.

Objective: To determine whether preoperative patient sentiment, quantified using a 21-class valence scale extending the CARP paradigm implemented through an offline Large Language Model, predicts postoperative outcomes.

Summary of Background Data: Predicting adult spinal deformity surgery outcomes remains challenging with traditional clinical and radiographic parameters alone. Although patient psychological factors and expectations significantly influence postoperative satisfaction and quality of life, systematic approaches to capture these factors are underdeveloped. Offline Large Language Models offer scalable, privacy-preserving psychological risk stratification.

Materials and Methods: We prospectively enrolled 18 patients undergoing adult …

Revisiting Nasal Polyp Scoring In Clinical Trials: Interpretive Variability And The Need For Standardization, Leigh J. Sowerby, Babak Pourmomenarabi, Antonino Maniaci, Olivia Ginty, Joseph Khristian Han

Department of Otolaryngology (ENT) Faculty Publications

[Introduction] Borish et al. provided an excellent review highlighting methodological variability among the six pivotal Phase III trials [1]. One critical yet overlooked issue is the inconsistent application of the endoscopic nasal polyp score (NPS), a primary outcome measure in all trials.

Adaptive Self-Attention For Enhanced Segmentation Of Adult Gliomas In Multi-Modal Mri, Evan P. Savaria, Jiangwen Sun

Computer Science Faculty Publications

Every year there are an estimated 80,000–90,000 new glioma cases, highlighting the need for reliable imaging-based decision support. Although deep learning has improved tumor sub-region segmentation, many state-of-the-art models fail to fully capture complementary information across T1, T1Gd, T2, and FLAIR MRI modalities and often operate as “black boxes,” limiting physician trust when precise delineation is critical for surgical planning, radiation targeting, and treatment monitoring. To address these limitations, we propose AIMS, an Adaptive Integrated Multi-Modal Segmentation framework that maintains modality-specific feature streams and employs adaptive self-attention within a hierarchical CNN-Transformer architecture to prioritize and fuse multi-modal MRI features. We …

Hungarian Validation Of The Pelvic Floor Distress Inventory - 20 (Pfdi-20) Questionnaire And The Pelvic Floor Impact Questionnaire - 7 (Pfiq - 7), Barbara Kozma, Bence Kozma, Peter Takacs, Dávid Rátonyi, Nelli Farkas, Attila G. Sipos, Balint Farkas

Department of Obstetrics & Gynecology Faculty Publications

Introduction and Hypotheses

Pelvic floor disorders (PFDs) affect women's quality of life through physical, psychological, and social domains. The Pelvic Floor Distress Inventory-20 (PFDI-20) and the Pelvic Floor Impact Questionnaire-7 (PFIQ-7) are validated tools for assessing symptom severity and quality of life impact. The current study aim to investigate the reliability and validity of the Hungarian versions of these questionnaires in women with PFD symptoms.

Methods

This validation study was carried out at the University of Debrecen among women with clinically confirmed pelvic floor disorders. The PFDI-20 and PFIQ-7 questionnaires were translated into Hungarian using independent native English speaker in …

When Unilateral Leg Swelling Is Not Deep Vein Thrombosis: A Case Of Disseminated Kaposi Sarcoma Revealing Advanced Human Immunodeficiency Virus, Ahmed Ismail, Zachary Wilson, Thomas Currow, Michael Dileonardo, Carsten Kirby

Department of Medicine Faculty Publications

Kaposi sarcoma (KS) is an acquired immunodeficiency syndrome (AIDS)-defining malignancy that can involve the skin, lymph nodes, and visceral organs in patients with advanced human immunodeficiency virus (HIV). We report the case of a 35-year-old man with no known prior medical history who presented to the charity care clinic complaining of recurrent thrush and two weeks of progressive right lower extremity swelling. His physical examination revealed painful, pruritic violaceous papules and plaques over the proximal right thigh that had been present for one week. He was referred to the emergency department (ED) for further workup. Venous duplex ultrasonography was negative …

Concentric Macular Rings And Oct Corrugations In Foveal Hypoplasia: Proof Of Concept For An Optical Interference Mechanism, Ari August, Ralph Eagle, Tatyana Milman, Rebecca Procopio, Bruce Schnall, Jose Pulido

Wills Eye Hospital Papers

BACKGROUND: Concentric macular rings (CMR) and Henle fiber layer (HFL) corrugations, potential clinical biomarkers of foveal hypoplasia, have been observed in laser fundus photographs and optical coherence tomography (OCT) images, respectively. Some believe these findings represent true anatomical structural changes while others hypothesize that they are artifacts of interference; however, to our knowledge, no previous study has provided evidence to support either theory.

METHODS: This retrospective case series analyzed CMR and OCT corrugations in 3 patients (6 eyes) with foveal hypoplasia. Dark fringe diameters of CMR at different wavelengths (λ: red = 635, green = 532, blue = 488 nm) …

Prediction Of Lung Vital Capacity Value From Thoracoabdominal Expansion In Young Adults, Aung Myo Htun, Aung Aung Nwe, Chatchaya Jaimanee, Thiwaphon Chatprem, Saowanee Nakmaroeng, Chatchai Phimphasak

Journal of Health Research

Background: Vital capacity (VC) is a fundamental indicator of pulmonary health, but its routine assessment often depends on spirometry devices that may be unavailable (i.e. because of access, cost) in many clinical or community settings. In contrast, lower costal (LC) and upper abdominal (AB) expansions are simple, equipment-free methods commonly used in physiotherapy.

Method: This cross-sectional study was aimed at developing prediction equations for VC using LC or upper AB expansion alongside demographic and anthropometric variables. The study involved 116 healthy nonsmokers (53 male and 63 female individuals) aged 18–39 years. VC was measured via spirometry using a …

A Phase-Ii Randomized Controlled Pilot And Feasibility Study Of Nicotinamide Riboside Supplementation In Older Adults With Amnestic Mild Cognitive Impairment, Christopher R. Martens, Kevin P. Decker, Theodore M. Deconne, Faria Sanjana, Fiona Horvat, Nicholas A. Rizzi, Catherine Awad, Elizabeth Habash, Joshua C. Hobson, Michael L. Armstrong, Nichole Reisdorph, Ryan T. Pohlig, Alyssa M. Lanzi, Curtis L. Johnson, Matthew L. Cohen, James M. Ellison

Department of Psychiatry and Human Behavior Faculty Papers

Abstract

Background

The decline of nicotinamide adenine dinucleotide (NAD+) with aging may elevate risk of Alzheimer’s disease and related neurocognitive disorders (ADRD) by impairing cellular energy metabolism and reducing cerebral blood flow.

Method

We conducted a 12-week double-blind, randomized, placebo-controlled pilot study to evaluate the safety, tolerability, and preliminary efficacy of the NAD+ precursor, nicotinamide riboside (NR; 500 mg b.i.d.), for enhancing cognitive function and cerebral perfusion in older adults with mild cognitive impairment (MCI).

Result

52 participants (33 females, 19 males) were randomized and 42 completed the trial (NR = 22, placebo = 20). Adherence was similar between groups …

P-15 Peptide Enhanced Bone Graft Improves Time To Fusion In Transforaminal Lumbar Interbody Fusion: A Randomized, Controlled, Investigational Device Exemption Study, James S. Harrop, Michael P. Steinmetz, John E. O'Toole, Christopher D Chaput, Rick C. Sasso, K. Brandon Strenge, Greg Maislin, Jeffrey P. Mullin, Thomas B. Freeman, Anthony Guanciale, Howard Lantner, Michael E. Janssen, David G. Schwartz, John M. Small, Wellington K. Hsu, Paul M. Arnold

Department of Neurosurgery Faculty Papers

STUDY DESIGN: Prospective, multicenter, single-blind, randomized, and controlled pivotal study.

OBJECTIVE: Compare time-to-fusion in patients treated with P-15L (PearlMatrix TM P-15 peptide enhanced bone graft) versus local autograft over 24 months and evaluate changes in pain and quality of life at 24 months relative to baseline.

SUMMARY OF BACKGROUND DATA: P-15L, an FDA-designated breakthrough device, is a composite bone graft with P-15, a 15-amino acid polypeptide that promotes cellular adhesion, proliferation, and differentiation to support bone formation.

METHODS: Patients (22-80 y) with degenerative disc disease were randomized to the investigational (P-15L) or control (local autograft) group during single-level transforaminal lumbar …

Radiogenomic Profiling Of Prostate Tumors Prior To External Beam Radiotherapy Converges On A Transcriptomic Signature Of Tgf-Β Activity Driving Tumor Recurrence, Anson T. Ku, Uma Shankavaram, Shana Y. Trostel, Hong Zhang, Sumeyra Kartal, Houssein A. Sater, Stephanie A. Harmon, Nicole V. Carrabba, Yang Liu, Hyunnam Ryu, James A. Proudfoot, Boon Hao Hong, Bradford J. Wood, Peter A. Pinto, Peter L. Choyke, Mack Roach, Howard M. Sandler, Stephanie L. Pugh, Kenneth L. Zeitzer, Lucas C. Mendez, Nirav S. Kapadia, William A. Hall, Anand B. Desai, Radka S. Stoyanova, Alan Pollack, Elai Davicioni, Melvin L. K. Chua, Baris Turkbey, Adam G. Sowalsky, Deborah E. Citrin

Einstein Health Papers

PURPOSE: Clinical risk grouping based on PSA, tumor grade, and disease extent guides treatment intensity for localized prostate cancer. However, many patients with intermediate- or high-risk disease treated with external beam radiotherapy (EBRT) and androgen deprivation therapy (ADT) still develop biochemical recurrence (BCR). Early identification of patients at high risk for BCR could enable personalized treatment strategies.

EXPERIMENTAL DESIGN: We prospectively enrolled 29 patients with intermediate- or high-risk prostate cancer undergoing EBRT and ADT. Pretreatment biopsies (n = 60) underwent whole-transcriptome microarray and whole-exome sequencing. Patients received multiparametric MRI at baseline and 6 months after treatment, with a median follow-up …

Model For Calculating Impact Force For Individualized Hip Fracture Prediction During A Fall, Alisha Agarwal, Daniel Kargilis, Nishtha Gupta, Michael Chang, Rui Feng, Gregory Chang, Chamith S. Rajapakse

Student Papers, Posters & Projects

Osteoporotic-related weakening of bone is a common cause of hip fractures. The standard of care for the diagnosis and management of osteoporosis is the dual-energy x-ray absorptiometry bone mineral density T-scores. Many individuals considered nonosteoporotic, however, still sustain fractures since these tools do not incorporate vital bone parameters and subject-specific characteristics. The purpose of this work was to (1) develop a simple analytical model for estimating the force exerted on the femur during a fall (i.e., impact force) based on measurable patient metrics and (2) define a quantifiable fracture risk index by comparing finite-element-derived bone strength and impact force, which …

Laboratory Monitoring In Patients With Moderate To Severe Plaque Psoriasis, Jonathan M. Fenkel, John A. Osborne, April W. Armstrong, Bruce Strober, Linda Stein Gold, Michael Cameron, Mark Lebwohl

Department of Medicine Faculty Papers

OBJECTIVES: Plaque psoriasis is a common immune-mediated disease associated with various comorbidities, including cardiovascular disease, diabetes, psoriatic arthritis, liver disease, and mood disorders. Biologic and small-molecule therapies are efficacious and well tolerated in adults with moderate to severe plaque psoriasis. However, dermatologists may be uncertain about appropriate laboratory monitoring in patients treated with these therapies, especially those with comorbidities.

METHODS: This review summarizes prescribing information and provides expert recommendations based on real-world experience in the monitoring of concerning laboratory values in patients with psoriasis.

RESULTS: Individualized monitoring is essential for maximizing the benefits and minimizing the risks associated with biologic …

First Mammography Screening Participation And Breast Cancer Incidence And Mortality, Forruk Ahmed, Anna Aleksyeyeva, Oman Balan, Ashley Hassang

Publications and Research

This population-based cohort study evaluated the long-term relationship between initial participation in mammography screening and subsequent breast cancer outcomes among approximately 432,000 women in Stockholm, Sweden. Women were invited to their first screening between 1991 and 2020 at ages 40 or 50 and followed for up to 25 years through national health registries. Overall, 32% did not attend their initial screening. Non-attenders were significantly less likely to participate in later screening rounds and were more likely to be diagnosed with advanced disease, showing 1.5-fold higher odds of stage III and more than 3.5-fold higher odds of stage IV breast cancer …

Dual-Task Interaction Between Vestibular Function And Cognitive Processing Using The P300 Event-Related Potential, Laurel Elise Money-Nolan

Graduate Theses and Dissertations (2019 - present)

Previous research has established links between vestibular function and cognitive processing, aging and cognitive function, and aging and vestibular function. Theories of cognitive resource allocation discuss how cognitive resources, such as attention, are devoted towards and divided between tasks when multitasking. This dual-task study, utilizing a balance task and a listening/cognitive task, across the young- and middle-aged adult age range, aimed to evaluate potential relationships between vestibular function, cognition, and age, and to examine how cognitive resources might be allocated under dual-task conditions.

The dual-task protocol in this study utilized an oddball paradigm with tonal stimuli to measure the P300 …

Detection Of Phase-Binning And Interpolation Artifacts In 4-Dimensional Computed Tomography Imaging Using Deep Learning And Rule-Based Approaches, Jorge Cisneros, Nathan H. Feldt, Yevgeniy Vinogradskiy, Richard Castillo, Edward Castillo

Department of Radiation Oncology Faculty Papers

BACKGROUND: Four-dimensional computed tomography (4DCT) imaging is a crucial component to lung cancer radiotherapy planning and enables CT-ventilation-based functional avoidance planning to mitigate radiation toxicity. However, 4DCT scans are frequently impaired by acquisition artifacts that corrupt downstream analyses that depend on lung segmentation and deformable image registration, such as CT-ventilation and dose accumulation.

PURPOSE: This study develops 3D deep learning models to identify phase-binning artifacts at the voxel level and a heuristic, rule-based method to identify interpolation slices within 4DCT images.

METHODS: We introduce a generator that systematically inserts synthetic phase-binning and interpolation artifacts into any artifact-free breathing phase obtained …

Promising Effects Of Car T-Cell Therapy In Refractory Stiff Person Syndrome And A Hopeful Future For All Neuroautoimmunities, Marinos Dalakas

Department of Neurology Faculty Papers

Chimeric antigen receptor (CAR) T cells are genetically modified T cells expressing CARs, initially developed to recognize tumor antigens and kill cancer cells that evade T-cell recognition. Because of their impressive success in hemato-oncologic malignancies, CAR T cells are being repurposed with redesigned constructs for safety and sustained efficacy to target refractory systemic autoimmune or neurologic diseases. The CD19 CAR T cells-targeting those CD19-positive, antibody-secreting, long-lived plasma cells, and plasmablasts-are now extensively explored in refractory neuroautoimmunities with promising benefits based on case series in patients with myasthenia gravis (MG), stiff person syndrome (SPS), neuromyelitis, myositis, and multiple sclerosis; some patients …

Long-Term Liver-Targeted Aav8 Gene Therapy For Mucopolysaccharidosis Iva, Shaukat A. Khan, Eliana Benincore-Florez, Fnu Nidhi, Jose Victor Álvarez, Dione A. Holder, Shunji Tomatsu

Department of Pediatrics Faculty Papers

Mucopolysaccharidosis IVA (MPS IVA) is a lysosomal storage disease with an autosomal recessive trait caused by the deficiency of N-acetylgalactosamine-6-sulfate sulfatase (GALNS) enzyme, which leads to the accumulation of chondroitin-6-sulfate and keratan sulfate, primarily in cartilage and its extracellular matrix, resulting in a direct impact on cartilage and bone development, as well as subsequent systemic skeletal dysplasia. ERT and HSCT are current treatment options, but they have a limited effect on bone lesions. In this article, we investigated liver-specific AAV8 vectors with a thyroxine-binding globulin promoter in the MPS IVA murine model to evaluate the long-term (24 weeks in males …

Sensitivity And Specificity Of The Cobas Liat Ct/Ng/Mg Nucleic Acid Test In A Clinical Laboratory Setting And Point-Of-Care Location, B Van Der Pol, R Arcenas, C Boraas, S Chavoustie, L L. Crane, N D'Empaire, A C. Ermel, G Harnett, F Hinestrosa, S House, Rebecca A. Lillis, J Miller, A Mills, R Poblete, S A. Young

School of Medicine Faculty Publications

Sexually transmitted infections, e.g., Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and Mycoplasma genitalium (MG), present with similar signs/symptoms and are often treated empirically due to delays in receiving diagnostic test results. This study evaluated the clinical performance of the Cobas Liat CT/NG/MG nucleic acid amplification test (NAAT) in detecting these pathogens in a point-of-care (POC) setting. This non-interventional, multicenter study recruited symptomatic/asymptomatic participants from 13 geographically diverse POC sites across the USA. Prospective clinician- and self-collected specimens (urine/vaginal swabs) were used to determine the sensitivity and specificity of the Cobas Liat CT/NG/MG test relative to the composite reference standard (CRS), …

Validation Of A Prognostic Nomogram For Locally Advanced Oropharyngeal Carcinoma Treated With Intensity-Modulated Radiotherapy With/Without Systemic Therapy, P. Bossi, R. Gili, S. Calza, L. Licitra, M. Maddalo, A. Bacigalupo, L. Belgioia, J. Cacicedo, N. Facchinetti, A. Garcia Castano, M. Oliva, P. Bonomo, G. Sanguineti, P. Franco, A. Argiris, A. Psyrri, E. Orlandi

Kimmel Cancer Center Faculty Papers

BACKGROUND: Head and neck squamous-cell carcinoma (HNSCC), particularly oropharyngeal cancer (OPC), exhibits diverse prognostic factors influenced by demographic and lifestyle variables. Prognostic nomograms, such as the one developed by Fakhry et al., incorporate clinical and biological markers to predict overall survival (OS) and progression-free survival (PFS) in OPC patients. However, their applicability to European populations remains unverified. This study aimed to externally validate Fakhry's prognostic nomogram in a large European cohort of locally advanced OPC patients treated with definitive intensity-modulated radiotherapy (IMRT) with or without systemic therapy.

METHODS: This is a retrospective external validation study conducted on 805 OPC patients …

Discriminative Accuracy Of Cha2ds2-Vasc Score, And Development Of Predictive Accuracy Model Using Machine Learning For Ischemic Stroke Risk In Cardiac Amyloidosis And Atrial Fibrillation, Waqas Ullah, Abhinav Nair, Eric Warner, Salman Zahid, Mansoor Rahman, Palwasha Khan, Indranee Rajapreyar, Sridhara S. Yaddanapudi, M. Chadi Alraies, Said Ashraf, Jeffery Van Hook, Yegeny Brailovsky

Department of Medicine Faculty Papers

BACKGROUND: CHA2DS2-VASc score in cardiac amyloidosis (CA) with atrial fibrillation (AF) is believed to underestimate ischemic stroke risk, necessitating a better predictive model.

METHODS: Data were obtained from the National Readmission Database (NRD). Outcomes between CA-AF and no-CA-AF were compared using multivariate regression analysis to calculate adjusted odds ratios (aORs). AutoScore, an interpretable machine learning framework, was used to develop a stroke risk prediction model, and its predictive accuracy was evaluated with an area under the curve (AUC) using the receiver operating characteristic analysis.

RESULTS: A total of 11,860,804 (CA-AF 22,687 (0.19%) and no-CA-AF 11,838,117) patients were identified from 2015 …

Comparison Of Anterior And Posterior Surgical Approaches For Cervical Ossification Of The Posterior Longitudinal Ligament Stratified By Spinal Levels: A Systematic Review And Meta-Analysis, Seyed Danial Alizadeh, Sepehr Khosravi, Farzin Farahbakhsh, Vali Baigi, Moein Khormali, Mohsen Hajiqasemi, Zahra Eskandari, Mahgol Sadat Hassan Zadeh Tabatabaei, Amirmahdi Khayyamfar, Mohammad-Rasoul Jalalifar, Sepehr Armaghan, Masoud Pourghahramani Koltapeh, Zahra Ghodsi, Michael G. Fehlings, Alex R. Vaccaro, Vafa Rahimi-Movaghar

Rothman Institute Papers

OBJECTIVE: To compare the outcomes of anterior and posterior surgical approaches for treating cervical ossification of the posterior longitudinal ligament across multiple spinal levels, including 1-2 spinal levels, ≥ 3 levels, or studies that operated on both spinal levels, called mixed spinal levels.

METHODS: A search strategy using pertinent keywords was employed in the MEDLINE, Embase, Scopus, and Web of Science databases. Data on Modified Japanese Orthopaedic Association (mJOA) scores, radiographic outcomes, and complications were extracted. A random-effects meta-analysis, subgroup meta-analysis, and sensitivity analysis were performed.

RESULTS: Among 13 included studies, the anterior approach was statistically associated with improved C2-C7 …

Apostel-R Recommendations For Reporting Retinal Optical Coherence Tomography Studies In Rodents, Frederike Cosima Oertel, Delia Cabrera Debuc, Peter A. Calabresi, Mei Chen, Christian Cordano, Michael Dietrich, Nicolas Feltgen, Oliver Gramlich, Ari J. Green, Janos Groh, Su-Chun Huang, Benjamin Knier, Thomas Korn, Letizia Leocani, Anat Loewenstein, Christian Van Oterendorp, Tunde Peto, Sven Schippling, Leopold Schmetterer, Steffen Schmitz-Valckenberg, Mathias W. Seeliger, Kenneth S. Shindler, Joel Schuman, Mustafa Sindi, Adnan Tufail, Jui-Kai Wang, Sebastian Wolf, Yuyi You, Martin Zinkernagel, Wolf Lagrèze, Philipp Albrecht

Department of Medicine Faculty Papers

BACKGROUND AND OBJECTIVES: Retinal optical coherence tomography (OCT) in rodent models has been used to longitudinally image retinal changes, to define end points for more costly or time-consuming experiments, and to better understand the pathophysiology underlying OCT findings in human diseases. No standardization of rodent OCT reporting currently exists. Here, we aim to establish consensus recommendation for reporting results from retinal OCT studies in rodents.

METHODS: Initial recommendations were developed based on the APOSTEL criteria for quantitative OCT reporting in humans by a core team. Using a modified Delphi process, an expert panel of rodent OCT researchers (N = 31) …

Performing Dual Glucose Clamp Experiments In Sedated Farm Swine: A Practical Method, Marc Torjman, Winston Hamilton, Katherine Dillon, Channy Loeum, Jeffrey Joseph

Department of Anesthesiology Faculty Papers

The hyperinsulinemic-euglycemic clamp technique is considered the gold standard for measuring insulin sensitivity in large animals. We developed a practical method for conducting concurrent glucose clamp experiments in a pair of sedated farm swine positioned in a sling. Descriptions of customized equipment and central venous access surgical procedures for blood collection are provided. Personnel functions are described for execution of the clamp protocol. A total of 24 hyperinsulinemic-euglycemic clamp studies were performed over 6 weeks. Infusaports remained functional for 1454 blood samples. There were three CSII catheter occlusions during bolus administration, and the swine showed no signs of infection or …

Implementing A Pap Smear Tracking Tool For Increased Compliance, Meghan Marie Madea Msn, Cnm, Whnp-Bc, Katherine Ferrell Fouquier Phd, Cnm, Facnm, Bobby Bellflower Dnsc, Nnp-Bc, Faan, Faanp, Fnap

Doctor of Nursing Practice Projects

Purpose/Background

The Papanicolaou “pap” smear screens for cervical cancer in women ages 21-65 with a cervix. Inconsistent locations for lab results lead to a decrease in provider efficiency, and patients are unaware of results or recommended follow-up. This quality improvement project implemented a tracking tool within the electronic medical record (EMR) in a busy midwifery clinic. The outcomes are the identification of patients overdue for pap smears, scheduling the procedure, recording of results, and patient notification with recommended follow-up.

Methods

A one-month chart review was performed of fifty gynecology patients within a midwifery clinic. Results of pap smears were located …

The Science Of Sound: Studying The Cognitive, Emotional, And Physiological Effects Of Frequency, Genre, And Music, Jett Yarborough

Senior Honors Theses

Music influences emotion, physiology, and cognition, yet little is known about how the frequency it is tuned to affects these influences. Prior research has shown that music tuned to 432 Hz can reduce stress, lower blood pressure, and improve sleep. My colleagues and I conducted two studies to investigate this. Our research found that music tuned to 432 Hz promotes a significant increase in memory retention and induces a state of focus and relaxation. These results suggest that shifting from the standard tuning frequency of 440 Hz to 432 Hz could have a profoundly positive impact on our daily lives. …

A Comparative Evaluation Of Two Subharmonic-Aided Pressure Estimation (Shape) Analysis Methods, Hailee Mayer, Priscilla Machado, Trang Vu, Annalisa Berzigotti, Jaume Bosch, Elton Dajti, Antonina Antonenko, Kirk Wallace, Flemming Forsberg

Department of Radiology Faculty Papers

Pressure measurement in clinical practice is a valuable tool for diagnostic evaluation, especially in diseases such as portal hypertension. Currently, portal pressures are measured by invasive hepatic vein catheterization, posing risks to patients, and limiting how often measurements can be obtained. Subharmonic-aided pressure estimation (SHAPE) is an ultrasound-based technique that leverages ultrasound contrast agents (UCAs) to estimate changes in hydrostatic pressure. UCAs act as nonlinear oscillators when exposed to high enough acoustic pressures (typically > 200 kPa) and produce significant energy components ranging from subharmonics to higher harmonics. Tissues do not generate significant subharmonic components, thus making it the optimal component …

Oral Tranexamic Acid Use For Melasma Is Not Associated With Thromboembolism: Findings From A Multicenter Propensity Score–Matched Electronic Health Record Cohort, Tyler Hernandez, Kayla Penny, Nicholas Culotta

School of Medicine Faculty Publications

No abstract provided.

Non-Invasive Detection Of Choroidal Melanoma Via Tear-Derived Protein Corona On Gold Nanoparticles: A Machine Learning Approach, Hakimeh Rakhshandeh, Ahmad Nasiraei, Hamid Riazi-Esfahani, Babak Masoomian, Fariba Ghassemi, Mojtaba Arjmand, Saeed Heidari Keshel, Fatemeh Atyabi, Rassoul Dinarvand

Wills Eye Hospital Papers

This study investigates the feasibility of using tear sample analysis, based on protein corona formation on gold nanoparticles combined with electrospray ionization mass spectrometry (ESI-MS) and machine learning techniques, as a non-invasive approach for the detection of choroidal melanoma. The aim is to assess whether protein-nanoparticle interactions can support early and reliable identification of this ocular condition. Tear samples were collected using Schirmer strips from six healthy individuals and six patients diagnosed with choroidal melanoma, with subsequent augmentation to 18 samples per group. Gold nanoparticles (AuNPs, ~ 20 nm) were synthesized via citrate reduction and incubated with tear samples to …