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Articles 1 - 30 of 91
Full-Text Articles in Tissues
Yk-4-250, A Synthetic Telmisartan-Tempol Conjugate: Crystal Structure Of A Stabilized Free Radical Containing An Angiotensin At₁ Receptor Inhibitor, Simon Friedrich, Yali Kong, Faik N. Musayev, Milton L. Brown, B. Frank Gupton
Yk-4-250, A Synthetic Telmisartan-Tempol Conjugate: Crystal Structure Of A Stabilized Free Radical Containing An Angiotensin At₁ Receptor Inhibitor, Simon Friedrich, Yali Kong, Faik N. Musayev, Milton L. Brown, B. Frank Gupton
Department of Biomedical and Translational Sciences Faculty Publications
We report the first crystal structure of the telmisartan-tempol conjugate 2,2,6,6-tetramethyl-1-(λ'-oxidaneyl)piperidin-4-yl 4'-[(1,7'-dimethyl-2'-propyl-1H,3'H-[2,5'-bibenzo[d]imidazol]-3'-yl)methyl]-[1,1'-biphenyl]-2-carboxylate free radical (YK-4-250, C₄₂H₄₆N₅O₃), a dual-function inhibitor designed to target both the angiotensin II type 1 receptor (AT₁R) and reactive oxygen species (ROS). Structural analysis reveals a unique crystal architecture in which the nitroxide radical is stabilized within a sterically protected environment while preserving the telmisartan pharmacophore essential for high-affinity receptor antagonism. YK-4-250 is a novel small-molecule conjugate of telmisartan and tempol that incorporates a catalytic stabilized nitroxide radical and was rationally designed to mitigate gastrointestinal acute radiation syndrome (GI-ARS).
Influence Of Motion Artifacts On Instantaneous Frequency Based Heart Rate Variability Of Arterial Pulse Signals Measured By A Tactile Sensor: An Analytical Study, Mamun Hasan, Zhili Hao
Influence Of Motion Artifacts On Instantaneous Frequency Based Heart Rate Variability Of Arterial Pulse Signals Measured By A Tactile Sensor: An Analytical Study, Mamun Hasan, Zhili Hao
Mechanical & Aerospace Engineering Faculty Publications
Objective: Heart rate variability (HRV), quantified via the instantaneous frequency (IF) of arterial pulse signals, is a key indicator of cardiovascular (CV) regulation. This study presents a theoretical and experimental investigation of how motion artifacts (MA) influence IF-and thus HRVmeasured with a tactile sensor, emphasizing underlying mechanisms rather than population-level validation. Approach: Building on a previously developed single-degree-of-freedom (SDOF) model of the tissue-contact-sensor (TCS) stack between the sensor and the artery, MA is represented as low-frequency baseline drift and time-varying system parameters (TVSP) of the TCS stack. Analytical expressions quantify the effect of MA on the IF of each harmonic …
Yk-4-250 Mitigates Gastrointestinal Radiation Syndrome And Promotes Overall Survival Following Partial Body Radiation Injury, Vidya P. Kumar, Yali Kong, Kan Wang, Asa R. Britton-Jenkins, Stanton Dulan, Landon L. Moore, Debra Saunders, Randal May, Rheal Towner, Sanchita P. Ghosh, Courtney W. Houchen, Milton L. Brown
Yk-4-250 Mitigates Gastrointestinal Radiation Syndrome And Promotes Overall Survival Following Partial Body Radiation Injury, Vidya P. Kumar, Yali Kong, Kan Wang, Asa R. Britton-Jenkins, Stanton Dulan, Landon L. Moore, Debra Saunders, Randal May, Rheal Towner, Sanchita P. Ghosh, Courtney W. Houchen, Milton L. Brown
Department of Biomedical and Translational Sciences Faculty Publications
Acute gastrointestinal radiation syndrome (GI-ARS) is a significant health threat following high-dose ionizing radiation (IR) exposure, leading to severe morbidity and mortality. The syndrome is characterized by gastrointestinal tissue damage caused by angiotensin II (Ang II) and reactive oxygen species (ROS), resulting in impaired GI function, systemic bacteremia, multi-organ failure, and eventual death. Dysregulation of the renin-angiotensin system (RAS) via Ang II exacerbates ROS production through activation of the Angiotensin II type 1 receptor (AT1R). This underscores the need for agents capable of both scavenging ROS and inhibiting AT1R activity. To address this, we developed YK-4-250, a Tempol-conjugated angiotensin receptor …
Self-Assembly Of Anti-Inflammatory Peptide Amphiphiles For Mucosal Health, Maria José Gómara, Ignacio Pérez-Pomeda, Ramon Pons, Paul Ziprin, Carolina Herrera, Isabel Haro
Self-Assembly Of Anti-Inflammatory Peptide Amphiphiles For Mucosal Health, Maria José Gómara, Ignacio Pérez-Pomeda, Ramon Pons, Paul Ziprin, Carolina Herrera, Isabel Haro
CONRAD Publications
Broad spectrum anti-inflammatory peptide amphiphiles (AIF-PAs) have been developed as an innovative strategy for the treatment of chronic mucosal inflammation and the prevention of HIV transmission. Novel lipopeptides based on two linear sequences of anti-inflammatory peptides were obtained by solid-phase peptide chemistry. In a pilot study, ex vivo exposure of colorectal tissue explants from Crohn's disease patients to AIF-PAs induced a downregulation of the proinflammatory profile. Furthermore, the HIV inhibitory potency of AIF-PAs was evaluated ex vivo in colorectal tissue explants, obtaining sub-micromolar IC₅₀ values. Characterization of AIF-PAs self-aggregation in aqueous solution revealed that the net charge distribution within the …
Outcomes Of Allogeneic Ocular Surface Stem Cell Transplantation, Albert Y. Cheung, Natalia Quiroz-Casian, Enrica Sarnicola, Gautam C. Ramanathan, Siddharth Nath, Edward J. Holland
Outcomes Of Allogeneic Ocular Surface Stem Cell Transplantation, Albert Y. Cheung, Natalia Quiroz-Casian, Enrica Sarnicola, Gautam C. Ramanathan, Siddharth Nath, Edward J. Holland
Department of Ophthalmology Faculty Publications
Allogeneic ocular surface stem cell transplantation (OSST) is an established therapeutic approach for limbal stem cell deficiency, utilizing techniques such as keratolimbal allograft (KLAL), living-related conjunctival limbal allograft (lr-CLAL), allogeneic cultivated limbal epithelial transplantation (allo-CLET), and allogeneic simple limbal epithelial transplantation (allo-SLET). This review synthesizes evidence from 35 studies encompassing 1, 268 eyes with at least 24 months of follow-up to evaluate intermediate- and long-term outcomes. Overall, OSST is associated with improvement in visual acuity and restoration of ocular surface stability, although success rates vary widely by technique, ranging from 13% to 87%. Outcomes appear to be influenced by the …
P38 Mapk Is Involved In Epigenetic Regulation Of Fibrotic Genes In Replication Induced Senescence In Lung Fibroblasts, Shan Zhu, Jennifer Q. Zhou, Kan Wang, Ming-Lei Guo, Yan Sanders
P38 Mapk Is Involved In Epigenetic Regulation Of Fibrotic Genes In Replication Induced Senescence In Lung Fibroblasts, Shan Zhu, Jennifer Q. Zhou, Kan Wang, Ming-Lei Guo, Yan Sanders
Department of Biomedical and Translational Sciences Faculty Publications
Fibroblast activation is essential for tissue repair following injury; however, prolonged activation drives pathological fibrosis. Idiopathic pulmonary fibrosis (IPF), a progressive and age-associated lung disease, is characterized by aberrant fibroblast activation, with increasing evidence implicating senescent and near-senescent fibroblasts in its pathogenesis. However, the underlying mechanisms remain poorly defined. In this study, we investigated whether histone modification is involved in TGF-β1 treated lung fibroblasts and contributes to the fibrotic phenotype. Human IMR90 lung fibroblasts at low and high population doubling levels (LPDL and HPDL), as well as primary IPF fibroblasts, were used in this study. In response to TGF-β1, both …
Upadacitinib For Recalcitrant Extraintestinal Crohn Disease, Avery H. Seward, Jeffrey P. Callen
Upadacitinib For Recalcitrant Extraintestinal Crohn Disease, Avery H. Seward, Jeffrey P. Callen
Department of Medicine Faculty Publications
[Introduction] Crohn disease is a chronic inflammatory bowel disease that affects the gastrointestinal tract from the mouth to the anus. Extra-intestinal manifestations of Crohn disease are common, with the skin being the most commonly involved site.¹ Cutaneous manifestations of Crohn include lesions that directly extend from the bowel to the skin, whereas extraintestinal Crohn disease involves sites that do not directly extend from the bowel.¹ Extraintestinal Crohn disease is often resistant to treatments and often does not parallel the activity of the bowel disease.¹ There have only been 3 documented cases of extraintestinal Crohn disease responding to upadacitinib.²,³ We describe …
Sage: Spatially Aware Gene Selection And Dual-View Embedding Fusion For Domain Identification In Spatial Transcriptomics, Yi He, Yunpei Xu, Liqing Ding, Hong-Dong Li, Yaohang Li, Shaokai Wang
Sage: Spatially Aware Gene Selection And Dual-View Embedding Fusion For Domain Identification In Spatial Transcriptomics, Yi He, Yunpei Xu, Liqing Ding, Hong-Dong Li, Yaohang Li, Shaokai Wang
Computer Science Faculty Publications
Despite enabling high-resolution mapping of gene expression within tissues, spatial transcriptomics (ST) still faces challenges in accurately segmenting spatial domains due to complex tissue architecture and limitations of current methods. Most approaches rely on local spatial priors, lack gene-level interpretability, and fall short in capturing structure-discriminative genes or long-range functional relationships, limiting their ability to resolve biologically meaningful architectures. We present Spatially Aware Gene selection and dual-view Embedding fusion (SAGE), a unified and reproducible framework for domain identification in spatial transcriptomics that combines topic-driven gene selection with dual-view embedding fusion to address these gaps. SAGE integrates non-negative matrix factorization (NMF)-based …
The Effect Of Neoadjuvant Chemoradiotherapy On Perioperative Outcomes In Rectal Cancer Patients Following Stoma Reversal-A Retrospective Cohort Analysis, Mary Junak, Rosemarie Turk, Mohammad Afaque Alam, Eli Thompson, David Schaub, Joseph Gunderson, Anesu S. Masango, Srikar Kollipara, Andrea Moreno, Daniom Tecle, Valentine N. Nfonsam
The Effect Of Neoadjuvant Chemoradiotherapy On Perioperative Outcomes In Rectal Cancer Patients Following Stoma Reversal-A Retrospective Cohort Analysis, Mary Junak, Rosemarie Turk, Mohammad Afaque Alam, Eli Thompson, David Schaub, Joseph Gunderson, Anesu S. Masango, Srikar Kollipara, Andrea Moreno, Daniom Tecle, Valentine N. Nfonsam
School of Medicine Faculty Publications
BACKGROUND: Anastomotic leak after reversal of an ostomy is a significant complication in rectal cancer patients. The effects of neoadjuvant chemoradiotherapy (NCRT) on outcomes following stoma reversal are not well established. The aim of our study was to evaluate the effect of NCRT on outcomes in rectal cancer patients following stoma reversal. METHODS: We performed a [2005-2012] retrospective cohort analysis of the American College of Surgeons-National Surgical Quality Improvement Program (ACS-NSQIP), including adult (≥18 years) rectal cancer patients who had elective stoma reversal. Patients were stratified into those who received NCRT and those who did not. Primary outcomes were anastomotic …
Mucosal Melanoma: Mechanisms Of Its Etiology, Progression, Resistance And Therapy, Sofie-Yasmin Hassan, Thomas W. Flanagan, Sarah-Lilly Hassan, Sybille Facca, Youssef Haikel, Mohamed Hassan
Mucosal Melanoma: Mechanisms Of Its Etiology, Progression, Resistance And Therapy, Sofie-Yasmin Hassan, Thomas W. Flanagan, Sarah-Lilly Hassan, Sybille Facca, Youssef Haikel, Mohamed Hassan
School of Graduate Studies Faculty Publications
Mucosal melanoma (MM) is a rare, aggressive cancer whose incidence has increased continuously over the years. This subtype of melanoma arises from melanocytes on hairless surfaces, typically in the respiratory tract, gastrointestinal (GI) tract, and urogenital tract. The most common sites of occurrence include the head and neck, the anorectal region, and the vulvovaginal region, while the rare sites of MM are the urinary tract and the upper and lower GI tract, including the esophagus, duodenum and the gallbladder. MM arises in melanocytes of the ectodermal mucosa that originate from neural crest cells and migrate through embryonic mesenchyme to their …
Trypanosoma Cruzi Infection-Induced Changes In Cardiac Microvascular Endothelial Cell Morphology And Function, Lyndsey N. Gisclair, Douglas A. Johnston
Trypanosoma Cruzi Infection-Induced Changes In Cardiac Microvascular Endothelial Cell Morphology And Function, Lyndsey N. Gisclair, Douglas A. Johnston
School of Graduate Studies Faculty Publications
Introduction. Six to seven million individuals are infected with Trypanosoma cruzi, the causative agent of Chagas disease. With 12,000 deaths annually, chronic Chagas disease remains a significant global health challenge due to persistent vector transmission, increasing non-vector transmission and limited therapeutic options. Chronic Chagas cardiomyopathy is a leading cause of morbidity and mortality, yet the underlying mechanisms remain poorly understood.Gap Statement. Since its initial description more than 100 years ago, research efforts into the cardiomyopathy found in chronic Chagas disease have primarily focused on the contributions of immune cells, cardiomyocytes and cardiac fibroblasts, leaving a significant gap in understanding the …
Complete Closure Of Chronic Ankle Ulcerations In The Presence Of Lymphadema With Use Of Adipose Stem Cell Injectable Allograft, A Case Report, Orlexia Thomas Dpm, Francois M. Lokenye Dpm, Jasmine Sheikh Bs, Lady Paula Dejesus Dpm, Facfas, Facpm, Dwsp
Complete Closure Of Chronic Ankle Ulcerations In The Presence Of Lymphadema With Use Of Adipose Stem Cell Injectable Allograft, A Case Report, Orlexia Thomas Dpm, Francois M. Lokenye Dpm, Jasmine Sheikh Bs, Lady Paula Dejesus Dpm, Facfas, Facpm, Dwsp
Posters
This case illustrates the promising role of adipose stem cell injectable allografts in the management of complex chronic wounds, particularly in patients presenting with lymphedema and fat pad atrophy.
Adipose Injectable Filler With Use Of Meshed Dermal Matrix And Porcine Urinary Bladder Matrix For The Management Of A Complex Achilles Wound, Francois M. Lokenye Dpm, Orlexia Thomas Dpm, Mariam Kamil Bs, Lady Paula Dejesus Dpm, Facfas, Facpm, Dwsp
Adipose Injectable Filler With Use Of Meshed Dermal Matrix And Porcine Urinary Bladder Matrix For The Management Of A Complex Achilles Wound, Francois M. Lokenye Dpm, Orlexia Thomas Dpm, Mariam Kamil Bs, Lady Paula Dejesus Dpm, Facfas, Facpm, Dwsp
Posters
Chronic Achilles wounds present a significant clinical challenge due to limited vascularity, high mechanical stress, and the complex anatomy of the posterior lower leg.
Regenerative medicine offers a promising alternative to traditional wound management through the use of advanced biologic materials.
This case highlights a novel approach utilizing a combination of adipose-derived injectable filler, acellular dermal matrix, and porcine urinary bladder matrix to enhance tissue regeneration, provide structural support, and promote wound healing.
Investigating Mercury Contamination In Urban Fish: Atomic Absorption Spectroscopy And Histological Analysis For Environmental And Human Health, Indy L. Cockrill, Ross Andrew
Investigating Mercury Contamination In Urban Fish: Atomic Absorption Spectroscopy And Histological Analysis For Environmental And Human Health, Indy L. Cockrill, Ross Andrew
SPARK Symposium Presentations
Mercury contamination in aquatic ecosystems is a pressing environmental and public health concern, particularly in urban areas where industrial runoff and wastewater contribute to heavy metal accumulation. This study investigates mercury presence in fish from Richland Creek in Nashville, TN, by analyzing histological changes in liver and muscle tissues. Mercury bioaccumulates in aquatic food chains, potentially leading to physiological damage in fish and posing health risks to humans who consume contaminated seafood. While prior research has established mercury’s toxic effects, there is a need for localized studies assessing its presence in urban waterways. The hope is to find histological abnormalities …
Spontaneous Distal Middle Cerebral Artery Aneurysm In A Young Male With Full Mutation Of The Fragile X Syndrome With A High-Functioning Phenotype: Illustrative Case, Eleni Papadopoulos, Anna Abrimian, Hekmat Zarzour, Randi J Hagerman, Richard F Schmidt
Spontaneous Distal Middle Cerebral Artery Aneurysm In A Young Male With Full Mutation Of The Fragile X Syndrome With A High-Functioning Phenotype: Illustrative Case, Eleni Papadopoulos, Anna Abrimian, Hekmat Zarzour, Randi J Hagerman, Richard F Schmidt
Rowan-Virtua School of Osteopathic Medicine Departmental Research
BACKGROUND: Fragile X syndrome (FXS) is a genetic disorder that typically presents with neurodevelopmental abnormalities. Patients with FXS can present with signs and symptoms of connective tissue disorder (CTD) and occasionally with vascular disease. However, cerebrovascular disease is not well documented in these patients, and it is unknown whether there is a direct link between abnormal levels of fragile X protein (FMRP) and its mRNA.
OBSERVATIONS: Here, the authors present a rare case of an adult male with full mutation FXS of a high-functioning phenotype who presented with syncope, and on further evaluation, a fusiform dissecting aneurysm of the distal …
Synovial Chondromatosis: Unraveling The Pathogenesis, Diagnosis, And Management Of An Atypical Benign Tumor, Francois M. Lokenye Dpm, Narayan Athira Md
Synovial Chondromatosis: Unraveling The Pathogenesis, Diagnosis, And Management Of An Atypical Benign Tumor, Francois M. Lokenye Dpm, Narayan Athira Md
Oral Presentations
No abstract provided.
Epigenetic Regulation In Fibrosis, Qingping Wei, Xiaoru Hu, Yan Sanders
Epigenetic Regulation In Fibrosis, Qingping Wei, Xiaoru Hu, Yan Sanders
Department of Biomedical and Translational Sciences Faculty Publications
[Introduction] Fibrosis is one of the pathological conditions underlying the progression of numerous chronic diseases, and it contributes substantially to morbidity and mortality worldwide. Increasing amounts of evidence indicate that epigenetic mechanisms—including DNA methylation, histone modifications, RNA modifications, and non-coding RNAs—play pivotal roles in epithelial cell injury and maladaptive tissue repair, inflammatory cell and fibroblast activation, and extracellular matrix remodeling and accumulation. Compared to genetic alterations, epigenetic changes are relatively reversible, positioning them as promising therapeutic targets. The articles collected in this Research Topic highlight recent advances in understanding how epigenetic regulation shapes fibrotic processes across multiple organ systems and …
Traction Force Microscopy Using An Epifluorescence Microscope: Experimental Considerations And Caveats, Zaria Booth, Mazen Mezher, Rudra Patel, Venkat Maruthamuthu
Traction Force Microscopy Using An Epifluorescence Microscope: Experimental Considerations And Caveats, Zaria Booth, Mazen Mezher, Rudra Patel, Venkat Maruthamuthu
Mechanical & Aerospace Engineering Faculty Publications
Forces exerted by cells due to their internal contractility play fundamental roles in a host of processes, including adhesion, migration, survival and differentiation. Traction force microscopy (TFM) enables the determination of forces exerted by cells or cell collectives on their environment, which is typically taken to be an extra-cellular matrix (ECM)-coated substrate. Sample preparation for TFM involves the plating of cells onto an environment embedded with fiducial markers. The imaging of these fiducial markers in the presence and absence of the cells then enables calculation of the displacement of localized regions of the environment, and, consequently, the spatial distribution of …
A Rare Case Of Metastatic Myxofibrosarcoma To The Right Colon, Timothy K. Farrell, Matthew A. Carnell, Vincent J. Obias
A Rare Case Of Metastatic Myxofibrosarcoma To The Right Colon, Timothy K. Farrell, Matthew A. Carnell, Vincent J. Obias
Department Surgery Faculty Publications
Myxofibrosarcoma (MFS) is a common soft tissue sarcoma typically arising in the extremities of older adults. Metastatic spread usually involves the lungs, lymph nodes, or bone. We describe a rare case of metastatic MFS to the colon in a 76-year-old man, three years after surgical excision and radiation treatment for a left flank primary tumor. The patient presented with symptoms of obstipation and was found to have a 4 cm cecal mass confirmed by imaging and colonoscopy. Biopsy and surgical pathology confirmed metastatic MFS. A right colectomy was performed without complication. This case highlights an uncommon site of MFS metastasis …
3d Bioprinting Technology Innovation In Female Reproductive System, Siyao Chen, Tongxin Wang, Jiaqi Chen, Mingxing Sui, Luyao Wang, Xueyu Zhao, Jianqiao Sun, Yingli Lu
3d Bioprinting Technology Innovation In Female Reproductive System, Siyao Chen, Tongxin Wang, Jiaqi Chen, Mingxing Sui, Luyao Wang, Xueyu Zhao, Jianqiao Sun, Yingli Lu
Department of Obstetrics & Gynecology Faculty Publications
Several diseases affect the female reproductive system, and both disease factors and treatments impact its integrity and function. Consequently, understanding the mechanisms of disease occurrence and exploring treatment methods are key research focuses in obstetrics and gynecology. However, constructing accurate disease models requires a microenvironment closely resembling the human body, and current animal models and 2D in vitro cell models fall short in this regard. Thus, innovative in vitro female reproductive system models are urgently needed. Additionally, female reproductive system diseases often cause tissue loss, yet effective tissue repair and regeneration have long been a bottleneck in the medical field. …
Discordance Between Profound Hyperprolactinemia And Hormone Immunostaining In A Pit1-Positive Pituitary Neuroendocrine Tumor. A Rare Case Report, Aneela Arif, Radwa Osman
Discordance Between Profound Hyperprolactinemia And Hormone Immunostaining In A Pit1-Positive Pituitary Neuroendocrine Tumor. A Rare Case Report, Aneela Arif, Radwa Osman
Department of Medicine Faculty Publications
We present a rare case of a functioning macroprolactinoma with negative hormone immunohistochemistry (IHC) but positive PIT1 transcription factor staining. This case highlights the diagnostic value of transcription factor IHC when clinical and biochemical findings are discordant with hormone staining. An 18-year-old female with unremarkable medical history presented with high prolactin levels, galactorrhea, and amenorrhea for 6 months. She was not on any medications, and was not sexually active, or trying to conceive. Prolactin levels were markedly elevated (462, 1,067, and 1,282 ng/mL). MRI showed a 13×12×14 mm T2-hyperintense, slightly cystic pituitary macroadenoma with suprasellar extension and optic chiasm compression, …
Micro/Nanoplastics And Cancer: Focus On Gastrointestinal Malignancies - A Narrative Review, Sana Rabeeah, Priyata Dutta, Ahmad Mahdi, Alejandra Vargas, Edward C. Oldfield, David A. Johnson
Micro/Nanoplastics And Cancer: Focus On Gastrointestinal Malignancies - A Narrative Review, Sana Rabeeah, Priyata Dutta, Ahmad Mahdi, Alejandra Vargas, Edward C. Oldfield, David A. Johnson
Department of Medicine Faculty Publications
Micro- and nanoplastics (MNPs) are plastic particles smaller than 5 mm and 1 μm, respectively, and are emerging environmental pollutants with growing implications for human health. These particles stem from either 'primary sources', such as intentionally manufactured microbeads and industrial abrasives, or 'secondary sources', where larger plastic items break down into smaller fragments over time. Human exposure primarily occurs through ingestion and inhalation, with contaminated seafood and plastic-laden food packaging representing key routes of entry. Once ingested, MNPs can cross the intestinal barrier, accumulate in gastrointestinal (GI) tissues, and trigger biological responses. Mechanistic studies reveal that MNPs induce oxidative stress, …
Differential Analysis Of The Impact Of Lesions’ Location On Clinical And Radiological Outcomes After The Implantation Of A Novel Aragonite-Based Scaffold To Treat Knee Cartilage Defects, Pietro Conte, Giuseppe Anzillotti, Dennis C. Crawford, Vinod Dasa, David C. Flanigan, William E. Nordt, Jason M. Scopp, Robert J. Meislin, Eric J. Strauss, Sabrina M. Strickland, Gennaro Fiorentino, Christian Lattermann
Differential Analysis Of The Impact Of Lesions’ Location On Clinical And Radiological Outcomes After The Implantation Of A Novel Aragonite-Based Scaffold To Treat Knee Cartilage Defects, Pietro Conte, Giuseppe Anzillotti, Dennis C. Crawford, Vinod Dasa, David C. Flanigan, William E. Nordt, Jason M. Scopp, Robert J. Meislin, Eric J. Strauss, Sabrina M. Strickland, Gennaro Fiorentino, Christian Lattermann
School of Medicine Faculty Publications
Purpose: There is limited comparative evidence on patient outcomes following cartilage repair in various knee compartments. The aim of this study was to compare clinical and imaging outcomes after treating cartilage defects in femoral condyles and trochlea with either an aragonite-based scaffold or surgical standard of care (SSoC, i.e., debridement/microfractures) in a large multicentre randomized controlled trial. Methods: 247 patients with up to three knee joint surface lesions (ICRS grade IIIa or above) in the femoral condyles, trochlea or both (“mixed”), were enrolled and randomized to surgery with either a cell-free aragonite scaffold or SSoC. Patients were followed for up …
A Cytoarchitectural Analysis Of The Rat Amygdala In Ultrathin Serial Sections, Katrina Schneider
A Cytoarchitectural Analysis Of The Rat Amygdala In Ultrathin Serial Sections, Katrina Schneider
Honors Scholar Theses
This study delves into the cellular composition and functional dynamics of the lateral amygdala (LA), a crucial brain region implicated in emotional and auditory processing/learning. Utilizing IHC, ultrathin serial sectioning (Ultraplex Method), and RNAscope, distinct cell types are characterized within the LA based on calcium-binding proteins (CBPs) and inhibitory markers such as GABA. Despite a modest sample size, a diverse array of cell types are identified, with calbindin-positive neurons prominently emerging in inhibitory cells. Notably, GABA intensity varies depending on cell identity and marker colocalization, hinting at complex regulatory mechanisms involving GABAergic signaling and CBPs. Analysis of vesicular glutamate transporter …
A Novel Sequential Compression Appliance To Reduce Scarring Of The Face, Michelle N. Dwertman, Henry B. Huson
A Novel Sequential Compression Appliance To Reduce Scarring Of The Face, Michelle N. Dwertman, Henry B. Huson
School of Medicine Faculty Publications
56th Annual Meeting of the American Burn Association, ABA 2024; April 9 - 12, 2024, Chicago, IL
Diagnostic Accuracy Of Intraoperative Frozen Section For Margin Evaluation Of Oral Cavity Squamous Cell Carcinoma, Javaria P. Ali, Bakhtawar Allauddin Mallick, Khushbakht Rashid, Umair Arshad Malik, Atif Ali Hashmi, Shamail Zia, Muhammad Irfan, Amir Khan, Naveen Faridi
Diagnostic Accuracy Of Intraoperative Frozen Section For Margin Evaluation Of Oral Cavity Squamous Cell Carcinoma, Javaria P. Ali, Bakhtawar Allauddin Mallick, Khushbakht Rashid, Umair Arshad Malik, Atif Ali Hashmi, Shamail Zia, Muhammad Irfan, Amir Khan, Naveen Faridi
Section of Internal Medicine
Objectives: Intraoperative frozen-section evaluation is a valuable technique for detecting positive margins intraoperatively for oral squamous cell carcinoma. We conducted this study to determine the diagnostic accuracy of frozen section in detecting margin status and the effect of tumor grade and stage on diagnostic accuracy.
Results: A total of 251 biopsy-proven cases of oral squamous cell carcinoma were included in this study. The tissue specimen resected during surgery was sent to the laboratory for frozen section evaluation. The frozen section results were then compared with the permanent section results to determine the sensitivity, specificity, positive predictive value, negative predictive value, …
Common Heart Failure With Preserved Ejection Fraction Animal Models Yield Disparate Myofibril Mechanics, Axel J. Fenwick, Vivek P. Jani, D. Brian Foster, Thomas E. Sharp, Traci T. Goodchild, Kyle Lapenna, Jake E. Doiron, David J. Lefer, Joseph A. Hill, David A. Kass, Anthony Cammarato
Common Heart Failure With Preserved Ejection Fraction Animal Models Yield Disparate Myofibril Mechanics, Axel J. Fenwick, Vivek P. Jani, D. Brian Foster, Thomas E. Sharp, Traci T. Goodchild, Kyle Lapenna, Jake E. Doiron, David J. Lefer, Joseph A. Hill, David A. Kass, Anthony Cammarato
School of Medicine Faculty Publications
No abstract provided.
Development Of An Anisotropic Hyperelastic Material Model For Porcine Colorectal Tissues, Youssef Fahmy, Mohamed B. Trabia, Brian Ward, Lucas Gallup, Mary Froehlich
Development Of An Anisotropic Hyperelastic Material Model For Porcine Colorectal Tissues, Youssef Fahmy, Mohamed B. Trabia, Brian Ward, Lucas Gallup, Mary Froehlich
Mechanical Engineering Faculty Research
Many colonic surgeries include colorectal anastomoses whose leaks may be life-threatening, affecting thousands of patients annually. Various studies propose that mechanical interaction between the staples and neighboring tissues may play an important role in anastomotic leakage. Therefore, understanding the mechanical behavior of colorectal tissue is essential to characterizing the reasons for this type of failure. So far, experimental data characterizing the mechanical properties of colorectal tissue have been few and inconsistent, which has significantly limited understanding their behavior. This research proposes an approach to developing an anisotropic hyperelastic material model for colorectal tissues based on uniaxial testing of freshly harvested …
St-Elevation In Avr With Diffuse St-Segment Depression: Need For Urgent Catheterization?, Bruce M. Lo, Megyn K. Christensen, Katherine E. Schaffer, Theodore J. Tzavaras
St-Elevation In Avr With Diffuse St-Segment Depression: Need For Urgent Catheterization?, Bruce M. Lo, Megyn K. Christensen, Katherine E. Schaffer, Theodore J. Tzavaras
Department of Emergency Medicine Faculty Publications
Case Presentation: A 33 year old female with a history of antiphospholipid syndrome presented with exertional chest pain and ST-elevation in aVR with diffuse ST-depression. An emergent catheterization was performed which showed an isolated 99% stenosis in the left main coronary artery. The remaining coronary arteries were without any stenosis. Successful stent placement was performed, and the patient was discharged without complications.
Discussion: Previous guidelines suggested that ST-elevation with diffuse ST-depression should be treated as a STEMI-equivalent involving the left-main or proximal left anterior descending coronary artery. However recent data suggests that the majority of these cases may not involve …
Image-Based Multiplex Immune Profiling Of Cancer Tissues: Translational Implications. A Report Of The International Immuno-Oncology Biomarker Working Group On Breast Cancer., Shahin Sayed, Chowdhury Arif Jahangir, David Page, Glenn Broeckx, Claudia Gonzalez, Caoimbhe Burke, Clodagh Murphy, Jorge Reis-Filho, Amy Ly, Paul Harms
Image-Based Multiplex Immune Profiling Of Cancer Tissues: Translational Implications. A Report Of The International Immuno-Oncology Biomarker Working Group On Breast Cancer., Shahin Sayed, Chowdhury Arif Jahangir, David Page, Glenn Broeckx, Claudia Gonzalez, Caoimbhe Burke, Clodagh Murphy, Jorge Reis-Filho, Amy Ly, Paul Harms
Pathology, East Africa
Recent advances in thefield of immuno-oncology have brought transformative changes in the management ofcancer patients. The immune profile of tumours has been found to have key value in predicting disease prognosis andtreatment response in various cancers. Multiplex immunohistochemistry and immunofluorescence have emerged aspotent tools for the simultaneous detection of multiple protein biomarkers in a single tissue section, therebyexpanding opportunities for molecular and immune profiling while preserving tissue samples. By establishing thephenotype of individual tumour cells when distributed within a mixed cell population, the identification of clinicallyrelevant biomarkers with high-throughput multiplex immunophenotyping of tumour samples has great potential toguide appropriate treatment …