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Human Hypofunctional Ncf1 Variants Promote Pulmonary Fibrosis In The Bleomycin-Induced Mouse Model And Patients With Systemic Sclerosis Via Expansion Of Spphuman Hypofunctional Ncf1 Variants Promote Pulmonary Fibrosis In The Bleomycin-Induced Mouse Model And Systemic Sclerosis Patients Via Expansion Of Spp1+ Monocytes-Derived Macrophages, Xinran Yuan, Xiaodong Qin, Kenji Takemoto, Jian Zhao, Matthew Sanderson, Xue Xu, Yu Zhang, Kristi L Helke, Bethany Jacobs Wolf, Joel M Guthridge, Judith A James, Xiaodong Zhou, Shervin Assassi, Carol Feghali-Bostwick, Dandan Wang, Lingyun Sun, Betty P Tsao Feb 2025

Human Hypofunctional Ncf1 Variants Promote Pulmonary Fibrosis In The Bleomycin-Induced Mouse Model And Patients With Systemic Sclerosis Via Expansion Of Spphuman Hypofunctional Ncf1 Variants Promote Pulmonary Fibrosis In The Bleomycin-Induced Mouse Model And Systemic Sclerosis Patients Via Expansion Of Spp1+ Monocytes-Derived Macrophages, Xinran Yuan, Xiaodong Qin, Kenji Takemoto, Jian Zhao, Matthew Sanderson, Xue Xu, Yu Zhang, Kristi L Helke, Bethany Jacobs Wolf, Joel M Guthridge, Judith A James, Xiaodong Zhou, Shervin Assassi, Carol Feghali-Bostwick, Dandan Wang, Lingyun Sun, Betty P Tsao

Faculty, Staff and Student Publications

Objective: We assessed the role of a systemic lupus erythematosus causal hypofunctional variant, neutrophil cytosolic factor 1 (NCF1)-p.Arg90His (p.R90H) substitution, in systemic sclerosis (SSc).

Methods: Association of NCF1-H90 with SSc was performed in case-control cohorts, bleomycin (BLM)-treated Ncf1-R90 C57BL/6 wildtype and Ncf1-H90 knock-in (KI) littermates. Peripheral blood mononuclear cell (PBMC) subsets were analysed by cytometry by time-of-flight.

Results: The NCF1-H90 allele is associated with risk for diffuse cutaneous SSc (dcSSc) in Chinese and European Americans, and lung fibrosis in Chinese patients with SSc (OR=2.09, p=7.96E-10). Low copy number of NCF1 associated with lung fibrosis in European Americans (OR=4.33, p=2.60E-2). BLM-treated …


Transcriptome Size Matters For Single-Cell Rna-Seq Normalization And Bulk Deconvolution, Songjian Lu, Jiyuan Yang, Lei Yan, Jingjing Liu, Judy Jiaru Wang, Rhea Jain, Jiyang Yu Feb 2025

Transcriptome Size Matters For Single-Cell Rna-Seq Normalization And Bulk Deconvolution, Songjian Lu, Jiyuan Yang, Lei Yan, Jingjing Liu, Judy Jiaru Wang, Rhea Jain, Jiyang Yu

Faculty, Staff and Student Publications

The variation of transcriptome size across cell types significantly impacts single-cell RNA sequencing (scRNA-seq) data normalization and bulk RNA-seq cellular deconvolution, yet this intrinsic feature is often overlooked. Here we introduce ReDeconv, a computational algorithm that incorporates transcriptome size into scRNA-seq normalization and bulk deconvolution. ReDeconv introduces a scRNA-seq normalization approach, Count based on Linearized Transcriptome Size (CLTS), which corrects differential expressed genes typically misidentified by standard count per 10 K normalization, as confirmed by orthogonal validations. By maintaining transcriptome size variation, CLTS-normalized scRNA-seq enhances the accuracy of bulk deconvolution. Additionally, ReDeconv mitigates gene length effects and models expression variances, …


Hemodynamic Response Of The Aortic Valve During Dobutamine Onset Then Progressive Aortic Banding, Rob Eerdekens, Philipos K Gebremedhin, Daniel T Johnson, Richard L Kirkeeide, Gretchen L Howe, Richard W Smalling, K Lance Gould, Pim A L Tonino, Nils P Johnson Feb 2025

Hemodynamic Response Of The Aortic Valve During Dobutamine Onset Then Progressive Aortic Banding, Rob Eerdekens, Philipos K Gebremedhin, Daniel T Johnson, Richard L Kirkeeide, Gretchen L Howe, Richard W Smalling, K Lance Gould, Pim A L Tonino, Nils P Johnson

Faculty, Staff and Student Publications

An increasing number of procedures over the past two decades for aortic stenosis (AS) reflects the combination of an aging population and less invasive transcatheter options. As a result, the hemodynamics of the aortic valve (AV) have gained renewed interest to understand its behavior and to optimize patient selection. We studied the hemodynamic relationship between pressure loss (ΔP) and transvalvular flow (Q) of the normal AV as well as the impact of a variable supravalvular stenosis. Our mechanistic study included 11 healthy swine monitored during dobutamine stress and followed by acute aortic banding to simulate AS. Hemodynamics were continuously recorded, …


Molecular Profiling Of Bladder Cancer Xenografts Defines Relevant Molecular Subtypes And Provides A Resource For Biomarker Discovery, Sharada Mokkapati, Ganiraju Manyam, Alexis R Steinmetz, Côme Tholomier, Alberto Martini, Woonyoung Choi, Bogdon Czerniak, Byron H Lee, Colin P Dinney, David J Mcconkey Feb 2025

Molecular Profiling Of Bladder Cancer Xenografts Defines Relevant Molecular Subtypes And Provides A Resource For Biomarker Discovery, Sharada Mokkapati, Ganiraju Manyam, Alexis R Steinmetz, Côme Tholomier, Alberto Martini, Woonyoung Choi, Bogdon Czerniak, Byron H Lee, Colin P Dinney, David J Mcconkey

Faculty, Staff and Student Publications

Bladder cancer (BLCA) genomic profiling has identified molecular subtypes with distinct clinical characteristics and variable sensitivities to frontline therapy. BLCAs can be categorized into luminal or basal subtypes based on their gene expression. We comprehensively characterized nine human BLCA cell lines (UC3, UC6, UC9, UC13, UC14, T24, SCaBER, RT4V6 and RT112) into molecular subtypes using orthotopic xenograft models. Patient-derived, luciferase-tagged BLCA cell lines were cultured in vitro and engrafted into bladders of NSG mice. Tumor growth was monitored using bioluminescence imaging and mRNA-based molecular classification was used to characterize xenografts into molecular subtypes. RNAseq analysis and basal, luminal, and epithelial-mesenchymal …


The Metabolic Basis Of Cancer-Related Fatigue, Robert Dantzer, Brandon Chelette, Elisabeth G Vichaya, A Phillip West, Aaron Grossberg Feb 2025

The Metabolic Basis Of Cancer-Related Fatigue, Robert Dantzer, Brandon Chelette, Elisabeth G Vichaya, A Phillip West, Aaron Grossberg

Faculty, Staff and Student Publications

Although we are all familiar with the sensation of fatigue, there are still profound divergences on what it represents and its mechanisms. Fatigue can take various forms depending on the condition in which it develops. Cancer-related fatigue is considered a symptom of exhaustion that is often present at the time of diagnosis, increases in intensity during cancer therapy, and does not always recede after completion of treatment. It is usually attributed to the inflammation induced by damage-associated molecular patterns released by tumor cells during cancer progression and in response to its treatment. In this review, we argue that it is …


Hsp90 Inhibitor Auy922 Suppresses Tumor Growth And Modulates Immune Response Through Yap1-Tead Pathway Inhibition In Gastric Cancer, Katsuhiro Yoshimura, Gengyi Zou, Yibo Fan, Kohei Yamashita, Lingzhi Wang, Jingjing Wu, Ruiping Wang, Shan Shao, Ailing W Scott, Jiankang Jin, Melissa Pool Pizzi, Xiaodan Yao, Calena-Abel Brown, Linghua Wang, Qiong Gan, Rebecca E Waters, Feng Yin, Shumei Song, Shilpa S Dhar, Jaffer A Ajani Feb 2025

Hsp90 Inhibitor Auy922 Suppresses Tumor Growth And Modulates Immune Response Through Yap1-Tead Pathway Inhibition In Gastric Cancer, Katsuhiro Yoshimura, Gengyi Zou, Yibo Fan, Kohei Yamashita, Lingzhi Wang, Jingjing Wu, Ruiping Wang, Shan Shao, Ailing W Scott, Jiankang Jin, Melissa Pool Pizzi, Xiaodan Yao, Calena-Abel Brown, Linghua Wang, Qiong Gan, Rebecca E Waters, Feng Yin, Shumei Song, Shilpa S Dhar, Jaffer A Ajani

Faculty, Staff and Student Publications

Heat shock protein 90 (HSP90), a vital chaperone involved in the folding and stabilization of various cellular proteins, regulates key functions in many tumor cells. In the context of gastric adenocarcinoma (GAC), where HSP90's role remains largely unexplored, we aimed to investigate the significance of HSP90 inhibitor, AUY922, in regulating the YAP1/TEAD pathway and its association with the tumor immune microenvironment (TME). Our results showed that AUY922 effectively inhibited GAC aggressiveness in both the invitro and invivo models, induced apoptosis, and cell-cycle arrest. Various functional assays elucidated that AUY922 potently inhibited the expression and interaction among YAP1/TEAD and HSP90, resulting …


Adipose Tissue Deficiency Impairs Transient Lipid Accumulation And Delays Liver Regeneration Following Partial Hepatectomy In Male Seipin Knockout Mice, Qianqian Dong, Ziwei Liu, Yidan Ma, Xin Chen, Xiaowei Wang, Jinye Tang, Kexin Ma, Chenxi Liang, Mengyu Wang, Xiaoqin Wu, Yang Liu, Yaru Zhou, Hongyuan Yang, Mingming Gao Feb 2025

Adipose Tissue Deficiency Impairs Transient Lipid Accumulation And Delays Liver Regeneration Following Partial Hepatectomy In Male Seipin Knockout Mice, Qianqian Dong, Ziwei Liu, Yidan Ma, Xin Chen, Xiaowei Wang, Jinye Tang, Kexin Ma, Chenxi Liang, Mengyu Wang, Xiaoqin Wu, Yang Liu, Yaru Zhou, Hongyuan Yang, Mingming Gao

Faculty, Staff and Student Publications

Background: Liver diseases pose significant health challenges, underscoring the importance of understanding liver regeneration mechanisms. Systemic adipose tissue is thought to be a primary source of lipids and energy during this process; however, empirical data on the effects of adipose tissue deficiency are limited. This study investigates the role of adipose tissue in liver regeneration, focusing on transient regeneration-associated steatosis (TRAS) and hepatocyte proliferation using a Seipin knockout mouse model that mimics severe human lipodystrophy. Additionally, the study explores therapeutic strategies through adipose tissue transplantation.

Methods: Male Seipin knockout (Seipin-/-) and wild-type (WT) mice underwent 2/3 partial hepatectomy (PHx). Liver …


Psychiatric Manifestations Of Encephalitis, Paris Bean, Ashley Heck, Ralph Habis, Swathi Sowmitran, Zoe Cartaina, Rajesh Gupta, John Probasco, Rodrigo Hasbun, Arun Venkatesan Feb 2025

Psychiatric Manifestations Of Encephalitis, Paris Bean, Ashley Heck, Ralph Habis, Swathi Sowmitran, Zoe Cartaina, Rajesh Gupta, John Probasco, Rodrigo Hasbun, Arun Venkatesan

Faculty, Staff and Student Publications

Objective: Encephalitis is a serious and potentially life-threatening condition of infectious or autoimmune cause. We aim to characterize the frequency and clinical spectrum of presenting psychiatric symptoms in encephalitis in order to inform earlier recognition and initiation of treatment.

Methods: This was a retrospective study of adult patients who met the 2013 International Encephalitis Consortium (IEC) and/or 2016 Graus criteria between February 2005 and February 2023. The study included two hospital systems in Houston, Texas, and Baltimore, Maryland and included a total of 642 patients. Psychiatric manifestations were grouped into five high-level categories: behavior, psychosis, mood, sleep disturbances, and catatonia. …


Protein Arginine Methyltransferases As Regulators Of Cellular Stress, Julia Zaccarelli-Magalhães, Cristiane Teresinha Citadin, Julia Langman, Drew James Smith, Luiz Henrique Matuguma, Hung Wen Lin, Mariana Sayuri Berto Udo Feb 2025

Protein Arginine Methyltransferases As Regulators Of Cellular Stress, Julia Zaccarelli-Magalhães, Cristiane Teresinha Citadin, Julia Langman, Drew James Smith, Luiz Henrique Matuguma, Hung Wen Lin, Mariana Sayuri Berto Udo

Faculty, Staff and Student Publications

Arginine modification can be a "switch" to regulate DNA transcription and a post-translational modification via methylation of a variety of cellular targets involved in signal transduction, gene transcription, DNA repair, and mRNA alterations. This consequently can turn downstream biological effectors "on" and "off". Arginine methylation is catalyzed by protein arginine methyltransferases (PRMTs 1-9) in both the nucleus and cytoplasm, and is thought to be involved in many disease processes. However, PRMTs have not been well-documented in the brain and their function as it relates to metabolism, circulation, functional learning and memory are understudied. In this review, we provide a comprehensive …


All Three Supersystems-Nervous, Vascular, And Immune-Contribute To The Cortical Infarcts After Subarachnoid Hemorrhage, Jens P Dreier, Alexander Joerk, Hiroki Uchikawa, Viktor Horst, Coline L Lemale, Helena Radbruch, Devin W Mcbride, Peter Vajkoczy, Ulf C Schneider, Ran Xu Feb 2025

All Three Supersystems-Nervous, Vascular, And Immune-Contribute To The Cortical Infarcts After Subarachnoid Hemorrhage, Jens P Dreier, Alexander Joerk, Hiroki Uchikawa, Viktor Horst, Coline L Lemale, Helena Radbruch, Devin W Mcbride, Peter Vajkoczy, Ulf C Schneider, Ran Xu

Faculty, Staff and Student Publications

The recently published DISCHARGE-1 trial supports the observations of earlier autopsy and neuroimaging studies that almost 70% of all focal brain damage after aneurysmal subarachnoid hemorrhage are anemic infarcts of the cortex, often also affecting the white matter immediately below. The infarcts are not limited by the usual vascular territories. About two-fifths of the ischemic damage occurs within ~ 48 h; the remaining three-fifths are delayed (within ~ 3 weeks). Using neuromonitoring technology in combination with longitudinal neuroimaging, the entire sequence of both early and delayed cortical infarct development after subarachnoid hemorrhage has recently been recorded in patients. Characteristically, cortical …


The Dynamics Of Tubulogenesis In Development And Disease, Adrian Romero, Brandy L Walker, Vanja Krneta-Stankic, Kamryn Gerner-Mauro, Lydia Youmans, Rachel K Miller Feb 2025

The Dynamics Of Tubulogenesis In Development And Disease, Adrian Romero, Brandy L Walker, Vanja Krneta-Stankic, Kamryn Gerner-Mauro, Lydia Youmans, Rachel K Miller

Faculty, Staff and Student Publications

Tubes are crucial for the function of many organs in animals given their fundamental roles in transporting and exchanging substances to maintain homeostasis within an organism. Therefore, the development and maintenance of these tube-like structures within organs is a vital process. Tubes can form in diverse ways, and advances in our understanding of the molecular and cellular mechanisms underpinning these different modes of tubulogenesis have significant impacts in many biological contexts, including development and disease. This Review discusses recent progress in understanding developmental mechanisms underlying tube formation.


A Phase 2 Basket Study Of Talabostat, A Small-Molecule Inhibitor Of Dipeptidyl Peptidases, Administered In Combination With Pembrolizumab In Patients With Advanced Solid Cancers, Jibran Ahmed, Filip Janku, Daniel D Karp, Sarina A Piha-Paul, Apostolia M Tsimberidou, Timothy Anthony Yap, Bettzy Stephen, Yali Yang, Serdar Gurses, Qian Liu, Juhee Song, Funda Meric-Bernstam, Aung Naing Feb 2025

A Phase 2 Basket Study Of Talabostat, A Small-Molecule Inhibitor Of Dipeptidyl Peptidases, Administered In Combination With Pembrolizumab In Patients With Advanced Solid Cancers, Jibran Ahmed, Filip Janku, Daniel D Karp, Sarina A Piha-Paul, Apostolia M Tsimberidou, Timothy Anthony Yap, Bettzy Stephen, Yali Yang, Serdar Gurses, Qian Liu, Juhee Song, Funda Meric-Bernstam, Aung Naing

Faculty, Staff and Student Publications

Background: Talabostat, an oral small molecule inhibitor of dipeptidyl peptidases (DPP4 and DPP8/9), has shown synergistic activity with immune checkpoint inhibitors in preclinical studies. This open label, phase 2 basket trial assessed the antitumor activity of combining talabostat and pembrolizumab (anti-programmed death-1 antibody) in advanced solid tumor patients.

Methods: The primary objective was assessment of dose-limiting toxicity (DLT) rates in the first six patients (lead-in stage) and response rate (efficacy stage; included cohort A [checkpoint inhibitor (ICI) naive] and cohort B [ICI pretreated]) for the study treatment using the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 and immune RECIST …


Establishment Of The Nichols Strain As The Type Strain Of Treponema Pallidum, Steven J Norris Feb 2025

Establishment Of The Nichols Strain As The Type Strain Of Treponema Pallidum, Steven J Norris

Faculty, Staff and Student Publications

In this article, it is proposed that the Nichols strain of Treponema pallidum be established as the type strain. T. pallidum was first identified as the causative agent of syphilis in 1905, and the Nichols strain was isolated in 1912 by inoculation of a rabbit with cerebrospinal fluid from a patient with neurosyphilis. The Nichols strain has been maintained by serial passage in rabbits for over a century, and historically most studies of T. pallidum have been conducted using this strain. In recent years, a procedure for continuous in vitro culture of T. pallidum in a tissue culture system has …


Patient Outcomes Following Parasagittal Interlaminar Epidural Steroid Injections For Bilateral Lumbar Radicular Symptoms: Correlation Of Contrast Spread With Symptom Relief, Jamal Hasoon, Omar Viswanath, Alan D Kaye, Alberto Pasqualucci, Giustino Varrassi Feb 2025

Patient Outcomes Following Parasagittal Interlaminar Epidural Steroid Injections For Bilateral Lumbar Radicular Symptoms: Correlation Of Contrast Spread With Symptom Relief, Jamal Hasoon, Omar Viswanath, Alan D Kaye, Alberto Pasqualucci, Giustino Varrassi

Faculty, Staff and Student Publications

Introduction Bilateral lumbar radicular symptoms are commonly treated with interlaminar epidural steroid injections (ILESIs). The parasagittal approach often results in unilateral contrast spread, which may influence the degree of bilateral symptom relief. This study evaluates whether unilateral contrast spread correlates with symptom improvement in both ipsilateral and contralateral symptoms. Methods A retrospective review of six patients with bilateral lumbar radiculopathy secondary to lumbar degenerative disc disease, spondylosis, or disc herniation was conducted. All patients underwent ILESIs using a parasagittal approach. The injectate consisted of bupivacaine, preservative-free normal saline, and triamcinolone. Contrast spread was assessed fluoroscopically, and symptom relief was evaluated …


Non-Invasive Prenatal Screening: Testing Motivations And Decision Making In The Low-Risk Population, Jenna K Lea, Blair K Stevens, Shannon Mulligan, Syed S Hashmi, Rebecca Lunstroth, Meagan G Choates Feb 2025

Non-Invasive Prenatal Screening: Testing Motivations And Decision Making In The Low-Risk Population, Jenna K Lea, Blair K Stevens, Shannon Mulligan, Syed S Hashmi, Rebecca Lunstroth, Meagan G Choates

Faculty, Staff and Student Publications

Non-invasive prenatal screening provides a risk assessment for aneuploidies by utilizing cell-free DNA (cfDNA). It is recommended that cell-free DNA screening (cfDNA screening) be offered to all pregnant people regardless of a priori risk for aneuploidy. In the absence of an increased risk, alternative motives for electing cfDNA screening and different levels of informed decision making may arise. Therefore, our study aimed to characterize low-risk patients' motivations for cfDNA screening election, determine how often informed decisions are being made, and compare motivations between informed and uninformed decision makers. A survey that included a modified, validated measure of informed choice (MMIC) …


Angiotensin-(1-9) Improves The Cardioprotective Effects Of Del Nido Cardioplegia Against Ischemia/Reperfusion Injury, Evelyn Mendoza-Torres, Gina Sanchez, Wendy Rosales, María Clara Ospino, Luis Antonio Díaz-Ariza, Yuliet Montoya, John Bustamante, Jaime A Riquelme, Mario Chiong, Sergio Lavandero Feb 2025

Angiotensin-(1-9) Improves The Cardioprotective Effects Of Del Nido Cardioplegia Against Ischemia/Reperfusion Injury, Evelyn Mendoza-Torres, Gina Sanchez, Wendy Rosales, María Clara Ospino, Luis Antonio Díaz-Ariza, Yuliet Montoya, John Bustamante, Jaime A Riquelme, Mario Chiong, Sergio Lavandero

Faculty, Staff and Student Publications

Del Nido cardioplegia (DNC), a blood-and-crystalloid solution containing high and low concentrations of potassium and calcium, respectively, is used as a single-dose antegrade infusion to induce immediate cardiac arrest in the surgery of patients with cardiovascular diseases requiring extracorporeal circulation. Adding cardioprotective molecules may further reduce the damage-triggered ischemia/reperfusion (I/R) injury. Angiotensin-(1-9) (Ang-(1-9)) and angiotensin-(1-7) (Ang-(1-7)), members of the counter-regulatory renin-angiotensin system, have shown cardioprotective effects in cardiac hypertrophy and I/R models. This study aimed to evaluate the effects of Ang-(1-9) and Ang-(1-7), as adjuvants of the DNC, on cardioprotection and ventricular function in isolated rat hearts subjected to I/R …


Nadh-Bound Aif Activates The Mitochondrial Chchd4/Mia40 Chaperone By A Substrate-Mimicry Mechanism, Chris A Brosey, Runze Shen, John A Tainer Feb 2025

Nadh-Bound Aif Activates The Mitochondrial Chchd4/Mia40 Chaperone By A Substrate-Mimicry Mechanism, Chris A Brosey, Runze Shen, John A Tainer

Faculty, Staff and Student Publications

Mitochondrial metabolism requires the chaperoned import of disulfide-stabilized proteins via CHCHD4/MIA40 and its enigmatic interaction with oxidoreductase Apoptosis-inducing factor (AIF). By crystallizing human CHCHD4's AIF-interaction domain with an activated AIF dimer, we uncover how NADH allosterically configures AIF to anchor CHCHD4's β-hairpin and histidine-helix motifs to the inner mitochondrial membrane. The structure further reveals a similarity between the AIF-interaction domain and recognition sequences of CHCHD4 substrates. NMR and X-ray scattering (SAXS) solution measurements, mutational analyses, and biochemistry show that the substrate-mimicking AIF-interaction domain shields CHCHD4's redox-sensitive active site. Disrupting this shield critically activates CHCHD4 substrate affinity and chaperone activity. Regulatory-domain …


Hsp90: Bringing It All Together, Georgios Ioannis Karras, Giorgio Colombo, Andrea N Kravats Feb 2025

Hsp90: Bringing It All Together, Georgios Ioannis Karras, Giorgio Colombo, Andrea N Kravats

Faculty, Staff and Student Publications

Heat-shock protein 90 (Hsp90) is an ancient and multifaceted protein-folding machine essential for most organisms. The past 40 years have uncovered remarkable complexity in the regulation and function of Hsp90, which dwarfs most other machines in the cell in sophistication. Here, we propose four analogies to illustrate Hsp90's sophistication: a multifunctional Swiss Army knife, an automobile engine and its controls, a switchboard acting as a hub and directing signals, and an orchestra conductor setting the tempo of a symphony. Although each of these analogies represents some key Hsp90 activities, none of them captures the entirety of Hsp90's complexity. Together, these …


Open-Chest Cardiac Ultrasound-Mediated Imaging With A Vacuum Coupler, Nilesh Mathuria, Krithik Vishwanath, Giorgio Brero, Blake C Fallon, Antonio Martino, Richard C Willson, Carly S Filgueira, Richard R Bouchard Feb 2025

Open-Chest Cardiac Ultrasound-Mediated Imaging With A Vacuum Coupler, Nilesh Mathuria, Krithik Vishwanath, Giorgio Brero, Blake C Fallon, Antonio Martino, Richard C Willson, Carly S Filgueira, Richard R Bouchard

Faculty, Staff and Student Publications

BACKGROUND: A fundamental obstacle for the preclinical development of ultrasound-(US) mediated cardiac imaging remains cardiac motion, which limits interframe correlation during extended acquisition periods.

PURPOSE: To address this need, we present the design and implementation of a 3D-printed vacuum coupler that stabilizes a US transducer on the epicardial surface of the heart for feasibility assessment and development of advanced, cardiac, US-mediated imaging approaches.

METHODS: The vacuum coupler was 3D printed with biocompatible resins and secured with a standard intraoperative suction aspirator. US-mediated imaging (i.e., B-mode and photoacoustic [PA] imaging) was performed in an open-chest porcine model with and without the …


Host Traits And Temperature Predict Biogeographical Variation In Seagrass Disease Prevalence, F.R. Schenck, J.K. Baum, K.E. Boyer, J.E. Duffy, F.J. Fodrie, J. Gaeckle, Torrie Hanley, C.M. Hereu, K.A. Hovel, P. Jorgensen, D.L. Martin, N.E. O’Connor, B.J. Peterson, J.J. Stachowicz, A.R. Hughes Feb 2025

Host Traits And Temperature Predict Biogeographical Variation In Seagrass Disease Prevalence, F.R. Schenck, J.K. Baum, K.E. Boyer, J.E. Duffy, F.J. Fodrie, J. Gaeckle, Torrie Hanley, C.M. Hereu, K.A. Hovel, P. Jorgensen, D.L. Martin, N.E. O’Connor, B.J. Peterson, J.J. Stachowicz, A.R. Hughes

Biology Faculty Publications

Diseases are ubiquitous in natural systems, with broad effects across populations, communities and ecosystems. However, the drivers of many diseases remain poorly understood, particularly in marine environments, inhibiting effective conservation and management measures. We examined biogeographical patterns of infection in the foundational seagrass Zostera marina by the parasitic protist Labyrinthula zosterae, the causative agent of seagrass wasting disease, across >20° of latitude in two ocean basins. We then identified and characterized relationships among wasting disease prevalence and a suite of host traits and environmental variables. Host characteristics and transmission dynamics explained most of the variance in prevalence across our survey, …


Using Institutional Habitus To Position Colleges And Universities As Social Actors, Derria Byrd Feb 2025

Using Institutional Habitus To Position Colleges And Universities As Social Actors, Derria Byrd

College of Education Faculty Research and Publications

In this article, derria byrd contends that more robust interrogation of the organizational contribution to inequity in higher education would be aided by understanding higher education organizations as social actors. Organizational social actor theory demonstrates that colleges and universities are more than inert contexts in which marginalized students' experiences and outcomes play out. They are entities that possess unique dispositional orientations, motives, and inclinations toward action. This conceptual article argues that engagement with institutional habitus, grounded in Pierre Bourdieu's theory of practice, situates colleges and universities as social actors whose structural positions generate interests, beliefs, and behaviors that tend …


Technology-Enhanced Personalized Learning: Lessons From Online Teaching At Three South-East Asian Universities, Kiran Kaur, Rohaida Mohd Saat, Lieven Demeester, Magdeleine Lew, Wei Leng Neo, Nopphol Pausawasdi, Thasaneeya Ratanaroutai Nopparatjamjomras Feb 2025

Technology-Enhanced Personalized Learning: Lessons From Online Teaching At Three South-East Asian Universities, Kiran Kaur, Rohaida Mohd Saat, Lieven Demeester, Magdeleine Lew, Wei Leng Neo, Nopphol Pausawasdi, Thasaneeya Ratanaroutai Nopparatjamjomras

Research Collection Lee Kong Chian School Of Business

Online teaching during the COVID-19 pandemic compelled many instructors to seek efficient and effective ways to stay connected with their students and improve the learning experience by using a wide range of available technologies. This multiple-case study, in three South-East Asian universities, investigated whether the use of technology in university teaching and learning during that period influenced personalized learning, and if so, how. The study also explored the kinds of institutional support for teachers and learners that led to increased technology-enhanced personalized learning (TEPL). Using a qualitative approach, the study analyzed 23 individual interviews and 3 document analyses (circulars, announcements, …


Climate Effects On Honey Bees Can Be Mitigated By Beekeeping Management In Kenya, Malena Sibaja Leyton, H. Michael G. Lattorff, Nkoba Kiatoko, Fabrice Requier Feb 2025

Climate Effects On Honey Bees Can Be Mitigated By Beekeeping Management In Kenya, Malena Sibaja Leyton, H. Michael G. Lattorff, Nkoba Kiatoko, Fabrice Requier

All Peer-Reviewed Publications

In recent decades, worldwide concerns about the health of honey bees motivated the development of surveys to monitor the colony losses, of which Sub-Saharan Africa has had limited representation. In the context of climate change, understanding how climate affects colony losses has become fundamental, yet literature on this subject is scarce. For the first time, we conducted a survey to estimate the livestock decrease of honey bee colonies in Kenya for the year 2021–2022 to explore the effects of environmental conditions, such as temperature and precipitation, on livestock decrease. We define “livestock decrease” from the beekeeper's perspective, including dead colonies …


American Society For Gastrointestinal Endoscopy Guideline On The Diagnosis And Management Of Gerd: Methodology And Review Of Evidence, Asge Standards Of Practice Committee, Madhav Desai, Wenly Ruan, Nirav C Thosani, Manuel Amaris, J Stephen Scott, Ahmed Saeed, Barham Abu Dayyeh, Marcia Irene Canto, Wasif Abidi, Omeed Alipour, Stuart K Amateau, Natalie Cosgrove, Sherif E Elhanafi, Nauzer Forbes, Divyanshoo R Kohli, Richard S Kwon, Larissa L Fujii-Lau, Jorge D Machicado, Neil B Marya, Saowanee Ngamruengphong, Swati Pawa, Sunil G Sheth, Nikhil R Thiruvengadam, Bashar J Qumseya Feb 2025

American Society For Gastrointestinal Endoscopy Guideline On The Diagnosis And Management Of Gerd: Methodology And Review Of Evidence, Asge Standards Of Practice Committee, Madhav Desai, Wenly Ruan, Nirav C Thosani, Manuel Amaris, J Stephen Scott, Ahmed Saeed, Barham Abu Dayyeh, Marcia Irene Canto, Wasif Abidi, Omeed Alipour, Stuart K Amateau, Natalie Cosgrove, Sherif E Elhanafi, Nauzer Forbes, Divyanshoo R Kohli, Richard S Kwon, Larissa L Fujii-Lau, Jorge D Machicado, Neil B Marya, Saowanee Ngamruengphong, Swati Pawa, Sunil G Sheth, Nikhil R Thiruvengadam, Bashar J Qumseya

Faculty, Staff and Student Publications

This clinical practice guideline from the American Society for Gastrointestinal Endoscopy (ASGE) provides an evidence-based approach for strategies to diagnose and manage GERD. This document was developed using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) framework and serves as an update to the prior ASGE guideline on the role of endoscopy in the management of GERD (2014). The updated guideline addresses the indications for endoscopy in patients with GERD, including patients who have undergone sleeve gastrectomy (SG) and peroral endoscopic myotomy (POEM). It also discusses endoscopic evaluation of gastroesophageal junctional integrity comprehensively and uniformly. Important, this guideline discusses …


Preclinical And Clinical-Scale Magnetic Particle Imaging Of Natural Killer Cells: In Vitro And Ex Vivo Demonstration Of Cellular Sensitivity, Resolution, And Quantification, Olivia C Sehl, Yanwen Yang, Ariana R Anjier, Dmitry Nevozhay, Donghang Cheng, Kelvin Guo, Benjamin Fellows, Abdul Rahman Mohtasebzadeh, Erica E Mason, Toby Sanders, Petrina Kim, David Trease, Dimpy Koul, Patrick W Goodwill, Konstantin Sokolov, Max Wintermark, Nancy Gordon, Joan M Greve, Vidya Gopalakrishnan Feb 2025

Preclinical And Clinical-Scale Magnetic Particle Imaging Of Natural Killer Cells: In Vitro And Ex Vivo Demonstration Of Cellular Sensitivity, Resolution, And Quantification, Olivia C Sehl, Yanwen Yang, Ariana R Anjier, Dmitry Nevozhay, Donghang Cheng, Kelvin Guo, Benjamin Fellows, Abdul Rahman Mohtasebzadeh, Erica E Mason, Toby Sanders, Petrina Kim, David Trease, Dimpy Koul, Patrick W Goodwill, Konstantin Sokolov, Max Wintermark, Nancy Gordon, Joan M Greve, Vidya Gopalakrishnan

Faculty, Staff and Student Publications

Purpose: Clinical adoption of NK cell immunotherapy is underway for medulloblastoma and osteosarcoma, however there is currently little feedback on cell fate after administration. We propose magnetic particle imaging (MPI) may have applications for the quantitative detection of NK cells.

Procedures: Human-derived NK-92 cells were labeled by co-incubation with iron oxide nanoparticles (VivoTrax™) for 24 h then excess nanoparticles were washed with centrifugation. Cytolytic activity of labeled versus unlabeled NK-92 cells was assessed after 4 h of co-incubation with medulloblastoma cells (DAOY) or osteosarcoma cells (LM7 or OS17). Labeled NK-92 cells at two different doses (0.5 or 1 × 106) …


Toward A Biological Definition Of Neuronal And Glial Synucleinopathies, Claudio Soto, Brit Mollenhauer, Oskar Hansson, Un Jung Kang, Roy N Alcalay, David Standaert, Claudia Trenkwalder, Kenneth Marek, Douglas Galasko, Kathleen Poston Feb 2025

Toward A Biological Definition Of Neuronal And Glial Synucleinopathies, Claudio Soto, Brit Mollenhauer, Oskar Hansson, Un Jung Kang, Roy N Alcalay, David Standaert, Claudia Trenkwalder, Kenneth Marek, Douglas Galasko, Kathleen Poston

Faculty, Staff and Student Publications

Cerebral accumulation of alpha-synuclein (αSyn) aggregates is the hallmark event in a group of neurodegenerative diseases-collectively called synucleinopathies-which include Parkinson's disease, dementia with Lewy bodies and multiple system atrophy. Currently, these are diagnosed by their clinical symptoms and definitively confirmed postmortem by the presence of αSyn deposits in the brain. Here, we summarize the drawbacks of the current clinical definition of synucleinopathies and outline the rationale for moving toward an earlier, biology-anchored definition of these disorders, with or without the presence of clinical symptoms. We underscore the utility of the αSyn seed amplification assay to detect aggregated αSyn in living …


On The Acceptance, Commissioning, And Quality Assurance Of Electron Flash Units, Allison Palmiero, Kevin Liu, Julie Colnot, Nitish Chopra, Denae Neill, Luke Connell, Brett Velasquez, Albert C Koong, Steven H Lin, Peter Balter, Ramesh Tailor, Charlotte Robert, Jean-François Germond, Patrik Gonçalves Jorge, Reiner Geyer, Sam Beddar, Raphael Moeckli, Emil Schüler Feb 2025

On The Acceptance, Commissioning, And Quality Assurance Of Electron Flash Units, Allison Palmiero, Kevin Liu, Julie Colnot, Nitish Chopra, Denae Neill, Luke Connell, Brett Velasquez, Albert C Koong, Steven H Lin, Peter Balter, Ramesh Tailor, Charlotte Robert, Jean-François Germond, Patrik Gonçalves Jorge, Reiner Geyer, Sam Beddar, Raphael Moeckli, Emil Schüler

Faculty, Staff and Student Publications

Background and purpose: FLASH or ultra-high dose rate (UHDR) radiation therapy (RT) has gained attention in recent years for its ability to spare normal tissues relative to conventional dose rate (CDR) RT in various preclinical trials. However, clinical implementation of this promising treatment option has been limited because of the lack of availability of accelerators capable of delivering UHDR RT. Commercial options are finally reaching the market that produce electron beams with average dose rates of up to 1000 Gy/s. We established a framework for the acceptance, commissioning, and periodic quality assurance (QA) of electron FLASH units and present an …


Russian Culture: War Saturated And War Sanctified; Reflections On Russia, The Story Of War, Mark R. Elliott Feb 2025

Russian Culture: War Saturated And War Sanctified; Reflections On Russia, The Story Of War, Mark R. Elliott

Occasional Papers on Religion in Eastern Europe

A review of Gregory Carleton, Russia, The Story of War, (Cambridge, MA: Belknap Press of Harvard University Press, 2017)

ISBN: ‎ 978-0674972483


Radical Restorative Justice: Reflections On Conflict, Trauma, And Hope In Chicagoland Schools, Amy J. Cohen, Uma Blanchard Feb 2025

Radical Restorative Justice: Reflections On Conflict, Trauma, And Hope In Chicagoland Schools, Amy J. Cohen, Uma Blanchard

Cardozo Law Review

This Article tracks how abolitionist and reformist debates are unfolding within urban schools’ attempts to smash the school-to-prison pipeline. We document how Chicago-area public school teachers are grappling with new restorative justice programs and their complex and divergent sociopolitical and institutional meanings. Drawing on over forty qualitative interviews with teachers, we illustrate how difficult widespread implementation of new conflict resolution mechanisms, in the name of restorative justice, are turning out to be. We analyze how teachers are interpreting restorative justice practices and the challenges they involve for students, educators, and school administrators who learn and teach and work in hierarchical …


Looking Out For Danger: Theoretical And Empirical Issues In Translating Human Attention Bias Tasks To Assess Animal Affective States, Sarah Kappel, Sarah Collins, Michael Mendl, Carole Fureix Feb 2025

Looking Out For Danger: Theoretical And Empirical Issues In Translating Human Attention Bias Tasks To Assess Animal Affective States, Sarah Kappel, Sarah Collins, Michael Mendl, Carole Fureix

School of Biological and Marine Sciences

Understanding animal emotional (affective) state is highly relevant to various disciplines (e.g., animal welfare, neuroscience, comparative psychology), and has been significantly advanced by translating affect-induced cognitive bias paradigms rooted in human psychology to non-human animal studies. Attention bias (i.e., preferential attention allocation, AB) tests are increasingly used as more practical substitutes to commonly used judgement bias tests. Yet, evidence that AB reflects affective valence in animals is still limited. We review in-depth the concept of attention and AB described in humans and discuss utilising human-derived AB paradigms for measuring animal affective states. We describe key concepts and functions of attention …